-- Id: 1960
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=31&t=2403


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function Init() --The strategy profile initialization
    strategy:name("Simple Moving Average Price Cross Strategy");
    strategy:description("");
	
	
	strategy:setTag("NonOptimizableParameters", "Email,SendEmail,SoundFile,RecurrentSound,PlaySound, ShowAlert");
 
    

    strategy.parameters:addGroup("Strategy Parametars");
	strategy.parameters:addString("Type", "Type of Signal", "", "CROSS");
    strategy.parameters:addStringAlternative("Type", "Cross", "", "CROSS");
    strategy.parameters:addStringAlternative("Type", "Touch and Reverse", "", "TOUCH");
	strategy.parameters:addBoolean("Confirmation", "Use Confirmation", "", true);
	
	strategy.parameters:addGroup("ADX Filter");
	
	
	strategy.parameters:addString("adxType", "Price type", "", "Bid");
    strategy.parameters:addStringAlternative("adxType", "Bid", "", "Bid");
    strategy.parameters:addStringAlternative("adxType", "Ask", "", "Ask");
    strategy.parameters:addString("adxTF", "Timeframe", "", "D1");
    strategy.parameters:setFlag("adxTF", core.FLAG_PERIODS);
	
	
	strategy.parameters:addBoolean("ADX_Filter", "Use ADX Filter", "", false);
	strategy.parameters:addInteger("ADX_Period", "ADX Period", "", 14);
	strategy.parameters:addDouble("ADX_Level", "ADX Level", "", 35);
	
	
	
	
	strategy.parameters:addGroup("Price Parameters");
    strategy.parameters:addString("PriceType", "Price type", "", "Bid");
    strategy.parameters:addStringAlternative("PriceType", "Bid", "", "Bid");
    strategy.parameters:addStringAlternative("PriceType", "Ask", "", "Ask");
    strategy.parameters:addString("PriceTF", "Timeframe", "", "m5");
    strategy.parameters:setFlag("PriceTF", core.FLAG_PERIODS);

    strategy.parameters:addGroup("MVA Parameters for trading signal");
    
	
	strategy.parameters:addString("MvaMET", "First MA Method", "Method" , "MVA");
    strategy.parameters:addStringAlternative("MvaMET", "MVA", "MVA" , "MVA");
    strategy.parameters:addStringAlternative("MvaMET", "EMA", "EMA" , "EMA");
    strategy.parameters:addStringAlternative("MvaMET", "LWMA", "LWMA" , "LWMA");
    strategy.parameters:addStringAlternative("MvaMET", "TMA", "TMA" , "TMA");
    strategy.parameters:addStringAlternative("MvaMET", "SMMA", "SMMA" , "SMMA");
    strategy.parameters:addStringAlternative("MvaMET", "KAMA", "KAMA" , "KAMA");
    strategy.parameters:addStringAlternative("MvaMET", "VIDYA", "VIDYA" , "VIDYA");
    strategy.parameters:addStringAlternative("MvaMET", "WMA", "WMA" , "WMA");
	strategy.parameters:addStringAlternative("MvaMET", "PPMA", "PPMA" , "PPMA");
	
	
    strategy.parameters:addInteger("MvaN", "MA Periods", "", 15, 1, 2000);
	
    strategy.parameters:addString("MvaType", "Price type", "", "Bid");
    strategy.parameters:addStringAlternative("MvaType", "Bid", "", "Bid");
    strategy.parameters:addStringAlternative("MvaType", "Ask", "", "Ask");
	
    strategy.parameters:addString("MvaTF", "Timeframe", "", "D1");
    strategy.parameters:setFlag("MvaTF", core.FLAG_PERIODS);
    strategy.parameters:addString("MvaPrice", "Price to apply MA", "", "close");
    strategy.parameters:addStringAlternative("MvaPrice", "Open", "", "open");
    strategy.parameters:addStringAlternative("MvaPrice", "High", "", "high");
    strategy.parameters:addStringAlternative("MvaPrice", "Low", "", "low");
    strategy.parameters:addStringAlternative("MvaPrice", "Close/Tick", "", "close");
    strategy.parameters:addStringAlternative("MvaPrice", "Median", "", "median");
    strategy.parameters:addStringAlternative("MvaPrice", "Typical", "", "typical");
    strategy.parameters:addStringAlternative("MvaPrice", "Weighted", "", "weighted");

