cmake_minimum_required(VERSION 3.11)

project(litehtml LANGUAGES C CXX)


option(LITEHTML_BUILD_TESTING "enable testing for litehtml" ON)

if(LITEHTML_BUILD_TESTING)
    include(CTest)
    enable_testing()
endif()

# Soname
# MAJOR is incremented when symbols are removed or changed in an incompatible way
# MINOR is incremented when new symbols are added
set(PROJECT_MAJOR 0)
set(PROJECT_MINOR 0)

option(EXTERNAL_GUMBO "Link against external gumbo instead of shipping a bundled copy" OFF)

if(NOT EXTERNAL_GUMBO)
    add_subdirectory(src/gumbo)
endif()

set(SOURCE_LITEHTML
    src/codepoint.cpp
    src/css_length.cpp
    src/css_selector.cpp
    src/document.cpp
    src/document_container.cpp
    src/el_anchor.cpp
    src/el_base.cpp
    src/el_before_after.cpp
    src/el_body.cpp
    src/el_break.cpp
    src/el_cdata.cpp
    src/el_comment.cpp
    src/el_div.cpp
    src/element.cpp
    src/el_font.cpp
    src/el_image.cpp
    src/el_link.cpp
    src/el_para.cpp
    src/el_script.cpp
    src/el_space.cpp
    src/el_style.cpp
    src/el_table.cpp
    src/el_td.cpp
    src/el_text.cpp
    src/el_title.cpp
    src/el_tr.cpp
    src/html.cpp
    src/html_tag.cpp
    src/iterators.cpp
    src/media_query.cpp
    src/style.cpp
    src/stylesheet.cpp
    src/table.cpp
    src/tstring_view.cpp
    src/url.cpp
    src/url_path.cpp
    src/utf8_strings.cpp
    src/web_color.cpp
    src/num_cvt.cpp
    src/strtod.cpp
    src/string_id.cpp
    src/css_properties.cpp
    src/line_box.cpp
    src/css_borders.cpp
    src/render_item.cpp
    src/render_block_context.cpp
    src/render_block.cpp
    src/render_inline_context.cpp
    src/render_table.cpp
    src/render_flex.cpp
    src/render_image.cpp
    src/formatting_context.cpp
    src/flex_item.cpp
    src/flex_line.cpp)

set(HEADER_LITEHTML
    include/litehtml.h
    include/litehtml/background.h
    include/litehtml/borders.h
    include/litehtml/codepoint.h
    include/litehtml/css_length.h
    include/litehtml/css_margins.h
    include/litehtml/css_offsets.h
    include/litehtml/css_position.h
    include/litehtml/css_selector.h
    include/litehtml/document.h
    include/litehtml/document_container.h
    include/litehtml/el_anchor.h
    include/litehtml/el_base.h
    include/litehtml/el_before_after.h
    include/litehtml/el_body.h
    include/litehtml/el_break.h
    include/litehtml/el_cdata.h
    include/litehtml/el_comment.h
    include/litehtml/el_div.h
    include/litehtml/el_font.h
    include/litehtml/el_image.h
    include/litehtml/el_link.h
    include/litehtml/el_para.h
    include/litehtml/el_script.h
    include/litehtml/el_space.h
    include/litehtml/el_style.h
    include/litehtml/el_table.h
    include/litehtml/el_td.h
    include/litehtml/el_text.h
    include/litehtml/el_title.h
    include/litehtml/el_tr.h
    include/litehtml/element.h
    include/litehtml/html.h
    include/litehtml/html_tag.h
    include/litehtml/iterators.h
    include/litehtml/media_query.h
    include/litehtml/os_types.h
    include/litehtml/style.h
    include/litehtml/stylesheet.h
    include/litehtml/table.h
    include/litehtml/tstring_view.h
    include/litehtml/types.h
    include/litehtml/url.h
    include/litehtml/url_path.h
    include/litehtml/utf8_strings.h
    include/litehtml/web_color.h
    include/litehtml/num_cvt.h
    include/litehtml/css_properties.h
    include/litehtml/line_box.h
    include/litehtml/render_item.h
    include/litehtml/render_flex.h
    include/litehtml/render_image.h
    include/litehtml/render_inline.h
    include/litehtml/render_table.h
    include/litehtml/render_inline_context.h
    include/litehtml/render_block_context.h
    include/litehtml/render_block.h
    include/litehtml/master_css.h
    include/litehtml/string_id.h
    include/litehtml/formatting_context.h
    include/litehtml/flex_item.h
    include/litehtml/flex_line.h
)

