name: Unreal Engine Build

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]

jobs:
  windows-build:
    runs-on: windows
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          lfs: true
          fetch-depth: 0
      
      - name: Setup Unreal Engine
        run: |
          # Ensure Unreal Engine is installed and set up
          # This assumes you have Unreal Engine installed on your runner
          # If not, you can add installation steps here
          
          # Set environment variables for Unreal Engine
          echo "UE_ROOT=C:\Program Files\Epic Games\UE_5.2" >> $GITHUB_ENV
          
      - name: Build Unreal Project
        run: |
          # Find your .uproject file (adjust path as needed)
          $UPROJECT_PATH = Get-ChildItem -Path . -Filter "*.uproject" -Recurse | Select-Object -First 1 -ExpandProperty FullName
          Write-Host "Building project: $UPROJECT_PATH"
          
          # Use Unreal Automation Tool to build the project
          & "$env:UE_ROOT\Engine\Build\BatchFiles\RunUAT.bat" BuildCookRun `
            -project="$UPROJECT_PATH" `
            -noP4 `
            -platform=Win64 `
            -clientconfig=Development `
            -cook -build -stage -pak -archive `
            -archivedirectory="$PWD\Build"
      
      - name: Upload build artifacts
        uses: actions/upload-artifact@v3
        with:
          name: windows-build
          path: Build/
          retention-days: 7

  macos-build:
    runs-on: macos
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          lfs: true
          fetch-depth: 0
      
      - name: Setup Unreal Engine
        run: |
          # Set environment variables for Unreal Engine
          echo "UE_ROOT=/Applications/Unreal Engine.app/Contents/MacOS" >> $GITHUB_ENV
          
      - name: Build Unreal Project
        run: |
          # Find your .uproject file (adjust path as needed)
          UPROJECT_PATH=$(find . -name "*.uproject" -type f | head -1)
          echo "Building project: $UPROJECT_PATH"
          
          # Use Unreal Automation Tool to build the project
          "$UE_ROOT/Engine/Build/BatchFiles/RunUAT.sh" BuildCookRun \
            -project="$UPROJECT_PATH" \
            -noP4 \
            -platform=Mac \
            -clientconfig=Development \
            -cook -build -stage -pak -archive \
            -archivedirectory="$PWD/Build"
      
      - name: Upload build artifacts
        uses: actions/upload-artifact@v3
        with:
          name: macos-build
          path: Build/
          retention-days: 7