cmake_minimum_required(VERSION 3.21)

# Remove CMAKE_ variables from the script call
foreach(i RANGE 0 "${CMAKE_ARGC}")
    unset(CMAKE_ARGV${i})
endforeach()
unset(CMAKE_ARGN)
unset(CMAKE_ARGC)
unset(i)
# These don't make sense in script context
unset(CMAKE_BINARY_DIR)
unset(CMAKE_SOURCE_DIR)
unset(CMAKE_CURRENT_BINARY_DIR)
unset(CMAKE_CURRENT_SOURCE_DIR)
unset(CMAKE_FILES_DIRECTORY)
# Minimum CMake version is forced within vcpkg
unset(CMAKE_MINIMUM_REQUIRED_VERSION)
# CMAKE_VERSION is enough for doing version checks
unset(CMAKE_MAJOR_VERSION)
unset(CMAKE_MINOR_VERSION)
unset(CMAKE_PATCH_VERSION)
unset(CMAKE_TWEAK_VERSION)

set(SCRIPTS "${CMAKE_CURRENT_LIST_DIR}" CACHE PATH "Location to stored scripts")
list(APPEND CMAKE_MODULE_PATH "${SCRIPTS}/cmake")

# Increment this number if we intentionally need to invalidate all binary caches due a change in
# the following scripts: 1
include("${SCRIPTS}/cmake/execute_process.cmake")
include("${SCRIPTS}/cmake/vcpkg_acquire_msys.cmake")
include("${SCRIPTS}/cmake/vcpkg_add_to_path.cmake")
include("${SCRIPTS}/cmake/vcpkg_apply_patches.cmake")
include("${SCRIPTS}/cmake/vcpkg_backup_restore_env_vars.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_cmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_make.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_msbuild.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_ninja.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_nmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_build_qmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_buildpath_length_warning.cmake")
include("${SCRIPTS}/cmake/vcpkg_check_features.cmake")
include("${SCRIPTS}/cmake/vcpkg_check_linkage.cmake")
include("${SCRIPTS}/cmake/vcpkg_clean_executables_in_bin.cmake")
include("${SCRIPTS}/cmake/vcpkg_clean_msbuild.cmake")
include("${SCRIPTS}/cmake/vcpkg_configure_cmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_configure_gn.cmake")
include("${SCRIPTS}/cmake/vcpkg_configure_make.cmake")
include("${SCRIPTS}/cmake/vcpkg_configure_meson.cmake")
include("${SCRIPTS}/cmake/vcpkg_configure_qmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_copy_pdbs.cmake")
include("${SCRIPTS}/cmake/vcpkg_copy_tool_dependencies.cmake")
include("${SCRIPTS}/cmake/vcpkg_copy_tools.cmake")
include("${SCRIPTS}/cmake/vcpkg_download_distfile.cmake")
include("${SCRIPTS}/cmake/vcpkg_download_sourceforge.cmake")
include("${SCRIPTS}/cmake/vcpkg_execute_build_process.cmake")
include("${SCRIPTS}/cmake/vcpkg_execute_required_process.cmake")
include("${SCRIPTS}/cmake/vcpkg_execute_required_process_repeat.cmake")
include("${SCRIPTS}/cmake/vcpkg_extract_archive.cmake")
include("${SCRIPTS}/cmake/vcpkg_extract_source_archive.cmake")
include("${SCRIPTS}/cmake/vcpkg_extract_source_archive_ex.cmake")
include("${SCRIPTS}/cmake/vcpkg_fail_port_install.cmake")
include("${SCRIPTS}/cmake/vcpkg_find_acquire_program.cmake")
include("${SCRIPTS}/cmake/vcpkg_fixup_cmake_targets.cmake")
include("${SCRIPTS}/cmake/vcpkg_fixup_pkgconfig.cmake")
include("${SCRIPTS}/cmake/vcpkg_from_bitbucket.cmake")
include("${SCRIPTS}/cmake/vcpkg_from_git.cmake")
include("${SCRIPTS}/cmake/vcpkg_from_github.cmake")
include("${SCRIPTS}/cmake/vcpkg_from_gitlab.cmake")
include("${SCRIPTS}/cmake/vcpkg_from_sourceforge.cmake")
include("${SCRIPTS}/cmake/vcpkg_get_program_files_platform_bitness.cmake")
include("${SCRIPTS}/cmake/vcpkg_get_windows_sdk.cmake")
include("${SCRIPTS}/cmake/vcpkg_host_path_list.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_cmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_copyright.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_gn.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_make.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_meson.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_msbuild.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_nmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_install_qmake.cmake")
include("${SCRIPTS}/cmake/vcpkg_list.cmake")
include("${SCRIPTS}/cmake/vcpkg_minimum_required.cmake")
include("${SCRIPTS}/cmake/vcpkg_replace_string.cmake")
include("${SCRIPTS}/cmake/vcpkg_test_cmake.cmake")

