mk_bos_choch/MK_BOS_CHOCH.mq5

//+------------------------------------------------------------------+
//|                                                 MK_BOS_CHOCH.mq5 |
//|                                  Copyright 2023, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2023, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

sinput string              str = "<><><><><><> Object Name <><><><><><>";
input string object_name = "line";

string trend;
bool bearish_found = false;
bool bullish_found = false;
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
void foo(int index)
  {
   if(checkCandle(index) == "Bullish")
     {
      trend = "uptrend";
      double high,low = 0.0;


      // to store high and low of the value after the object
      high = iHigh(Symbol(),PERIOD_CURRENT,index-1);

      //low =  iLow(Symbol(),PERIOD_CURRENT,index-1);

      for(int i=index - 2 ; i > 0; i--)
        {
         double high1 = iHigh(Symbol(),PERIOD_CURRENT,i);

         //double low1  = iLow(Symbol(),PERIOD_CURRENT,i);

         if(high1 > high)
           {
            high = high1;
            int count = (index-1) - i;

            Print("count",count);


            for(int j=1; j < count; j++)
              {

               if(checkCandle(index-j) == "Bearish")
                 {
                  low =  iLow(Symbol(),PERIOD_CURRENT,index-1);
                  bearish_found = true;
                 }

              }

            if(bearish_found == true)
              {
               double low1;
               for(int k=1; k <= count; k++)
                 {
                  low1 = iLow(Symbol(),PERIOD_CURRENT,index - k);
                  if(low1 < low)
                    {
                     low = low1;
                    }
                 }
               bearish_found = false;

              }


           }


        }

      Print(" high price is ", high);
      Print("low price is ", low);

     }

   if(checkCandle(index) == "Bearish")
     {
      trend = "downtrend";
      double high,low = 0.0;


      // to store high and low of the value after the object
      low = iLow(Symbol(),PERIOD_CURRENT,index-1);

      //low =  iLow(Symbol(),PERIOD_CURRENT,index-1);

      for(int i=index - 2 ; i > 0; i--)
        {
         double low1 = iLow(Symbol(),PERIOD_CURRENT,i);

         //double low1  = iLow(Symbol(),PERIOD_CURRENT,i);

         if(low1 < low)
           {
            low = low1;
            int count = (index-1) - i;

            Print("count",count);


            for(int j=1; j < count; j++)
              {

               if(checkCandle(index-j) == "Bullish")
                 {
                  high =  iHigh(Symbol(),PERIOD_CURRENT,index-1);
                  bullish_found = true;
                 }

              }

            if(bullish_found == true)
              {
               double high1;
               for(int k=1; k <= count; k++)
                 {
                  high1 = iHigh(Symbol(),PERIOD_CURRENT,index - k);
                  if(high1 > high)
                    {
                     high = high1;
                    }
                 }
               bullish_found = false;

              }


           }


        }
      Print(" high price is ", high);
      Print("low price is ", low);

     }

  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int OnInit()
  {

   //ObjectCreate(0,"line",OBJ_VLINE,0,D'2023.08.01 10:00:27',0);
   object_find(object_name);
//Print(ObjectFind(0,"line"));  // to find the object drawn on the chart

   if(object_find(object_name) == true)
     {


      datetime time_of_candle = (datetime)ObjectGetInteger(0,"line",OBJPROP_TIME,0);
      Print("time is " , time_of_candle);

      int index = iBarShift(0, PERIOD_CURRENT,time_of_candle, true);
      Print("index is " , index);
      foo(index);

     }
   else
     {
      Print("Object Not Found");
     }



   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---

  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {



  }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool object_find(string obj)    // to find object placed by user in the chart
  {
   if(ObjectFind(0,obj) >= 0)
     {
      return true;
     }
   return false;

  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
string checkCandle(int i)  // to check the candle is bullish or bearish
  {
   double  close = iClose(Symbol(),PERIOD_CURRENT,i);
   double  open  = iOpen(Symbol(),PERIOD_CURRENT,i);

   if(close > open)
     {
      return "Bullish";
     }
   else
      if(close < open)
        {
         return "Bearish";
        }
   return "empty";
  }
//+------------------------------------------------------------------+