set -x

sys_name_=`uname -s`
if [ "Linux" == "$sys_name_" ]; then
  SYS_NAME=${SYS_NAME:=-sys_name_}
  sys_name=$SYS_NAME
else
  sys_name=$sys_name_
fi

if [ -d "vulkan" ]; then
  exit 0
fi

mkdir vulkan
pushd vulkan

UNAME_S=`uname -s`
UNAME_M=`uname -m`
EXT=${UNAME_S}-${UNAME_M}

mkdir -p ../sdk/include

if [ "Android" == "$sys_name" ]; then

  git clone --branch v1.3.275 https://github.com/KhronosGroup/Vulkan-Headers

  pushd ../sdk/include
    ln -s /opt/android-sdk/ndk/latest/sources/third_party/vulkan/src/include/vulkan vulkan-h
    ln -s ../../vulkan/Vulkan-Headers/include/vulkan vulkan-hpp
    mkdir vulkan
    pushd vulkan
      ln -s ../vulkan-h/*.h .
      ln -s ../vulkan-hpp/*.hpp .
    popd
  popd

else
  pushd ../sdk/include

    ln -fs ../../vulkan/MoltenVK/Package/Release/MoltenVK/include/vulkan

  popd

  mkdir -p ../sdk/lib
  pushd ../sdk/lib

    for X in Debug.iOS-simulate Release.iOS-simulate
    do
      mkdir -p $X
      pushd $X
        ln -fs ../../../vulkan/MoltenVK/Package/Release/MoltenVK/static/MoltenVK.xcframework/ios-arm64_x86_64-simulator/libMoltenVK.a
      popd
    done

    for X in Debug.iOS-arm64 Release.iOS-arm64
    do
      mkdir -p $X
      pushd $X
        ln -fs ../../../vulkan/MoltenVK/Package/Release/MoltenVK/static/MoltenVK.xcframework/ios-arm64/libMoltenVK.a
      popd
    done

    for X in Debug.$EXT Release.$EXT
    do
      mkdir -p $X
      pushd $X
        ln -fs ../../../vulkan/MoltenVK/Package/Release/MoltenVK/static/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a
      popd
    done

  popd

  VERSION=v1.2.9

  #no work
  git clone --depth 1 --branch $VERSION https://github.com/KhronosGroup/MoltenVK.git

  pushd MoltenVK

    #./fetchDependencies --all
    ./fetchDependencies --macos --ios --iossim

    # for some reason this causes a terminate, why? dunno
    # make all
    make macos
    make ios
    make iossim

    pushd Package/Release/MoltenVK/include/vulkan
        ln -s ../vk_video
    popd

  popd

fi

popd