name: CI

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

jobs:
  engine:
    name: Engine (Linux, CPU)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Build glm
        run: cd c && make glm
      - name: C test suite
        run: cd c && make test-c

  engine-cuda-syntax:
    name: CUDA syntax check
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install CUDA toolkit (compiler only)
        uses: Jimver/cuda-toolkit@v0.2.19
        with:
          # v0.2.19's version table stops at 12.6.2 — 12.6.3 fails the install
          # step with "Version not available" before nvcc is ever reached.
          cuda: '12.6.2'
          method: network
          sub-packages: '["nvcc"]'
      - name: Compile backend_cuda.cu (syntax only, no GPU)
        run: |
          cd c
          # NOT `nvcc ... | head -40`: a pipeline exits with the status of its
          # LAST command, so head's 0 masked every nvcc error and the job could
          # only ever be green. A check that cannot fail is worse than no check —
          # it buys false confidence in the one file nothing else compiles.
          nvcc -O2 -std=c++17 -arch=sm_80 -c backend_cuda.cu -o /dev/null \
            -Xcompiler=-Wall,-Wextra
          echo "CUDA syntax check passed"

  web:
    name: Web UI
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: web
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: '22'
          cache: npm
          cache-dependency-path: web/package-lock.json
      - run: npm ci
      - name: Build
        run: npm run build
      - name: Test
        run: npx vitest run

  python:
    name: Python tests
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: '3.12'
      - name: Python test suite
        run: cd c && python3 -m unittest discover -s tests -p 'test_*.py'