//+------------------------------------------------------------------+
//|                                        Fiat147-BovespaWINFUT.mq5 |
//|                                                        marcosptf |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
/*****************************************
* robo Fiat147 para Clear Bovespa WINFUT 
*
* este eh o primeiro robo nosso criado para ser executado em conta demo da clear
* que possue 6 estrategias prontas do codigo de exemplo do MT5 que testamos
* e teve um resultado razoavel no backtest e estao parametrizados na planilha;
* entao com base nos testes realizados estamos agora criando este robo Fiat147
* justamente com este nome por ser o primeiro, o piloto, para que possamos 
* codar/executar/testar/observar/melhorar
* 
*
* estas sao as estrategias que iremos implementar nesta versao:
* DarkCloudPiercingLine-RSI
* DarkCloudPiercingLine-CCI
* BullishBearish-Engulfing-Stoch
* BullishBearish-Engulfing-RSI
* BullishBearish-Engulfing-MFI
* BullishBearish-Engulfing-CCI
* 
*/

#property copyright "Copyright 2024, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

#include <Trade\Trade.mqh>
#include <Trade\SymbolInfo.mqh>

//--- service objects
CTrade trade;
MqlRates rates[];
CTrade      ExtTrade;
CSymbolInfo ExtSymbolInfo;

#define SIGNAL_BUY    1             // Buy signal
#define SIGNAL_NOT    0             // no trading signal
#define SIGNAL_SELL  -1             // Sell signal
#define CLOSE_LONG    2             // signal to close Long
#define CLOSE_SHORT  -2             // signal to close Short
#define TAMANHO_LOTE  2

//--- global variables
int    ExtAvgBodyPeriod,            // average candlestick calculation period
       ExtSignalOpen     =0,        // Buy/Sell signal
       ExtSignalClose    =0,        // signal to close a position
       ExtIndicatorHandle=INVALID_HANDLE,
       ExtTrendMAHandle  =INVALID_HANDLE;

bool   ExtPatternDetected=false,    // pattern detected
       ExtConfirmed      =false,    // pattern confirmed
       ExtCloseByTime    =true,     // requires closing by time 
       ExtCheckPassed    =true;     // status checking error

double  maxAtual        = 0.00,
        minAtual        = 0.00,
        maxPrev         = 0.00,
        minPrev         = 0.00,
        openAtual       = 0.00,
        closeAtual      = 0.00,
        amplitudeCandle = 0.00,
        entrada         = 0.00,
        tamanhoLote     = 2,    //WinFut
        pontoFiboProfit = 1.618,
        takeProfit      = 0.00;

string  dataIntraday = NULL,
        ExtPatternInfo    ="",       // current pattern information
        ExtDirection      ="";       // position opening direction


//--- Input parameters
input int InpAverBodyPeriod=12;     // period for calculating average candlestick size
input int InpMAPeriod      =5;      // Trend MA period
input int InpPeriodRSI     =37;     // RSI period
input ENUM_APPLIED_PRICE  InpPrice=PRICE_CLOSE;    // price type

//--- trade parameters
input uint InpDuration=10;          // position holding time in bars
input uint InpSL      =200;         // Stop Loss in points
input uint InpTP      =200;         // Take Profit in points
input uint InpSlippage=10;          // slippage in points

//--- money management parameters
input double InpLot = TAMANHO_LOTE;            // lot

//--- Expert ID
input long InpMagicNumber=120700;   // Magic Number






//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()  {
    //EventSetTimer(60);
    //ArraySetAsSeries(rates, true);
   Print("InpSL=", InpSL);
   Print("InpTP=", InpTP);
   //--- set parameters for trading operations
   ExtTrade.SetDeviationInPoints(InpSlippage);    // slippage
   ExtTrade.SetExpertMagicNumber(InpMagicNumber); // Expert Advisor ID
   ExtTrade.LogLevel(LOG_LEVEL_ERRORS);           // logging level

   ExtAvgBodyPeriod=InpAverBodyPeriod;
   //--- indicator initialization
   ExtIndicatorHandle=iRSI(_Symbol, _Period, InpPeriodRSI, InpPrice);
   if(ExtIndicatorHandle==INVALID_HANDLE)
     {
      Print("Error creating CCI indicator");
      return(INIT_FAILED);
     }

