# Edit on github: https://github.com/LizardByte/Sunshine/blob/master/packaging/linux/Arch/PKGBUILD
# Reference: https://wiki.archlinux.org/title/PKGBUILD

## options
: "${_run_unit_tests:=false}"  # if set to true; unit tests will be executed post build; useful in CI
: "${_support_headless_testing:=false}"
: "${_use_cuda:=detect}" # nvenc

: "${_commit:=@GITHUB_COMMIT@}"

pkgname='sunshine'
pkgver=@PROJECT_VERSION@@SUNSHINE_SUB_VERSION@
pkgrel=1
pkgdesc="@PROJECT_DESCRIPTION@"
arch=('x86_64' 'aarch64')
url=@PROJECT_HOMEPAGE_URL@
license=('GPL-3.0-only')
install=sunshine.install

# this variable remains for future cases where we need an older version of gcc for cuda compatibility
_gcc_version=15
_versioned_gcc=false  # set to true if we need a versioned gcc, e.g. gcc14

_gcc_dep_suffix=""
_gcc_env_suffix=""
if [ "${_versioned_gcc}" == true ]; then
  _gcc_dep_suffix="${_gcc_version}"
  _gcc_env_suffix="-${_gcc_version}"
fi

depends=(
  'avahi'
  'curl'
  'gtk3'
  'hicolor-icon-theme'
  'libayatana-appindicator'
  'libcap'
  'libdrm'
  'libevdev'
  'libmfx'
  'libnotify'
  'libpipewire'
  'libpulse'
  'libva'
  'libx11'
  'libxcb'
  'libxfixes'
  'libxrandr'
  'libxtst'
  'miniupnpc'
  'numactl'
  'openssl'
  'opus'
  'qt6-base'
  'qt6-svg'
  'udev'
  'vulkan-icd-loader'
  'which'
)

makedepends=(
  'appstream'
  'appstream-glib'
  'cmake'
  'desktop-file-utils'
  "gcc${_gcc_dep_suffix}"
  'git'
  'make'
  'nodejs'
  'npm'
  'python-jinja'  # required by the glad OpenGL/EGL loader generator
  'shaderc'
)

checkdepends=(
  'gcovr'
)

optdepends=(
  'libva-mesa-driver: AMD GPU encoding support'
)

provides=()
conflicts=()

source=("$pkgname::git+@GITHUB_CLONE_URL@#commit=${_commit}")
sha256sums=('SKIP')

# Options Handling
if [[ "${_use_cuda::1}" == "d" ]] && pacman -Qi cuda &> /dev/null; then
  _use_cuda=true
fi

if [[ "${_use_cuda::1}" == "t" ]]; then
  optdepends+=(
    'cuda: Nvidia GPU encoding support'
  )
fi

if [[ "${_support_headless_testing::1}" == "t" ]]; then
  optdepends+=(
    'xorg-server-xvfb: Virtual X server for headless testing'
  )
fi

# Ensure makedepends, checkdepends, optdepends are sorted
if [ -n "${makedepends+x}" ]; then
  mapfile -t tmp_array < <(printf '%s\n' "${makedepends[@]}" | sort)
  makedepends=("${tmp_array[@]}")
  unset tmp_array
fi

if [ -n "${optdepends+x}" ]; then
  mapfile -t tmp_array < <(printf '%s\n' "${optdepends[@]}" | sort)
  optdepends=("${tmp_array[@]}")
  unset tmp_array
fi

prepare() {
    cd "$pkgname"
    git submodule update --recursive --init --depth 1
}

build() {
    export BRANCH="@GITHUB_BRANCH@"
    export BUILD_VERSION="@BUILD_VERSION@"
    export COMMIT="${_commit}"

    export CC="gcc${_gcc_env_suffix}"
    export CXX="g++${_gcc_env_suffix}"

    export CFLAGS="${CFLAGS/-Werror=format-security/}"
    export CXXFLAGS="${CXXFLAGS/-Werror=format-security/}"

    export MAKEFLAGS="${MAKEFLAGS:--j$(nproc)}"

