name: CI

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:

jobs:
  build-frontend:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          cache: npm

      - name: Install deps
        run: npm ci

      - name: Build
        run: npm run build

      - name: Validate lobby server syntax
        run: node --check server/lobby.js