    //--- trend moving average     
   ExtTrendMAHandle=iMA(_Symbol, _Period, InpMAPeriod,0, MODE_SMA,PRICE_CLOSE);
   if(ExtIndicatorHandle==INVALID_HANDLE)
     {
      Print("Error creating Moving Average indicator");
      return(INIT_FAILED);
     }

   //--- OK
   return(INIT_SUCCEEDED);
}


//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)  {
   //EventKillTimer();
   //--- release indicator handle
   IndicatorRelease(ExtIndicatorHandle);
}


//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()  { 
    /**
    * nova function que obtem o dia atual, atribui a uma nova 
    * variavel chamada de intraday;
    * depois esta funcion pergunta se o dia de hoje eh igual ao
    * variavel intraday, se for diferente ele seta a nova data para 
    * intraday e cancela todas as boletagens do dia anterior
    * que ainda nao foram executadas;
    */
    //validaBoletasIntraday();
    

//--- save the next bar start time; all checks at bar opening only
   static datetime next_bar_open=0;

//--- Phase 1 - check the emergence of a new bar and update the status
   if(TimeCurrent()>=next_bar_open)
     {
      //--- get the current state of environment on the new bar
      // namely, set the values of global variables:
      // ExtPatternDetected - pattern detection
      // ExtConfirmed - pattern confirmation 
      // ExtSignalOpen - signal to open
      // ExtSignalClose - signal to close
      // ExtPatternInfo - current pattern information
      if(CheckState())
        {
         //--- set the new bar opening time
         next_bar_open=TimeCurrent();
         next_bar_open-=next_bar_open%PeriodSeconds(_Period);
         next_bar_open+=PeriodSeconds(_Period);

         //--- report the emergence of a new bar only once within a bar
         if(ExtPatternDetected && ExtConfirmed)
            Print(ExtPatternInfo);
        }
      else
        {
         //--- error getting the status, retry on the next tick
         return;
        }
     }

//--- Phase 2 - if there is a signal and no position in this direction
   if(ExtSignalOpen && !PositionExist(ExtSignalOpen))
     {
      Print("\r\nSignal to open position ", ExtDirection);
      PositionOpen();
      if(PositionExist(ExtSignalOpen))
         ExtSignalOpen=SIGNAL_NOT;
     }

//--- Phase 3 - close if there is a signal to close
   if(ExtSignalClose && PositionExist(ExtSignalClose))
     {
      Print("\r\nSignal to close position ", ExtDirection);
      CloseBySignal(ExtSignalClose);
      if(!PositionExist(ExtSignalClose))
         ExtSignalClose=SIGNAL_NOT;
     }

//--- Phase 4 - close upon expiration
   if(ExtCloseByTime && PositionExpiredByTimeExist())
     {
      CloseByTime();
      ExtCloseByTime=PositionExpiredByTimeExist();
     }

}


//+------------------------------------------------------------------+
//| Timer function                                                   |
//+------------------------------------------------------------------+
void OnTimer()  { }


//+------------------------------------------------------------------+
//| Trade function                                                   |
//+------------------------------------------------------------------+
void OnTrade()  { }


//+------------------------------------------------------------------+
//| TradeTransaction function                                        |
//+------------------------------------------------------------------+
void OnTradeTransaction(const MqlTradeTransaction& trans, const MqlTradeRequest& request, const MqlTradeResult& result)  { }


//+------------------------------------------------------------------+
//| Tester function                                                  |
//+------------------------------------------------------------------+
double OnTester()  { double ret=0.0; return(ret); }


//+------------------------------------------------------------------+
//| TesterInit function                                              |
//+------------------------------------------------------------------+
void OnTesterInit() {   }


//+------------------------------------------------------------------+
//| TesterPass function                                              |
//+------------------------------------------------------------------+
void OnTesterPass()  {  }


//+------------------------------------------------------------------+
//| TesterDeinit function                                            |
//+------------------------------------------------------------------+
void OnTesterDeinit()  {  }


//+------------------------------------------------------------------+
//| ChartEvent function                                              |
//+------------------------------------------------------------------+
void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam) {  }


