#include <stdio.h>
#include <stdlib.h>

#include "parentFSM.h"
#include "FSM_protected.h"

#define     DEFAULT_STATE       Idle

typedef struct _ParentFSM
{   
    FSM base;
}ParentFSM;

typedef enum _State{
    Idle,
    A,
    B,
    C,

    Count_State,
}State;

typedef enum _Event{
    Idle_Event,
    Start,
    A2B,
    B2A,
    B2C,
    C2A,

    Count_Event,
}Event;

const static char *stateStr[] = {
    "Idle",
    "A",
    "B",
    "C",
};

const static char *eventStr[] = {
    "Idle",
    "Start",
    "A2B",
    "B2A",
    "B2C",
    "C2A",
};


State StartHandler(){
    FSM_LOG(" start ");
    return A;
}

State A2BHandler(){
    FSM_LOG(" A2B ");
    return B;
}

State B2AHandler(){
    FSM_LOG(" B2A ");
    return A;
}

State B2CHandler(){
    FSM_LOG(" B2C ");
    return C;
}

State C2AHandler(){
    FSM_LOG(" C2A ");
    return A;
}


void A_enterAction(){
    FSM_LOG(" enterA ");
}
void A_duringAction(){
    FSM_LOG(" duringA ");
}
void A_exitAction(){
    FSM_LOG(" exitA ");
}

void B_enterAction(void *data, FSM **childFSM){
    FSM_LOG(" enterB ");
    
    FSM *cFSM = childFSM[0];
    cFSM->vtbl.step(cFSM);
}
void B_duringAction(void *data, FSM **childFSM){
    FSM_LOG(" duringB ");

    FSM *cFSM = childFSM[0];
    cFSM->vtbl.step(cFSM);
}
void B_exitAction(void *data, FSM **childFSM){
    FSM *cFSM = childFSM[0];
    cFSM->vtbl.reset(cFSM);

    FSM_LOG(" exitB ");
}


void C_enterAction(){
    FSM_LOG(" enterC ");
}
void C_duringAction(){
    FSM_LOG(" duringC ");
}
void C_exitAction(){
    FSM_LOG(" exitC ");
}



static void setupHandler(FSMHandler* fcns){

    addStateActionFcn(during, A);
    addStateActionFcn(during, B);
    addStateActionFcn(during, C);
    addStateActionFcn(enter, A);
    addStateActionFcn(enter, B);
    addStateActionFcn(enter, C);
    addStateActionFcn(exit, A);
    addStateActionFcn(exit, B);
    addStateActionFcn(exit, C);

    addTransitionHandler(Idle, Start);
    addTransitionHandler(A, A2B);
    addTransitionHandler(B, B2A);
    addTransitionHandler(B, B2C);
    addTransitionHandler(C, C2A);
}



/* 
    用户自定义事件选择逻辑—————————————————begin 
*/
Event peventArr[20] = {
    Idle_Event,
    Start,
    A2B,
    Idle_Event,
    Idle_Event,
    Idle_Event,
    Idle_Event,
    Idle_Event,
    B2C,
    C2A,
    A2B,
    B2A,
};

static Event selectEvent(ParentFSMData *data){
    return peventArr[data->arrindex];
}
/* 
    用户自定义事件选择逻辑————————end
*/

static void printFSM(ParentFSM* pFSM){
    FSM_LOG("\tParentFSM: ");

    FSM_LOG("当前状态:%s, 当前事件:%s, 动作：", stateStr[pFSM->base.privateVars.curState], eventStr[pFSM->base.privateVars.curEvent]);
}


static void step(ParentFSM* pFSM){
    printFSM(pFSM);
    stepBaseFSM(BASE_FSM(pFSM));
}

static void reset(ParentFSM* pFSM){
    resetBaseFSM(BASE_FSM(pFSM));
    FSM_LOG(" ParentFSM-reset");
}

static void initData(ParentFSM *pFSM){
    ParentFSMData *data = (ParentFSMData *)malloc(sizeof(ParentFSMData));
    data->arrindex = 0;

    pFSM->base.data = data;
}

static void initDataLoader(ParentFSM *pFSM){   // 必须重新实现
    pFSM->base.privateVars.preloader.in = malloc(sizeof(ParentFSMData));
    pFSM->base.privateVars.preloader.preloadSize = sizeof(ParentFSMData);
}


ParentFSM *createParentFSM(){
  
    ParentFSM *pFSM;
    pFSM = (ParentFSM *)newBaseFSM(Count_State, Count_Event, DEFAULT_STATE);

    pFSM->base.vtbl.step = step;
    pFSM->base.vtbl.selectNextState = selectEvent;
    pFSM->base.vtbl.initData = initData;
    pFSM->base.vtbl.setupHandler = setupHandler;
    pFSM->base.vtbl.initDataLoader = initDataLoader;
    
    constructFSM((FSM *)pFSM);
    return pFSM;
}