triesRemaining = 3

function getUsers()
	rednet.broadcast("getUser", "getUser")
	id, msg, prot = rednet.receive()
	if prot == "getUser" then
		return msg
	end
end

function updateScreen()
	os.pullEvent("char")
	term.clear()
	term.setCursorPos(1,1)
	uname = getUsers()
	term.clear()
	term.setCursorPos(1,1)
	print("Welcome, " .. uname .."!")
	term.setCursorPos(1,2)
	os.queueEvent("key", 15)
end

function confirmPass()
	inp = read("*")
	rednet.broadcast(inp, "pass")
	while true do
		id, msg, prot = rednet.receive()
		if prot == "pass" then
			if msg == "granted" then
				return true
			end
			if msg == "denied" then
				return false
			end
		end
	end
end

function getPassword()
	pass = confirmPass()
	if pass == true then
		print("Access granted.")
		triesRemaining = 3
		redstone.setBundledOutput("bottom", colors.red)
		sleep(5)
		redstone.setBundledOutput("bottom", 0)
	else
		triesRemaining = triesRemaining - 1
		print("Incorrect. " .. triesRemaining .. " tries remaining")
		sleep(3)
		if triesRemaining == 0 then
			print("Prepare for your death")
			sleep(0.25)
			redstone.setBundledOutput("bottom", colors.green)
			sleep(1)
			redstone.setBundledOutput("bottom", 0)
			triesRemaining = 3
		end
	end
end

term.clear()
term.setCursorPos(1,1)
rednet.open("back")
while true do
	parallel.waitForAll(updateScreen, getPassword)
	term.clear()
	term.setCursorPos(1,1)
end