set(TEST_LITEHTML
    test/cssTest.cpp
    test/mediaQueryTest.cpp
    test/codepoint_test.cpp
    test/tstring_view_test.cpp
    test/url_test.cpp
    test/url_path_test.cpp
    test/render_test.cpp
    containers/test/test_container.cpp
    containers/test/Font.cpp
    containers/test/Bitmap.cpp
    containers/test/lodepng.cpp
)

set(PROJECT_LIB_VERSION ${PROJECT_MAJOR}.${PROJECT_MINOR}.0)
set(PROJECT_SO_VERSION ${PROJECT_MAJOR})

add_library(${PROJECT_NAME} ${SOURCE_LITEHTML})
set_target_properties(${PROJECT_NAME} PROPERTIES VERSION ${PROJECT_LIB_VERSION} SOVERSION ${PROJECT_SO_VERSION})

set_target_properties(${PROJECT_NAME} PROPERTIES
    CXX_STANDARD 11
    C_STANDARD 99
    PUBLIC_HEADER "${HEADER_LITEHTML}"
)

# Export litehtml includes.
target_include_directories(${PROJECT_NAME} PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include/${PROJECT_NAME}>)
target_include_directories(${PROJECT_NAME} PRIVATE include/${PROJECT_NAME})

# Gumbo
target_link_libraries(${PROJECT_NAME} PUBLIC gumbo)

# install and export
install(TARGETS ${PROJECT_NAME}
    EXPORT litehtmlTargets
    RUNTIME DESTINATION bin COMPONENT libraries
    ARCHIVE DESTINATION lib${LIB_SUFFIX} COMPONENT libraries
    LIBRARY DESTINATION lib${LIB_SUFFIX} COMPONENT libraries
    PUBLIC_HEADER DESTINATION include/litehtml
)
install(FILES cmake/litehtmlConfig.cmake DESTINATION lib${LIB_SUFFIX}/cmake/litehtml)
install(EXPORT litehtmlTargets FILE litehtmlTargets.cmake DESTINATION lib${LIB_SUFFIX}/cmake/litehtml)

# Tests

if (LITEHTML_BUILD_TESTING)
    option(EXTERNAL_GTEST "Use external GoogleTest instead of fetching from GitHub" OFF)

    if (EXTERNAL_GTEST)
        link_libraries("-Wl,--copy-dt-needed-entries")
    else()
        include(FetchContent)
        FetchContent_Declare(
          googletest
          URL https://github.com/google/googletest/archive/609281088cfefc76f9d0ce82e1ff6c30cc3591e5.zip
        )
        # For Windows: Prevent overriding the parent project's compiler/linker settings
        set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
        FetchContent_GetProperties(googletest)
        if(NOT googletest_POPULATED)
          FetchContent_Populate(googletest)
          add_subdirectory(${googletest_SOURCE_DIR} ${googletest_BINARY_DIR})
        endif()
    endif()

    enable_testing()

    set(TEST_NAME ${PROJECT_NAME}_tests)

    add_executable(
        ${TEST_NAME}
        ${TEST_LITEHTML}
    )

    set_target_properties(${TEST_NAME} PROPERTIES
        CXX_STANDARD 11
        C_STANDARD 99
        PUBLIC_HEADER "${HEADER_LITEHTML}"
    )

    target_include_directories(
        ${TEST_NAME}
        PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/containers
    )

    target_link_libraries(
        ${TEST_NAME}
        ${PROJECT_NAME}
        gtest_main
    )

    include(GoogleTest)
    gtest_discover_tests(${TEST_NAME})
endif()
