public function __construct($flashModel, $sessionModel) {
    $this->lw = new \view\LoginView();
    $this->sm = $sessionModel;
    $this->fm = $flashModel;
    try {
      if (isset($_COOKIE['Username']) && !$this->lw->isLoggingOut()) {
        self::$username = $_COOKIE['Username'];
        self::$password = $_COOKIE['Password'];
        $this->compareEnteredCredentials();
      } else {
        if ($this->lw->isLoggingIn() && !$this->sm->getIsLoggedIn()) {
          $this->setUsername();
          $this->setPassword();
          $this->compareEnteredCredentials();
          $this->storeUserCredentialsInCookie();
        } else if ($this->lw->isLoggingOut() && $this->sm->getIsLoggedIn()) {
          $this->removeUserCredentialsInCookie();
          $_SESSION['username'] = '';
          $_SESSION['isLoggedIn'] = false;
          $_SESSION['message'] = 'Bye bye!';
        }
      }
      } catch (\Exception $e) {
        $_SESSION['username'] = self::$username;
        $_SESSION['message'] = $e->getMessage();
      } finally {
        $this->lw->loginToLayoutView($this->fm, $this->sm);
        if ($this->compareEnteredCredentials() || $this->lw->isLoggingOut()) {
          header('Location: /');
          exit();
        }
      }
  }