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Current path: home/webdevt/prestashop17/src/Adapter/

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?? Editing: LegacyHookSubscriber.php

<?php
/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */

namespace PrestaShop\PrestaShop\Adapter;

use Context;
use Hook;
use PrestaShopBundle\Service\Hook\HookEvent;
use PrestaShopBundle\Service\Hook\RenderingHookEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * The subscriber for HookDispatcher that triggers legacy Hooks.
 *
 * This subscriber is registered into the HookDispatcher service via services.yml.
 * The legacy hooks are registered one by one in the dispatcher, but each corresponding
 * function is a magic method catched by __call().
 * This ensure the listeners' count is real.
 */
class LegacyHookSubscriber implements EventSubscriberInterface
{
    /**
     * Returns an array of event names this subscriber wants to listen to.
     *
     * The array keys are event names and the value are a function name
     * that will be solved by magic __call(). The function contains data to extract: hookId, moduleId
     *
     * TODO: add cache layer on $listeners
     *
     * @return array The listeners array
     */
    public static function getSubscribedEvents()
    {
        $listeners = [];

// Hack Symfony cache clear : if context not mounted, bypass legacy call
        $legacyContext = Context::getContext();
        if (!$legacyContext || empty($legacyContext->shop) || empty($legacyContext->employee)) {
            return $listeners;
        }

$hooks = Hook::getHooks();

if (is_array($hooks)) {
            foreach ($hooks as $hook) {
                $name = strtolower($hook['name']);
                $id = $hook['id_hook'];

$moduleListeners = [];
                $modules = [];
                // Symfony cache clear bug fix : call bqSQL alias function
                if (function_exists('bqSQL')) {
                    $modules = Hook::getHookModuleExecList($name);
                }

if (is_array($modules)) {
                    foreach ($modules as $order => $module) {
                        $moduleId = $module['id_module'];
                        $functionName = 'call_' . $id . '_' . $moduleId;
                        $moduleListeners[] = [$functionName, 2000 - $order];
                    }
                } else {
                    $moduleListeners[] = ['call_' . $id . '_0', 2000];
                }

$listeners[$name] = $moduleListeners;
            }
        }

return $listeners;
    }

/**
     * This will handle magic methods registered as listeners.
     *
     * These methods are built with the following syntax:
     * "call_<hookID>_<moduleID>(HookEvent $event, $hookName)"
     *
     * @param string $name The method called
     * @param array $args The HookEvent, and then the hook name (eventName)
     *
     * @throws \BadMethodCallException
     */
    public function __call($name, $args)
    {
        if (strpos($name, 'call_') !== 0) {
            throw new \BadMethodCallException('The call to \'' . $name . '\' is not recognized.');
        }

$ids = explode('_', $name);
        array_shift($ids); // remove 'call'

if (count($ids) !== 2) {
            throw new \BadMethodCallException('The call to \'' . $name . '\' is not recognized.');
        }

$moduleId = (int) $ids[1];
        list($event, $hookName) = $args;

$content = Hook::exec($hookName, $event->getHookParameters(), $moduleId, ($event instanceof RenderingHookEvent));

if (
            $event instanceof RenderingHookEvent
            && 0 !== $moduleId
            && !empty($content)
        ) {
            $event->setContent([array_values($content)[0]], array_keys($content)[0]);
        }
    }
}

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