option(NBL_LLVM_ENABLE_ASSERTIONS "LLVM_ENABLE_ASSERTIONS" ON)

list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_ENABLE_ASSERTIONS:BOOL=${NBL_LLVM_ENABLE_ASSERTIONS}")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_OPTIONAL_PROJS_IN_DEFAULT:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_ENABLE_ANALYZE:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_OFFICIAL_BUILD:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_ENABLE_FIXED_VER:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_FIXED_VERSION_LOCATION:STRING=")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_BUILD_DXILCONV:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_VENDOR:STRING=")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DENABLE_SPIRV_CODEGEN:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_BUILD_TESTS:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_ENABLE_ARCMT:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_ENABLE_STATIC_ANALYZER:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_INCLUDE_TESTS:BOOL=Off")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_INCLUDE_TESTS:BOOL=Off")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_INCLUDE_TESTS:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_INCLUDE_UTILS:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_TARGETS_TO_BUILD:STRING=None")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_INCLUDE_DOCS:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_INCLUDE_TESTS:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_INCLUDE_EXAMPLES:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLIBCLANG_BUILD_STATIC:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_OPTIMIZED_TABLEGEN:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_REQUIRES_EH:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_APPEND_VC_REV:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_ENABLE_RTTI:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_ENABLE_EH:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_DEFAULT_TARGET_TRIPLE:STING=dxil-ms-dx")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_BUILD_EXAMPLES:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_REQUIRES_RTTI:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCLANG_CL:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DLLVM_ENABLE_WERROR:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_WERROR:BOOL=OFF")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DDXC_BUILD_ARCH:STRING=x64")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_HEADERS_SKIP_INSTALL:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_HEADERS_SKIP_EXAMPLES:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSKIP_SPIRV_TOOLS_INSTALL:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_SKIP_TESTS:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DSPIRV_SKIP_EXECUTABLES:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_ENABLE_DEBUG_ITERATORS:BOOL=ON")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DDXC_SPIRV_TOOLS_DIR=${DXC_SPIRV_TOOLS_DIR}")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DDXC_SPIRV_HEADERS_DIR=${DXC_SPIRV_HEADERS_DIR}")
list(APPEND NBL_DXC_CMAKE_OPTIONS "-DDXC_ENABLE_ETW=OFF")

if(NOT NBL_IS_MULTI_CONFIG)
	list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}")
endif()

#if(NBL_FORCE_RELEASE_3RDPARTY) # priority over RWDI
#	NBL_EXT_P_APPEND_COMPILE_OPTIONS(NBL_DXC_CMAKE_OPTIONS Release Release Release)
#elseif(NBL_FORCE_RELWITHDEBINFO_3RDPARTY)
#	NBL_EXT_P_APPEND_COMPILE_OPTIONS(NBL_DXC_CMAKE_OPTIONS RelWithDebInfo RelWithDebInfo RelWithDebInfo)
#else()
#	NBL_EXT_P_APPEND_COMPILE_OPTIONS(NBL_DXC_CMAKE_OPTIONS Release RelWithDebInfo Debug)
#endif()
#list(TRANSFORM NBL_DXC_CMAKE_OPTIONS REPLACE "/fp:fast" "/fp:precise")

if(WIN32)
	if(NOT DEFINED HLSL_AUTOCRLF)
		list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_AUTOCRLF:BOOL=ON")
	else()
		list(APPEND NBL_DXC_CMAKE_OPTIONS "-DHLSL_AUTOCRLF:BOOL=${HLSL_AUTOCRLF}")
	endif()
endif()

list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCMAKE_MSVC_RUNTIME_LIBRARY:STATIC=MultiThreaded$<$<CONFIG:Debug>:Debug>$<$<BOOL:${NBL_COMPILER_DYNAMIC_RUNTIME}>:DLL>")

# perform DXC compile standard requirement test
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# TODO: Don't they support a higher standard now, like 17 ?
set(CMAKE_CXX_STANDARD 11) # compiler must support exactly c++11 or c++14 standard in order to be able to build DXC libraries

try_compile(DXC_COMPILE_TEST_PASSED
	SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/test/test.cpp"
	OUTPUT_VARIABLE DXC_COMPILE_RET_VAL
	CXX_STANDARD ${CMAKE_CXX_STANDARD}
	CXX_STANDARD_REQUIRED ON
)

if(DXC_COMPILE_TEST_PASSED)
	set(DXC_COMPILE_TEST_DONE ON CACHE BOOL "")
else()
	message(FATAL_ERROR "${DXC_COMPILE_RET_VAL}")
endif()

set(DXC_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/build" CACHE INTERNAL "")

if(NOT CMAKE_GENERATOR MATCHES "Ninja*")
    list(APPEND NBL_DXC_CMAKE_OPTIONS -Ax64)
endif()

if(CMAKE_GENERATOR_TOOLSET)
	list(APPEND NBL_DXC_CMAKE_OPTIONS -T "${CMAKE_GENERATOR_TOOLSET}")
endif()

if(CMAKE_TOOLCHAIN_FILE)
	list(APPEND NBL_DXC_CMAKE_OPTIONS "-DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}")
endif()

