//+------------------------------------------------------------------+
//|                                                     Positions.mqh|
//|                                       Copyright 2026, bandersoft |
//|                               https://www.mql5.com/en/users/fats |
//+------------------------------------------------------------------+
//|                                                                  |
//|  Read-only queries on open positions.                            |
//|                                                                  |
//+------------------------------------------------------------------+
#ifndef STOPFIRST_POSITIONS_MQH
#define STOPFIRST_POSITIONS_MQH

#include <Trade\PositionInfo.mqh>
#include "Defs.mqh"

//+------------------------------------------------------------------+
//| Commission and fees already charged on an open position           |
//|                                                                   |
//| MT5 charges commission on DEALS. POSITION_COMMISSION, which       |
//| CPositionInfo::Commission() reads, is deprecated and reports 0,   |
//| so "profit + swap + commission" silently leaves commission out.   |
//| This sums DEAL_COMMISSION and DEAL_FEE over the position's deals  |
//| instead.                                                          |
//|                                                                   |
//| Side effect: replaces the history selection, as any               |
//| HistorySelectByPosition call does.                                |
//|                                                                   |
//| Returns: the total, normally negative. 0 when the broker charges  |
//|          none or the history cannot be selected.                  |
//+------------------------------------------------------------------+
double PositionCommission(const ulong ticket)
{
   if(!HistorySelectByPosition(ticket)) return 0;

   double total = 0;
   for(int i = HistoryDealsTotal() - 1; i >= 0; i--)
   {
      ulong deal = HistoryDealGetTicket(i);
      if(deal == 0) continue;
      total += HistoryDealGetDouble(deal, DEAL_COMMISSION) + HistoryDealGetDouble(deal, DEAL_FEE);
   }

   return total;
}

//+------------------------------------------------------------------+
//| Get total profit/loss for symbol                                  |
//|                                                                   |
//| Returns: profit plus swap plus commission over matching           |
//|          positions, 2 decimals. 0 if nothing matches, which reads |
//|          the same as a flat P/L.                                  |
//+------------------------------------------------------------------+
double GetTotalProfit(string symbol = "", ulong magic = STOPFIRST_ANY_MAGIC)
{
   //--- "" here means EVERY symbol, not the chart symbol

   CPositionInfo positionInfo;
   double totalProfit = 0;

   for(int i = 0; i < PositionsTotal(); i++)
   {
      if(positionInfo.SelectByIndex(i))
      {
         if(symbol == "" || positionInfo.Symbol() == symbol)
         {
            if(magic == STOPFIRST_ANY_MAGIC || positionInfo.Magic() == magic)
            {
               totalProfit += positionInfo.Profit() + positionInfo.Swap() +
                              PositionCommission(positionInfo.Ticket());
            }
         }
      }
   }

   return NormalizeDouble(totalProfit, 2);
}

//+------------------------------------------------------------------+
//| Get position count for symbol                                     |
//|                                                                   |
//| Returns: how many open positions match the filter. 0 if none.     |
//+------------------------------------------------------------------+
int GetPositionCount(string symbol = "", ulong magic = STOPFIRST_ANY_MAGIC, int posType = -1)
{
   //--- "" here means EVERY symbol, not the chart symbol

   CPositionInfo positionInfo;
   int count = 0;

   for(int i = 0; i < PositionsTotal(); i++)
   {
      if(positionInfo.SelectByIndex(i))
      {
         if(symbol == "" || positionInfo.Symbol() == symbol)
         {
            if(magic == STOPFIRST_ANY_MAGIC || positionInfo.Magic() == magic)
            {
               if(posType == -1 || positionInfo.PositionType() == (ENUM_POSITION_TYPE)posType)
                  count++;
            }
         }
      }
   }

   return count;
}

//+------------------------------------------------------------------+
//| Get total volume for symbol                                       |
//|                                                                   |
//| Returns: summed volume of matching positions, unrounded. Long    |
//|          and short both count positive, so this is gross exposure,|
//|          not net. 0 if nothing matches.                           |
//+------------------------------------------------------------------+
double GetTotalVolume(string symbol = "", ulong magic = STOPFIRST_ANY_MAGIC)
{
   //--- "" here means EVERY symbol, not the chart symbol

   CPositionInfo positionInfo;
   double totalVolume = 0;

   for(int i = 0; i < PositionsTotal(); i++)
   {
      if(positionInfo.SelectByIndex(i))
      {
         if(symbol == "" || positionInfo.Symbol() == symbol)
         {
            if(magic == STOPFIRST_ANY_MAGIC || positionInfo.Magic() == magic)
            {
               totalVolume += positionInfo.Volume();
            }
         }
      }
   }

   //--- not rounded to 2 decimals: on a 0.001 step, 3 x 0.005 is 0.015
   //--- and rounding would give 0.02 or 0.01
   return NormalizeDouble(totalVolume, 8);
}

#endif // STOPFIRST_POSITIONS_MQH
//+------------------------------------------------------------------+