name: 🪲 Godot CPP
on:
  workflow_call:

# Global Settings
env:
  # Used for the cache key. Add version suffix to force clean build.
  GODOT_BASE_BRANCH: master
  # Used for the godot-cpp checkout.
  GODOT_CPP_BRANCH: 4.3

concurrency:
  group: ci-${{ github.actor }}-${{ github.head_ref || github.run_number }}-${{ github.ref }}-cpp-tests
  cancel-in-progress: true

jobs:
  godot-cpp-tests:
    runs-on: ubuntu-20.04
    name: Build and test Godot CPP
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Setup Python and SCons
        uses: ./.github/actions/godot-deps

      # Checkout godot-cpp
      - name: Checkout godot-cpp
        uses: actions/checkout@v4
        with:
          repository: godotengine/godot-cpp
          ref: ${{ env.GODOT_CPP_BRANCH }}
          submodules: recursive
          path: godot-cpp

      # Download generated API dump
      - name: Download GDExtension interface and API dump
        uses: ./.github/actions/download-artifact
        with:
          name: godot-api-dump
          path: ./godot-api

      # Extract and override existing files with generated files
      - name: Extract GDExtension interface and API dump
        run: |
          cp -f godot-api/gdextension_interface.h godot-cpp/gdextension/
          cp -f godot-api/extension_api.json godot-cpp/gdextension/

      # TODO: Add caching to the SCons build and store it for CI via the godot-cache
      # action.

      # Build godot-cpp test extension
      - name: Build godot-cpp test extension
        run: |
          cd godot-cpp/test
          scons target=template_debug dev_build=yes
          cd ../..

  gdextension-c-compile:
    runs-on: 'ubuntu-20.04'
    name: 'Check GDExtension header with a C compiler'
    steps:
      - uses: actions/checkout@v4

      - name: 'Run C compiler on gdextension_interface.h'
        run: |
          gcc -c core/extension/gdextension_interface.h