include("${SCRIPTS}/cmake/z_vcpkg_apply_patches.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_forward_output_variable.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_function_arguments.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_get_cmake_vars.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_prettify_command_line.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_setup_pkgconfig_path.cmake")

include("${SCRIPTS}/cmake/z_vcpkg_fixup_rpath.cmake")
include("${SCRIPTS}/cmake/z_vcpkg_fixup_rpath_macho.cmake")

function(debug_message)
    if(PORT_DEBUG)
        z_vcpkg_function_arguments(ARGS)
        list(JOIN ARGS " " ARG_STRING)
        message(STATUS "[DEBUG] " "${ARG_STRING}")
    endif()
endfunction()
function(z_vcpkg_deprecation_message)
    z_vcpkg_function_arguments(ARGS)
    list(JOIN ARGS " " ARG_STRING)
    message(DEPRECATION "${ARG_STRING}")
endfunction()

option(_VCPKG_PROHIBIT_BACKCOMPAT_FEATURES "Controls whether use of a backcompat only support feature fails the build.")
if (_VCPKG_PROHIBIT_BACKCOMPAT_FEATURES)
    set(Z_VCPKG_BACKCOMPAT_MESSAGE_LEVEL "FATAL_ERROR")
else()
    set(Z_VCPKG_BACKCOMPAT_MESSAGE_LEVEL "WARNING")
endif()

vcpkg_minimum_required(VERSION 2022-10-12)

file(TO_CMAKE_PATH "${BUILDTREES_DIR}" BUILDTREES_DIR)
file(TO_CMAKE_PATH "${PACKAGES_DIR}" PACKAGES_DIR)

set(CURRENT_INSTALLED_DIR "${_VCPKG_INSTALLED_DIR}/${TARGET_TRIPLET}" CACHE PATH "Location to install final packages")

if(PORT)
    set(CURRENT_BUILDTREES_DIR "${BUILDTREES_DIR}/${PORT}")
    set(CURRENT_PACKAGES_DIR "${PACKAGES_DIR}/${PORT}_${TARGET_TRIPLET}")
endif()

if(CMD STREQUAL "BUILD")
    set(CMAKE_TRIPLET_FILE "${TARGET_TRIPLET_FILE}")
    if(NOT EXISTS "${CMAKE_TRIPLET_FILE}")
        message(FATAL_ERROR "Unsupported target triplet. Triplet file does not exist: ${CMAKE_TRIPLET_FILE}")
    endif()

    if(NOT DEFINED CURRENT_PORT_DIR)
        message(FATAL_ERROR "CURRENT_PORT_DIR was not defined")
    endif()
    file(TO_CMAKE_PATH "${CURRENT_PORT_DIR}" CURRENT_PORT_DIR)
    if(NOT EXISTS "${CURRENT_PORT_DIR}")
        message(FATAL_ERROR "Cannot find port: ${PORT}\n  Directory does not exist: ${CURRENT_PORT_DIR}")
    endif()
    if(NOT EXISTS "${CURRENT_PORT_DIR}/portfile.cmake")
        message(FATAL_ERROR "Port is missing portfile: ${CURRENT_PORT_DIR}/portfile.cmake")
    endif()
    if(NOT EXISTS "${CURRENT_PORT_DIR}/CONTROL" AND NOT EXISTS "${CURRENT_PORT_DIR}/vcpkg.json")
        message(FATAL_ERROR "Port is missing control or manifest file: ${CURRENT_PORT_DIR}/{CONTROL,vcpkg.json}")
    endif()

    unset(PACKAGES_DIR)
    unset(BUILDTREES_DIR)

    if(EXISTS "${CURRENT_PACKAGES_DIR}")
        file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}")
        if(EXISTS "${CURRENT_PACKAGES_DIR}")
            message(FATAL_ERROR "Unable to remove directory: ${CURRENT_PACKAGES_DIR}\n  Files are likely in use.")
        endif()
    endif()
    file(MAKE_DIRECTORY "${CURRENT_BUILDTREES_DIR}" "${CURRENT_PACKAGES_DIR}")

    include("${CMAKE_TRIPLET_FILE}")

    set(HOST_TRIPLET "${_HOST_TRIPLET}")
    set(CURRENT_HOST_INSTALLED_DIR "${_VCPKG_INSTALLED_DIR}/${HOST_TRIPLET}" CACHE PATH "Location to install final packages for the host")

    set(TRIPLET_SYSTEM_ARCH "${VCPKG_TARGET_ARCHITECTURE}")
    include("${SCRIPTS}/cmake/vcpkg_common_definitions.cmake")

