redesigned payment page + a lot of fixes

frontend/pweb/lib/providers/wallet_transactions.dart

@@ -1,7 +1,6 @@
-import 'package:flutter/material.dart';
-import 'package:pshared/models/payment/status.dart';
+import 'package:flutter/foundation.dart';
 
-import 'package:pweb/models/wallet_transaction.dart';
+import 'package:pweb/models/wallet/wallet_transaction.dart';
 import 'package:pweb/services/wallet_transactions.dart';
 
 
@@ -10,27 +9,15 @@ class WalletTransactionsProvider extends ChangeNotifier {
 
   WalletTransactionsProvider(this._service);
 
-  List<WalletTransaction> _transactions = [];
-  List<WalletTransaction> _filteredTransactions = [];
-  DateTimeRange? _dateRange;
-  final Set<OperationStatus> _selectedStatuses = {};
-  final Set<WalletTransactionType> _selectedTypes = {};
-  String? _walletId;
+  List<WalletTransaction> _transactions = const [];
   bool _isLoading = false;
   String? _error;
+  String? _walletId;
 
-  List<WalletTransaction> get transactions => _transactions;
-  List<WalletTransaction> get filteredTransactions => _filteredTransactions;
-  DateTimeRange? get dateRange => _dateRange;
-  Set<OperationStatus> get selectedStatuses => _selectedStatuses;
-  Set<WalletTransactionType> get selectedTypes => _selectedTypes;
-  String? get walletId => _walletId;
+  List<WalletTransaction> get transactions => List.unmodifiable(_transactions);
   bool get isLoading => _isLoading;
   String? get error => _error;
-  bool get hasFilters =>
-      _dateRange != null ||
-      _selectedStatuses.isNotEmpty ||
-      _selectedTypes.isNotEmpty;
+  String? get walletId => _walletId;
 
   Future<void> load({String? walletId}) async {
     _isLoading = true;
@@ -40,65 +27,11 @@ class WalletTransactionsProvider extends ChangeNotifier {
     try {
       _walletId = walletId ?? _walletId;
       _transactions = await _service.fetchHistory(walletId: _walletId);
-      _applyFilters(notify: false);
-      _isLoading = false;
-      notifyListeners();
     } catch (e) {
       _error = e.toString();
+    } finally {
       _isLoading = false;
       notifyListeners();
     }
   }
-
-  void setWallet(String walletId) {
-    _walletId = walletId;
-    _applyFilters();
-  }
-
-  void setDateRange(DateTimeRange? range) {
-    _dateRange = range;
-    _applyFilters();
-  }
-
-  void toggleStatus(OperationStatus status) {
-    if (_selectedStatuses.contains(status)) {
-      _selectedStatuses.remove(status);
-    } else {
-      _selectedStatuses.add(status);
-    }
-    _applyFilters();
-  }
-
-  void toggleType(WalletTransactionType type) {
-    if (_selectedTypes.contains(type)) {
-      _selectedTypes.remove(type);
-    } else {
-      _selectedTypes.add(type);
-    }
-    _applyFilters();
-  }
-
-  void resetFilters() {
-    _dateRange = null;
-    _selectedStatuses.clear();
-    _selectedTypes.clear();
-    _applyFilters();
-  }
-
-  void _applyFilters({bool notify = true}) {
-    _filteredTransactions = _transactions.where((tx) {
-      final walletMatch = _walletId == null || tx.walletId == _walletId;
-      final statusMatch =
-          _selectedStatuses.isEmpty || _selectedStatuses.contains(tx.status);
-      final typeMatch =
-          _selectedTypes.isEmpty || _selectedTypes.contains(tx.type);
-      final dateMatch = _dateRange == null ||
-          (tx.date.isAfter(_dateRange!.start.subtract(const Duration(seconds: 1))) &&
-              tx.date.isBefore(_dateRange!.end.add(const Duration(seconds: 1))));
-
-      return walletMatch && statusMatch && typeMatch && dateMatch;
-    }).toList();
-
-    if (notify) notifyListeners();
-  }
 }