-- Id: 14276

-- More information about this indicator can be found at:
--http://fxcodebase.com/code/viewtopic.php?f=17&t=62296

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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("Tick Count");
    indicator:description("Tick Count");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Oscillator);
    indicator.parameters:addGroup("Calculation");
    indicator.parameters:addInteger("Period", "Period (In seconds)", "Period", 60);
	indicator.parameters:addGroup("Style");
    indicator.parameters:addColor("color1", "Color of Count", "Color of Count", core.rgb(255, 0, 0));
	indicator.parameters:addInteger("width1", "Line width", "", 1, 1, 5);
    indicator.parameters:addInteger("style1", "Line style", "", core.LINE_SOLID);
    indicator.parameters:setFlag("style1", core.FLAG_LINE_STYLE);
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 Period;

local first;
local source = nil;

-- Streams block
local Count = nil;
local Unit;
-- Routine
function Prepare(nameOnly)
    Period = instance.parameters.Period;
    source = instance.source;
    first = source:first();

    local name = profile:id() .. "(" .. source:name() .. ", " .. tostring(Period) .. ")";
    instance:name(name);
	 
	Unit= (1 / 86400.0)*Period; 
	
    if   (nameOnly) then
        return;
    end
        Count = instance:addStream("Count", core.Line, name, "Count", instance.parameters.color1, first);
    Count:setPrecision(math.max(2, instance.source:getPrecision()));
		Count:setWidth(instance.parameters.width1);
        Count:setStyle(instance.parameters.style1);
     
end

-- Indicator calculation routine
-- TODO: Add your code for calculation output values
function Update(period)
    
	if period < first or not  source:hasData(period) then
	return;
	end

    Count[period]=0;
	
    for i= period, source:first() , -1 do		
    
		if source:date(i)> (source:date(period) - Unit) then
		Count[period] = Count[period]+1;
		else
		break;
		end

	end
	
end