startup

sleep(0)

side = "left"

function save(usr, pass)
  if not fs.exists(fs.combine("users", usr)) then
    if not fs.exists("users") then
          fs.makeDir("users")
    end
    fs.makeDir(fs.combine("users", usr))
  end
  local h = fs.open(fs.combine(fs.combine("users", usr), "password"), "w")
  if h then
    h.writeLine(pass)
    h.close()
  else
    error("Couldn't open file handle!")
  end
end

while true do
  term.clear()
  term.setCursorPos(1,1)
  term.write("Input Username: ")
  username = read()
  term.setCursorPos(1,2)
  term.write("Input Password: ")
  password = read("*")
    result = check(username,password)
    if result == true then
      redstone.setOutput(side,true)
      sleep(2)
      redstone.setOutput(side,false)
    elseif result == "admin" then
      term.clear()
      term.setCursorPos(1,1)
      term.write("Input new Account username: ")
      newUser = read()
      term.setCursorPos(1,2)
      term.write("Input passowrd for account "..newUser..": ")
      newPass = read("*")
      save(newUser,newPass)
    elseif result == false then
      print("Invalid password")
      sleep(2)
    elseif result == "nousr" then
      print("No such user")
      sleep(2)
    end
end