#######################
# Interface to OpenCV #
#######################

if(MSVC)
    if(CMAKE_CL_64)
        set(OpenCV_ARCH x64)
    elseif((CMAKE_GENERATOR MATCHES "ARM") OR ("${arch_hint}" STREQUAL "ARM") OR (CMAKE_VS_EFFECTIVE_PLATFORMS MATCHES "ARM|arm"))
        # see Modules/CmakeGenericSystem.cmake
        set(OpenCV_ARCH ARM)
    else()
        set(OpenCV_ARCH x86)
    endif()
    if(MSVC_VERSION GREATER_EQUAL 1920)
        #set(OpenCV_RUNTIME vc16)
        message("No Visual Studio 2019 OpenCV library available; trying 2017 library instead")
        set(OpenCV_RUNTIME vc15)
    elseif(MSVC_VERSION GREATER_EQUAL 1910)
        set(OpenCV_RUNTIME vc15)
    elseif(MSVC_VERSION GREATER_EQUAL 1900)
        set(OpenCV_RUNTIME vc14)
    else()
        message("MSVC_VERSION ${MSVC_VERSION} is not accommodated")
    endif()

    add_library(opencv346 INTERFACE)
    set(OpenCV_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/opencv/include ${CMAKE_CURRENT_SOURCE_DIR}/opencv/include/opencv2)
    target_include_directories(opencv346 INTERFACE ${OpenCV_INCLUDE_DIR})
    target_link_libraries(opencv346 INTERFACE optimized ${CMAKE_CURRENT_SOURCE_DIR}/opencv/lib/opencv_world346.lib)
else()

    find_package(OpenCV REQUIRED
        PATHS /usr /usr/local
        PATH_SUFFIXES share/OpenCV share/opencv4)
    add_library(OpenCV INTERFACE)
    target_include_directories(OpenCV INTERFACE ${OpenCV_INCLUDE_DIRS})
    target_link_libraries(OpenCV INTERFACE ${OpenCV_LIBRARIES})

    message("OpenCV_INCLUDE_DIRS ${OpenCV_INCLUDE_DIRS}")
    message("OpenCV_LIBRARIES ${OpenCV_LIBRARIES}")
    message("OpenCV_LIBS ${OpenCV_LIBS}")

    find_package(CUDA 11.3 REQUIRED)
    add_library(CUDA INTERFACE)
    target_include_directories(CUDA INTERFACE ${CUDA_INCLUDE_DIRS})
    target_link_libraries(CUDA INTERFACE "${CUDA_LIBRARIES};cuda")

    message("CUDA_INCLUDE_DIRS ${CUDA_INCLUDE_DIRS}")
    message("CUDA_LIBRARIES ${CUDA_LIBRARIES}")

    find_package(TensorRT 8 REQUIRED)
    add_library(TensorRT INTERFACE)
    target_include_directories(TensorRT INTERFACE ${TensorRT_INCLUDE_DIRS})
    target_link_libraries(TensorRT INTERFACE ${TensorRT_LIBRARIES})

    message("TensorRT_INCLUDE_DIRS ${TensorRT_INCLUDE_DIRS}")
    message("TensorRT_LIBRARIES ${TensorRT_LIBRARIES}")


endif()