//+------------------------------------------------------------------+
//| BookEvent function                                               |
//+------------------------------------------------------------------+
void OnBookEvent(const string &symbol) {   }



//#######################################################################
//functions para horarios Bovespa                                       #
//#######################################################################
string getTimestampChart() {
    return (string) TimeCurrent();    
}

string getTimeDate(string data) {
   datetime time = (datetime) data;
   return TimeToString(time, TIME_DATE);
}


/************************************************************************
* 1)leilao abertura BMF                                                 *
*   neste horario eh representado pela abertura de futuros da BMF,      *
*   um bom horario para operar abertura eh das:                         *
*   09:00 ~ 09:25                                                       *
*   porque as 09:30 sempre tem noticias que podem bater em nosso stop;  *
*************************************************************************/
void winLeilaoAberturaBMF() { }

/************************************************************************
* 2)abertura Bovespa                                                    *
*   a abertura do mercado a vista Bovespa eh as 10:00h em ponto porem   *
*   como se trata de acoes, na grande maioria das vezes, algumas delas  *
*   ficam um certo tempo em leilao de abertura entao pelo que agente ja *
*   observou, o WIN nos primeiros 15m fica as vezes sem direção com     *
*   altissima volatilidade, pode bater no stop desnecessariamente,      *
*   entao melhor horario para operar Bovespa eh depois da abertura      *
*   apos o leilao as:                                                   *
*   10:15h                                                              *
*************************************************************************/
void winLeilaoAberturaBovespa() { }


/*************************************************************************
* 3)horario do almoço                                                    *
*   neste horario eh um periodo nulo, por conta que nas bolsas de valores* 
*   os operadores estao em horario de almoço,  e tb eh fechamento da     *
*   bolsa da europa, entao geralmente eh um periodo que a volatilidade eh* 
*   baixa, raro os casos de noticias de ultima hora:                     * 
*   12:00 ~ 14:00                                                        *
**************************************************************************/
void winAlmocoBovespa() { }


/*************************************************************************
* 4)periodo da tarde                                                     *
*   eh o periodo em que volta com um volume de negociacao mais forte e   *
*   pode fazer o mercado ficar mais direcional:                          *
*   14:00 ~ 17:00                                                        *
**************************************************************************/
void winTardeBovespa() { }

/**************************************************************************
* 5)leilao fechamento BMF                                                 *
*   neste periodo apos as 17:00h o mercado de balcao Bovespa esta fechado *
*   é permitido operar o WIN porem precisa estar atento porque o volume   *
*   de negociacao geralmente eh muito baixo, unica vantagem eh q          *
*   geralmente ele obedece a mesma direcao de quando foi fechado o mercado*
*   Bovespa as 17h:                                                       *
*   17:00 ~ 18:15                                                         *
*                                                                         *
*   *obs:                                                                 *
*   nesta function precisa ter uma funcionalidade de quando o horario     *
*   passar das 17:55h ele precisa stopar todas as boletas nos status:     *
*   ->em aberto                                                           *
*   ->em execucao                                                         *
*   ->pendentes                                                           *
***************************************************************************/
void winLeilaoFechamentoBMF() { }