    strategy.parameters:addGroup("MVA Parameters for trend");

	strategy.parameters:addString("MvaMET1", "First MA Method", "Method" , "MVA");
    strategy.parameters:addStringAlternative("MvaMET1", "MVA", "MVA" , "MVA");
    strategy.parameters:addStringAlternative("MvaMET1", "EMA", "EMA" , "EMA");
    strategy.parameters:addStringAlternative("MvaMET1", "LWMA", "LWMA" , "LWMA");
    strategy.parameters:addStringAlternative("MvaMET1", "TMA", "TMA" , "TMA");
    strategy.parameters:addStringAlternative("MvaMET1", "SMMA", "SMMA" , "SMMA");
    strategy.parameters:addStringAlternative("MvaMET1", "KAMA", "KAMA" , "KAMA");
    strategy.parameters:addStringAlternative("MvaMET1", "VIDYA", "VIDYA" , "VIDYA");
    strategy.parameters:addStringAlternative("MvaMET1", "WMA", "WMA" , "WMA");
	strategy.parameters:addStringAlternative("MvaMET1", "PPMA", "PPMA" , "PPMA");  
	
    strategy.parameters:addInteger("MvaN1", "MA Periods", "", 20, 1, 2000);
    strategy.parameters:addString("MvaType1", "Price type", "", "Bid");
    strategy.parameters:addStringAlternative("MvaType1", "Bid", "", "Bid");
    strategy.parameters:addStringAlternative("MvaType1", "Ask", "", "Ask");
    strategy.parameters:addString("Mva1TF", "Timeframe", "", "D1");
    strategy.parameters:setFlag("Mva1TF", core.FLAG_PERIODS);
    strategy.parameters:addString("MvaPrice1", "Price to apply MA", "", "close");
    strategy.parameters:addStringAlternative("MvaPrice1", "Open", "", "open");
    strategy.parameters:addStringAlternative("MvaPrice1", "High", "", "high");
    strategy.parameters:addStringAlternative("MvaPrice1", "Low", "", "low");
    strategy.parameters:addStringAlternative("MvaPrice1", "Close/Tick", "", "close");
    strategy.parameters:addStringAlternative("MvaPrice1", "Median", "", "median");
    strategy.parameters:addStringAlternative("MvaPrice1", "Typical", "", "typical");
    strategy.parameters:addStringAlternative("MvaPrice1", "Weighted", "", "weighted");
    strategy.parameters:addInteger("MvaLB1", "Periods to look back", "", 20, 1, 2000);
    strategy.parameters:addDouble("MvaLBSens", "Minimal change of MVA to detect trend (in %)", "", 1, 0.000001, 1000000);
	
 
    CreateTradingParameters();
end

function CreateTradingParameters()
    strategy.parameters:addGroup("Execution Parameters");

    strategy.parameters:addBoolean("AllowTrade", "Allow strategy to trade", "", true);   
    strategy.parameters:setFlag("AllowTrade", core.FLAG_ALLOW_TRADE);
	
	 strategy.parameters:addString("AccountType", "Account Type", "", "Automatic");
    strategy.parameters:addStringAlternative("AccountType", "FIFO", "", "FIFO");
	strategy.parameters:addStringAlternative("AccountType", "non FIFO", "", "NON");
    strategy.parameters:addStringAlternative("AccountType", "Automatic", "", "Automatic");
	
  
	strategy.parameters:addString("EntryExecutionType", "Entry Execution Type", "", "EndOfTurn");
    strategy.parameters:addStringAlternative("EntryExecutionType", "End of Turn", "", "EndOfTurn");
	strategy.parameters:addStringAlternative("EntryExecutionType", "Live", "", "Live");	
 
		
	 strategy.parameters:addGroup("Trade Parameters");
	
	strategy.parameters:addBoolean("CloseOnOpposite", "Close On Opposite", "", true);
    strategy.parameters:addString("CustomID", "Custom Identifier", "The identifier that can be used to distinguish strategy instances", "PMAS");
	
	strategy.parameters:addBoolean("PositionCap", "Use Position Cap", "", false);
	
