name: CI

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

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: 22

      # glslangValidator is Khronos' reference GLSL compiler. The shader tests compile
      # the game's real shaders with it; without it they skip, so install it explicitly.
      - name: Install GLSL compiler
        run: sudo apt-get update && sudo apt-get install -y glslang-tools

      - run: npm ci

      - name: Unit tests (shaders, terrain)
        run: npm test

      - name: Build
        run: npm run build

      - name: Basic syntax lint
        run: npm run lint:syntax

  # Needs a Chrome/Chromium binary and CPU-rendered WebGL (SwiftShader). Not every
  # runner has one, so this reports without blocking the pipeline.
  render:
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: 22

      - name: Install Chromium
        run: sudo apt-get update && sudo apt-get install -y chromium

      - run: npm ci

      - name: Build
        run: npm run build

      - name: Headless render check
        run: CHROME=$(command -v chromium || command -v chromium-browser) npm run test:render