name: Macos Compile

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

jobs:
  build:
    runs-on: macOS-latest
    strategy:
      matrix:
        config: [Release, Debug]
        standalone: [OFF, ON]
        toolchain: [macos-clang, macos-gnu] # remove temporary macos-clang-llvm
        isPR:
          - ${{ github.event_name == 'pull_request' }}
        exclude:
          - isPR: true
            standalone: OFF
    steps:
      - uses: actions/checkout@v4
      - name: Install dependencies
        run: |
          # Base tools plus the libultraship/Fast3D deps the interactive viewer
          # (BUILD_UI) needs: SDL2, GLEW, libzip and nlohmann-json. The mac
          # backend is Metal (metal-cpp is fetched), so no Vulkan is required.
          brew install cmake ninja xcodes sdl2 glew libzip nlohmann-json
      - name: Download llvm
        if: ${{ matrix.toolchain == 'macos-clang-llvm' }}
        run: |
          brew install llvm lld
          echo "/opt/homebrew/opt/llvm/bin" >> $GITHUB_PATH
      - name: Download gnu
        if: ${{ matrix.toolchain == 'macos-gnu' }}
        run: |
          brew install gcc
          echo "/opt/homebrew/opt/gcc/bin" >> $GITHUB_PATH
      - name: Build
        run: |
          # Enable the viewer in CI (BUILD_UI is off by default), except on the gcc
          # toolchain: the Metal backend needs clang/Objective-C++.
          cmake -H. -Bbuild-cmake -GNinja -DCMAKE_BUILD_TYPE=${{ matrix.config }} -DUSE_STANDALONE=${{ matrix.standalone }} -DBUILD_UI=${{ matrix.toolchain == 'macos-gnu' && 'OFF' || 'ON' }} -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain/${{ matrix.toolchain }}.cmake
          cmake --build build-cmake -j
      - name: Create Package
        if: ${{ matrix.config == 'Release' && matrix.standalone == 'ON' && matrix.toolchain == 'macos-clang' }}
        run: |
          mkdir torch-release
          mv build-cmake/torch torch-release/
      - name: Publish packaged artifacts
        if: ${{ matrix.config == 'Release' && matrix.standalone == 'ON' && matrix.toolchain == 'macos-clang' }}
        uses: actions/upload-artifact@v4
        with:
            name: torch-mac-bin
            path: torch-release