-- Id: 15555
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=1459

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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("Pin Bar Oscillator");
    indicator:description("Pin Bar Oscillato");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Oscillator);
	indicator.parameters:addGroup("Calculation");   
    indicator.parameters:addInteger("BB", "Body Lengt", "Body Lengt", 33);
	indicator.parameters:addInteger("BP", "Body Position", "Body Position", 33);
	indicator.parameters:addInteger("NB", "Nose Lengt", "Nose Lengt", 33);
	indicator.parameters:addBoolean("LA", "Left Eye Check", "Left Eye Check", true);
	
	indicator.parameters:addGroup("Style");
	indicator.parameters:addColor("Up", "Color of Up", "Color of Up", core.rgb(255, 0, 0));
	indicator.parameters:addColor("Down", "Color of Down", "Color of Down", core.rgb(0, 255, 0));
	
	indicator.parameters:addGroup("Trend Filter");
	indicator.parameters:addBoolean("Filter", "Use Filter", "", true);
	  indicator.parameters:addInteger("Period", "Period", "", 34);
	 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");
	 
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 Body=nil;
local Nose=nil;
local Position=nil;
local Left=nil;
local first;
local source = nil;

-- Streams block
local Signal = nil;
local Period, Method, MA,Filter;

-- Routine
 function Prepare(nameOnly)
    source = instance.source;
   
	Nose= instance.parameters.NB;
	Body = instance.parameters.BB;
	Position= instance.parameters.BP;
    Left =  instance.parameters.LA;
    local name = profile:id() .. "(" .. source:name() .. ")";
    instance:name(name);
	
	
	if   (nameOnly) then
        return;
    end
	
	Filter=  instance.parameters.Filter;
	Period =  instance.parameters.Period;
	Method =  instance.parameters.Method;
	
    assert(core.indicators:findIndicator(Method) ~= nil, Method .. " indicator must be installed");
	MA = core.indicators:create(Method, source.close, Period);	
	first = MA.DATA:first();
	
	Signal = instance:addStream("Signal", core.Bar, name .. ".Signal", "Signal", instance.parameters.Up, first)	
    Signal:setPrecision(math.max(2, instance.source:getPrecision()));
end

-- Indicator calculation routine
-- TODO: Add your code for calculation output values
function Update(period)

if Filter then
MA:update(mode);
end 

    if period < first+1 or not  source:hasData(period) then
	return;
	end
	
		
	
    Calculation (period-1);
	 
end

function Calculation(period)


    Signal[period]=0;
	
	
	local Bar= (source.high[period]- source.low[period])/100;
	
			   if Left then 		   
			   
			   
			        if  math.abs(source.close[period]-source.open[period]) <= Bar* Body then
					
					
								 if math.max(source.close[period], source.open[period]) <= source.low[period] +  Bar *Position then 
									 if source.high[period]- source.high[period-1] >= Nose *Bar then
										 if source.low[period-1]< math.min (source.open[period],source.close[period]) and source.high[period-1] > math.max (source.open[period],source.close[period])
										 and (not Filter  or (Filter and source.close[period]> MA.DATA[period]))
										 then 
										 Signal[period]=1;
										 end
									 end
								 end
								 if math.min(source.close[period], source.open[period]) >= source.high[period] -  Bar *Position then 
								   
									 if source.low[period-1] - source.low[period]  >= Nose *Bar then
									     if source.high[period-1] >  math.max (source.open[period],source.close[period]) and source.low[period-1] <  math.max (source.open[period],source.close[period])
										 and (not Filter  or (Filter and source.close[period]< MA.DATA[period]))
										 then 
									      Signal[period]=-1;
										  end
									end
								 end			 
					end
			         
			   
			   else
			   
				
					if  math.abs(source.close[period]-source.open[period]) <= Bar* Body then
					
					
								 if math.max(source.close[period], source.open[period]) <= source.low[period] +  Bar *Position
								 then 
									 if source.high[period]- source.high[period-1] >= Nose *Bar 
									 and (not Filter  or (Filter and source.close[period]> MA.DATA[period]))
									 then
									 Signal[period]=1;
									 end
								 end
								 if math.min(source.close[period], source.open[period]) >= source.high[period] -  Bar *Position
								 then 
								   
									 if source.low[period-1] - source.low[period]  >= Nose *Bar
									 and (not Filter  or (Filter and source.close[period]< MA.DATA[period]))
									 then
									 Signal[period]=-1;
									end
								 end			 
					end
				end	
				
				if Signal[period]== 1  then
				Signal:setColor(period, instance.parameters.Up);
				else
				Signal:setColor(period, instance.parameters.Down);
				end
				
end