//+----------------------------------------------------------------------------+
//|                                           TradingDaysFilter.mq4           |
//|                                    Copyright © 2010, Robert Hill           |
//|                                                                            |
//+----------------------------------------------------------------------------+
#property copyright "Copyright © 2010, Robert Hill"
#property link      ""
#include <stdlib.mqh>
#include <stderror.mqh> 

extern int     MagicNumber =  54321;
extern string  sd0="--Trading Days Filter--";
extern string  sd2="UseTradingDays - Enter 0 for false, 1 for true";
extern int     UseTradingDays = 1;
extern int     TradeSun = 0;
extern int     TradeMon = 1;
extern int     TradeTues = 1;
extern int     TradeWeds = 1;
extern int     TradeThurs = 1;
extern int     TradeFri = 1;

int init()
{

   return(0);
}

int deinit()
{
   return(0);
}

int start()
{
   bool YesStop;
   int NumOrders;
   
   RefreshRates();
   NumOrders = CalculateCurrentOrders(Symbol(), MagicNumber);
   
   if (NumOrders == 0)
   {
      YesStop = CheckTradeFilters();
      if (YesStop == false)
      {
        OpenNewPositions();
      }
   }
   else
   {
      HandleOpenPositions();
   }

  return(0);
}



bool CheckTradeFilters()
{
   bool myStop;
   
   myStop = false;
   
   
   if (myStop == false)
   {
      myStop = CheckTradingDays();
   
   }
      
   
   return(myStop);
}

bool CheckTradingDays()
{
   if (UseTradingDays == 1)
   {
      switch(DayOfWeek())
      {
       case 0 :  if (TradeSun == 0) return(true);
                 break;
       case 1 :  if (TradeMon == 0) return(true);
                 break;
       case 2 :  if (TradeTues == 0) return(true);
                 break;
       case 3 :  if (TradeWeds == 0) return(true);
                 break;
       case 4 :  if (TradeThurs == 0) return(true);
                 break;
       case 5 :  if (TradeFri == 0) return(true);
      }
   }
   return(false);
}

int CalculateCurrentOrders(string mySymbol, int MagicNumber)
  {
   int buys = 0, sells = 0, num = 0;
   for(int i=0;i<OrdersTotal();i++)
     {
      OrderSelect(i,SELECT_BY_POS,MODE_TRADES);
      if(OrderSymbol()!= mySymbol) continue;
      if (OrderMagicNumber()!= MagicNumber) continue;
      if(OrderType() == OP_BUY)  buys++;
      if(OrderType() == OP_SELL) sells++;
     }
     
   num = buys + sells;
   return(num);
  }

void HandleOpenPositions()
{
}

void OpenNewPositions()
{
}