<?php

private function changeState()
  {
    $userSession = $this->userStorage->loadUser();

    if($userSession)
    {
      $this->loginModel->setIsLoggedIn(true);
    }

    if($this->loginModel->getIsLoggedIn())
    {
      if($this->loginView->ifUserWantsToLogout())
      {
        $this->loginController->logout();
      }
    } else
    {
      if($this->registerView->ifUserWantsToRegister())
      {
        $this->signupController->register();
      } else if($this->loginView->ifUserWantsToLogin())
      {
        $this->loginModel->setIsLoggedIn($this->loginController->login());
      }
    }