cmake_minimum_required(VERSION 3.16.0 FATAL_ERROR)

set(CMAKE_SYSTEM_VERSION 10.0 CACHE STRING "" FORCE)

project(asyncwinhttpwebsockets CXX)

################################################################################
# Set target arch type if empty. Visual studio solution generator provides it.
################################################################################
if(NOT CMAKE_VS_PLATFORM_NAME)
    set(CMAKE_VS_PLATFORM_NAME "x64")
endif()
message("${CMAKE_VS_PLATFORM_NAME} architecture in use")



################################################################################
# Global configuration types
################################################################################
set(CMAKE_CONFIGURATION_TYPES
    "Release"
    CACHE STRING "" FORCE
)

################################################################################
# Global compiler options
################################################################################
if(MSVC)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc") 
    set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /EHsc") 
    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /EHsc") 
endif()

################################################################################
# Global linker options
################################################################################
if(MSVC)
    # remove default flags provided with CMake for MSVC
    set(CMAKE_EXE_LINKER_FLAGS "")
    set(CMAKE_MODULE_LINKER_FLAGS "")
    set(CMAKE_SHARED_LINKER_FLAGS "")
    set(CMAKE_STATIC_LINKER_FLAGS "")
    set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS}")
    set(CMAKE_MODULE_LINKER_FLAGS_DEBUG "${CMAKE_MODULE_LINKER_FLAGS}")
    set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS}")
    set(CMAKE_STATIC_LINKER_FLAGS_DEBUG "${CMAKE_STATIC_LINKER_FLAGS}")
    set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS}")
    set(CMAKE_MODULE_LINKER_FLAGS_RELEASE "${CMAKE_MODULE_LINKER_FLAGS}")
    set(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS}")
    set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "${CMAKE_STATIC_LINKER_FLAGS}")
endif()

################################################################################
# Nuget packages function stub.
################################################################################
function(use_package TARGET PACKAGE VERSION)
    message(WARNING "No implementation of use_package. Create yours. "
                    "Package \"${PACKAGE}\" with version \"${VERSION}\" "
                    "for target \"${TARGET}\" is ignored!")
endfunction()

################################################################################
# Use solution folders feature
################################################################################
set_property(GLOBAL PROPERTY USE_FOLDERS ON)

################################################################################
# Sub-projects
################################################################################

set(PROJECT_NAME asyncwinhttpwebsockets)

################################################################################
# Source groups
################################################################################
set(Header_Files
    "asyncwebsocketclient.h"
    "framework.h"
    "pch.h"
)
source_group("Header Files" FILES ${Header_Files})

set(Source_Files
    "asyncwebsocketclient.cpp"
    "dllmain.cpp"
    "pch.cpp"
    "Source.def"
)
source_group("Source Files" FILES ${Source_Files})

set(ALL_FILES
    ${Header_Files}
    ${Source_Files}
)

################################################################################
# Target
################################################################################
add_library(${PROJECT_NAME} SHARED ${ALL_FILES})

target_precompile_headers(${PROJECT_NAME} PRIVATE
    "$<$<COMPILE_LANGUAGE:CXX>:${CMAKE_CURRENT_SOURCE_DIR}/pch.h>"
)

set(ROOT_NAMESPACE asyncwebsocketclient)

set_target_properties(${PROJECT_NAME} PROPERTIES
    VS_GLOBAL_KEYWORD "Win32Proj"
)
################################################################################
# Target name
################################################################################
if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
    set_target_properties(${PROJECT_NAME} PROPERTIES
        TARGET_NAME_RELEASE "asyncwinhttpwebsockets"
    )
elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
    set_target_properties(${PROJECT_NAME} PROPERTIES
        TARGET_NAME_RELEASE "asyncwinhttpwebsockets"
    )
endif()
################################################################################
# Output directory (configurable)
################################################################################
if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
    set(OUTPUT_DIRECTORY_X64_RELEASE
        "The path to your terminal directory"
        CACHE PATH "Output directory for x64 Release build"
    )
    set_target_properties(${PROJECT_NAME} PROPERTIES
        OUTPUT_DIRECTORY_RELEASE "${OUTPUT_DIRECTORY_X64_RELEASE}"
    )
elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
    set(OUTPUT_DIRECTORY_X86_RELEASE
        "The path to your terminal directory"
        CACHE PATH "Output directory for x64 Release build"
    )
    set_target_properties(${PROJECT_NAME} PROPERTIES
        OUTPUT_DIRECTORY_RELEASE "${OUTPUT_DIRECTORY_X86_RELEASE}"
    )
endif()
if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
    set_target_properties(${PROJECT_NAME} PROPERTIES
        INTERPROCEDURAL_OPTIMIZATION_RELEASE "TRUE"
    )
elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
    set_target_properties(${PROJECT_NAME} PROPERTIES
        INTERPROCEDURAL_OPTIMIZATION_RELEASE "TRUE"
    )
endif()
################################################################################
# Compile definitions
################################################################################
if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
    target_compile_definitions(${PROJECT_NAME} PRIVATE
        "$<$<CONFIG:Release>:"
            "NDEBUG"
        ">"
        "ASYNCWEBSOCKETCLIENT_EXPORTS;"
        "_WINDOWS;"
        "_USRDLL;"
        "UNICODE;"
        "_UNICODE"
    )
elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
    target_compile_definitions(${PROJECT_NAME} PRIVATE
        "$<$<CONFIG:Release>:"
            "NDEBUG"
        ">"
        "WIN32;"
        "ASYNCWEBSOCKETCLIENT_EXPORTS;"
        "_WINDOWS;"
        "_USRDLL;"
        "UNICODE;"
        "_UNICODE"
    )
endif()