/**
* primeiro precisamos pegar a data atual do chart
* a variavel dataIntraday inicializa NULL
* precisamos verificar se a data se hoje eh igual a variavel dataIntraday
* se nao for primeiro agente atribui a data chart para a variavel
* depois precisamos verificar se existem boletas em aberto sem estar em execucao
* se houver cancela todas
* agora se houver boletas em execucao agente precisa pesquisar alguma funcao
* pra ver se agente consegue fechar ela a mercado;
* 
* se tratando de bovespa agente percebeu/aprendeu que existem mais horarios de corte
* por conta de algumas noticias que podem ocorrer no intraday, entao
* vamos colocar os horarios que sao disponiveis para negociacao que
* devem estar contempladas no nosso codigo:
* 
* 1)abertura BMF
*   neste horario eh representado pela abertura de futuros da BMF,
*   um bom horario para operar abertura eh das:
*   09:00 ~ 09:25
*   porque as 09:30 sempre tem noticias que podem bater em nosso stop;
* 
* 2)abertura Bovespa
*   a abertura do mercado a vista Bovespa eh as 10:00h em ponto porem 
*   como se trata de acoes, na grande maioria das vezes, algumas delas ficam
*   um certo tempo em leilao de abertura entao pelo que agente ja observou, 
*   o WIN nos primeiros 15m fica as vezes sem direção com altissima volatilidade,
*   pode bater no stop desnecessariamente, entao melhor horario para operar Bovespa eh depois
*   da abertura apos o leilao as:
*   10:15h
*
* 3)horario do almoço
*   neste horario eh um periodo nulo, por conta que nas bolsas de valores os operadores
*   estao em horario de almoço,  e tb eh fechamento da bolsa da europa, entao geralmente 
*   eh um periodo que a volatilidade eh baixa, raro os casos de noticias de ultima hora:
*   12:00 ~ 14:00
*
* 4)periodo da tarde
*   eh o periodo em que volta com um volume de negociacao mais forte e pode fazer o mercado 
*   ficar mais direcional:
*   14:00 ~ 17:00
*
* 5)leilao fechamento BMF
*   neste periodo apos as 17:00h o mercado de balcao Bovespa esta fechado, é permitido
*   operar o WIN porem precisa estar atento porque o volume de negociacao
*   geralmente eh muito baixo, unica vantagem eh q geralmente ele obedece a mesma
*   direcao de quando foi fechado o mercado Bovespa as 17h:
*   17:00 ~ 18:15
*
*/
void validaBoletasIntraday() {
    Alert("\n get data timestamp string => " + getTimeDate(getTimestampChart()));
    
    //se a variavel esta diferente significa ou q esta nula
    //ou o dia do chart virou mercado fechou
    if(dataIntraday != getTimeDate(getTimestampChart())) {
       dataIntraday = getTimeDate(getTimestampChart());
       
       //agora precisamos ver como fecha boletas em aberto
       //depois ver como fechar a mercado boletas em execucao
       //trade.SellStop(tamanhoLote, entrada, Symbol(), maxAtual, takeProfit, 0, 0, NULL);
       
       //sera q este fecha boleta?
       //parametro eh o TicketID
       trade.PositionClose(1234);
       
       //modifica a boleta
       //parametros:
       //symbol, double sl, double tp
       //trade.PositionModify();

       //testar resultados abaixo
       trade.CheckResultBalance();
       trade.CheckResultComment();
       trade.CheckResultEquity();
       trade.CheckResultMargin();
       trade.CheckResultMarginFree();
       trade.CheckResultMarginLevel();
       trade.CheckResultProfit();       
       trade.RequestVolume();
       trade.RequestActionDescription();
       trade.RequestComment();
       trade.RequestDeviation();
       trade.RequestExpiration();
       trade.RequestMagic();
       trade.RequestOrder();
       trade.RequestPosition();
       trade.RequestPositionBy();
       trade.RequestPrice();
       trade.RequestSL();
       trade.RequestStopLimit();
       trade.RequestSymbol();
       trade.RequestTP();
       trade.RequestTypeDescription();
       trade.RequestTypeFillingDescription();
       trade.RequestTypeTimeDescription();
       trade.RequestVolume();
       trade.ResultAsk();
       trade.ResultBid();
       trade.ResultComment();
       trade.ResultDeal();
       trade.ResultOrder();
       trade.ResultPrice();
       trade.ResultRetcode();
       trade.ResultRetcodeDescription();
       trade.ResultRetcodeExternal();
       trade.ResultVolume();
    }
}






//############################################################
//functions exclusivas para a estrategia                     #
//DarkCloud-PiercingLine-RSI                                 #
//############################################################
//+------------------------------------------------------------------+
//|  Get the current environment and check for a pattern             |
//+------------------------------------------------------------------+
bool CheckState()
  {
//--- check if there is a pattern
   if(!CheckPattern())
     {
      Print("Error, failed to check pattern");
      return(false);
     }

//--- check for confirmation
   if(!CheckConfirmation())
     {
      Print("Error, failed to check pattern confirmation");
      return(false);
     }
//--- if there is no confirmation, cancel the signal
   if(!ExtConfirmed)
      ExtSignalOpen=SIGNAL_NOT;

