Player Detected Door Opener

local player
local event
local state

function reset()
  player = ""
  state = false
end

function doorOpen(dside, dtime)
  rs.setOutput(dside, true)
  sleep(dtime)
  rs.setOutput(dside, false)
end

function wait()
  event, player = os.pullEvent("player")
  print(player)
end

function interpet()
  file = io.open("perms", "r")
  if file ~= nil then
    for line in file:lines() do
      if line == player then
        state = true
      end
    end
  else
    print("File "..file.." does not exist.")
  end
end

function run()
  if state == true then
    print("You are allowed to enter.")
    doorOpen("left", 3)
  else
    print("You are not allowed to enter.")
    sleep(1.5)
  end
end

-- Actual program
term.clear()
term.setCursorPos(1,1)
while true do
  reset()
  wait()
  interpet()
  run()
end