Multiple Wallet support, history of each wallet and updated payment page

frontend/pweb/lib/providers/wallet_transactions.dart

@@ -0,0 +1,104 @@
+import 'package:flutter/material.dart';
+import 'package:pshared/models/payment/status.dart';
+
+import 'package:pweb/models/wallet_transaction.dart';
+import 'package:pweb/services/wallet_transactions.dart';
+
+
+class WalletTransactionsProvider extends ChangeNotifier {
+  final WalletTransactionsService _service;
+
+  WalletTransactionsProvider(this._service);
+
+  List<WalletTransaction> _transactions = [];
+  List<WalletTransaction> _filteredTransactions = [];
+  DateTimeRange? _dateRange;
+  final Set<OperationStatus> _selectedStatuses = {};
+  final Set<WalletTransactionType> _selectedTypes = {};
+  String? _walletId;
+  bool _isLoading = false;
+  String? _error;
+
+  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;
+  bool get isLoading => _isLoading;
+  String? get error => _error;
+  bool get hasFilters =>
+      _dateRange != null ||
+      _selectedStatuses.isNotEmpty ||
+      _selectedTypes.isNotEmpty;
+
+  Future<void> load({String? walletId}) async {
+    _isLoading = true;
+    _error = null;
+    notifyListeners();
+
+    try {
+      _walletId = walletId ?? _walletId;
+      _transactions = await _service.fetchHistory(walletId: _walletId);
+      _applyFilters(notify: false);
+      _isLoading = false;
+      notifyListeners();
+    } catch (e) {
+      _error = e.toString();
+      _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();
+  }
+}