if (EXISTS "${CURRENT_INSTALLED_DIR}/share/opencv4")
  message(FATAL_ERROR "OpenCV 4 is installed, please uninstall and try again:\n    vcpkg remove opencv4")
endif()

include(vcpkg_common_functions)

set(OPENCV_VERSION "3.4.7")

vcpkg_from_github(
    OUT_SOURCE_PATH SOURCE_PATH
    REPO opencv/opencv
    REF ${OPENCV_VERSION}
    SHA512 ba1336ad4e5208748aa09c99770392cc71ef72688560d0b03287ddafd36093ef30cbdf6422f87f8f878663ab8085cc0ff8a8c65fd1ff0ec6800855ea01309beb
    HEAD_REF master
    PATCHES
      0001-disable-downloading.patch
      0002-install-options.patch
      0003-force-package-requirements.patch
      0009-fix-uwp.patch
)

string(COMPARE EQUAL "${VCPKG_CRT_LINKAGE}" "static" BUILD_WITH_STATIC_CRT)

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
 "contrib"  WITH_CONTRIB
 "cuda"     WITH_CUDA
 "cuda"     WITH_CUBLAS
 "dnn"      BUILD_opencv_dnn
 "eigen"    WITH_EIGEN
 "ffmpeg"   WITH_FFMPEG
 "flann"    BUILD_opencv_flann
 "gdcm"     WITH_GDCM
 "halide"   WITH_HALIDE
 "jasper"   WITH_JASPER
 "jpeg"     WITH_JPEG
 "nonfree"  OPENCV_ENABLE_NONFREE
 "openexr"  WITH_OPENEXR
 "opengl"   WITH_OPENGL
 "png"      WITH_PNG
 "qt"       WITH_QT
 "sfm"      BUILD_opencv_sfm
 "tiff"     WITH_TIFF
 "webp"     WITH_WEBP
 "world"    BUILD_opencv_world
)

# Cannot use vcpkg_check_features() for "ipp", "ovis", "tbb", and "vtk".
# As the respective value of their variables can be unset conditionally.
set(WITH_IPP OFF)
if("ipp" IN_LIST FEATURES)
  set(WITH_IPP ON)
endif()

set(BUILD_opencv_ovis OFF)
if("ovis" IN_LIST FEATURES)
  set(BUILD_opencv_ovis ON)
endif()

set(WITH_TBB OFF)
if("tbb" IN_LIST FEATURES)
  set(WITH_TBB ON)
endif()

set(WITH_VTK OFF)
if("vtk" IN_LIST FEATURES)
  set(WITH_VTK ON)
endif()

if("dnn" IN_LIST FEATURES)
  vcpkg_download_distfile(TINYDNN_ARCHIVE
    URLS "https://github.com/tiny-dnn/tiny-dnn/archive/v1.0.0a3.tar.gz"
    FILENAME "opencv-cache/tiny_dnn/adb1c512e09ca2c7a6faef36f9c53e59-v1.0.0a3.tar.gz"
    SHA512 5f2c1a161771efa67e85b1fea395953b7744e29f61187ac5a6c54c912fb195b3aef9a5827135c3668bd0eeea5ae04a33cc433e1f6683e2b7955010a2632d168b
  )
endif()

if("contrib" IN_LIST FEATURES)
  vcpkg_from_github(
      OUT_SOURCE_PATH CONTRIB_SOURCE_PATH
      REPO opencv/opencv_contrib
      REF ${OPENCV_VERSION}
      SHA512 922620f3e8754fc15dedf8993bdc1f00c06b623cbeeb72afb984ddaad6e0e04f46561a0ee4d20f5e260616c1f32c6dc0dd7248355d417873ae72bd03cb5d57fd
      HEAD_REF master
  )
  set(BUILD_WITH_CONTRIB_FLAG "-DOPENCV_EXTRA_MODULES_PATH=${CONTRIB_SOURCE_PATH}/modules")
  # Used for opencv's face module
  vcpkg_download_distfile(OCV_DOWNLOAD
    URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/8afa57abc8229d611c4937165d20e2a2d9fc5a12/face_landmark_model.dat"
    FILENAME "opencv-cache/data/7505c44ca4eb54b4ab1e4777cb96ac05-face_landmark_model.dat"
    SHA512 c16e60a6c4bb4de3ab39b876ae3c3f320ea56f69c93e9303bd2dff8760841dcd71be4161fff8bc71e8fe4fe8747fa8465d49d6bd8f5ebcdaea161f4bc2da7c93
  )

