# External Dependencies and Includes
# Finds and configures external libraries (WGPU, GLFW, platform libs)

set(CORE_INCLUDES src third_party)

if(DEMO_CROSS_COMPILE_WIN32)
    add_definitions(-DDEMO_CROSS_COMPILE_WIN32)
    set(WINDOWS_DEPS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/windows")
    set(WGPU_INCLUDE_DIR "${WINDOWS_DEPS_DIR}/include")
    set(WGPU_LIBRARY "${WINDOWS_DEPS_DIR}/lib/libwgpu_native.dll.a")
    set(GLFW3_INCLUDE_DIR "${WINDOWS_DEPS_DIR}/include")
    set(GLFW3_LIBRARY "${WINDOWS_DEPS_DIR}/lib/libglfw3.a")

    list(APPEND CORE_INCLUDES ${WGPU_INCLUDE_DIR} ${WGPU_INCLUDE_DIR}/webgpu ${GLFW3_INCLUDE_DIR})
    set(DEMO_LIBS ${GLFW3_LIBRARY} ${WGPU_LIBRARY} -lgdi32 -lws2_32 -luser32 -lkernel32 -lshell32 -ladvapi32 -ldwmapi)
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgcc -static-libstdc++")
else()
    find_library(WGPU_LIBRARY NAMES wgpu_native libwgpu_native REQUIRED)
    find_path(WGPU_ROOT_INCLUDE_DIR NAMES wgpu.h REQUIRED)
    list(APPEND CORE_INCLUDES ${WGPU_ROOT_INCLUDE_DIR} ${WGPU_ROOT_INCLUDE_DIR}/webgpu-headers)
    find_package(glfw3 REQUIRED)
    set(DEMO_LIBS glfw ${WGPU_LIBRARY})
endif()

list(APPEND CORE_INCLUDES third_party/glfw3webgpu)
include_directories(${CORE_INCLUDES})

if(APPLE)
    set_source_files_properties(src/platform/platform.cc third_party/glfw3webgpu/glfw3webgpu.c PROPERTIES COMPILE_FLAGS "-x objective-c++")
    list(APPEND DEMO_LIBS "-framework Metal" "-framework Foundation" "-framework Cocoa" "-framework QuartzCore")
elseif(NOT DEMO_CROSS_COMPILE_WIN32)
    list(APPEND DEMO_LIBS pthread m dl)
endif()