//+------------------------------------------------------------------+
//|                                          A_EntriesManagement.mqh |
//|                        Copyright 2021, Nkondog Anselme Venceslas |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, Nkondog Anselme Venceslas"
#property link      "https://www.mql5.com"

//Evaluate if there is an entry signal
void EvaluateEntry()
  {
   SignalEntry=SIGNAL_ENTRY_NEUTRAL;
   if(!IsSpreadOK)
     {
      Print("At "+SymbolInfoInteger(Symb, SYMBOL_SPREAD)+" Spread is too high to open a position");
      return;    //If the spread is too high don't give an entry signal
     }
   if(UseTradingHours && !IsOperatingHours)
      return;      //If you are using trading hours and it's not a trading hour don't give an entry signal
//if(!IsNewCandle) return;      //If you want to provide a signal only if it's a new candle opening
//if(IsTradedThisBar) return;   //If you don't want to execute multiple trades in the same bar
   /*if(!ShouldTrade())
     {
      Print("No additional trade is allowed on a profitable day");
      return;
     }*/
   if(TotalOpenOrders>0)
     {
      Print("Trade activity suspended! Opened position(s) found.");
      return; //If there are already open orders and you don't want to open more
     }
entryConditions();
//Entry Signal for BUY orders
   if(priceMomentum == UP)
     {
      SignalEntry=SIGNAL_ENTRY_BUY;
      Print("Buy entry signal");
      priceMomentum = NEUTRAL;
     }

//Entry Signal for SELL orders
   if(priceMomentum == DOWN)
     {
      SignalEntry=SIGNAL_ENTRY_SELL;
      Print("Sell entry signal");
      priceMomentum = NEUTRAL;
     }
   Print("Evaluating entry possibility, Out Signal entry "+SignalEntry);
  }



//Execute entry if there is an entry signal
void ExecuteEntry()
  {
//If there is no entry signal no point to continue, exit the function
   if(SignalEntry==SIGNAL_ENTRY_NEUTRAL)
      return;
   int Operation;
   double OpenPrice=0;
   double StopLossPrice=0;
   double TakeProfitPrice=0;
//If there is a Buy entry signal
   if(SignalEntry==SIGNAL_ENTRY_BUY)
     {
      Print("In buy execution");
      Operation=ORDER_TYPE_BUY; //Set the operation to BUY
      OpenPrice=last_tick.ask;    //Set the open price to Ask price
      //If the Stop Loss is fixed and the default stop loss is set
      if(StopLossMode==SL_FIXED && DefaultStopLoss>0)
        {
         StopLossPrice=OpenPrice-DefaultStopLoss*Point();
        }
      //If the Stop Loss is automatic
      if(StopLossMode==SL_AUTO)
        {
         //Set the Stop Loss to the custom stop loss price
         //StopLossPrice=last_tick.ask-((last_tick.ask-sell_level));
         StopLossPrice=iLow(Symb, PERIOD_CURRENT, 3);
        }
      //If the Take Profix price is fixed and defined
      if(TakeProfitMode==TP_FIXED && DefaultTakeProfit>0)
        {
         TakeProfitPrice=OpenPrice+DefaultTakeProfit*Point();
        }
      //If the Take Profit is automatic
      if(TakeProfitMode==TP_AUTO)
        {
         //Set the Take Profit to the custom take profit price
         TakeProfitPrice=OpenPrice+((OpenPrice-StopLossPrice)*TakeProfitPercent);
         if(ProfitRun)
           {
            TakeProfitPrice=OpenPrice+((OpenPrice-StopLossPrice)*ProfitRunTargetPercent);
           }
        }
      //Normalize the digits for the float numbers
      OpenPrice=NormalizeDouble(OpenPrice,Digits());
      StopLossPrice=NormalizeDouble(StopLossPrice,Digits());
      TakeProfitPrice=NormalizeDouble(TakeProfitPrice,Digits());
      //Submit the order
      SendOrder(Operation,Symbol(),OpenPrice,StopLossPrice,TakeProfitPrice);
     }


   if(SignalEntry==SIGNAL_ENTRY_SELL)
     {
      Operation=ORDER_TYPE_SELL; //Set the operation to SELL
      OpenPrice=last_tick.bid;    //Set the open price to Ask price
      //If the Stop Loss is fixed and the default stop loss is set
      if(StopLossMode==SL_FIXED && DefaultStopLoss>0)
        {
         StopLossPrice=OpenPrice+DefaultStopLoss*Point();
        }
      //If the Stop Loss is automatic
      if(StopLossMode==SL_AUTO)
        {
         StopLossPrice=iLow(Symb, PERIOD_CURRENT, 3);
        }
      //If the Take Profix price is fixed and defined
      if(TakeProfitMode==TP_FIXED && DefaultTakeProfit>0)
        {
         TakeProfitPrice=OpenPrice-DefaultTakeProfit*Point();
        }
      //If the Take Profit is automatic
      if(TakeProfitMode==TP_AUTO)
        {
         //Set the Take Profit to the custom take profit price
         TakeProfitPrice=OpenPrice-((StopLossPrice-OpenPrice)*TakeProfitPercent);
         if(ProfitRun)
           {
            TakeProfitPrice=OpenPrice-((StopLossPrice-OpenPrice)*ProfitRunTargetPercent);
           }
        }
      //Normalize the digits for the float numbers
      OpenPrice=NormalizeDouble(OpenPrice,Digits());
      StopLossPrice=NormalizeDouble(StopLossPrice,Digits());
      TakeProfitPrice=NormalizeDouble(TakeProfitPrice,Digits());
      //Submit the order
      SendOrder(Operation,Symbol(),OpenPrice,StopLossPrice,TakeProfitPrice);
     }

