Open Close

ÿþ//+------------------------------------------------------------------+

//|                                                   Open Close.mq5 |

//|                              Copyright © 2018, Vladimir Karputov |

//|                                           http://wmua.ru/slesar/ |

//+------------------------------------------------------------------+

#property copyright "Copyright © 2018, Vladimir Karputov"

#property link      "http://wmua.ru/slesar/"

#property version   "1.000"

//---

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>  

#include <Trade\AccountInfo.mqh>

CPositionInfo  m_position;                   // trade position object

CTrade         m_trade;                      // trading object

CSymbolInfo    m_symbol;                     // symbol info object

CAccountInfo   m_account;                    // account info wrapper

//--- input parameters

input double   InpMaximumRisk    = 0.02;     // Maximum Risk in percentage

input double   InpDecreaseFactor = 3;        // Descrease factor

input ushort   InpHistoryDays    = 60;       // History days

input ulong    m_magic           = 167747200;// magic number

//---

ulong  m_slippage=10;                        // slippage

//--- CopyRates:

int      start_pos;     // start position 

int      count;         // data count to copy 

MqlRates rates[];       // target array to copy 

//+------------------------------------------------------------------+

//| Expert initialization function                                   |

//+------------------------------------------------------------------+

int OnInit()

  {

   start_pos=0;

   count=3;

   ArraySetAsSeries(rates,true);

//---

   if(!m_symbol.Name(Symbol())) // sets symbol name

      return(INIT_FAILED);

   RefreshRates();

//---

   m_trade.SetExpertMagicNumber(m_magic);

   m_trade.SetMarginMode();

   m_trade.SetTypeFillingBySymbol(m_symbol.Name());

   m_trade.SetDeviationInPoints(m_slippage);

//---

   return(INIT_SUCCEEDED);

  }

//+------------------------------------------------------------------+

//| Expert deinitialization function                                 |

//+------------------------------------------------------------------+

void OnDeinit(const int reason)

  {

//---



  }

//+------------------------------------------------------------------+

//| Expert tick function                                             |

//+------------------------------------------------------------------+

void OnTick()

  {

   static datetime PrevBars=0;

//--- we work only at the time of the birth of new bar

   datetime time_0=iTime(m_symbol.Name(),Period(),0);

   if(time_0==PrevBars)

      return;

   PrevBars=time_0;



   if(!RefreshRates())

     {

      PrevBars=0; return;

     }

//---

   if(CopyRates(m_symbol.Name(),Period(),start_pos,count,rates)!=count)

     {

      PrevBars=0; return;

     }

   if(!IsPositionExists())

     {

      //--- ?>:C?05<

      if((rates[1].open>rates[2].open) && (rates[1].close<rates[2].close))

        {

         double lot=TradeSizeOptimized();

         OpenBuy(lot,0.0,0.0);

         return;

        }

      //--- ?@>405<

      if((rates[1].open<rates[2].open) && (rates[1].close>rates[2].close))

        {

         double lot=TradeSizeOptimized();

         OpenSell(lot,0.0,0.0);

         return;

        }

     }

   else

     {

      if(rates[1].open<rates[2].open && (rates[1].close<rates[2].close))

        {

         ClosePositions(POSITION_TYPE_BUY);

         return;

        }

      if(rates[1].open>rates[2].open && (rates[1].close>rates[2].close))

        {

         ClosePositions(POSITION_TYPE_SELL);

         return;

        }

     }

  }

//+------------------------------------------------------------------+

//| TradeTransaction function                                        |

//+------------------------------------------------------------------+

void OnTradeTransaction(const MqlTradeTransaction &trans,

                        const MqlTradeRequest &request,

                        const MqlTradeResult &result)

  {

//---



  }

//+------------------------------------------------------------------+

//| Refreshes the symbol quotes data                                 |

//+------------------------------------------------------------------+

bool RefreshRates(void)

  {

//--- refresh rates

   if(!m_symbol.RefreshRates())

     {

      Print("RefreshRates error");

      return(false);

     }

//--- protection against the return value of "zero"

   if(m_symbol.Ask()==0 || m_symbol.Bid()==0)

      return(false);

//---

   return(true);

  }

//+------------------------------------------------------------------+

//| Is position exists                                               |

//+------------------------------------------------------------------+

bool IsPositionExists(void)

  {

   for(int i=PositionsTotal()-1;i>=0;i--)

      if(m_position.SelectByIndex(i)) // selects the position by index for further access to its properties

         if(m_position.Symbol()==m_symbol.Name() && m_position.Magic()==m_magic)

            return(true);

//---

   return(false);

  }

//+------------------------------------------------------------------+

//| Calculate optimal lot size                                       |

//+------------------------------------------------------------------+

double TradeSizeOptimized(void)

  {

   double price=m_symbol.Ask();

   double margin=0.0;

//--- select lot size

   margin=m_account.MarginCheck(m_symbol.Name(),ORDER_TYPE_BUY,1.0,price);

   if(margin<=0.0 || margin==EMPTY_VALUE)

      return(0.0);

   double lot=NormalizeDouble(m_account.FreeMargin()*InpMaximumRisk/margin,2);

//--- calculate number of losses orders without a break

   if(InpDecreaseFactor>0)

     {

      //--- select history for access

      datetime time=TimeTradeServer();

      HistorySelect(time-InpHistoryDays*60*60*24,time+60*60*24);

      //---

      int    orders=HistoryDealsTotal();  // total history deals

      int    losses=0;                    // number of losses orders without a break



      for(int i=orders-1;i>=0;i--)

        {

         ulong ticket=HistoryDealGetTicket(i);

         if(ticket==0)

