cmake_minimum_required(VERSION 3.15)

project(OpenGL_Integration)

set(ENGINE_ROOT_DIR ${CMAKE_SOURCE_DIR}/engine)

find_package(Python3 REQUIRED)

enable_testing()

set(PACKAGE_DIR ${CMAKE_SOURCE_DIR}/tests/OpenGL/package)

add_executable(OpenGL_Minimal
    WIN32
    minimal/main.cpp
    ${PACKAGE_DIR}/src/glad.c
)

target_include_directories(OpenGL_Minimal PRIVATE
    ${CMAKE_CURRENT_SOURCE_DIR}/minimal
    ${ENGINE_ROOT_DIR}/include
    ${PACKAGE_DIR}/include
)

target_link_libraries(OpenGL_Minimal PRIVATE
    opengl32
    XCEngine
)

target_compile_definitions(OpenGL_Minimal PRIVATE
    UNICODE
    _UNICODE
)

add_custom_command(TARGET OpenGL_Minimal POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
        ${CMAKE_CURRENT_SOURCE_DIR}/run_integration_test.py
        $<TARGET_FILE_DIR:OpenGL_Minimal>/
    COMMAND ${CMAKE_COMMAND} -E copy_if_different
        ${CMAKE_CURRENT_SOURCE_DIR}/compare_ppm.py
        $<TARGET_FILE_DIR:OpenGL_Minimal>/
)

add_test(NAME OpenGL_Minimal_Integration
    COMMAND ${Python3_EXECUTABLE} $<TARGET_FILE_DIR:OpenGL_Minimal>/run_integration_test.py
        $<TARGET_FILE:OpenGL_Minimal>
        minimal.ppm
        ${CMAKE_CURRENT_SOURCE_DIR}/minimal/GT.ppm
        5
    WORKING_DIRECTORY $<TARGET_FILE_DIR:OpenGL_Minimal>
)