Frontend first draft

frontend/pweb/lib/providers/recipient.dart

@@ -0,0 +1,80 @@
+import 'package:flutter/foundation.dart';
+
+import 'package:pshared/models/recipient/filter.dart';
+import 'package:pshared/models/recipient/recipient.dart';
+import 'package:pshared/models/recipient/status.dart';
+
+import 'package:pweb/services/recipient/recipient.dart';
+
+
+class RecipientProvider extends ChangeNotifier {
+  final RecipientService _service;
+
+  RecipientProvider(this._service);
+
+  List<Recipient> _recipients = [];
+  bool _isLoading = false;
+  String? _error;
+  RecipientFilter _selectedFilter = RecipientFilter.all;
+  String _query = '';
+
+  Recipient? _selectedRecipient;
+
+  List<Recipient> get recipients => _recipients;
+  bool get isLoading => _isLoading;
+  String? get error => _error;
+  RecipientFilter get selectedFilter => _selectedFilter;
+  String get query => _query;
+  Recipient? get selectedRecipient => _selectedRecipient;
+
+  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;
+  }
+
+  Future<void> loadRecipients() async {
+    _isLoading = true;
+    _error = null;
+    notifyListeners();
+
+    try {
+      _recipients = await _service.fetchRecipients();
+    } catch (e) {
+      _error = e.toString();
+    } finally {
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  void setFilter(RecipientFilter filter) {
+    _selectedFilter = filter;
+    notifyListeners();
+  }
+
+  void setQuery(String query) {
+    _query = query.trim().toLowerCase();
+    notifyListeners();
+  }
+
+  void selectRecipient(Recipient? recipient) {
+    _selectedRecipient = recipient;
+    notifyListeners();
+  }
+}