   
	
	strategy.parameters:addInteger("MaxNumberOfPositionInAnyDirection", "Max Number Of Open Position In Any Direction", "", 2);
	strategy.parameters:addInteger("MaxNumberOfPosition", "Max Number Of Position In One Direction", "", 1);
    	
    strategy.parameters:addString("ALLOWEDSIDE", "Allowed side", "Allowed side for trading or signaling, can be Sell, Buy or Both", "Both");
    strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Both", "", "Both");
    strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Buy", "", "Buy");
    strategy.parameters:addStringAlternative("ALLOWEDSIDE", "Sell", "", "Sell");
	
	strategy.parameters:addString("Direction", "Type of Signal / Trade", "", "direct");
    strategy.parameters:addStringAlternative("Direction", "Direct", "", "direct");
    strategy.parameters:addStringAlternative("Direction", "Reverse", "", "reverse");

    strategy.parameters:addString("Account", "Account to trade on", "", "");
    strategy.parameters:setFlag("Account", core.FLAG_ACCOUNT);
    strategy.parameters:addInteger("Amount", "Trade Amount in Lots", "", 1);
    strategy.parameters:addBoolean("SetLimit", "Set Limit Orders", "", false);
    strategy.parameters:addInteger("Limit", "Limit Order in pips", "", 30);
    strategy.parameters:addBoolean("SetStop", "Set Stop Orders", "", false);
    strategy.parameters:addInteger("Stop", "Stop Order in pips", "", 30);
    strategy.parameters:addBoolean("TrailingStop", "Trailing stop order", "", false);
	
 
	
	
    strategy.parameters:addGroup("Alerts");
    strategy.parameters:addBoolean("ShowAlert", "ShowAlert", "", true);
    strategy.parameters:addBoolean("PlaySound", "Play Sound", "", false);
    strategy.parameters:addFile("SoundFile", "Sound File", "", "");
    strategy.parameters:setFlag("SoundFile", core.FLAG_SOUND);
    strategy.parameters:addBoolean("RecurrentSound", "Recurrent Sound", "", true);
    strategy.parameters:addBoolean("SendEmail", "Send Email", "", false);
    strategy.parameters:addString("Email", "Email", "", "");
    strategy.parameters:setFlag("Email", core.FLAG_EMAIL);
	
	 strategy.parameters:addGroup("Time Parameters");
	 
	strategy.parameters:addInteger("ToTime", "Convert the date to", "", 6);
    strategy.parameters:addIntegerAlternative("ToTime", "EST", "", 1);
    strategy.parameters:addIntegerAlternative("ToTime", "UTC", "", 2);
    strategy.parameters:addIntegerAlternative("ToTime", "Local", "", 3);
    strategy.parameters:addIntegerAlternative("ToTime", "Server", "", 4);
    strategy.parameters:addIntegerAlternative("ToTime", "Financial", "", 5);
	strategy.parameters:addIntegerAlternative("ToTime", "Display", "", 6);
	
    strategy.parameters:addString("StartTime", "Start Time for Trading", "", "00:00:00");
    strategy.parameters:addString("StopTime", "Stop Time for Trading", "", "24:00:00");
 
    strategy.parameters:addBoolean("UseMandatoryClosing", "Use Mandatory Closing", "", false);
    strategy.parameters:addString("ExitTime", "Mandatory Closing  Time", "", "23:59:00");
    strategy.parameters:addInteger("ValidInterval", "Valid interval for operation in second", "", 60);
	
	
end

local AccountType;
local Source,TickSource;
local MaxNumberOfPositionInAnyDirection, MaxNumberOfPosition;
local SoundFile = nil;
local RecurrentSound = false;
local ALLOWEDSIDE;
local AllowTrade;
local Offer;
local CanClose;
local Account;
local Amount;
local SetLimit;
local Limit;
local SetStop;
local Stop;
local TrailingStop;
local ShowAlert;
local Email;
local SendEmail;
local BaseSize;
local EntyExecutionType, ExitExecutionType;
local CloseOnOpposite
local first;
local Direction;
local CustomID;
local PositionCap;
local TF;
local OpenTime, CloseTime, ExitTime;
local LastEntry, LastExit;
local ToTime;
local ValidInterval,UseMandatoryClosing;
 
