update

modules/paynow/classes/PaynowKeysGenerator.php

@@ -0,0 +1,54 @@
+<?php
+
+use Paynow\Util\ClientExternalIdCalculator;
+
+/**
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the MIT License (MIT)
+ * that is bundled with this package in the file LICENSE.md.
+ *
+ * @author mElements S.A.
+ * @copyright mElements S.A.
+ * @license   MIT License
+ */
+
+class PaynowKeysGenerator
+{
+    /**
+     * @param string $externalId
+     * @return false|string
+     */
+    public static function generateIdempotencyKey(string $externalId)
+    {
+        return substr(uniqid($externalId . '_', true), 0, 45);
+    }
+
+    /**
+     * @param $order
+     * @return mixed
+     */
+    public static function generateExternalIdByOrder($order)
+    {
+        return $order->reference;
+    }
+
+    /**
+     * @param $cart
+     * @return string
+     */
+    public static function generateExternalIdByCart($cart): string
+    {
+        return uniqid($cart->id . '_', false);
+    }
+
+    /**
+     * @param $customerId
+     * @param $module
+     * @return string
+     */
+    public static function generateBuyerExternalId($customerId, $module): string
+    {
+        return ClientExternalIdCalculator::calculate("$customerId", $module->getSignatureKey());
+    }
+}