//+------------------------------------------------------------------+
//|                                                    Fomations.mqh |
//|                                  Copyright 2024, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2024, MetaQuotes Ltd."
#property link      "https://www.mql5.com"

#include <FormationContainers.mqh>

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+

void FormationTesting(const string symbol,const ENUM_TIMEFRAMES tf,FormArray &array,const int index){
   for(uint i = 0,size = array.size();i < size;i++){
      if(::iTime(symbol,tf,index) <= array[i]._time)
         continue;
      if(array[i]._isTested)
         continue;
      
      if(array[i]._isUp){
         if((::iLow(symbol,tf,index) > array[i]._low_level_renge && ::iLow(symbol,tf,index) < array[i]._high_level_renge) || 
            (::iLow(symbol,tf,index) < array[i]._low_level_renge && ::iClose(symbol,tf,index) > array[i]._low_level_renge))
               array[i]._isTested = true;
         if(::iLow(symbol,tf,index) < array[i]._low_level_renge && ::iClose(symbol,tf,index) < array[i]._low_level_renge){
            if(array[i]._type_formation == FORMATION_VALUE_GAP)
               array[i]._isTested = true;
            else
               array[i]._isUp = false;
         }
      }
      else{
         if((::iHigh(symbol,tf,index) < array[i]._high_level_renge && ::iHigh(symbol,tf,index) > array[i]._low_level_renge) || 
            (::iHigh(symbol,tf,index) > array[i]._high_level_renge && ::iClose(symbol,tf,index) < array[i]._high_level_renge))
               array[i]._isTested = true;
         if(::iHigh(symbol,tf,index) > array[i]._high_level_renge && ::iClose(symbol,tf,index) > array[i]._high_level_renge){
            if(array[i]._type_formation == FORMATION_VALUE_GAP)
               array[i]._isTested = true;
            else
               array[i]._isUp = true;
         }
      }
   }
}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void FormationCleaner(const double equator,
                      const double low,
                      const double high,
                      FormArray &array)
{

   if(array.isEmpty())
      return;

   for(uint i = 0,size = array.size();i < size;i++) {
      if(array[i]._isTested)
         array.remove(i);
      if(array[i]._isUp) {
         if(array[i]._low_level_renge < low || array[i]._high_level_renge > equator)
            array.remove(i);
      }
      if(!array[i]._isUp) {
         if(array[i]._low_level_renge < equator || array[i]._high_level_renge > high)
            array.remove(i);
      }
      if(array[i]._high_level_renge <= 0 || array[i]._low_level_renge <= 0 || array[i]._time == 0)
         array.remove(i);
   }

}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void FormationFind(const string symbol,
                   const ENUM_TIMEFRAMES tf,
                   const datetime StartTime,
                   const datetime EndTime,
                   FormArray &array)
{

   int start_index = 0;
   int end_index = 0;

   for(int i = 0,size = ::iBars(symbol,tf);i < size;i++) {
      if(::iTime(symbol,tf,i) <= StartTime) {
         start_index = i;
         break;
      }
   }
   for(int i = 0,size = ::iBars(symbol,tf);i < size;i++) {
      if(::iTime(symbol,tf,i) <= EndTime) {
         end_index = i;
         break;
      }
   }

   if(start_index <= 0 && end_index <= 0)
      return;

// проверочный принт
// Print("StartIndex = ", start_index,"EndIndex = ",end_index);
   double h_level = 0.0, l_level = 0.0;
   for(int i = start_index; i > end_index; i--) {
      if(!array.isEmpty()){
         FormationTesting(symbol,tf,array,i);
      }
      if(IsBockenVolumeUp(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_VALUE_GAP;
         form._isUp = true;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
      if(IsBockenVolumeDn(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_VALUE_GAP;
         form._isUp = false;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
      if(IsInsideBarUp(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_INSIDE_BAR;
         form._isUp = true;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
      if(IsInsideBarDn(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_INSIDE_BAR;
         form._isUp = false;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
      if(IsAbsorbingDn(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_ABSORBING;
         form._isUp = false;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
      if(IsAbsorbingUp(symbol,tf,i,h_level,l_level)) {
         Formation form;
         form._type_formation = FORMATION_ABSORBING;
         form._isUp = true;
         form._isTested = false;
         form._high_level_renge = h_level;
         form._low_level_renge = l_level;
         form._time = ::iTime(symbol,tf,i);
         form.setEquator();
         array.append(form);
      }
   }
}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
/*void FormationFind(const string symbol,
                   const ENUM_TIMEFRAMES tf,
                   FormArray &array)
{


