# -----------------------------------------------------------------------------------------------------------
# Copyright (c) 2025 Huawei Technologies Co., Ltd.
# This program is free software, you can redistribute it and/or modify it under the terms and conditions of
# CANN Open Software License Agreement Version 2.0 (the "License").
# Please refer to the License for details. You may not use this file except in compliance with the License.
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
# See LICENSE in the root of the software repository for the full text of the License.
# -----------------------------------------------------------------------------------------------------------

set(_FUNC_CMAKE_DIR "${CMAKE_CURRENT_LIST_DIR}")
set(_ROOT_DIR "${_FUNC_CMAKE_DIR}/..")

function(protobuf_generate comp c_var h_var)
    if(NOT ARGN)
        message(SEND_ERROR "Error: protobuf_generate() called without any proto files")
        return()
    endif()
    set(${c_var})
    set(${h_var})
    set(_add_target FALSE)

    if (BUILD_WITH_INSTALLED_DEPENDENCY_CANN_PKG)
        set(_protoc_grogam "host_protoc")
    else()
        set(_protoc_grogam ${PROTOC_PROGRAM})
    endif()

    set(extra_option "")
    foreach(arg ${ARGN})
        if ("${arg}" MATCHES "--proto_path")
            set(extra_option ${arg})
        endif()
    endforeach()



    foreach(file ${ARGN})
        if("${file}" STREQUAL "TARGET")
            set(_add_target TRUE)
            continue()
        endif()

        if ("${file}" MATCHES "--proto_path")
            continue()
        endif()

        get_filename_component(abs_file ${file} ABSOLUTE)
        get_filename_component(file_name ${file} NAME_WE)
        get_filename_component(file_dir ${abs_file} PATH)
        get_filename_component(parent_subdir ${file_dir} NAME)

        if("${parent_subdir}" STREQUAL "proto")
            set(proto_output_path ${CMAKE_BINARY_DIR}/proto/${comp}/proto)
        else()
            set(proto_output_path ${CMAKE_BINARY_DIR}/proto/${comp}/proto/${parent_subdir})
        endif()
        list(APPEND ${c_var} "${proto_output_path}/${file_name}.pb.cc")
        list(APPEND ${h_var} "${proto_output_path}/${file_name}.pb.h")

        add_custom_command(
                OUTPUT "${proto_output_path}/${file_name}.pb.cc" "${proto_output_path}/${file_name}.pb.h"
                WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
                COMMAND ${CMAKE_COMMAND} -E make_directory "${proto_output_path}"
                COMMAND ${CMAKE_COMMAND} -E echo "generate proto cpp_out ${comp} by ${abs_file}"
                COMMAND ${_protoc_grogam} -I${file_dir} ${extra_option} --cpp_out=${proto_output_path} ${abs_file}
                DEPENDS ${abs_file} ${_protoc_grogam}
                COMMENT "Running C++ protocol buffer compiler on ${file}" VERBATIM )
    endforeach()

    if(_add_target)
        add_custom_target(
                ${comp} DEPENDS ${${c_var}} ${${h_var}}
        )
    endif()

    set_source_files_properties(${${c_var}} ${${h_var}} PROPERTIES GENERATED TRUE)
    set(${c_var} ${${c_var}} PARENT_SCOPE)
    set(${h_var} ${${h_var}} PARENT_SCOPE)
endfunction()

macro(install_package)
    set(file_count 1)
    set(directory_count 1)
    foreach(arg ${ARGN})
        if (arg STREQUAL "PACKAGE")
            set (key PKG_NAME)
        elseif (arg STREQUAL "TARGETS")
            set (key TARGET_LIST)
        elseif (arg STREQUAL "FILES")
            set (key ${arg}_${file_count})
            set (prekey "FILES")
        elseif (arg STREQUAL "DIRECTORY")
            set (key ${arg}_${directory_count})
            set (prekey "DIRECTORY")
        elseif (arg STREQUAL "DESTINATION")
            if (prekey STREQUAL "FILES")
                set (key ${prekey}_${arg}_${file_count})
                math(EXPR file_count "${file_count}+1")
            else ()
                set (key ${prekey}_${arg}_${directory_count})
                math(EXPR directory_count "${directory_count}+1")
            endif()
        else ()
            list(APPEND ${key} ${arg})
        endif()
    endforeach()
    math(EXPR file_count "${file_count}-1")
    math(EXPR directory_count "${directory_count}-1")

