validation if a hug has orders

apps/mobile/packages/features/client/hubs/lib/src/data/repositories_impl/hub_repository_impl.dart

@@ -94,6 +94,25 @@ class HubRepositoryImpl implements HubRepositoryInterface {
 
   @override
   Future<void> deleteHub(String id) async {
+    final String? businessId = dc.ClientSessionStore.instance.session?.business?.id;
+    if (businessId == null || businessId.isEmpty) {
+      await _firebaseAuth.signOut();
+      throw Exception('Business is missing. Please sign in again.');
+    }
+
+    final QueryResult<
+        dc.ListOrdersByBusinessAndTeamHubData,
+        dc.ListOrdersByBusinessAndTeamHubVariables> result = await _dataConnect
+        .listOrdersByBusinessAndTeamHub(
+          businessId: businessId,
+          teamHubId: id,
+        )
+        .execute();
+
+    if (result.data.orders.isNotEmpty) {
+      throw Exception("Sorry this hub has orders, it can't be deleted.");
+    }
+
     await _dataConnect.deleteTeamHub(id: id).execute();
   }