-- Id: 20626
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=65776

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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("Other Source Different time Oscillator");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Oscillator);
	
	indicator.parameters:addString("Instrument" , "Instrument", "", "EUR/USD");
    indicator.parameters:setFlag("Instrument"  , core.FLAG_INSTRUMENTS);

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 Instrument;
local open=nil;
local close=nil;
local high=nil;
 
local SourceData,loading;
local TF;
-- Routine
function Prepare(nameOnly)
   
    source = instance.source;
	TF=source:barSize();
	
	Instrument= instance.parameters.Instrument;
	
	  dayoffset = core.host:execute("getTradingDayOffset");
    weekoffset = core.host:execute("getTradingWeekOffset");
	
	
    first =  source:first();

    local name = profile:id() .. "(" .. source:name() .. ", " .. Instrument .. ")";
    instance:name(name);
	
   	SourceData = core.host:execute("getSyncHistory", Instrument, TF , source:isBid(), 0, 100, 101);
	loading=true;


    if (not (nameOnly)) then	
	open = instance:addStream("open", core.Line, name, "open", core.rgb(0, 0, 0), first)
    open:setPrecision(math.max(2, instance.source:getPrecision()));
    high = instance:addStream("high", core.Line, name, "high", core.rgb(0, 0, 0), first)
    high:setPrecision(math.max(2, instance.source:getPrecision()));
    low = instance:addStream("low", core.Line, name, "low", core.rgb(0, 0, 0), first)
    low:setPrecision(math.max(2, instance.source:getPrecision()));
    close = instance:addStream("close", core.Line, name, "close", core.rgb(0, 0, 0), first)
    close:setPrecision(math.max(2, instance.source:getPrecision()));
    instance:createCandleGroup("ZONE", "", open, high, low, close);
    end
end


function   Initialization(period)

    local Candle;
    Candle = core.getcandle(TF, source:date(period), dayoffset, weekoffset);

  
    if loading or SourceData:size() == 0 then
        return false ;
    end

    
    if period < source:first() then
        return false;
    end

    local p = core.findDate(SourceData, Candle, false);

    -- candle is not found
    if p < 0 then
        return false;
	else return p;	
    end
	
end	

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

        local p =  Initialization(period) 
     
	    if not p then
		return;
		end
		
 

   
	
	 open[period]=SourceData.open[p];
	close[period]=SourceData.close[p];
	high[period]=SourceData.high[p];
	low[period]=SourceData.low[p];

    
	
end
-- the function is called when the async operation is finished
function AsyncOperationFinished(cookie)
    if cookie == 100 then
        loading = false;
        instance:updateFrom(0);
    elseif cookie == 101 then
        loading = true;
    end
end