name: Auto-Promote Pipeline

on:
  workflow_run:
    workflows: ["Deploy to Development"]
    types:
      - completed
    branches: [ develop ]

permissions:
  actions: write
  contents: write

jobs:
  test-and-promote-to-staging:
    name: Test Dev and Auto-Promote to Staging
    runs-on: ubuntu-latest
    environment: development
    if: ${{ github.event.workflow_run.conclusion == 'success' }}
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        ref: develop

    - name: Wait for dev deployment to settle
      run: |
        echo "⏳ Waiting for dev deployment to fully settle..."
        sleep 60

    - name: Run comprehensive dev tests
      run: |
        echo "🧪 Running comprehensive tests on dev environment..."
        
        # Use the canonical Knative domain
        CANONICAL_URL="https://game-2048-dev.game-2048-dev.${{ secrets.DEV_DOMAIN }}"
        echo "Testing canonical domain: $CANONICAL_URL"
        
        canonical_response=$(curl -s -o /dev/null -w "%{http_code}" -L --max-time 30 "$CANONICAL_URL")
        if [ "$canonical_response" != "200" ]; then
          echo "❌ Canonical domain returned HTTP $canonical_response"
          exit 1
        fi
        echo "✅ Canonical domain accessible"
        
        # Test content validation on canonical domain
        echo "Testing content validation on canonical domain..."
        content=$(curl -s -L --max-time 30 "$CANONICAL_URL")
        
        if ! echo "$content" | grep -q "2048"; then
          echo "❌ Content missing 2048 title"
          exit 1
        fi
        
        if ! echo "$content" | grep -q "HOW TO PLAY"; then
          echo "❌ Content missing game instructions"
          exit 1
        fi
        
        if ! echo "$content" | grep -q "style.css"; then
          echo "❌ CSS file not referenced"
          exit 1
        fi
        
        if ! echo "$content" | grep -q "script.js"; then
          echo "❌ JavaScript file not referenced"
          exit 1
        fi
        
        echo "✅ All content validation tests passed"
        
        # Test performance on canonical domain
        echo "Testing performance on canonical domain..."
        response_time=$(curl -s -o /dev/null -w "%{time_total}" -L --max-time 30 "$CANONICAL_URL")
        if (( $(echo "$response_time > 10.0" | bc -l) )); then
          echo "❌ Response time too slow: ${response_time}s"
          exit 1
        fi
        echo "✅ Performance test passed: ${response_time}s"

    - name: Auto-promote develop to staging branch
      uses: actions/github-script@v7
      with:
        github-token: ${{ secrets.GITHUB_TOKEN }}
        script: |
          console.log('🚀 All dev tests passed! Auto-promoting develop to staging branch...');
          
          // Create a merge from develop to staging
          try {
            const response = await github.rest.repos.merge({
              owner: context.repo.owner,
              repo: context.repo.repo,
              base: 'staging',
              head: 'develop',
              commit_message: 'Auto-promote: Merge develop to staging after successful dev tests'
            });
            
            console.log('✅ Successfully merged develop to staging branch');
            console.log('This will trigger staging deployment automatically');
            
            return response;
          } catch (error) {
            if (error.status === 409) {
              console.log('ℹ️ No new commits to merge - staging is already up to date');
            } else {
              throw error;
            }
          }

    - name: Create promotion summary
      run: |
        echo "## 🎯 Auto-Promotion Summary (Develop → Staging)" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "| Stage | Status | Action |" >> $GITHUB_STEP_SUMMARY
        echo "|-------|--------|--------|" >> $GITHUB_STEP_SUMMARY
        echo "| Dev Tests | ✅ Passed | Comprehensive validation completed |" >> $GITHUB_STEP_SUMMARY
        echo "| Staging Branch | 🚀 Updated | Auto-promotion completed |" >> $GITHUB_STEP_SUMMARY
        echo "| Staging Deploy | ⏳ Triggered | Deployment will start automatically |" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### 📋 Tests Performed" >> $GITHUB_STEP_SUMMARY
        echo "- Canonical domain accessibility check" >> $GITHUB_STEP_SUMMARY
        echo "- Content and functionality validation" >> $GITHUB_STEP_SUMMARY
        echo "- Performance testing" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### 🔗 Next Steps" >> $GITHUB_STEP_SUMMARY
        echo "- Staging deployment will start automatically" >> $GITHUB_STEP_SUMMARY
        echo "- Staging tests will run automatically" >> $GITHUB_STEP_SUMMARY
        echo "- Production promotion requires manual approval via staging → main merge" >> $GITHUB_STEP_SUMMARY