/*
 * Copyright (c) 2023 Fancy Code.
 * 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 I_STATE_MACHINE_H
#define I_STATE_MACHINE_H
#include "StatusCode.h"
#include <iostream>
#include <memory>
bool CreateStateMachine(void);
bool DestroyStateMachine(void);
class VStateMessage
{
public:
    VStateMessage() = default;
    virtual ~VStateMessage() = default;
};
class VStateMachineData
{
public:
    VStateMachineData() = default;
    virtual ~VStateMachineData() = default;
    virtual int GetMessageName() const = 0;
    virtual const std::shared_ptr<VStateMessage> &GetMessageObj(void) const = 0;
};
class State
{
public:
    explicit State(const std::string &name) : mStateName(name)
    {
    }
    virtual ~State() = default;

public:
    virtual void GoInState() = 0;
    virtual void GoOutState() = 0;
    virtual bool ExecuteStateMsg(VStateMachineData *msg) = 0;
    std::string GetStateName();

private:
    std::string mStateName;
};
class VStateMachineHandle
{
public:
    VStateMachineHandle() = default;
    virtual ~VStateMachineHandle() = default;
    virtual bool InitialStateMachine();
    virtual void StatePlus(State *state, State *upper);
    virtual void SetCurrentState(State *firstState);
    virtual void StartStateMachine();
    virtual void SendMessage(int msgName);
    virtual void StopHandlerThread();
    virtual void SendMessage(int msgName, const std::shared_ptr<VStateMessage> &messageObj);
    virtual void MessageExecutedLater(int msgName, const std::shared_ptr<VStateMessage> &messageObj,
                                      int64_t delayTimeMs);
    virtual void SwitchState(State *targetState);
    virtual void StopTimer(int timerName);
    virtual void DelayMessage(VStateMachineData *msg);
};
class IStateMachine
{
public:
    IStateMachine() = default;
    virtual ~IStateMachine() = default;
    static std::shared_ptr<IStateMachine> &GetInstance(std::shared_ptr<IStateMachine> *impl = nullptr);
    virtual const StatusCode CreateStateMachine(std::shared_ptr<VStateMachineHandle> &stateMachine);
};
#endif