    install(TARGETS ${TARGET_LIST}
        EXPORT ${PKG_NAME}-targets
        LIBRARY DESTINATION ${INSTALL_LIBRARY_DIR} OPTIONAL COMPONENT opensdk
        ARCHIVE DESTINATION ${INSTALL_LIBRARY_DIR} OPTIONAL COMPONENT opensdk
        RUNTIME DESTINATION ${INSTALL_RUNTIME_DIR} OPTIONAL COMPONENT opensdk
    )

    if (file_count GREATER 0)
        foreach(i RANGE 1 ${file_count})
            install(FILES ${FILES_${i}} DESTINATION ${FILES_DESTINATION_${i}} COMPONENT opensdk EXCLUDE_FROM_ALL)
        endforeach()
    endif()

    if (directory_count GREATER 0)
        foreach(i RANGE 1 ${directory_count})
            install(DIRECTORY ${DIRECTORY_${i}} DESTINATION ${DIRECTORY_DESTINATION_${i}}
                COMPONENT opensdk EXCLUDE_FROM_ALL
                FILES_MATCHING 
                PATTERN "*.h"
                PATTERN "*.cppm")
        endforeach()
    endif()

    if (PACKAGE STREQUAL "opensdk")
        install(EXPORT ${PKG_NAME}-targets DESTINATION ${INSTALL_CONFIG_DIR}
            FILE ${PKG_NAME}-targets.cmake COMPONENT opensdk EXCLUDE_FROM_ALL
        )
        configure_package_config_file(${RUNTIME_DIR}/cmake/config/pkg_config_template.cmake.in
            ${CMAKE_CURRENT_BINARY_DIR}/${PKG_NAME}-config.cmake
            INSTALL_DESTINATION ${INSTALL_CONFIG_DIR}
            PATH_VARS INSTALL_BASE_DIR INSTALL_INCLUDE_DIR INSTALL_LIBRARY_DIR INSTALL_RUNTIME_DIR INSTALL_CONFIG_DIR
            INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}
        )
        install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PKG_NAME}-config.cmake
            DESTINATION ${INSTALL_CONFIG_DIR} COMPONENT opensdk EXCLUDE_FROM_ALL
        )
    endif()

    unset(PKG_NAME)
    unset(TARGET_LIST)
    if (file_count GREATER 0)
        foreach(i RANGE 1 ${file_count})
            unset(FILES_${i})
            unset(FILES_DESTINATION_${i})
        endforeach()
    endif()
    if (directory_count GREATER 0)
        foreach(i RANGE 1 ${directory_count})
            unset(DIRECTORY_${i})
            unset(DIRECTORY_DESTINATION_${i})
        endforeach()
    endif()
endmacro(install_package)

# =============================================================================
# Function: pack_targets_and_files
#
# Packs targets and/or files into a flat tar.gz archive (no directory structure).
# Optionally generates a SHA256 manifest file and includes it in the archive.
#
# Usage:
#   pack_targets_and_files(
#       [OUTPUT_TARGET <output_target>]
#       OUTPUT <output.tar.gz>           # e.g., "cann-tsch-compat.tar.gz"
#       [TARGETS target1 [target2 ...]]
#       [FILES file1 [file2 ...]]
#       [MANIFEST <manifest_filename>]   # e.g., "aicpu_compat_bin_hash.cfg"
#   )
#
# Examples:
#   # With manifest
#   pack_targets_and_files(
#       OUTPUT cann-tsch-compat.tar.gz
#       TARGETS app server
#       FILES "LICENSE" "config/default.json"
#       MANIFEST "aicpu_compat_bin_hash.cfg"
#   )
#
#   # Without manifest
#   pack_targets_and_files(
#       OUTPUT cann-tsch-compat.tar.gz
#       TARGETS app
#       FILES "README.md"
#   )
# =============================================================================
function(pack_targets_and_files)
    cmake_parse_arguments(ARG
        ""
        "OUTPUT;MANIFEST;OUTPUT_TARGET"
        "TARGETS;FILES"
        ${ARGN}
    )

