name: Sync Plugin Documentation

on:
  issues:
    types: [opened]
  workflow_dispatch:
    inputs:
      plugins:
        description: 'Plugin names to sync (comma-separated, or "all")'
        required: true
        default: 'all'
      source_commit:
        description: 'influxdb3_plugins commit SHA or branch'
        required: false
        default: 'master'

permissions:
  contents: write
  pull-requests: write
  issues: write

jobs:
  sync-plugins:
    runs-on: ubuntu-latest
    # Only run on issues with sync-plugin-docs label or manual dispatch
    if: |
      github.event_name == 'workflow_dispatch' || 
      (github.event_name == 'issues' && contains(github.event.issue.labels.*.name, 'sync-plugin-docs'))
    
    steps:
      - name: Parse issue inputs
        id: parse-inputs
        if: github.event_name == 'issues'
        uses: actions/github-script@v7
        with:
          script: |
            const issue = context.payload.issue;
            const body = issue.body || '';
            
            // Extract plugins and source_commit from issue body
            const pluginsMatch = body.match(/### Plugin Names\s*\n\s*(.+)/);
            const commitMatch = body.match(/### Source Commit\/Branch\s*\n\s*(.+)/);
            
            const plugins = pluginsMatch ? pluginsMatch[1].trim() : 'all';
            const sourceCommit = commitMatch ? commitMatch[1].trim() : 'master';
            
            core.setOutput('plugins', plugins);
            core.setOutput('source_commit', sourceCommit);
            core.setOutput('issue_number', issue.number);

      - name: Set workflow inputs
        id: inputs
        run: |
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            echo "plugins=${{ github.event.inputs.plugins }}" >> $GITHUB_OUTPUT
            echo "source_commit=${{ github.event.inputs.source_commit }}" >> $GITHUB_OUTPUT
            echo "issue_number=" >> $GITHUB_OUTPUT
          else
            echo "plugins=${{ steps.parse-inputs.outputs.plugins }}" >> $GITHUB_OUTPUT
            echo "source_commit=${{ steps.parse-inputs.outputs.source_commit }}" >> $GITHUB_OUTPUT
            echo "issue_number=${{ steps.parse-inputs.outputs.issue_number }}" >> $GITHUB_OUTPUT
          fi

      - name: Update issue status
        if: steps.inputs.outputs.issue_number != ''
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.inputs.outputs.issue_number }},
              body: '🔄 Plugin sync started...\n\nPlugins: `${{ steps.inputs.outputs.plugins }}`\nSource: `${{ steps.inputs.outputs.source_commit }}`'
            });

      - name: Checkout docs-v2
        uses: actions/checkout@v4
        with:
          path: docs-v2
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Checkout influxdb3_plugins (sparse)
        run: |
          git clone --filter=blob:none --sparse https://github.com/influxdata/influxdb3_plugins.git influxdb3_plugins
          cd influxdb3_plugins
          git sparse-checkout set influxdata/ scripts/
          git checkout ${{ steps.inputs.outputs.source_commit }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: 'yarn'
          cache-dependency-path: docs-v2/yarn.lock

      - name: Install dependencies
        run: |
          cd docs-v2
          CYPRESS_INSTALL_BINARY=0 yarn install

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.9'

      - name: Validate plugin READMEs
        id: validate
        run: |
          cd influxdb3_plugins
          
          # Determine which plugins to validate
          if [[ "${{ steps.inputs.outputs.plugins }}" == "all" ]]; then
            PLUGINS=""
          else
            PLUGINS="${{ steps.inputs.outputs.plugins }}"
          fi
          
          # Run validation
          if [[ -n "$PLUGINS" ]]; then
            echo "Validating specific plugins: $PLUGINS"
            python scripts/validate_readme.py --plugins "$PLUGINS" 2>&1 | tee validation.log
          else
            echo "Validating all plugins"
            python scripts/validate_readme.py 2>&1 | tee validation.log
          fi
          
          # Check if validation passed
          if [[ ${PIPESTATUS[0]} -eq 0 ]]; then
            echo "validation_passed=true" >> $GITHUB_OUTPUT
          else
            echo "validation_passed=false" >> $GITHUB_OUTPUT
          fi

      - name: Report validation failure
        if: steps.validate.outputs.validation_passed == 'false'
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            let validationLog = '';
            try {
              validationLog = fs.readFileSync('influxdb3_plugins/validation.log', 'utf8');
            } catch (e) {
              validationLog = 'Could not read validation log';
            }
            
            const issueNumber = '${{ steps.inputs.outputs.issue_number }}';
            if (issueNumber) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: parseInt(issueNumber),
                body: `❌ **Validation Failed**
                
                Plugin READMEs do not meet template requirements. Please fix the following issues in influxdb3_plugins:
                
                \`\`\`
                ${validationLog}
                \`\`\`
                
                See [README_TEMPLATE.md](https://github.com/influxdata/influxdb3_plugins/blob/master/README_TEMPLATE.md) for requirements.`
              });
              
              await github.rest.issues.update({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: parseInt(issueNumber),
                state: 'closed',
                labels: ['sync-plugin-docs', 'validation-failed']
              });
            }
            
            core.setFailed('Plugin validation failed');

      - name: Transform plugin documentation
        if: steps.validate.outputs.validation_passed == 'true'
        run: |
          cd docs-v2
          
