User_Authentication.js

class UserAuthentication {
    /**
     * Creates an instance of UserAuthentication.
     * @constructor
     * @param {string} backendService - The backend service URL.
     */
    constructor(backendService) {
        this.backendService = backendService;
    }

    /**
   * Logs in a user.
   * @param {string} username - The username of the user.
   * @param {string} password - The password of the user.
   */
    login(username, password) {
        // Implementation for user login
    }
    
    /**
       * Registers a new user.
       * @param {string} username - The username of the new user.
       * @param {string} email - The email address of the new user.
       * @param {string} password - The password of the new user.
       */
    register(username, email, password) {
        // Implementation for user registration
    }
    
    /**
       * Allows the user to continue as a guest.
       */
    continueAsGuest() {
        // Implementation for continuing as a guest
    }
}