//+-----------------------------------------------------------------------------+
//|                           Firebird v0.65 - MA envelope exhaustion system |
//+-----------------------------------------------------------------------------+
#property copyright "Copyright © 2005, TraderSeven"
#property link      "TraderSeven@gmx.net"
 
//            \\|//             +-+-+-+-+-+-+-+-+-+-+-+             \\|// 
//           ( o o )            |T|r|a|d|e|r|S|e|v|e|n|            ( o o )
//    ~~~~oOOo~(_)~oOOo~~~~     +-+-+-+-+-+-+-+-+-+-+-+     ~~~~oOOo~(_)~oOOo~~~~
// Firebird calculates a 10 day SMA and then shifts it up and down 2% to for a channel.
// For the calculation of this SMA either close (more trades) or H+L (safer trades) is used.
// When the price breaks a band a postion in the opposite of the current trend is taken.
// If the position goes against us we simply open an extra position to average.
// 50% of the trades last a day. 45% 2-6 days 5% longer or just fail.
//
//01010100 01110010 01100001 01100100 01100101 01110010 01010011 01100101 01110110 01100101 01101110 
//----------------------- USER INPUT
extern int MA_length = 10;
extern int MA_timeframe = 30;              // hdb did I add this ? lol
extern int MAtype=0;//0=close, 1=HL		 
extern double Percent = 0.3;
extern int TradeOnFriday =1; // >0 trades on friday
extern int slip = 100;//exits only
extern double Lots = 0.5;
extern int TakeProfit = 34;
extern int Stoploss = 200;// total loss on all open positions in pips
//extern double TrailingStop = 5;
extern int PipStep = 30;//if position goes this amount of pips against you add another.
extern double IncreasementType =0;//0=just add every PipStep,  >0 =OrdersToal()^x *Pipstep
extern int MagicNumber=42345;
extern bool UseTrailingStop = false;
extern int TrailingStop=30;
extern bool UseHourTrade = false;
extern int  FromHourTrade = 8;
extern int  ToHourTrade = 18;

double slBUY=0, slSEL=0, sl=0;
double p;
double Stopper=0;
double KeepStopLoss=0;
double KeepAverage;
double dummy;
double spread=0;
double CurrentPipStep;
int    OrderWatcher=0;
int    myTotal=0;          // hdb
int    cnt=0;
int    total=0;
double LastPrice=0;

//----------------------- MAIN PROGRAM LOOP
int start()
{
if (UseHourTrade){
   if(!(Hour()>=FromHourTrade&&Hour()<=ToHourTrade)){
   Comment("Non-Trading Hours!");
   return(0);
   }
   }
double PriceTarget;
double AveragePrice;
int OpeningDay;

//----------------------- CALCULATE THE NEW PIPSTEP
CurrentPipStep=PipStep;
if(IncreasementType>0)
  {
  CurrentPipStep=MathSqrt(OrdersTotal())*PipStep;
  CurrentPipStep=MathPow(OrdersTotal(),IncreasementType)*PipStep;
  } 
     

/////////////////////////////////////////////////////////////////////////////////////////
// BACKTESTER FIX:  DO NOT PLACE AN ORDER IF WE JUST CLOSED
// AN ORDER WITHIN Period() MINUTES AGO
/////////////////////////////////////////////////////////////////////////////////////////
datetime orderclosetime;
string   rightnow;
int      rightnow2;
int      TheHistoryTotal=HistoryTotal();
int      difference;
int      flag=0;
 
   for(cnt=0;cnt<TheHistoryTotal;cnt++) 
    {
 
    if(OrderSelect(cnt,SELECT_BY_POS,MODE_HISTORY)==true)
       {
        if ( (OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber) )       // hdb - only symbol and magic 
            {
               orderclosetime=OrderCloseTime();
               rightnow=Year()+"-"+Month()+"-"+Day()+" "+Hour()+":"+Minute()+":"+Seconds();
               rightnow2=StrToTime(rightnow);
               difference=rightnow2-orderclosetime;
               if(Period()*60*2>difference) 
                  { // At least 2 periods away!
                   flag=1;   // Throw a flag
                   break;
                  }
              }
         }
     }

/////////////////////////////////////////////////////////////////////////////////////////
if(flag!=1) 
{   
   
