/**
 * 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.
 */

#include "load_platform_info.h"
#include "utils/aicpu_kernel_log.h"
#include "utils/aicpu_kernel_status.h"
#include "type_def.h"

namespace {
struct LoadPlatformInfosArgs {
    uint64_t args{0UL};
    uint64_t args_size{0UL};
};
} // namespace

extern "C" {
__attribute__((visibility("default"))) uint32_t LoadCustPlatform(void* args)
{
    KERNEL_LOG_INFO("Begin loading the custom platform");
    auto load_args = PtrToPtr<void, LoadPlatformInfosArgs>(args);
    const uint64_t input_info = load_args->args;
    const uint32_t info_len = static_cast<uint32_t>(load_args->args_size);
    return aicpu::PlatformRebuild::GetInstance().ProcessPlatformInfoMsg(input_info, info_len);
}

__attribute__((visibility("default"))) int32_t AicpuExtendKernelsLoadPlatformInfo(
    const uint64_t input_info, const uint32_t info_len)
{
    KERNEL_LOG_INFO("Begin loading the custom platform with the extension package kernel.");
    return aicpu::PlatformRebuild::GetInstance().ProcessPlatformInfoMsg(input_info, info_len);
}
}

namespace aicpu {
PlatformRebuild& PlatformRebuild::GetInstance()
{
    static PlatformRebuild instance;
    return instance;
}

int32_t PlatformRebuild::ProcessPlatformInfoMsg(const uint64_t info_args, const uint32_t info_len)
{
    if (info_len != static_cast<uint32_t>(sizeof(PlatformInfoArgs))) {
        KERNEL_LOG_ERROR("The length of args is invalid, input:%u, base:%zu", info_len, sizeof(PlatformInfoArgs));
        return KERNEL_STATUS_PARAM_INVALID;
    }
    const PlatformInfoArgs* const platform_args = PtrToPtr<void, PlatformInfoArgs>(ValueToPtr(info_args));
    KERNEL_CHECK_NULLPTR(platform_args, KERNEL_STATUS_PARAM_INVALID, "info args nullptr");
    if ((platform_args->input_data_info == 0UL) || (platform_args->input_data_len == 0UL) ||
        (platform_args->platform_instance == 0UL)) {
        KERNEL_LOG_ERROR(
            "input args is invalid: input_data_info:0x%x, input_data_len:%llu, platform_instance:0x%x",
            platform_args->input_data_info, platform_args->input_data_len, platform_args->platform_instance);
        return KERNEL_STATUS_PARAM_INVALID;
    }

    KERNEL_LOG_INFO(
        "input param: input_data_info:0x%x, input_data_len:%llu, platform_instance:0x%x",
        platform_args->input_data_info, platform_args->input_data_len, platform_args->platform_instance);
    fe::PlatFormInfos* platform_infos = PtrToPtr<void, fe::PlatFormInfos>(ValueToPtr(platform_args->platform_instance));
    KERNEL_CHECK_NULLPTR(platform_infos, KERNEL_STATUS_PARAM_INVALID, "platform instance nullptr");
    char* input_data_info = PtrToPtr<void, char>(ValueToPtr(platform_args->input_data_info));
    KERNEL_CHECK_FALSE(platform_infos->Init(), KERNEL_STATUS_INNER_ERROR, "Fe platformInfo init failed");
    if (!(platform_infos->LoadFromBuffer(input_data_info, platform_args->input_data_len))) {
        KERNEL_LOG_ERROR("Deserialization failed");
        return KERNEL_STATUS_INNER_ERROR;
    }
    KERNEL_LOG_INFO("The platform info has been loaded successfully.");
    return KERNEL_STATUS_OK;
}
} // namespace aicpu