name: FastAPI CI/CD

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  test-and-deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

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

      - name: Run tests
        run: pytest -v

      - name: Build Docker image
        run: docker build -t fastapi-demo:latest .

      - name: Deploy to home server
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: |
          docker rm -f fastapi-demo || true

          docker run -d \
            --name fastapi-demo \
            --network web \
            --restart unless-stopped \
            -p 127.0.0.1:8000:8000 \
            fastapi-demo:latest

      - name: Health check
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        run: |
          for i in $(seq 1 15); do
            if docker exec fastapi-demo python -c \
              "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health', timeout=2)"; then
              echo "Deployment successful!"
              exit 0
            fi
            sleep 2
          done

          docker logs fastapi-demo
          exit 1