vcpkg_from_github(
  OUT_SOURCE_PATH SOURCE_PATH
  REPO AlexeyAB/darknet
  REF 8a0bf84c19e38214219dbd3345f04ce778426c57
  SHA512 6253d5b498f4f6eba7fc539d5a4b4e163139f4841623f11d84760bcf1ffabe6519f85e98e3d4aeac6846313fea3b98451407134b6b6f5b91137c62d1647109d9
  HEAD_REF master
  PATCHES 
    fix-dependence-getopt.patch
)

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
  FEATURES
    cuda ENABLE_CUDA
    cudnn ENABLE_CUDNN
)

#do not move following features to vcpkg_check_features because they break themselves: one off will turn off the others even if true
set(ENABLE_OPENCV FALSE)
if ("opencv-base" IN_LIST FEATURES OR "opencv2-base" IN_LIST FEATURES OR "opencv3-base" IN_LIST FEATURES OR "opencv-cuda" IN_LIST FEATURES OR "opencv2-cuda" IN_LIST FEATURES OR "opencv3-cuda" IN_LIST FEATURES)
  set(ENABLE_OPENCV TRUE)
endif()

if ("cuda" IN_LIST FEATURES)
  if (NOT VCPKG_CMAKE_SYSTEM_NAME AND NOT ENV{CUDACXX})
    #CMake looks for nvcc only in PATH and CUDACXX env vars for the Ninja generator. Since we filter path on vcpkg and CUDACXX env var is not set by CUDA installer on Windows, CMake cannot find CUDA when using Ninja generator, so we need to manually enlight it if necessary (https://gitlab.kitware.com/cmake/cmake/issues/19173). Otherwise we could just disable Ninja and use MSBuild, but unfortunately CUDA installer does not integrate with some distributions of MSBuild (like the ones inside Build Tools), making CUDA unavailable otherwise in those cases, which we want to avoid
    set(ENV{CUDACXX} "$ENV{CUDA_PATH}/bin/nvcc.exe")
  endif()
endif()

#make sure we don't use any integrated pre-built library nor any unnecessary CMake module
file(REMOVE_RECURSE "${SOURCE_PATH}/3rdparty")
file(REMOVE_RECURSE "${SOURCE_PATH}/cmake/Modules")

vcpkg_cmake_configure(
  SOURCE_PATH "${SOURCE_PATH}"
  DISABLE_PARALLEL_CONFIGURE
  OPTIONS 
    ${FEATURE_OPTIONS}
    -DINSTALL_BIN_DIR:STRING=bin
    -DINSTALL_LIB_DIR:STRING=lib
    -DENABLE_OPENCV:BOOL=${ENABLE_OPENCV}
)

vcpkg_cmake_install()
vcpkg_copy_tools(AUTO_CLEAN TOOL_NAMES darknet uselib)
if ("opencv-cuda" IN_LIST FEATURES OR "opencv3-cuda" IN_LIST FEATURES)
  vcpkg_copy_tools(AUTO_CLEAN TOOL_NAMES uselib_track)
endif()

file(COPY "${SOURCE_PATH}/cfg" DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}")
file(COPY "${SOURCE_PATH}/data" DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}")

if(VCPKG_LIBRARY_LINKAGE STREQUAL static)
  file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/bin" "${CURRENT_PACKAGES_DIR}/debug/bin")
endif()

vcpkg_cmake_config_fixup()

file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")

file(INSTALL "${SOURCE_PATH}/scripts/download_weights.ps1" DESTINATION "${CURRENT_PACKAGES_DIR}/tools/${PORT}/scripts")
message(STATUS "To download weight files, please go to ${CURRENT_INSTALLED_DIR}/tools/${PORT}/scripts and run ./download_weights.ps1")

vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/LICENSE")