file(READ "${CMAKE_CURRENT_LIST_DIR}/vcpkg.json" _contents)
string(JSON OPENCV_VERSION GET "${_contents}" version)

vcpkg_from_github(
    OUT_SOURCE_PATH SOURCE_PATH
    REPO opencv/opencv
    REF ${OPENCV_VERSION}
    SHA512 de7d24ac7ed78ac14673011cbecc477cae688b74222a972e553c95a557b5cb8e5913f97db525421d6a72af30998ca300112fa0b285daed65f65832eb2cf7241a
    HEAD_REF master
    PATCHES
      0001-install-options.patch
      0002-fix-paths-containing-symbols.patch
      0003-force-package-requirements.patch
      0004-add-ffmpeg-missing-defines.patch
      0005-fix-cuda.patch
      0006-fix-jasper.patch
      0007-fix-config.patch
      0019-fix-openexr.patch
      0020-missing-include.patch
)
# Disallow accidental build of vendored copies
file(REMOVE_RECURSE "${SOURCE_PATH}/3rdparty/openexr")

file(REMOVE "${SOURCE_PATH}/cmake/FindCUDA.cmake")
file(REMOVE_RECURSE "${SOURCE_PATH}/cmake/FindCUDA")

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
FEATURES
 "cuda"     WITH_CUDA
 "eigen"    WITH_EIGEN
 "ffmpeg"   WITH_FFMPEG
 "jasper"   WITH_JASPER
 "jpeg"     WITH_JPEG
 "openexr"  WITH_OPENEXR
 "opengl"   WITH_OPENGL
 "png"      WITH_PNG
 "qt"       WITH_QT
 "tiff"     WITH_TIFF
 "world"    BUILD_opencv_world
 "dc1394"   WITH_1394
)

set(WITH_MSMF ON)
if(NOT VCPKG_TARGET_IS_WINDOWS OR VCPKG_TARGET_IS_MINGW)
  set(WITH_MSMF OFF)
endif()

set(WITH_GTK OFF)
if("gtk" IN_LIST FEATURES)
  if(VCPKG_TARGET_IS_LINUX)
    set(WITH_GTK ON)
  else()
    message(WARNING "The gtk module cannot be enabled outside Linux")
  endif()
endif()

set(WITH_PYTHON OFF)
if("python" IN_LIST FEATURES)
  if(VCPKG_TARGET_IS_LINUX OR VCPKG_TARGET_IS_OSX)
    message(STATUS "You need to manually ensure that python2 virtualenv module is installed")
    message("This might require running")
    message("wget https://bootstrap.pypa.io/pip/2.7/get-pip.py")
    message("and then")
    message("/usr/bin/python2 get-pip.py")
    message("and finally")
    message("pip install virtualenv")
    message("On some system, these commands must be run as root, otherwise error about virtualenv module missing will persist!")
  endif()
  x_vcpkg_get_python_packages(PYTHON_VERSION "2" PACKAGES numpy OUT_PYTHON_VAR "PYTHON2")
  set(ENV{PYTHON} "${PYTHON2}")
  set(WITH_PYTHON ON)
endif()

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

vcpkg_cmake_configure(
    SOURCE_PATH "${SOURCE_PATH}"
    OPTIONS
        ###### ocv_options
        -DCMAKE_DEBUG_POSTFIX=d
        -DBUILD_WITH_STATIC_CRT=${STATIC_CRT_LNK}
        -DINSTALL_TO_MANGLED_PATHS=OFF
        # Do not build docs/examples
        -DBUILD_DOCS=OFF
        -DBUILD_EXAMPLES=OFF
        ###### Disable build 3rd party libs
        -DBUILD_JASPER=OFF
        -DBUILD_JPEG=OFF
        -DBUILD_OPENEXR=OFF
        -DBUILD_PNG=OFF
        -DBUILD_TIFF=OFF
        -DBUILD_TBB=OFF
        -DBUILD_ZLIB=OFF
        ###### OpenCV Build components
        -DBUILD_opencv_apps=OFF
        -DBUILD_PACKAGE=OFF
        -DBUILD_PERF_TESTS=OFF
        -DBUILD_TESTS=OFF
        -DBUILD_WITH_DEBUG_INFO=ON
        # CMAKE
        -DCMAKE_DISABLE_FIND_PACKAGE_JNI=ON
        ###### customized properties
        ## Options from vcpkg_check_features()
        ${FEATURE_OPTIONS}
        -DWITH_1394=OFF
        -DWITH_IPP=OFF
        -DWITH_LAPACK=OFF
        -DWITH_MSMF=${WITH_MSMF}
        -DWITH_OPENCLAMDBLAS=OFF
        -DWITH_OPENMP=OFF
        -DWITH_PYTHON=${WITH_PYTHON}
        -DWITH_ZLIB=ON
        -WITH_GTK=${WITH_GTK}
        -DWITH_CUBLAS=OFF   # newer libcublas cannot be found by the old cuda cmake script in opencv2, requires a fix
        -DOPENCV_LAPACK_FIND_PACKAGE_ONLY=ON
)

vcpkg_cmake_install()
vcpkg_cmake_config_fixup()
vcpkg_copy_pdbs()

if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
  file(READ "${CURRENT_PACKAGES_DIR}/share/opencv2/OpenCVModules.cmake" OPENCV_MODULES)

  set(DEPS_STRING "include(CMakeFindDependencyMacro)
find_dependency(Threads)")
  if("tiff" IN_LIST FEATURES)
    string(APPEND DEPS_STRING "\nfind_dependency(TIFF)")
  endif()
  if("cuda" IN_LIST FEATURES)
    string(APPEND DEPS_STRING "\nfind_dependency(CUDA)")
  endif()
  if("openexr" IN_LIST FEATURES)
    string(APPEND DEPS_STRING "\nfind_dependency(Imath CONFIG)\nfind_dependency(OpenEXR CONFIG)")
  endif()
  if("png" IN_LIST FEATURES)
    string(APPEND DEPS_STRING "\nfind_dependency(PNG)")
  endif()
  if("qt" IN_LIST FEATURES)
    string(APPEND DEPS_STRING "
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
find_dependency(Qt5 COMPONENTS Core Gui Widgets Test Concurrent)")
    if("opengl" IN_LIST FEATURES)
      string(APPEND DEPS_STRING "
find_dependency(Qt5 COMPONENTS OpenGL)")
    endif()
  endif()

  string(REPLACE "set(CMAKE_IMPORT_FILE_VERSION 1)"
                 "set(CMAKE_IMPORT_FILE_VERSION 1)\n${DEPS_STRING}" OPENCV_MODULES "${OPENCV_MODULES}")

  file(WRITE "${CURRENT_PACKAGES_DIR}/share/opencv2/OpenCVModules.cmake" "${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 "${CURRENT_PACKAGES_DIR}/LICENSE")
file(REMOVE "${CURRENT_PACKAGES_DIR}/debug/LICENSE")

vcpkg_fixup_pkgconfig()

configure_file("${CURRENT_PORT_DIR}/usage.in" "${CURRENT_PACKAGES_DIR}/share/${PORT}/usage" @ONLY)

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