//--- check if there is a signal to close a position
   if(!CheckCloseSignal())
     {
      Print("Error, failed to check the closing signal");
      return(false);
     }

//--- if positions are to be closed after certain holding time in bars
   if(InpDuration)
      ExtCloseByTime=true; // set flag to close upon expiration

//--- all checks done
   return(true);
  }
//+------------------------------------------------------------------+
//| Open a position in the direction of the signal                   |
//+------------------------------------------------------------------+
bool PositionOpen()
  {
   ExtSymbolInfo.Refresh();
   ExtSymbolInfo.RefreshRates();

   double price=0;
//--- Stop Loss and Take Profit are not set by default
   double stoploss=0.0;
   double takeprofit=0.0;

   int    digits=ExtSymbolInfo.Digits();
   double point=ExtSymbolInfo.Point();
   double spread=ExtSymbolInfo.Ask()-ExtSymbolInfo.Bid();

//--- uptrend
   if(ExtSignalOpen==SIGNAL_BUY)
     {
      price=NormalizeDouble(ExtSymbolInfo.Ask(), digits);
      //--- if Stop Loss is set
      if(InpSL>0)
        {
         if(spread>=InpSL*point)
           {
            PrintFormat("StopLoss (%d points) <= current spread = %.0f points. Spread value will be used", InpSL, spread/point);
            stoploss = NormalizeDouble(price-spread, digits);
           }
         else
            stoploss = NormalizeDouble(price-InpSL*point, digits);
        }
      //--- if Take Profit is set
      if(InpTP>0)
        {
         if(spread>=InpTP*point)
           {
            PrintFormat("TakeProfit (%d points) < current spread = %.0f points. Spread value will be used", InpTP, spread/point);
            takeprofit = NormalizeDouble(price+spread, digits);
           }
         else
            takeprofit = NormalizeDouble(price+InpTP*point, digits);
        }

      if(!ExtTrade.Buy(InpLot, Symbol(), price, stoploss, takeprofit))
        {
         PrintFormat("Failed %s buy %G at %G (sl=%G tp=%G) failed. Ask=%G error=%d",
                     Symbol(), InpLot, price, stoploss, takeprofit, ExtSymbolInfo.Ask(), GetLastError());
         return(false);
        }
     }

//--- downtrend
   if(ExtSignalOpen==SIGNAL_SELL)
     {
      price=NormalizeDouble(ExtSymbolInfo.Bid(), digits);
      //--- if Stop Loss is set
      if(InpSL>0)
        {
         if(spread>=InpSL*point)
           {
            PrintFormat("StopLoss (%d points) <= current spread = %.0f points. Spread value will be used", InpSL, spread/point);
            stoploss = NormalizeDouble(price+spread, digits);
           }
         else
            stoploss = NormalizeDouble(price+InpSL*point, digits);
        }
      //--- if Take Profit is set
      if(InpTP>0)
        {
         if(spread>=InpTP*point)
           {
            PrintFormat("TakeProfit (%d points) < current spread = %.0f points. Spread value will be used", InpTP, spread/point);
            takeprofit = NormalizeDouble(price-spread, digits);
           }
         else
            takeprofit = NormalizeDouble(price-InpTP*point, digits);
        }

      if(!ExtTrade.Sell(InpLot, Symbol(), price,  stoploss, takeprofit))
        {
         PrintFormat("Failed %s sell at %G (sl=%G tp=%G) failed. Bid=%G error=%d",
                     Symbol(), price, stoploss, takeprofit, ExtSymbolInfo.Bid(), GetLastError());
         ExtTrade.PrintResult();
         Print("   ");
         return(false);
        }
     }

   return(true);
  }
//+------------------------------------------------------------------+
//|  Close a position based on the specified signal                  |
//+------------------------------------------------------------------+
void CloseBySignal(int type_close)
  {
//--- if there is no signal to close, return successful completion
   if(type_close==SIGNAL_NOT)
      return;
//--- if there are no positions opened by our EA
   if(PositionExist(ExtSignalClose)==0)
      return;

//--- closing direction
   long type;
   switch(type_close)
     {
      case CLOSE_SHORT:
         type=POSITION_TYPE_SELL;
         break;
      case CLOSE_LONG:
         type=POSITION_TYPE_BUY;
         break;
      default:
         Print("Error! Signal to close not detected");
         return;
     }

