name: Continuous Integration

on:
  push:
    tags:
      - '*'
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build-linux:
    name: Build on Linux via Docker Compose
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v4
      with:
        submodules: recursive

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3

    - name: Build plugin inside container
      run: docker compose -f docker/docker-compose.yml up --build --abort-on-container-exit

    - name: Upload Linux artifact
      uses: actions/upload-artifact@v4
      with:
        name: RayTrace-linux
        path: build/addons

  build-windows:
    name: Build on Windows (MSVC)
    runs-on: windows-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Prepare SDK directory
        shell: powershell
        run: |
          $SDK = "C:\sdk"
          $HL2SDK = "$SDK\hl2sdk-cs2"
          $MMS = "$SDK\metamod-source"
          $PROTO = "$SDK\Protobufs"

          if (Test-Path $SDK) { Remove-Item $SDK -Recurse -Force }
          New-Item -ItemType Directory -Path $SDK | Out-Null

          Write-Host "=== Downloading HL2SDK-CS2 ==="
          git clone --depth=1 -b cs2 https://github.com/alliedmodders/hl2sdk $HL2SDK

          Write-Host "=== Downloading Metamod-Source ==="
          git clone --depth=1 https://github.com/alliedmodders/metamod-source $MMS

          Write-Host "=== Downloading Protobufs ==="
          git clone --depth=1 https://github.com/SteamDatabase/Protobufs $PROTO

          $HL2SDK_UNIX = $HL2SDK.Replace("\", "/")
          $MMS_UNIX    = $MMS.Replace("\", "/")
          $PROTO_UNIX  = "$($PROTO.Replace('\','/'))/csgo"

          echo "HL2SDKCS2=$HL2SDK_UNIX"  | Out-File -FilePath $env:GITHUB_ENV -Append
          echo "MMSOURCE_DEV=$MMS_UNIX"  | Out-File -FilePath $env:GITHUB_ENV -Append
          echo "CSGO_PROTO=$PROTO_UNIX"  | Out-File -FilePath $env:GITHUB_ENV -Append

          Write-Host "Using HL2SDKCS2=$HL2SDK_UNIX"
          Write-Host "Using MMSOURCE_DEV=$MMS_UNIX"
          Write-Host "Using CSGO_PROTO=$PROTO_UNIX"

      - name: Configure + Build with MSVC
        shell: cmd
        run: |
          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
          cmake -S . -B build -A x64 -DCMAKE_BUILD_TYPE=Release ^
              -DHL2SDKCS2=%HL2SDKCS2% -DMMSOURCE_DEV=%MMSOURCE_DEV% -DCSGO_PROTO=%CSGO_PROTO%
          cmake --build build --config Release --target RayTracePlugin

      - name: Strip symbols (Windows)
        run: |
          llvm-strip build/Release/RayTrace.dll

      - name: Copy addons structure
        run: |
          mkdir -p build/addons/RayTrace/bin/win64
          copy build/Release/RayTrace.dll build/addons/RayTrace/bin/win64/

      - name: Upload Windows artifact
        uses: actions/upload-artifact@v4
        with:
          name: RayTrace-wwindows
          path: build/addons

  release:
    name: Release
    if: startsWith(github.ref, 'refs/tags/')
    needs: [build-linux, build-windows]
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
    - name: Download Linux artifact
      uses: actions/download-artifact@v4
      with:
        name: RayTrace-linux
        path: ./build/linux

    - name: Download Windows artifact
      uses: actions/download-artifact@v4
      with:
        name: RayTrace-windows
        path: ./build/windows

    - name: Archive packages
      run: |
        version="${GITHUB_REF#refs/tags/}"
        tar -czf RayTrace-${version}-linux.tar.gz -C build/linux .
        tar -czf RayTrace-${version}-windows.tar.gz -C build/windows .

    - name: Upload release archive
      uses: svenstaro/upload-release-action@v2
      with:
        repo_token: ${{ secrets.GITHUB_TOKEN }}
        file: RayTrace-*.tar.gz
        tag: ${{ github.ref }}
        file_glob: true
        release_name: "${{ github.ref_name }} - Download"