[Catalog] Unmanaged stock handled in Multi source inventory (#485)

* Unmanaged stock handled in MSI

* comment updated

* unmanaged inventory fixed for inventory class

* Catalog inventory module replaced with invetory sales module

* undeclared dependency added

Author: singhramanpreett

app/code/Meta/Catalog/Model/Product/Feed/Builder/Inventory.php

@@ -102,8 +102,14 @@ public function initInventoryForProduct(Product $product): Inventory
      */
     public function getAvailability(): string
     {
+        $inventory = $this->getInventory();
+
+        // unmanaged stock is always available
+        if ($inventory === self::UNMANAGED_STOCK_QTY) {
+            return self::STATUS_IN_STOCK;
+        }
         return $this->productStock && $this->productStock->getIsInStock()
-        && ($this->getInventory() > 0)
+        && ($inventory > 0)
             ? self::STATUS_IN_STOCK : self::STATUS_OUT_OF_STOCK;
     }
 
@@ -119,7 +125,7 @@ public function getInventory(): int
         }
 
         if (!$this->productStock->getManageStock()) {
-            return self::UNMANAGED_STOCK_QTY; // fake quantity to make product available if Manage Stock is off
+            return self::UNMANAGED_STOCK_QTY;
         }
 
         $outOfStockThreshold = $this->systemConfig->getOutOfStockThreshold($this->product->getStoreId());

app/code/Meta/Catalog/Model/Product/Feed/Builder/InventoryInterface.php

@@ -27,7 +27,8 @@ interface InventoryInterface
 
     public const STATUS_OUT_OF_STOCK = 'out of stock';
 
-    public const UNMANAGED_STOCK_QTY = 9999;
+    // -1 is unmanaged inventory in Meta catalog
+    public const UNMANAGED_STOCK_QTY = -1;
 
     /**
      * Init inventory for product

app/code/Meta/Catalog/Model/Product/Feed/Builder/MultiSourceInventory.php

@@ -20,11 +20,12 @@
 
 namespace Meta\Catalog\Model\Product\Feed\Builder;
 
-use Meta\BusinessExtension\Model\System\Config as SystemConfig;
 use Magento\Catalog\Model\Product;
+use Magento\InventorySalesAdminUi\Model\GetIsManageStockForProduct;
 use Magento\InventorySalesApi\Api\GetProductSalableQtyInterface;
 use Magento\InventorySalesApi\Api\IsProductSalableInterface;
 use Magento\InventorySalesApi\Model\StockByWebsiteIdResolverInterface;
+use Meta\BusinessExtension\Model\System\Config as SystemConfig;
 
 class MultiSourceInventory implements InventoryInterface
 {
@@ -63,22 +64,30 @@ class MultiSourceInventory implements InventoryInterface
      */
     private $stockQty;
 
+    /**
+     * @var GetIsManageStockForProduct
+     */
+    private GetIsManageStockForProduct $getIsManageStockForProduct;
+
     /**
      * @param IsProductSalableInterface $isProductSalableInterface
      * @param GetProductSalableQtyInterface $getProductSalableQtyInterface
      * @param SystemConfig $systemConfig
      * @param StockByWebsiteIdResolverInterface $stockByWebsiteIdResolver
+     * @param GetIsManageStockForProduct $getIsManageStockForProduct
      */
     public function __construct(
         IsProductSalableInterface $isProductSalableInterface,
         GetProductSalableQtyInterface $getProductSalableQtyInterface,
         SystemConfig $systemConfig,
-        StockByWebsiteIdResolverInterface $stockByWebsiteIdResolver
+        StockByWebsiteIdResolverInterface $stockByWebsiteIdResolver,
+        GetIsManageStockForProduct $getIsManageStockForProduct
     ) {
         $this->isProductSalableInterface = $isProductSalableInterface;
         $this->getProductSalableQtyInterface = $getProductSalableQtyInterface;
         $this->systemConfig = $systemConfig;
         $this->stockByWebsiteIdResolver = $stockByWebsiteIdResolver;
+        $this->getIsManageStockForProduct = $getIsManageStockForProduct;
     }
 
     /**
@@ -119,6 +128,21 @@ private function getStockQty(Product $product, int $stockId)
         }
     }
 
+    /**
+     * Checks if product is having managed stock
+     *
+     * @return bool
+     */
+    public function isStockManagedForProduct(): bool
+    {
+        try {
+            $websiteCode = $this->product->getStore()->getWebsite()->getCode();
+            return $this->getIsManageStockForProduct->execute($this->product->getSku(), $websiteCode);
+        } catch (\Throwable $e) {
+            return false;
+        }
+    }
+
     /**
      * Initiate inventory for the product
      *
@@ -142,6 +166,10 @@ public function initInventoryForProduct(Product $product): MultiSourceInventory
      */
     public function getAvailability(): string
     {
+        // unmanaged stock is always available
+        if (!$this->isStockManagedForProduct()) {
+            return self::STATUS_IN_STOCK;
+        }
         return $this->getInventory() && $this->stockStatus ? self::STATUS_IN_STOCK : self::STATUS_OUT_OF_STOCK;
     }
 
@@ -155,6 +183,9 @@ public function getInventory(): int
         if (!$this->product) {
             return 0;
         }
+        if (!$this->isStockManagedForProduct()) {
+            return self::UNMANAGED_STOCK_QTY;
+        }
         $outOfStockThreshold = $this->systemConfig->getOutOfStockThreshold($this->product->getStoreId());
         $quantityAvailableForCatalog = (int) $this->stockQty - $outOfStockThreshold;
         return $quantityAvailableForCatalog > 0 ? $quantityAvailableForCatalog : 0;

app/code/Meta/Catalog/composer.json

@@ -5,6 +5,7 @@
   "require": {
     "php": "~8.1.0||~8.2.0",
     "magento/framework": "*",
+    "magento/module-inventory-sales-admin-ui": "*",
     "magento/module-inventory-sales-api": "*",
     "magento/module-backend": "*",
     "magento/module-catalog": "*",