even more refactoring

cart-grain.go

@@ -113,12 +113,16 @@ func getItemData(sku string, qty int, country string) (*messages.AddItem, error)
 	}
 
 	stock := InStock
-	/*item.t
-	if item.StockLevel == "0" || item.StockLevel == "" {
+	item.HasStock()
+	stockValue, ok := item.GetNumberFieldValue(3)
+	if !ok || stockValue == 0 {
 		stock = OutOfStock
-	} else if item.StockLevel == "5+" {
-		stock = LowStock
-		}*/
+	} else {
+		if stockValue < 5 {
+			stock = LowStock
+		}
+	}
+
 	articleType, _ := item.GetStringFieldValue(1)   //.Fields[1].(string)
 	outletGrade, ok := item.GetStringFieldValue(20) //.Fields[20].(string)
 	var outlet *string
@@ -169,15 +173,6 @@ func (c *CartGrain) AddItem(sku string, qty int, country string, storeId *string
 	return c.Apply(cartItem, false)
 }
 
-/*
-Legacy storage (event sourcing) removed in oneof refactor.
-Kept stub (commented) for potential future reintroduction using proto envelopes.
-
-func (c *CartGrain) GetStorageMessage(since int64) []interface{} {
-	return nil
-}
-*/
-
 func (c *CartGrain) GetState() ([]byte, error) {
 	return json.Marshal(c)
 }