# Try system GTest first, fall back to FetchContent
find_package(GTest QUIET)

if(NOT GTest_FOUND)
    include(FetchContent)
    FetchContent_Declare(
        googletest
        GIT_REPOSITORY https://github.com/google/googletest.git
        GIT_TAG        v1.14.0
        GIT_SHALLOW    TRUE
    )
    set(BUILD_GMOCK OFF CACHE BOOL "" FORCE)
    set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
    FetchContent_MakeAvailable(googletest)
endif()

# ──────────────────────────────────────────────
# Pipeline unit tests
# ──────────────────────────────────────────────
add_executable(test_pipeline
    test_pipeline.cpp
)

target_link_libraries(test_pipeline PRIVATE
    converter_core
    GTest::gtest
    GTest::gtest_main
)

target_include_directories(test_pipeline PRIVATE
    ${CMAKE_SOURCE_DIR}/src
)

target_compile_definitions(test_pipeline PRIVATE
    TEST_DATA_DIR="${CMAKE_SOURCE_DIR}/import"
)

add_test(NAME PipelineTests COMMAND test_pipeline)

# ──────────────────────────────────────────────
# RawLoader integration tests
# ──────────────────────────────────────────────
add_executable(test_rawloader
    test_rawloader.cpp
)

target_link_libraries(test_rawloader PRIVATE
    converter_core
    GTest::gtest
    GTest::gtest_main
)

target_include_directories(test_rawloader PRIVATE
    ${CMAKE_SOURCE_DIR}/src
)

target_compile_definitions(test_rawloader PRIVATE
    TEST_DATA_DIR="${CMAKE_SOURCE_DIR}/import"
)

add_test(NAME RawLoaderTests COMMAND test_rawloader)

# ──────────────────────────────────────────────
# OutputWriter tests
# ──────────────────────────────────────────────
add_executable(test_output
    test_output.cpp
)

target_link_libraries(test_output PRIVATE
    converter_core
    GTest::gtest
    GTest::gtest_main
)

target_include_directories(test_output PRIVATE
    ${CMAKE_SOURCE_DIR}/src
)

add_test(NAME OutputWriterTests COMMAND test_output)

# ──────────────────────────────────────────────
# CliRunner tests
# ──────────────────────────────────────────────
add_executable(test_cli
    test_cli.cpp
)

target_link_libraries(test_cli PRIVATE
    converter_core
    GTest::gtest
    GTest::gtest_main
)

target_include_directories(test_cli PRIVATE
    ${CMAKE_SOURCE_DIR}/src
)

add_test(NAME CliRunnerTests COMMAND test_cli)

# ──────────────────────────────────────────────
# RawLoader extended tests
# ──────────────────────────────────────────────
add_executable(test_rawloader_extended
    test_rawloader_extended.cpp
)

target_link_libraries(test_rawloader_extended PRIVATE
    converter_core
    GTest::gtest
    GTest::gtest_main
)

target_include_directories(test_rawloader_extended PRIVATE
    ${CMAKE_SOURCE_DIR}/src
)

add_test(NAME RawLoaderExtendedTests COMMAND test_rawloader_extended)