<?php
  /**
   * PHP OpenCloud library
   *
   * @copyright 2014 Rackspace Hosting, Inc. See LICENSE for information.
   * @license   https://www.apache.org/licenses/LICENSE-2.0
   * @author    Jamie Hannaford <jamie.hannaford@rackspace.com>
   */
  
  namespace OpenCloud\Identity\Resource;
  
  use OpenCloud\Common\PersistentObject;
  
  /**
   * Token class for token functionality.
   *
   * A token is an opaque string that represents an authorization to access cloud resources. Tokens may be revoked at any
   * time and are valid for a finite duration.
   *
   * @package OpenCloud\Identity\Resource
   */
  class Token extends PersistentObject
  {
      /** @var string The token ID */
      private $id;
  
      /** @var string Timestamp of when this token will expire */
      private $expires;
  
      protected static $url_resource = 'tokens';
  
      /**
       * @param $id Sets the ID
       */
      public function setId($id)
      {
          $this->id = $id;
      }
  
      /**
       * @return string Returns the ID
       */
      public function getId()
      {
          return $this->id;
      }
  
      /**
       * @param $expires Set the expiry timestamp
       */
      public function setExpires($expires)
      {
          $this->expires = $expires;
      }
  
      /**
       * @return string Get the expiry timestamp
       */
      public function getExpires()
      {
          return $this->expires;
      }
  
      /**
       * @return bool Check whether this token has expired (i.e. still valid or not)
       */
      public function hasExpired()
      {
          return time() >= strtotime($this->expires);
      }
  
  }