refactoring for recipient addition page

frontend/pshared/lib/provider/recipient/provider.dart

@@ -1,6 +1,5 @@
 
 import 'package:pshared/data/mapper/recipient/recipient.dart';
-import 'package:pshared/models/recipient/filter.dart';
 import 'package:pshared/models/recipient/recipient.dart';
 import 'package:pshared/models/recipient/status.dart';
 import 'package:pshared/models/recipient/type.dart';
@@ -11,71 +10,12 @@ import 'package:pshared/service/recipient/service.dart';
 
 class RecipientsProvider extends GenericProvider<Recipient> {
   late OrganizationsProvider _organizations;
-
-  RecipientFilter _selectedFilter = RecipientFilter.all;
-  String _query = '';
-  String? _previousRecipientRef;
-
-  RecipientFilter get selectedFilter => _selectedFilter;
-  String get query => _query;
+  String? _organizationRef;
 
   List<Recipient> get recipients => List<Recipient>.unmodifiable(items.toList()..sort((a, b) => a.storable.createdAt.compareTo(b.storable.createdAt))); 
 
   RecipientsProvider() : super(service: RecipientService.basicService);
 
-  Recipient? get previousRecipient => _previousRecipientRef == null
-      ? null
-      : getItemByRef(_previousRecipientRef!);
-
-  List<Recipient> get filteredRecipients {
-    List<Recipient> filtered = recipients.where((r) {
-      switch (_selectedFilter) {
-        case RecipientFilter.ready:
-          return r.status == RecipientStatus.ready;
-        case RecipientFilter.registered:
-          return r.status == RecipientStatus.registered;
-        case RecipientFilter.notRegistered:
-          return r.status == RecipientStatus.notRegistered;
-        case RecipientFilter.all:
-          return true;
-      }
-    }).toList();
-
-    if (_query.isNotEmpty) {
-      filtered = filtered.where((r) => r.matchesQuery(_query)).toList();
-    }
-
-    return filtered;
-  }
-
-  void setFilter(RecipientFilter filter) {
-    _selectedFilter = filter;
-    notifyListeners();
-  }
-
-  void setQuery(String query) {
-    _query = query.trim().toLowerCase();
-    notifyListeners();
-  }
-
-  @override
-  bool setCurrentObject(String? objectRef) {
-    final currentRef = currentObject?.id;
-    final didUpdate = super.setCurrentObject(objectRef);
-
-    if (didUpdate && currentRef != null && currentRef != objectRef) {
-      _previousRecipientRef = currentRef;
-    }
-
-    return didUpdate;
-  }
-
-  void restorePreviousRecipient() {
-    if (_previousRecipientRef != null) {
-      setCurrentObject(_previousRecipientRef);
-    }
-  }
-
   Future<Recipient> create({
     required String name,
     required String email,
@@ -92,8 +32,10 @@ class RecipientsProvider extends GenericProvider<Recipient> {
 
   void updateProviders(OrganizationsProvider organizations) {
     _organizations = organizations;
-    if (_organizations.isOrganizationSet) {
-      load(_organizations.current.id, _organizations.current.id);
-    }
+    if (!_organizations.isOrganizationSet) return;
+    final organizationRef = _organizations.current.id;
+    if (_organizationRef == organizationRef) return;
+    _organizationRef = organizationRef;
+    load(organizationRef, organizationRef);
   }
 }