refactor of money utils with new money2 package

frontend/pweb/lib/providers/multiple_payouts.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/foundation.dart';
 
-import 'package:pshared/models/money.dart';
+import 'package:money2/money2.dart';
+
 import 'package:pshared/models/payment/payment.dart';
 import 'package:pshared/models/payment/quote/quote.dart';
 import 'package:pshared/models/payment/quote/status_type.dart';
@@ -89,14 +90,16 @@ class MultiplePayoutsProvider extends ChangeNotifier {
   Money? get requestedSentAmount {
     if (_rows.isEmpty) return null;
     const currency = 'RUB';
+    final rubCurrency = money2CurrencyFromCode(currency);
+    if (rubCurrency == null) return null;
 
-    double total = 0;
+    Money? total;
     for (final row in _rows) {
-      final value = parseMoneyAmount(row.amount, fallback: double.nan);
-      if (value.isNaN) return null;
-      total += value;
+      final value = parseMoneyWithCurrency(row.amount, rubCurrency);
+      if (value == null) return null;
+      total = total == null ? value : total + value;
     }
-    return Money(amount: amountToString(total), currency: currency);
+    return total;
   }
 
   Money? aggregateSettlementAmountForCurrency(String? sourceCurrencyCode) {
@@ -118,11 +121,11 @@ class MultiplePayoutsProvider extends ChangeNotifier {
     final fee = aggregateFeeAmountForCurrency(sourceCurrencyCode);
     if (debit == null || fee == null) return null;
 
-    final debitValue = parseMoneyAmount(debit.amount, fallback: double.nan);
-    final feeValue = parseMoneyAmount(fee.amount, fallback: double.nan);
-    if (debit.currency.toUpperCase() != fee.currency.toUpperCase()) return null;
-    if (debitValue.isNaN || feeValue.isNaN || debitValue <= 0) return null;
-    return (feeValue / debitValue) * 100;
+    final debitValue = debit;
+    final feeValue = fee;
+    if (debitValue.currency.isoCode != feeValue.currency.isoCode) return null;
+    if (!debitValue.isPositive) return null;
+    return (feeValue.toDecimal() / debitValue.toDecimal()).toDouble() * 100;
   }
 
   Future<void> quoteFromCsv({
@@ -279,8 +282,8 @@ class MultiplePayoutsProvider extends ChangeNotifier {
     final sentAmount = requestedSentAmount;
     if (sentAmount == null) return null;
     return <String, String>{
-      UploadMetadataKeys.amount: sentAmount.amount,
-      UploadMetadataKeys.currency: sentAmount.currency,
+      UploadMetadataKeys.amount: sentAmount.toDecimal().toString(),
+      UploadMetadataKeys.currency: sentAmount.currency.isoCode,
     };
   }
 
@@ -290,10 +293,12 @@ class MultiplePayoutsProvider extends ChangeNotifier {
   ) {
     if (values == null || values.isEmpty) return null;
 
-    if (sourceCurrencyCode != null && sourceCurrencyCode.isNotEmpty) {
-      final sourceCurrency = sourceCurrencyCode.trim().toUpperCase();
+    final sourceCurrency =
+        money2CurrencyFromCode(sourceCurrencyCode)?.isoCode ??
+        sourceCurrencyCode;
+    if (sourceCurrency != null) {
       for (final value in values) {
-        if (value.currency.toUpperCase() == sourceCurrency) {
+        if (value.currency.isoCode == sourceCurrency) {
           return value;
         }
       }

frontend/pweb/lib/providers/wallet_transactions.dart

@@ -1,48 +0,0 @@
-import 'package:flutter/foundation.dart';
-
-import 'package:pweb/models/wallet/wallet_transaction.dart';
-import 'package:pweb/services/wallet_transactions.dart';
-
-
-class WalletTransactionsProvider extends ChangeNotifier {
-  final WalletTransactionsService _service;
-
-  WalletTransactionsProvider(this._service);
-
-  List<WalletTransaction> _transactions = const [];
-  bool _isLoading = false;
-  String? _error;
-  String? _walletId;
-  int _loadSeq = 0;
-
-  List<WalletTransaction> get transactions => List.unmodifiable(_transactions);
-  bool get isLoading => _isLoading;
-  String? get error => _error;
-  String? get walletId => _walletId;
-
-  Future<void> load({String? walletId}) async {
-    final targetWalletId = walletId ?? _walletId;
-    final requestSeq = ++_loadSeq;
-    _walletId = targetWalletId;
-    _isLoading = true;
-    _error = null;
-    notifyListeners();
-
-    try {
-      final fetched = await _service.fetchHistory(walletId: targetWalletId);
-      if (requestSeq != _loadSeq) return;
-
-      _transactions = targetWalletId == null
-          ? fetched
-          : fetched.where((tx) => tx.walletId == targetWalletId).toList();
-    } catch (e) {
-      if (requestSeq != _loadSeq) return;
-      _error = e.toString();
-    } finally {
-      if (requestSeq == _loadSeq) {
-        _isLoading = false;
-        notifyListeners();
-      }
-    }
-  }
-}