-- Id: 11313
-- More information about this indicator can be found at:
-- http://fxcodebase.com/code/viewtopic.php?f=17&t=60411

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--|                                            http://fxcodebase.com |
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-- Indicator profile initialization routine
function Init()
    indicator:name("Chande Momentum Oscillator with Alert");
    indicator:description("");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Oscillator);
    indicator:setTag("group", "Classic Oscillators");
	
	  indicator.parameters:addGroup("Mode");  
	indicator.parameters:addString("Live", "End of Turn / Live", "", "Live");
    indicator.parameters:addStringAlternative("Live", "End of Turn", "", "End of Turn");
	indicator.parameters:addStringAlternative("Live", "Live", "", "Live");
   

    indicator.parameters:addGroup("Calculation");
    indicator.parameters:addInteger("P", "Period", "", 9);

    indicator.parameters:addGroup("Style");
    indicator.parameters:addColor("CMO_color", "Line Color", "", core.rgb(0, 0, 255));
    indicator.parameters:addInteger("CMO_width", "Line Width", "", 1, 1, 5);
    indicator.parameters:addInteger("CMO_style", "Line Style", "", core.LINE_SOLID);
    indicator.parameters:setFlag("CMO_style", core.FLAG_LEVEL_STYLE);
	
	indicator.parameters:addGroup("OB/OS Levels");	
    indicator.parameters:addDouble("overbought", "Overbought Level","", 80);
    indicator.parameters:addDouble("oversold","Oversold Level","", -80);
	indicator.parameters:addColor("level_overboughtsold_color", "Line Color","", core.rgb(128, 128, 128));
    indicator.parameters:addInteger("level_overboughtsold_width","Line width","", 1, 1, 5);
    indicator.parameters:addInteger("level_overboughtsold_style", "Line Style","", core.LINE_SOLID);
    indicator.parameters:setFlag("level_overboughtsold_style", core.FLAG_LEVEL_STYLE);
	
	indicator.parameters:addGroup("Alert Style");
    indicator.parameters:addColor("Up", "Up Trend Color", "", core.rgb(0, 0, 255));
	indicator.parameters:addColor("Down", "Down Trend Color", "", core.rgb(0, 0, 255));
	indicator.parameters:addInteger("Size", "Label Size", "", 10, 1 , 100);
	
	indicator.parameters:addGroup("Alerts Sound");   
    indicator.parameters:addBoolean("PlaySound", "Play Sound", "", true);	
    indicator.parameters:addBoolean("RecurrentSound", "Recurrent Sound", "", false);
	
	indicator.parameters:addGroup("Alerts Email");   
	indicator.parameters:addBoolean("SendEmail", "Send Email", "", true);
    indicator.parameters:addString("Email", "Email", "", "");
    indicator.parameters:setFlag("Email", core.FLAG_EMAIL);
	indicator.parameters:addBoolean("Show", "Show Dialog box Alert", "", true);
	
	
	Parameters (1, "Central Line Cross");
	Parameters (2, "OB Line Cross")
	Parameters (3, "OS Line Cross")
end


function Parameters ( id, Label )
  
  
   indicator.parameters:addGroup(Label .. " Alert");
  
    indicator.parameters:addBoolean("ON"..id , "Show " .. Label .." Alert" , "", false);


    indicator.parameters:addFile("Up"..id, Label .. " Cross Over Sound", "", "");
    indicator.parameters:setFlag("Up"..id, core.FLAG_SOUND);
	
	indicator.parameters:addFile("Down"..id, Label .. " Cross Under Sound", "", "");
    indicator.parameters:setFlag("Down"..id, core.FLAG_SOUND);
	
	 indicator.parameters:addString("Label"..id, "Label", "", Label);

end 

local 	Number = 3;

-- Indicator instance initialization routine
local P;
local sc;
local first;
local first_cm;
local source = nil;

-- Streams block
local cmo1 = nil;
local cmo2 = nil;
local CMO = nil;

-- Alert

local Up={};
local Down={};
local Label={};
local ON={};
local Line;
local up={};
local down={};
local Size;
local Email;
local SendEmail;
local  RecurrentSound ,SoundFile  ;
local Show;
local Alert;
local PlaySound;
local Live;
local FIRST=true;

local U={};
local D={};
local OS, OB;

-- Routine
function Prepare(nameOnly)

    FIRST=true;
	Show = instance.parameters.Show;
	Live = instance.parameters.Live;	
	OS=instance.parameters.oversold;
	OB=instance.parameters.overbought;
	
