//+-----------+
//|Divergence |
//+-----------+
#property copyright "Ron Thompson"
#property link      "http://www.ForexMT4.com/"

// This EA is NEVER to be SOLD individually 
// This EA is NEVER to be INCLUDED as part of a collection that is SOLD


// EA SPECIFIC
extern int    Fast_Period = 7;
extern int    Fast_Price = PRICE_OPEN;
extern int    Slow_Period = 88;
extern int    Slow_Price = PRICE_OPEN;
extern double DVBuySell = 0.0057;
extern double DVStayOut = 0.0097;

// user input
extern double Lots                =       0.01 ;
extern double ProfitMade          =       0    ; 
extern double BasketProfit        =     383    ; 
extern double BasketTrail         =       0    ;
extern double LossLimit           =       0    ;
extern double BasketLoss          =     351    ;
extern double BreakEven           =       0    ;
extern double TrailStop           =       0    ;


// Trade control
double        lotsi;                                // used for Martingale loss recovery
double        myPoint;                              // support for 3/5 decimal places
int           Slippage=2;                           // how many pips of slippage can you tolorate
bool          TradeAllowed=true;                    // used to manage trades
//bool          TradesLocked=false;
int           loopcount;                            // count of order attempts
int           maxloop=25;                           // maximum number of attempts to handle errors
int           LL2SL=10;                             // LossLimit to StopLoss server spread
int           maxOrders;                            // statistic for maximum numbers or orders open at one time
int           MagicNumber  = 142537;                // allows multiple experts to trade on same account
string        TradeComment = "_divergence17i.txt";  // where to log information
string        pr;

// Bar handling
datetime      bartime=0;                            // used to determine when a bar has moved
int           bartick=0;                            // number of times bars have moved
int           tickcount = 0;

//baskettrail
double btrail=0;                                    // trail the basket (Symbol() and MagicNumber)


// used for verbose error logging
#include <stdlib.mqh>


//+-------------+
//| Custom init |
//|-------------+
// Called ONCE when EA is added to chart or recompiled

int init()
  {
   // hide the unused procedure "Warning"s 
   // as it freaks non-programmers out badly
   if(0==1) iLSMA(0,1,1,1);

   // get normalized Point based on Broker decimal places
   myPoint = SetPoint();
   
   lotsi=Lots;
  
     
   switch (Period())
     {
     case    1: pr = "M1";  break;
     case    5: pr = "M5";  break;
     case   15: pr = "M15"; break;
     case   30: pr = "M30"; break;
     case   60: pr = "H1";  break;
     case  240: pr = "H4";  break;
     case 1440: pr = "D1";  break;
     }

   logwrite(TradeComment,"Init Complete");
   Comment(" ");
  }


//+----------------+
//| Custom DE-init |
//+----------------+
// Called ONCE when EA is removed from chart

int deinit()
  {
   // always indicate deinit statistics
   logwrite(TradeComment,"MAX number of orders "+maxOrders);
   
   logwrite(TradeComment,"DE-Init Complete");
   Comment(" ");
  }


//+-----------+
//| Main      |
//+-----------+
// Called EACH TICK and each Bar[]

int start()
  {

   if(IsTesting() && DVBuySell>=DVStayOut) return(0);
   
   //**************ADDED FOR ACCOUNT SENTRY ***************
   if (GlobalVariableGet("GV_CloseAllAndHalt") > 0) return (0);
   //**************END ACCOUNT SENTRY HOOK ****************

   int      cnt=0;
   int      gle=0;
   int      ticket=0;
   int      OrdersPerSymbol=0;

   // stoploss and takeprofit and close control
   double SL=0;
   double TP=0;
   
   double CurrentProfit=0;
   double CurrentBasket=0;
     
   // direction control
   bool BUYme=false;
   bool SELLme=false;

   //safety counter
   int   loopcount=0;

   // Trade stuff
   double diverge;

 
   lotsi=Lots;


