name: CI/CD Pipeline

on:
  push:
    branches: [ main, develop, preview-capabilities-phase1-2 ]
  pull_request:
    branches: [ main, develop ]

env:
  NODE_VERSION: '20'
  FIREBASE_PROJECT_ID: ${{ secrets.FIREBASE_PROJECT_ID }}
  SUPABASE_URL: ${{ secrets.SUPABASE_URL }}
  SUPABASE_ANON_KEY: ${{ secrets.SUPABASE_ANON_KEY }}
  SUPABASE_SERVICE_ROLE_KEY: ${{ secrets.SUPABASE_SERVICE_ROLE_KEY }}
  ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
  OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
  GOOGLE_CLOUD_PROJECT_ID: ${{ secrets.GOOGLE_CLOUD_PROJECT_ID }}
  GCS_BUCKET_NAME: ${{ secrets.GCS_BUCKET_NAME }}

jobs:
  # Lint and Test Backend
  backend-lint-test:
    name: Backend - Lint & Test
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'
        cache-dependency-path: backend/package-lock.json
        
    - name: Install backend dependencies
      working-directory: ./backend
      run: npm ci
      
    - name: Run ESLint
      working-directory: ./backend
      run: npm run lint
      
    - name: Run TypeScript check
      working-directory: ./backend
      run: npm run type-check
      
    - name: Run backend tests
      working-directory: ./backend
      run: npm test
      env:
        NODE_ENV: test
        SUPABASE_URL: ${{ env.SUPABASE_URL }}
        SUPABASE_ANON_KEY: ${{ env.SUPABASE_ANON_KEY }}
        
    - name: Upload test coverage
      uses: codecov/codecov-action@v3
      with:
        file: ./backend/coverage/lcov.info
        flags: backend
        name: backend-coverage

  # Lint and Test Frontend
  frontend-lint-test:
    name: Frontend - Lint & Test
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'
        cache-dependency-path: frontend/package-lock.json
        
    - name: Install frontend dependencies
      working-directory: ./frontend
      run: npm ci
      
    - name: Run ESLint
      working-directory: ./frontend
      run: npm run lint
      
    - name: Run TypeScript check
      working-directory: ./frontend
      run: npm run type-check
      
    - name: Run frontend tests
      working-directory: ./frontend
      run: npm test
      env:
        NODE_ENV: test
        
    - name: Upload test coverage
      uses: codecov/codecov-action@v3
      with:
        file: ./frontend/coverage/lcov.info
        flags: frontend
        name: frontend-coverage

  # Security Scan
  security-scan:
    name: Security Scan
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Run Trivy vulnerability scanner
      uses: aquasecurity/trivy-action@master
      with:
        scan-type: 'fs'
        scan-ref: '.'
        format: 'sarif'
        output: 'trivy-results.sarif'
        
    - name: Upload Trivy scan results to GitHub Security tab
      uses: github/codeql-action/upload-sarif@v2
      if: always()
      with:
        sarif_file: 'trivy-results.sarif'

  # Build Backend
  build-backend:
    name: Build Backend
    runs-on: ubuntu-latest
    needs: [backend-lint-test, security-scan]
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'
        cache-dependency-path: backend/package-lock.json
        
    - name: Install backend dependencies
      working-directory: ./backend
      run: npm ci
      
    - name: Build backend
      working-directory: ./backend
      run: npm run build
      
    - name: Upload backend build artifacts
      uses: actions/upload-artifact@v3
      with:
        name: backend-build
        path: backend/dist/
        retention-days: 7

  # Build Frontend
  build-frontend:
    name: Build Frontend
    runs-on: ubuntu-latest
    needs: [frontend-lint-test, security-scan]
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'
        cache-dependency-path: frontend/package-lock.json
        
    - name: Install frontend dependencies
      working-directory: ./frontend
      run: npm ci
      
    - name: Build frontend
      working-directory: ./frontend
      run: npm run build
      
    - name: Upload frontend build artifacts
      uses: actions/upload-artifact@v3
      with:
        name: frontend-build
        path: frontend/dist/
        retention-days: 7

