mql5/Include/Experts/Core/EAEvents.mqh

//+------------------------------------------------------------------+
//|                                                  EAEvents.mqh     |
//|                        Copyright 2025, Your Company Name          |
//|                                             https://www.yoursite.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, Your Company Name"
#property link      "https://www.yoursite.com"
#property version   "1.00"
#property strict

#include <Arrays\ArrayObj.mqh>
#include "EALogger.mqh"
#include "EAState.mqh"

//+------------------------------------------------------------------+
//| Event types                                                      |
//+------------------------------------------------------------------+
enum ENUM_EVENT_TYPE
{
   EVENT_TICK,           // New tick event
   EVENT_TIMER,          // Timer event
   EVENT_TRADE,          // Trade event
   EVENT_ORDER,          // Order event
   EVENT_POSITION,       // Position event
   EVENT_SIGNAL          // Signal event
};

//+------------------------------------------------------------------+
//| Base event class                                                 |
//+------------------------------------------------------------------+
class CBaseEvent : public CObject
{
protected:
   ENUM_EVENT_TYPE m_type;    // Event type
   ulong           m_id;      // Event ID
   datetime        m_time;    // Event time
   
public:
   // Constructor
   CBaseEvent(ENUM_EVENT_TYPE type) : m_type(type), m_id(0), m_time(0) 
   {
      m_time = TimeCurrent();
   }
   
   // Getters
   ENUM_EVENT_TYPE Type() const { return m_type; }
   ulong Id() const { return m_id; }
   datetime Time() const { return m_time; }
   
   // Virtual methods
   virtual bool Process() = 0;
   virtual string ToString() const = 0;
};

//+------------------------------------------------------------------+
//| Tick event                                                       |
//+------------------------------------------------------------------+
class CTickEvent : public CBaseEvent
{
private:
   MqlTick m_tick;
   
public:
   CTickEvent() : CBaseEvent(EVENT_TICK) {}
   
   bool Process()
   {
      // Process tick event
      if (!SymbolInfoTick(Symbol(), m_tick))
         return false;
         
      return true;
   }
   
   string ToString() const { return StringFormat("Tick: %s %.5f", TimeToString(m_tick.time), m_tick.last); }
};

//+------------------------------------------------------------------+
//| Timer event                                                      |
//+------------------------------------------------------------------+
class CTimerEvent : public CBaseEvent
{
public:
   CTimerEvent() : CBaseEvent(EVENT_TIMER) {}
   
   bool Process()
   {
      // Process timer event
      return true;
   }
   
   string ToString() const { return "Timer: " + TimeToString(Time()); }
};

//+------------------------------------------------------------------+
//| Trade event                                                      |
//+------------------------------------------------------------------+
class CTradeEvent : public CBaseEvent
{
private:
   ENUM_TRADE_EVENT m_tradeEvent;
   
public:
   CTradeEvent(ENUM_TRADE_EVENT event) : CBaseEvent(EVENT_TRADE), m_tradeEvent(event) {}
   
   bool Process()
   {
      // Process trade event
      return true;
   }
   
   string ToString() const { return "Trade: " + EnumToString(m_tradeEvent); }
};

//+------------------------------------------------------------------+
//| Event queue                                                      |
//+------------------------------------------------------------------+
class CEventQueue
{
private:
   CArrayObj* m_events;     // Event queue
   int        m_maxSize;    // Maximum queue size
   
public:
   CEventQueue(int maxSize = 1000) : m_maxSize(maxSize)
   {
      m_events = new CArrayObj();
   }
   
   ~CEventQueue()
   {
      if (m_events != NULL)
      {
         m_events.Clear();
         delete m_events;
      }
   }
   
   bool Enqueue(CBaseEvent* event)
   {
      if (m_events.Total() >= m_maxSize)
         return false;
         
      return m_events.Add(event);
   }
   
   CBaseEvent* Dequeue()
   {
      if (m_events.Total() == 0)
         return NULL;
         
      CBaseEvent* event = m_events.At(0);
      m_events.Delete(0);
      return event;
   }
   
   int Size() const { return m_events.Total(); }
   bool IsEmpty() const { return m_events.Total() == 0; }
};

//+------------------------------------------------------------------+
//| Event manager                                                    |
//+------------------------------------------------------------------+
class CEAEvents
{
private:
   CEventQueue* m_eventQueue;    // Event queue
   CEALogger*   m_logger;        // Logger instance
   CEAState*    m_state;         // State manager
   
