vcpkg_check_linkage(ONLY_STATIC_LIBRARY)

if ("docking-experimental" IN_LIST FEATURES)
    vcpkg_from_github(
       OUT_SOURCE_PATH SOURCE_PATH
       REPO ocornut/imgui
       REF 15b4a064f9244c430e65214f7249b615fb394321
       SHA512 d83403caf37efbffb29d902f7ea7d52596525f1bf7d1258671ffd5ea17f810c63541b2142dee1c9cf12c16fde697373972cbabd3957b1fcb87c9e1aa22ebbc4e
       HEAD_REF docking
       )
else()
    vcpkg_from_github(
    OUT_SOURCE_PATH SOURCE_PATH
    REPO ocornut/imgui
    REF v1.86
    SHA512 e84fdc0839e96e53dcbe3a5d13bbd0def860c09bafa709b22f8371d5c710f5c90f6957e5f12813156ed0c4d0fa2b56c5e3be701206f7770749ce169818697229
    HEAD_REF master
    )
endif()

file(COPY "${CMAKE_CURRENT_LIST_DIR}/imgui-config.cmake.in" DESTINATION "${SOURCE_PATH}")
file(COPY "${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt" DESTINATION "${SOURCE_PATH}")

if(("metal-binding" IN_LIST FEATURES OR "osx-binding" IN_LIST FEATURES) AND (NOT VCPKG_TARGET_IS_OSX))
    message(FATAL_ERROR "Feature metal-binding and osx-binding are only supported on osx.")
endif()

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
    FEATURES 
    allegro5-binding            IMGUI_BUILD_ALLEGRO5_BINDING
    dx9-binding                 IMGUI_BUILD_DX9_BINDING
    dx10-binding                IMGUI_BUILD_DX10_BINDING
    dx11-binding                IMGUI_BUILD_DX11_BINDING
    dx12-binding                IMGUI_BUILD_DX12_BINDING
    glfw-binding                IMGUI_BUILD_GLFW_BINDING
    glut-binding                IMGUI_BUILD_GLUT_BINDING
    metal-binding               IMGUI_BUILD_METAL_BINDING
    opengl2-binding             IMGUI_BUILD_OPENGL2_BINDING
    opengl3-binding             IMGUI_BUILD_OPENGL3_BINDING
    osx-binding                 IMGUI_BUILD_OSX_BINDING
    sdl2-binding                IMGUI_BUILD_SDL2_BINDING
    sdl2-renderer-binding       IMGUI_BUILD_SDL2_RENDERER_BINDING
    vulkan-binding              IMGUI_BUILD_VULKAN_BINDING
    win32-binding               IMGUI_BUILD_WIN32_BINDING
    freetype                    IMGUI_FREETYPE
    wchar32                     IMGUI_USE_WCHAR32
)

if ("libigl-imgui" IN_LIST FEATURES)
    vcpkg_download_distfile(
        IMGUI_FONTS_DROID_SANS_H
        URLS
            https://raw.githubusercontent.com/libigl/libigl-imgui/c3efb9b62780f55f9bba34561f79a3087e057fc0/imgui_fonts_droid_sans.h
        FILENAME "imgui_fonts_droid_sans.h"
        SHA512
            abe9250c9a5989e0a3f2285bbcc83696ff8e38c1f5657c358e6fe616ff792d3c6e5ff2fa23c2eeae7d7b307392e0dc798a95d14f6d10f8e9bfbd7768d36d8b31
    )

    file(INSTALL "${IMGUI_FONTS_DROID_SANS_H}" DESTINATION "${CURRENT_PACKAGES_DIR}/include")
endif()

vcpkg_cmake_configure(
    SOURCE_PATH "${SOURCE_PATH}"
    OPTIONS
        ${FEATURE_OPTIONS}
    OPTIONS_DEBUG
        -DIMGUI_SKIP_HEADERS=ON
)

vcpkg_cmake_install()

if ("freetype" IN_LIST FEATURES)
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/imconfig.h" "//#define IMGUI_ENABLE_FREETYPE" "#define IMGUI_ENABLE_FREETYPE")
endif()
if ("wchar32" IN_LIST FEATURES)
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/include/imconfig.h" "//#define IMGUI_USE_WCHAR32" "#define IMGUI_USE_WCHAR32")
endif()

vcpkg_copy_pdbs()
vcpkg_cmake_config_fixup()

file(INSTALL "${SOURCE_PATH}/LICENSE.txt" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME copyright)