include(FetchContent)

add_subdirectory(install)
set_target_warnings(test-sfml-install)

set(CATCH_CONFIG_FAST_COMPILE ON CACHE BOOL "")
set(CATCH_CONFIG_NO_EXPERIMENTAL_STATIC_ANALYSIS_SUPPORT ON CACHE BOOL "")
FetchContent_Declare(Catch2
    GIT_REPOSITORY https://github.com/catchorg/Catch2.git
    GIT_TAG v3.5.4
    GIT_SHALLOW ON)
FetchContent_MakeAvailable(Catch2)
include(Catch)

# Build Catch2 in C++17 mode to enable C++17 features
target_compile_features(Catch2 PRIVATE cxx_std_17)

# Ensure that Catch2 sources and headers are not analyzed by any tools
set_target_properties(Catch2 PROPERTIES COMPILE_OPTIONS "" EXPORT_COMPILE_COMMANDS OFF)
set_target_properties(Catch2WithMain PROPERTIES EXPORT_COMPILE_COMMANDS OFF)
get_target_property(CATCH2_INCLUDE_DIRS Catch2 INTERFACE_INCLUDE_DIRECTORIES)
target_include_directories(Catch2 SYSTEM INTERFACE ${CATCH2_INCLUDE_DIRS})

add_library(sfml-test-main STATIC
    TestUtilities/SystemUtil.hpp
    TestUtilities/SystemUtil.cpp
    TestUtilities/WindowUtil.hpp
    TestUtilities/WindowUtil.cpp
    TestUtilities/GraphicsUtil.hpp
    TestUtilities/GraphicsUtil.cpp
)
target_include_directories(sfml-test-main PUBLIC TestUtilities)
target_link_libraries(sfml-test-main PUBLIC SFML::System Catch2::Catch2WithMain)
set_target_warnings(sfml-test-main)

# set the target flags to use the appropriate C++ standard library
sfml_set_stdlib(Catch2)
sfml_set_stdlib(Catch2WithMain)
sfml_set_stdlib(sfml-test-main)

sfml_set_option(SFML_RUN_DISPLAY_TESTS ON BOOL "TRUE to run tests that require a display, FALSE to ignore it")
if(SFML_RUN_DISPLAY_TESTS)
    target_compile_definitions(sfml-test-main PRIVATE SFML_RUN_DISPLAY_TESTS)
endif()

set(SYSTEM_SRC
    System/Angle.test.cpp
    System/Clock.test.cpp
    System/Config.test.cpp
    System/Err.test.cpp
    System/FileInputStream.test.cpp
    System/MemoryInputStream.test.cpp
    System/Sleep.test.cpp
    System/String.test.cpp
    System/Time.test.cpp
    System/Vector2.test.cpp
    System/Vector3.test.cpp
)
sfml_add_test(test-sfml-system "${SYSTEM_SRC}" "")
target_compile_definitions(test-sfml-system PRIVATE
    EXPECTED_SFML_VERSION_MAJOR=${SFML_VERSION_MAJOR}
    EXPECTED_SFML_VERSION_MINOR=${SFML_VERSION_MINOR}
    EXPECTED_SFML_VERSION_PATCH=${SFML_VERSION_PATCH}
    EXPECTED_SFML_VERSION_IS_RELEASE=$<IF:$<BOOL:${VERSION_IS_RELEASE}>,true,false>
)

set(WINDOW_SRC
    Window/Clipboard.test.cpp
    Window/Context.test.cpp
    Window/ContextSettings.test.cpp
    Window/Cursor.test.cpp
    Window/Event.test.cpp
    Window/GlResource.test.cpp
    Window/Joystick.test.cpp
    Window/Keyboard.test.cpp
    Window/VideoMode.test.cpp
    Window/Vulkan.test.cpp
    Window/Window.test.cpp
    Window/WindowBase.test.cpp
)
sfml_add_test(test-sfml-window "${WINDOW_SRC}" SFML::Window)

set(GRAPHICS_SRC
    Graphics/BlendMode.test.cpp
    Graphics/CircleShape.test.cpp
    Graphics/Color.test.cpp
    Graphics/ConvexShape.test.cpp
    Graphics/CoordinateType.test.cpp
    Graphics/Drawable.test.cpp
    Graphics/Font.test.cpp
    Graphics/Glsl.test.cpp
    Graphics/Glyph.test.cpp
    Graphics/Image.test.cpp
    Graphics/Rect.test.cpp
    Graphics/RectangleShape.test.cpp
    Graphics/Render.test.cpp
    Graphics/RenderStates.test.cpp
    Graphics/RenderTarget.test.cpp
    Graphics/RenderTexture.test.cpp
    Graphics/RenderWindow.test.cpp
    Graphics/Shader.test.cpp
    Graphics/Shape.test.cpp
    Graphics/Sprite.test.cpp
    Graphics/StencilMode.test.cpp
    Graphics/Text.test.cpp
    Graphics/Texture.test.cpp
    Graphics/Transform.test.cpp
    Graphics/Transformable.test.cpp
    Graphics/Vertex.test.cpp
    Graphics/VertexArray.test.cpp
    Graphics/VertexBuffer.test.cpp
    Graphics/View.test.cpp
)
sfml_add_test(test-sfml-graphics "${GRAPHICS_SRC}" SFML::Graphics)
if(SFML_RUN_DISPLAY_TESTS)
    target_compile_definitions(test-sfml-graphics PRIVATE SFML_RUN_DISPLAY_TESTS)
endif()