--Indicator parameters
local price = nil;
local masource = nil;
local masource1 = nil;
local mva = nil;
local mva1 = nil;
local first = true;


local MvaLB1;
local MvaLBSens;

local Confirmation;
local Type;

local adx_price, ADX, ADX_Filter, ADX_Period, ADX_Level;
 
function Prepare( nameOnly)

     CustomID = instance.parameters.CustomID;
    name = profile:id() .. ", " .. instance.bid:name() .. ", " .. CustomID;
    instance:name(name);
	

    if nameOnly then
        return ;
    end
	
	ADX_Filter = instance.parameters.ADX_Filter;
	ADX_Period = instance.parameters.ADX_Period;
	ADX_Level = instance.parameters.ADX_Level;
 
	AccountType = instance.parameters.AccountType;
	EntryExecutionType = instance.parameters.EntryExecutionType;
	ExitExecutionType= instance.parameters.ExitExecutionType;
    CloseOnOpposite = instance.parameters.CloseOnOpposite;
	MaxNumberOfPositionInAnyDirection = instance.parameters.MaxNumberOfPositionInAnyDirection;
	MaxNumberOfPosition = instance.parameters.MaxNumberOfPosition;
	Direction = instance.parameters.Direction == "direct";
	TF= instance.parameters.TF;
	ToTime= instance.parameters.ToTime;
	
	if ToTime == 1 then
	ToTime=core.TZ_EST;
	elseif ToTime == 2 then
	ToTime=core.TZ_UTC;
	elseif ToTime == 3 then
	ToTime=core.TZ_LOCAL;
	elseif ToTime == 4 then
	ToTime=core.TZ_SERVER;
	elseif ToTime == 5 then
	ToTime=core.TZ_FINANCIAL;
	elseif ToTime == 6 then
	ToTime=core.TZ_TS;
	end
		
	 
	PositionCap = instance.parameters.PositionCap;	
	ValidInterval = instance.parameters.ValidInterval;
	UseMandatoryClosing = instance.parameters.UseMandatoryClosing;
	 
	LastEntry=nil;
	LastExit=nil;
  
   
 
   
    PrepareTrading();

     Type=instance.parameters.Type ;
	Confirmation=instance.parameters.Confirmation;
    assert(instance.parameters.PriceTF ~= "t1", "timeframe must not be tick");
    assert(instance.parameters.MvaTF ~= "t1", "timeframe must not be tick");
	 assert(instance.parameters.Mva1TF ~= "t1", "timeframe must not be tick");
	 assert(instance.parameters.adxTF ~= "t1", "timeframe must not be tick");

	
	 assert(core.indicators:findIndicator(instance.parameters.MvaMET) ~= nil, "Please, download and install" .. instance.parameters.MvaMET.. ".LUA indicator");    
    assert(core.indicators:findIndicator(instance.parameters.MvaMET1) ~= nil, "Please, download and install".. instance.parameters.MvaMET1 ..  ".LUA indicator");    	
	
 	if EntryExecutionType== "Live"  
	  then
	 TickSource = ExtSubscribe(1, nil, "t1", instance.parameters.Type == "Bid", "close");
 	end
	 masource = ExtSubscribe(2, nil, instance.parameters.MvaTF, instance.parameters.MvaType == "Bid", "bar");
	 price = ExtSubscribe(3, nil, instance.parameters.PriceTF, instance.parameters.PriceType == "Bid", "bar");
	 adx_price = ExtSubscribe(5, nil, instance.parameters.adxTF, instance.parameters.adxType == "Bid", "bar");
     masource1 = ExtSubscribe(4, nil, instance.parameters.Mva1TF, instance.parameters.MvaType1 == "Bid", "bar");
	 
	 
          	if instance.parameters.MvaMET == "PPMA" then
			 mva = core.indicators:create(instance.parameters.MvaMET, masource, instance.parameters.MvaN);
			else
            mva = core.indicators:create(instance.parameters.MvaMET, masource[instance.parameters.MvaPrice], instance.parameters.MvaN);
			end
			
			
			if instance.parameters.MvaMET1 == "PPMA" then
			mva1 = core.indicators:create(instance.parameters.MvaMET1, masource1, instance.parameters.MvaN1);
			else
            mva1 = core.indicators:create(instance.parameters.MvaMET1,  masource1[instance.parameters.MvaPrice1], instance.parameters.MvaN1);
			end
            MvaLB1 = instance.parameters.MvaLB1;
            MvaLBSens = instance.parameters.MvaLBSens;
			
