Door Password System

function save(text,name)
  local file = fs.open(name,"w")
  file.write(text)
  file.close()
end
function load(name)
  local file = fs.open(name,"r")
  local data = file.readAll()
  file.close()
  return data
end

term.clear()
term.setCursorPos(1,2)
local ch1
local ch2

if fs.exists("pass") then
  ch1 = true
else
  print("Please enter a password for your doors:")
  print()
  p1 = read("*")
  print()
  print("Please repeat your password:")
  print()
  p2 = read("*")
  print()
  if p1 ~= p2 then
    print("Password and repeated password doesn't match.")
    sleep(3)
    os.reboot()
  else
    save(p1, "pass")
    os.reboot()
  end
end

if fs.exists("l") then
  ch2 = true
else
  print("Please tell me where are your doors. (left / right / front / back / top / bottom)")
  print()
  l = read()
  print()
  if l == "left" or l == "right" or l == "front" or l == "back" or l == "top" or l == "bottom" then
    term.clear()
    term.setCursorPos(1,2)
    save(l, "l")
    print("Thank you for setting up system. rebooting in 5 secounds.")
    sleep(5)
    os.reboot()
  else
  print()
    print("Use left / right / front / back / top / bottom!")
    sleep(3)
    os.reboot()
  end
end

if ch1 and ch2 then
  print("Please enter password to open door (or enter '*YOURPASSWORD*edit' ex. 'exampleedit' to setup doors system again):")
  print()
  input = read("*")
  if input == load("pass") then
    term.clear()
    term.setCursorPos(1,2)
    print("Correct password.")
    redstone.setOutput(load("l"), true)
    sleep(3)
    redstone.setOutput(load("l"), false)
    os.reboot()
  elseif input == load("pass") .. "edit" then
    term.clear()
    term.setCursorPos(1,2)
    print("You can setup your doors system again in 3 secounds.")
    shell.run("delete pass")
    shell.run("delete l")
    sleep(2)
    os.reboot()
  else
    term.clear()
    term.setCursorPos(1,2)
    print("Wrong password!")
    sleep(3)
    os.reboot()
  end
end