-- Id: 24971
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=68454

--+------------------------------------------------------------------+
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--|                                            http://fxcodebase.com |
--+------------------------------------------------------------------+
--|                                      Developed by : Mario Jemic  |                    
--|                                          mario.jemic@gmail.com   |
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--+------------------------------------------------------------------+

-- Indicator profile initialization routine
-- Defines indicator profile properties and indicator parameters
-- TODO: Add minimal and maximal value of numeric parameters and default color of the streams


function AddParam(id, frame )

    indicator.parameters:addGroup(id.. ". Time Frame");
	 
	
	indicator.parameters:addBoolean("USE".. id, "Use this Slot", "", true);	
	
    indicator.parameters:addString("TF" .. id,  "Time frame", "", frame);
    indicator.parameters:setFlag("TF" .. id, core.FLAG_PERIODS);
	
	
	
	indicator.parameters:addString("Price".. id, "Price Source", "", "close");
    indicator.parameters:addStringAlternative("Price".. id, "OPEN", "", "open");
    indicator.parameters:addStringAlternative("Price".. id, "HIGH", "", "high");
    indicator.parameters:addStringAlternative("Price".. id, "LOW", "", "low");
    indicator.parameters:addStringAlternative("Price".. id,"CLOSE", "", "close");
    indicator.parameters:addStringAlternative("Price".. id, "MEDIAN", "", "median");
    indicator.parameters:addStringAlternative("Price".. id, "TYPICAL", "", "typical");
    indicator.parameters:addStringAlternative("Price".. id, "WEIGHTED", "", "weighted");	
	
	indicator.parameters:addInteger("Period".. id, "Period", "", 14);

	indicator.parameters:addString("Method".. id, "MA Method", "Method" , "MVA");
    indicator.parameters:addStringAlternative("Method".. id, "MVA", "MVA" , "MVA");
    indicator.parameters:addStringAlternative("Method".. id, "EMA", "EMA" , "EMA");
    indicator.parameters:addStringAlternative("Method".. id, "LWMA", "LWMA" , "LWMA");
    indicator.parameters:addStringAlternative("Method".. id, "TMA", "TMA" , "TMA");
    indicator.parameters:addStringAlternative("Method".. id, "SMMA", "SMMA" , "SMMA");
    indicator.parameters:addStringAlternative("Method".. id, "KAMA", "KAMA" , "KAMA");
    indicator.parameters:addStringAlternative("Method".. id, "VIDYA", "VIDYA" , "VIDYA");
    indicator.parameters:addStringAlternative("Method".. id, "WMA", "WMA" , "WMA");


end


function Init()
    indicator:name("MA Tree");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Indicator);
	
    indicator.parameters:addGroup("Calculation");	
 
	
    AddParam(1, "m1");	
    AddParam(2, "m5");	
    AddParam(3, "m15");	
    AddParam(4, "m30");
    AddParam(5, "H1");
	AddParam(6, "H2");	
    AddParam(7, "H3");	
    AddParam(8, "H4");	
    AddParam(9, "H6");
    AddParam(10, "H8");
	AddParam(11, "D1");	
    AddParam(12, "W1");
    AddParam(13, "M1");
	
	
    indicator.parameters:addGroup("Style");
    indicator.parameters:addColor("Color", "Line Color", "", core.COLOR_LABEL );
	indicator.parameters:addInteger("Width", "Line width", "", 1, 1, 5);
	indicator.parameters:addInteger("Style", "Line style", "", core.LINE_SOLID);
	indicator.parameters:setFlag("Style", core.FLAG_LINE_STYLE);
	indicator.parameters:addDouble("Size", "Font Size", "", 10);
	--indicator.parameters:addDouble("Multiplier", "Multiplier", "", 50);
	
end

-- Indicator instance initialization routine
-- Processes indicator parameters and creates output streams
-- TODO: Refine the first period calculation for each of the output streams.
-- TODO: Calculate all constants, create instances all subsequent indicators and load all required libraries
-- Parameters block

	local source = nil;
	local Price={};
	local Method={};
	local Period={};
	local MA={};
	local TF={};
	local SourceData={};
	local loading={};  
	local Size;
	local USE={};
	local Count=13;
    local Number;
	local Style, Width, Color
    local Chart;
	local iLabel={"m1", "m5", "m15", "m30", "H1", "H2", "H3", "H4", "H6", "H8", "D1", "W1", "M1"};
	local Label={};
	--local Multiplier;
-- Routine
 function Prepare(nameOnly)   
 
    local name = profile:id() .. "(" ..  instance.source:name()  .. ")";
    instance:name(name); 


    if   (nameOnly) then
        return;
    end

    	
	
    source = instance.source;
    Shift=instance.parameters.Shift;
    Size=instance.parameters.Size;
	--Multiplier=instance.parameters.Multiplier;
	Style=instance.parameters.Style;
	Width=instance.parameters.Width;
	Color=instance.parameters.Color;
	