//--- check all positions and close ours based on the signal
   int positions=PositionsTotal();
   for(int i=positions-1; i>=0; i--)
     {
      ulong ticket=PositionGetTicket(i);
      if(ticket!=0)
        {
         //--- get the name of the symbol and the position id (magic)
         string symbol=PositionGetString(POSITION_SYMBOL);
         long   magic =PositionGetInteger(POSITION_MAGIC);
         //--- if they correspond to our values
         if(symbol==Symbol() && magic==InpMagicNumber)
           {
            if(PositionGetInteger(POSITION_TYPE)==type)
              {
               ExtTrade.PositionClose(ticket, InpSlippage);
               ExtTrade.PrintResult();
               Print("   ");
              }
           }
        }
     }
  }
//+------------------------------------------------------------------+
//|  Close positions upon holding time expiration in bars            |
//+------------------------------------------------------------------+
void CloseByTime()
  {
//--- if there are no positions opened by our EA
   if(PositionExist(ExtSignalOpen)==0)
      return;

//--- check all positions and close ours based on the holding time in bars
   int positions=PositionsTotal();
   for(int i=positions-1; i>=0; i--)
     {
      ulong ticket=PositionGetTicket(i);
      if(ticket!=0)
        {
         //--- get the name of the symbol and the position id (magic)
         string symbol=PositionGetString(POSITION_SYMBOL);
         long   magic =PositionGetInteger(POSITION_MAGIC);
         //--- if they correspond to our values
         if(symbol==Symbol() && magic==InpMagicNumber)
           {
            //--- position opening time
            datetime open_time=(datetime)PositionGetInteger(POSITION_TIME);
            //--- check position holding time in bars
            if(BarsHold(open_time)>=(int)InpDuration)
              {
               Print("\r\nTime to close position #", ticket);
               ExtTrade.PositionClose(ticket, InpSlippage);
               ExtTrade.PrintResult();
               Print("   ");
              }
           }
        }
     }
  }
//+------------------------------------------------------------------+
//| Returns true if there are open positions                         |
//+------------------------------------------------------------------+
bool PositionExist(int signal_direction)
  {
   bool check_type=(signal_direction!=SIGNAL_NOT);

//--- what positions to search
   ENUM_POSITION_TYPE search_type=WRONG_VALUE;
   if(check_type)
      switch(signal_direction)
        {
         case SIGNAL_BUY:
            search_type=POSITION_TYPE_BUY;
            break;
         case SIGNAL_SELL:
            search_type=POSITION_TYPE_SELL;
            break;
         case CLOSE_LONG:
            search_type=POSITION_TYPE_BUY;
            break;
         case CLOSE_SHORT:
            search_type=POSITION_TYPE_SELL;
            break;
         default:
            //--- entry direction is not specified; nothing to search
            return(false);
        }

//--- go through the list of all positions
   int positions=PositionsTotal();
   for(int i=0; i<positions; i++)
     {
      if(PositionGetTicket(i)!=0)
        {
         //--- if the position type does not match, move on to the next one
         ENUM_POSITION_TYPE type=(ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE);
         if(check_type && (type!=search_type))
            continue;
         //--- get the name of the symbol and the expert id (magic number)
         string symbol =PositionGetString(POSITION_SYMBOL);
         long   magic  =PositionGetInteger(POSITION_MAGIC);
         //--- if they correspond to our values
         if(symbol==Symbol() && magic==InpMagicNumber)
           {
            //--- yes, this is the right position, stop the search
            return(true);
           }
        }
     }

//--- open position not found
   return(false);
  }
//+------------------------------------------------------------------+
//| Returns true if there are open positions with expired time       |
//+------------------------------------------------------------------+
bool PositionExpiredByTimeExist()
  {
//--- go through the list of all positions
   int positions=PositionsTotal();
   for(int i=0; i<positions; i++)
     {
      if(PositionGetTicket(i)!=0)
        {
         //--- get the name of the symbol and the expert id (magic number)
         string symbol =PositionGetString(POSITION_SYMBOL);
         long   magic  =PositionGetInteger(POSITION_MAGIC);
         //--- if they correspond to our values
         if(symbol==Symbol() && magic==InpMagicNumber)
           {
            //--- position opening time
            datetime open_time=(datetime)PositionGetInteger(POSITION_TIME);
            //--- check position holding time in bars
            int check=BarsHold(open_time);
            //--- id the value is -1, the check completed with an error
            if(check==-1 || (BarsHold(open_time)>=(int)InpDuration))
               return(true);
           }
        }
     }