  }

//Send Order Function adjusted to handle errors and retry multiple times
void SendOrder(int Command, string Instrument, double OpenPrice, double SLPrice, double TPPrice, datetime Expiration=0)
  {
   MqlTradeRequest request= {};
   MqlTradeResult  result= {};
//Retry a number of times in case the submission fails
   for(int i=1; i<=OrderOpRetry; i++)
     {
      //Set the color for the open arrow for the order
      /*color OpenColor=clrBlueViolet;
      if(Command==OP_BUY)
        {
         OpenColor=clrChartreuse;
        }
      if(Command==OP_SELL)
        {
         OpenColor=clrDarkTurquoise;
        }*/
      //Calculate the position size, if the lot size is zero then exit the function
      double SLPoints=0;
      Print("Stop loss ", SLPrice, " Open price ", OpenPrice);
      //If the Stop Loss price is set then find the points of distance between open price and stop loss price, and round it
      if(SLPrice>0)
         SLPoints=MathCeil(MathAbs(OpenPrice-SLPrice)/_Point);
      //Call the function to calculate the position size
      CheckHistory();
Print("Stop loss en point ", SLPoints, " Point ", _Point);
      LotSizeCalculate(SLPoints);
      //If the position size is zero then exit and don't submit any orderInit

      Print("Stop loss en point ", SLPoints);
      if(LotSize==0)
         return;

      request.action       =TRADE_ACTION_DEAL;                     // type de l'opération de trading
      request.symbol       =Instrument;                              // symbole
      request.volume       =LotSize;                                   // volume de 0.1 lot
      request.type         =Command;                        // type de l'ordre
      request.price        =SYMBOL_TRADE_EXECUTION_MARKET; // prix d'ouverture
      request.sl           =NormalizeDouble(SLPrice,Digits());
      request.tp           =NormalizeDouble(TPPrice,Digits());
      request.type_filling =ORDER_FILLING_FOK;
      request.deviation    =Slippage;
      request.expiration   =Expiration;                             // déviation du prix autorisée
      //Submit the order

      if(!OrderSend(request,result))
         PrintFormat("OrderSend erreur %d",GetLastError());     // en cas d'erreur d'envoi de la demande, affiche le code d'erreur
      //--- informations de l'opération
      PrintFormat("retcode=%u  transaction=%I64u  ordre=%I64u",result.retcode,result.deal,result.order);

      if(result.retcode == TRADE_RETCODE_DONE && result.deal != 0)
         break;
     }
   return;
  }

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void entryConditions()
  {
   double lastCandleOpen, lastCandleClose, firstCandleOpen, firstCandleClose;
   int candles = NumberOfCandles + 1;
   priceMomentum = NEUTRAL;

   for(int i=0; i<candles; i++)
     {
      Print(" Candle number "+i);
      if(i == 1)
        {
         lastCandleClose = iClose(Symb, PERIOD_CURRENT, i);
         lastCandleOpen = iOpen(Symb, PERIOD_CURRENT, i);
         Print("Number ", i, " Last close ", iClose(Symb, PERIOD_CURRENT, i));
        }
      if(i == NumberOfCandles)
        {
         firstCandleOpen = iOpen(Symb, PERIOD_CURRENT, i);
         Print("Number ", NumberOfCandles, " First close ", iClose(Symb, PERIOD_CURRENT, i));
         firstCandleClose = iClose(Symb, PERIOD_CURRENT, i);
        }
     }

   if(firstCandleOpen > firstCandleClose)
     {
      candleType = BEARISH_CANDLE;
     }
   if(firstCandleOpen < firstCandleClose)
     {
      candleType = BULLISH_CANDLE;
     }

   if(candleType == BEARISH_CANDLE && lastCandleClose < firstCandleClose && lastCandleClose < lastCandleOpen)
     {
      priceMomentum=DOWN;
     }
   if(candleType == BULLISH_CANDLE && lastCandleClose > firstCandleClose && lastCandleClose > lastCandleOpen)
     {
      priceMomentum=UP;
     }
  }
//+------------------------------------------------------------------+