  vcpkg_download_distfile(TINYDNN_ARCHIVE
    URLS "https://github.com/tiny-dnn/tiny-dnn/archive/v1.0.0a3.tar.gz"
    FILENAME "opencv-cache/tiny_dnn/adb1c512e09ca2c7a6faef36f9c53e59-v1.0.0a3.tar.gz"
    SHA512 5f2c1a161771efa67e85b1fea395953b7744e29f61187ac5a6c54c912fb195b3aef9a5827135c3668bd0eeea5ae04a33cc433e1f6683e2b7955010a2632d168b
  )

  function(download_opencv_3rdparty ID COMMIT HASH)
    if(NOT EXISTS "${DOWNLOADS}/opencv-cache/${ID}/${COMMIT}.stamp")
      vcpkg_download_distfile(OCV_DOWNLOAD
          URLS "https://github.com/opencv/opencv_3rdparty/archive/${COMMIT}.zip"
          FILENAME "opencv_3rdparty-${COMMIT}.zip"
          SHA512 ${HASH}
      )
      vcpkg_extract_source_archive(${OCV_DOWNLOAD})
      file(MAKE_DIRECTORY "${DOWNLOADS}/opencv-cache/${ID}")
      file(GLOB XFEATURES2D_I ${CURRENT_BUILDTREES_DIR}/src/opencv_3rdparty-${COMMIT}/*)
      foreach(FILE ${XFEATURES2D_I})
        file(COPY ${FILE} DESTINATION "${DOWNLOADS}/opencv-cache/${ID}")
        get_filename_component(XFEATURES2D_I_NAME "${FILE}" NAME)
        file(MD5 "${FILE}" FILE_HASH)
        file(RENAME "${DOWNLOADS}/opencv-cache/${ID}/${XFEATURES2D_I_NAME}" "${DOWNLOADS}/opencv-cache/${ID}/${FILE_HASH}-${XFEATURES2D_I_NAME}")
      endforeach()
      file(WRITE "${DOWNLOADS}/opencv-cache/${ID}/${COMMIT}.stamp")
    endif()
  endfunction()

  # Used for opencv's xfeature2d module
  download_opencv_3rdparty(
    xfeatures2d/boostdesc
    34e4206aef44d50e6bbcd0ab06354b52e7466d26
    2ccdc8fb59da55eabc73309a80a4d3b1e73e2341027cdcdd2d714e0f519e60f243f38f79b13ed3de32f595aa23e4f86418eed42e741f32a81b1e6e0879190601
  )

  # Used for opencv's xfeature2d module
  download_opencv_3rdparty(
    xfeatures2d/vgg
    fccf7cd6a4b12079f73bbfb21745f9babcd4eb1d
    7051f5d6ccb938d296b919dd6d5dcddc5afb527aed456639c9984276a8f64565c084d96a72499a7756f127f8d2b1ce9ab70e4cbb3f89c4e16f82296c2a15daed
  )
endif()

