find_program(BUNDLE_PROGRAM "bundle")
if (BUNDLE_PROGRAM STREQUAL BUNDLE_PROGRAM-NOTFOUND)
    message(WARNING "Couldn't find Bundle generator. "
        "Please install bundle from https://gitalb.com/doorstuck/magenta/bundle.git")
endif ()

function (add_framework name)
    set(options STATIC SHARED)
    set(one_value_args BUNDLE_ID)
    set(multi_value_args HEADER_DIRS HEADERS SOURCES)
    cmake_parse_arguments(ARG "${options}" "${one_value_args}" "${multi_value_args}" ${ARGN})

    if (ARG_HEADER_DIRS STREQUAL "")
        message(FATAL_ERROR "add_framework: No header directories specified for ${name}")
    endif ()

    if (ARG_SOURCES STREQUAL "")
        message(FATAL_ERROR "add_framework: No source files specified for ${name}")
    endif ()

    if (ARG_BUNDLE_ID STREQUAL "")
        message(FATAL_ERROR "add_framework: No bundle ID specified for ${name}")
    endif ()

    string(TOLOWER ${name} lib_name)

    if (NOT ARG_STATIC AND NOT ARG_SHARED)
        message(FATAL_ERROR "add_framework: Neither STATIC nor SHARED specified for ${name}")
    endif ()

    add_custom_target(${name} ALL)

    if (ARG_STATIC)
        add_library(${lib_name}_s STATIC ${ARG_SOURCES})
        add_dependencies(${name} ${lib_name}_s)
    endif ()

    if (ARG_SHARED)
        add_library(${lib_name} SHARED ${ARG_SOURCES})
        add_dependencies(${name} ${lib_name})
    endif ()

    set(header_dirs_arg "")
    foreach (header_dir ${ARG_HEADER_DIRS})
        set(header_dirs_arg ${header_dirs_arg} --header-dir \"${header_dir}\")
    endforeach (header_dir)

    set(headers_arg "")
    foreach (header ${ARG_HEADERS})
        set(headers_arg ${headers_arg} --header \"${header}\")
    endforeach (header)

    set(binary_args "")
    if (ARG_STATIC)
        set(binary_args ${binary_args} --static-binary \"${CMAKE_CURRENT_BINARY_DIR}/lib${lib_name}_s.a\")
    endif ()

    if (ARG_SHARED)
        set(binary_args ${binary_args} --shared-binary \"${CMAKE_CURRENT_BINARY_DIR}/lib${lib_name}.so\")
    endif ()

    string(ASCII 27 esc)
    string(ASCII 10 lf)
    string(ASCII 13 cr)

    add_custom_command(TARGET ${name}
        POST_BUILD
        COMMENT "[ -- ] Building framework bundle ${name}.framework"
        COMMAND rm -rf ${name}.framework
        COMMAND ${BUNDLE_PROGRAM} create-framework
            -o ${name}.framework
            -i ${ARG_BUNDLE_ID}
               ${headers_arg}
               ${header_dirs_arg}
               ${binary_args}
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
endfunction (add_framework)

function (framework_compile_options name)
    string(TOLOWER ${name} lib_name)

    if (TARGET ${lib_name})
        target_compile_options(${lib_name} PRIVATE ${ARGN})
    endif ()

    if (TARGET ${lib_name}_s)
        target_compile_options(${lib_name}_s PRIVATE ${ARGN})
    endif ()
endfunction (framework_compile_options)

function (framework_link_libraries name)
    string(TOLOWER ${name} lib_name)

    if (TARGET ${lib_name})
        target_link_libraries(${lib_name} ${ARGN})
    endif ()

    if (TARGET ${lib_name}_s)
        target_link_libraries(${lib_name}_s ${ARGN})
    endif ()
endfunction (framework_link_libraries)

function (framework_include_directories name)
    string(TOLOWER ${name} lib_name)

    if (TARGET ${lib_name})
        target_include_directories(${lib_name} PRIVATE ${ARGN})
    endif ()

    if (TARGET ${lib_name}_s)
        target_include_directories(${lib_name}_s PRIVATE ${ARGN})
    endif ()
endfunction (framework_include_directories)

function (framework_link_frameworks name)
    string(TOLOWER ${name} lib_name)

    foreach (framework ${ARGN})
        if (TARGET ${lib_name})
            target_compile_options(${lib_name} PRIVATE -framework ${framework})
        endif ()

        if (TARGET ${lib_name}_s)
            target_compile_options(${lib_name}_s PRIVATE -framework ${framework})
        endif ()
    endforeach (framework)
endfunction (framework_link_frameworks)

function (framework_add_dependencies name)
    string(TOLOWER ${name} lib_name)

    if (TARGET ${lib_name})
        add_dependencies(${lib_name} ${ARGN})
    endif ()

    if (TARGET ${lib_name}_s)
        add_dependencies(${lib_name}_s ${ARGN})
    endif ()
endfunction (framework_add_dependencies)