//+------------------------------------------------------------------+
//| EquityDrawdown.mqh – max drawdown z equity, uzavření při překročení|
//+------------------------------------------------------------------+
#property copyright "TestRefactor"
#property strict

#ifndef __EQUITY_DRAWDOWN_MQH__
#define __EQUITY_DRAWDOWN_MQH__

#include "Context.mqh"
#include "Positions.mqh"
#include "Logger.mqh"
#include <Trade/Trade.mqh>

//+------------------------------------------------------------------+
//| CEquityDrawdown – sleduje vrchol equity, uzavře vše při X % DD    |
//+------------------------------------------------------------------+
class CEquityDrawdown {
private:
   SContext  m_ctx;
   CPositions *m_positions;
   CLogger   *m_log;
   CTrade    *m_trade;
   double    m_peakEquity;
   string    m_symbol;

public:
   CEquityDrawdown() : m_positions(NULL), m_log(NULL), m_trade(NULL), m_peakEquity(0), m_symbol("") {}

   void SetContext(const SContext &ctx) { m_ctx = ctx; }
   void SetPositions(CPositions *pos) { m_positions = pos; }
   void SetLogger(CLogger *log) { m_log = log; }
   void SetTrade(CTrade *trade) { m_trade = trade; }
   void SetSymbol(string symbol) { m_symbol = symbol; }

   void CheckAndClose() {
      if(m_ctx.tradeMode == TRADE_GRID) return;  // Grid má vlastní logiku (profit target), DD by ničil akumulaci
      if(m_ctx.maxEquityDrawdownPct <= 0 || !m_trade || !m_positions) return;
      double equity = AccountInfoDouble(ACCOUNT_EQUITY);
      if(equity > m_peakEquity) m_peakEquity = equity;
      if(m_peakEquity <= 0) return;
      double drawdownPct = (m_peakEquity - equity) / m_peakEquity * 100.0;
      if(drawdownPct < m_ctx.maxEquityDrawdownPct) return;

      m_positions.Refresh();
      ulong tickets[];
      m_positions.GetTickets(tickets);
      int n = ArraySize(tickets);
      if(n == 0) return;

      for(int j = 0; j < n; j++)
         m_trade.PositionClose(tickets[j]);
      m_peakEquity = AccountInfoDouble(ACCOUNT_EQUITY);
      if(m_log) m_log.Info("Max drawdown " + DoubleToString(m_ctx.maxEquityDrawdownPct, 1) + "% – uzavřeny všechny pozice. Equity drawdown byl " + DoubleToString(drawdownPct, 2) + "%.");
   }
};

#endif