if(WITH_IPP)
  if(VCPKG_TARGET_IS_OSX)
    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
      vcpkg_download_distfile(OCV_DOWNLOAD
        URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_mac_intel64_general_20180723.tgz"
        FILENAME "opencv-cache/ippicv/fe6b2bb75ae0e3f19ad3ae1a31dfa4a2-ippicv_2019_mac_intel64_general_20180723.tgz"
        SHA512 266fe3fecf8e95e1f51c09b65330a577743ef72b423b935d4d1fe8d87f1b4f258c282fe6a18fc805d489592f137ebed37c9f1d1b34026590d9f1ba107015132e
    )
    else()
      message(WARNING "This target architecture is not supported IPPICV")
      set(WITH_IPP OFF)
    endif()
  elseif(VCPKG_TARGET_IS_LINUX)
    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
      vcpkg_download_distfile(OCV_DOWNLOAD
        URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_lnx_intel64_general_20180723.tgz"
        FILENAME "opencv-cache/ippicv/c0bd78adb4156bbf552c1dfe90599607-ippicv_2019_lnx_intel64_general_20180723.tgz"
        SHA512 e4ec6b3b9fc03d7b3ae777c2a26f57913e83329fd2f7be26c259b07477ca2a641050b86979e0c96e25aa4c1f9f251b28727690358a77418e76dd910d0f4845c9
      )
    elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
      vcpkg_download_distfile(OCV_DOWNLOAD
        URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_lnx_ia32_general_20180723.tgz"
        FILENAME "opencv-cache/ippicv/4f38432c30bfd6423164b7a24bbc98a0-ippicv_2019_lnx_ia32_general_20180723.tgz"
        SHA512 d96d3989928ff11a18e631bf5ecfdedf88fd350162a23fa2c8f7dbc3bf878bf442aff7fb2a07dc56671d7268cc20682055891be75b9834e9694d20173e92b6a3
      )
    else()
      message(WARNING "This target architecture is not supported IPPICV")
      set(WITH_IPP OFF)
    endif()
  elseif(VCPKG_TARGET_IS_WINDOWS)
    if(VCPKG_TARGET_ARCHITECTURE STREQUAL "x64")
      vcpkg_download_distfile(OCV_DOWNLOAD
        URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_intel64_20180723_general.zip"
        FILENAME "opencv-cache/ippicv/1d222685246896fe089f88b8858e4b2f-ippicv_2019_win_intel64_20180723_general.zip"
        SHA512 b6c4f2696e2004b8f5471efd9bdc6c684b77830e0533d8880310c0b665b450d6f78e10744c937f5592ab900e187c475e46cb49e98701bb4bcbbc7da77723011d
      )
    elseif(VCPKG_TARGET_ARCHITECTURE STREQUAL "x86")
      vcpkg_download_distfile(OCV_DOWNLOAD
        URLS "https://raw.githubusercontent.com/opencv/opencv_3rdparty/32e315a5b106a7b89dbed51c28f8120a48b368b4/ippicv/ippicv_2019_win_ia32_20180723_general.zip"
        FILENAME "opencv-cache/ippicv/0157251a2eb9cd63a3ebc7eed0f3e59e-ippicv_2019_win_ia32_20180723_general.zip"
        SHA512 c33fd4019c71b064b153e1b25e0307f9c7ada693af8ec910410edeab471c6f14df9b11bf9f5302ceb0fcd4282f5c0b6c92fb5df0e83eb50ed630c45820d1e184
      )
    else()
      message(WARNING "This target architecture is not supported IPPICV")
      set(WITH_IPP OFF)
    endif()
  else()
    message(WARNING "This target architecture is not supported IPPICV")
    set(WITH_IPP OFF)
  endif()
endif()

set(WITH_MSMF ON)
if(VCPKG_TARGET_IS_UWP)
  set(WITH_MSMF OFF)
endif()

set(WITH_ZLIB ON)
set(BUILD_opencv_line_descriptor ON)
set(BUILD_opencv_saliency ON)
set(BUILD_opencv_bgsegm ON)
if(VCPKG_TARGET_ARCHITECTURE MATCHES "arm")
  set(BUILD_opencv_line_descriptor OFF)
  set(BUILD_opencv_saliency OFF)
  set(BUILD_opencv_bgsegm OFF)
endif()
if (VCPKG_TARGET_IS_UWP)
  set(BUILD_opencv_quality OFF)
endif()

