name: Update Plugin Index
on:
  push:
    branches: [ main ]
    paths:
      - 'plugins/*.json'

jobs:
  update-index:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
        
      - name: Generate index.json
        run: |
          cd plugins
          echo '{' > index.json
          echo '  "version": "1.0.0",' >> index.json
          echo '  "updatedAt": "'$(date -u +"%Y-%m-%dT%H:%M:%S.000Z")'",' >> index.json
          echo '  "plugins": [' >> index.json
          
          first=true
          for file in *.json; do
            if [ "$file" != "index.json" ]; then
              plugin_id="${file%.json}"
              if [ "$first" = true ]; then
                echo "    \"$plugin_id\"" >> index.json
                first=false
              else
                echo ",    \"$plugin_id\"" >> index.json
              fi
            fi
          done | sed '$ s/,$//'
          
          echo '  ]' >> index.json
          echo '}' >> index.json
          
      - name: Commit index.json
        run: |
          git config user.name "Gitea Actions"
          git config user.email "actions@gitea.local"
          git add plugins/index.json
          if git diff --staged --quiet; then
            echo "No changes to index.json"
          else
            git commit -m "Auto-update plugin index [skip ci]"
            git push
          fi