    
	
	Number=0;
	
	
    local s1, e1, s1, e1;
    s1, e1 = core.getcandle(source:barSize(), core.now(), 0, 0);
 
   
    for i = 1, Count, 1 do	

          s2, e2 = core.getcandle(instance.parameters:getString("TF" .. i), core.now(), 0, 0);	
		
	     if instance.parameters:getBoolean("USE" .. i)   and  ((e1 - s1) <= (e2 - s2)) then
		 Number=Number+1;
		 		
			  TF[Number]= instance.parameters:getString("TF" .. i);	
			  Method[Number]= instance.parameters:getString("Method" .. i);	
			  Price[Number]= instance.parameters:getString("Price" .. i);	
			  Period[Number]= instance.parameters:getInteger("Period" .. i);	
			  Label[Number]=iLabel[i];
			  
		 end   
		   
	  
    end
     
	
	 s1, e1 = core.getcandle(source:barSize(), core.now(), 0, 0);

    for i = 1, Number, 1 do	
	
	     
	    if (TF[i] == source:barSize() )     then
		SourceData[i]=source;
		Chart=i;
		loading[i]= false;
		
    assert(core.indicators:findIndicator(Method[i]) ~= nil, Method[i] .. " indicator must be installed");
		MA[i] = core.indicators:create(Method[i], SourceData[i][Price[i]], Period[i]);
		
		else 	
	    SourceData[i] = core.host:execute("getSyncHistory", source:instrument(), TF[i], source:isBid(),  1 , 200+i, 100+i);	   
		loading[i]= true;	

		MA[i] = core.indicators:create(Method[i], SourceData[i][Price[i]], Period[i]);
		end
		
	end	  
    
	instance:ownerDrawn(true);

end

 

-- Indicator calculation routine
-- TODO: Add your code for calculation output values
function Update(period,mode)
 
	 	local Flag = false;	

	
	
	
    for j = 1, Number, 1 do			
		if loading[j] then	
		Flag=true;
		end	 
 
	end    
	
     	if Flag then
		return;
		end
		
		
    for j = 1, Number, 1 do		
		if MA[j]~= nil then
		MA[j]:update(mode);
		end
	end
	
		
end

local init =true;

function Draw(stage, context)
    if stage ~= 2
	
	then
	return;
	end
	
	local Flag = false;	

	
	
	
    for j = 1, Number, 1 do			
		if loading[j] then	
		Flag=true;
		end	 
 
	end    
	
     	if Flag then
		return;
		end
		
		if init then
		context:createFont (2, "Arial", Size, Size, 0);
		init=false;
		end
      
	    local x = context:right ()  - (context:right () -context:left ())/3;		
 		    
		
		context:createPen (1, context:convertPenStyle (Style), Width, Color);
		
		for i = Number, 1, -1 do 	
					
                
			AddLine(context, x, i);
            			
			
		 end
	 
         		 
 
		
end




function AddLine(context, x, i)

    if  MA[i]== nil  then
	return;
	end


    if not MA[i].DATA:hasData(MA[i].DATA:size()-1) then
	return;
	end
	

            Delta=(context:right ()-x)/Number;

       

			iLabel= Label[i];
            visible, y1= context:pointOfPrice (MA[i].DATA[MA[i].DATA:size()-1]); 			
			context:drawLine (1, x, y1, x+i*Delta, y1);
			width, height =context:measureText (2, iLabel, 0)
            context:drawText (2, iLabel, Color, -1, x+i*Delta-width, y1-height, x+i*Delta, y1, 0);
end

-- the function is called when the async operation is finished

function AsyncOperationFinished(cookie)

     local j;	 
	local Flag = false;	
	local Count=0;	
	
	
	
    for j = 1, Number, 1 do
		
			  if cookie == (100+j) then
			  loading[j] = true;
		      elseif  cookie == (200+j) then
			  loading[j] = false;  
			  instance:updateFrom(0);		 
              end
			  
		if loading[j] then
		Count=Count+1;
		Flag=true;
		end	 
 
	end    
	
     	if Flag then
		core.host:execute ("setStatus", " Loading ".. (Number-Count) .."/" .. Number);
		else
		core.host:execute ("setStatus", " Loaded ".. (Number-Count) .."/" .. Number);
		end
   
        
		return core.ASYNC_REDRAW ;
   
end