//+------------------------------------------------------------------+
#define SIGNAL_NONE 0
#define SIGNAL_BUY   1
#define SIGNAL_SELL  2
#define SIGNAL_CLOSEBUY 3
#define SIGNAL_CLOSESELL 4

#property copyright "Ronald Raygun"

extern string Remark1 = "== Main Settings ==";
extern int MagicNumber = 0;
extern bool SignalsOnly = False;
extern bool Alerts = False;
extern bool SignalMail = False;
extern bool PlaySounds = False;
extern bool EachTickMode = True;
extern bool UseTradingTimes = True;
extern int HourStart = 7;
extern int MinuteStart = 0;
extern int HourEnd = 20;
extern int MinuteEnd = 0;
extern double Lots = 0;
extern bool MoneyManagement = False;
extern int Risk = 0;
extern int Slippage = 5;
extern  bool UseStopLoss = True;
extern bool OverRideStopLoss = False;
extern int StopLoss = 100;
extern bool UseTakeProfit = False;
extern bool OverRideTakeProfit = False;
extern int TakeProfit = 60;
extern bool UseTrailingStop = False;
extern int TrailingStop = 30;
extern bool MoveStopOnce = False;
extern int MoveStopWhenPrice = 50;
extern int MoveStopTo = 1;
extern string Remark2 = "";
extern string Remark3 = "== SlingShot Settings ==";
extern int MinRange = 150;
extern int PipBuffer = 10;
extern int MaxTradesPerBar = 1;


double LongEntry;
double ShortEntry;

int EntryBar;
int SignalBar;
int BarsCount;
int RemainingTrades;
//Version 2.01

int OpenBarCount;
int CloseBarCount;

int Current;
bool TickCheck = False;
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init() {
   OpenBarCount = Bars;
   CloseBarCount = Bars;

   if (EachTickMode) Current = 0; else Current = 1;

   return(0);
}
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit() {
   return(0);
}
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start() 


{
   int Order = SIGNAL_NONE;
   int Total, Ticket;
   double StopLossLevel, TakeProfitLevel;



   if (EachTickMode && Bars != CloseBarCount) TickCheck = False;
   Total = OrdersTotal();
   Order = SIGNAL_NONE;

//Money Management sequence
 if (MoneyManagement)
   {
      if (Risk<1 || Risk>100)
      {
         Comment("Invalid Risk Value.");
         return(0);
      }
      else
      {
         Lots=MathFloor((AccountFreeMargin()*AccountLeverage()*Risk*Point*100)/(Ask*MarketInfo(Symbol(),MODE_LOTSIZE)*MarketInfo(Symbol(),MODE_MINLOT)))*MarketInfo(Symbol(),MODE_MINLOT);
      }
   }

   //+------------------------------------------------------------------+
   //| Variable Begin                                                   |
   //+------------------------------------------------------------------+

int Spread = MathAbs( (Bid - Ask) / Point);

double PreviousClose = iClose(NULL, 0, Current + 1);
double PreviousHigh = iHigh(NULL, 0, Current + 1);
double PreviousLow = iLow(NULL, 0, Current + 1);

double CurrentClose = iClose(NULL, 0, Current + 0);
double CurrentHigh = iHigh(NULL, 0, Current + 0);
double CurrentLow = iLow(NULL, 0, Current + 0);

if(BarsCount != Bars) {
   RemainingTrades = MaxTradesPerBar;
   BarsCount = Bars;
   }
   
if( CurrentClose > PreviousHigh && RemainingTrades > 0) {
   ShortEntry = PreviousClose - (PipBuffer * Point);
   LongEntry = 0;
   }
   
if( CurrentClose < PreviousLow && RemainingTrades > 0) {
   LongEntry = PreviousClose + (PipBuffer * Point);
   ShortEntry = 0;
   }   

string TradingTimes = "Outside Trading Times";
if(UseTradingTimes && TimeHour(TimeCurrent()) >= HourStart && TimeMinute(TimeCurrent()) >= MinuteStart && TimeHour(TimeCurrent()) <= HourEnd && TimeMinute(TimeCurrent()) < MinuteEnd) TradingTimes = "Inside Trading Times";
if(!UseTradingTimes) TradingTimes = "Not Used";      
   
string TradeTrigger = "None";
if(CurrentClose >= LongEntry && RemainingTrades > 0 && (TradingTimes == "Inside Trading Times" || TradingTimes == "Not Used") ) {
   TradeTrigger = "Open Long";
   EntryBar = Bars;
   }
   
if(CurrentClose <= LongEntry && RemainingTrades < 0 && (TradingTimes == "Inside Trading Times" || TradingTimes == "Not Used") ) {
   TradeTrigger = "Open Short";   
   EntryBar = Bars;
   }

string CloseTrigger = "None";
if(EntryBar != Bars) CloseTrigger = "Close All";


