update shipment type

lib/pages/fcs_shipment/model/fcs_shipment_model.dart

@@ -7,6 +7,7 @@ import 'package:fcs/domain/entities/fcs_shipment.dart';
 import 'package:fcs/pages/main/model/base_model.dart';
 import 'package:logging/logging.dart';
 
+import '../../../domain/entities/shipment_type.dart';
 import '../../../pagination/paginator_listener.dart';
 
 class FcsShipmentModel extends BaseModel {
@@ -15,6 +16,9 @@ class FcsShipmentModel extends BaseModel {
   bool isLoading = false;
   int selectedIndex = 0;
 
+  List<ShipmentType> shipmentTypes = [];
+  StreamSubscription<QuerySnapshot>? _shipmentTypeListener;
+
   onChanged(int index) {
     selectedIndex = index;
     loadFcsShipments(selectedIndex);
@@ -132,11 +136,35 @@ class FcsShipmentModel extends BaseModel {
 
   void initUser(user) {
     super.initUser(user);
+    _loadShipmentTypes();
   }
 
   @override
   logout() async {
     fcsShipments?.close();
+    _shipmentTypeListener?.cancel();
+    shipmentTypes.clear();
+  }
+
+  Future<void> _loadShipmentTypes() async {
+    try {
+      _shipmentTypeListener = FirebaseFirestore.instance
+          .collection(
+              "/$config_collection/$setting_doc_id/$shipment_type_collection")
+          .snapshots()
+          .listen((QuerySnapshot snapshot) {
+        shipmentTypes.clear();
+        shipmentTypes = snapshot.docs.map((documentSnapshot) {
+          var privilege = ShipmentType.fromMap(
+              documentSnapshot.data() as Map<String, dynamic>,
+              documentSnapshot.id);
+          return privilege;
+        }).toList();
+        notifyListeners();
+      });
+    } catch (e) {
+      log.warning("Error!! $e");
+    }
   }
 
   Future<void> create(FcsShipment fcsShipment) {
@@ -163,6 +191,10 @@ class FcsShipmentModel extends BaseModel {
     return Services.instance.fcsShipmentService.invoiceFcsShipment(id);
   }
 
+  Future<void> cancel(String id) {
+    return Services.instance.fcsShipmentService.cancelFcsShipment(id);
+  }
+
   Future<String> report(FcsShipment fcsShipment) {
     return Services.instance.fcsShipmentService.report(fcsShipment);
   }