name: Build Windows DLL

on:
  push:
    branches: [main]
  workflow_dispatch:

jobs:
  build-windows:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4

      - name: Set up Visual Studio environment
        uses: ilammy/msvc-dev-cmd@v1
        with:
          arch: x64

      - name: Download OBS Studio source
        run: |
          Invoke-WebRequest -Uri "https://github.com/obsproject/obs-studio/archive/refs/tags/31.1.0.zip" -OutFile obs-studio.zip
          Expand-Archive -Path obs-studio.zip -DestinationPath C:\
          Rename-Item "C:\obs-studio-31.1.0" "C:\obs-studio"

      - name: Download OBS pre-built dependencies
        run: |
          Invoke-WebRequest -Uri "https://github.com/obsproject/obs-deps/releases/download/2025-05-23/windows-x64-2025-05-23.tar.gz" -OutFile obs-deps.tar.gz
          mkdir C:\obs-deps
          tar -xzf obs-deps.tar.gz -C C:\obs-deps

      - name: Download Qt6
        run: |
          Invoke-WebRequest -Uri "https://github.com/obsproject/obs-deps/releases/download/2025-05-23/windows-x64-qt6-2025-05-23.tar.gz" -OutFile qt6.tar.gz
          mkdir C:\qt6
          tar -xzf qt6.tar.gz -C C:\qt6

      - name: Build OBS Studio libraries
        run: |
          cd C:\obs-studio
          cmake -S . -B build_x64 `
            -G "Visual Studio 17 2022" -A x64 `
            -DENABLE_PLUGINS=OFF `
            -DENABLE_UI=OFF `
            -DENABLE_SCRIPTING=OFF `
            -DCMAKE_BUILD_TYPE=Release
          cmake --build build_x64 --config Release --target libobs -- /m
          cmake --build build_x64 --config Release --target obs-frontend-api -- /m

      - name: Build plugin
        run: |
          cd ${{ github.workspace }}
          cmake -S . -B build `
            -G "Visual Studio 17 2022" -A x64 `
            -DBUILD_OUT_OF_TREE=On `
            -Dlibobs_DIR="C:/obs-studio/build_x64/libobs" `
            -Dobs-frontend-api_DIR="C:/obs-studio/build_x64/UI/obs-frontend-api" `
            -DCMAKE_PREFIX_PATH="C:/obs-deps;C:/qt6" `
            -DQt6_DIR="C:/qt6/lib/cmake/Qt6"
          cmake --build build --config Release -- /m

      - name: Upload DLL
        uses: actions/upload-artifact@v4
        with:
          name: vulcast-vertical-windows-x64
          path: build/Release/vulcast-vertical.dll