vcpkg_check_linkage(ONLY_STATIC_LIBRARY)

vcpkg_from_github(
    OUT_SOURCE_PATH SOURCE_PATH
    REPO davisking/dlib
    REF v19.21
    SHA512 57133cdcbc5017d324a368ff36a628de55001f1ec0b3ac078b4ad49a63c8c9fb48674617c6a5838ca4e381a6b001fe4aa5a7b3353eb288c58062d2a8fc7b171e
    HEAD_REF master
    PATCHES
        fix-sqlite3-fftw-linkage.patch
        force_finding_packages.patch
        find_blas.patch
)

file(REMOVE_RECURSE ${SOURCE_PATH}/dlib/external/libjpeg)
file(REMOVE_RECURSE ${SOURCE_PATH}/dlib/external/libpng)
file(REMOVE_RECURSE ${SOURCE_PATH}/dlib/external/zlib)

# This fixes static builds; dlib doesn't pull in the needed transitive dependencies
file(READ "${SOURCE_PATH}/dlib/CMakeLists.txt" DLIB_CMAKE)
string(REPLACE "PNG_LIBRARY" "PNG_LIBRARIES" DLIB_CMAKE "${DLIB_CMAKE}")
file(WRITE "${SOURCE_PATH}/dlib/CMakeLists.txt" "${DLIB_CMAKE}")

vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
    FEATURES
        "sqlite3"   DLIB_LINK_WITH_SQLITE3
        "fftw3"     DLIB_USE_FFTW
        "cuda"      DLIB_USE_CUDA
)

vcpkg_configure_cmake(
    SOURCE_PATH ${SOURCE_PATH}
    PREFER_NINJA
    OPTIONS
        ${FEATURE_OPTIONS}
        -DDLIB_PNG_SUPPORT=ON
        -DDLIB_JPEG_SUPPORT=ON
        -DDLIB_USE_BLAS=ON
        -DDLIB_USE_LAPACK=ON
        -DDLIB_GIF_SUPPORT=OFF
        -DDLIB_USE_MKL_FFT=OFF
        -DCMAKE_DEBUG_POSTFIX=d
    OPTIONS_DEBUG
        -DDLIB_ENABLE_ASSERTS=ON
        #-DDLIB_ENABLE_STACK_TRACE=ON
)

vcpkg_install_cmake()

vcpkg_fixup_cmake_targets(CONFIG_PATH lib/cmake/dlib)

# There is no way to suppress installation of the headers and resource files in debug build.
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)

# Remove other files not required in package
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/all)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/appveyor)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/test)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/travis)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_neon)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_cudnn)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_cuda)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_cpp11)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_avx)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_sse4)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_libjpeg)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/cmake_utils/test_for_libpng)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/include/dlib/external/libpng/arm)

# Dlib encodes debug/release in its config.h. Patch it to respond to the NDEBUG macro instead.
file(READ ${CURRENT_PACKAGES_DIR}/include/dlib/config.h _contents)
string(REPLACE "/* #undef ENABLE_ASSERTS */" "#if defined(_DEBUG)\n#define ENABLE_ASSERTS\n#endif" _contents ${_contents})
string(REPLACE "#define DLIB_DISABLE_ASSERTS" "#if !defined(_DEBUG)\n#define DLIB_DISABLE_ASSERTS\n#endif" _contents ${_contents})
file(WRITE ${CURRENT_PACKAGES_DIR}/include/dlib/config.h "${_contents}")

# Handle copyright
file(INSTALL ${SOURCE_PATH}/dlib/LICENSE.txt DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/share/doc)