os.pullEvent = os.pullEventRaw
local redin = "right"
local redout = "bottom"
local printerside = "left"
math.randomseed(os.time())

local printer = peripheral.wrap(printerside) -- Wrap the printer

local stopme = true

local result, n1, n2, n3, hash, ready, series, fi

if not fs.exists("series") then
	fi = fs.open("series", "w")
	fi.write(1)
	series = 1
else
	fi = fs.open("series", "w")
	series = series = fi.readLine()
end

while (true) do
	if redstone.getInput(redin) then
		ready = printer.newPage()
		fi = fs.open("series", "w")
		series = fi.readLine()
		fi.write(series+1)
		fi.flush()
		n1 = math.random(20)
		n2 = math.random(20)
		n3 = math.random(20)
		hash = (series+((n1+1)*(n2+2)*(n3+3)*541))%(n1+(n2*2)+(n3*3)+29) --10th and 100th primes
		result = n1 .. " " .. n2 .. " " .. n3
		write("Your lotto numbers are!\n" .. result .. "\n\nMake sure you grab your ticket.\n\n")
		if ready then
			printer.setPageTitle("Lotto Ticket")
			printer.setCursorPos(1,1)
			printer.write("Numbers: " .. result)
			printer.setCursorPos(1,2)
			printer.write("Series: " .. series)
			printer.setCursorPos(1,3)
			printer.write("Hash: " .. hash)
			printer.endPage()
			redstone.setOutput(redout, true)
			sleep(10)
			redstone.setOutput(redout, false)
		else
			write("Could not create a page. Is there any paper and ink in the printer?\nTry again later.")
			sleep(10)
		end
	end

	shell.run("clear")
	write("Press enter for your ticket!\nCurrent Series: " .. series .. "\n")
	result = read()
end