    # --- Validation ---
    if(NOT ARG_OUTPUT)
        message(FATAL_ERROR "[pack_targets_and_files] OUTPUT is required")
    endif()

    if(NOT IS_ABSOLUTE "${ARG_OUTPUT}")
        set(ARG_OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${ARG_OUTPUT}")
    endif()

    if(NOT ARG_OUTPUT_TARGET)
        message(FATAL_ERROR "[pack_targets_and_files] OUTPUT_TARGET is required")
    endif()

    # Generate safe target name
    get_filename_component(tar_basename "${ARG_OUTPUT}" NAME_WE)
    string(MAKE_C_IDENTIFIER "pack_${tar_basename}" safe_name)
    set(staging_dir "${CMAKE_CURRENT_BINARY_DIR}/_${safe_name}_stage")

    # --- Collect all source items (as generator expressions) ---
    set(src_items "")
    foreach(tgt IN LISTS ARG_TARGETS)
        if(NOT TARGET ${tgt})
            message(FATAL_ERROR "[pack_targets_and_files] Target '${tgt}' does not exist")
        endif()

        get_target_property(type ${tgt} TYPE)
        if(type MATCHES "^(EXECUTABLE|SHARED_LIBRARY|STATIC_LIBRARY)$")
            list(APPEND src_items "$<TARGET_FILE:${tgt}>")
        endif()
    endforeach()
    list(APPEND src_items ${ARG_FILES})

    if(NOT src_items)
        message(FATAL_ERROR "[pack_targets_and_files] No targets or files specified to pack")
    endif()

    set(manifest_arg "")
    if(ARG_MANIFEST)
        if("${ARG_MANIFEST}" STREQUAL "")
            message(FATAL_ERROR "[pack] MANIFEST filename cannot be empty")
        endif()
        if(IS_ABSOLUTE "${ARG_MANIFEST}")
            message(FATAL_ERROR "[pack] MANIFEST must be relative (e.g., 'sha256sums.cfg')")
        endif()
        set(manifest_arg -D_MANIFEST_FILE=${staging_dir}/${ARG_MANIFEST})
    endif()

    add_custom_command(
        OUTPUT ${staging_dir}
        COMMAND ${CMAKE_COMMAND} -E make_directory "${staging_dir}"
        VERBATIM
    )

    add_custom_command(
        OUTPUT "${ARG_OUTPUT}"
        COMMAND ${CMAKE_COMMAND}
            -D _STAGING_DIR=${staging_dir}
            ${manifest_arg}
            -D "_ITEMS=$<JOIN:${src_items},;>"
            -P "${_FUNC_CMAKE_DIR}/_pack_stage.cmake"
        COMMAND tar "czf" "${ARG_OUTPUT}" .
                "--mode=750"
        WORKING_DIRECTORY ${staging_dir}
        DEPENDS ${ARG_TARGETS} ${staging_dir}
        COMMENT "Packing with ${ARG_OUTPUT}"
        VERBATIM
    )

    add_custom_target(${ARG_OUTPUT_TARGET} ALL DEPENDS "${ARG_OUTPUT}")
endfunction()

# sign_file.cmake
# =============================================================================
# Function: sign_file
#
# Signs a file and places signature in a standard directory.
#
# Usage:
#   sign_file(
#       [OUTPUT_TARGET <target_name>]
#       INPUT <input_file>
#       SCRIPT <sign_script>
#       [SCRIPT_ARGS ...]
#       [RESULT_VAR <output_var>]   # ← returns generated sig path
#       [DEPENDS ...]
#       [WORKING_DIRECTORY ...]
#   )
# =============================================================================
function(sign_file)
    cmake_parse_arguments(
        ARG
        ""
        "OUTPUT_TARGET;INPUT;CONFIG;RESULT_VAR"
        "SCRIPT_ARGS;DEPENDS"
        ${ARGN}
    )

