<?php
/**
 * @package     Joomla.Plugin
 * @subpackage  System.logout
 *
 * @copyright   (C) 2010 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Plugin\CMSPlugin;

/**
 * Plugin class for logout redirect handling.
 *
 * @since  1.6
 */
class PlgSystemLogout extends CMSPlugin
{
	/**
	 * Application object.
	 *
	 * @var    JApplicationCms
	 * @since  3.7.3
	 */
	protected $app;

	/**
	 * Load the language file on instantiation.
	 *
	 * @var    boolean
	 * @since  3.1
	 */
	protected $autoloadLanguage = true;

	/**
	 * Constructor.
	 *
	 * @param   object  &$subject  The object to observe -- event dispatcher.
	 * @param   object  $config    An optional associative array of configuration settings.
	 *
	 * @since   1.6
	 */
	public function __construct(&$subject, $config)
	{
		parent::__construct($subject, $config);

		// If we are on admin don't process.
		if (!$this->app->isClient('site'))
		{
			return;
		}

		$hash  = ApplicationHelper::getHash('PlgSystemLogout');

		if ($this->app->input->cookie->getString($hash))
		{
			// Destroy the cookie.
			$this->app->input->cookie->set($hash, '', 1, $this->app->get('cookie_path', '/'), $this->app->get('cookie_domain', ''));
		}
	}

	/**
	 * Method to handle any logout logic and report back to the subject.
	 *
	 * @param   array  $user     Holds the user data.
	 * @param   array  $options  Array holding options (client, ...).
	 *
	 * @return  boolean  Always returns true.
	 *
	 * @since   1.6
	 */
	public function onUserLogout($user, $options = array())
	{
		if ($this->app->isClient('site'))
		{
			// Create the cookie.
			$this->app->input->cookie->set(
				ApplicationHelper::getHash('PlgSystemLogout'),
				true,
				time() + 86400,
				$this->app->get('cookie_path', '/'),
				$this->app->get('cookie_domain', ''),
				$this->app->isHttpsForced(),
				true
			);
		}

		return true;
	}
}
