ci.yml

name: CI

# The Unity project itself cannot be built here - that needs the 2020.1.5f1
# editor and a licensed runner. What CI *can* prove, on an ordinary runner, is
# that the engine-free half of the game still compiles and behaves, and that the
# project's structure has not rotted. See CLAUDE.md for why that split exists.

on:
  push:
    branches: [master]
  pull_request:
  workflow_dispatch:

jobs:
  tests:
    name: Simulation tests (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest]

    steps:
      - uses: actions/checkout@v4

      - name: Set up .NET
        uses: actions/setup-dotnet@v4
        with:
          # global.json pins 8.0.100 with rollForward: latestFeature, so the
          # runner's 8.0.x patch is accepted but a major bump is not.
          dotnet-version: '8.0.x'

      - name: Report the toolchain actually in use
        run: dotnet --info

      - name: Restore
        run: dotnet restore NetworkSimSandbox.sln

      # TreatWarningsAsErrors is on for the whole solution. Because NetworkSimSandbox.Sim
      # *links* Assets/Scripts rather than copying it, this step also fails if
      # the game sources drift past the C# 8 that Unity 2020.1 accepts.
      - name: Build (warnings are errors)
        run: dotnet build NetworkSimSandbox.sln --no-restore --configuration Release

      - name: Test
        run: dotnet test NetworkSimSandbox.sln --no-build --configuration Release --logger "console;verbosity=normal"

  structure:
    name: Project structure
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

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

      # No pip install: the checker is stdlib-only on purpose, so it runs
      # anywhere the repo is checked out.
      - name: Check .meta pairing, GUIDs, build scenes and asset hygiene
        run: python tools/check_project.py --verbose