name: Publish to PyPI

on:
  push:
    tags:
      - "v*"

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          python-version: "3.13"
      - run: pip install build
      - run: python -m build
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: dist
          path: dist/

  publish:
    needs: build
    runs-on: ubuntu-latest
    environment: release
    permissions:
      id-token: write
    steps:
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: dist
          path: dist/
      - uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0

  github-release:
    needs: publish
    runs-on: ubuntu-latest
    permissions:
      contents: write
      id-token: write # keyless Sigstore signing (OIDC); no signing key exists
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: dist
          path: dist/
      - name: Sign artifacts with Sigstore (keyless, OIDC)
        # Produces dist/<artifact>.sigstore.json bundles next to each wheel/sdist.
        # The 'gh release create dist/*' step below then attaches them to the
        # GitHub Release, which is where Scorecard's Signed-Releases check looks.
        # release-signing-artifacts is disabled: the action's own auto-attach only
        # fires on a 'release: published' event, but we trigger on 'push: tags',
        # so we upload the bundles ourselves via the dist/* glob.
        uses: sigstore/gh-action-sigstore-python@04cffa1d795717b140764e8b640de88853c92acc # v3.3.0
        with:
          inputs: ./dist/*.tar.gz ./dist/*.whl
          release-signing-artifacts: false
      - name: Extract latest CHANGELOG section
        run: |
          # Grab the topmost "## [...]" block from CHANGELOG.md as release notes.
          awk '/^## \[/{c++} c==1' CHANGELOG.md | sed '/^---$/d' > release_notes.md
          echo "Release notes:" && cat release_notes.md
      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release create "${GITHUB_REF_NAME}" \
            --title "${GITHUB_REF_NAME}" \
            --notes-file release_notes.md \
            dist/*