    # --- Validation ---
    if(DEFINED CUSTOM_SIGN_SCRIPT AND NOT CUSTOM_SIGN_SCRIPT STREQUAL "")
        set(SIGN_SCRIPT ${CUSTOM_SIGN_SCRIPT})
    else()
        set(SIGN_SCRIPT)
    endif()

    if(ENABLE_SIGN)
        set(sign_flag "true")
    else()
        set(sign_flag "false")
    endif()

    foreach(var INPUT CONFIG RESULT_VAR)
        if(NOT ARG_${var})
            message(FATAL_ERROR "[sign_file] Missing required: ${var}")
        endif()
    endforeach()

    if(NOT EXISTS "${ARG_CONFIG}")
        message(FATAL_ERROR "[sign_file] Sign config not found: ${ARG_CONFIG}")
    endif()

    # Normalize input
    if(NOT IS_ABSOLUTE "${ARG_INPUT}")
        set(ARG_INPUT "${CMAKE_CURRENT_BINARY_DIR}/${ARG_INPUT}")
    endif()

    # Auto output path: ${CMAKE_CURRENT_BINARY_DIR}/signatures
    set(signatures_dir "${CMAKE_CURRENT_BINARY_DIR}/signatures")
    get_filename_component(input_name "${ARG_INPUT}" NAME)
    set(output_sig "${signatures_dir}/${input_name}")

    if(EXISTS "${SIGN_SCRIPT}")
        get_filename_component(EXT ${SIGN_SCRIPT} EXT) # 获取文件扩展名

        if (${EXT} STREQUAL ".sh")
            set(sign_cmd bash ${SIGN_SCRIPT} ${output_sig} ${ARG_CONFIG} ${sign_flag})
        elseif(${EXT} STREQUAL ".py")
            set(add_header ${_ROOT_DIR}/scripts/sign/add_header_sign.py)
            set(sign_builder ${_ROOT_DIR}/scripts/sign/community_sign_build.py)
            message(STATUS "Detected +++VERSION_INFO:${VERSION_INFO}, _ROOT_DIR:${_ROOT_DIR}")
            set(sign_cmd python3 ${add_header} ${signatures_dir} ${sign_flag} --bios_check_cfg=${ARG_CONFIG} --sign_script=${sign_builder} --version=${VERSION_INFO})
        endif()
    else()
        set(sign_cmd )
    endif()

    # Ensure dir exists
    file(MAKE_DIRECTORY "${signatures_dir}")

    # Target name
    get_filename_component(sign_basename "${ARG_INPUT}" NAME_WE)
    string(MAKE_C_IDENTIFIER "${sign_basename}" safe_name)

    if(ARG_OUTPUT_TARGET)
        set(sign_target "${ARG_OUTPUT_TARGET}")
    else()
        set(sign_target "sign_${safe_name}")
    endif()

    add_custom_command(
        OUTPUT "${output_sig}"
        COMMAND ${CMAKE_COMMAND} -E make_directory ${signatures_dir}
        COMMAND ${CMAKE_COMMAND} -E copy ${ARG_INPUT} ${output_sig}
        COMMAND ${sign_cmd}
        DEPENDS "${ARG_INPUT}" "${SIGN_SCRIPT}" ${ARG_DEPENDS} ${ARG_CONFIG}
        COMMENT "Signing: ${ARG_INPUT} → ${output_sig}"
        VERBATIM
    )

    add_custom_target(${sign_target} ALL DEPENDS "${output_sig}")

    # Return path via RESULT_VAR
    if(ARG_RESULT_VAR)
        set(${ARG_RESULT_VAR} "${output_sig}" PARENT_SCOPE)
    endif()
endfunction()