name: CI

on:
  push:
    branches: [main]
  pull_request:

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.10", "3.11", "3.12"]
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0  # full history: DEBUG.md's commit citations are tested
      - uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      # CPU-only torch, and none of the kernel extras. This job IS the Phase 0
      # acceptance criterion: the library must install and pass on a machine
      # with no CUDA and no optional dependencies.
      - name: Install
        run: |
          python -m pip install --upgrade pip
          pip install torch --index-url https://download.pytorch.org/whl/cpu
          pip install -e ".[dev]"
      - name: Lint
        run: ruff check . && ruff format --check .
      # Advisory, not gating (see PLAN.md Phase 0) — but it has to actually run,
      # or errors accumulate silently until someone thinks to check.
      - name: Typecheck
        run: mypy
        continue-on-error: true
      - name: Test
        run: pytest -v --cov --cov-report=term-missing

  viewer:
    # The viewer is JS and builds once; the python job must not wait on node.
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "22"
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Build the bundle
        run: |
          npm --prefix viewer ci
          npm --prefix viewer run build
          python viewer/install_bundle.py
      # The viz tests skip themselves without a bundle, which is right for a
      # checkout and wrong for this job: here a skip would mean the whole
      # feature went untested and said "ok".
      - name: Serve it
        run: |
          pip install torch --index-url https://download.pytorch.org/whl/cpu
          pip install -e ".[dev]"
          pytest tests/test_viz.py -v
          python - <<'EOF'
          from torch_dimensions import viz
          assert viz.bundle_exists(), "bundle missing after build — the viz tests all skipped"
          EOF