    P = instance.parameters.P;
    source = instance.source;
    first_cm = source:first() + 1;
    first = first_cm + P;
    sc = 2 / (P + 1);
    local name = profile:id() .. "(" .. source:name() .. ", " .. P .. ")";
	instance:name(name);
	if nameOnly then
		return;
	end
    cmo1 = instance:addInternalStream(first_cm, 0);
    cmo2 = instance:addInternalStream(first_cm, 0);
    CMO = instance:addStream("CMO", core.Line, name, "CMO", instance.parameters.CMO_color, first);
    CMO:setPrecision(math.max(2, instance.source:getPrecision()));
    CMO:setWidth(instance.parameters.CMO_width);
    CMO:setStyle(instance.parameters.CMO_style);
	
	CMO:addLevel(OS, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color);
	CMO:addLevel(OB, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color);    
    CMO:addLevel(0, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color);    
	
	
	Initialization();
end



function  Initialization ()
     Size=instance.parameters.Size;
	 SendEmail = instance.parameters.SendEmail;
	 
	 local i;
	 for i = 1, Number , 1 do 
	  Label[i]=instance.parameters:getString("Label" .. i);
	  ON[i]=instance.parameters:getBoolean("ON" .. i);
	 end
	 
	 
	 

    if SendEmail then
        Email = instance.parameters.Email;
    else
        Email = nil;
    end
    assert(not(SendEmail) or (SendEmail and Email ~= ""), "E-mail address must be specified");
	
	
	 PlaySound = instance.parameters.PlaySound;
    if PlaySound then
    
	  for i = 1, Number , 1 do 
	  Up[i]=instance.parameters:getString("Up" .. i);
	  Down[i]=instance.parameters:getString("Down" .. i);
	  end
	
    else 
	
	  for i = 1, Number , 1 do 
       Up[i]=nil;
	  Down[i]=nil;
	  end
		
    end
    
        for i = 1, Number , 1 do 
	  assert(not(PlaySound) or (PlaySound and Up[i] ~= "") or (PlaySound and Up[i] ~= ""), "Sound file must be chosen"); 
	 assert(not(PlaySound) or (PlaySound and Down[i] ~= "") or (PlaySound and Down[i] ~= ""), "Sound file must be chosen");
	end
	 
    RecurrentSound = instance.parameters.RecurrentSound;
	
	for i = 1, Number , 1 do 
	U[i] = nil;
	D[i] = nil;
	
		if ON[i] then
		up[i] = instance:createTextOutput ("Up", "Up", "Wingdings", Size, core.H_Center, core.V_Center, instance.parameters.Up, 0);
		down[i] = instance:createTextOutput ("Dn", "Dn", "Wingdings", Size, core.H_Center, core.V_Center, instance.parameters.Down, 0);
		end
	end
		
	

	
end	


 function Calculate(period, mode)
 
   cmo1[period] = 0;
    cmo2[period] = 0;

    if period >= first_cm then
        -- calculate CMO
        local diff;
        diff = source[period] - source[period - 1];
        if diff > 0 then
            cmo1[period] = diff;
        elseif diff < 0 then
            cmo2[period] = -diff;
        end
    end

    if period < first then
	return;
	end
        local p, cmo, s1, s2;
        p = period - P + 1;
        s1 = mathex.sum(cmo1, p, period);
        s2 = mathex.sum(cmo2, p, period);
        CMO[period] = (s1 - s2) / (s1 + s2) * 100;
 
 end

-- Indicator calculation routine
function Update(period)

  Calculate(period, mode);
  
  local i;
	for i = 1, Number , 1 do
		  if ON[i] then
		 down[i]:setNoData (period); 
		 up[i]:setNoData (period);
		 end
   end	 
   
   if period < first then
return;
end
	
    Activate (1, period);
    Activate (2, period);
	Activate (3, period);
end



function Activate (id, period)

   local Shift=0;
   

   if Live~= "Live" then
	period=period-1;
	Shift=1;
	end
 
	  if id == 1  and ON[id]  then
	  
	       
			if CMO[period] > 0
			and CMO[period-1] <= 0
			then
			           
						     up[id]:set(period ,0, "\108");	
						   
