Support cloning

lib/data/models/product_model.dart

@@ -65,6 +65,10 @@ abstract class ProductEntity extends Object
   }
   ProductEntity._();
 
+  ProductEntity get clone => rebuild((b) => b
+    ..id = --ProductEntity.counter
+  );
+
   @override
   EntityType get entityType {
     return EntityType.product;

lib/ui/product/edit/product_edit.dart

@@ -1,4 +1,5 @@
 import 'package:invoiceninja_flutter/data/models/entities.dart';
+import 'package:invoiceninja_flutter/data/models/models.dart';
 import 'package:invoiceninja_flutter/ui/app/forms/custom_field.dart';
 import 'package:invoiceninja_flutter/ui/app/invoice/tax_rate_dropdown.dart';
 import 'package:invoiceninja_flutter/utils/formatting.dart';
@@ -127,6 +128,13 @@ class _ProductEditState extends State<ProductEdit> {
                 : ActionMenuButton(
                     entity: viewModel.product,
                     onSelected: viewModel.onActionSelected,
+                    customActions: [
+                      ActionMenuChoice(
+                        label: localization.clone,
+                        icon: Icons.control_point_duplicate,
+                        action: EntityAction.clone,
+                      ),
+                    ],
                   )
           ],
         ),

lib/ui/product/edit/product_edit_vm.dart

@@ -106,11 +106,14 @@ class ProductEditVM {
               store.dispatch(RestoreProductRequest(completer, product.id));
               message = AppLocalization.of(context).successfullyRestoredProduct;
               break;
+            case EntityAction.clone:
+              store.dispatch(UpdateProduct(product.clone));
+              break;
           }
           return completer.future.then((_) {
             if ([EntityAction.archive, EntityAction.delete].contains(action)) {
               Navigator.of(context).pop(message);
-            } else {
+            } else if (message.isNotEmpty) {
               Scaffold.of(context).showSnackBar(SnackBar(
                   content: SnackBarRow(
                     message: message,

lib/utils/localization.dart

@@ -177,6 +177,7 @@ class AppLocalization {
       'blank_contact': 'Blank Contact',
       'activity': 'Activity',
       'no_records_found': 'No records found',
+      'clone': 'Clone',
 
       'payment': 'Payment',
       'payments': 'Payments',
@@ -409,6 +410,7 @@ class AppLocalization {
   String get blankContact => _localizedValues[locale.languageCode]['blank_contact'];
   String get activity => _localizedValues[locale.languageCode]['activity'];
   String get noRecordsFound => _localizedValues[locale.languageCode]['no_records_found'];
+  String get clone => _localizedValues[locale.languageCode]['clone'];
 
   String get payment => _localizedValues[locale.languageCode]['payment'];
   String get payments => _localizedValues[locale.languageCode]['payments'];