class Admin{
  /**
   * Authorized actions
   * @since 1.0
   **/
  protected $actions = array("ads","users","media","blog","pages","settings","themes","editor","languages","search","server", "categories","stats","activities", "tools", "comments", "reports","menu");
  /**
   * Config + DB
   * @since 1.0
   **/
  protected $config;
  protected $db;

  /**
   * Admin Info + URL
   * @since 1.0
   **/
  protected $user;
  protected $url;
  /**
   * Reserved Variable
   * @since 1.0
   **/
  protected $page;
  protected $action;
  protected $do;
  protected $id;
  /**
   * Admin Limit/Page
   * @since 1.0
   **/
  protected $limit=24;
  /**
   * Valid Media types
   * @since 1.0
   **/
  protected $formats = NULL;
  /**
   * Construct Admin
   * @since 1.0
   **/
  public function __construct($config,$db){
    $this->config=$config;
    $this->db=$db;
    $this->url="{$this->config["url"]}/admin";
    $this->page=(isset($_GET["page"]) && is_numeric($_GET["page"]) && $_GET["page"]!="0") ? Main::clean($_GET["page"],3,TRUE):"1";
    $this->check();
  }
  /**
   * Free Memory (don't need it but do it anyway)
   * @since 1.0
   **/
  public function __destruct(){
    unset($this->db, $this->user, $this->config);
  }
  /**
   * Check if user is logged and has admin privileges!
   * @since 1.0
   **/
  public function check(){
    if($info=Main::user()){
      if($user=$this->db->get("user",array("id"=>"?","auth_key"=>"?"),array("limit"=>1),array($info[0],$info[1]))){
        if(!$user->admin) return Main::redirect("404");
        $this->logged=TRUE;
        $this->user=$user;
        $user=NULL;
        // Unset sensitive information
        unset($this->user->password);
        unset($this->user->auth_key);
        return TRUE;
      }
    }
   return Main::redirect("404");
  }
  /**
   * Run Admin Panel
   * @since 1.0
   **/
  public function run(){
    if(isset($_GET["a"]) && !empty($_GET["a"])){
      $var=explode("/",$_GET["a"]);
      if(in_array($var[0],$this->actions) && method_exists("Admin", $var[0])){
        $this->action=Main::clean($var[0],3,TRUE);
        if(isset($var[1]) && !empty($var[1])) $this->do=Main::clean($var[1],3,TRUE);
        if(isset($var[2]) && !empty($var[2])) $this->id=Main::clean($var[2],3,TRUE);
        return $this->{$var[0]}();
      }
      return Main::redirect("admin",array("danger","Oups! The page you are looking for doesn't exist."));
    }else{
      return $this->home();
    }
  }