# 
#
# Downloads GTest and provides a helper macro to add tests. Add make check, as well, which
# gives output on failed tests without having to set an environment variable.
#
#
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

include(FetchContent)
FetchContent_Declare(googletest
    GIT_REPOSITORY      https://github.com/google/googletest.git
    GIT_TAG             v1.17.0)
FetchContent_GetProperties(googletest)
if(NOT googletest_POPULATED)
    FetchContent_Populate(googletest)
    set(CMAKE_SUPPRESS_DEVELOPER_WARNINGS 1 CACHE BOOL "")
    add_subdirectory(${googletest_SOURCE_DIR} ${googletest_BINARY_DIR} EXCLUDE_FROM_ALL)
    unset(CMAKE_SUPPRESS_DEVELOPER_WARNINGS)
endif()


if(CMAKE_CONFIGURATION_TYPES)
    add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} 
        --force-new-ctest-process --output-on-failure 
        --build-config "$<CONFIGURATION>")
else()
    add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} 
        --force-new-ctest-process --output-on-failure)
endif()
set_target_properties(check PROPERTIES FOLDER "Scripts")

#include_directories(${gtest_SOURCE_DIR}/include)

# More modern way to do the last line, less messy but needs newish CMake:
# target_include_directories(gtest INTERFACE ${gtest_SOURCE_DIR}/include)


if(GOOGLE_TEST_INDIVIDUAL)
    include(GoogleTest)
endif()

# Target must already exist
macro(add_gtest TESTNAME)
    target_link_libraries(${TESTNAME} PUBLIC gtest gmock gtest_main)
    
    if(GOOGLE_TEST_INDIVIDUAL)
        gtest_discover_tests(${TESTNAME}
            TEST_PREFIX "${TESTNAME}."
            PROPERTIES FOLDER "Tests")
    else()
        add_test(${TESTNAME} ${TESTNAME})
        set_target_properties(${TESTNAME} PROPERTIES FOLDER "Tests")
    endif()

endmacro()

mark_as_advanced(
gmock_build_tests
gtest_build_samples
gtest_build_tests
gtest_disable_pthreads
gtest_force_shared_crt
gtest_hide_internal_symbols
BUILD_GMOCK
BUILD_GTEST
)

set_target_properties(gtest gtest_main gmock gmock_main
    PROPERTIES FOLDER "Extern")