			ADX = core.indicators:create("ADX", adx_price, ADX_Period);
	
	
	ValidInterval = instance.parameters.ValidInterval;
	UseMandatoryClosing = instance.parameters.UseMandatoryClosing;
	
	 local valid;
    OpenTime, valid = ParseTime(instance.parameters.StartTime);
    assert(valid, "Time " .. instance.parameters.StartTime .. " is invalid");
    CloseTime, valid = ParseTime(instance.parameters.StopTime);
    assert(valid, "Time " .. instance.parameters.StopTime .. " is invalid");
    ExitTime, valid = ParseTime(instance.parameters.ExitTime);
    assert(valid, "Time " .. instance.parameters.ExitTime .. " is invalid");
	
	if UseMandatoryClosing then
        core.host:execute("setTimer", 100, math.max(ValidInterval / 2, 1));
    end
	
end


function ReleaseInstance()
core.host:execute ("killTimer", 100);

end


 -- NG: create a function to parse time
function ParseTime(time)
    local Pos = string.find(time, ":");
    if Pos == nil then
        return nil, false;
    end
    local h = tonumber(string.sub(time, 1, Pos - 1));
    time = string.sub(time, Pos + 1);
    Pos = string.find(time, ":");
    if Pos == nil then
        return nil, false;
    end
    local m = tonumber(string.sub(time, 1, Pos - 1));
    local s = tonumber(string.sub(time, Pos + 1));
    return (h / 24.0 +  m / 1440.0 + s / 86400.0),                          -- time in ole format
           ((h >= 0 and h < 24 and m >= 0 and m < 60 and s >= 0 and s < 60) or (h == 24 and m == 0 and s == 0)); -- validity flag
end



function PrepareTrading()
    ALLOWEDSIDE = instance.parameters.ALLOWEDSIDE;

    local PlaySound = instance.parameters.PlaySound;
    if PlaySound then
        SoundFile = instance.parameters.SoundFile;
    else
        SoundFile = nil;
    end
    assert(not(PlaySound) or (PlaySound and SoundFile ~= ""), "Sound file must be chosen");

    ShowAlert = instance.parameters.ShowAlert;
    RecurrentSound = instance.parameters.RecurrentSound;

    SendEmail = instance.parameters.SendEmail;

    if SendEmail then
        Email = instance.parameters.Email;
    else
        Email = nil;
    end
    assert(not(SendEmail) or (SendEmail and Email ~= ""), "E-mail address must be specified");

    AllowTrade = instance.parameters.AllowTrade;
    Account = instance.parameters.Account;
    Amount = instance.parameters.Amount;
    BaseSize = core.host:execute("getTradingProperty", "baseUnitSize", instance.bid:instrument(), Account);
    Offer = core.host:findTable("offers"):find("Instrument", instance.bid:instrument()).OfferID;
    --CanClose = core.host:execute("getTradingProperty", "canCreateMarketClose", instance.bid:instrument(), Account);
	
	if AccountType== "FIFO" then
	CanClose=false;
    elseif AccountType== "NON" then
	CanClose=true;
	else
	CanClose = core.host:execute("getTradingProperty", "canCreateMarketClose", instance.bid:instrument(), Account);
	end
	
    SetLimit = instance.parameters.SetLimit;
    Limit = instance.parameters.Limit;
    SetStop = instance.parameters.SetStop;
    Stop = instance.parameters.Stop;
    TrailingStop = instance.parameters.TrailingStop;
end
 

function InRange(now, openTime, closeTime)
    if openTime < closeTime then
        return now >= openTime and now <= closeTime;
    end
    if openTime > closeTime then
        return now > openTime or now < closeTime;
    end

    return now == openTime;
end


function ExtUpdate(id, source, period)  -- The method called every time when a new bid or ask price appears.
   
   
    if AllowTrade then
        if not(checkReady("trades")) or not(checkReady("orders")) then
         return ;
        end
		
    end
	
    
	
	if period < 0
	then
        return;
    end
	


	if EntryExecutionType== "Live"  
    then	
	      
	
			if id ~= 1 then
			return;
			end		
		    period= core.findDate (price, TickSource:date(period), false);
	else	
			if id ~= 3 then       
			return;
			end
			
			
	end
	
	
	