//----------------------- ENTER POSITION BASED ON OPEN
OrderWatcher=0;
myTotal=0;
int Direction=0;   //1=long, 11=avoid long, 2=short, 22=avoid short
if (Day()!=5 || TradeOnFriday >0)
{
   total=OrdersTotal();  
   for(cnt=(total-1);cnt>=0;cnt--){
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if ((OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber))  // hdb - only symbol and magic
      {
           LastPrice=OrderOpenPrice();
           myTotal = myTotal +1;  
           Comment("LastPrice= ",DoubleToStr(LastPrice, 10));
           break;
      } 
  }
}

if (myTotal==0) OpeningDay=DayOfYear();

if(MAtype==0)
   {

   double myMA =iMA(NULL,MA_timeframe,MA_length,0,MODE_SMA,PRICE_OPEN,0);
/*  
   Print(" Top, Bid, total ",DoubleToStr(myMA*(1+Percent/100),10),"  ",DoubleToStr(Bid,10)," ", total);
   Print(" Bottom, Ask ",DoubleToStr(myMA*(1-Percent/100),10),"  ",DoubleToStr(Ask,10)," ");   
   Print("Direction= ", Direction);
   Print("LastPrice= ", DoubleToStr(LastPrice,10), " CurrentPipStep*Point = ", DoubleToStr(CurrentPipStep*Point,10));
   Print("Total= ", total, " myTotal= ", myTotal);  
*/
   if((myMA*(1+Percent/100))<Bid && Direction!=22 && (Bid>=(LastPrice+(CurrentPipStep*Point)) || myTotal==0) ) // Go SHORT -> Only sell if >= 30 pips above previous position entry	
 	  {
      OrderSend(Symbol(),OP_SELL,Lots,Bid,slip,Bid+(Stoploss*Point),Bid-(TakeProfit*Point),"",MagicNumber,0,Red);
      OrderWatcher=1;
      Direction=2;
     }   
   if((myMA*(1-Percent/100))>Ask && Direction!=11 && (Ask<=(LastPrice-(CurrentPipStep*Point))|| myTotal==0)) // Go LONG -> Only buy if >= 30 pips below previous position entry	 
     {
      OrderSend(Symbol(),OP_BUY,Lots,Ask,slip,Ask-(Stoploss*Point),Ask+(TakeProfit*Point),"",MagicNumber,0,Blue);
      OrderWatcher=1;
      Direction=1;
     } 
   }     
  
//----------------------- ENTER POSITION BASED ON HIGH/LOW
if(MAtype==1)
  {
   if((iMA(NULL,MA_timeframe,MA_length,0,MODE_SMA,PRICE_HIGH,0)*(1+Percent/100))<Bid && Direction!=22 && (Bid>=(LastPrice+(CurrentPipStep*Point))|| myTotal==0)) // Go SHORT -> Only sell if >= 30 pips above previous position entry	
 	     {
      OrderSend(Symbol(),OP_SELL,Lots,Bid,slip,Bid+(Stoploss*Point),Bid-(TakeProfit*Point),0,0,Red);
      OrderWatcher=1;
      Direction=2;
     }   
  if((iMA(NULL,MA_timeframe,MA_length,0,MODE_SMA,PRICE_LOW,0)*(1-Percent/100))>Ask && Direction!=11 && (Ask<=(LastPrice-(CurrentPipStep*Point))|| myTotal==0)) // Go LONG -> Only buy if >= 30 pips below previous position entry	 
     {
      OrderSend(Symbol(),OP_BUY,Lots,Ask,slip,Ask-(Stoploss*Point),Ask+(TakeProfit*Point),0,0,Blue);
      OrderWatcher=1;
      Direction=1;
     } 
  } 

} // end of flag test                  
//----------------------- CALCULATE AVERAGE OPENING PRICE 
   total=OrdersTotal();
   AveragePrice=0;  
   int myOrderType = -1;            // hdb
   myTotal = 0;                     // hdb - count of relevant trades
  //Print("total= ", total, " OrderWatcher= ", OrderWatcher);    
 if(total>1 && OrderWatcher==1)
 //Comment("yyyyyyyyyy");
   {
     for(cnt=0;cnt<total;cnt++)
     {
       OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);

