name: CI

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

jobs:
  backend:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'

      - name: Install backend dependencies
        run: |
          if [ -f backend/requirements.txt ]; then
            python -m pip install --upgrade pip
            pip install -r backend/requirements.txt
          else
            echo "No backend/requirements.txt found, skipping install"
          fi

      - name: Sanity check - compile Python files
        run: python -m compileall backend

      - name: Run tests if present
        run: |
          if [ -d backend/tests ]; then
            python -m pip install pytest
            pytest -q
          else
            echo "No tests found; skipping pytest"
          fi