	
  
    now = core.host:execute("getServerTime");
	now= core.host:execute ("convertTime",  core.TZ_EST, ToTime, now);
   -- get only time
    now = now - math.floor(now);
	
  
 
	
	    
    mva:update(core.UpdateLast);
	mva1:update(core.UpdateLast);
	ADX:update(core.UpdateLast);

	if not price.close:hasData( period)	 
	then
        return;
    end
	
	if EntryExecutionType== "Live" and id==1 
	or EntryExecutionType~= "Live" and id~=1 then
    EntryFunction(now,period);	
	end
	 

end

 

function EntryFunction( now,period)


    local Return=false;


     if not InRange(now, OpenTime, CloseTime)
	  then            
      return ;
      end
	  
     if ( LastEntry == price:serial(period) )   then
	 return;
	 end	
	 
	 local mvaPeriod = mva.DATA:size() - 1;
	  local mva1Period = mva1.DATA:size() - 1;
	  local adxPeriod = ADX.DATA:size() - 1;
	  
	  if mva1Period < mva1.DATA:first() then
	  return;
	  end
	  
	   if mvaPeriod < mva.DATA:first() then
	  return;
	  end
	  
	  if adxPeriod < ADX.DATA:first() then
	  return;
	  end
	  
	  
	  if ADX_Filter and ADX.DATA[adxPeriod]< ADX_Level then
	  return;
	  end
	  
	 
	 if Confirmation then		
				 
				 
					local diff = mva1.DATA[mva1Period] - mva1.DATA[mva1Period - MvaLB1];
					diff = diff / mva1.DATA[mva1Period - MvaLB1] * 100;
					if diff >= MvaLBSens then
						trend = "U";
					elseif diff <= -MvaLBSens then
						trend = "D";
					else
						trend = "S";
					end
				 
		end
		
		
		
		
		if Type == "CROSS" then
        
				
					if ( core.crossesOver(price.close, mva.DATA[mvaPeriod], period))  then
						if (trend == "U" and Confirmation) or ( not  Confirmation) then
						
						       if Direction then
									BUY();
								else
									SELL();
								end
							LastEntry= price:serial(period);
							Return=true;
						
						elseif  Confirmation then
							if ShowMessage then
								terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW], "Long but without confirmation", instance.bid:date(NOW));
							end
						end
					elseif (core.crossesUnder(price.close, mva.DATA[mvaPeriod], period)) then
						if (trend == "D"  and Confirmation)  or (not  Confirmation) then
							  
							 							            if Direction then
										SELL();
										else
											BUY();
										end
									LastEntry= price:serial(period);
									Return=true;
							  
						elseif  Confirmation  then
							if ShowMessage then
								terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW], "Short but without confirmation", instance.bid:date(NOW));
							end
						end
					end
				 
		else
		
		      
					if price.low[period]< mva.DATA[mvaPeriod] and  price.close[period]  > mva.DATA[mvaPeriod] and  price.close[period-1]  > mva.DATA[mvaPeriod]  then
						if (trend == "U" and Confirmation) or (not  Confirmation) then
					           
							  if Direction then
									BUY();
								else
									SELL();
								end
							LastEntry= price:serial(period);
							Return=true;
							   
						elseif  Confirmation then
							if ShowMessage then
								terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW], "Long but without confirmation", instance.bid:date(NOW));
							end
						end
					elseif  price.high[period] > mva.DATA[mvaPeriod] and  price.close[period]  < mva.DATA[mvaPeriod]  and  price.close[period-1]  < mva.DATA[mvaPeriod]  then
						if (trend == "D"  and  Confirmation) or (not  Confirmation)  then
							
							            if Direction then
										SELL();
										else
											BUY();
										end
									LastEntry= price:serial(period);
									Return=true;
							
						elseif  Confirmation then
							if ShowMessage then
								terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW], "Short but without confirmation", instance.bid:date(NOW));
							end
						end
					end
				end 

       
		
 
	 
	 return Return;
	  
end
-- NG: Introduce async function for timer/monitoring for the order results
function ExtAsyncOperationFinished(cookie, success, message)

    if cookie == 100 then
        -- timer
        if UseMandatoryClosing and AllowTrade then
            now = core.host:execute("getServerTime");
            now= core.host:execute ("convertTime",  core.TZ_EST, ToTime, now);
            -- get only time
            now = now - math.floor(now);
			
