name: CI

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

# Only maintainers can trigger CI (via PR approval or manual re-run).
# Fork PRs require maintainer approval before workflows run.
permissions:
  contents: read

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

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

      - name: Install ruff
        run: pip install ruff

      - name: Ruff check
        run: ruff check .

      - name: Ruff format check
        run: ruff format --check .

  test:
    name: Test (Python ${{ matrix.python-version }})
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13"]
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: pip install -e ".[dev]"

      - name: Run tests with coverage
        run: python -m pytest tests/ -v --cov=src --cov-report=xml --cov-report=term

      - name: Upload coverage
        if: matrix.python-version == '3.12'
        uses: codecov/codecov-action@v4
        with:
          file: coverage.xml
          fail_ci_if_error: false

      - name: Type check
        run: python -m mypy src/ --ignore-missing-imports