  # Integration Tests
  integration-tests:
    name: Integration Tests
    runs-on: ubuntu-latest
    needs: [build-backend, build-frontend]
    
    services:
      postgres:
        image: postgres:15
        env:
          POSTGRES_PASSWORD: postgres
          POSTGRES_DB: test_db
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 5432:5432
          
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'
        cache-dependency-path: backend/package-lock.json
        
    - name: Download backend build artifacts
      uses: actions/download-artifact@v3
      with:
        name: backend-build
        path: backend/dist/
        
    - name: Install backend dependencies
      working-directory: ./backend
      run: npm ci --only=production
      
    - name: Run integration tests
      working-directory: ./backend
      run: npm run test:integration
      env:
        NODE_ENV: test
        DATABASE_URL: postgresql://postgres:postgres@localhost:5432/test_db
        SUPABASE_URL: ${{ env.SUPABASE_URL }}
        SUPABASE_ANON_KEY: ${{ env.SUPABASE_ANON_KEY }}

  # Deploy to Staging
  deploy-staging:
    name: Deploy to Staging
    runs-on: ubuntu-latest
    needs: [integration-tests]
    if: github.ref == 'refs/heads/develop'
    environment: staging
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Download build artifacts
      uses: actions/download-artifact@v3
      with:
        name: backend-build
        path: backend/dist/
        
    - name: Download frontend build artifacts
      uses: actions/download-artifact@v3
      with:
        name: frontend-build
        path: frontend/dist/
        
    - name: Setup Firebase CLI
      uses: w9jds/firebase-action@master
      with:
        args: deploy --only hosting,functions --project staging-${{ env.FIREBASE_PROJECT_ID }}
      env:
        FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}
        
    - name: Run smoke tests
      run: |
        echo "Running smoke tests against staging environment..."
        # Add smoke test commands here
        curl -f https://staging-${{ env.FIREBASE_PROJECT_ID }}.web.app/health || exit 1

  # Deploy to Production
  deploy-production:
    name: Deploy to Production
    runs-on: ubuntu-latest
    needs: [integration-tests]
    if: github.ref == 'refs/heads/main'
    environment: production
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Download build artifacts
      uses: actions/download-artifact@v3
      with:
        name: backend-build
        path: backend/dist/
        
    - name: Download frontend build artifacts
      uses: actions/download-artifact@v3
      with:
        name: frontend-build
        path: frontend/dist/
        
    - name: Setup Firebase CLI
      uses: w9jds/firebase-action@master
      with:
        args: deploy --only hosting,functions --project ${{ env.FIREBASE_PROJECT_ID }}
      env:
        FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}
        
    - name: Run production health checks
      run: |
        echo "Running health checks against production environment..."
        # Add health check commands here
        curl -f https://${{ env.FIREBASE_PROJECT_ID }}.web.app/health || exit 1
        
    - name: Notify deployment success
      if: success()
      run: |
        echo "Production deployment successful!"
        # Add notification logic here (Slack, email, etc.)

  # Performance Testing
  performance-tests:
    name: Performance Tests
    runs-on: ubuntu-latest
    needs: [deploy-staging]
    if: github.ref == 'refs/heads/develop'
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        
    - name: Install dependencies
      run: npm ci
      
    - name: Run performance tests
      run: npm run test:performance
      env:
        TEST_URL: https://staging-${{ env.FIREBASE_PROJECT_ID }}.web.app
        
    - name: Upload performance results
      uses: actions/upload-artifact@v3
      with:
        name: performance-results
        path: performance-results/
        retention-days: 30

  # Dependency Updates
  dependency-updates:
    name: Dependency Updates
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule'
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        
    - name: Check for outdated dependencies
      run: |
        echo "Checking for outdated dependencies..."
        npm outdated || echo "No outdated dependencies found"
        
    - name: Create Dependabot PR
      if: failure()
      run: |
        echo "Creating Dependabot PR for outdated dependencies..."
        # Add logic to create PR with dependency updates