   double h_level = 0.0, l_level = 0.0;
   if(IsBockenVolumeUp(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_VALUE_GAP;
      form._isUp = true;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
   if(IsBockenVolumeDn(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_VALUE_GAP;
      form._isUp = false;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
   if(IsInsideBarUp(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_INSIDE_BAR;
      form._isUp = true;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
   if(IsInsideBarDn(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_INSIDE_BAR;
      form._isUp = false;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
   if(IsAbsorbingDn(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_ABSORBING;
      form._isUp = false;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
   if(IsAbsorbingUp(symbol,tf,1,h_level,l_level)) {
      Formation form;
      form._type_formation = FORMATION_ABSORBING;
      form._isUp = true;
      form._isTested = false;
      form._high_level_renge = h_level;
      form._low_level_renge = l_level;
      form._time = ::iTime(symbol,tf,1);
      form.setEquator();
      array.append(form);
   }
}*/

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsAbsorbingUp(const string symbol,const ENUM_TIMEFRAMES tf,const int index,double &h,double &l)
{

   int end = index + 1;

   if(!IsValidData(index,end,2))
      return false;

   double open,close,preOpen,preClose;
   open = ::iOpen(symbol,tf,index);
   close = ::iClose(symbol,tf,index);
   preOpen = ::iOpen(symbol,tf,end);
   preClose = ::iClose(symbol,tf,end);

   if(preOpen > preClose && open < close) {
      if(DistPrices(open,close,symbol) > DistPrices(preOpen,preClose,symbol)) {
         if(preOpen <= close && preClose >= open) {
            h = preOpen;
            l = ::iLow(symbol,tf,index);
            return true;
         }
      }
   }

   return false;
}
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsAbsorbingDn(const string symbol,const ENUM_TIMEFRAMES tf,const int index,double &h,double &l)
{

   int end = index + 1;

   if(!IsValidData(index,end,2))
      return false;

   double open,close,preOpen,preClose;
   open = ::iOpen(symbol,tf,index);
   close = ::iClose(symbol,tf,index);
   preOpen = ::iOpen(symbol,tf,end);
   preClose = ::iClose(symbol,tf,end);

   if(preOpen < preClose && open > close) {
      if(DistPrices(open,close,symbol) > DistPrices(preOpen,preClose,symbol)) {
         if(preOpen >= close && preClose <= open) {
            h = ::iHigh(symbol,tf,index);
            l = preOpen;
            return true;
         }
      }
   }

   return false;
}

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsBockenVolumeUp(const string symbol,
                      const ENUM_TIMEFRAMES tf,
                      const int index,
                      double &h,
                      double &l,
                      const int min = 0)
{

   int end = index + 2;

   if(!IsValidData(index,end,3))
      return false;

   h = ::iLow(symbol,tf,index);
   l = ::iHigh(symbol,tf,end);

   if(h > l) {
      double point = ::SymbolInfoDouble(symbol,SYMBOL_POINT);
      if(h  - l >= min * point)
         return true;
   }

   return false;

}


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsBockenVolumeDn(const string symbol,
                      const ENUM_TIMEFRAMES tf,
                      const int index,
                      double &h,
                      double &l,
                      const int min = 0)
{

   int end = index + 2;

   if(!IsValidData(index,end,3))
      return false;

   l = ::iLow(symbol,tf,end);
   h = ::iHigh(symbol,tf,index);

   if(l > h) {
      double point = ::SymbolInfoDouble(symbol,SYMBOL_POINT);
      if(h  - l >= min * point)
         return true;
   }

   return false;

