name: Build

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

env:
  WOWEE_AMD_FSR2_REPO: https://github.com/GPUOpen-Effects/FidelityFX-FSR2.git
  WOWEE_AMD_FSR2_REF: master
  WOWEE_FFX_SDK_REPO: https://github.com/Kelsidavis/FidelityFX-SDK.git
  WOWEE_FFX_SDK_REF: main

jobs:
  build:
    name: Build (${{ matrix.arch }})
    runs-on: ${{ matrix.runner }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - arch: x86-64
            runner: ubuntu-24.04
            deb_arch: amd64
          - arch: arm64
            runner: ubuntu-24.04-arm
            deb_arch: arm64

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

      - name: Cache apt packages
        uses: actions/cache@v4
        with:
          path: /var/cache/apt/archives/*.deb
          key: apt-${{ matrix.arch }}-${{ hashFiles('.github/workflows/build.yml') }}
          restore-keys: apt-${{ matrix.arch }}-

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            cmake \
            build-essential \
            pkg-config \
            libsdl2-dev \
            libglew-dev \
            libglm-dev \
            libssl-dev \
            zlib1g-dev \
            libvulkan-dev \
            vulkan-tools \
            glslc \
            libavformat-dev \
            libavcodec-dev \
            libswscale-dev \
            libavutil-dev \
            libunicorn-dev \
            libx11-dev
          sudo apt-get install -y libstorm-dev || true

      - name: Fetch AMD FSR2 SDK
        run: |
          rm -rf extern/FidelityFX-FSR2
          git clone --depth 1 --branch "${WOWEE_AMD_FSR2_REF}" "${WOWEE_AMD_FSR2_REPO}" extern/FidelityFX-FSR2
          rm -rf extern/FidelityFX-SDK
          git clone --depth 1 --branch "${WOWEE_FFX_SDK_REF}" "${WOWEE_FFX_SDK_REPO}" extern/FidelityFX-SDK

      - name: Check AMD FSR2 Vulkan permutation headers
        run: |
          set -euo pipefail
          SDK_DIR="$PWD/extern/FidelityFX-FSR2"
          OUT_DIR="$SDK_DIR/src/ffx-fsr2-api/vk/shaders"
          if [ -f "$OUT_DIR/ffx_fsr2_accumulate_pass_permutations.h" ]; then
            echo "AMD FSR2 Vulkan permutation headers detected."
          else
            echo "AMD FSR2 Vulkan permutation headers not found in SDK checkout."
            echo "WoWee CMake will bootstrap vendored headers."
          fi

      - name: Check FidelityFX-SDK Vulkan framegen files
        run: |
          set -euo pipefail
          SDK_DIR="$PWD/extern/FidelityFX-SDK/sdk"
          test -f "$SDK_DIR/include/FidelityFX/host/ffx_frameinterpolation.h"
          if [ -f "$SDK_DIR/include/FidelityFX/gpu/frameinterpolation/ffx_frameinterpolation_callbacks_glsl.h" ] \
             && [ -f "$SDK_DIR/include/FidelityFX/gpu/opticalflow/ffx_opticalflow_callbacks_glsl.h" ] \
             && [ -f "$SDK_DIR/src/backends/vk/CMakeShadersFrameinterpolation.txt" ] \
             && [ -f "$SDK_DIR/src/backends/vk/CMakeShadersOpticalflow.txt" ]; then
            echo "FidelityFX-SDK Vulkan framegen files detected."
          else
            echo "FidelityFX-SDK Vulkan framegen files are missing in this checkout; build continues."
          fi

      - name: Configure (AMD ON)
        run: cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DWOWEE_ENABLE_AMD_FSR2=ON

      - name: Assert AMD FSR2 target
        run: cmake --build build --target wowee_fsr2_amd_vk --parallel $(nproc)

      - name: Assert AMD FSR3 framegen probe target
        run: cmake --build build --target wowee_fsr3_framegen_amd_vk_probe --parallel $(nproc)

      - name: Build
        run: cmake --build build --parallel $(nproc)

      - name: Package (DEB)
        run: cd build && cpack -G DEB

      - name: Upload DEB
        uses: actions/upload-artifact@v4
        with:
          name: wowee-linux-${{ matrix.arch }}-deb
          path: build/wowee-*.deb
          if-no-files-found: error

  build-macos:
    name: Build (macOS ${{ matrix.arch }})
    runs-on: ${{ matrix.runner }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - arch: arm64
            runner: macos-15

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

      - name: Install dependencies
        run: |
          brew install cmake pkg-config sdl2 glew glm openssl@3 zlib ffmpeg unicorn \
            stormlib vulkan-loader vulkan-headers shaderc dylibbundler || true
          # dylibbundler may not be in all brew mirrors; install separately to not block others
          brew install dylibbundler 2>/dev/null || true

      - name: Fetch AMD FSR2 SDK
        run: |
          rm -rf extern/FidelityFX-FSR2
          git clone --depth 1 --branch "${WOWEE_AMD_FSR2_REF}" "${WOWEE_AMD_FSR2_REPO}" extern/FidelityFX-FSR2
          rm -rf extern/FidelityFX-SDK
          git clone --depth 1 --branch "${WOWEE_FFX_SDK_REF}" "${WOWEE_FFX_SDK_REPO}" extern/FidelityFX-SDK

