<?php

/*
 *  copied from wp 4.8.1
 **/

/**update
 * Upgrader API: WP_Ajax_Upgrader_Skin class
 *
 * @package WordPress
 * @subpackage Upgrader
 * @since 4.6.0
 */

/**
 * Upgrader Skin for Ajax WordPress upgrades.
 *
 * This skin is designed to be used for Ajax updates.
 *
 * @since 4.6.0
 *
 * @see Automatic_Upgrader_Skin
 */

namespace Tenweb_Manager {

  include_once ABSPATH . '/wp-admin/includes/class-wp-upgrader-skins.php';

  class WP_Ajax_Upgrader_Skin extends \Automatic_Upgrader_Skin {

    /**
     * Holds the WP_Error object.
     *
     * @since 4.6.0
     * @access protected
     * @var null|WP_Error
     */
    protected $errors = null;

    /**
     * Constructor.
     *
     * @since 4.6.0
     * @access public
     *
     * @param array $args Options for the upgrader, see WP_Upgrader_Skin::__construct().
     */
    public function __construct($args = array()){
      parent::__construct($args);

      $this->errors = new \WP_Error();
    }

    /**
     * Retrieves the list of errors.
     *
     * @since 4.6.0
     * @access public
     *
     * @return WP_Error Errors during an upgrade.
     */
    public function get_errors(){
      return $this->errors;
    }

    /**
     * Retrieves a string for error messages.
     *
     * @since 4.6.0
     * @access public
     *
     * @return string Error messages during an upgrade.
     */
    public function get_error_messages(){
      $messages = array();

      foreach($this->errors->get_error_codes() as $error_code) {
        if($this->errors->get_error_data($error_code) && is_string($this->errors->get_error_data($error_code))) {
          $messages[] = $this->errors->get_error_message($error_code) . ' ' . esc_html(strip_tags($this->errors->get_error_data($error_code)));
        } else {
          $messages[] = $this->errors->get_error_message($error_code);
        }
      }

      return implode(', ', $messages);
    }

    /**
     * Stores a log entry for an error.
     *
     * @since 4.6.0
     * @access public
     *
     * @param string|WP_Error $errors Errors.
     */
    public function error($errors){
      if(is_string($errors)) {
        $string = $errors;
        if(!empty($this->upgrader->strings[$string])) {
          $string = $this->upgrader->strings[$string];
        }

        if(false !== strpos($string, '%')) {
          $args = func_get_args();
          $args = array_splice($args, 1);
          if(!empty($args)) {
            $string = vsprintf($string, $args);
          }
        }

        // Count existing errors to generate an unique error code.
        $errors_count = count($errors->get_error_codes());
        $this->errors->add('unknown_upgrade_error_' . $errors_count + 1, $string);
      } elseif(is_wp_error($errors)) {
        foreach($errors->get_error_codes() as $error_code) {
          $this->errors->add($error_code, $errors->get_error_message($error_code), $errors->get_error_data($error_code));
        }
      }

      $args = func_get_args();
      call_user_func_array(array($this, 'parent::error'), $args);
    }

    /**
     * Stores a log entry.
     *
     * @since 4.6.0
     * @access public
     *
     * @param string|array|WP_Error $data Log entry data.
     */
    public function feedback($data){
      if(is_wp_error($data)) {
        foreach($data->get_error_codes() as $error_code) {
          $this->errors->add($error_code, $data->get_error_message($error_code), $data->get_error_data($error_code));
        }
      }

      $args = func_get_args();
      call_user_func_array(array($this, 'parent::feedback'), $args);
    }
  }
}