Reverse Trade Needed of The opposite signal

[Vantho Sokphal]

Please somebody help me on this one.

 I want it close the current order and open a reverse order when an opposite signal appear.

but This EA close the order and no new reverse order.

please give me some advice and some code to correct it.

//+------------------------------------------------------------------+
//|                                                        Test2.mq4 |
//|                        Copyright 2016, MetaQuotes Software Corp. |
//|                                             https://www.mql5.com 
//+------------------------------------------------------------------+
#property copyright "Copyright 2016, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
//+------------------------------------------------------------------+
//| Parameter                                 |
//+------------------------------------------------------------------+
extern string EAName = " Trending Mind";
extern double Lots = 0.1;
extern double TakeProfit = 100;
extern double StopLoss = 30;
extern bool EnterOpenBar = true;
extern bool OppositeClose = true;
extern double MagicNumber = 59483;
extern int Slippage = 8;
int vSlippage;
double ticket, number, vPoint;
bool Result;
int OnInit()
  {if(Digits==3 || Digits==5)
{ vPoint=Point*10; vSlippage=Slippage*10; }
else{ vPoint=Point; vSlippage=Slippage; } 
    return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {   
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
      static int last_trade=0;
      bool    OpenBar=true;
      double ArrowUP = iCustom(NULL,0,"TVA",0,1);
      double ArrowDown = iCustom(NULL,0,"TVA",1,1);
      double Potential = iCustom(NULL,0,"TVA",2,1);
      int OType=-1;
      int Ticket;
      double Price, SL, TP;
      bool CloseBuy=false, CloseSell=false, OpenBuy=false, OpenSell=false;
      for(int Counter=1; Counter<=OrdersTotal(); Counter++)
      {if (OrderSelect(Counter-1,SELECT_BY_POS)==true)
      if (OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber)
      {Ticket=OrderTicket();
      OType =OrderType();
      Price =OrderOpenPrice();
      SL =OrderStopLoss();
      TP =OrderTakeProfit();
      Lots =OrderLots();
   } }
     // Entry Condition    
     if(EnterOpenBar) if(iVolume(NULL,0,0)>1) OpenBar=false;
      {            
  if(ArrowUP == Potential && ArrowDown != Potential &&  OpenBar &&last_trade <= 0)
  { OpenBuy = true;
      last_trade =1 ;
    if (OppositeClose) CloseSell=true;                                 
        }                               
             if(ArrowDown == Potential && ArrowUP != Potential && OpenBar && last_trade >= 0){
                  OpenSell = true;last_trade=-1;
                 if (OppositeClose) CloseBuy=true;                 
                } }                            
        while(true)
      {
      if (OType==0 && CloseBuy==true)    {close (OP_BUY); // Close Buy
         return;
            }if (OType==1 && CloseSell==true)
            { close (OP_SELL); // Close Sell 
            return;} break;     }
      
      while(true)
{
if (OrdersTotalMagicOpen()==0 && OpenBuy==true)
{if(StopLoss>0){SL=Bid - StopLoss*vPoint;}else{SL=0;} if(TakeProfit>0){TP=Bid+TakeProfit*vPoint;}else{TP=0;}
ticket=0;number=0;while(ticket<=0 && number<100){
RefreshRates();ticket = OrderSend(Symbol(),OP_BUY,NormalizeDouble(Lots,Digits), Ask,vSlippage,SL,TP,EAName, MagicNumber, 0, Green);}}
if (OrdersTotalMagicOpen()==0 && OpenSell==true)
{if(StopLoss>0){SL=Ask + StopLoss*vPoint;}else{SL=0;} if(TakeProfit>0){TP=Ask-TakeProfit*vPoint;}else{TP=0;}
ticket=0;number=0;while(ticket<=0 && number<100){
RefreshRates();ticket= OrderSend(Symbol(),OP_SELL, NormalizeDouble(Lots,Digits), Bid,vSlippage,SL,TP, EAName, MagicNumber, 0, Red);
}}break;}    
  }
  
  void close(int type){
  int Counter;
if(OrdersTotal()>0){
for( Counter=OrdersTotal()-1;Counter>=0;Counter--){
 Result = OrderSelect(Counter,SELECT_BY_POS,MODE_TRADES);
if(type==OP_BUY && OrderType()==OP_BUY){
if(OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber) {
RefreshRates(); 
Result = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(Bid,Digits), vSlippage);
} }
if(type==OP_SELL && OrderType()==OP_SELL){
if(OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber) {
RefreshRates(); 
Result = OrderClose(OrderTicket(),OrderLots(),NormalizeDouble(Ask,Digits),vSlippage); 
}}
}}}
int OrdersTotalMagicOpen() {
int l_count_0 = 0;
for (int l_pos_4 = OrdersTotal() - 1; l_pos_4 >= 0; l_pos_4--) {
OrderSelect(l_pos_4, SELECT_BY_POS, MODE_TRADES);
if (OrderSymbol() != Symbol() || OrderMagicNumber() != MagicNumber) continue;
if (OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber)
if (OrderType() == OP_SELL || OrderType() == OP_BUY) l_count_0++;
}
return (l_count_0);
}
//+------------------------------------------------------------------+