   OrdersPerSymbol=0;
   for(cnt=OrdersTotal();cnt>=0;cnt--)
     {
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if( OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber) OrdersPerSymbol++;
     }
   // keep some statistics
   if(OrdersPerSymbol>maxOrders) maxOrders=OrdersPerSymbol;


   // bar counting
   if(bartime!=iTime(Symbol(), 0, 0) ) 
     {
      bartime=iTime(Symbol(), 0, 0) ;
      bartick++; 
      tickcount++;

      // lock after exceeding DVStayOut
      // unlock after everything closed
      //if(OrdersPerSymbol==0) TradesLocked=false;

      //uncomment for SINGLE trade per bar 
      TradeAllowed=true;

      //+-----------------------------+
      //| Code here will execute once |
      //| at the OPEN of a NEW BAR    |
      //+-----------------------------+
  
        diverge = divergence(Fast_Period, Slow_Period, Fast_Price, Slow_Price, 0);
  
        //if( diverge >= DVStayOut || diverge <= (DVStayOut*(-1)) ) TradesLocked=true;
  
        if(diverge >=  DVBuySell       && diverge <= DVStayOut)           BUYme = true;
        if(diverge <= (DVBuySell*(-1)) && diverge >= (DVStayOut*(-1)))   SELLme = true;

        //logwrite(TradeComment, bartick+" "+tickcount+" "+diverge);
        
         
      //+------------+
      //| End Insert |
      //+------------+

     }



     
   //+-----------------------------+
   //| Insert your indicator here  |
   //| And set either BUYme or     |
   //| SELLme true to place orders |
   //+-----------------------------+

   
   //+------------+
   //| End Insert |
   //+------------+
   

   //ENTRY LONG (buy, Ask) 
   //if( !TradesLocked && TradeAllowed && BUYme)
   if( TradeAllowed && BUYme)
     {
      OpenBuy();
     }
        

   //ENTRY SHORT (sell, Bid)
   //if( !TradesLocked && TradeAllowed && SELLme)
   if( TradeAllowed && SELLme)
     {
      OpenSell();
     }


   //
   // Order Management
   //


   //Basket profit


   // Basket profit or loss - count the profit/loss

   CurrentBasket=0;
   for(cnt=OrdersTotal();cnt>=0;cnt--)
     {
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if( OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber)
        {
         // add up pips
         if(OrderType()==OP_BUY  ) CurrentBasket=CurrentBasket+( Ask-OrderOpenPrice() );
         if(OrderType()==OP_SELL ) CurrentBasket=CurrentBasket+( OrderOpenPrice()-Bid );
        }
     }


   if( BasketProfit>0 && CurrentBasket>=(BasketProfit*myPoint) ) 
     {
      Print("BP*P="+BasketProfit*myPoint+"  CB="+CurrentBasket);
      CloseEverything("BasketProfit");
      btrail=0;
     }

   if( BasketLoss  >0 && CurrentBasket<=(BasketLoss  *myPoint * (-1)) )
     {
      Print("BL*P="+BasketLoss*myPoint+"  CB="+CurrentBasket);
      CloseEverything("BasketLoss");
      btrail=0;
     }


   //basket trailing stop
   //calculate trail
   if(BasketTrail>0 && CurrentBasket>BasketTrail)
     {
      if(CurrentBasket>btrail)
        {
         btrail=CurrentBasket;
        }
     }
   //close on retrace
   if(btrail>0 && CurrentBasket<(btrail-BasketTrail))
     {
      CloseEverything("BasketTrail" );
      btrail=0;
     }




   for(cnt=OrdersTotal();cnt>=0;cnt--)
     {
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if( OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber )
        {
        
         if(OrderType()==OP_BUY)
           {
            CurrentProfit=(Bid-OrderOpenPrice()) ;

