//+------------------------------------------------------------------+
//|                                                  jurik addsignal |
//|                                                  original idea by|
//|                                                  igorad          |
//+------------------------------------------------------------------+
#property copyright "www.forex-tsd.com"
#property link      "www.forex-tsd.com"

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Aqua
#property indicator_color2 Red

//
//
//
//
//
 
extern string x               = "Jurik Settings";
extern int    JurikPrice      = 8;
extern int    Length          = 100;
extern int    Phase           = 0;
extern bool   Double          = false;

extern string xx              = "Jurik STC Settings";
extern int    STCPeriod       = 10;
extern int    STCPrice        = 8;
extern int    FastMAPeriod    = 23;
extern int    FastMAPhase     = 0;
extern int    SlowMAPeriod    = 50;
extern int    SlowMAPhase     = 0;
extern int    FilterMode      = 3;

extern string N_RSXPeriod     = "JRSX Settings";
extern int    RsxLength       = 14;
extern int    Price           = 8;
extern int    SmoothLength    = 2;
extern int    SmoothPhase     = 0;
extern bool   SmoothDouble    = false;

extern string note7           = "Arrow Type";
extern string note8           = "0=Thick, 1=Thin, 2=Hollow, 3=Round";
extern string note9           = "4=Fractal, 5=Diagonal Thin";
extern string note10          = "6=Diagonal Thick, 7=Diagonal Hollow";
extern string note11          = "8=Thumb, 9=Finger";
extern int    ArrowType       = 1;
extern int    arrowsize       = 1;

extern string note            = "turn on Alert = true; turn off = false";
extern bool   alertsOn        = true;
extern bool   alertsOnCurrent = true;
extern bool   alertsMessage   = true;
extern bool   alertsSound     = true;
extern bool   alertsEmail     = false;
extern string soundfile       = "alert2.wav";

//
//
//
//
//

double CrossUp[];
double CrossDn[]; 
double trend[];

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
//

int init()
{
    switch(ArrowType)
   {
      case 0  : int arrowUp = 119; int arrowDn = 119; break;
      case 1  :     arrowUp = 233;     arrowDn = 234; break;
      case 2  :     arrowUp = 225;     arrowDn = 226; break;
      case 3  :     arrowUp = 241;     arrowDn = 242; break;
      case 4  :     arrowUp = 221;     arrowDn = 222; break;
      case 5  :     arrowUp = 217;     arrowDn = 218; break;
      case 6  :     arrowUp = 228;     arrowDn = 230; break;
      case 7  :     arrowUp = 236;     arrowDn = 238; break;
      case 8  :     arrowUp = 246;     arrowDn = 248; break;
      case 9  :     arrowUp =  67;     arrowDn =  68; break;
      case 10 :     arrowUp =  71;     arrowDn =  72; break;
   } 
   IndicatorBuffers(3);   
   SetIndexBuffer(0,CrossUp); SetIndexStyle(0,DRAW_ARROW,0,arrowsize); SetIndexArrow(0,arrowUp);   
   SetIndexBuffer(1,CrossDn); SetIndexStyle(1,DRAW_ARROW,0,arrowsize); SetIndexArrow(1,arrowDn); 
   SetIndexBuffer(2,trend);

   return(0);
}

//
//
//
//
//

int deinit() {   return(0); }

//+------------------------------------------------------------------+
//|                                                                                         
//+------------------------------------------------------------------+
//
//

int start()
{
   int counted_bars=IndicatorCounted();
   int limit;
   
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
        limit=MathMin(Bars-counted_bars,Bars-1);
   //
   //
   //
   //
   //
   
   for(int i=limit; i>=0; i--)
   { 
      double RSI0    = iCustom(Symbol(),0,"rsx on jurik smooth",RsxLength,Price,SmoothLength,SmoothPhase,SmoothDouble,0,i);
      double haMA1   = iDSmooth(getPrice(JurikPrice,i),Length,Phase,Double,i,   0);
      double haMA2   = iDSmooth(getPrice(JurikPrice,i),Length,Phase,Double,i+1,20);
      double MACD    = iCustom(Symbol(),0,"jurik STC nrp",STCPeriod,STCPrice,FastMAPeriod,FastMAPhase,SlowMAPeriod,SlowMAPhase,FilterMode,0,i);
      double SigMACD = iCustom(Symbol(),0,"jurik STC nrp",STCPeriod,STCPrice,FastMAPeriod,FastMAPhase,SlowMAPeriod,SlowMAPhase,FilterMode,0,i+1);
   
            trend[i] = trend[i+1]; 
            if (RSI0 > 50 && haMA1 > haMA2 && MACD > SigMACD) trend[i]= 1; 
            if (RSI0 < 50 && haMA1 < haMA2 && MACD < SigMACD) trend[i]=-1;
            
            CrossUp[i] = EMPTY_VALUE;
            CrossDn[i] = EMPTY_VALUE;
            if (trend[i] !=trend[i+1])
            if (trend[i] == 1)
                  CrossUp[i] = Low[i]  - iATR(NULL,0,20,i)/2.0;
            else  CrossDn[i] = High[i] + iATR(NULL,0,20,i)/2.0;
            }
            
    
      
            //
            //
            //
            //
            //
               
            if (alertsOn)
            {
            if (alertsOnCurrent)
                 int whichBar = 0;
            else     whichBar = 1;

