update invoice

lib/domain/constants.dart

@@ -6,6 +6,7 @@ const markets_collection = "markets";
 const packages_collection = "packages";
 const messages_collection = "messages";
 const fcs_shipment_collection = "fcs_shipments";
+const invoices_collection = "invoices";
 const delivery_address_collection = "delivery_addresses";
 const cargo_types_collection = "cargo_types";
 const custom_duties_collection = "custom_duties";

lib/domain/entities/receipt.dart

@@ -1,6 +1,11 @@
-class Receipt {
-  int amount;
-  DateTime date;
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 
-  Receipt({this.amount, this.date});
+class Receipt {
+  String id;
+  int amount;
+  String date;
+  String status;
+  String fileUrl;
+
+  Receipt({this.id, this.amount, this.date, this.status, this.fileUrl});
 }