            //
            // Modify for break even
            //=======================
            //
            // OrderStopLoss will be equal to OrderOpenPrice if this event happens
            // thus it will only ever get executed one time per ticket
            if( BreakEven>0 )
              {
               if (CurrentProfit >= BreakEven*myPoint && OrderOpenPrice()>OrderStopLoss())
                 {
                  SL=OrderOpenPrice()+(Ask-Bid);
                  TP=OrderTakeProfit();
                  OrderModify(OrderTicket(),OrderOpenPrice(),SL,TP, White);
                  gle=GetLastError();
                  if(gle==0)
                    {
                     logwrite(TradeComment,"MODIFY BUY BE Ticket="+OrderTicket()+" SL="+SL+" TP="+TP);
                    }
                     else 
                    {
                     logwrite(TradeComment,"-----ERROR----- MODIFY BUY  BE Bid="+Bid+" error="+gle+" "+ErrorDescription(gle));
                    }
                 }
              }


            //
            // check for trailing stop
            //=========================
            //
            // This starts trailing after 'TrailStop' pips of profit
            if( TrailStop>0 && Close[0]>OrderOpenPrice()+(TrailStop*myPoint) )  
              {                 
               if( OrderStopLoss() < Bid-(TrailStop*myPoint) )
                 {
                  SL=Bid-(TrailStop*myPoint);
                  TP=OrderTakeProfit();
                  OrderModify(OrderTicket(),OrderOpenPrice(),SL,TP,0,White);
                  gle=GetLastError();
                  if(gle==0)
                    {
                     logwrite(TradeComment,"MODIFY BUY TS Ticket="+OrderTicket()+" SL="+SL+" TP="+TP);
                    }
                     else 
                    {
                     logwrite(TradeComment,"-----ERROR----- MODIFY BUY TS Bid="+Bid+" error="+gle+" "+ErrorDescription(gle)+" ");
                    }
                 }
              }


            // Did we make a profit
            //======================
            if(ProfitMade>0 && CurrentProfit>=(ProfitMade*myPoint))
              {
               CloseBuy("PROFIT");
              }
              

            // Did we take a loss
            //====================
            if(LossLimit>0 && CurrentProfit<=(LossLimit*(-1)*myPoint))
              {
               CloseBuy("LOSS");
              }
              
           } // if BUY


         if(OrderType()==OP_SELL)
           {
            CurrentProfit=(OrderOpenPrice()-Ask);
            //logwrite(TradeComment,"SELL CurrentProfit="+CurrentProfit/myPoint+" CurrentBasket="+CurrentBasket/myPoint);

           
            //
            // Modify for break even
            //=======================
            //
            // OrderStopLoss will be equal to OrderOpenPrice if this event happens
            // thus it will only ever get executed one time per ticket
            if( BreakEven>0 )
              {
               if (CurrentProfit >= BreakEven*myPoint && OrderOpenPrice()<OrderStopLoss())
                 {
                  SL=OrderOpenPrice()-(Ask-Bid);
                  TP=OrderTakeProfit();
                  OrderModify(OrderTicket(),OrderOpenPrice(),SL,TP, Red);
                  gle=GetLastError();
                  if(gle==0)
                    {
                     logwrite(TradeComment,"MODIFY SELL BE Ticket="+OrderTicket()+" SL="+SL+" TP="+TP);
                    }
                     else 
                    {
                     logwrite(TradeComment,"-----ERROR----- MODIFY SELL BE Ask="+Ask+" error="+gle+" "+ErrorDescription(gle));
                    }
                 }
              }


            //
            // check for trailing stop
            //=========================
            //
            // This starts trailing after 'TrailStop' pips of profit
            if( TrailStop>0 && Close[0]<OrderOpenPrice()-(TrailStop*myPoint) )  


              {                 
               if( OrderStopLoss() > Ask+(TrailStop*myPoint) )
                 {
                  SL=Ask+(TrailStop*myPoint);
                  TP=OrderTakeProfit();
                  OrderModify(OrderTicket(),OrderOpenPrice(),SL,TP,0,Red);
                  gle=GetLastError();
                  if(gle==0)
                    {
                     logwrite(TradeComment,"MODIFY SELL TS Ticket="+OrderTicket()+" SL="+SL+" TP="+TP);
                    }
                     else 
                    {
                     logwrite(TradeComment,"-----ERROR----- MODIFY SELL TS Ask="+Ask+" error="+gle+" "+ErrorDescription(gle));
                    }

