name: CMake on multiple platforms

on:
  push:
    tags: 
      - "v*"
  workflow_dispatch:

jobs:
  build:
    runs-on: ${{ matrix.os }}

    strategy:
      fail-fast: false
      matrix:
        include:
          - os: windows-latest
            c_compiler: cl
            cpp_compiler: cl
            platform: Windows
            artifact_name: windows
            build_type: Release

          - os: ubuntu-latest
            c_compiler: gcc
            cpp_compiler: g++
            platform: Linux
            artifact_name: linux
            build_type: Release

          - os: macos-latest
            c_compiler: clang
            cpp_compiler: clang++
            platform: MacOS
            artifact_name: macos
            build_type: Release

          - os: ubuntu-latest
            c_compiler: emcc
            cpp_compiler: em++
            platform: Web
            artifact_name: web
            build_type: Release

    steps:
    - uses: actions/checkout@v4

    - name: Set reusable strings
      id: strings
      shell: bash
      run: |
        echo "build-output-dir=${{ github.workspace }}/build" >> "$GITHUB_OUTPUT"

    - name: Install Linux Dependencies
      if: runner.os == 'Linux'
      run: |
        sudo apt-get update
        sudo apt-get install -y libasound2-dev mesa-common-dev libx11-dev libxrandr-dev libxi-dev xorg-dev libgl1-mesa-dev libglu1-mesa-dev vim-common

    - name: Install MacOS Dependencies
      if: runner.os == 'macOS'
      run: |
        brew install cmake
        xcode-select --install || true  # Install Command Line Tools (includes xxd)

    - name: Install Windows Dependencies
      if: runner.os == 'Windows'
      run: |
        # Download xxd for Windows
        curl -L -o xxd.exe https://github.com/easyaspi314/xxd-standalone/releases/download/v1.0.0/xxd.exe
        # Add the current directory to PATH so xxd can be found
        echo "${{ github.workspace }}" >> $GITHUB_PATH
      shell: bash

    - name: Cache CMake files
      uses: actions/cache@v3
      with:
        path: |
          ~/.cmake
          ${{ github.workspace }}/build/_deps
        key: ${{ runner.os }}-cmake-${{ matrix.c_compiler }}-${{ hashFiles('**/CMakeLists.txt', '**/*.cmake') }}
        restore-keys: |
          ${{ runner.os }}-cmake-${{ matrix.c_compiler }}-
          ${{ runner.os }}-cmake-

    - name: Cache emsdk
      if: matrix.c_compiler == 'emcc'
      uses: actions/cache@v3
      with:
        path: |
          emsdk-cache
        key: ${{ runner.os }}-emsdk-${{ hashFiles('.github/workflows/**') }}
        restore-keys: |
          ${{ runner.os }}-emsdk-

    - name: Setup Emscripten
      if: matrix.c_compiler == 'emcc'
      uses: mymindstorm/setup-emsdk@v12
      with:
        actions-cache-folder: emsdk-cache
        version: 3.1.45

    - name: Setup Web Build Environment
      if: matrix.c_compiler == 'emcc'
      run: |
        mkdir -p ${{ steps.strings.outputs.build-output-dir }}/assets
        # cp -r assets/* ${{ steps.strings.outputs.build-output-dir }}/assets/

    - name: Configure CMake
      run: >
        cmake -B ${{ steps.strings.outputs.build-output-dir }}
        -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
        -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
        ${{ matrix.c_compiler == 'emcc' && '-DPLATFORM=Web -DCMAKE_EXE_LINKER_FLAGS="-s USE_GLFW=3 -s ASYNCIFY -s TOTAL_MEMORY=67108864 -s FORCE_FILESYSTEM=1 --preload-file assets --shell-file ../src/shell.html"' || '' }}
        -S ${{ github.workspace }}

    - name: Build
      run: cmake --build ${{ steps.strings.outputs.build-output-dir }} --config ${{ matrix.build_type }}

    - name: Test
      working-directory: ${{ steps.strings.outputs.build-output-dir }}
      run: ctest --build-config ${{ matrix.build_type }}

    - name: Create Release ZIP
      run: |
        cd ${{ steps.strings.outputs.build-output-dir }}
        if [ "${{ matrix.platform }}" = "Web" ]; then
          zip -r ../${{ matrix.artifact_name }}.zip *.html *.js *.data
        elif [ "${{ matrix.platform }}" = "Windows" ]; then
          cd ${{ matrix.build_type }}
          zip -r ../../${{ matrix.artifact_name }}.zip *.exe
        else
          zip -r ../${{ matrix.artifact_name }}.zip * -x "*.cmake" "*.txt" "*.json" "*.a" "*.o" "*.d" "*.make" "*.internal" "*.marks" "Makefile" ".ninja*" "*.ninja" "CMakeFiles/*"
        fi
      shell: bash

    - name: Upload Release Asset
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ github.event.release.upload_url }}
        asset_path: ${{ matrix.artifact_name }}.zip
        asset_name: ${{ matrix.artifact_name }}.zip
        asset_content_type: application/zip