      - name: Configure
        run: |
          BREW=$(brew --prefix)
          export PKG_CONFIG_PATH="$BREW/lib/pkgconfig:$(brew --prefix ffmpeg)/lib/pkgconfig:$(brew --prefix openssl@3)/lib/pkgconfig:$(brew --prefix vulkan-loader)/lib/pkgconfig:$(brew --prefix shaderc)/lib/pkgconfig"
          cmake -S . -B build \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_PREFIX_PATH="$BREW" \
            -DOPENSSL_ROOT_DIR="$(brew --prefix openssl@3)" \
            -DWOWEE_ENABLE_AMD_FSR2=ON

      - name: Assert AMD FSR2 target
        run: cmake --build build --target wowee_fsr2_amd_vk --parallel $(sysctl -n hw.logicalcpu)

      - name: Assert AMD FSR3 framegen probe target
        run: cmake --build build --target wowee_fsr3_framegen_amd_vk_probe --parallel $(sysctl -n hw.logicalcpu)

      - name: Build
        run: cmake --build build --parallel $(sysctl -n hw.logicalcpu)

      - name: Create .app bundle
        run: |
          mkdir -p Wowee.app/Contents/{MacOS,Frameworks,Resources}

          # Wrapper launch script — cd to MacOS/ so ./assets/ resolves correctly
          printf '#!/bin/bash\ncd "$(dirname "$0")"\nexec ./wowee_bin "$@"\n' \
            > Wowee.app/Contents/MacOS/wowee
          chmod +x Wowee.app/Contents/MacOS/wowee

          # Actual binary
          cp build/bin/wowee Wowee.app/Contents/MacOS/wowee_bin

          # Assets (exclude proprietary music)
          rsync -a --exclude='Original Music' build/bin/assets/ \
            Wowee.app/Contents/MacOS/assets/

          # Bundle dylibs (if dylibbundler available)
          if command -v dylibbundler &>/dev/null; then
            dylibbundler -od -b \
              -x Wowee.app/Contents/MacOS/wowee_bin \
              -d Wowee.app/Contents/Frameworks/ \
              -p @executable_path/../Frameworks/
          fi

          # Info.plist
          cat > Wowee.app/Contents/Info.plist << 'EOF'
          <?xml version="1.0" encoding="UTF-8"?>
          <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
            "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
          <plist version="1.0"><dict>
            <key>CFBundleExecutable</key><string>wowee</string>
            <key>CFBundleIdentifier</key><string>com.wowee.app</string>
            <key>CFBundleName</key><string>Wowee</string>
            <key>CFBundleVersion</key><string>1.0.0</string>
            <key>CFBundleShortVersionString</key><string>1.0.0</string>
            <key>CFBundlePackageType</key><string>APPL</string>
          </dict></plist>
          EOF

          # Ad-hoc codesign (allows running on the local machine)
          codesign --force --deep --sign - Wowee.app

      - name: Create DMG
        run: hdiutil create -volname Wowee -srcfolder Wowee.app -ov -format UDZO Wowee.dmg

      - name: Upload DMG
        uses: actions/upload-artifact@v4
        with:
          name: wowee-macos-${{ matrix.arch }}-dmg
          path: Wowee.dmg
          if-no-files-found: error

  build-windows-arm:
    name: Build (windows-arm64)
    runs-on: windows-11-arm
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Set up MSYS2
        uses: msys2/setup-msys2@v2
        with:
          msystem: CLANGARM64
          update: true
          install: >-
            mingw-w64-clang-aarch64-cmake
            mingw-w64-clang-aarch64-clang
            mingw-w64-clang-aarch64-ninja
            mingw-w64-clang-aarch64-pkgconf
            mingw-w64-clang-aarch64-SDL2
            mingw-w64-clang-aarch64-glew
            mingw-w64-clang-aarch64-glm
            mingw-w64-clang-aarch64-openssl
            mingw-w64-clang-aarch64-zlib
            mingw-w64-clang-aarch64-ffmpeg
            mingw-w64-clang-aarch64-unicorn
            mingw-w64-clang-aarch64-vulkan-loader
            mingw-w64-clang-aarch64-vulkan-headers
            mingw-w64-clang-aarch64-shaderc
            git

      - name: Build StormLib from source
        shell: msys2 {0}
        run: |
          git clone --depth 1 https://github.com/ladislav-zezula/StormLib.git /tmp/StormLib
          # Disable x86 inline asm in bundled libtomcrypt (bswapl/movl) —
          # __MINGW32__ is defined on CLANGARM64 which incorrectly enables x86 asm
          cmake -S /tmp/StormLib -B /tmp/StormLib/build -G Ninja \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_INSTALL_PREFIX="$MINGW_PREFIX" \
            -DBUILD_SHARED_LIBS=OFF \
            -DCMAKE_C_FLAGS="-DLTC_NO_BSWAP" \
            -DCMAKE_CXX_FLAGS="-DLTC_NO_BSWAP"
          cmake --build /tmp/StormLib/build --parallel $(nproc)
          cmake --install /tmp/StormLib/build

