//+------------------------------------------------------------------+
//|                                                  TradeHelper.mqh |
//+------------------------------------------------------------------+
#ifndef _TRADEHELPER_MQH_
#define _TRADEHELPER_MQH_

//+------------------------------------------------------------------+
//| インクルード                                                     |
//+------------------------------------------------------------------+
#ifdef _MQL4
#include <Object.mqh>

#else  // _MQL4
#include <Trade\Trade.mqh>

#endif // _MQL4

//+------------------------------------------------------------------+
//| マクロ                                                           |
//+------------------------------------------------------------------+
#define LOG_ERROR(msg)  PrintFormat("[ERROR] (@%s %s() line:%d): %s", __FILE__, __FUNCTION__, __LINE__, msg)

//+------------------------------------------------------------------+
//| ClTradeHelperクラス                                              |
//+------------------------------------------------------------------+
class ClTradeHelper : public CObject
{
public:
                     ClTradeHelper(void);
    virtual         ~ClTradeHelper(void);

    void             SetExpertMagicNumber(const ulong magic);
    void             SetDeviationInPoints(const ulong deviation);
    void             SetMarginMode(void);
    bool             PositionOpen(const string symbol, const ENUM_ORDER_TYPE order_type, const double volume,
                                 const double price, const double sl, const double tp, const string comment = "");
    bool             PositionClose(const ulong ticket, const ulong deviation = ULONG_MAX);

protected:
#ifdef _MQL4
    ulong            l_magic;                                        // マジックナンバー
    ulong            l_deviation;                                    // 許容スリッページ

#else  // _MQL4
    CTrade           l_Trade;                                        // シンボル情報

#endif // _MQL4
};
//+------------------------------------------------------------------+
//| コンストラクター                                                 |
//+------------------------------------------------------------------+
ClTradeHelper::ClTradeHelper(void)
{
#ifdef _MQL4
    l_magic = 0;
    l_deviation = 10;

#else

#endif
}
//+------------------------------------------------------------------+
//| デストラクター                                                   |
//+------------------------------------------------------------------+
ClTradeHelper::~ClTradeHelper(void)
{
}
//+------------------------------------------------------------------+
//| マジックナンバーの設定                                           |
//+------------------------------------------------------------------+
void ClTradeHelper::SetExpertMagicNumber(const ulong magic)
{
#ifdef _MQL4
    l_magic = magic;

#else
    l_Trade.SetExpertMagicNumber(magic);

#endif
}
//+------------------------------------------------------------------+
//| 許容スリッページの設定                                           |
//+------------------------------------------------------------------+
void ClTradeHelper::SetDeviationInPoints(const ulong deviation)
{
#ifdef _MQL4
    l_deviation = deviation;

#else
    l_Trade.SetDeviationInPoints(deviation);

#endif
}
//+------------------------------------------------------------------+
//| マージンモードの設定                                             |
//+------------------------------------------------------------------+
void ClTradeHelper::SetMarginMode(void)
{
#ifdef _MQL4
// no op

#else
    l_Trade.SetMarginMode();

#endif
}
//+------------------------------------------------------------------+
//| 成り行き注文(新規)                                               |
//+------------------------------------------------------------------+
bool ClTradeHelper::PositionOpen(const string symbol, const ENUM_ORDER_TYPE order_type, const double volume,
                                 const double price, const double sl, const double tp, const string comment/*=""*/)
{
#ifdef _MQL4
    int ticket = -1;
    int error = 0;
    if(order_type == ORDER_TYPE_BUY || order_type == ORDER_TYPE_BUY_LIMIT || order_type == ORDER_TYPE_BUY_STOP)
    {
        ResetLastError();
        ticket = OrderSend(symbol, order_type, volume, price, (int)l_deviation, sl, tp, comment, (int)l_magic, 0, Red);
        if(ticket == -1)
        {
            error = GetLastError();
            LOG_ERROR(StringFormat("Error OrderSend(); ErrorCode=%d;", error));
            return(false);
        }
        return(true);
    }
    else if(order_type == ORDER_TYPE_SELL || order_type == ORDER_TYPE_SELL_LIMIT || order_type == ORDER_TYPE_SELL_STOP)
    {
        ResetLastError();
        ticket = OrderSend(symbol, order_type, volume, price, (int)l_deviation, sl, tp, comment, (int)l_magic, 0, Blue);
        if(ticket == -1)
        {
            error = GetLastError();
            LOG_ERROR(StringFormat("Error OrderSend(); ErrorCode=%d;", error));
            return(false);
        }
        return(true);
    }
    else
    {
        LOG_ERROR("Error unknown trade operation.");
        return(false);
    }

#else
    return(l_Trade.PositionOpen(symbol, order_type, volume, price, sl, tp, comment));

#endif
}
//+------------------------------------------------------------------+
//| 成り行き注文(決済)                                               |
//+------------------------------------------------------------------+
bool ClTradeHelper::PositionClose(const ulong ticket, const ulong deviation/*=ULONG_MAX*/)
{
#ifdef _MQL4
    int slippage = deviation == ULONG_MAX ? (int)l_deviation : (int)deviation;
    int error = 0;

    ResetLastError();
    if(!OrderSelect((int)ticket, SELECT_BY_TICKET))
    {
        error = GetLastError();
        LOG_ERROR(StringFormat("Error OrderSelect(); ErrorCode=%d;", error));
        return(false);
    }

    ResetLastError();
    bool result = OrderClose((int)ticket, OrderLots(), OrderClosePrice(), slippage, Yellow);
    if(result)
    {
        return(true);
    }
    else
    {
        error = GetLastError();
        LOG_ERROR(StringFormat("Error OrderClose(); ErrorCode=%d;", error));
        return(false);
    }

#else
    return(l_Trade.PositionClose(ticket, deviation));

#endif
}
#endif // _TRADEHELPER_MQH_
//+------------------------------------------------------------------+