}

//+------------------------------------------------------------------+

/*bool isCloseGapClosingUp(const int begin,const int end){

   if(!IsValidData(begin,end,4))
      return false;
   if(!IsBockenVolumeUp(begin))
      return false;

   for(int i = begin - 2;i >= end;i++){
      if(IsBockenVolumeUp(i)){
         double level = ::iHigh(_Symbol,PERIOD_CURRENT,i);
         double volume= ::iHigh(_Symbol,PERIOD_CURRENT,i + 2);
         for(int y = i - 1;y >= end;i--){
            if(::iOpen(_Symbol,PERIOD_CURRENT,y) < ::iClose(_Symbol,PERIOD_CURRENT,y)){
               if(::iLow(_Symbol,PERIOD_CURRENT,y) <= volume && ::iClose(_Symbol,PERIOD_CURRENT,y) > level)
                  return true;
               else
                  continue;
            }
            else
               continue;
         }
      }
      else
         continue;
   }

   return false;
}

//+------------------------------------------------------------------+

bool isCloseGapClosingDn(const int begin,const int end){

   if(!IsValidData(begin,end,4))
      return false;
   if(!IsBockenVolumeDn(begin,end))
      return false;

   for(int i = begin - 2;i >= end;i++){
      if(IsBockenVolumeDn(i,i+2)){
         double level = ::iLow(_Symbol,PERIOD_CURRENT,i);
         double volume= ::iLow(_Symbol,PERIOD_CURRENT,i + 2);
         for(int y = i - 1;y >= end;i--){
            if(::iOpen(_Symbol,PERIOD_CURRENT,y) > ::iClose(_Symbol,PERIOD_CURRENT,y)){
               if(::iLow(_Symbol,PERIOD_CURRENT,y) >= volume && ::iClose(_Symbol,PERIOD_CURRENT,y) < level)
                  return true;
               else
                  continue;
            }
            else
               continue;
         }
      }
      else
         continue;
   }

   return false;
}*/

//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsInsideBarDn(const string symbol,
                   const ENUM_TIMEFRAMES tf,
                   const int index,
                   double &h,
                   double &l)
{

   int end = index + 2;
   int bar = index + 1;

   if(!IsValidData(index,end,3))
      return false;

   double open,close,open1,close1,open2,close2;
   open = ::iOpen(symbol,tf,index);
   close = ::iClose(symbol,tf,index);
   open1 = ::iOpen(symbol,tf,bar);
   close1 = ::iClose(symbol,tf,bar);
   open2 = ::iOpen(symbol,tf,end);
   close2 = ::iClose(symbol,tf,end);

   if(open < close && open1 > close1 && open2 < close2) {
      if(DistPrices(open1,close1,symbol) < DistPrices(open,close,symbol)
         && DistPrices(open1,close1,symbol) < DistPrices(open2,close2,symbol)) {

         if(close1 >= open && close1 >= open2 && open1 <= close && open1 <= close2) {
            h = ::iHigh(symbol,tf,bar);
            l = ::iLow(symbol,tf,bar);
            return true;
         }
      }
   }


   return false;
}

//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsInsideBarUp(const string symbol,
                   const ENUM_TIMEFRAMES tf,
                   const int index,
                   double &h,
                   double &l)
{

   int end = index + 2;
   int bar = index + 1;

   if(!IsValidData(index,end,3))
      return false;

   double open,close,open1,close1,open2,close2;
   open = ::iOpen(symbol,tf,index);
   close = ::iClose(symbol,tf,index);
   open1 = ::iOpen(symbol,tf,bar);
   close1 = ::iClose(symbol,tf,bar);
   open2 = ::iOpen(symbol,tf,end);
   close2 = ::iClose(symbol,tf,end);

   if(open > close && open1 < close1 && open2 < close2) {
      if(DistPrices(open1,close1,symbol) < DistPrices(open,close,symbol)
         && DistPrices(open1,close1,symbol) < DistPrices(open2,close2,symbol)) {

         if(close1 <= open && close1 <= open2 && open1 >= close && open1 >= close2) {
            h = ::iHigh(symbol,tf,bar);
            l = ::iLow(symbol,tf,bar);
            return true;
         }
      }
   }


   return false;
}

//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
bool IsValidData(const int begin,const int end,const int formation)
{

   if(begin <= 0) {
      ::Print("Все свечи паттерна должны быть полностью сформированы\nТекущая незакрытая свеча не допускается");
      return false;
   }
   if(begin >= end) {
      ::Print("Указанные индексы не соответсвуют логике");
      return false;
   }
   if(::MathAbs(end - begin) + 1 < formation) {
      //::Print(end," - ",begin," = ",end - begin);
      ::Print("Нехватает свечей для анализа");
      return false;
   }

   return true;
}

//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int DistPrices(double priceA, double priceB, string symbol = NULL)
{
   return (int)(::MathAbs(priceA - priceB) / SymbolInfoDouble(symbol,SYMBOL_POINT));
}
//+------------------------------------------------------------------+