      - name: Fetch AMD FSR2 SDK
        shell: msys2 {0}
        run: |
          rm -rf extern/FidelityFX-FSR2
          git clone --depth 1 --branch "${WOWEE_AMD_FSR2_REF}" "${WOWEE_AMD_FSR2_REPO}" extern/FidelityFX-FSR2
          rm -rf extern/FidelityFX-SDK
          git clone --depth 1 --branch "${WOWEE_FFX_SDK_REF}" "${WOWEE_FFX_SDK_REPO}" extern/FidelityFX-SDK

      - name: Configure
        shell: msys2 {0}
        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DWOWEE_ENABLE_AMD_FSR2=ON

      - name: Assert AMD FSR2 target
        shell: msys2 {0}
        run: cmake --build build --target wowee_fsr2_amd_vk --parallel $(nproc)

      - name: Assert AMD FSR3 framegen probe target
        shell: msys2 {0}
        run: cmake --build build --target wowee_fsr3_framegen_amd_vk_probe --parallel $(nproc)

      - name: Build
        shell: msys2 {0}
        run: cmake --build build --parallel $(nproc)

      - name: Bundle DLLs
        shell: msys2 {0}
        run: |
          ldd build/bin/wowee.exe \
            | awk '/=> \// { print $3 }' \
            | grep -iv '^/c/Windows' \
            | xargs -I{} sh -c 'cp -n "{}" build/bin/ 2>/dev/null || true'

      - name: Package (ZIP)
        shell: msys2 {0}
        run: cd build && cpack -G ZIP

      - name: Upload ZIP
        uses: actions/upload-artifact@v4
        with:
          name: wowee-windows-arm64-zip
          path: build/wowee-*.zip
          if-no-files-found: error

  build-windows:
    name: Build (windows-x86-64)
    runs-on: windows-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Set up MSYS2
        uses: msys2/setup-msys2@v2
        with:
          msystem: MINGW64
          update: false
          install: >-
            mingw-w64-x86_64-cmake
            mingw-w64-x86_64-gcc
            mingw-w64-x86_64-ninja
            mingw-w64-x86_64-pkgconf
            mingw-w64-x86_64-SDL2
            mingw-w64-x86_64-glew
            mingw-w64-x86_64-glm
            mingw-w64-x86_64-openssl
            mingw-w64-x86_64-zlib
            mingw-w64-x86_64-ffmpeg
            mingw-w64-x86_64-unicorn
            mingw-w64-x86_64-vulkan-loader
            mingw-w64-x86_64-vulkan-headers
            mingw-w64-x86_64-shaderc
            mingw-w64-x86_64-nsis
            git

      - name: Build StormLib from source
        shell: msys2 {0}
        run: |
          git clone --depth 1 https://github.com/ladislav-zezula/StormLib.git /tmp/StormLib
          cmake -S /tmp/StormLib -B /tmp/StormLib/build -G Ninja \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_INSTALL_PREFIX="$MINGW_PREFIX" \
            -DBUILD_SHARED_LIBS=OFF
          cmake --build /tmp/StormLib/build --parallel $(nproc)
          cmake --install /tmp/StormLib/build

      - name: Fetch AMD FSR2 SDK
        shell: msys2 {0}
        run: |
          rm -rf extern/FidelityFX-FSR2
          git clone --depth 1 --branch "${WOWEE_AMD_FSR2_REF}" "${WOWEE_AMD_FSR2_REPO}" extern/FidelityFX-FSR2
          rm -rf extern/FidelityFX-SDK
          git clone --depth 1 --branch "${WOWEE_FFX_SDK_REF}" "${WOWEE_FFX_SDK_REPO}" extern/FidelityFX-SDK

      - name: Configure
        shell: msys2 {0}
        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DWOWEE_ENABLE_AMD_FSR2=ON

      - name: Assert AMD FSR2 target
        shell: msys2 {0}
        run: cmake --build build --target wowee_fsr2_amd_vk --parallel $(nproc)

      - name: Assert AMD FSR3 framegen probe target
        shell: msys2 {0}
        run: cmake --build build --target wowee_fsr3_framegen_amd_vk_probe --parallel $(nproc)

      - name: Build
        shell: msys2 {0}
        run: cmake --build build --parallel $(nproc)

      - name: Bundle DLLs
        shell: msys2 {0}
        run: |
          ldd build/bin/wowee.exe \
            | awk '/=> \// { print $3 }' \
            | grep -iv '^/c/Windows' \
            | xargs -I{} sh -c 'cp -n "{}" build/bin/ 2>/dev/null || true'

      - name: Package (NSIS)
        shell: msys2 {0}
        run: cd build && cpack -G NSIS

      - name: Upload installer
        uses: actions/upload-artifact@v4
        with:
          name: wowee-windows-x86-64-installer
          path: build/wowee-*.exe
          if-no-files-found: error