    function(z_vcpkg_warn_ambiguous_system_variables VARIABLE ACCESS VALUE POS STACK)
        message("${Z_VCPKG_BACKCOMPAT_MESSAGE_LEVEL}" "Unexpected ${ACCESS} on variable ${VARIABLE} in script mode.
This variable name insufficiently expresses whether it refers to the \
target system or to the host system. Use a prefixed variable instead.
- Variables providing information about the host:
  CMAKE_HOST_<SYSTEM>
  VCPKG_HOST_IS_<SYSTEM>
- Variables providing information about the target:
  VCPKG_TARGET_IS_<SYSTEM>
  VCPKG_DETECTED_<VARIABLE> (using vcpkg_cmake_get_vars)
")
    endfunction()
    foreach(var IN ITEMS ANDROID APPLE BSD IOS LINUX MINGW MSVC UNIX WIN32)
        variable_watch("${var}" z_vcpkg_warn_ambiguous_system_variables)
    endforeach()

    if (DEFINED VCPKG_PORT_CONFIGS)
        foreach(VCPKG_PORT_CONFIG IN LISTS VCPKG_PORT_CONFIGS)
            include("${VCPKG_PORT_CONFIG}")
        endforeach()
    endif()

    set(Z_VCPKG_ERROR_LOG_COLLECTION_FILE "${CURRENT_BUILDTREES_DIR}/error-logs-${TARGET_TRIPLET}.txt")
    file(REMOVE "${Z_VCPKG_ERROR_LOG_COLLECTION_FILE}")

    include("${CURRENT_PORT_DIR}/portfile.cmake")
    if(DEFINED PORT)
        # Always fixup RPATH on linux and osx unless explicitly disabled.
        if(VCPKG_FIXUP_ELF_RPATH OR (VCPKG_TARGET_IS_LINUX AND NOT DEFINED VCPKG_FIXUP_ELF_RPATH))
            z_vcpkg_fixup_rpath_in_dir()
        endif()
        if(VCPKG_FIXUP_MACHO_RPATH OR (VCPKG_TARGET_IS_OSX AND NOT DEFINED VCPKG_FIXUP_MACHO_RPATH))
            z_vcpkg_fixup_macho_rpath_in_dir()
        endif()
        include("${SCRIPTS}/build_info.cmake")
    endif()
elseif(CMD STREQUAL "CREATE")
    if(NOT DEFINED PORT_PATH)
        set(PORT_PATH "${VCPKG_ROOT_DIR}/ports/${PORT}")
    endif()
    file(TO_NATIVE_PATH "${PORT_PATH}" NATIVE_PORT_PATH)
    set(PORTFILE_PATH "${PORT_PATH}/portfile.cmake")
    file(TO_NATIVE_PATH "${PORTFILE_PATH}" NATIVE_PORTFILE_PATH)
    set(MANIFEST_PATH "${PORT_PATH}/vcpkg.json")
    file(TO_NATIVE_PATH "${MANIFEST_PATH}" NATIVE_MANIFEST_PATH)

    if(EXISTS "${PORTFILE_PATH}")
        message(FATAL_ERROR "Portfile already exists: '${NATIVE_PORTFILE_PATH}'")
    endif()
    if(NOT FILENAME)
        get_filename_component(FILENAME "${URL}" NAME)
    endif()
    string(REGEX REPLACE "(\\.(zip|gz|tar|tgz|bz2))+\$" "" ROOT_NAME "${FILENAME}")

    set(DOWNLOAD_PATH "${DOWNLOADS}/${FILENAME}")
    file(TO_NATIVE_PATH "${DOWNLOAD_PATH}" NATIVE_DOWNLOAD_PATH)

    if(EXISTS "${DOWNLOAD_PATH}")
        message(STATUS "Using pre-downloaded: ${NATIVE_DOWNLOAD_PATH}")
        message(STATUS "If this is not desired, delete the file and ${NATIVE_PORT_PATH}")
    else()
        message(STATUS "Downloading ${URL} -> ${FILENAME}...")
        file(DOWNLOAD "${URL}" "${DOWNLOAD_PATH}" STATUS download_status)
        list(GET download_status 0 status_code)
        if(NOT "${download_status}" EQUAL "0")
            message(FATAL_ERROR "Downloading ${URL}... Failed. Status: ${download_status}")
        endif()
    endif()
    file(SHA512 "${DOWNLOAD_PATH}" SHA512)

    file(MAKE_DIRECTORY "${PORT_PATH}")
    configure_file("${SCRIPTS}/templates/portfile.in.cmake" "${PORTFILE_PATH}" @ONLY)
    configure_file("${SCRIPTS}/templates/vcpkg.json.in" "${MANIFEST_PATH}" @ONLY)

    message(STATUS "Generated portfile: ${NATIVE_PORTFILE_PATH}")
    message(STATUS "Generated manifest: ${NATIVE_MANIFEST_PATH}")
    message(STATUS "To launch an editor for these new files, run")
    message(STATUS "    .\\vcpkg edit ${PORT}")
endif()