/// 状态类

#ifndef RUState_h
#define RUState_h

#include "RUDefine.h"
#include "RUStateDelegate.h"

NS_RU_BEGIN

enum class kStateType{
    NORMAL = 0,   //普通状态
    META    //分层状态（状态本身就是个状态机）
};

class State
{
public:
    State() = default;
    ~State() = default;
    static State* create(const std::string& stateName,
                         const std::vector<std::string>& fullStatePath,
                         kStateType stateType,
                         const std::vector<StateActInfo>& entryActInfos,
                         const std::vector<StateActInfo>& idleActInfos,
                         const std::vector<StateActInfo>& exitActInfos,
                         const std::string & stateDelegateKey,
                         void* userObj4StateDelegate);

    
    virtual const std::string& getStateName();
    
    /// 获取多层嵌套的完整stateName路径（距顶层状态机的状态嵌套）,以数组的形式返回
    virtual const std::vector<std::string>& getFullStatePath();
    
    /// 对于家装而言只有最原子普通状态会绑定block（执行动作绑定到block上）
    virtual std::vector<std::string> getBindingStatePath4Blocks();
    
    virtual kStateType getStateType();
    
    /// 状态进入
    virtual void entry(const std::function<void(void)>& entryCb = nullptr);
    /// 状态待机
    virtual void idle(const std::function<void(void)>& idleCb = nullptr);
    /// 状态退出
    virtual void exit(const std::function<void(void)>& exitCb = nullptr);
    
    virtual void beforeSwitch(std::vector<StateActInfo> actInfos, StateActInfo evt, std::function<void(void)> actsFinishCb = nullptr);
    virtual void afterSwitch(std::vector<StateActInfo> actInfos, StateActInfo evt, std::function<void(void)> actsFinishCb = nullptr);
    
    virtual const std::vector<StateActInfo>&  getIdleActInfos();
    /// debug输出结构信息
    virtual void debugInfo();
    
    /// 设置缩进
    /// @param indent 缩进
    virtual void setIndent4Dbg(const std::string& indent);
    
protected:
    void _initData(const std::string& stateName,
                   const std::vector<std::string>& fullStatePath,
                   kStateType stateType,
                   const std::vector<StateActInfo>& entryActInfos,
                   const std::vector<StateActInfo>& idleActInfos,
                   const std::vector<StateActInfo>& exitActInfos,
                   const std::string& stateDelegateKey,
                   void* userObj4StateDelegate);
    void _initStateDelegate(const std::string& stateDelegateKey, void* userObj4StateDelegate);
    
    /// debug日志专用
    std::string _getFullStatePathStr4Debug();
protected:
    std::string _stateName;
    std::vector<std::string> _fullStatePath;  //（多层嵌套的完整stateName链）
    kStateType _stateType = kStateType::NORMAL;
    std::vector<StateActInfo> _entryActInfos;
    std::vector<StateActInfo> _idleActInfos;
    std::vector<StateActInfo> _exitActInfos;
    std::string _stateDelegateKey;
    StateDelegate* _stateDelegate = nullptr;
    std::map<std::string, std::string> _eventParams;
    std::string _indent;
};

NS_RU_END

#endif /* RUState_h */