//+------------------------------------------------------------------+
//|                                                    Sequence.mq5 |
//|                                                  Henrique Vilela |
//|                                               http://vilela.one/ |
//+------------------------------------------------------------------+
#property copyright "Henrique Vilela"
#property link      "http://vilela.one/"
#property version   "1.00"

#property indicator_chart_window

#property indicator_buffers 3
#property indicator_plots   3

#property indicator_label1  "Sell"
#property indicator_type1   DRAW_ARROW
#property indicator_color1  clrRed
#property indicator_style1  STYLE_SOLID
#property indicator_width1  1

#property indicator_label2  "Buy"
#property indicator_type2   DRAW_ARROW
#property indicator_color2  clrDodgerBlue
#property indicator_style2  STYLE_SOLID
#property indicator_width2  1

double         SellBuffer[];
double         BuyBuffer[];

double         SequenceBuffer[];

input ushort   Account=3; // Accountgem

input int    TriggerCandle 	= 1;
input bool   EnableNativeAlerts = true;
input bool   EnableSoundAlerts  = true;
input bool   EnableEmailAlerts  = true;
input bool   EnablePushAlerts  = true;
input string AlertEmailSubject  = "";
input string AlertText  	= "";
input string SoundFileName	= "alert.wav";

datetime LastAlertTime = D'01.01.1970';
int LastAlertDirection = 0;


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int OnInit()
  {
   SetIndexBuffer(0,SellBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,BuyBuffer,INDICATOR_DATA);
   SetIndexBuffer(2,SequenceBuffer,INDICATOR_DATA);

   PlotIndexSetInteger(0,PLOT_ARROW,234);
   PlotIndexSetInteger(1,PLOT_ARROW,233);

   PlotIndexSetInteger(0,PLOT_ARROW_SHIFT,-10);
   PlotIndexSetInteger(1,PLOT_ARROW_SHIFT,10);

   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
   for(int i=MathMax(1,prev_calculated-1); i<rates_total; i++)
     {
      if(close[i]>open[i]) // Positivo
        {

         if(close[i-1]<open[i-1]) // Anterior Positivo
           {
            SequenceBuffer[i]=SequenceBuffer[i-1]+1;
           }
         else  // Anterior Negativo
           {
            SequenceBuffer[i]=0;
           }
        }
      else if(close[i]<open[i]) // Negativo
        {
         if(close[i-1]>open[i-1]) //  // Anterior Negativo
           {
            SequenceBuffer[i]=SequenceBuffer[i-1]+1;
           }
         else  // Anterior Positivo
           {
            SequenceBuffer[i]=0;
           }
        }
      else // Doji (nem positivo, nem negativo)
        {
         SequenceBuffer[i]=0;
        }

      BuyBuffer[i]= SequenceBuffer[i] == Account ? low[i] : EMPTY_VALUE;
      SellBuffer[i] = -SequenceBuffer[i] == Account ? high[i] : EMPTY_VALUE;
      }


   if (((TriggerCandle > 0) && (time[rates_total - 1] > LastAlertTime)) || (TriggerCandle == 0))
{

    string Text;

	if (BuyBuffer[rates_total - 1 - TriggerCandle] == Account)
	{
		Text = AlertText + "CCI Arrows: " + Symbol() + " - " + EnumToString(Period()) + " - Up.";
		if (EnableNativeAlerts) Alert(Text);
		if (EnableEmailAlerts) SendMail(AlertEmailSubject + "CCI Arrows Alert", Text);
		if (EnableSoundAlerts) PlaySound(SoundFileName);
		if (EnablePushAlerts) SendNotification(Text);
		LastAlertTime = time[rates_total - 1];
		LastAlertDirection = 1;
	}
}

   return(rates_total);
  }
//+------------------------------------------------------------------+