          # Set PLUGIN_DIR for the transformation script
          export INFLUXDB3_PLUGINS_PATH="../influxdb3_plugins"
          
          # Run the transformation
          if [[ "${{ steps.inputs.outputs.plugins }}" == "all" ]]; then
            node helper-scripts/influxdb3-plugins/port_to_docs.js
          else
            # Transform specific plugins
            IFS=',' read -ra PLUGIN_ARRAY <<< "${{ steps.inputs.outputs.plugins }}"
            for plugin in "${PLUGIN_ARRAY[@]}"; do
              plugin=$(echo "$plugin" | xargs)  # trim whitespace
              echo "Transforming plugin: $plugin"
              node helper-scripts/influxdb3-plugins/port_to_docs.js --plugin "$plugin"
            done
          fi

      - name: Build Hugo site
        run: |
          cd docs-v2
          npx hugo --quiet --minify

      - name: Setup Playwright
        run: |
          cd docs-v2
          npx playwright install chromium

      - name: Generate screenshots
        id: screenshots
        run: |
          cd docs-v2
          
          # Start Hugo server in background
          npx hugo server --bind 0.0.0.0 --port 1313 --quiet &
          HUGO_PID=$!
          
          # Wait for server to start
          sleep 10
          
          # Create screenshots directory
          mkdir -p plugin-screenshots
          
          # Generate screenshots for changed plugin pages
          node -e "
          const { chromium } = require('playwright');
          const fs = require('fs');
          const path = require('path');
          
          async function captureScreenshots() {
            const browser = await chromium.launch();
            const page = await browser.newPage({ viewport: { width: 1200, height: 800 } });
            
            // Find changed plugin files
            const glob = require('glob');
            const pluginFiles = glob.sync('content/shared/influxdb3-plugins/plugins-library/**/*.md');
            
            for (const file of pluginFiles) {
              const pluginName = path.basename(file, '.md');
              const url = \`http://localhost:1313/influxdb3/core/reference/plugins/\${pluginName}/\`;
              
              try {
                console.log(\`Capturing screenshot for \${pluginName}\`);
                await page.goto(url, { waitUntil: 'networkidle' });
                await page.screenshot({ 
                  path: \`plugin-screenshots/\${pluginName}.png\`,
                  fullPage: true 
                });
              } catch (error) {
                console.log(\`Could not capture \${pluginName}: \${error.message}\`);
              }
            }
            
            await browser.close();
          }
          
          captureScreenshots().catch(console.error);
          "
          
          # Stop Hugo server
          kill $HUGO_PID
          
          # List generated screenshots
          ls -la plugin-screenshots/ || echo "No screenshots generated"
          echo "screenshots_generated=$(ls plugin-screenshots/ 2>/dev/null | wc -l)" >> $GITHUB_OUTPUT

      - name: Create Pull Request
        if: steps.validate.outputs.validation_passed == 'true'
        id: create-pr
        uses: peter-evans/create-pull-request@v5
        with:
          path: docs-v2
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: |
            sync: update plugin documentation from influxdb3_plugins@${{ steps.inputs.outputs.source_commit }}
            
            Plugins: ${{ steps.inputs.outputs.plugins }}
          branch: sync-plugins-${{ github.run_number }}
          title: "Sync plugin documentation: ${{ steps.inputs.outputs.plugins }}"
          body: |
            ## Plugin Documentation Sync
            
            **Source**: influxdb3_plugins@${{ steps.inputs.outputs.source_commit }}  
            **Plugins**: ${{ steps.inputs.outputs.plugins }}  
            **Triggered by**: ${{ github.event_name == 'issues' && format('Issue #{0}', steps.inputs.outputs.issue_number) || 'Manual workflow dispatch' }}
            
            ### Changes Made
            - ✅ Validated source READMEs against template requirements
            - 🔄 Transformed content for docs-v2 compatibility
            - 🖼️ Generated ${{ steps.screenshots.outputs.screenshots_generated }} plugin page screenshots
            
            ### Transformations Applied
            - Removed emoji metadata (already in plugin JSON metadata)
            - Converted relative links to GitHub URLs
            - Added Hugo product shortcodes (`{{% product-name %}}`)
            - Added standard logging section
            - Updated support sections with docs-v2 format
            
            ### Screenshots
            Plugin page previews are available in the `plugin-screenshots/` directory (if any were generated).
            
            ### Review Checklist
            - [ ] All plugin pages render correctly
            - [ ] GitHub links resolve properly
            - [ ] Product shortcodes display correctly
            - [ ] Code examples are properly formatted
            - [ ] Support sections link correctly
            
            ---
            *This PR was automatically generated by the plugin sync workflow.*

      - name: Update issue with success
        if: steps.validate.outputs.validation_passed == 'true' && steps.inputs.outputs.issue_number != ''
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.inputs.outputs.issue_number }},
              body: `✅ **Plugin sync completed successfully!**
              
              **Pull Request**: #${{ steps.create-pr.outputs.pull-request-number }}
              **Plugins synced**: ${{ steps.inputs.outputs.plugins }}
              **Source commit**: ${{ steps.inputs.outputs.source_commit }}
              **Screenshots generated**: ${{ steps.screenshots.outputs.screenshots_generated }}
              
              The PR is ready for review and includes all necessary transformations and validations.`
            });
            
            await github.rest.issues.update({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.inputs.outputs.issue_number }},
              state: 'closed',
              labels: ['sync-plugin-docs', 'completed']
            });

      - name: Report failure
        if: failure() && steps.inputs.outputs.issue_number != ''
        uses: actions/github-script@v7
        with:
          script: |
            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: ${{ steps.inputs.outputs.issue_number }},
              body: `❌ **Plugin sync failed**
              
              Please check the [workflow run](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for details.
              
              You may need to:
              - Check that the source commit exists
              - Verify plugin names are correct
              - Ensure all validation requirements are met`
            });