name: Release

on:
  push:
    branches: [main]

env:
  IMAGE: ${{ vars.REGISTRY_HOST }}/${{ gitea.repository_owner }}/catalyst

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-node@v4
        with:
          node-version: 'lts/*'

      - run: npm ci
      - run: npm test

      - name: Read version
        run: |
          VERSION=$(node -p "require('./package.json').version")
          echo "VERSION=${VERSION}" >> $GITEA_ENV

      - name: Assert tag does not exist
        run: |
          if git ls-remote --tags origin "refs/tags/v${{ env.VERSION }}" | grep -q .; then
            echo "ERROR: tag v${{ env.VERSION }} already exists — bump version in package.json before merging to main."
            exit 1
          fi

      - name: Create and push tag
        run: |
          git config user.name "gitea-actions"
          git config user.email "actions@gitea"
          git tag "v${{ env.VERSION }}"
          git push origin "v${{ env.VERSION }}"

      - name: Generate release notes
        run: |
          LAST_TAG=$(git describe --tags --abbrev=0 HEAD^ 2>/dev/null || echo "")
          if [ -n "$LAST_TAG" ]; then
            git log "${LAST_TAG}..HEAD" --pretty=format:"- %s" --no-merges > /tmp/release_notes.txt
          else
            git log --pretty=format:"- %s" --no-merges > /tmp/release_notes.txt
          fi

      - name: Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE }}
          tags: |
            type=semver,pattern={{version}},value=v${{ env.VERSION }}
            type=semver,pattern={{major}}.{{minor}},value=v${{ env.VERSION }}
            type=sha,prefix=,format=short
            type=raw,value=latest

      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ vars.REGISTRY_HOST }}
          username: ${{ gitea.actor }}
          password: ${{ secrets.TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}

      - name: Create Gitea release
        run: |
          cat > /tmp/make_release.py << 'PYEOF'
          import json, os
          v   = os.environ['VERSION']
          img = os.environ['IMAGE']
          raw = open('/tmp/release_notes.txt').read().strip()
          feats, fixes = [], []
          for line in raw.splitlines():
              msg = line.lstrip('- ').strip()
              if msg.startswith('feat:'):
                  feats.append('- ' + msg[5:].strip())
              elif msg.startswith('fix:'):
                  fixes.append('- ' + msg[4:].strip())
          sections = []
          if feats:
              sections.append('### New Features\n\n' + '\n'.join(feats))
          if fixes:
              sections.append('### Bug Fixes\n\n' + '\n'.join(fixes))
          notes = '\n\n'.join(sections) or '_No changes_'
          body  = notes + '\n\n### Image\n\n' + img + ':' + v
          payload = {'tag_name': 'v'+v, 'name': 'Catalyst v'+v, 'body': body, 'draft': False, 'prerelease': False}
          open('/tmp/release_body.json', 'w').write(json.dumps(payload))
          PYEOF
          python3 /tmp/make_release.py
          curl -sf -X POST \
            -H "Authorization: token ${{ secrets.TOKEN }}" \
            -H "Content-Type: application/json" \
            "${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases" \
            --data @/tmp/release_body.json