<?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)
 */
function add_module_to_hook($module_name, $hook_name)
{
    $res = true;

    $id_module = Db::getInstance()->getValue(
        '
	SELECT `id_module` FROM `' . _DB_PREFIX_ . 'module`
	WHERE `name` = "' . $module_name . '"'
    );

    if ((int) $id_module > 0) {
        $id_hook = Db::getInstance()->getValue('SELECT `id_hook` FROM `' . _DB_PREFIX_ . 'hook` WHERE `name` = "' . $hook_name . '"');
        if (!$id_hook) {
            if (!Db::getInstance()->execute('
			INSERT IGNORE INTO `' . _DB_PREFIX_ . 'hook` (`name`, `title`)
			VALUES ("' . pSQL($hook_name) . '", "' . pSQL($hook_name) . '")')) {
                $res = false;
            } else {
                $id_hook = Db::getInstance()->Insert_ID();
            }
        }

        if ((int) $id_hook > 0) {
            if (!Db::getInstance()->execute('
			INSERT IGNORE INTO `' . _DB_PREFIX_ . 'hook_module` (`id_module`, `id_hook`, `position`)
			VALUES (
			' . (int) $id_module . ',
			' . (int) $id_hook . ',
			(SELECT IFNULL(
				(SELECT max_position from (SELECT MAX(position)+1 as max_position  FROM `' . _DB_PREFIX_ . 'hook_module`  WHERE `id_hook` = ' . (int) $id_hook . ') AS max_position), 1))
			)')) {
                $res = false;
            }
        }
    }

    return $res;
}