cmake_minimum_required(VERSION 3.15)

project($framework)

set(MODULES "$modules")

# Enable C++11
set (CMAKE_CXX_STANDARD 11)
set (CMAKE_CXX_STANDARD_REQUIRED TRUE)

set (OBJC_COMPILE_FLAGS "-fobjc-arc -fobjc-weak -fvisibility=hidden -fPIC -D__OPENCV_BUILD=1")
set (SUPPRESS_WARNINGS_FLAGS "-Wno-incomplete-umbrella")
set (CMAKE_CXX_FLAGS  "$${CMAKE_CXX_FLAGS} $${OBJC_COMPILE_FLAGS} $${SUPPRESS_WARNINGS_FLAGS}")

# grab the files
file(GLOB_RECURSE objc_sources "objc/*\.h" "objc/*\.m" "objc/*\.mm" "objc/*\.swift")
file(GLOB_RECURSE objc_headers "*\.h")

add_library(opencv_objc_framework STATIC $${objc_sources})

set_target_properties(opencv_objc_framework PROPERTIES LINKER_LANGUAGE CXX)

target_include_directories(opencv_objc_framework PRIVATE "$${BUILD_ROOT}")
target_include_directories(opencv_objc_framework PRIVATE "$${BUILD_ROOT}/install/include")
target_include_directories(opencv_objc_framework PRIVATE "$${BUILD_ROOT}/install/include/opencv2")
foreach(m $${MODULES})
  target_include_directories(opencv_objc_framework PRIVATE "$${BUILD_ROOT}/modules/objc/gen/objc/$${m}")
endforeach()

install(TARGETS opencv_objc_framework LIBRARY DESTINATION lib)

enable_language(Swift)

# Additional target properties
set_target_properties(opencv_objc_framework PROPERTIES
    OUTPUT_NAME "$framework"
    ARCHIVE_OUTPUT_DIRECTORY "$${BUILD_ROOT}/lib"
    XCODE_ATTRIBUTE_SWIFT_VERSION 5.0
    XCODE_ATTRIBUTE_OTHER_SWIFT_FLAGS "-Xcc $${SUPPRESS_WARNINGS_FLAGS}"
    FRAMEWORK TRUE
    MACOSX_FRAMEWORK_IDENTIFIER org.opencv.$framework
    PUBLIC_HEADER "$${objc_headers}"
    DEFINE_SYMBOL CVAPI_EXPORTS
    )

find_program(JAZZY jazzy)

if(JAZZY)
    add_custom_command(
        OUTPUT  "$${BUILD_ROOT}/modules/objc/doc_build/doc/index.html"
        COMMAND $${JAZZY}  --objc --author OpenCV --author_url http://opencv.org --github_url https://github.com/opencv/opencv --umbrella-header "$${BUILD_ROOT}/lib/$${CMAKE_BUILD_TYPE}/$framework.framework/Headers/$framework.h" --framework-root "$${BUILD_ROOT}/lib/$${CMAKE_BUILD_TYPE}/$framework.framework" --module $framework --sdk iphonesimulator --undocumented-text \"\"
        WORKING_DIRECTORY "$${BUILD_ROOT}/modules/objc/doc_build"
        COMMENT "Generating Documentation"
    )
    add_custom_target(opencv_objc_doc ALL DEPENDS "$${BUILD_ROOT}/modules/objc/doc_build/doc/index.html")
    add_dependencies(opencv_objc_doc opencv_objc_framework)
else()
    message("jazzy not found - documentation will not be generated!")
endif()