mql5/Experts/_FrameWork/Analysers/Liquidity/EqualLiquidity.mqh

//+------------------------------------------------------------------+
//|                                               EqualLiquidity.mqh |
//|                                 Copyright 2026, Concrete Goonies |
//|                                 https://concrete-goonies.web.app |
//+------------------------------------------------------------------+
#property copyright "Copyright 2026, Concrete Goonies"
#property link      "https://concrete-goonies.web.app"
#property version   "1.00"

#include "AbstractLiquidity.mqh"

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
class EqualLiquidity : public AbstractLiquidity {
private:
   bool              HasRequiredInternalSwingsForEqh(datetime leftIndex, datetime rightIndex) {
      return CountSwingHighsBetween(leftIndex, rightIndex) > configs.eqConfigs.minSwingCount;
   }

   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+
   bool              HasRequiredInternalSwingsForEql(datetime leftIndex, datetime rightIndex) {
      return CountSwingLowsBetween(leftIndex, rightIndex) > configs.eqConfigs.minSwingCount;
   }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+

   bool              IsCleanEQH(datetime leftTime, datetime rightTime, double pointAPrice, double tolerance) {
      if(leftTime >= rightTime)
         return false;

      // If any historical swing high between the two points exceeded the threshold, invalidate EQH
      for(int i = 0; i < state.m_swingHighs.Size(); i++) {
         TimePrice sh = state.m_swingHighs.At(i);
         if(sh.x > leftTime && sh.x < rightTime) {
            if(sh.y > pointAPrice + tolerance)
               return false;
         }
      }
      return true;
   }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+
   bool              IsCleanEQL(datetime leftTime, datetime rightTime, double pointAPrice, double tolerance) {
      if(leftTime >= rightTime)
         return false;

      // If any historical swing low between the two points fell below the threshold, invalidate EQL
      for(int i = 0; i < state.m_swingLows.Size(); i++) {
         TimePrice sl = state.m_swingLows.At(i);
         if(sl.x > leftTime && sl.x < rightTime) {
            if(sl.y < pointAPrice - tolerance)
               return false;
         }
      }
      return true;
   }
   //+------------------------------------------------------------------+
   //|                                                                  |
   //+------------------------------------------------------------------+
public:
                     EqualLiquidity() {}
                    ~EqualLiquidity() {}

   virtual string    GetAnalyserName() override {
      return "EqualLiquidity";
   }


//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
   virtual void      OnSwing(TimePrice &swing, bool isHigh)override {
      double tolerance = configs.eqConfigs.tolerance;
      int maxTimeDiff = configs.eqConfigs.lookBack ;

      if(isHigh) {
         for(int i = 0; i < state.m_swingHighs.Size() - 1; i++) {
            TimePrice oldSwing = state.m_swingHighs.At(i);
            if(oldSwing.x == swing.x)
               break;

            int k = Bars(bar.symbol, bar.tf, oldSwing.x, swing.x);
            if(k > maxTimeDiff)
               continue;

            if(!NearPrice(oldSwing.y, swing.y, tolerance))
               continue;

            if(!HasRequiredInternalSwingsForEqh(oldSwing.x, swing.x))
               continue;

            if(!IsCleanEQH(oldSwing.x, swing.x, oldSwing.y, tolerance))
               continue;

            string name = "EQH_" + IntegerToString((int)oldSwing.x) + "_" +  IntegerToString((int)swing.x);

            // CreateTrendL(name, oldSwing.x, oldSwing.y, swing.x, swing.y, clrRed);
            EqualLiquidityEvent* e = new EqualLiquidityEvent(bar.symbol, bar.tf, BSL, oldSwing.x, oldSwing.y, swing.x, swing.y);
            eventBus.Push(e);

         }
      } else {
         for(int i = 0; i < state.m_swingLows.Size() - 1; i++) {
            TimePrice oldSwing = state.m_swingLows.At(i);
            if(oldSwing.x == swing.x)
               break;

            int k = Bars(bar.symbol, bar.tf, oldSwing.x, swing.x);
            if(k > maxTimeDiff)
               continue;

            if(!NearPrice(oldSwing.y, swing.y, tolerance))
               continue;

            if(!HasRequiredInternalSwingsForEql(oldSwing.x, swing.x))
               continue;

            if(!IsCleanEQL(oldSwing.x, swing.x, oldSwing.y, tolerance))
               continue;

            string name = "EQL_" + IntegerToString((int)oldSwing.x) + "_" +  IntegerToString((int)swing.x);
            //  CreateTrendL(name, oldSwing.x, oldSwing.y, swing.x, swing.y, clrDodgerBlue);

            EqualLiquidityEvent* e = new EqualLiquidityEvent(bar.symbol, bar.tf, SSL, oldSwing.x, oldSwing.y, swing.x, swing.y);
            eventBus.Push(e);
         }
      }

   }

};
//+------------------------------------------------------------------+