name: Code Quality

on:
  pull_request:
    types: [opened, synchronize, reopened]

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  code-quality:
    runs-on: self-hosted
    name: Code Quality Checks
    
    steps:
      - name: Checkout code
        uses: https://code.forgejo.org/actions/checkout@v4
        with:
          fetch-depth: 0  # Full history for better analysis
          
      - name: Setup Node.js
        run: |
          node --version
          npm --version
          
      - name: Install dependencies
        run: npm ci
        
      - name: Check code complexity
        run: |
          echo "Analyzing code complexity..."
          npx -y complexity-report src/**/*.ts src/**/*.js --format json > complexity.json || true
          
          node -e "
          try {
            const report = JSON.parse(require('fs').readFileSync('complexity.json', 'utf8'));
            console.log('\\n📊 Code Complexity Report:');
            
            const files = report.reports || [];
            const complex = files.filter(f => f.aggregate?.cyclomatic > 10);
            
            if (complex.length > 0) {
              console.log('\\n⚠️  Files with high complexity (>10):');
              complex.forEach(f => {
                console.log(\`  - \${f.path}: Cyclomatic complexity = \${f.aggregate.cyclomatic}\`);
              });
            } else {
              console.log('✅ All files have acceptable complexity');
            }
          } catch (e) {
            console.log('ℹ️  Complexity analysis not available');
          }
          "
          
      - name: Check for console.log statements
        run: |
          echo "Checking for console.log statements..."
          FILES=$(find src/ -name "*.ts" -o -name "*.js" | xargs grep -l "console\.log" || true)
          
          if [ -n "$FILES" ]; then
            echo "⚠️  Found console.log statements (consider using proper logging):"
            echo "$FILES"
          else
            echo "✅ No console.log statements in source code"
          fi
          
      - name: Check for TODO/FIXME comments
        run: |
          echo "Checking for TODO/FIXME comments..."
          TODOS=$(find . -name "*.ts" -o -name "*.js" | grep -v node_modules | grep -v dist | xargs grep -l "TODO\|FIXME\|HACK\|XXX" || true)
          
          if [ -n "$TODOS" ]; then
            echo "📝 Found TODO/FIXME comments:"
            echo "$TODOS"
            echo ""
            echo "ℹ️  Consider creating issues for these items"
          else
            echo "✅ No TODO/FIXME comments found"
          fi
          
      - name: Check for large files
        run: |
          echo "Checking for large files..."
          # Use du to find files larger than 1MB (1024KB)
          LARGE_FILES=$(find . -type f \
            -not -path "./node_modules/*" \
            -not -path "./.git/*" \
            -not -path "./dist/*" \
            -not -path "./coverage/*" \
            -not -name "*.db" \
            -not -name "package-lock.json" \
            -exec sh -c 'size=$(du -k "$1" 2>/dev/null | cut -f1); [ "$size" -gt 1024 ] && echo "$1"' _ {} \;)
          
          if [ -n "$LARGE_FILES" ]; then
            echo "⚠️  Found large files (>1MB):"
            echo "$LARGE_FILES" | xargs -I {} sh -c 'echo "  - {} ($(du -h {} | cut -f1))"'
            echo ""
            echo "Consider if these files should be in the repository"
          else
            echo "✅ No large files detected"
          fi
          
      - name: Check TypeScript strict mode
        run: |
          echo "Verifying TypeScript strict mode..."
          STRICT=$(grep -E '"strict":\s*true' tsconfig.json)
          
          if [ -n "$STRICT" ]; then
            echo "✅ TypeScript strict mode is enabled"
          else
            echo "⚠️  Consider enabling TypeScript strict mode for better type safety"
          fi
          
      - name: Analyze import statements
        run: |
          echo "Analyzing imports..."
          
          # Check for circular dependencies
          npx -y madge --circular --extensions ts,js src/ || true
          
          # Check for unused exports
          echo ""
          echo "Checking for potentially unused exports..."
          npx -y ts-unused-exports tsconfig.json --excludePathsFromReport=src/types || true
          
      - name: Generate PR comment
        if: always()
        run: |
          echo "## 🔍 Code Quality Report" > pr-comment.md
          echo "" >> pr-comment.md
          echo "All automated code quality checks have been run. Please review the logs above for details." >> pr-comment.md
          echo "" >> pr-comment.md
          echo "### Checklist" >> pr-comment.md
          echo "- [ ] ESLint passes" >> pr-comment.md
          echo "- [ ] TypeScript compiles without errors" >> pr-comment.md
          echo "- [ ] Tests pass" >> pr-comment.md
          echo "- [ ] No high complexity code" >> pr-comment.md
          echo "- [ ] No hardcoded secrets" >> pr-comment.md
          echo "" >> pr-comment.md
          echo "_This comment was generated automatically by the Code Quality workflow._" >> pr-comment.md