name: CI - Test & Build

on:
  push:
    branches: [ main, develop, 'feature/**', 'claude/**' ]
  pull_request:
    branches: [ main, develop ]

env:
  NODE_VERSION: '22'

jobs:
  # ============================================
  # Lint & Type Check
  # ============================================
  lint:
    name: Lint & Type Check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install root dependencies
        run: npm ci

      - name: Install frontend dependencies
        working-directory: frontend
        run: npm ci

      - name: Install backend dependencies
        working-directory: backend
        run: npm ci

      - name: Run lint gate
        run: npm run lint

  # ============================================
  # Backend Unit Tests
  # ============================================
  backend-tests:
    name: Backend Unit Tests
    runs-on: ubuntu-latest
    services:
      mariadb:
        image: mariadb:10.11
        env:
          MYSQL_ROOT_PASSWORD: testpassword
          MYSQL_DATABASE: tilbudgivern_test
          MYSQL_USER: testuser
          MYSQL_PASSWORD: testpassword
        ports:
          - 3306:3306
        options: >-
          --health-cmd="mysqladmin ping -h localhost"
          --health-interval=10s
          --health-timeout=5s
          --health-retries=5

    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install backend dependencies
        working-directory: backend
        run: npm ci

      - name: Wait for MariaDB
        run: |
          while ! mysqladmin ping -h"127.0.0.1" --silent; do
            sleep 1
          done

      - name: Run backend tests
        working-directory: backend
        env:
          DB_HOST: 127.0.0.1
          DB_PORT: 3306
          DB_USER: testuser
          DB_PASSWORD: testpassword
          DB_NAME: tilbudgivern_test
          NODE_ENV: test
        run: npm test -- --coverage --passWithNoTests

      - name: Upload coverage report
        uses: actions/upload-artifact@v7
        if: always()
        # Artifact upload must never fail the job (storage quota can be full)
        continue-on-error: true
        with:
          name: backend-coverage
          path: backend/coverage
          retention-days: 3

  # ============================================
  # Frontend Build
  # ============================================
  frontend-build:
    name: Frontend Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install frontend dependencies
        working-directory: frontend
        run: npm ci

      - name: Build frontend
        working-directory: frontend
        env:
          CI: false  # Prevent treating warnings as errors
        run: npm run build

      - name: Upload frontend build artifact
        uses: actions/upload-artifact@v7
        # Artifact upload must never fail the job (storage quota can be full)
        continue-on-error: true
        with:
          name: frontend-build
          path: frontend/build
          retention-days: 3

  # ============================================
  # E2E Tests (Playwright)
  # ============================================
  e2e-tests:
    name: E2E Tests (Playwright)
    runs-on: ubuntu-latest
    needs: [frontend-build, backend-tests]
    if: github.event_name == 'pull_request'
    services:
      mariadb:
        image: mariadb:10.11
        env:
          MYSQL_ROOT_PASSWORD: testpassword
          MYSQL_DATABASE: tilbudgivern_test
          MYSQL_USER: testuser
          MYSQL_PASSWORD: testpassword
        ports:
          - 3306:3306
        options: >-
          --health-cmd="mysqladmin ping -h localhost"
          --health-interval=10s
          --health-timeout=5s
          --health-retries=5

    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install dependencies
        run: |
          npm ci
          cd frontend && npm ci
          cd ../backend && npm ci
          cd ../tests && npm ci

      # Build in-job instead of downloading the frontend-build artifact -
      # artifact upload is best-effort and can be skipped on full quota
      - name: Build frontend
        working-directory: frontend
        env:
          CI: false
        run: npm run build

      - name: Install Playwright browsers
        working-directory: tests
        run: npx playwright install --with-deps chromium

      - name: Wait for MariaDB
        run: |
          while ! mysqladmin ping -h"127.0.0.1" --silent; do
            sleep 1
          done

      - name: Start server
        env:
          DB_HOST: 127.0.0.1
          DB_PORT: 3306
          DB_USER: testuser
          DB_PASSWORD: testpassword
          DB_NAME: tilbudgivern_test
          PORT: 4032
          NODE_ENV: test
          JWT_ACCESS_SECRET: ci-only-access-secret-not-for-production
          JWT_REFRESH_SECRET: ci-only-refresh-secret-not-for-production
          AUTH_USERNAME: ci-test-user
          AUTH_PASSWORD: ci-test-password
          ORDRESTYRING_API_TOKEN: ci-test-token-no-network-use
          ORDRESTYRING_AUTO_SYNC_DISABLED: true
        run: |
          cd backend && node unified-server.js &
          sleep 10
          curl -f http://localhost:4032/api/health || exit 1

      - name: Run blocking carpenter smoke test
        working-directory: tests
        env:
          PLAYWRIGHT_BASE_URL: http://localhost:4032
          PLAYWRIGHT_USERNAME: ci-test-user
          PLAYWRIGHT_PASSWORD: ci-test-password
        run: npx playwright test full-roof-quote-flow.spec.js --project=chromium --reporter=list

      - name: Run extended Playwright tests
        working-directory: tests
        env:
          PLAYWRIGHT_BASE_URL: http://localhost:4032
          PLAYWRIGHT_USERNAME: ci-test-user
          PLAYWRIGHT_PASSWORD: ci-test-password
        run: npx playwright test --project=chromium --reporter=html --grep-invert "full carpenter roof quote smoke flow"
        continue-on-error: true

      - name: Upload Playwright report
        uses: actions/upload-artifact@v7
        if: always()
        continue-on-error: true
        with:
          name: playwright-report
          path: tests/playwright-report
          retention-days: 3

      - name: Upload Playwright screenshots
        uses: actions/upload-artifact@v7
        if: failure()
        continue-on-error: true
        with:
          name: playwright-screenshots
          path: tests/test-results
          retention-days: 3

  # ============================================
  # Security Scan
  # ============================================
  security-scan:
    name: Security Scan
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Setup Node.js
        uses: actions/setup-node@v6
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'

      - name: Install dependencies
        run: |
          npm ci
          cd frontend && npm ci
          cd ../backend && npm ci

      - name: Run npm audit (frontend)
        working-directory: frontend
        run: npm audit --audit-level=high
        continue-on-error: true

      - name: Run npm audit (backend)
        working-directory: backend
        run: npm audit --audit-level=high
        continue-on-error: true

  # ============================================
  # Summary Job
  # ============================================
  ci-summary:
    name: CI Summary
    runs-on: ubuntu-latest
    needs: [lint, backend-tests, frontend-build, security-scan, e2e-tests]
    if: always()
    steps:
      - name: Check CI status
        run: |
          if [[ "${{ needs.lint.result }}" == "failure" ]] || \
             [[ "${{ needs.backend-tests.result }}" == "failure" ]] || \
             [[ "${{ needs.frontend-build.result }}" == "failure" ]] || \
             [[ "${{ needs.e2e-tests.result }}" == "failure" ]]; then
            echo "CI failed!"
            exit 1
          fi
          echo "CI passed successfully!"