Release version 3.2.8

CHANGELOG.md

@@ -3,6 +3,10 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.1.0/) and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [3.2.8](https://github.com/unzerdev/magento2/compare/3.2.7..3.2.8)
+### Fixed
+* Rounding issue in case of total amount mismatch
+
 ## [3.2.7](https://github.com/unzerdev/magento2/compare/3.2.6..3.2.7)
 ### Added
 * Client's IP address in every request sent to Unzer API

Helper/Order.php

@@ -1,4 +1,5 @@
 <?php
+
 declare(strict_types=1);
 
 namespace Unzer\PAPI\Helper;
@@ -125,11 +126,12 @@ public function createBasketForOrder(OrderModel $order): Basket
     {
         $basket = $this->createBasket($order);
         $vatRate = 0;
+        $basketTotal = 0;
 
         if ($order->getShippingAmount() > 0) {
-            $basket->addBasketItem(
-                $this->createShippingItem($order)
-            );
+            $shippingItem = $this->createShippingItem($order);
+            $basket->addBasketItem($shippingItem);
+            $basketTotal += $shippingItem->getAmountPerUnitGross();
         }
 
         foreach ($order->getAllVisibleItems() as $orderItem) {
@@ -141,18 +143,28 @@ public function createBasketForOrder(OrderModel $order): Basket
                 continue;
             }
 
-            $basket->addBasketItem(
-                $this->createBasketItem($orderItem)
-            );
+            $item = $this->createBasketItem($orderItem);
+            $basket->addBasketItem($item);
 
-            if($orderItem->getTaxPercent() !== null){
+            if ($orderItem->getTaxPercent() !== null) {
                 $vatRate = (float)$orderItem->getTaxPercent();
             }
+
+            $basketTotal += $item->getAmountPerUnitGross() * $item->getQuantity();
         }
 
         if (abs($order->getBaseDiscountAmount()) > 0) {
+            $vaucherItem = $this->createVoucherItem($order, $vatRate);
+            $basket->addBasketItem($vaucherItem);
+            $basketTotal -= abs($vaucherItem->getAmountDiscountPerUnitGross());
+        }
+
+        $totalOrder = $order->getBaseGrandTotal();
+        $difference = round($totalOrder - $basketTotal, 2);
+
+        if (abs($difference) > 0) {
             $basket->addBasketItem(
-                $this->createVoucherItem($order, $vatRate)
+                $this->createRoundingItem($difference)
             );
         }
 
@@ -210,6 +222,25 @@ protected function createBasketItem(Item $orderItem): BasketItem
         return $basketItem;
     }
 
+
+    private function createRoundingItem(float $amount): BasketItem
+    {
+        $item = new BasketItem();
+        $item->setType(BasketItemTypes::VOUCHER);
+        $item->setTitle('Rounding Adjustment');
+        $item->setQuantity(1);
+        $item->setVat(0.0);
+
+        if ($amount < 0) {
+            $item->setAmountDiscountPerUnitGross(abs($amount));
+        }
+        if ($amount > 0) {
+            $item->setAmountPerUnitGross($amount);
+        }
+
+        return $item;
+    }
+
     /**
      * Create Voucher Item
      *

composer.json

@@ -2,7 +2,7 @@
     "name": "unzerdev/magento2",
     "description": "This extension for Magento 2 provides a direct integration of the Unzer payment types to your Magento 2 shop via the Unzer Payment API (PAPI).",
     "type": "magento2-module",
-    "version": "3.2.7",
+    "version": "3.2.8",
     "license": "Apache-2.0",
     "require": {
         "php": "~7.4.0|~8.1.0|~8.2.0|~8.3.0",

etc/module.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
-    <module name="Unzer_PAPI" setup_version="3.2.7">
+    <module name="Unzer_PAPI" setup_version="3.2.8">
         <sequence>
             <module name="Magento_Checkout"/>
             <module name="Magento_Config" />