/*

 * Copyright (c) 2021 Huawei Device Co., Ltd.

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifndef USCRIPT_INSTRUCTION_HELPER_H

#define USCRIPT_INSTRUCTION_HELPER_H



#include <unordered_map>

#include "script_instruction.h"

#include "script_manager_impl.h"

#include "script_utils.h"



namespace Uscript {

class ScriptInstructionHelper {

public:

    explicit ScriptInstructionHelper(ScriptManagerImpl *impl) : scriptManager_(impl) {}



    ~ScriptInstructionHelper();



    int32_t RegisterInstructions() const;



    bool IsReservedInstruction(const std::string &scriptName) const;



    int32_t AddScript(const std::string &scriptName, int32_t priority) const;



    int32_t AddInstruction(const std::string &instrName, const UScriptInstructionPtr instr);



    int32_t RegisterUserInstruction(const std::string &libName, const std::string &instrName);



    int32_t RegisterUserInstruction(const std::string &instrName, Uscript::UScriptInstructionFactory *factory);



    static ScriptInstructionHelper* GetBasicInstructionHelper(ScriptManagerImpl *impl = nullptr);



    static void ReleaseBasicInstructionHelper();

private:

    int32_t RegisterAddInstruction(const Uscript::UScriptInstructionFactoryPtr factory,

    	const std::string &instrName);



    void* instrLib_ = nullptr;

    std::string userInstrLibName_ {};

    ScriptManagerImpl* scriptManager_ {};

};

} // namespace Uscript

#endif // USCRIPT_INSTRUCTION_HELPER_H