           {

            Print("HistoryDealGetTicket failed, no trade history");

            break;

           }

         //--- check symbol

         if(HistoryDealGetString(ticket,DEAL_SYMBOL)!=m_symbol.Name())

            continue;

         //--- check Expert Magic number

         if(HistoryDealGetInteger(ticket,DEAL_MAGIC)!=m_magic)

            continue;

         //--- check profit

         double profit=HistoryDealGetDouble(ticket,DEAL_PROFIT);

         if(profit>0.0)

            break;

         if(profit<0.0)

            losses++;

        }

      //---

      if(losses>1)

         lot=NormalizeDouble(lot-lot*losses/InpDecreaseFactor,1);

     }

//--- normalize and check limits

   double stepvol=m_symbol.LotsStep();

   lot=stepvol*NormalizeDouble(lot/stepvol,0);



   double minvol=m_symbol.LotsMin();

   if(lot<minvol)

      lot=minvol;



   double maxvol=m_symbol.LotsMax();

   if(lot>maxvol)

      lot=maxvol;

//--- return trading volume

   return(lot);

  }

//+------------------------------------------------------------------+

//| Open Buy position                                                |

//+------------------------------------------------------------------+

void OpenBuy(double lot,double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double long_lot=lot;

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double free_margin_check= m_account.FreeMarginCheck(m_symbol.Name(),ORDER_TYPE_BUY,long_lot,m_symbol.Ask());

   double margin_check     = m_account.MarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,long_lot,m_symbol.Bid());

   if(free_margin_check>margin_check)

     {

      if(m_trade.Buy(long_lot,m_symbol.Name(),m_symbol.Ask(),sl,tp))

        {

         if(m_trade.ResultDeal()==0)

           {

            Print("#1 Buy -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

           }

         else

           {

            Print("#2 Buy -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

           }

        }

      else

        {

         Print("#3 Buy -> false. Result Retcode: ",m_trade.ResultRetcode(),

               ", description of result: ",m_trade.ResultRetcodeDescription());

         PrintResultTrade(m_trade,m_symbol);

        }

     }

   else

     {

      Print(__FUNCTION__,", ERROR: method CAccountInfo::FreeMarginCheck returned the value ",DoubleToString(free_margin_check,2));

      return;

     }

//---

  }

//+------------------------------------------------------------------+

//| Open Sell position                                               |

//+------------------------------------------------------------------+

void OpenSell(double lot,double sl,double tp)

  {

   sl=m_symbol.NormalizePrice(sl);

   tp=m_symbol.NormalizePrice(tp);



   double short_lot=lot;

//--- check volume before OrderSend to avoid "not enough money" error (CTrade)

   double free_margin_check= m_account.FreeMarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,short_lot,m_symbol.Bid());

   double margin_check     = m_account.MarginCheck(m_symbol.Name(),ORDER_TYPE_SELL,short_lot,m_symbol.Bid());

   if(free_margin_check>margin_check)

     {

      if(m_trade.Sell(short_lot,m_symbol.Name(),m_symbol.Bid(),sl,tp))

        {

         if(m_trade.ResultDeal()==0)

           {

            Print("#1 Sell -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

           }

         else

           {

            Print("#2 Sell -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription());

            PrintResultTrade(m_trade,m_symbol);

           }

        }

      else

        {

         Print("#3 Sell -> false. Result Retcode: ",m_trade.ResultRetcode(),

               ", description of result: ",m_trade.ResultRetcodeDescription());

         PrintResultTrade(m_trade,m_symbol);

        }

     }

   else

     {

      Print(__FUNCTION__,", ERROR: method CAccountInfo::FreeMarginCheck returned the value ",DoubleToString(free_margin_check,2));

      return;

     }

//---

  }

//+------------------------------------------------------------------+

//| Print CTrade result                                              |

//+------------------------------------------------------------------+

void PrintResultTrade(CTrade &trade,CSymbolInfo &symbol)

  {

   Print("File: ",__FILE__,", symbol: ",m_symbol.Name());

   Print("Code of request result: "+IntegerToString(trade.ResultRetcode()));

   Print("code of request result as a string: "+trade.ResultRetcodeDescription());

   Print("Deal ticket: "+IntegerToString(trade.ResultDeal()));

   Print("Order ticket: "+IntegerToString(trade.ResultOrder()));

   Print("Volume of deal or order: "+DoubleToString(trade.ResultVolume(),2));

   Print("Price, confirmed by broker: "+DoubleToString(trade.ResultPrice(),symbol.Digits()));

   Print("Current bid price: "+DoubleToString(symbol.Bid(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultBid(),symbol.Digits()));

   Print("Current ask price: "+DoubleToString(symbol.Ask(),symbol.Digits())+" (the requote): "+DoubleToString(trade.ResultAsk(),symbol.Digits()));

   Print("Broker comment: "+trade.ResultComment());

   Print("Freeze Level: "+m_symbol.FreezeLevel());

   Print("Stops Level: "+m_symbol.StopsLevel());

   int d=0;

  }

//+------------------------------------------------------------------+

//| Close positions                                                  |

//+------------------------------------------------------------------+

void ClosePositions(const ENUM_POSITION_TYPE pos_type)

  {

   for(int i=PositionsTotal()-1;i>=0;i--) // returns the number of current positions

      if(m_position.SelectByIndex(i))     // selects the position by index for further access to its properties

         if(m_position.Symbol()==m_symbol.Name() && m_position.Magic()==m_magic)

            if(m_position.PositionType()==pos_type) // gets the position type

               m_trade.PositionClose(m_position.Ticket()); // close a position by the specified symbol

  }

//+------------------------------------------------------------------+