/**

 * 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.

 */



#ifndef DGW_STRATEGY_MANAGER_H

#define DGW_STRATEGY_MANAGER_H



#include <map>

#include "common/type_def.h"

#include "dgw_client.h"

#include "strategy.h"



namespace dgw {



class StrategyManager {

public:

    explicit StrategyManager() = default;

    ~StrategyManager() = default;



    StrategyManager(const StrategyManager &) = delete;

    StrategyManager(const StrategyManager &&) = delete;

    StrategyManager &operator = (const StrategyManager &) = delete;

    StrategyManager &operator = (StrategyManager &&) = delete;



public:

    static StrategyManager &GetInstance();

    void RegisterStrategy(const bqs::GroupPolicy policy,

                          Strategy*  strategy,

                          const char_t * const strategyDesc);

    Strategy *GetStrategy(const bqs::GroupPolicy policy) const;

    const std::string &GetStrategyDesc(const bqs::GroupPolicy policy) const;



private:

    std::map<bqs::GroupPolicy, Strategy*> strategy_;

    std::map<bqs::GroupPolicy, std::string> strategyDesc_;

};



// strategy register

class StrategyRegister {

public:

    StrategyRegister(const bqs::GroupPolicy policy, Strategy * strategy, const char_t * const strategyDesc)

    {

        StrategyManager::GetInstance().RegisterStrategy(policy, strategy, strategyDesc);

    }



    ~StrategyRegister() = default;

    StrategyRegister(const StrategyRegister &) = delete;

    StrategyRegister(const StrategyRegister &&) = delete;

    StrategyRegister &operator = (const StrategyRegister &) = delete;

    StrategyRegister &operator = (StrategyRegister &&) = delete;

};



#define REGISTER_STRATEGY(policy, strategy)       \

    strategy g_##strategy;                        \

    StrategyRegister g_##strategy##_register(bqs::GroupPolicy::policy, &g_##strategy, #policy)

}

#endif