<?php
/**
* @package VikBooking
* @subpackage core
* @author E4J s.r.l.
* @copyright Copyright (C) 2025 E4J s.r.l. All Rights Reserved.
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
* @link https://vikwp.com
*/
// No direct access
defined('ABSPATH') or die('No script kiddies please!');
/**
* Interface used to look for any matching changes.
*
* @since 1.18 (J) - 1.8 (WP)
*/
interface VBOHistoryDetector
{
/**
* Returns the event identifier.
*
* @return string
*/
public function getEvent();
/**
* Checks whether the observed target as changed.
*
* @param object $prev The item details before the changes.
* @param object $curr The item details after the changes.
*
* @return bool
*/
public function hasChanged(object $prev, object $curr);
/**
* Returns a human-readable string describing the changes made.
*
* @return string
*/
public function describe();
/**
* Returns an icon to display for the event.
*
* @return string
*/
public function getIcon();
}