-- More information about this indicator can be found at:
-- https://fxcodebase.com/code/viewtopic.php?f=17&t=73506

--+------------------------------------------------------------------------------------------------+
--|                                                            Copyright © 2023, Gehtsoft USA LLC  | 
--|                                                                         http://fxcodebase.com  |
--+------------------------------------------------------------------------------------------------+
--|                                                                   Developed by : Mario Jemic   |                    
--|                                                                       mario.jemic@gmail.com    |
--|                                                        https://AppliedMachineLearning.systems  |
--|                                                                       https://mario-jemic.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 Init()
    indicator:name("MA StairStep with percent variation");
    indicator:description("");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Indicator);

  
 	indicator.parameters:addGroup("Calculation");	

	indicator.parameters:addString("Method", "MA Method", "Method" , "MVA");
    indicator.parameters:addStringAlternative("Method", "MVA", "MVA" , "MVA");
    indicator.parameters:addStringAlternative("Method", "EMA", "EMA" , "EMA");
    indicator.parameters:addStringAlternative("Method", "LWMA", "LWMA" , "LWMA");
    indicator.parameters:addStringAlternative("Method", "TMA", "TMA" , "TMA");
    indicator.parameters:addStringAlternative("Method", "SMMA", "SMMA" , "SMMA");
    indicator.parameters:addStringAlternative("Method", "KAMA", "KAMA" , "KAMA");
    indicator.parameters:addStringAlternative("Method", "VIDYA", "VIDYA" , "VIDYA");
    indicator.parameters:addStringAlternative("Method", "WMA", "WMA" , "WMA")
	
    indicator.parameters:addDouble("percent", "Percent", "", 1, 0, 2000);
    indicator.parameters:addInteger("Period", "Period", "", 100, 1, 2000);
    indicator.parameters:addInteger("SignalPeriod", "Signal Period", "", 30, 1, 2000);
	
	indicator.parameters:addGroup("Line Style");	
    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:addColor("color1", "Line Color", "", core.rgb(0, 255, 0)); 
	indicator.parameters:addColor("color2", "Signal Line Color", "", core.rgb(255, 0, 0));
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 first;
local source = nil;
local Method, percent, Period,SignalPeriod ; 
local Indicator;
	
-- Routine
 function Prepare(nameOnly)   
 
    Method=instance.parameters.Method;
	percent=instance.parameters.percent;
	Period=instance.parameters.Period;
	SignalPeriod=instance.parameters.SignalPeriod;
	source = instance.source
 
    local name = profile:id() .. "(" ..  instance.source:name().. "," .. Method .. "," ..  percent.. "," ..  Period .. "," ..  SignalPeriod  .. ")";
    instance:name(name); 


    if   (nameOnly) then
        return;
    end
	
	Indicator= core.indicators:create(Method, source, Period);
	first=Indicator.DATA:first() ; 
	
	 
	
	
    Line = instance:addStream("Line", core.Line, name, "Line", instance.parameters.color1, first );
    Line:setPrecision(math.max(2, instance.source:getPrecision()));
    Line:setWidth(instance.parameters.width);
    Line:setStyle(instance.parameters.style);
    Line:addLevel(0);	
	
	
    Signal = instance:addStream("Signal", core.Line, name, "Signal", instance.parameters.color2, first+SignalPeriod );
    Signal:setPrecision(math.max(2, instance.source:getPrecision()));
    Signal:setWidth(instance.parameters.width);
    Signal:setStyle(instance.parameters.style);
    Signal:addLevel(0);
	
end


function Update(period, mode)

	Indicator:update(mode); 

	if period <= first
	or  not source:hasData(period) 
	then
	Line[period]=source[period];
	return;
	end
	  
	if(Indicator.DATA[period] > Line[period-1] + (Indicator.DATA[period]/100)*percent) then
	   Line[period] = Indicator.DATA[period]
	elseif (Indicator.DATA[period] < Line[period-1] - (Indicator.DATA[period]/100)*percent) then
	   Line[period] = Indicator.DATA[period]
	else
	   Line[period] = Line[period-1]
	end

	if period <= first+SignalPeriod
	or  not source:hasData(period) 
	then
	return;
	end	  
	
	Signal[period]=mathex.avg(Line, period-SignalPeriod+1, period) ;
 	
end

 


--+------------------------------------------------------------------------------------------------+
--|                                                                    We appreciate your support. | 
--+------------------------------------------------------------------------------------------------+
--|                                                               Paypal: https://goo.gl/9Rj74e    |
--|                                                             Patreon :  https://goo.gl/GdXWeN   |  
--+------------------------------------------------------------------------------------------------+
--|                                                                   Developed by : Mario Jemic   |                    
--|                                                                       mario.jemic@gmail.com    |
--|                                                        https://AppliedMachineLearning.systems  |
--|                                                                       https://mario-jemic.com/ |
--+------------------------------------------------------------------------------------------------+


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--|BitCoin                    : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF                                 |  
--|Ethereum                   : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D                         |  
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--|SHIB Address               : 0x1817D9ebb000025609Bf5D61E269C64DC84DA735                         |              
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--|BitCoin Cash               : 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg                                 | 
--|LiteCoin                   : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD                                 |  
--+------------------------------------------------------------------------------------------------+