/// 状态代理类

#ifndef RUStateDelegate_h
#define RUStateDelegate_h

#include "RUDefine.h"

NS_RU_BEGIN


//状态机动作信息
typedef struct _StateActInfo
{
    std::string actType = "";
    std::map<std::string, std::string> actParams;
} StateActInfo;

class State;

class StateDelegate
{
public:
    StateDelegate() = default;
    ~StateDelegate() = default;
    virtual void setUserObject(void *userObject);
    virtual void* getUserObject();
    
    virtual void entry(State* state, const std::vector<StateActInfo>& stateActInfo, std::function<void(void)> actFinishCb = nullptr);
    virtual void idle(State* state, const std::vector<StateActInfo>& stateActInfo, std::function<void(void)> actFinishCb = nullptr);
    virtual void exit(State* state, const std::vector<StateActInfo>& stateActInfo, std::function<void(void)> actFinishCb = nullptr);
    
    virtual void beforeSwitch(State* state, const std::vector<StateActInfo>& stateActInfo, StateActInfo evt, std::function<void(void)> actFinishCb = nullptr);
    virtual void afterSwitch(State* state, const std::vector<StateActInfo>& stateActInfo, StateActInfo evt, std::function<void(void)> actFinishCb = nullptr);
    
protected:
    /// 执行单个状态动作
    /// @param state 状态
    /// @param stateActInfo 待执行的动作
    virtual void execStateAct(State* state,
                              const StateActInfo* stateActInfo,
                              const std::map<string, string>& eventParams,
                              const std::function<void(void)>& actFinishCb = nullptr);
    
private:
    /// 执行一系列的状态动作
    /// @param state 状态
    /// @param stateActsInfo 待执行的动作列表
    void execStateActList(State* state,
                          const std::vector<StateActInfo>& stateActsInfo,
                          const std::function<void(void)>& actFinishCb = nullptr);
    void execStateActList(State* state,
                          const std::vector<StateActInfo>& stateActsInfo,
                          const std::map<string, string>& eventParams,
                          const std::function<void(void)>& actFinishCb = nullptr);
    void execStateActListRecursively(State* state,
                          const std::vector<StateActInfo>& stateActsInfo,
                          const std::function<void(void)>& actFinishCb = nullptr);
    void execStateActListRecursively(State* state,
                          const std::vector<StateActInfo>& stateActsInfo,
                          const std::map<string, string>& eventParams,
                          const std::function<void(void)>& actFinishCb = nullptr);
    
    
private:
    void *_userObject = nullptr;
};

NS_RU_END

#endif /* RUStateDelegate_h */