Feat/fulfill swaps and claims with locations (#3518)

* re-add if statements

* initial implementation

* add changeset

* address feedback

* remove context param from create-fulfillment

* fix tests

packages/inventory/src/services/inventory.ts

@@ -474,6 +474,10 @@ export default class InventoryService implements IInventoryService {
       context
     )
 
+    if (locationIds.length === 0) {
+      return 0
+    }
+
     const availableQuantity =
       await this.inventoryLevelService_.getAvailableQuantity(
         inventoryItemId,
@@ -506,6 +510,10 @@ export default class InventoryService implements IInventoryService {
       context
     )
 
+    if (locationIds.length === 0) {
+      return 0
+    }
+
     const stockedQuantity =
       await this.inventoryLevelService_.getStockedQuantity(
         inventoryItemId,
@@ -538,6 +546,10 @@ export default class InventoryService implements IInventoryService {
       context
     )
 
+    if (locationIds.length === 0) {
+      return 0
+    }
+
     const reservedQuantity =
       await this.inventoryLevelService_.getReservedQuantity(
         inventoryItemId,