name: Generate Release Notes

on:
  push:
    tags:
      - 'v*.*.*'  # Triggers on version tags like v1.0.0, v2.1.3, etc.

permissions:
  contents: write  # Needed to create/update releases

jobs:
  release-notes:
    name: Generate and publish release notes
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          fetch-depth: 0  # Fetch all history for git-cliff

      - name: Get previous tag
        id: previoustag
        run: |
          PREVIOUS_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
          echo "previous_tag=${PREVIOUS_TAG}" >> $GITHUB_OUTPUT
          echo "Previous tag: ${PREVIOUS_TAG}"

      - name: Install git-cliff
        run: |
          wget https://github.com/orhun/git-cliff/releases/download/v2.4.0/git-cliff-2.4.0-x86_64-unknown-linux-gnu.tar.gz
          tar -xzf git-cliff-2.4.0-x86_64-unknown-linux-gnu.tar.gz
          sudo mv git-cliff-2.4.0/git-cliff /usr/local/bin/
          git-cliff --version

      - name: Generate release notes
        id: release_notes
        run: |
          FROM_TAG="${{ steps.previoustag.outputs.previous_tag }}"
          TO_TAG="${GITHUB_REF#refs/tags/}"

          echo "Generating release notes from ${FROM_TAG} to ${TO_TAG}"

          # Use our script with git-cliff backend (AI disabled in CI)
          # git-cliff will handle filtering via cliff.toml
          USE_AI=false ./scripts/generate-release-notes "${FROM_TAG}" "${TO_TAG}" > release-notes.md

          # Output for GitHub Actions
          {
            echo 'notes<<EOF'
            cat release-notes.md
            echo EOF
          } >> $GITHUB_OUTPUT      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          body: ${{ steps.release_notes.outputs.notes }}
          draft: false
          prerelease: false
          generate_release_notes: false  # We provide our own
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Summary
        run: |
          echo "✅ Release notes generated and published!" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Tag:** ${GITHUB_REF#refs/tags/}" >> $GITHUB_STEP_SUMMARY
          echo "**Previous tag:** ${{ steps.previoustag.outputs.previous_tag }}" >> $GITHUB_STEP_SUMMARY