//--- open position not found
   return(false);
  }
//+------------------------------------------------------------------+
//| Checks position closing time in bars                             |
//+------------------------------------------------------------------+
int BarsHold(datetime open_time)
  {
//--- first run a basic simple check
   if(TimeCurrent()-open_time<PeriodSeconds(_Period))
     {
      //--- opening time is inside the current bar
      return(0);
     }
//---
   MqlRates bars[];
   if(CopyRates(_Symbol, _Period, open_time, TimeCurrent(), bars)==-1)
     {
      Print("Error. CopyRates() failed, error = ", GetLastError());
      return(-1);
     }
//--- check position holding time in bars
   return(ArraySize(bars));
  }
//+------------------------------------------------------------------+
//| Returns the open price of the specified bar                      |
//+------------------------------------------------------------------+
double Open(int index)
  {
   double val=iOpen(_Symbol, _Period, index);
//--- if the current check state was successful and an error was received
   if(ExtCheckPassed && val==0)
      ExtCheckPassed=false;   // switch the status to failed

   return(val);
  }
//+------------------------------------------------------------------+
//| Returns the close price of the specified bar                     |
//+------------------------------------------------------------------+
double Close(int index)
  {
   double val=iClose(_Symbol, _Period, index);
//--- if the current check state was successful and an error was received
   if(ExtCheckPassed && val==0)
      ExtCheckPassed=false;   // switch the status to failed

   return(val);
  }
//+------------------------------------------------------------------+
//| Returns the low price of the specified bar                       |
//+------------------------------------------------------------------+
double Low(int index)
  {
   double val=iLow(_Symbol, _Period, index);
//--- if the current check state was successful and an error was received
   if(ExtCheckPassed && val==0)
      ExtCheckPassed=false;   // switch the status to failed

   return(val);
  }
//+------------------------------------------------------------------+
//| Returns the high price of the specified bar                      |
//+------------------------------------------------------------------+
double High(int index)
  {
   double val=iHigh(_Symbol, _Period, index);
//--- if the current check state was successful and an error was received
   if(ExtCheckPassed && val==0)
      ExtCheckPassed=false;   // switch the status to failed

   return(val);
  }
//+------------------------------------------------------------------+
//| Returns the middle body price for the specified bar              |
//+------------------------------------------------------------------+
double MidPoint(int index)
  {
   return(High(index)+Low(index))/2.;
  }
//+------------------------------------------------------------------+
//| Returns the middle price of the range for the specified bar      |
//+------------------------------------------------------------------+
double MidOpenClose(int index)
  {
   return((Open(index)+Close(index))/2.);
  }
//+------------------------------------------------------------------+
//| Returns the average candlestick body size for the specified bar  |
//+------------------------------------------------------------------+
double AvgBody(int index)
  {
   double sum=0;
   for(int i=index; i<index+ExtAvgBodyPeriod; i++)
     {
      sum+=MathAbs(Open(i)-Close(i));
     }
   return(sum/ExtAvgBodyPeriod);
  }
//+------------------------------------------------------------------+
//| Returns true in case of successful pattern check                 |
//+------------------------------------------------------------------+
bool CheckPattern()
  {
   ExtPatternDetected=false;
//--- check if there is a pattern
   ExtSignalOpen=SIGNAL_NOT;
   ExtPatternInfo="\r\nPattern not detected";
   ExtDirection="";

//--- check Dark Cloud Cover
   if((Close(2)-Open(2)>AvgBody(1))  && // long body of the white candlestick (long white)
      (Close(1)<Close(2))            && // followed by a black candlestick
      (Close(1)>Open(2))             && // close within the previous candlestick body (white)
      (MidOpenClose(2)>CloseAvg(2))  && // uptrend
      (Open(1)>High(2)))                // open above the previous day's High price (open at new high)
     {
      ExtPatternDetected=true;
      ExtSignalOpen=SIGNAL_SELL;
      ExtPatternInfo="\r\nDark Cloud Cover detected";
      ExtDirection="Sell";
      return(true);
     }

