-- More information about this indicator can be found at:
-- https://fxcodebase.com/code/viewtopic.php?f=17&t=73145

--+------------------------------------------------------------------------------------------------+
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--|                                                                         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("5-bar-reversal");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Indicator);

  
 	indicator.parameters:addGroup("Calculation");	
 
    indicator.parameters:addInteger("Period", "Period", "", 6, 1, 2000); 
    indicator.parameters:addBoolean("Signal", "Signal Mode", "", false); 
	
	indicator.parameters:addGroup("Line Style");	
	indicator.parameters:addInteger("Size", "Arrow Size", "", 20); 
   indicator.parameters:addColor("clrUP", "Up Arrow", "" ,  core.COLOR_UPCANDLE);
    indicator.parameters:addColor("clrDN",  "Down Arrow", "" , core.COLOR_DOWNCANDLE);	
	indicator.parameters:addColor("color", "Bar Color", "", core.rgb(0, 0, 255)); 

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 Period;
	
-- Routine
 function Prepare(nameOnly)   
 
    
	Period=instance.parameters.Period;
	Signal=instance.parameters.Signal;	
	source = instance.source
 
    local name = profile:id() .. "(" ..  instance.source:name().. "," ..  Period  .. ")";
    instance:name(name); 


    if   (nameOnly) then
        return;
    end
 
	first=source:first()+Period*2 ; 
	 
	
	if Signal then
    Bar = instance:addStream("Bar", core.Bar, name, "Bar", instance.parameters.color, first );
    Bar:setPrecision(math.max(2, instance.source:getPrecision())); 
    Bar:addLevel(0);	
	else
    Bar = instance:addInternalStream(0, 0);	
	end
	
	up = instance:createTextOutput ("Up", "Up", "Wingdings", instance.parameters.Size, core.H_Center, core.V_Bottom, instance.parameters.clrUP, 0);
    down = instance:createTextOutput ("Dn", "Dn", "Wingdings", instance.parameters.Size, core.H_Center, core.V_Top, instance.parameters.clrDN, 0);
 	
 
end


function Update(period, mode)

 

	if period <= first
	or  not source:hasData(period) 
	then
	return;
	end
	
 
	
	local rmin, rmax=mathex.minmax(source, period-Period, period);
	local lmin, lmax=mathex.minmax(source,period-Period-1-Period, period-Period-1);	  
 
 
    up:setNoData(period-Period);
    down:setNoData(period-Period);		
	
	 if ((rmax>lmax) and (source[period]<lmin))then
		down:set(period-Period-1, source.high[period-Period-1], "\218", source.high[period-Period-1]);	
		Bar[period-Period]= -1;	
	
      end
      if ((rmin<lmin) and (source[period]>lmax)) then 
 	   Bar[period-Period]= 1;
       up:set(period-Period-1, source.low[period-Period-1], "\217", source.low[period-Period-1]);			
	  end 
	  	
 
	
end
 


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--|                                                                    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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--+------------------------------------------------------------------------------------------------+