            //
            //
            //
            //
            //
         
            if (trend[whichBar] != trend[whichBar+1])
            if (trend[whichBar] == 1)
                  doAlert("buy");
            else  doAlert("sell");       
   }
return(0);           
}

//------------------------------------------------------------------
//
//------------------------------------------------------------------
//
//
//
//
//

void doAlert(string doWhat)
{
   static string   previousAlert="nothing";
   static datetime previousTime;
   string message;
   
      if (previousAlert != doWhat || previousTime != Time[0]) {
          previousAlert  = doWhat;
          previousTime   = Time[0];

          //
          //
          //
          //
          //

          message =  StringConcatenate(Symbol()," at ",TimeToStr(TimeLocal(),TIME_SECONDS)," jurik addsignal ",doWhat);
             if (alertsMessage) Alert(message);
             if (alertsEmail)   SendMail(StringConcatenate(Symbol()," jurik addsignal "),message);
             if (alertsSound)   PlaySound(soundfile);
      }
}
  

//+------------------------------------------------------------------
//|                                                                  
//+------------------------------------------------------------------
//
//
//
//
//
//

double getPrice(int type, int i)
{
   switch (type)
   {
      case 7:     return((Open[i]+Close[i])/2.0);
      case 8:     return((Open[i]+High[i]+Low[i]+Close[i])/4.0);
      default :   return(iMA(NULL,0,1,0,MODE_SMA,type,i));
   }      
}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
//
//
//
//
//

double wrk[][40];

#define bsmax  5
#define bsmin  6
#define volty  7
#define vsum   8
#define avolty 9

//
//
//
//
//

double iDSmooth(double price, double length, double phase, bool isDouble, int i, int s=0)
{
   if (isDouble)
         return (iSmooth(iSmooth(price,MathSqrt(length),phase,i,s),MathSqrt(length),phase,i,s+10));
   else  return (iSmooth(price,length,phase,i,s));
}

//
//
//
//
//

double iSmooth(double price, double length, double phase, int i, int s=0)
{
   if (length <=1) return(price);
   if (ArrayRange(wrk,0) != Bars) ArrayResize(wrk,Bars);
   
   int r = Bars-i-1; 
      if (r==0) { for(int k=0; k<7; k++) wrk[r][k+s]=price; for(; k<10; k++) wrk[r][k+s]=0; return(price); }

   //
   //
   //
   //
   //
   
      double len1   = MathMax(MathLog(MathSqrt(0.5*(length-1)))/MathLog(2.0)+2.0,0);
      double pow1   = MathMax(len1-2.0,0.5);
      double del1   = price - wrk[r-1][bsmax+s];
      double del2   = price - wrk[r-1][bsmin+s];
      double div    = 1.0/(10.0+10.0*(MathMin(MathMax(length-10,0),100))/100);
      int    forBar = MathMin(r,10);
	
         wrk[r][volty+s] = 0;
               if(MathAbs(del1) > MathAbs(del2)) wrk[r][volty+s] = MathAbs(del1); 
               if(MathAbs(del1) < MathAbs(del2)) wrk[r][volty+s] = MathAbs(del2); 
         wrk[r][vsum+s] =	wrk[r-1][vsum+s] + (wrk[r][volty+s]-wrk[r-forBar][volty+s])*div;
         
         //
         //
         //
         //
         //
   
         wrk[r][avolty+s] = wrk[r-1][avolty+s]+(2.0/(MathMax(4.0*length,30)+1.0))*(wrk[r][vsum+s]-wrk[r-1][avolty+s]);
            if (wrk[r][avolty+s] > 0)
               double dVolty = wrk[r][volty+s]/wrk[r][avolty+s]; else dVolty = 0;   
	               if (dVolty > MathPow(len1,1.0/pow1)) dVolty = MathPow(len1,1.0/pow1);
                  if (dVolty < 1)                      dVolty = 1.0;

      //
      //
      //
      //
      //
	        
   	double pow2 = MathPow(dVolty, pow1);
      double len2 = MathSqrt(0.5*(length-1))*len1;
      double Kv   = MathPow(len2/(len2+1), MathSqrt(pow2));

         if (del1 > 0) wrk[r][bsmax+s] = price; else wrk[r][bsmax+s] = price - Kv*del1;
         if (del2 < 0) wrk[r][bsmin+s] = price; else wrk[r][bsmin+s] = price - Kv*del2;
	
   //
   //
   //
   //
   //
      
      double R     = MathMax(MathMin(phase,100),-100)/100.0 + 1.5;
      double beta  = 0.45*(length-1)/(0.45*(length-1)+2);
      double alpha = MathPow(beta,pow2);

         wrk[r][0+s] = price + alpha*(wrk[r-1][0+s]-price);
         wrk[r][1+s] = (price - wrk[r][0+s])*(1-beta) + beta*wrk[r-1][1+s];
         wrk[r][2+s] = (wrk[r][0+s] + R*wrk[r][1+s]);
         wrk[r][3+s] = (wrk[r][2+s] - wrk[r-1][4+s])*MathPow((1-alpha),2) + MathPow(alpha,2)*wrk[r-1][3+s];
         wrk[r][4+s] = (wrk[r-1][4+s] + wrk[r][3+s]); 

   //
   //
   //
   //
   //

   return(wrk[r][4+s]);
}