       if ( (OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber) )  // hdb - only symbol and magic
        {
        AveragePrice=AveragePrice+OrderOpenPrice();
        myOrderType = OrderType();           // hdb - keep order type   
        myTotal = myTotal +1;  
     //   Print("myTotal= ", myTotal, " myOrderType= ", myOrderType);              // hdb - count of relevant trades
        }
     }
   AveragePrice=AveragePrice/MathMax(myTotal,1);        // hdb myTotal
   }
//----------------------- RECALCULATE STOPLOSS & PROFIT TARGET BASED ON AVERAGE OPENING PRICE
// OrderSelect(0, SELECT_BY_POS, MODE_TRADES);   // hdb removed    
    if(myOrderType==OP_BUY  && OrderWatcher==1 && myTotal>1)  // Calculate profit/stop target for long 
      {
      PriceTarget=AveragePrice+(TakeProfit*Point);
      Stopper=AveragePrice-(((Stoploss*Point)/myTotal)); 
      }
    if(myOrderType==OP_SELL && OrderWatcher==1 && myTotal>1) // Calculate profit/stop target for short
      {
      PriceTarget=AveragePrice-(TakeProfit*Point);
      Stopper=AveragePrice+(((Stoploss*Point)/myTotal)); 
      }
//----------------------- IF NEEDED CHANGE ALL OPEN ORDERS TO THE NEWLY CALCULATED PROFIT TARGET    
 if(OrderWatcher==1 && myTotal>1)// check if average has really changed
  { 
    total=OrdersTotal();  
    for(cnt=0;cnt<total;cnt++)
       {
       OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);  
       if ( (OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber))  // hdb - only symbol and magic
          {    
           OrderModify(OrderTicket(),0,Stopper,PriceTarget,0,Yellow);// set all positions to averaged levels
          } 
       } 
  }
//Comment("PriceTarget: ",PriceTarget,"  AveragePrice: ",AveragePrice,"  Total: ",total);
//----------------------- KEEP TRACK OF STOPLOSS TO AVOID RUNAWAY MARKETS
// Sometimes the market keeps trending so strongly the system never reaches it's target.
// This means huge drawdown. After stopping out it falls in the same trap over and over.
// The code below avoids this by only accepting a signal in teh opposite direction after a SL was hit.
// After that all signals are taken again. Luckily this seems to happen rarely. 
if (OrdersTotal()>0)
{
    myOrderType = -1;                // hdb
    myTotal = 0;                     // hdb - count of relevant trades
    total=OrdersTotal();  
    for(cnt=0;cnt<total;cnt++)
    {
       OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);            
       if ( (OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber) )  // hdb - only symbol and magic
       {
            KeepStopLoss=OrderStopLoss();
            AveragePrice=AveragePrice+OrderOpenPrice();
            myTotal = myTotal +1;                // hdb - count of relevant trades
            myOrderType = OrderType();           // hdb - keep order type   
       }
    }
   
   AveragePrice=AveragePrice/MathMax(myTotal,1);        // hdb myTotal
   KeepAverage=AveragePrice;
   Direction =0;
   if(myOrderType==OP_BUY) 
      { Direction=1;  } //long 
     else 
      { if (myOrderType==OP_SELL) Direction=2;  }//short
}

if(KeepStopLoss!=0)
{
  spread=MathAbs(KeepAverage-KeepStopLoss)/2;
  dummy=(Bid+Ask)/2;
  if (KeepStopLoss<(dummy+spread) && KeepStopLoss>(dummy-spread))
  {
     // a stoploss was hit
     if(Direction==1) Direction=11;// no more longs
     if(Direction==2) Direction=22;// no more shorts
  }
  KeepStopLoss=0;
}
      

/* Trailing stop code */
if (UseTrailingStop)
{
 //  p=Point();
   for (cnt=0;cnt<OrdersTotal();cnt++)
   {
      OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
      if( (OrderSymbol()==Symbol()) && (OrderMagicNumber() == MagicNumber) )
      {
          if(OrderType()==OP_BUY)
         {
             if ( Bid - OrderOpenPrice() > (TrailingStop*Point) ) 
             {    
                   slBUY=OrderStopLoss();        
                   sl = Bid-(TrailingStop*Point);
                   if (slBUY < sl)
                   {
                     Print ("TSD trailstop Buy: ", Symbol(), " ", sl, ", ", Bid);
                     OrderModify (OrderTicket(), OrderOpenPrice(), sl, OrderTakeProfit(), 0); 
                   }
              } // if BUY
          }
      
         else if(OrderType()==OP_SELL)
         {
            if (OrderOpenPrice()-Ask > (TrailingStop*Point) ) 
            { 
              slSEL=OrderStopLoss();
              sl = Ask+(TrailingStop*Point);
              if (slSEL > sl) {
                 Print ("TSD trailstop Sell: ", Symbol(), " ", sl, ", ", Ask);
                 OrderModify (OrderTicket(), OrderOpenPrice(), sl, OrderTakeProfit(), 0);
              }
           }
         } //if SELL      
     } // if(OrderSymbol)
   } // for
   } //if TS
}
//----------------------- TO DO LIST
// 1st days profit target is the 30 pip line *not* 30 pips below average as usually. -----> Day()
// Trailing stop -> trailing or S/R or pivot target
// Realistic stop loss
// Avoid overly big positions
// EUR/USD  30 pips / use same value as CurrentPipStep
// GBP/CHF  50 pips / use same value as CurrentPipStep 
// USD/CAD  35 pips / use same value as CurrentPipStep 

//----------------------- OBSERVATIONS
// GBPUSD not suited for this system due to not reversing exhaustions. Maybe use other types of MA
// EURGBP often sharp reversals-> good for trailing stops?
// EURJPY deep pockets needed.