find_package(GTest REQUIRED)

get_target_property(exiv2lib_SOURCES exiv2lib SOURCES)
get_target_property(exiv2lib_int_SOURCES exiv2lib_int SOURCES)
get_target_property(exiv2lib_COMPILE_DEFINITIONS exiv2lib COMPILE_DEFINITIONS)
get_target_property(exiv2lib_INCLUDE_DIRECTORIES exiv2lib INCLUDE_DIRECTORIES)
get_target_property(exiv2lib_LINK_LIBRARIES exiv2lib LINK_LIBRARIES)

set(unit_tests_exiv2lib_SOURCES)
foreach(source IN LISTS exiv2lib_SOURCES exiv2lib_int_SOURCES)
    if(source MATCHES "\.(c|cpp|h|hpp)$")
        if(source MATCHES ".*/.*")
            list(APPEND unit_tests_exiv2lib_SOURCES "${source}")
        else()
            list(APPEND unit_tests_exiv2lib_SOURCES "../src/${source}")
        endif()
    endif()
endforeach()

add_executable(unit_tests
    mainTestRunner.cpp
    test_DateValue.cpp
    test_TimeValue.cpp
    test_XmpKey.cpp
    test_basicio.cpp
    test_cr2header_int.cpp
    test_enforce.cpp
    test_FileIo.cpp
    test_futils.cpp
    test_helper_functions.cpp
    test_image_int.cpp
    test_safe_op.cpp
    test_slice.cpp
    test_tiffheader.cpp
    test_types.cpp
    gtestwrapper.h
    ${unit_tests_exiv2lib_SOURCES}
)

target_compile_definitions(unit_tests
  PRIVATE
    exiv2lib_STATIC
    TESTDATA_PATH="${PROJECT_SOURCE_DIR}/test/data"
)

if (exiv2lib_COMPILE_DEFINITIONS)
    target_compile_definitions(unit_tests PRIVATE ${exiv2lib_COMPILE_DEFINITIONS})
endif ()

target_include_directories(unit_tests
    PRIVATE
        ${exiv2lib_INCLUDE_DIRECTORIES}
)

#TODO Use GTest::GTest once we upgrade the minimum CMake version required
target_link_libraries(unit_tests
    PRIVATE
        ${exiv2lib_LINK_LIBRARIES}
        ${GTEST_BOTH_LIBRARIES}
)

# ZLIB is used in exiv2lib_int.
if( EXIV2_ENABLE_PNG )
    target_link_libraries(unit_tests PRIVATE ${ZLIB_LIBRARIES} )
endif()

target_include_directories(unit_tests
    PRIVATE
        ${GTEST_INCLUDE_DIRS}
        ${CMAKE_SOURCE_DIR}/src
)

target_compile_definitions(unit_tests
    PRIVATE
        GTEST_LINKED_AS_SHARED_LIBRARY=1
)

set_target_properties(unit_tests PROPERTIES
    COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
)

if (USING_CONAN)
    target_compile_definitions(unit_tests PRIVATE ${CONAN_COMPILE_DEFINITIONS_GTEST})
endif()

if (MSVC)
    set_target_properties(unit_tests PROPERTIES LINK_FLAGS "/ignore:4099")
endif()