   // Event handlers
   bool ProcessTickEvent(CBaseEvent* event);
   bool ProcessTimerEvent(CBaseEvent* event);
   bool ProcessTradeEvent(CBaseEvent* event);
   
public:
   CEAEvents() : m_eventQueue(NULL), m_logger(NULL), m_state(NULL) {}
   ~CEAEvents() { Deinitialize(); }
   
   bool Initialize(CEALogger* logger, CEAState* state);
   void Deinitialize();
   
   // Event processing
   bool ProcessTick();
   bool ProcessTimer();
   bool ProcessTrade();
   
   // Event generation
   bool GenerateTickEvent();
   bool GenerateTimerEvent();
   bool GenerateTradeEvent(ENUM_TRADE_EVENT event);
};

//+------------------------------------------------------------------+
//| Initialize event system                                          |
//+------------------------------------------------------------------+
bool CEAEvents::Initialize(CEALogger* logger, CEAState* state)
{
   if (logger == NULL || state == NULL)
      return false;
      
   m_logger = logger;
   m_state = state;
   m_eventQueue = new CEventQueue();
   
   m_logger.LogInfo("Event system initialized");
   return true;
}

//+------------------------------------------------------------------+
//| Deinitialize event system                                        |
//+------------------------------------------------------------------+
void CEAEvents::Deinitialize()
{
   if (m_eventQueue != NULL)
   {
      delete m_eventQueue;
      m_eventQueue = NULL;
   }
   
   m_logger = NULL;
   m_state = NULL;
}

//+------------------------------------------------------------------+
//| Process tick event                                               |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTick()
{
   // Process all pending events
   while (!m_eventQueue.IsEmpty())
   {
      CBaseEvent* event = m_eventQueue.Dequeue();
      if (event == NULL)
         continue;
         
      bool result = false;
      
      switch (event.Type())
      {
         case EVENT_TICK:    result = ProcessTickEvent(event); break;
         case EVENT_TIMER:   result = ProcessTimerEvent(event); break;
         case EVENT_TRADE:   result = ProcessTradeEvent(event); break;
         default:            break;
      }
      
      delete event;
   }
   
   return true;
}

//+------------------------------------------------------------------+
//| Process timer event                                              |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTimer()
{
   // Process timer-based events
   return true;
}

//+------------------------------------------------------------------+
//| Process trade event                                              |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTrade()
{
   // Process trade-related events
   return true;
}

//+------------------------------------------------------------------+
//| Process tick event                                               |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTickEvent(CBaseEvent* event)
{
   if (event.Type() != EVENT_TICK)
      return false;
      
   CTickEvent* tick = (CTickEvent*)event;
   
   // Update state with new tick data
   if (m_state != NULL)
      m_state->UpdateLastTick(tick);
      
   return true;
}

//+------------------------------------------------------------------+
//| Process timer event                                              |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTimerEvent(CBaseEvent* event)
{
   if (event.Type() != EVENT_TIMER)
      return false;
      
   // Process timer-based tasks
   return true;
}

//+------------------------------------------------------------------+
//| Process trade event                                              |
//+------------------------------------------------------------------+
bool CEAEvents::ProcessTradeEvent(CBaseEvent* event)
{
   if (event.Type() != EVENT_TRADE)
      return false;
      
   // Process trade events
   return true;
}

//+------------------------------------------------------------------+
//| Generate tick event                                              |
//+------------------------------------------------------------------+
bool CEAEvents::GenerateTickEvent()
{
   if (m_eventQueue == NULL)
      return false;
      
   CTickEvent* event = new CTickEvent();
   return m_eventQueue.Enqueue(event);
}

//+------------------------------------------------------------------+
//| Generate timer event                                             |
//+------------------------------------------------------------------+
bool CEAEvents::GenerateTimerEvent()
{
   if (m_eventQueue == NULL)
      return false;
      
   CTimerEvent* event = new CTimerEvent();
   return m_eventQueue.Enqueue(event);
}

//+------------------------------------------------------------------+
//| Generate trade event                                             |
//+------------------------------------------------------------------+
bool CEAEvents::GenerateTradeEvent(ENUM_TRADE_EVENT event)
{
   if (m_eventQueue == NULL)
      return false;
      
   CTradeEvent* tradeEvent = new CTradeEvent(event);
   return m_eventQueue.Enqueue(tradeEvent);
}