name: CI

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

env:
  PYTHON_VERSION: '3.11'
  NODE_VERSION: '20'

# Cancel in-progress runs for the same branch
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # ============================================================================
  # Backend Checks
  # ============================================================================

  backend-lint:
    name: Backend Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install ruff
        run: pip install ruff

      - name: Run ruff check
        run: ruff check backend/

      - name: Run ruff format check
        run: ruff format --check backend/

  backend-tests:
    name: Backend Tests
    runs-on: ubuntu-latest
    needs: backend-lint
    steps:
      - uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Cache pip
        uses: actions/cache@v4
        with:
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}
          restore-keys: |
            ${{ runner.os }}-pip-

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt
          pip install pytest pytest-asyncio pytest-cov

      - name: Run tests
        timeout-minutes: 10
        run: |
          cd backend
          python -m pytest tests/ -v --tb=short

  # ============================================================================
  # Frontend Checks
  # ============================================================================

  frontend-lint:
    name: Frontend Lint
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

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

      - name: Run ESLint
        working-directory: frontend
        run: npm run lint

  frontend-typecheck:
    name: Frontend Type Check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

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

      - name: Run TypeScript check
        working-directory: frontend
        run: npx tsc --noEmit

  frontend-tests:
    name: Frontend Tests
    runs-on: ubuntu-latest
    needs: [frontend-lint, frontend-typecheck]
    steps:
      - uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

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

      - name: Run tests
        timeout-minutes: 10
        working-directory: frontend
        run: npm run test:run

  frontend-build:
    name: Frontend Build
    runs-on: ubuntu-latest
    needs: [frontend-tests]
    steps:
      - uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: 'npm'
          cache-dependency-path: frontend/package-lock.json

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

      - name: Build
        working-directory: frontend
        run: npm run build

  # ============================================================================
  # Docker Tests (matches test_docker.sh)
  # ============================================================================

  docker-test:
    name: Docker Build
    runs-on: ubuntu-latest
    timeout-minutes: 20
    needs: [backend-tests, frontend-build]
    steps:
      - uses: actions/checkout@v4

      # Test 1: Docker Build
      - name: Build production image
        run: docker build -t bambuddy:test .

      - name: Verify backend imports
        run: docker run --rm bambuddy:test python -c "import backend.app.main; print('Backend imports OK')"

      - name: Verify static files exist
        run: docker run --rm bambuddy:test test -d /app/static

      # Test 2: Backend Unit Tests in Docker
      - name: Build backend test image
        run: docker compose -f docker-compose.test.yml build backend-test

      - name: Run backend tests in Docker
        run: docker compose -f docker-compose.test.yml run --rm backend-test

      # Test 3: Frontend Unit Tests in Docker
      - name: Build frontend test image
        run: docker compose -f docker-compose.test.yml build frontend-test

      - name: Run frontend tests in Docker
        run: docker compose -f docker-compose.test.yml run --rm frontend-test

      # Test 4: Integration Tests
      - name: Build integration container
        run: docker compose -f docker-compose.test.yml build integration

      - name: Start integration container
        run: |
          docker compose -f docker-compose.test.yml up -d integration
          echo "Waiting for container to be healthy..."
          for i in {1..30}; do
            if docker compose -f docker-compose.test.yml ps integration | grep -q "healthy"; then
              echo "Container is healthy"
              break
            fi
            sleep 2
          done

      - name: Test health endpoint
        run: |
          HEALTH=$(docker compose -f docker-compose.test.yml exec -T integration curl -s http://localhost:8000/health)
          echo "$HEALTH"
          echo "$HEALTH" | grep -q "healthy"

      - name: Test API endpoint
        run: |
          docker compose -f docker-compose.test.yml exec -T integration curl -s http://localhost:8000/api/v1/settings

      - name: Test static files served
        run: |
          STATUS=$(docker compose -f docker-compose.test.yml exec -T integration curl -s -o /dev/null -w "%{http_code}" http://localhost:8000/)
          echo "Static files HTTP status: $STATUS"
          [ "$STATUS" = "200" ]

      - name: Show logs on failure
        if: failure()
        run: docker compose -f docker-compose.test.yml logs

      - name: Cleanup
        if: always()
        run: docker compose -f docker-compose.test.yml down -v --remove-orphans