name: backend

on:
  push:
    branches: [main]
    paths:
      - "backend/**"
      - ".github/workflows/backend.yml"
  pull_request:
    paths:
      - "backend/**"

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Install
        working-directory: backend
        run: pip install -e .[dev]
      - name: Smoke tests
        working-directory: backend
        run: pytest -q
      - name: Lint
        working-directory: backend
        run: ruff check src tests

  build-and-push:
    needs: test
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    steps:
      - uses: actions/checkout@v4
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/setup-buildx-action@v3
      - uses: docker/build-push-action@v6
        with:
          context: ./backend
          push: true
          tags: |
            ghcr.io/${{ github.repository_owner }}/mist-backend:latest
            ghcr.io/${{ github.repository_owner }}/mist-backend:${{ github.sha }}