mql5/Experts/_Architecture/Trade/Trackers/OrderTracker.mqh

//+------------------------------------------------------------------+
//|                                                 OrderTracker.mqh |
//|                                  Copyright 2025, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, MetaQuotes Ltd."
#property link      "https://www.mql5.com"
#property version   "1.00"

#include "../../Events/EventBus/EventBus.mqh"
#include "../../Events/Events/TradingEvents.mqh"
#include <Collection/DynamicArrayList.mqh>

struct PendingOrderRecord
  {
   ulong             ticket;
   string            symbol;
   ENUM_ORDER_TYPE   type;
   double            volume;
   double            price;
   double            sl;
   double            tp;
   datetime          expiration;
   string            comment;
   datetime          placedTime;
  };

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
class OrderTracker : public IEventListener
  {
private:
   EventBus*            m_bus;
   CArrayList<PendingOrderRecord> m_orders;

   int               FindIndex(ulong ticket)
     {
      for(int i = 0; i < m_orders.Size(); i++)
         if(m_orders.At(i).ticket == ticket)
            return i;
      return -1;
     }
public:
                     OrderTracker() {}
                    ~OrderTracker() {}
   void              Initialize(EventBus* bus) { m_bus = bus; }

   virtual void      OnEvent(AbstractEvent* event) override
     {     
      if(event.GetType() == PENDING_ORDER_PLACED)
        {
         PendingOrderPlacedEvent* e = (PendingOrderPlacedEvent*)event;

         PendingOrderRecord order;
         order.ticket    = e.GetTicket();
         order.symbol    = e.GetSymbolName();
         order.type      = e.GetTypeOrder();
         order.volume    = e.GetVolume();
         order.price     = e.GetPrice();
         order.sl        = e.GetSL();
         order.tp        = e.GetTP();
         order.expiration = e.GetExpiration();
         order.comment   = e.GetComment();
         order.placedTime = TimeCurrent();

         m_orders.Add(order);
          

        }
     }

   int               GetPendingCount(string symbol = NULL)
     {

     if(symbol == NULL) return m_orders.Size();
     
      int cnt = 0;
      for(int i = 0; i <  m_orders.Size(); i++)
         if(m_orders.At(i).symbol == symbol) cnt++;
         
      return cnt;
     }
  };
//+------------------------------------------------------------------+