vcpkg_download_distfile(ARCHIVE
    URLS "https://archive.apache.org/dist/apr/apr-${VERSION}.tar.bz2"
    FILENAME "apr-${VERSION}.tar.bz2"
    SHA512 d8a7553642da0c81261ac3992536efd9d43ecb9154934ef1a10ae808d6a3ce8198b40433091d3a6d04f61e67c59426fb5276193a37e810ae4bc74a8a10fb651b
)

vcpkg_extract_source_archive(SOURCE_PATH
    ARCHIVE "${ARCHIVE}"
    PATCHES
        unglue.patch
        0100-add-host-tools-dir.diff
)

set(CURRENT_HOST_TOOLS_DIR "${CURRENT_HOST_INSTALLED_DIR}/tools/${PORT}")

set(CROSSCOMPILING_OPTIONS "")
if(VCPKG_CROSSCOMPILING)
    list(APPEND CROSSCOMPILING_OPTIONS
        "-DUNOFFICIAL_APR_HOST_TOOLS_DIR=${CURRENT_HOST_TOOLS_DIR}"
        "-DUNOFFICIAL_APR_HOST_EXECUTABLE_SUFFIX=${VCPKG_HOST_EXECUTABLE_SUFFIX}"
    )
endif()

if (VCPKG_TARGET_IS_WINDOWS)
    vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
        FEATURES
            private-headers APR_INSTALL_PRIVATE_H
    )

    string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "static" APR_BUILD_STATIC)
    string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "dynamic" APR_BUILD_SHARED)

    vcpkg_cmake_configure(
        SOURCE_PATH "${SOURCE_PATH}"
        OPTIONS
            -DAPR_BUILD_STATIC=${APR_BUILD_STATIC}
            -DAPR_BUILD_SHARED=${APR_BUILD_SHARED}
            -DAPR_BUILD_TESTAPR=OFF
            -DINSTALL_PDB=OFF
            -DMIN_WINDOWS_VER=Windows7
            -DAPR_HAVE_IPV6=ON
            ${FEATURE_OPTIONS}
            ${CROSSCOMPILING_OPTIONS}
    )

    vcpkg_cmake_install()
    vcpkg_cmake_config_fixup(CONFIG_PATH "lib/cmake/apr")
    file(
        INSTALL "${CMAKE_CURRENT_LIST_DIR}/unofficial-apr-config.cmake"
        DESTINATION "${CURRENT_PACKAGES_DIR}/share/unofficial-apr"
    )
    # There is no way to suppress installation of the headers in debug builds.
    file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
    vcpkg_copy_tools(TOOL_NAMES gen_test_char AUTO_CLEAN)

    vcpkg_copy_pdbs()

    file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/usage-cmake" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}" RENAME usage)
else()
    # To cross-compile you will need a triplet file that locates the tool chain and sets --host and --cache parameters of "./configure".
    # The ${VCPKG_PLATFORM_TOOLSET}.cache file must have been generated on the targeted host using "./configure -C".
    # For example, to target aarch64-linux-gnu, triplets/aarch64-linux-gnu.cmake should contain (beyond the standard content):
    # set(VCPKG_PLATFORM_TOOLSET aarch64-linux-gnu)
    # set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE ${MY_CROSS_DIR}/cmake/Toolchain-${VCPKG_PLATFORM_TOOLSET}.cmake)
    # set(CONFIGURE_PARAMETER_1 --host=${VCPKG_PLATFORM_TOOLSET})
    # set(CONFIGURE_PARAMETER_2 --cache-file=${MY_CROSS_DIR}/autoconf/${VCPKG_PLATFORM_TOOLSET}.cache)
    if(CONFIGURE_PARAMETER_1)
        message(STATUS "Configuring apr with ${CONFIGURE_PARAMETER_1} ${CONFIGURE_PARAMETER_2} ${CONFIGURE_PARAMETER_3}")
    else()
        message(STATUS "Configuring apr")
    endif()
    set(ENV{CFLAGS} "$ENV{CFLAGS} -Wno-error=implicit-function-declaration")
    vcpkg_configure_make(
        SOURCE_PATH "${SOURCE_PATH}"
        OPTIONS
            "--prefix=${CURRENT_INSTALLED_DIR}"
            "${CONFIGURE_PARAMETER_1}"
            "${CONFIGURE_PARAMETER_2}"
            "${CONFIGURE_PARAMETER_3}"
    )

    vcpkg_install_make()

    if(NOT VCPKG_BUILD_TYPE)
        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/apr-1.pc"
            "-lapr-\${APR_MAJOR_VERSION}" "-lapr-1"
        )
    endif()

    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/lib/pkgconfig/apr-1.pc"
        "-lapr-\${APR_MAJOR_VERSION}" "-lapr-1"
    )
    vcpkg_fixup_pkgconfig(SYSTEM_LIBRARIES pthread rt dl uuid crypt)

    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/bin/apr-1-config" "\"${CURRENT_INSTALLED_DIR}\"" "$(realpath \"`dirname $0`/../../..\")")
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/bin/apr-1-config" "APR_SOURCE_DIR=\"${SOURCE_PATH}\"" "")
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/bin/apr-1-config" "APR_BUILD_DIR=\"${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel\"" "")
    
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/build-1/libtool" "${CURRENT_INSTALLED_DIR}/lib" "" IGNORE_UNCHANGED)
    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/build-1/libtool" "${CURRENT_INSTALLED_DIR}/debug/lib" "" IGNORE_UNCHANGED)

    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/build-1/apr_rules.mk" "${CURRENT_INSTALLED_DIR}" "$(INCLUDE)/..")
    if(NOT VCPKG_BUILD_TYPE)
        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/debug/bin/apr-1-config" "\"${CURRENT_INSTALLED_DIR}/debug\"" "$(realpath \"`dirname $0`/../../../..\")")
        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/debug/bin/apr-1-config" "APR_SOURCE_DIR=\"${SOURCE_PATH}\"" "")
        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/tools/${PORT}/debug/bin/apr-1-config" "APR_BUILD_DIR=\"${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg\"" "")

        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/debug/build-1/libtool" "${CURRENT_INSTALLED_DIR}/lib" "" IGNORE_UNCHANGED)
        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/debug/build-1/libtool" "${CURRENT_INSTALLED_DIR}/debug/lib" "" IGNORE_UNCHANGED)

        vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/debug/build-1/apr_rules.mk" "${CURRENT_INSTALLED_DIR}/debug" "$(INCLUDE)/..")
    endif()
    file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/share")
endif()

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