            -- check whether the time is in the exit time period
            if now >= ExitTime and now < ExitTime +(ValidInterval / 86400.0) then
                if not checkReady("trades")  then
                    return ;
                end  
				
				     if haveTrades("B")  then
                     exitSpecific("B");
                     Signal ("Close Long");
					 end
					 
					 if haveTrades("S")  then
                     exitSpecific("S");
                     Signal ("Close Short");
					 end
            end
        end
    elseif cookie == 200 and not success then
        terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Open order failed" .. message, instance.bid:date(instance.bid:size() - 1));
    elseif cookie == 201 and not success then
        terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Close order failed" .. message, instance.bid:date(instance.bid:size() - 1));
		
	 end
	 
end

--===========================================================================--
--                    TRADING UTILITY FUNCTIONS                              --
--============================================================================--
function BUY()
    if AllowTrade then
        --if CanClose and CloseOnOpposite and  haveTrades("S") then
		if (CloseOnOpposite or Hedge) and  haveTrades("S")then
            -- close on opposite signal
            exitSpecific("S");
            Signal ("Close Short");
        end

        if ALLOWEDSIDE == "Sell"  then
            -- we are not allowed buys.
            return;
        end 

        enter("B",0);
    else
        Signal ("Buy Signal");	
    end
end   

function HEDGELONG ()
			
	  if ALLOWEDSIDE == "Buy" and haveTrades("B")  then
				-- we are not allowed sells.
				return;
	  end 
			
	 if not haveTrades("B")  then
     return;
     end		

     if AllowTrade then
	       
	 
	        local bCount= tradesCount("B"); 	
			
			if  bCount > 0  then				 
				exitSpecific("B");
				Signal ("Hedge Long");
				enter("S", bCount);
			end

		 
			 
    else
        Signal ("Hedge Long");	
    end

end
function HEDGESHORT ()

       if ALLOWEDSIDE == "Sell" and haveTrades("S")  then
				-- we are not allowed buys.
				return;
			end 
			
	 if not haveTrades("S")  then
     return;
     end	 

     if AllowTrade then
	       
		    local sCount= tradesCount("S"); 	  
			  
        
			if  sCount > 0  then				 
				exitSpecific("S");
				Signal ("Hedge Short");
				 enter("B", sCount);
			end
				 
			 
    else
        Signal ("Hedge Short");	
    end

end



    
function SELL ()		
    if AllowTrade then
        --if CanClose and CloseOnOpposite and  haveTrades("B") then
		if (CloseOnOpposite or Hedge) and  haveTrades("B") then
            -- close on opposite signal
            exitSpecific("B");
            Signal ("Close Long");
        end

        if ALLOWEDSIDE == "Buy"  then
            -- we are not allowed sells.
            return;
        end

        enter("S",0);
    else
        Signal ("Sell Signal");	
    end
end

function Signal (Label)
    if ShowAlert then
        terminal:alertMessage(instance.bid:instrument(), instance.bid[NOW],  Label, instance.bid:date(NOW));
    end

    if SoundFile ~= nil then
        terminal:alertSound(SoundFile, RecurrentSound);
    end

    if Email ~= nil then
        terminal:alertEmail(Email, profile:id().. " : " .. Label , FormatEmail(Source, NOW, Label));
		 
    end
end								

function checkReady(table)
    local rc;
    if Account == "TESTACC_ID" then
        -- run under debugger/simulator
        rc = true;
    else
        rc = core.host:execute("isTableFilled", table);
    end

    return rc;
end

 

function tradesCount(BuySell) 
    local enum, row;
    local count = 0;
    enum = core.host:findTable("trades"):enumerator();
    row = enum:next();
    while row ~= nil do
        if row.AccountID == Account 
		and row.OfferID == Offer 
		and row.QTXT == CustomID   
		and (row.BS == BuySell or BuySell == nil) then
            count = count + 1;
        end

        row = enum:next();
    end

    return count;
end

function haveTrades(BuySell) 
    local enum, row;
    local found = false;
    enum = core.host:findTable("trades"):enumerator();
    row = enum:next();
    while (row ~= nil) do
        if row.AccountID == Account
		and row.OfferID == Offer
		and  row.QTXT == CustomID 
		and (row.BS == BuySell or BuySell == nil) then
            found = true;
            break;
        end
 
        row = enum:next();
    end

    return found;
end

-- enter into the specified direction
function enter(BuySell, hCount)
    -- do not enter if position in the specified direction already exists
    if (tradesCount(BuySell) >= MaxNumberOfPosition
	or (tradesCount(nil) >= MaxNumberOfPositionInAnyDirection))	
	and PositionCap	
	then
        return true;
    end

