name: SourceFinder CI/CD Pipeline

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]

env:
  NODE_VERSION: '18.x'
  NODE_ENV: test

jobs:
  # Étape 1: Linting et validation du code
  lint:
    name: Code Quality & Linting
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run ESLint
      run: npm run lint

    - name: Check for security vulnerabilities
      run: npm audit --audit-level=high

  # Étape 2: Tests unitaires
  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-latest
    needs: lint
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run unit tests
      run: npm run test:unit
      env:
        NODE_ENV: test
        LOG_LEVEL: error

    - name: Upload unit test results
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: unit-test-results
        path: coverage/

  # Étape 3: Tests de sécurité
  security-tests:
    name: Security Tests
    runs-on: ubuntu-latest
    needs: lint
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run security tests
      run: npm run test:security
      env:
        NODE_ENV: test
        LOG_LEVEL: error

    - name: Upload security test results
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: security-test-results
        path: coverage/

  # Étape 4: Tests d'intégration
  integration-tests:
    name: Integration Tests
    runs-on: ubuntu-latest
    needs: [unit-tests, security-tests]
    services:
      redis:
        image: redis:7-alpine
        ports:
          - 6379:6379
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run integration tests
      run: npm run test:integration
      env:
        NODE_ENV: test
        LOG_LEVEL: error
        REDIS_URL: redis://localhost:6379/15
        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY_TEST }}

    - name: Upload integration test results
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: integration-test-results
        path: coverage/

  # Étape 5: Tests de performance
  performance-tests:
    name: Performance Tests
    runs-on: ubuntu-latest
    needs: integration-tests
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run performance tests
      run: npm run test:performance
      env:
        NODE_ENV: test
        LOG_LEVEL: error

    - name: Upload performance test results
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: performance-test-results
        path: coverage/

  # Étape 6: Coverage consolidée
  coverage:
    name: Code Coverage Report
    runs-on: ubuntu-latest
    needs: [unit-tests, security-tests, integration-tests, performance-tests]
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run full test suite with coverage
      run: npm run test:coverage
      env:
        NODE_ENV: test
        LOG_LEVEL: error

    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v3
      with:
        token: ${{ secrets.CODECOV_TOKEN }}
        file: ./coverage/lcov.info
        flags: unittests
        name: sourcefinder-coverage
        fail_ci_if_error: true

    - name: Upload coverage report
      uses: actions/upload-artifact@v4
      with:
        name: coverage-report
        path: |
          coverage/
          !coverage/tmp/

  # Étape 7: Build et validation déploiement
  build:
    name: Build & Deployment Validation
    runs-on: ubuntu-latest
    needs: coverage
    strategy:
      matrix:
        node-version: ['16.x', '18.x', '20.x']
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js ${{ matrix.node-version }}
      uses: actions/setup-node@v4
      with:
        node-version: ${{ matrix.node-version }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Build application
      run: npm run build

    - name: Test application startup
      run: |
        timeout 30s npm start &
        sleep 5
        curl --fail http://localhost:3000/health || exit 1
        pkill -f "node server.js"
      env:
        NODE_ENV: production
        PORT: 3000

  # Étape 8: Tests de régression (sur main seulement)
  regression-tests:
    name: Regression Tests
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    needs: build
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0  # Fetch full history for regression analysis

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run regression test suite
      run: |
        npm run test:ci
        npm run test:performance
      env:
        NODE_ENV: test
        LOG_LEVEL: error

    - name: Performance regression check
      run: |
        echo "Checking performance regression..."
        # Comparer les métriques avec le commit précédent
        # (implémentation spécifique selon les outils de monitoring)

  # Étape 9: Sécurité et vulnérabilités
  security-audit:
    name: Security Audit
    runs-on: ubuntu-latest
    needs: lint
    steps:
    - uses: actions/checkout@v4

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: ${{ env.NODE_VERSION }}
        cache: 'npm'

    - name: Install dependencies
      run: npm ci

    - name: Run npm audit
      run: npm audit --audit-level=moderate

    - name: Run Snyk security scan
      uses: snyk/actions/node@master
      continue-on-error: true
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      with:
        args: --severity-threshold=medium

  # Notification des résultats
  notify:
    name: Notify Results
    runs-on: ubuntu-latest
    needs: [coverage, build, regression-tests, security-audit]
    if: always()
    steps:
    - name: Notify success
      if: success()
      run: |
        echo "✅ All tests passed successfully!"
        echo "Coverage report available in artifacts"

    - name: Notify failure
      if: failure()
      run: |
        echo "❌ Some tests failed. Check the logs for details."
        exit 1

# Configuration des environnements de déploiement
deploy-staging:
  name: Deploy to Staging
  runs-on: ubuntu-latest
  needs: [coverage, build]
  if: github.ref == 'refs/heads/develop' && github.event_name == 'push'
  environment:
    name: staging
    url: https://sourcefinder-staging.example.com
  steps:
  - uses: actions/checkout@v4

  - name: Deploy to staging
    run: |
      echo "🚀 Deploying to staging environment..."
      # Commandes de déploiement staging

  - name: Run smoke tests
    run: |
      echo "🧪 Running smoke tests on staging..."
      curl --fail https://sourcefinder-staging.example.com/health

deploy-production:
  name: Deploy to Production
  runs-on: ubuntu-latest
  needs: [regression-tests, security-audit]
  if: github.ref == 'refs/heads/main' && github.event_name == 'push'
  environment:
    name: production
    url: https://sourcefinder.example.com
  steps:
  - uses: actions/checkout@v4

  - name: Deploy to production
    run: |
      echo "🚀 Deploying to production environment..."
      # Commandes de déploiement production

  - name: Run production health check
    run: |
      echo "🏥 Running production health check..."
      curl --fail https://sourcefinder.example.com/health