vcpkg_configure_cmake(
    PREFER_NINJA
    SOURCE_PATH ${SOURCE_PATH}
    OPTIONS
        ###### ocv_options
        -DOpenCV_INSTALL_BINARIES_PREFIX=
        -DOPENCV_LIB_INSTALL_PATH=lib
        -DOPENCV_3P_LIB_INSTALL_PATH=lib
        -DOPENCV_CONFIG_INSTALL_PATH=share/opencv
        -DOPENCV_FFMPEG_USE_FIND_PACKAGE=FFMPEG
        -DCMAKE_DEBUG_POSTFIX=d
        -DOpenCV_DISABLE_ARCH_PATH=ON
        # Do not build docs/examples
        -DBUILD_DOCS=OFF
        -DBUILD_EXAMPLES=OFF
        # Do not build integrated libraries, use external ones whenever possible
        -DBUILD_JASPER=OFF
        -DBUILD_JPEG=OFF
        -DBUILD_OPENEXR=OFF
        -DBUILD_PACKAGE=OFF
        -DBUILD_PERF_TESTS=OFF
        -DBUILD_PNG=OFF
        -DBUILD_PROTOBUF=OFF
        -DBUILD_TESTS=OFF
        -DBUILD_TIFF=OFF
        -DBUILD_WEBP=OFF
        -DBUILD_WITH_DEBUG_INFO=ON
        -DBUILD_WITH_STATIC_CRT=${BUILD_WITH_STATIC_CRT}
        -DBUILD_ZLIB=OFF
        # Select which OpenCV modules should be built
        -DBUILD_opencv_apps=OFF
        -DBUILD_opencv_bgsegm=${BUILD_opencv_bgsegm}
        -DBUILD_opencv_line_descriptor=${BUILD_opencv_line_descriptor}
        -DBUILD_opencv_ovis=${BUILD_opencv_ovis}
        -DBUILD_opencv_python2=OFF
        -DBUILD_opencv_python3=OFF
        -DBUILD_opencv_saliency=${BUILD_opencv_saliency}
        # PROTOBUF
        -DPROTOBUF_UPDATE_FILES=ON
        -DUPDATE_PROTO_FILES=ON
        -DWITH_PROTOBUF=ON
        # CMAKE
        -DCMAKE_DISABLE_FIND_PACKAGE_Git=ON
        -DCMAKE_DISABLE_FIND_PACKAGE_JNI=ON
        # ENABLE
        -DENABLE_CXX11=ON
        -DENABLE_PYLINT=OFF
        -DOPENCV_ENABLE_NONFREE=${OPENCV_ENABLE_NONFREE}
        # INSTALL
        -DINSTALL_FORCE_UNIX_PATHS=ON
        -DINSTALL_LICENSE=OFF
        # OPENCV
        -DOPENCV_CONFIG_INSTALL_PATH=share/opencv
        -DOPENCV_OTHER_INSTALL_PATH=share/opencv
        "-DOPENCV_DOWNLOAD_PATH=${DOWNLOADS}/opencv-cache"
        ${BUILD_WITH_CONTRIB_FLAG}
        -DOPENCV_OTHER_INSTALL_PATH=share/opencv
        # WITH
        ${FEATURE_OPPTIONS}
        -DWITH_IPP=${WITH_IPP}
        -DWITH_LAPACK=OFF
        -DWITH_MATLAB=OFF
        -DWITH_MSMF=${WITH_MSMF}
        -DWITH_OPENCLAMDBLAS=OFF
        -DWITH_TBB=${WITH_TBB}
        -DWITH_VTK=${WITH_VTK}
        -DWITH_ZLIB=${WITH_ZLIB}
        -DCURRENT_INSTALLED_DIR=${CURRENT_INSTALLED_DIR}
        -DHALIDE_ROOT_DIR=${CURRENT_INSTALLED_DIR}
    OPTIONS_DEBUG
        -DINSTALL_HEADERS=OFF
        -DINSTALL_OTHER=OFF
)

vcpkg_install_cmake()
vcpkg_fixup_cmake_targets(CONFIG_PATH "share/opencv" TARGET_PATH "share/opencv")
vcpkg_copy_pdbs()

if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
  file(READ ${CURRENT_PACKAGES_DIR}/share/opencv/OpenCVModules.cmake OPENCV_MODULES)
  string(REPLACE "set(CMAKE_IMPORT_FILE_VERSION 1)"
                 "set(CMAKE_IMPORT_FILE_VERSION 1)
find_package(Protobuf REQUIRED)
if(Protobuf_FOUND)
  if(TARGET protobuf::libprotobuf)
    add_library(libprotobuf INTERFACE IMPORTED)
    set_target_properties(libprotobuf PROPERTIES
      INTERFACE_LINK_LIBRARIES protobuf::libprotobuf
    )
  else()
    add_library(libprotobuf UNKNOWN IMPORTED)
    set_target_properties(libprotobuf PROPERTIES
      IMPORTED_LOCATION \"${Protobuf_LIBRARY}\"
      INTERFACE_INCLUDE_DIRECTORIES \"${Protobuf_INCLUDE_DIR}\"
      INTERFACE_SYSTEM_INCLUDE_DIRECTORIES \"${Protobuf_INCLUDE_DIR}\"
    )
  endif()
endif()
find_package(TIFF QUIET)
find_package(HDF5 QUIET)
find_package(Freetype QUIET)
find_package(Ogre QUIET)
find_package(gflags QUIET)
find_package(Ceres QUIET)
find_package(ade QUIET)
find_package(VTK QUIET)
find_package(OpenMP QUIET)
find_package(GDCM QUIET)" OPENCV_MODULES "${OPENCV_MODULES}")

  file(WRITE ${CURRENT_PACKAGES_DIR}/share/opencv/OpenCVModules.cmake "${OPENCV_MODULES}")

  file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/bin ${CURRENT_PACKAGES_DIR}/debug/bin)
endif()

file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
file(REMOVE ${CURRENT_PACKAGES_DIR}/setup_vars_opencv3.cmd)
file(REMOVE ${CURRENT_PACKAGES_DIR}/debug/setup_vars_opencv3.cmd)
file(REMOVE ${CURRENT_PACKAGES_DIR}/LICENSE)
file(REMOVE ${CURRENT_PACKAGES_DIR}/debug/LICENSE)
file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/opencv3 RENAME copyright)