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classes/stock/StockManagerFactory.php

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+<?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)
+ */
+
+/*
+ * StockManagerFactory : factory of stock manager
+ * @since 1.5.0
+ */
+class StockManagerFactoryCore
+{
+    /**
+     * @var : instance of the current StockManager
+     */
+    protected static $stock_manager;
+
+    /**
+     * Returns a StockManager.
+     *
+     * @return StockManagerInterface
+     */
+    public static function getManager()
+    {
+        if (!isset(StockManagerFactory::$stock_manager)) {
+            $stock_manager = StockManagerFactory::execHookStockManagerFactory();
+            if (!($stock_manager instanceof StockManagerInterface)) {
+                $stock_manager = new StockManager();
+            }
+            StockManagerFactory::$stock_manager = $stock_manager;
+        }
+
+        return StockManagerFactory::$stock_manager;
+    }
+
+    /**
+     *  Looks for a StockManager in the modules list.
+     *
+     *  @return StockManagerInterface
+     */
+    public static function execHookStockManagerFactory()
+    {
+        $modules_infos = Hook::getModulesFromHook(Hook::getIdByName('stockManager'));
+        $stock_manager = false;
+
+        foreach ($modules_infos as $module_infos) {
+            $module_instance = Module::getInstanceByName($module_infos['name']);
+
+            if (is_callable([$module_instance, 'hookStockManager'])) {
+                $stock_manager = $module_instance->hookStockManager();
+            }
+
+            if ($stock_manager) {
+                break;
+            }
+        }
+
+        return $stock_manager;
+    }
+}