    local _cmake_options=(
      -S "$pkgname"
      -B build
      -Wno-dev
      -D BUILD_DOCS=OFF
      -D BUILD_WERROR=ON
      -D CMAKE_INSTALL_PREFIX=/usr
      -D SUNSHINE_EXECUTABLE_PATH=/usr/bin/sunshine
      -D SUNSHINE_ASSETS_DIR="share/sunshine"
      -D SUNSHINE_PUBLISHER_NAME='LizardByte'
      -D SUNSHINE_PUBLISHER_WEBSITE='https://app.lizardbyte.dev'
      -D SUNSHINE_PUBLISHER_ISSUE_URL='https://app.lizardbyte.dev/support'
    )

    if [[ "${_use_cuda::1}" != "t" ]]; then
      _cmake_options+=(-DSUNSHINE_ENABLE_CUDA=OFF -DCUDA_FAIL_ON_MISSING=OFF)
    else
      # If cuda has just been installed, its variables will not be available in the environment
      # therefore, set them manually to the expected values on Arch Linux
      if [ -z "${CUDA_PATH:-}" ] && pacman -Qi cuda &> /dev/null; then
        local _cuda_gcc_version
        _cuda_gcc_version="$(LC_ALL=C pacman -Si cuda | grep -Pom1 '^Depends On\s*:.*\bgcc\K[0-9]+\b' || true)"

        export CUDA_PATH=/opt/cuda
        if [ -n "$_cuda_gcc_version" ]; then
          export NVCC_CCBIN="/usr/bin/g++-${_cuda_gcc_version}"
        else
          export NVCC_CCBIN="/usr/bin/g++"
        fi
      fi
    fi

    if [[ "${_run_unit_tests::1}" != "t" ]]; then
      _cmake_options+=(-DBUILD_TESTS=OFF)
    fi

    if [[ -z "${GITHUB_ACTIONS}" ]]; then
	    _appstreamcli_arguments=(--no-net)
    fi

    cmake "${_cmake_options[@]}"

    appstreamcli validate "${_appstreamcli_arguments[@]}" "build/dev.lizardbyte.app.Sunshine.metainfo.xml"
    appstream-util validate "build/dev.lizardbyte.app.Sunshine.metainfo.xml"
    desktop-file-validate "build/dev.lizardbyte.app.Sunshine.desktop"
    desktop-file-validate "build/dev.lizardbyte.app.Sunshine.terminal.desktop"

    cmake --build build
}

check() {
    if [[ "${_run_unit_tests::1}" == "t" ]]; then
      export CC="gcc${_gcc_env_suffix}"
      export CXX="g++${_gcc_env_suffix}"

      cd "${srcdir}/build/tests"
      ./test_sunshine --gtest_color=yes --gtest_output=xml:test_results.xml

      # Generate coverage report
      # Run gcovr from the build directory (where all .gcda/.gcno files are)
      # This matches the pattern used in ci-linux.yml
      cd "${srcdir}/build"

      # Dynamically find the gcov executable from the selected compiler.
      # This ensures we use the same gcov version that produced the .gcno files.
      local gcov_path
      local gcc_lib_dir

      gcc_lib_dir="$("$CC" -print-libgcc-file-name)"
      gcc_lib_dir="${gcc_lib_dir%/*}"
      gcov_path="${gcc_lib_dir}/gcov"

      if [ ! -x "$gcov_path" ]; then
        gcov_path="$("$CC" -print-prog-name=gcov)"
      fi

      if [ -n "$gcov_path" ] && command -v "$gcov_path" > /dev/null 2>&1; then
        gcov_path="$(command -v "$gcov_path")"
      else
        gcov_path="$(command -v "gcov${_gcc_env_suffix}" || command -v gcov || true)"
      fi

      if [ -z "$gcov_path" ]; then
        echo "Unable to find gcov for ${CC}" >&2
        return 1
      fi

      echo "Using gcov at: $gcov_path"

      # Use the actual relative path to the source directory
      # From ${srcdir}/build, the source is at ../${pkgname}/src
      gcovr --gcov-executable "$gcov_path" . -r "../${pkgname}/src" \
        --exclude-noncode-lines \
        --exclude-throw-branches \
        --exclude-unreachable-branches \
        --verbose \
        --xml-pretty \
        -o coverage.xml

      # Post-process the coverage XML to strip the absolute path and show only 'src'
      sed -i "s|${srcdir}/${pkgname}/src|src|g" coverage.xml
    fi

    cd "${srcdir}/build"
    ./sunshine --version
}

package() {
    export MAKEFLAGS="${MAKEFLAGS:--j$(nproc)}"
    DESTDIR="$pkgdir" cmake --install build
}