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 }}