			
			 D[id] = nil;
						   
							  if U[id]~=source:serial(period) 
							  and period == source:size()-1-Shift
							  and not FIRST 
							  then
							  U[id]=source:serial(period);
							  SoundAlert(Up[id]);
							  EmailAlert(  Label[id], " Cross Over", period);
							    
							        if Show then
									Pop(Label[id], " Cross Over " );  	
								    end
								 
							  end
			elseif  CMO[period] < 0
			and CMO[period-1] >= 0
            then			
			
			            			 
			               down[id]:set(period ,0, "\108");	  						   
						   
		     U[id] = nil;
		   
			                 if  D[id]~=source:serial(period)
							 and period == source:size()-1-Shift
							 and not FIRST 
							 then
							 D[id]=source:serial(period);
							 SoundAlert(Down[id]);			 
							 EmailAlert( Label[id] , " Cross Under", period);	
								 if Show then
									Pop(Label[id], " Cross Under " );  	
								 end
							 
			                  end			   
	         end
			
	  
	 
	  end
	  
	   if id == 2  and ON[id]  then
	  
	       
			if CMO[period] > OB
			and CMO[period-1] <= OB
			then
			           
						     up[id]:set(period ,OB, "\108");	
						   
			
			 D[id] = nil;
						   
							  if U[id]~=source:serial(period) 
							  and period == source:size()-1-Shift
							  and not FIRST 
							  then
							  U[id]=source:serial(period);
							  SoundAlert(Up[id]);
							  EmailAlert(  Label[id], " Cross Over", period);
							    
							        if Show then
									Pop(Label[id], " Cross Over " );  	
								    end
								 
							  end
			elseif  CMO[period] < OB
			and CMO[period-1] >= OB
            then			
			
			            			 
			               down[id]:set(period ,OB, "\108");	  						   
						   
		     U[id] = nil;
		   
			                 if  D[id]~=source:serial(period)
							 and period == source:size()-1-Shift
							 and not FIRST 
							 then
							 D[id]=source:serial(period);
							 SoundAlert(Down[id]);			 
							 EmailAlert( Label[id] , " Cross Under", period);	
								 if Show then
									Pop(Label[id], " Cross Under " );  	
								 end
							 
			                  end			   
	         end
			
	  
	 
	  end
	  
	  
	  
	   if id == 3  and ON[id]  then
	  
	       
			if CMO[period] > OS
			and CMO[period-1] <= OS
			then
			           
						     up[id]:set(period ,OS, "\108");	
						   
			
			 D[id] = nil;
						   
							  if U[id]~=source:serial(period) 
							  and period == source:size()-1-Shift
							  and not FIRST 
							  then
							  U[id]=source:serial(period);
							  SoundAlert(Up[id]);
							  EmailAlert(  Label[id], " Cross Over", period);
							    
							        if Show then
									Pop(Label[id], " Cross Over " );  	
								    end
								 
							  end
			elseif  CMO[period] < OS
			and CMO[period-1] >= OS
            then			
			
			            			 
			               down[id]:set(period ,OS, "\108");	  						   
						   
		     U[id] = nil;
		   
			                 if  D[id]~=source:serial(period)
							 and period == source:size()-1-Shift
							 and not FIRST 
							 then
							 D[id]=source:serial(period);
							 SoundAlert(Down[id]);			 
							 EmailAlert( Label[id] , " Cross Under", period);	
								 if Show then
									Pop(Label[id], " Cross Under " );  	
								 end
							 
			                  end			   
	         end
			
	  
	 
	  end
	  
		   
        if FIRST then
        FIRST=false;      
        end		

end


function AsyncOperationFinished (cookie, success, message)
end


function Pop(label , note)

   core.host:execute ("prompt", 1, label ,
   " ( " .. source:instrument()  .. " ) "  ..   label .. " : " .. note );


end

function SoundAlert(Sound)
 if not PlaySound then
 return;
 end
 
  terminal:alertSound(Sound, RecurrentSound);
end
 

function EmailAlert( label , Subject, period)

if not SendEmail then
return
end

  
    local date = source:date(period);
	local DATA = core.dateToTable (date);
	
    
   local delim = "\013\010";  
   local Note=  profile:id().. delim.. " Label : " ..label  .. delim .. " Alert : " .. Subject ;   
   local Symbol= "Instrument : " .. source:instrument() ;
   local Time =  " Date : " .. DATA.month.." / ".. DATA.day .." Time:  ".. DATA.hour  .." / ".. DATA.min .." / ".. DATA.sec; 
   
     local text = Note  .. delim ..  Symbol  .. delim .. Time;
 
 terminal:alertEmail(Email, profile:id(), text);
end