-- Id: 22381
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=66694

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-- Indicator profile initialization routine

function Init()
    indicator:name("Pivot Line Analysis Market Sentiment Indicator");
    indicator:description("");
    indicator:requiredSource(core.Bar);
    indicator:type(core.Oscillator);
	
 
	
end

-- Indicator instance initialization routine
-- Processes indicator parameters and creates output streams
-- Parameters block

 
local first;
local source = nil;
local open=nil;
local close=nil;
local high=nil;
local low=nil; 
local SourceData, loading;
local TF="D1";
local dayoffset, weekoffset;
-- Routine
 function Prepare(nameOnly)   
  
	
	local Parameters= "";
 
    local name = profile:id() .. "(" ..  instance.source:name()  .. ")";
    instance:name(name); 


    if   (nameOnly) then
        return;
    end
	
	dayoffset = core.host:execute("getTradingDayOffset");
    weekoffset = core.host:execute("getTradingWeekOffset"); 
			
    source = instance.source;
	first=source:first();
	
	
	SourceData = core.host:execute("getSyncHistory", source:instrument(), TF, source:isBid(), 1, 100, 101);
	loading=true;   
   
 
	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", "ZONE", open, high, low, close);
    
	
	
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
function Update(period, mode)


if period < first then
	return;
end

 local p =  Initialization(period); 
     
	    if not p 
		or p<= 1 
		then
		return;
		end
	
 
local  H1 = SourceData.high[p];
local L1 = SourceData.low[p];
local C = SourceData.close[p];
 
local HH1 = SourceData.high[p-1];
local LL1 = SourceData.low[p-1];
local CC = SourceData.close[p-1];
 
local Pivot1 = (HH1 + LL1 + CC) / 3;
local R11 = 2*((HH1 + LL1 + CC) / 3)- LL1;
local S11 = 2*((HH1 + LL1 + CC) / 3)- HH1;
local Pivot = (H1 + L1 + C) / 3;
local R1 = 2*((H1 + L1 + C) / 3)- L1;
local S1 = 2*((H1 + L1 + C) / 3)- H1;
	
	
 
local R=nil;
local G=nil;
local B=nil;
 
local FlagUp=0;
local FlagDown=0; 

--Outside Pivot Up
if R1 > R11 and S1 < S11 and Pivot > Pivot1 then
 Flagup = 3;
 FlagDown = -2;
 R = 0;
 G = 0;
 B = 255;
end



--Outside Pivot Down
if R1 > R11 and S1 < S11 and Pivot < Pivot1 then
 FlagUp = 2;
 FlagDown = -3;
 R = 0;
 G = 0;
 B = 255;
end
 
--Inside Pivot Up
if R1 < R11 and S1 > S11 and Pivot > Pivot1 then
 FlagUp = 1.5;
 FlagDown = 0.5;
 R = 0;
 G = 0;
 B = 255;
end
 
--Inside Pivot Down
if R1 < R11 and S1 > S11 and Pivot < Pivot1 then 
 FlagUp = -0.5;
 FlagDown = -1.5;
 R = 0;
 G = 0;
 B = 255;
end
 
--Up Pivot
if R1 > R11 and S1 > S11 then
 FlagUp = 2;
 FlagDown = -2;
 R = 0;
 G = 255;
 B = 0;
end
 
--Down Pivot
if R1 < R11 and S1 < S11 then
 FlagUp = 2;
 FlagDown = -2;
 R = 255;
 G = 0;
 B = 0;
end		



    high[period]= FlagUp;
	low[period]= FlagDown;		   
	close[period] = FlagDown;
	open[period]  = FlagUp;	
     
	if R~= nil and G~= nil and B~= nil then
    open:setColor(period, core.rgb(R, G, B));
	end
				  
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