                 }

              }


            // Did we make a profit
            //======================
            if( ProfitMade>0 && CurrentProfit>=(ProfitMade*myPoint) )
              {
               CloseSell("PROFIT");
              }
             

            // Did we take a loss
            //====================
            if( LossLimit>0 && CurrentProfit<=(LossLimit*(-1)*myPoint) )
              {
               CloseSell("LOSS");
              }

           } //if SELL
           
        } // if(OrderSymbol)
        
     } // for

  } // start()


//+-----------------+
//| CloseEverything |
//+-----------------+
// Closes all OPEN and PENDING orders

int CloseEverything(string myReason)
  {
   int i;
    
   for(i=OrdersTotal();i>=0;i--)
     {

      OrderSelect(i, SELECT_BY_POS);
      if(OrderSymbol()==Symbol() && OrderMagicNumber()==MagicNumber)
        {
         if(OrderType()==OP_BUY)       CloseBuy (myReason);
         if(OrderType()==OP_SELL)      CloseSell(myReason);
         if(OrderType()==OP_BUYLIMIT)  OrderDelete( OrderTicket() );
         if(OrderType()==OP_SELLLIMIT) OrderDelete( OrderTicket() );
         if(OrderType()==OP_BUYSTOP)   OrderDelete( OrderTicket() );
         if(OrderType()==OP_SELLSTOP)  OrderDelete( OrderTicket() );
        }

      Sleep(1000);

     } //for
  
  } // closeeverything



// log data to a file name passed in
// print everything regardless of log setting
void logwrite (string filename, string mydata)
  {
   int myhandle;
   string gregorian=TimeToStr(CurTime(),TIME_DATE|TIME_SECONDS);

   Print(mydata+" "+gregorian);
   
   // don't log anything if testing or if user doesn't want it
   if(IsTesting()) return(0);

   myhandle=FileOpen(Symbol()+"_"+filename, FILE_CSV|FILE_WRITE|FILE_READ, ";");
   if(myhandle>0)
     {
      FileSeek(myhandle,0,SEEK_END);
      FileWrite(myhandle, mydata+" "+gregorian);
      FileClose(myhandle);
     }
  } 



//ENTRY LONG (buy, Ask) 
void OpenBuy()
     {
      int      gle=0;
      int      ticket=0;
      
      double SL=0;
      double TP=0;
      int loopcount;

      // PLACE order is independent of MODIFY order. 
      // This is mandatory for ECNs and acceptable for retail brokers

      loopcount=0;
      while(true)          
        {
         // place order - NO TP OR SL
         ticket=OrderSend(Symbol(),OP_BUY,lotsi,Ask,Slippage,0,0,TradeComment,MagicNumber,White);
         gle=GetLastError();
         if(gle==0)
           {
            logwrite(TradeComment,"BUY PLACED Ticket="+ticket+" Ask="+Ask+" Lots="+lotsi);
            TradeAllowed=false;
            break;
           }
          else 
           {
            logwrite(TradeComment,"-----ERROR-----  Placing BUY order: Lots="+lotsi+" Bid="+Bid+" Ask="+Ask+" ticket="+ticket+" Err="+gle+" "+ErrorDescription(gle)); 
            
            RefreshRates();
            Sleep(500);

            // give up after loopcount tries
            loopcount++;
            if(loopcount>maxloop)
              {
               logwrite(TradeComment,"-----ERROR-----  Giving up on placing BUY order"); 
               return(gle);
              }
           }
        }//while - place order 