execute_process(COMMAND "${CMAKE_COMMAND}" -C "${CMAKE_CURRENT_SOURCE_DIR}/dxc/cmake/caches/PredefinedParams.cmake" -S "${CMAKE_CURRENT_SOURCE_DIR}/dxc" -B "${DXC_BUILD_DIR}" -G "${CMAKE_GENERATOR}" ${NBL_DXC_CMAKE_OPTIONS}
	RESULT_VARIABLE DXC_CMAKE_RESULT
	OUTPUT_VARIABLE DXC_CMAKE_STREAM_PIPE
)

if(NOT "${DXC_CMAKE_RESULT}" STREQUAL "0")
	message(FATAL_ERROR "${DXC_CMAKE_STREAM_PIPE}")
endif()

set(CMAKE_CXX_STANDARD 20) # it's mandatory
unset(CMAKE_CXX_STANDARD_REQUIRED)

if(NBL_IS_MULTI_CONFIG)
	include("${DXC_BUILD_DIR}/nbl/generate/dxc/config/debug.cmake")
	include("${DXC_BUILD_DIR}/nbl/generate/dxc/config/release.cmake")
else()
	if(CMAKE_BUILD_TYPE STREQUAL "Debug")
		include("${DXC_BUILD_DIR}/nbl/generate/dxc/config/debug.cmake")
	else()
		include("${DXC_BUILD_DIR}/nbl/generate/dxc/config/release.cmake")
	endif()
endif()

set(DXC_INCLUDE_DIRECTORIES
	$<IF:$<CONFIG:Debug>,${NBL_DXC_DEBUG_INCLUDE_DIRECTORIES},${NBL_DXC_RELEASE_INCLUDE_DIRECTORIES}>
CACHE INTERNAL "" FORCE)

set(DXC_LIB
	$<IF:$<CONFIG:Debug>,${NBL_DXC_DEBUG_LIB},${NBL_DXC_RELEASE_LIB}>
CACHE INTERNAL "" FORCE)

set(DXC_DLL 
	$<IF:$<CONFIG:Debug>,${NBL_DXC_DEBUG_DLL},${NBL_DXC_RELEASE_DLL}>
CACHE INTERNAL "" FORCE)

if(NBL_IS_MULTI_CONFIG)
	cmake_path(GET NBL_DXC_DEBUG_DLL FILENAME _NBL_DXC_DEBUG_DLL_NAME_)
	cmake_path(GET NBL_DXC_RELEASE_DLL FILENAME _NBL_DXC_RELEASE_DLL_NAME_)
else()
	if(CMAKE_BUILD_TYPE STREQUAL "Debug")
		cmake_path(GET NBL_DXC_DEBUG_DLL FILENAME _NBL_DXC_DEBUG_DLL_NAME_)
	else()
		cmake_path(GET NBL_DXC_RELEASE_DLL FILENAME _NBL_DXC_RELEASE_DLL_NAME_)
	endif()
endif()

set(DXC_DLL_NAME 
	$<IF:$<CONFIG:Debug>,${_NBL_DXC_DEBUG_DLL_NAME_},${_NBL_DXC_RELEASE_DLL_NAME_}>
CACHE INTERNAL "" FORCE)

set(DXC_COMPILE_FLAGS_RELEASE "")
set(DXC_COMPILE_FLAGS_RWDI "")
set(DXC_COMPILE_FLAGS_DEBUG "")

set(DXC_COMPILE_FLAGS
	$<$<CONFIG:Release>:${DXC_COMPILE_FLAGS_RELEASE}>$<$<CONFIG:Debug>:${DXC_COMPILE_FLAGS_DEBUG}>$<$<CONFIG:RelWithDebInfo>:${DXC_COMPILE_FLAGS_RWDI}>
CACHE INTERNAL "" FORCE)

get_filename_component(_SPIRV_BR_BUNDLE_SEARCH_DIRECTORY_ "${DXC_SPIRV_HEADERS_DIR}/include" ABSOLUTE)
get_filename_component(_SPIRV_BR_OUTPUT_DIRECTORY_SOURCE_ "${CMAKE_CURRENT_BINARY_DIR}/src" ABSOLUTE)
get_filename_component(_SPIRV_BR_OUTPUT_DIRECTORY_HEADER_ "${CMAKE_CURRENT_BINARY_DIR}/include" ABSOLUTE)
set(SPIRV_BUILTIN_RESOURCES_DIRECTORY_PATH "${_SPIRV_BR_BUNDLE_SEARCH_DIRECTORY_}/spirv" CACHE INTERNAL "" FORCE)

if(NBL_EMBED_BUILTIN_RESOURCES)
	include("${NBL_ROOT_PATH}/src/nbl/builtin/utils.cmake")

    # SPIRV Header in builtin resources, nbl paths as aliases
    LIST_BUILTIN_RESOURCE(SPIRV_RESOURCES_TO_EMBED "unified1/spirv.h")
    LIST_BUILTIN_RESOURCE(SPIRV_RESOURCES_TO_EMBED "unified1/spirv.hpp")
    LIST_BUILTIN_RESOURCE(SPIRV_RESOURCES_TO_EMBED "unified1/GLSL.std.450.h")

    ADD_CUSTOM_BUILTIN_RESOURCES(spirvBuiltinResourceData SPIRV_RESOURCES_TO_EMBED "${_SPIRV_BR_BUNDLE_SEARCH_DIRECTORY_}" "spirv" "spirv::builtin" "${_SPIRV_BR_OUTPUT_DIRECTORY_HEADER_}" "${_SPIRV_BR_OUTPUT_DIRECTORY_SOURCE_}" "STATIC" "INTERNAL")
endif()