Merge pull request magento#1347 from DaniloEmpire/issue-717

Fix for issue magento#717

app/code/Magento/InventorySales/Model/IsProductSalableCondition/BackOrderNotifyCustomerCondition.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\InventorySales\Model\IsProductSalableCondition;
+
+use Magento\InventoryConfigurationApi\Api\Data\StockItemConfigurationInterface;
+use Magento\InventoryConfigurationApi\Api\GetStockItemConfigurationInterface;
+use Magento\InventorySalesApi\Api\Data\ProductSalabilityErrorInterfaceFactory;
+use Magento\InventorySalesApi\Api\Data\ProductSalableResultInterface;
+use Magento\InventorySalesApi\Api\Data\ProductSalableResultInterfaceFactory;
+use Magento\InventorySalesApi\Api\IsProductSalableForRequestedQtyInterface;
+use Magento\InventorySalesApi\Model\GetStockItemDataInterface;
+
+/**
+ * @inheritdoc
+ */
+class BackOrderNotifyCustomerCondition implements IsProductSalableForRequestedQtyInterface
+{
+    /**
+     * @var GetStockItemConfigurationInterface
+     */
+    private $getStockItemConfiguration;
+
+    /**
+     * @var GetStockItemDataInterface
+     */
+    private $getStockItemData;
+
+    /**
+     * @var ProductSalableResultInterfaceFactory
+     */
+    private $productSalableResultFactory;
+
+    /**
+     * @var ProductSalabilityErrorInterfaceFactory
+     */
+    private $productSalabilityErrorFactory;
+
+    /**
+     * @param GetStockItemConfigurationInterface $getStockItemConfiguration
+     */
+    public function __construct(
+        GetStockItemConfigurationInterface $getStockItemConfiguration,
+        GetStockItemDataInterface $getStockItemData,
+        ProductSalableResultInterfaceFactory $productSalableResultFactory,
+        ProductSalabilityErrorInterfaceFactory $productSalabilityErrorFactory
+    ) {
+        $this->getStockItemConfiguration = $getStockItemConfiguration;
+        $this->getStockItemData = $getStockItemData;
+        $this->productSalableResultFactory = $productSalableResultFactory;
+        $this->productSalabilityErrorFactory = $productSalabilityErrorFactory;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function execute(string $sku, int $stockId, float $requestedQty): ProductSalableResultInterface
+    {
+        $stockItemConfiguration = $this->getStockItemConfiguration->execute($sku, $stockId);
+        if (null === $stockItemConfiguration) {
+            $this->productSalableResultFactory->create(['errors' => []]);
+        }
+
+        if ($stockItemConfiguration->getBackorders() === StockItemConfigurationInterface::BACKORDERS_YES_NOTIFY) {
+            $stockItemData = $this->getStockItemData->execute($sku, $stockId);
+            if (null === $stockItemData) {
+                $this->productSalableResultFactory->create(['errors' => []]);
+            }
+
+            $backOrderQty = $requestedQty - $stockItemData[GetStockItemDataInterface::QUANTITY];
+            if ($backOrderQty > 0) {
+                $errors = [
+                    $this->productSalabilityErrorFactory->create([
+                            'code' => 'back_order-not-enough',
+                            'message' => __(
+                                'We don\'t have as many quantity as you requested, '
+                                . 'but we\'ll back order the remaining %1.',
+                                $backOrderQty * 1
+                            )])
+                ];
+                return $this->productSalableResultFactory->create(['errors' => $errors]);
+            }
+        }
+
+        return $this->productSalableResultFactory->create(['errors' => []]);
+    }
+}

app/code/Magento/InventorySales/Plugin/StockState/CheckQuoteItemQtyPlugin.php

@@ -14,6 +14,7 @@
 use Magento\Framework\Exception\NoSuchEntityException;
 use Magento\Framework\Locale\FormatInterface;
 use Magento\InventoryCatalogApi\Model\GetSkusByProductIdsInterface;
+use Magento\InventorySales\Model\IsProductSalableCondition\BackOrderNotifyCustomerCondition;
 use Magento\InventorySales\Model\IsProductSalableForRequestedQtyCondition\ProductSalabilityError;
 use Magento\InventorySalesApi\Api\Data\SalesChannelInterface;
 use Magento\InventorySalesApi\Api\IsProductSalableForRequestedQtyInterface;
@@ -52,28 +53,36 @@ class CheckQuoteItemQtyPlugin
      */
     private $storeManager;
 
+    /**
+     * @var BackOrderNotifyCustomerCondition
+     */
+    private $backOrderNotifyCustomerCondition;
+
     /**
      * @param ObjectFactory $objectFactory
      * @param FormatInterface $format
      * @param IsProductSalableForRequestedQtyInterface $isProductSalableForRequestedQty
      * @param GetSkusByProductIdsInterface $getSkusByProductIds
      * @param StockResolverInterface $stockResolver
      * @param StoreManagerInterface $storeManager
+     * @param BackOrderNotifyCustomerCondition $backOrderNotifyCustomerCondition
      */
     public function __construct(
         ObjectFactory $objectFactory,
         FormatInterface $format,
         IsProductSalableForRequestedQtyInterface $isProductSalableForRequestedQty,
         GetSkusByProductIdsInterface $getSkusByProductIds,
         StockResolverInterface $stockResolver,
-        StoreManagerInterface $storeManager
+        StoreManagerInterface $storeManager,
+        BackOrderNotifyCustomerCondition $backOrderNotifyCustomerCondition
     ) {
         $this->objectFactory = $objectFactory;
         $this->format = $format;
         $this->isProductSalableForRequestedQty = $isProductSalableForRequestedQty;
         $this->getSkusByProductIds = $getSkusByProductIds;
         $this->stockResolver = $stockResolver;
         $this->storeManager = $storeManager;
+        $this->backOrderNotifyCustomerCondition = $backOrderNotifyCustomerCondition;
     }
 
     /**
@@ -121,6 +130,14 @@ public function aroundCheckQuoteItemQty(
             }
         }
 
+        $productSalableResult = $this->backOrderNotifyCustomerCondition->execute($productSku, (int)$stockId, $qty);
+        if ($productSalableResult->getErrors()) {
+            /** @var ProductSalabilityError $error */
+            foreach ($productSalableResult->getErrors() as $error) {
+                $result->setMessage($error->getMessage());
+            }
+        }
+
         return $result;
     }