//--- check Piercing Line
   if((Close(1)-Open(1)>AvgBody(1)) && // long body of the white candlestick (long white)
      (Open(2)-Close(2)>AvgBody(1)) && // long body of the previous black candlestick (long black)
      (Close(1)>Close(2))           && // close within the body 
      (Close(1)<Open(2))            && // of the previous candlestick (close inside previous body) 
      (MidOpenClose(2)<CloseAvg(2)) && // downtrend
      (Open(1)<Low(2)))                // open lower than previous Low 
      return(true);
     {
      ExtPatternDetected=true;
      ExtSignalOpen=SIGNAL_BUY;
      ExtPatternInfo="\r\nPiercing Line detected";
      ExtDirection="Buy";
      return(true);
     }

//--- result of checking
   return(ExtCheckPassed);
  }
//+------------------------------------------------------------------+
//| Returns true in case of successful confirmation check            |
//+------------------------------------------------------------------+
bool CheckConfirmation()
  {
   ExtConfirmed=false;
//--- if there is no pattern, do not search for confirmation
   if(!ExtPatternDetected)
      return(true);

//--- get the value of the stochastic indicator to confirm the signal
   double signal=RSI(1);
   if(signal==EMPTY_VALUE)
     {
      //--- failed to get indicator value, check failed
      return(false);
     }

//--- check the Buy signal
   if(ExtSignalOpen==SIGNAL_BUY && (signal<40))
     {
      ExtConfirmed=true;
      ExtPatternInfo+="\r\n   Confirmed: RSI<40";
     }

//--- check the Sell signal
   if(ExtSignalOpen==SIGNAL_SELL && (signal>60))
     {
      ExtConfirmed=true;
      ExtPatternInfo+="\r\n   Confirmed: RSI>60";
     }

//--- successful completion of the check
   return(true);
  }
//+------------------------------------------------------------------+
//| Check if there is a signal to close                              |
//+------------------------------------------------------------------+
bool CheckCloseSignal()
  {
   ExtSignalClose=false;
//--- if there is a signal to enter the market, do not check the signal to close
   if(ExtSignalOpen!=SIGNAL_NOT)
      return(true);

//--- check if there is a signal to close a long position
   if(((RSI(1)<70) && (RSI(2)>70)) || ((RSI(1)<30) && (RSI(2)>30)))
     {
      //--- there is a signal to close a long position
      ExtSignalClose=CLOSE_LONG;
      ExtDirection="Long";
     }

//--- check if there is a signal to close a short position
   if(((RSI(1)>30) && (RSI(2)<30)) || ((RSI(1)>70) && (RSI(2)<70)))
     {
      //--- there is a signal to close a short position
      ExtSignalClose=CLOSE_SHORT;
      ExtDirection="Short";
     }

//--- successful completion of the check
   return(true);
  }
//+------------------------------------------------------------------+
//| RSI indicator value at the specified bar                         |
//+------------------------------------------------------------------+
double RSI(int index)
  {
   double indicator_values[];
   if(CopyBuffer(ExtIndicatorHandle, 0, index, 1, indicator_values)<0)
     {
      //--- if the copying fails, report the error code
      PrintFormat("Failed to copy data from the RSI indicator, error code %d", GetLastError());
      return(EMPTY_VALUE);
     }
   return(indicator_values[0]);
  }
//+------------------------------------------------------------------+
//| SMA value at the specified bar                                   |
//+------------------------------------------------------------------+
double CloseAvg(int index)
  {
   double indicator_values[];
   if(CopyBuffer(ExtTrendMAHandle, 0, index, 1, indicator_values)<0)
     {
      //--- if the copying fails, report the error code
      PrintFormat("Failed to copy data from the Simple Moving Average indicator, error code %d", GetLastError());
      return(EMPTY_VALUE);
     }
   return(indicator_values[0]);
  }
//############################################################
//fim das functions exclusivas para a estrategia             #
//DarkCloud-PiercingLine-RSI                                 #
//############################################################