    -- send the alert after the checks to see if we can trade.
    if (BuySell == "S") then
        Signal ("Sell Signal");	
    else
        Signal ("Buy Signal");	
    end

    return MarketOrder(BuySell,hCount);
end


-- enter into the specified direction
function MarketOrder(BuySell,hCount)

  --  if trade_in_progress then
	--return;
	--end

   -- trade_in_progress=true;
	
    local valuemap, success, msg;
    valuemap = core.valuemap();

    valuemap.Command = "CreateOrder";
    valuemap.OrderType = "OM";
    valuemap.OfferID = Offer;
    valuemap.AcctID = Account;
	if hCount > 0 then
	valuemap.Quantity = hCount * BaseSize;
	else
    valuemap.Quantity = Amount * BaseSize;
	end
    valuemap.BuySell = BuySell;
     valuemap.CustomID = CustomID;

    -- add stop/limit
    valuemap.PegTypeStop = "O";
    if SetStop then 
        if BuySell == "B" then
            valuemap.PegPriceOffsetPipsStop = -Stop;
        else
            valuemap.PegPriceOffsetPipsStop = Stop;
        end
    end
    if TrailingStop then
        valuemap.TrailStepStop = 1;
    end

    valuemap.PegTypeLimit = "O";
    if SetLimit then
        if BuySell == "B" then
            valuemap.PegPriceOffsetPipsLimit = Limit;
        else
            valuemap.PegPriceOffsetPipsLimit = -Limit;
        end
    end

    if (not CanClose) then
        valuemap.EntryLimitStop = 'Y'
    end

    success, msg = terminal:execute(200, valuemap);

    if not(success) then
        terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Open order failed" .. msg, instance.bid:date(instance.bid:size() - 1));
        return false;
    end

    return true;
end




function exitSpecific(BuySell)

 if not AllowTrade then
 return;
 end
 
--side
-- closes all positions of the specified direction (B for buy, S for sell)
 
    local enum, row, valuemap;

    enum = core.host:findTable("trades"):enumerator();
    while true do
        row = enum:next();
        if row == nil then
            break;
        end
        if row.AccountID == Account and
           row.OfferID == Offer and
           row.BS == BuySell and
           row.QTXT == CustomID then
            -- if trade has to be closed

						if CanClose then
										-- non-FIFO account, create a close market order
										valuemap = core.valuemap();
										valuemap.OrderType = "CM";
										valuemap.OfferID = Offer;
										valuemap.AcctID = Account;
										valuemap.Quantity = row.Lot;
										valuemap.TradeID = row.TradeID;
										valuemap.CustomID = CustomID;
										if row.BS == "B" then
											valuemap.BuySell = "S";
										else
											valuemap.BuySell = "B";
										end
										success, msg = terminal:execute(201, valuemap);
										 if not(success) then
											terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Close order failed" .. msg, instance.bid:date(instance.bid:size() - 1));
											return false;
										end
						  else
											-- FIFO account, create an opposite market order
											valuemap = core.valuemap();
											valuemap.OrderType = "OM";
											valuemap.OfferID = Offer;
											valuemap.AcctID = Account;
											--valuemap.Quantity = Amount*BaseSize;
							                valuemap.Quantity = row.Lot;
											valuemap.CustomID = CustomID;
											if row.BS == "B" then
												valuemap.BuySell = "S";
											else
												valuemap.BuySell = "B";
											end
											success, msg = terminal:execute(201, valuemap);
											 if not(success) then
												terminal:alertMessage(instance.bid:instrument(), instance.bid[instance.bid:size() - 1], "Close order failed" .. msg, instance.bid:date(instance.bid:size() - 1));
												return false;
											end
						end
        end
    end
end 

dofile(core.app_path() .. "\\strategies\\standard\\include\\helper.lua");
 