cmake_minimum_required(VERSION 3.14)

set(SRCROOT "${PROJECT_SOURCE_DIR}/test/src")

include(FetchContent)
FetchContent_Declare(Catch2
    GIT_REPOSITORY "https://github.com/catchorg/Catch2.git"
    GIT_TAG v2.13.7)
FetchContent_MakeAvailable(Catch2)

add_library(sfml-test-main STATIC "${SRCROOT}/CatchMain.cpp")
target_include_directories(sfml-test-main PUBLIC "${SRCROOT}/TestUtilities")
target_link_libraries(sfml-test-main PUBLIC Catch2::Catch2)
target_compile_features(sfml-test-main PRIVATE cxx_std_17)

# Work around MinGW struggling to process a file as large as catch.hpp
if(MINGW)
    target_compile_options(sfml-test-main PUBLIC -Wa,-mbig-obj)
endif()

# System is always built
SET(SYSTEM_SRC
    "${SRCROOT}/System/Vector2.cpp"
    "${SRCROOT}/System/Vector3.cpp"
    "${SRCROOT}/TestUtilities/SystemUtil.hpp"
    "${SRCROOT}/TestUtilities/SystemUtil.cpp"
)

sfml_add_test(test-sfml-system "${SYSTEM_SRC}" sfml-system)
target_link_libraries(test-sfml-system PRIVATE sfml-test-main)

if(SFML_BUILD_WINDOW)
    SET(WINDOW_SRC
        "${SRCROOT}/TestUtilities/WindowUtil.hpp"
        "${SRCROOT}/TestUtilities/WindowUtil.cpp"
    )
    sfml_add_test(test-sfml-window "${WINDOW_SRC}" sfml-window)
    target_link_libraries(test-sfml-window PRIVATE sfml-test-main)
endif()

if(SFML_BUILD_GRAPHICS)
    SET(GRAPHICS_SRC
        "${SRCROOT}/Graphics/Rect.cpp"
        "${SRCROOT}/TestUtilities/GraphicsUtil.hpp"
        "${SRCROOT}/TestUtilities/GraphicsUtil.cpp"
    )
    sfml_add_test(test-sfml-graphics "${GRAPHICS_SRC}" sfml-graphics)
    target_link_libraries(test-sfml-graphics PRIVATE sfml-test-main)
endif()

if(SFML_BUILD_NETWORK)
    SET(NETWORK_SRC
        "${SRCROOT}/Network/Packet.cpp"
    )
    sfml_add_test(test-sfml-network "${NETWORK_SRC}" sfml-network)
    target_link_libraries(test-sfml-network PRIVATE sfml-test-main)
endif()

# Automatically run the tests at the end of the build
add_custom_target(runtests ALL
                  DEPENDS test-sfml-system test-sfml-window test-sfml-graphics test-sfml-network
)

add_custom_command(TARGET runtests
                   COMMENT "Run tests"
                   POST_BUILD COMMAND ctest ARGS --output-on-failure
)