-- When will this be over?
-- Simple extension which displays the time when the current media will be finished playing

-- Extension description
function descriptor()
    return { title = "Finish Time" ;
             version = "1.0" ;
             author = "Rajesh Verma" ;
             url = 'http://www.rawdust.com/';
             shortdesc = "Displays the time when the current media will be finished playing";
             description = "Displays the time when the current media will be finished playing" ;
             capabilities = { }
		    }
end

-- Activation hook
function activate()
	-- get elapsed time in seconds
	local input = vlc.object.input()
	local current = vlc.var.get(input, "time")
	-- get duration in seconds
	local duration = vlc.input.item():duration()
	-- calculate hour, minute, second values for remaining time
	local remaining = duration - current

	-- get system seconds, minutes, hours
	local systemHour = os.date("%I")
	local systemMinute = os.date("%M")
	local systemSecond = os.date("%S")

	-- show the result on the on-screen display (OSD)
	local outputString = " " 
	

	for i=0,10 do
		remainingi = remaining/(1+i/10)

		local remainingHour = math.floor(remainingi / 3600)
		local remainingMinute = math.floor((remainingi % 3600) / 60)
		local remainingSecond = math.floor(remainingi % 60)

		-- add the two together, carrying as needed
		local endingSecond = math.floor((systemSecond + remainingSecond) % 60)
		local endingMinute = math.floor(((systemSecond + remainingSecond) / 60 + (systemMinute + remainingMinute)) % 60)
		local endingHour = math.floor((((systemSecond + remainingSecond) / 60 + (systemMinute + remainingMinute)) / 60 + systemHour + remainingHour) % 12)

		if (endingHour==0) then
			endingHour=12
		end


		--saved
		saved= remaining - remainingi
		local savedHour = math.floor(saved / 3600)
		local savedMinute = math.floor((saved % 3600) / 60)
		local savedSecond = math.floor(saved % 60)

		

		outputString = outputString..string.format("%2d:%02d:%02d %d:%02d:%02d (%d:%02d:%02d) %.1fx".."\n", endingHour, endingMinute, endingSecond,remainingHour,remainingMinute,remainingSecond,savedHour,savedMinute,savedSecond,1+i/10)


		if i==4 or i==5 then
			outputString = outputString .."\n"	

		end

	end

	vlc.osd.message(outputString,channel1,top,10000000)
	
	-- below undefined function will cause extension to die.
	-- (and thus automatically uncheck it from view menu)
	-- I'm using this UGLY hack because the obvious call to deactivate() doesn't work
	fail()
end

-- Deactivation hook
function deactivate()
    
end