name: Release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write
  packages: write

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Generate Release Notes
        id: notes
        run: |
          # Get the tag message or generate from commits
          TAG_MESSAGE=$(git tag -l --format='%(contents)' ${{ github.ref_name }})
          if [ -z "$TAG_MESSAGE" ]; then
            # Generate from commit messages since last tag
            PREV_TAG=$(git describe --tags --abbrev=0 ${{ github.ref_name }}^ 2>/dev/null || echo "")
            if [ -z "$PREV_TAG" ]; then
              COMMITS=$(git log --pretty=format:"- %s (%h)" ${{ github.ref_name }})
            else
              COMMITS=$(git log --pretty=format:"- %s (%h)" ${PREV_TAG}..${{ github.ref_name }})
            fi
            NOTES="## Changes\n\n${COMMITS}\n\n## Docker Image\n\n\`\`\`bash\ndocker pull ghcr.io/${{ github.repository }}:${{ github.ref_name }}\n\`\`\`"
          else
            NOTES="${TAG_MESSAGE}\n\n## Docker Image\n\n\`\`\`bash\ndocker pull ghcr.io/${{ github.repository }}:${{ github.ref_name }}\n\`\`\`"
          fi
          echo "notes<<EOF" >> $GITHUB_OUTPUT
          echo -e "$NOTES" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Create Release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref_name }}
          release_name: Release ${{ github.ref_name }}
          body: ${{ steps.notes.outputs.notes }}
          draft: false
          prerelease: false