      // modify the order for users TP & SL
      loopcount=0;
      while(true)
        {
         // don't set TP and SL both to zero, they're already there
         if(LossLimit==0 && ProfitMade==0) break;
         
         if(LossLimit  ==0) SL=0;
         if(ProfitMade ==0) TP=0;
         if(LossLimit   >0) SL=Ask-((LossLimit+LL2SL)*myPoint );
         if(ProfitMade  >0) TP=Ask+((ProfitMade+LL2SL)*myPoint );
         OrderModify(ticket,OrderOpenPrice(),SL,TP,0,White);
         gle=GetLastError();
         if(gle==0)
           {
            logwrite(TradeComment,"BUY MODIFIED Ticket="+ticket+" Ask="+Ask+" Lots="+lotsi+" SL="+SL+" TP="+TP);
            break;
           }
          else 
           {
            logwrite(TradeComment,"-----ERROR-----  Modifying BUY order: Lots="+lotsi+" SL="+SL+" TP="+TP+" Bid="+Bid+" Ask="+Ask+" ticket="+ticket+" Err="+gle+" "+ErrorDescription(gle)); 
            
            RefreshRates();
            Sleep(500);

            loopcount++;
            if(loopcount>maxloop)
              {
               logwrite(TradeComment,"-----ERROR-----  Giving up on modifying BUY order"); 
               return(gle);
              }
           }
        }//while - modify order
        
        
     }//BUYme



   //ENTRY SHORT (sell, Bid)
void OpenSell()
     {
      int      gle=0;
      int      ticket=0;
      
      double SL=0;
      double TP=0;
      int loopcount;

      // PLACE order is independent of MODIFY order. 
      // This is mandatory for ECNs and acceptable for retail brokers

      loopcount=0;
      while(true)
        {
         ticket=OrderSend(Symbol(),OP_SELL,lotsi,Bid,Slippage,0,0,TradeComment,MagicNumber,Red);
         gle=GetLastError();
         if(gle==0)
           {
            logwrite(TradeComment,"SELL PLACED Ticket="+ticket+" Bid="+Bid+" Lots="+lotsi);
            TradeAllowed=false;
            break;
           }
            else 
           {
            logwrite(TradeComment,"-----ERROR-----  placing SELL order: Lots="+lotsi+" SL="+SL+" TP="+TP+" Bid="+Bid+" Ask="+Ask+" ticket="+ticket+" Err="+gle+" "+ErrorDescription(gle)); 
                            
            RefreshRates();
            Sleep(500);

            loopcount++;
            if(loopcount>maxloop)
              {
               logwrite(TradeComment,"-----ERROR-----  Giving up on placing SELL order"); 
               return(gle);
              }
           }
        }//while

      
      // modify the order for users TP & SL
      loopcount=0;
      while(true)
        {
         // don't set TP and SL both to zero, they're already there
         if(LossLimit==0 && ProfitMade==0) break;
         
         if(LossLimit  ==0) SL=0;
         if(ProfitMade ==0) TP=0;
         if(LossLimit   >0) SL=Bid+((LossLimit+LL2SL)*myPoint );
         if(ProfitMade  >0) TP=Bid-((ProfitMade+LL2SL)*myPoint );
         OrderModify(ticket,OrderOpenPrice(),SL,TP,0,Red);
         gle=GetLastError();
         if(gle==0)
           {
            logwrite(TradeComment,"SELL MODIFIED Ticket="+ticket+" Bid="+Bid+" Lots="+lotsi+" SL="+SL+" TP="+TP);
            TradeAllowed=false;
            break;
           }
            else 
           {
            logwrite(TradeComment,"-----ERROR-----  modifying SELL order: Lots="+lotsi+" SL="+SL+" TP="+TP+" Bid="+Bid+" Ask="+Ask+" ticket="+ticket+" Err="+gle+" "+ErrorDescription(gle)); 
                            
            RefreshRates();
            Sleep(500);

            loopcount++;
            if(loopcount>maxloop)
              {
               logwrite(TradeComment,"-----ERROR-----  Giving up on placing SELL order"); 
               return(gle);
              }
           }

