CC password door lock

local pullEvent = os.pullEvent
os.pullEvent = os.pullEventRaw
--to restore keyboard commands--
--os.pullEvent = pullEvent--

local pass = "bacon"
local admin = "waffleiron"
local state = 0
local errornum = 0

while true do

while state == 0 do
  term.clear()
  term.setCursorPos(1,1)
  print("Please enter password")
  input = read("x")

    if input == pass then
      redstone.setOutput("left", true)
      sleep(5)
      redstone.setOutput("left", false)
    end

    if input == admin
      print("Key commands enabled")
      os.pullEvent = pullEvent
    end

    if input ~= pass then
      state = 1
      errornum = errornum + 1
    break
   end
end

while state == 1 do
  if errornum ~= 3 then
    term.clear()
    term.setCursorPos(1,1)
    print("Wrong password!")

      if errornum == 1 then
        print("Lockout in 2 tries!")

      else
        print("Lockout in 1 try!")
      end

    input = read("x")

      if input ~= pass then
        errornum = errornum + 1
      end

      if input == admin
        print("Key commands enabled")
        os.pullEvent = pullEvent
      end

      if input == pass then
        redstone.setOutput("left", true)
        sleep(5)
        redstone.setOutput("left", false)
        state = 0
        errornum = 0
      break
     end
  elseif errornum == 3 then
    term.clear()
    term.setCursorPos(1,1)
    print("Terminal lockout!")
    print("Waiting for reset...")
    state = 2
  break
 end
end

while state == 2 do
  reset = rs.getInput("back")

   if reset == true then
      state = 0
      errornum = 0

   else
     sleep(1)
   end
  end
end