set(NETWORK_SRC
    Network/Ftp.test.cpp
    Network/Http.test.cpp
    Network/IpAddress.test.cpp
    Network/Packet.test.cpp
    Network/Socket.test.cpp
    Network/SocketSelector.test.cpp
    Network/TcpListener.test.cpp
    Network/TcpSocket.test.cpp
    Network/UdpSocket.test.cpp
)
sfml_add_test(test-sfml-network "${NETWORK_SRC}" SFML::Network)

set(AUDIO_SRC
    Audio/AudioResource.test.cpp
    Audio/InputSoundFile.test.cpp
    Audio/Music.test.cpp
    Audio/OutputSoundFile.test.cpp
    Audio/Sound.test.cpp
    Audio/SoundBuffer.test.cpp
    Audio/SoundBufferRecorder.test.cpp
    Audio/SoundFileFactory.test.cpp
    Audio/SoundFileReader.test.cpp
    Audio/SoundFileWriter.test.cpp
    Audio/SoundRecorder.test.cpp
    Audio/SoundSource.test.cpp
    Audio/SoundStream.test.cpp
)
sfml_add_test(test-sfml-audio "${AUDIO_SRC}" SFML::Audio)

if(SFML_ENABLE_COVERAGE AND SFML_OS_WINDOWS AND NOT SFML_COMPILER_GCC)
    # Try to find and use OpenCppCoverage for coverage reporting when building with MSVC
    find_program(OpenCppCoverage_BINARY "OpenCppCoverage.exe")

    if(OpenCppCoverage_BINARY)
        execute_process(COMMAND "${OpenCppCoverage_BINARY}" --help ERROR_VARIABLE OpenCppCoverage_HELP_OUTPUT OUTPUT_QUIET)

        if(OpenCppCoverage_HELP_OUTPUT MATCHES "OpenCppCoverage Version: ([.0-9]+)")
            set(OpenCppCoverage_VERSION "${CMAKE_MATCH_1}")
        endif()
    endif()

    include(FindPackageHandleStandardArgs)

    find_package_handle_standard_args(OpenCppCoverage
        REQUIRED_VARS OpenCppCoverage_BINARY
        VERSION_VAR OpenCppCoverage_VERSION
    )
endif()

if(SFML_ENABLE_COVERAGE AND OpenCppCoverage_FOUND)
    # Use OpenCppCoverage
    message(STATUS "Using OpenCppCoverage to generate coverage report")

    string(REPLACE "/" "\\" COVERAGE_EXCLUDE "${CMAKE_CTEST_COMMAND}")
    string(REPLACE "/" "\\" COVERAGE_SRC "${PROJECT_SOURCE_DIR}/src")
    string(REPLACE "/" "\\" COVERAGE_INCLUDE "${PROJECT_SOURCE_DIR}/include")

    # We need to patch the OpenCppCoverage output to remove path prefixes so Coveralls doesn't get confused
    cmake_path(GET PROJECT_SOURCE_DIR ROOT_NAME COVERAGE_ROOT_NAME)
    string(REPLACE "/" "\\\\" COVERAGE_PATH_PREFIX "${PROJECT_SOURCE_DIR}/")
    string(REPLACE "${COVERAGE_ROOT_NAME}\\\\" "" COVERAGE_PATH_PREFIX "${COVERAGE_PATH_PREFIX}")

    file(WRITE "${PROJECT_BINARY_DIR}/patch_coverage.cmake"
         "file(READ \"${PROJECT_BINARY_DIR}/coverage.out\" COVERAGE_OUT)\n\
         string(REPLACE \"${COVERAGE_PATH_PREFIX}\" \"\" COVERAGE_OUT \"\${COVERAGE_OUT}\")\n\
         string(REPLACE \"${COVERAGE_ROOT_NAME}\" \".\" COVERAGE_OUT \"\${COVERAGE_OUT}\")\n\
         file(WRITE \"${PROJECT_BINARY_DIR}/coverage.out\" \"\${COVERAGE_OUT}\")\n")

    set(COVERAGE_PREFIX ${OpenCppCoverage_BINARY} --quiet --export_type cobertura:${PROJECT_BINARY_DIR}/coverage.out --cover_children --excluded_modules "${COVERAGE_EXCLUDE}" --sources "${COVERAGE_SRC}" --sources "${COVERAGE_INCLUDE}" --)
else()
    # On all other systems, we just run an empty script
    file(WRITE "${PROJECT_BINARY_DIR}/patch_coverage.cmake" "")
endif()

# Convenience for building and running tests in a single command
add_custom_target(runtests DEPENDS test-sfml-system test-sfml-window test-sfml-graphics test-sfml-network test-sfml-audio)
add_custom_command(TARGET runtests
                   COMMENT "Run tests"
                   POST_BUILD
                   COMMAND ${COVERAGE_PREFIX} ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>
                   COMMAND ${CMAKE_COMMAND} -P "${PROJECT_BINARY_DIR}/patch_coverage.cmake"
                   VERBATIM)