################################################################################
# Compile and link options
################################################################################
if(MSVC)
    if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
        target_compile_options(${PROJECT_NAME} PRIVATE
            $<$<CONFIG:Release>:
                /Oi;
                /Gy
            >
            /permissive-;
            /sdl;
            /W3;
            ${DEFAULT_CXX_DEBUG_INFORMATION_FORMAT};
            ${DEFAULT_CXX_EXCEPTION_HANDLING}
        )
    elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
        target_compile_options(${PROJECT_NAME} PRIVATE
            $<$<CONFIG:Release>:
                /Oi;
                /Gy
            >
            /permissive-;
            /sdl;
            /W3;
            ${DEFAULT_CXX_DEBUG_INFORMATION_FORMAT};
            ${DEFAULT_CXX_EXCEPTION_HANDLING}
        )
    endif()
    if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
        target_link_options(${PROJECT_NAME} PRIVATE
            $<$<CONFIG:Release>:
                /OPT:REF;
                /OPT:ICF
            >
            /DEBUG;
            /SUBSYSTEM:WINDOWS
        )
    elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
        target_link_options(${PROJECT_NAME} PRIVATE
            $<$<CONFIG:Release>:
                /OPT:REF;
                /OPT:ICF
            >
            /DEBUG;
            /SUBSYSTEM:WINDOWS
        )
    endif()
endif()

################################################################################
# Dependencies (configurable)
################################################################################

set(WINHTTP_LIB "winhttp.lib")

if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
    set(PATH_SEPARATOR "\\")
else()
    set(PATH_SEPARATOR "/")
endif()

if("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "x64")
    set(ADDITIONAL_LIBRARY_DEPENDENCIES
        "Path to containing folder for winhttp.lib" 
        CACHE PATH "Additional library dependencies for x64"
    )
	set(ADDITIONAL_LIBRARY_DEPENDENCIES_X64 "${ADDITIONAL_LIBRARY_DEPENDENCIES}${PATH_SEPARATOR}${WINHTTP_LIB}")
	if(NOT EXISTS "${ADDITIONAL_LIBRARY_DEPENDENCIES_X64}")
	   message(FATAL_ERROR "WinHTTP library file ${ADDITIONAL_LIBRARY_DEPENDENCIES_X64} not found!")
	endif()
    target_link_libraries(${PROJECT_NAME} PUBLIC ${ADDITIONAL_LIBRARY_DEPENDENCIES_X64})
elseif("${CMAKE_VS_PLATFORM_NAME}" STREQUAL "Win32")
    set(ADDITIONAL_LIBRARY_DEPENDENCIES
        "Path to containing folder for winhttp.lib" 
        CACHE PATH "Additional library dependencies for x86"
    )
	set(ADDITIONAL_LIBRARY_DEPENDENCIES_X86 "${ADDITIONAL_LIBRARY_DEPENDENCIES}${PATH_SEPARATOR}${WINHTTP_LIB}")
	if(NOT EXISTS "${ADDITIONAL_LIBRARY_DEPENDENCIES_X86}")
	   message(FATAL_ERROR "WinHTTP library file ${ADDITIONAL_LIBRARY_DEPENDENCIES_X86} not found!")
	endif()
    target_link_libraries(${PROJECT_NAME} PUBLIC ${ADDITIONAL_LIBRARY_DEPENDENCIES_X86})
endif()