name: Validate Registry on PR

on:
  pull_request:
    branches:
      - main
      - dev
    paths:
      - '.opencode/**'
      - 'registry.json'
      - 'scripts/validate-registry.sh'
      - 'scripts/auto-detect-components.sh'
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  validate-and-update:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout PR branch
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}
      
      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y jq
      
      - name: Make scripts executable
        run: |
          chmod +x scripts/validate-registry.sh
          chmod +x scripts/auto-detect-components.sh
          chmod +x scripts/register-component.sh
      
      - name: Auto-detect new components
        id: auto_detect
        run: |
          echo "## 🔍 Auto-Detection Results" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          
          # Run auto-detect in dry-run mode first to see what would be added
          if ./scripts/auto-detect-components.sh --dry-run > /tmp/detect-output.txt 2>&1; then
            cat /tmp/detect-output.txt >> $GITHUB_STEP_SUMMARY
            
            # Check if new components were found
            if grep -q "Found.*new component" /tmp/detect-output.txt; then
              echo "new_components=true" >> $GITHUB_OUTPUT
              echo "" >> $GITHUB_STEP_SUMMARY
              echo "⚠️ New components detected - will auto-add to registry" >> $GITHUB_STEP_SUMMARY
            else
              echo "new_components=false" >> $GITHUB_OUTPUT
              echo "✅ No new components found" >> $GITHUB_STEP_SUMMARY
            fi
          else
            echo "new_components=false" >> $GITHUB_OUTPUT
            echo "❌ Auto-detection failed" >> $GITHUB_STEP_SUMMARY
          fi
      
      - name: Add new components to registry
        if: steps.auto_detect.outputs.new_components == 'true'
        run: |
          echo "## 📝 Adding New Components" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          
          ./scripts/auto-detect-components.sh --auto-add | tee -a $GITHUB_STEP_SUMMARY
      
      - name: Validate registry
        id: validate
        run: |
          echo "## ✅ Registry Validation" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          
          if ./scripts/validate-registry.sh -v > /tmp/validation-output.txt 2>&1; then
            echo "validation=passed" >> $GITHUB_OUTPUT
            echo "✅ All registry paths are valid!" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
            tail -20 /tmp/validation-output.txt >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
          else
            echo "validation=failed" >> $GITHUB_OUTPUT
            echo "❌ Registry validation failed!" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
            cat /tmp/validation-output.txt >> $GITHUB_STEP_SUMMARY
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
            exit 1
          fi
      
      - name: Commit registry updates
        if: steps.auto_detect.outputs.new_components == 'true'
        run: |
          git config --local user.email "github-actions[bot]@users.noreply.github.com"
          git config --local user.name "github-actions[bot]"
          
          if ! git diff --quiet registry.json; then
            git add registry.json
            git commit -m "chore: auto-update registry with new components [skip ci]"
            git push origin ${{ github.head_ref }}
            
            echo "## 🚀 Registry Updated" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Registry has been automatically updated with new components." >> $GITHUB_STEP_SUMMARY
            echo "Changes have been pushed to this PR branch." >> $GITHUB_STEP_SUMMARY
          fi
      
      - name: Post validation summary
        if: always()
        run: |
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "---" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          
          if [ "${{ steps.validate.outputs.validation }}" = "passed" ]; then
            echo "### ✅ Validation Passed" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "All registry paths are valid and point to existing files." >> $GITHUB_STEP_SUMMARY
            echo "This PR is ready for review!" >> $GITHUB_STEP_SUMMARY
          else
            echo "### ❌ Validation Failed" >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "Registry validation failed. Please fix the issues above." >> $GITHUB_STEP_SUMMARY
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "**Common fixes:**" >> $GITHUB_STEP_SUMMARY
            echo "- Update paths in registry.json to match actual file locations" >> $GITHUB_STEP_SUMMARY
            echo "- Remove entries for deleted files" >> $GITHUB_STEP_SUMMARY
            echo "- Run \`./scripts/validate-registry.sh --fix\` locally for suggestions" >> $GITHUB_STEP_SUMMARY
          fi
      
      - name: Fail if validation failed
        if: steps.validate.outputs.validation == 'failed'
        run: |
          echo "❌ Registry validation failed - blocking PR merge"
          exit 1