cmake_minimum_required(VERSION 3.13)

project(vulkanik)
add_executable(${PROJECT_NAME}
    "main.cpp"
    "app.hpp"
    "app.cpp"
)
#    "basicApp.cpp" "basicApp.hpp"
#    "debug.cpp" "debug.hpp")

target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_20)

set(CMAKE_CXX_STANDARD 20)

find_package(Vulkan REQUIRED)

target_link_libraries(${PROJECT_NAME} glfw Vulkan::Vulkan)

#find_package( Threads )
#target_link_libraries(${PROJECT_NAME} ${CMAKE_THREAD_LIBS_INIT} )

file(COPY resources DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
#file(MAKE_DIRECTORY shaders)

#TODO compile shaders
#https://gist.github.com/vlsh/a0d191701cb48f157b05be7f74d79396
set(GLSL_VALIDATOR "glslangValidator")

file(GLOB_RECURSE GLSL_SOURCE_FILES
    "shaders_src/*.frag"
    "shaders_src/*.vert"
    )

foreach(GLSL ${GLSL_SOURCE_FILES})
  get_filename_component(FILE_NAME ${GLSL} NAME)
  set(SPIRV "${PROJECT_BINARY_DIR}/shaders/${FILE_NAME}.spv")
  add_custom_command(
    OUTPUT ${SPIRV}
    COMMAND ${CMAKE_COMMAND} -E make_directory "${PROJECT_BINARY_DIR}/shaders/"
    COMMAND ${GLSL_VALIDATOR} -V ${GLSL} -o ${SPIRV}
    DEPENDS ${GLSL})
  list(APPEND SPIRV_BINARY_FILES ${SPIRV})
endforeach(GLSL)

add_custom_target(
    Shaders
    DEPENDS ${SPIRV_BINARY_FILES}
    )

add_dependencies(${PROJECT_NAME} Shaders)



#file(COPY shaders DESTINATION ${CMAKE_CURRENT_BINARY_DIR})


add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E make_directory "$<TARGET_FILE_DIR:${PROJECT_NAME}>/shaders/"
    COMMAND ${CMAKE_COMMAND} -E copy_directory
        "${PROJECT_BINARY_DIR}/shaders"
        "$<TARGET_FILE_DIR:${PROJECT_NAME}>/shaders"
        )

target_sources(${PROJECT_NAME} PUBLIC ${GLSL_SOURCE_FILES})

#${GLFW_LIBRARIES}

#link_libraries(${PROJECT_NAME} libsfml-graphics)
#find_package(SFML 2.5 COMPONENTS graphics audio REQUIRED)
#target_link_libraries(${PROJECT_NAME} sfml-graphics sfml-audio)

#find_package( Threads )
#target_link_libraries(${PROJECT_NAME} ${CMAKE_THREAD_LIBS_INIT} )

#file(COPY resources DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
#system network graphics window audio
#target_include_directories(${PROJECT_NAME} PRIVATE .)


if(FALSE) # fake a block comment
    include_directories(
	    external/AntTweakBar-1.16/include/
	    external/glfw-3.1.2/include/
	    external/glm-0.9.7.1/
	    external/glew-1.13.0/include/
	    external/assimp-3.0.1270/include/
	    external/bullet-2.81-rev2613/src/
	    .
    )

    add_definitions(
	    -DTW_STATIC
	    -DTW_NO_LIB_PRAGMA
	    -DTW_NO_DIRECT3D
	    -DGLEW_STATIC
	    -D_CRT_SECURE_NO_WARNINGS
    )
endif()