Comment("Long Entry Price: ", LongEntry, "\n",
        "Short Entry Price: ", ShortEntry, "\n",
        "Trading Times: ", TradingTimes, "\n",
        "Remaining Trades: ", RemainingTrades, "\n",
        "Trade Trigger: ", TradeTrigger, "\n",
        "Close Trigger: ", CloseTrigger);
        
        
   //+------------------------------------------------------------------+
   //| Variable End                                                     |
   //+------------------------------------------------------------------+

   //Check position
   bool IsTrade = False;

   for (int i = 0; i < Total; i ++) {
      OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
      if(OrderType() <= OP_SELL &&  OrderSymbol() == Symbol() && OrderMagicNumber() == MagicNumber) {
         IsTrade = True;
         if(OrderType() == OP_BUY) {
         
            
            //Close

            //+------------------------------------------------------------------+
            //| Signal Begin(Exit Buy)                                           |
            //+------------------------------------------------------------------+

  if(CloseTrigger == "Close All") Order = SIGNAL_CLOSEBUY;

            //+------------------------------------------------------------------+
            //| Signal End(Exit Buy)                                             |
            //+------------------------------------------------------------------+

            if (Order == SIGNAL_CLOSEBUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != CloseBarCount)))) {
               OrderClose(OrderTicket(), OrderLots(), Bid, Slippage, MediumSeaGreen);
               if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + " Close Buy");
               if (!EachTickMode) CloseBarCount = Bars;
               IsTrade = False;
               continue;
            }
            //MoveOnce
            if(MoveStopOnce && MoveStopWhenPrice > 0) {
               if(Bid - OrderOpenPrice() >= Point * MoveStopWhenPrice) {
                  if(OrderStopLoss() < OrderOpenPrice() + Point * MoveStopTo) {
                  OrderModify(OrderTicket(),OrderOpenPrice(), OrderOpenPrice() + Point * MoveStopTo, OrderTakeProfit(), 0, Red);
                     if (!EachTickMode) CloseBarCount = Bars;
                     continue;
                  }
               }
            }
            //Trailing stop
            if(UseTrailingStop && TrailingStop > 0) {                 
               if(Bid - OrderOpenPrice() > Point * TrailingStop) {
                  if(OrderStopLoss() < Bid - Point * TrailingStop) {
                     OrderModify(OrderTicket(), OrderOpenPrice(), Bid - Point * TrailingStop, OrderTakeProfit(), 0, MediumSeaGreen);
                     if (!EachTickMode) CloseBarCount = Bars;
                     continue;
                  }
               }
            }
         } else {
        
            //Close

            //+------------------------------------------------------------------+
            //| Signal Begin(Exit Sell)                                          |
            //+------------------------------------------------------------------+

if(CloseTrigger == "Close All") Order = SIGNAL_CLOSESELL;

            //+------------------------------------------------------------------+
            //| Signal End(Exit Sell)                                            |
            //+------------------------------------------------------------------+

            if (Order == SIGNAL_CLOSESELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != CloseBarCount)))) {
               OrderClose(OrderTicket(), OrderLots(), Ask, Slippage, DarkOrange);
               if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + " Close Sell");
               if (!EachTickMode) CloseBarCount = Bars;
               IsTrade = False;
               continue;
            }
            //MoveOnce
            if(MoveStopOnce && MoveStopWhenPrice > 0) {
               if(OrderOpenPrice() - Ask >= Point * MoveStopWhenPrice) {
                  if(OrderStopLoss() > OrderOpenPrice() - Point * MoveStopTo) {
                  OrderModify(OrderTicket(),OrderOpenPrice(), OrderOpenPrice() - Point * MoveStopTo, OrderTakeProfit(), 0, Red);
                     if (!EachTickMode) CloseBarCount = Bars;
                     continue;
                  }
               }
            }
            //Trailing stop
            if(UseTrailingStop && TrailingStop > 0) {                 
               if((OrderOpenPrice() - Ask) > (Point * TrailingStop)) {
                  if((OrderStopLoss() > (Ask + Point * TrailingStop)) || (OrderStopLoss() == 0)) {
                     OrderModify(OrderTicket(), OrderOpenPrice(), Ask + Point * TrailingStop, OrderTakeProfit(), 0, DarkOrange);
                     if (!EachTickMode) CloseBarCount = Bars;
                     continue;
                  }
               }
            }
         }
      }
   }

