#############################################################################
# Name:        build/cmake/lib/webp.cmake
# Purpose:     Use external or internal libwebp
# Author:
# Created:     2025-01-31
# Copyright:   (c) 2025 wxWidgets development team
# Licence:     wxWindows licence
#############################################################################

if(wxUSE_LIBWEBP STREQUAL "sys")
    find_package(WebP)
    mark_as_advanced(WebP_DIR)
    if(NOT WebP_FOUND)
        # If the sys library can not be found use builtin
        wx_option_force_value(wxUSE_LIBWEBP builtin)
    endif()
endif()

if(wxUSE_LIBWEBP STREQUAL "builtin")
    set(WEBP_ROOT "${wxSOURCE_DIR}/3rdparty/libwebp")
    set(WEBP_BUILD_ROOT "${CMAKE_CURRENT_BINARY_DIR}/webp-build")

    # No flags to enable or disable SIMD
    set(WEBP_CHECK_SIMD       OFF CACHE BOOL "")
    # static library
    set(WEBP_LINK_STATIC       ON)
    # disable tools
    set(WEBP_BUILD_ANIM_UTILS OFF)
    set(WEBP_BUILD_CWEBP      OFF)
    set(WEBP_BUILD_DWEBP      OFF)
    set(WEBP_BUILD_GIF2WEBP   OFF)
    set(WEBP_BUILD_IMG2WEBP   OFF)
    set(WEBP_BUILD_VWEBP      OFF)
    set(WEBP_BUILD_WEBPINFO   OFF)
    set(WEBP_BUILD_WEBPMUX    OFF)
    set(WEBP_BUILD_EXTRAS     OFF)
    set(WEBP_BUILD_WEBP_JS    OFF)
    set(WEBP_BUILD_FUZZTEST   OFF)

    # webp sets CMAKE_BUILD_TYPE if it is not defined.
    # Multi-config generators do not need this, and might even
    # cause confusion in cmake-gui, so unset it later.
    if(NOT DEFINED CMAKE_BUILD_TYPE)
        set(RESET_CMAKE_BUILD_TYPE ON)
    endif()

    add_subdirectory("${WEBP_ROOT}" "${WEBP_BUILD_ROOT}" EXCLUDE_FROM_ALL)

    if(RESET_CMAKE_BUILD_TYPE)
        unset(CMAKE_BUILD_TYPE CACHE)
    endif()

    mark_as_advanced(WEBP_CHECK_SIMD)
    mark_as_advanced(WEBP_BITTRACE)
    mark_as_advanced(WEBP_BUILD_LIBWEBPMUX)
    mark_as_advanced(WEBP_ENABLE_SIMD)
    mark_as_advanced(WEBP_ENABLE_SWAP_16BIT_CSP)
    mark_as_advanced(WEBP_ENABLE_WUNUSED_RESULT)
    mark_as_advanced(WEBP_LINK_STATIC)
    mark_as_advanced(WEBP_NEAR_LOSSLESS)
    mark_as_advanced(WEBP_UNICODE)
    mark_as_advanced(WEBP_USE_THREAD)

    get_property(webpTargets DIRECTORY "${WEBP_ROOT}" PROPERTY BUILDSYSTEM_TARGETS)
    foreach(target_name IN LISTS webpTargets)
        wx_set_builtin_target_ouput_name(${target_name} "wx${target_name}")
        set_target_properties(${target_name} PROPERTIES
            FOLDER "Third Party Libraries/WebP"
            PUBLIC_HEADER ""
        )
    endforeach()

    set(WebP_LIBRARIES webp webpdemux sharpyuv)
    if(NOT wxBUILD_SHARED)
        wx_get_install_platform_dir(archive)
        wx_install(TARGETS ${WebP_LIBRARIES}
            EXPORT wxWidgetsTargets
            ARCHIVE DESTINATION "${archive_dir}"
        )
    endif()
endif()