        }//while

     }//SELLme



void CloseBuy (string myInfo)
  {
   int gle;
   int cnt;
   int OrdersPerSymbol;

   int loopcount=0;
   
   string bTK=" Ticket="+OrderTicket();
   string bSL=" SL="+OrderStopLoss();
   string bTP=" TP="+OrderTakeProfit();
   string bPM;
   string bLL;
   string bER;

   bPM=" PM="+ProfitMade;
   bLL=" LL="+LossLimit;

   while(true)
     {
      OrderClose(OrderTicket(),OrderLots(),Bid,Slippage,White);
      gle=GetLastError();
      bER=" error="+gle+" "+ErrorDescription(gle);

      if(gle==0)
        {
         logwrite(TradeComment,"CLOSE BUY "+myInfo+ bTK + bSL + bTP + bPM + bLL);
         break;
        }
       else 
        {
         logwrite(TradeComment,"-----ERROR----- CLOSE BUY "+myInfo+ bER +" Bid="+Bid+ bTK + bSL + bTP + bPM + bLL);
         RefreshRates();
         Sleep(500);
        }


      loopcount++;
      if(loopcount>maxloop)
        {
         logwrite(TradeComment,"-----ERROR-----  Giving up on closing SELL order"); 
         return(gle);
        }
                     
     }//while
  
  }


void CloseSell (string myInfo)
  {
   int gle;
   int cnt;
   int OrdersPerSymbol;

   int loopcount=0;

   string sTK=" Ticket="+OrderTicket();
   string sSL=" SL="+OrderStopLoss();
   string sTP=" TP="+OrderTakeProfit();
   string sPM;
   string sLL;
   string sER;
      
   sPM=" PM="+ProfitMade;
   sLL=" LL="+LossLimit;

   while(true)
     {
      OrderClose(OrderTicket(),OrderLots(),Ask,Slippage,Red);
      gle=GetLastError();
      sER=" error="+gle+" "+ErrorDescription(gle);
      
      if(gle==0)
        {
         logwrite(TradeComment,"CLOSE SELL "+myInfo + sTK + sSL + sTP + sPM + sLL);
         break;
        }
      else 
        {
         logwrite(TradeComment,"-----ERROR----- CLOSE SELL "+myInfo+ sER +" Ask="+Ask+ sTK + sSL + sTP + sPM + sLL);
         RefreshRates();
         Sleep(500);
        }

      loopcount++;
      if(loopcount>maxloop)
        {
         logwrite(TradeComment,"-----ERROR-----  Giving up on closing SELL order"); 
         return(gle);
        }
                 
     }//while                 
  }      


// Function to correct the value of Point
// for brokers that add an extra digit to price
// Courtesy of Robert Hill

double SetPoint()
{
   double mPoint;
  
   if (Digits < 4)
      mPoint = 0.01;
   else
      mPoint = 0.0001;
  
   return(mPoint);
}

double iLSMA(int TimeFrame, int LSMAPeriod, int LSMAPrice,int shift)
  {
   double wt;

   double ma1=iMA(NULL,TimeFrame,LSMAPeriod,0,MODE_SMA ,LSMAPrice,shift);
   double ma2=iMA(NULL,TimeFrame,LSMAPeriod,0,MODE_LWMA,LSMAPrice,shift);
   wt = MathFloor((3.0*ma2-2.0*ma1)/Point)*Point;
   return(wt);
  } 

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
double divergence(int F_Period, int S_Period, int F_Price, int S_Price, int mypos)
  {
    int i;

    double maF1, maF2, maS1, maS2;
    double dv1, dv2;

    maF1 = iMA(Symbol(), 0, F_Period, 0, MODE_SMA, F_Price, mypos);
    maS1 = iMA(Symbol(), 0, S_Period, 0, MODE_SMA, S_Price, mypos);
    dv1 = (maF1 - maS1);

    maF2 = iMA(Symbol(), 0, F_Period, 0, MODE_SMA, F_Price, mypos + 1);
    maS2 = iMA(Symbol(), 0, S_Period, 0, MODE_SMA, S_Price, mypos + 1);
    dv2 = ((maF1 - maS1) - (maF2 - maS2));

    return(dv1 - dv2);
  }