   //+------------------------------------------------------------------+
   //| Signal Begin(Entry)                                              |
   //+------------------------------------------------------------------+

if(TradeTrigger == "Open Long") Order = SIGNAL_BUY;
if(TradeTrigger == "Open Short") Order = SIGNAL_SELL;

   //+------------------------------------------------------------------+
   //| Signal End                                                       |
   //+------------------------------------------------------------------+

   //Buy
   if (Order == SIGNAL_BUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != OpenBarCount)))) {
      if(SignalsOnly) {
         if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + "Buy Signal");
         if (Alerts) Alert("[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + "Buy Signal");
         if (PlaySounds) PlaySound("alert.wav");
     
      }
      
      if(!IsTrade && !SignalsOnly) {
         //Check free margin
         if (AccountFreeMargin() < (1000 * Lots)) {
            Print("We have no money. Free Margin = ", AccountFreeMargin());
            return(0);
         }

         if (UseStopLoss && OverRideStopLoss) StopLossLevel = Ask - StopLoss * Point;
         if (UseStopLoss && !OverRideStopLoss) StopLossLevel = CurrentLow - ( (PipBuffer + Spread) * Point);
         if (!UseStopLoss && !OverRideStopLoss) StopLossLevel = 0;
         
         
         if (UseTakeProfit) TakeProfitLevel = Ask + TakeProfit * Point; else TakeProfitLevel = 0.0;

         Ticket = OrderSend(Symbol(), OP_BUY, Lots, Ask, Slippage, StopLossLevel, TakeProfitLevel, "Buy(#" + MagicNumber + ")", MagicNumber, 0, DodgerBlue);
         if(Ticket > 0) {
            if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
				Print("BUY order opened : ", OrderOpenPrice());
                if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + "Buy Signal");
			       if (Alerts) Alert("[" + Symbol() + "] " + DoubleToStr(Ask, Digits) + "Buy Signal");
                if (PlaySounds) PlaySound("alert.wav");
                RemainingTrades--;
			} else {
				Print("Error opening BUY order : ", GetLastError());
			}
         }
         if (EachTickMode) TickCheck = True;
         if (!EachTickMode) OpenBarCount = Bars;
         return(0);
      }
   }

   //Sell
   if (Order == SIGNAL_SELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != OpenBarCount)))) {
      if(SignalsOnly) {
          if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + "Sell Signal");
          if (Alerts) Alert("[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + "Sell Signal");
          if (PlaySounds) PlaySound("alert.wav");
          RemainingTrades--;
         }
      if(!IsTrade && !SignalsOnly) {
         //Check free margin
         if (AccountFreeMargin() < (1000 * Lots)) {
            Print("We have no money. Free Margin = ", AccountFreeMargin());
            return(0);
         }

         if (UseStopLoss && OverRideStopLoss) StopLossLevel = Bid + StopLoss * Point;
         if (UseStopLoss && !OverRideStopLoss) StopLossLevel = CurrentHigh + ((PipBuffer + Spread) * Point );
         if (!UseStopLoss && !OverRideStopLoss) StopLossLevel = 0;
         
         if (UseTakeProfit) TakeProfitLevel = Bid - TakeProfit * Point; else TakeProfitLevel = 0.0;

         Ticket = OrderSend(Symbol(), OP_SELL, Lots, Bid, Slippage, StopLossLevel, TakeProfitLevel, "Sell(#" + MagicNumber + ")", MagicNumber, 0, DeepPink);
         if(Ticket > 0) {
            if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
				Print("SELL order opened : ", OrderOpenPrice());
                if (SignalMail) SendMail("[Signal Alert]", "[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + "Sell Signal");
			       if (Alerts) Alert("[" + Symbol() + "] " + DoubleToStr(Bid, Digits) + "Sell Signal");
                if (PlaySounds) PlaySound("alert.wav");
			} else {
				Print("Error opening SELL order : ", GetLastError());
			}
         }
         if (EachTickMode) TickCheck = True;
         if (!EachTickMode) OpenBarCount = Bars;
         return(0);
      }
   }

   if (!EachTickMode) CloseBarCount = Bars;

   return(0);
}