fixes for multiple payout

frontend/pweb/lib/controllers/payouts/multiple_payouts.dart

@@ -1,23 +1,29 @@
+import 'dart:async';
+
 import 'package:flutter/foundation.dart';
 
 import 'package:pshared/controllers/payment/source.dart';
 import 'package:pshared/models/money.dart';
+import 'package:pshared/models/payment/asset.dart';
+import 'package:pshared/models/payment/chain_network.dart';
+import 'package:pshared/models/payment/methods/data.dart';
+import 'package:pshared/models/payment/methods/ledger.dart';
+import 'package:pshared/models/payment/methods/managed_wallet.dart';
 import 'package:pshared/models/payment/payment.dart';
 import 'package:pshared/models/payment/quote/status_type.dart';
-import 'package:pshared/models/payment/wallet.dart';
 
 import 'package:pweb/models/payment/multiple_payouts/csv_row.dart';
 import 'package:pweb/models/payment/multiple_payouts/state.dart';
 import 'package:pweb/providers/multiple_payouts.dart';
 import 'package:pweb/services/payments/csv_input.dart';
 
-
 class MultiplePayoutsController extends ChangeNotifier {
   final CsvInputService _csvInput;
   MultiplePayoutsProvider? _provider;
   PaymentSourceController? _sourceController;
   _PickState _pickState = _PickState.idle;
   Exception? _uiError;
+  String? _lastSourceKey;
 
   MultiplePayoutsController({required CsvInputService csvInput})
     : _csvInput = csvInput;
@@ -37,6 +43,7 @@ class MultiplePayoutsController extends ChangeNotifier {
       _sourceController?.removeListener(_onSourceChanged);
       _sourceController = sourceController;
       _sourceController?.addListener(_onSourceChanged);
+      _lastSourceKey = _currentSourceKey;
       shouldNotify = true;
     }
     if (shouldNotify) {
@@ -60,16 +67,16 @@ class MultiplePayoutsController extends ChangeNotifier {
       _provider?.quoteStatusType ?? QuoteStatusType.missing;
   Duration? get quoteTimeLeft => _provider?.quoteTimeLeft;
 
-  bool get canSend => (_provider?.canSend ?? false) && _selectedWallet != null;
+  bool get canSend => (_provider?.canSend ?? false) && _selectedSource != null;
   Money? get aggregateDebitAmount =>
-      _provider?.aggregateDebitAmountFor(_selectedWallet);
+      _provider?.aggregateDebitAmountForCurrency(_selectedSourceCurrencyCode);
   Money? get requestedSentAmount => _provider?.requestedSentAmount;
-  Money? get aggregateSettlementAmount =>
-      _provider?.aggregateSettlementAmountFor(_selectedWallet);
+  Money? get aggregateSettlementAmount => _provider
+      ?.aggregateSettlementAmountForCurrency(_selectedSourceCurrencyCode);
   Money? get aggregateFeeAmount =>
-      _provider?.aggregateFeeAmountFor(_selectedWallet);
+      _provider?.aggregateFeeAmountForCurrency(_selectedSourceCurrencyCode);
   double? get aggregateFeePercent =>
-      _provider?.aggregateFeePercentFor(_selectedWallet);
+      _provider?.aggregateFeePercentForCurrency(_selectedSourceCurrencyCode);
 
   Future<void> pickAndQuote() async {
     if (_pickState == _PickState.picking) return;
@@ -84,15 +91,16 @@ class MultiplePayoutsController extends ChangeNotifier {
     try {
       final picked = await _csvInput.pickCsv();
       if (picked == null) return;
-      final wallet = _selectedWallet;
-      if (wallet == null) {
-        _setUiError(StateError('Select source wallet first'));
+      final source = _selectedSource;
+      if (source == null) {
+        _setUiError(StateError('Select source of funds first'));
         return;
       }
       await provider.quoteFromCsv(
         fileName: picked.name,
         content: picked.content,
-        sourceWallet: wallet,
+        sourceMethod: source.method,
+        sourceCurrencyCode: source.currencyCode,
       );
     } catch (e) {
       _setUiError(e);
@@ -131,10 +139,78 @@ class MultiplePayoutsController extends ChangeNotifier {
   }
 
   void _onSourceChanged() {
+    final currentSourceKey = _currentSourceKey;
+    final sourceChanged = currentSourceKey != _lastSourceKey;
+    _lastSourceKey = currentSourceKey;
+    if (sourceChanged) {
+      unawaited(_requoteWithUploadedRows());
+    }
     notifyListeners();
   }
 
-  Wallet? get _selectedWallet => _sourceController?.selectedWallet;
+  String? get _selectedSourceCurrencyCode =>
+      _sourceController?.selectedCurrencyCode;
+  String? get _currentSourceKey {
+    final source = _sourceController;
+    if (source == null ||
+        source.selectedType == null ||
+        source.selectedRef == null) {
+      return null;
+    }
+    return '${source.selectedType!.name}:${source.selectedRef!}';
+  }
+
+  ({PaymentMethodData method, String currencyCode})? get _selectedSource {
+    final source = _sourceController;
+    if (source == null) return null;
+
+    final currencyCode = source.selectedCurrencyCode;
+    if (currencyCode == null || currencyCode.isEmpty) return null;
+
+    final wallet = source.selectedWallet;
+    if (wallet != null) {
+      final hasAsset = (wallet.tokenSymbol ?? '').isNotEmpty;
+      final asset = hasAsset
+          ? PaymentAsset(
+              chain: wallet.network ?? ChainNetwork.unspecified,
+              tokenSymbol: wallet.tokenSymbol!,
+              contractAddress: wallet.contractAddress,
+            )
+          : null;
+      return (
+        method: ManagedWalletPaymentMethod(
+          managedWalletRef: wallet.id,
+          asset: asset,
+        ),
+        currencyCode: currencyCode,
+      );
+    }
+
+    final ledger = source.selectedLedgerAccount;
+    if (ledger != null) {
+      return (
+        method: LedgerPaymentMethod(ledgerAccountRef: ledger.ledgerAccountRef),
+        currencyCode: currencyCode,
+      );
+    }
+
+    return null;
+  }
+
+  Future<void> _requoteWithUploadedRows() async {
+    final provider = _provider;
+    if (provider == null) return;
+    if (provider.selectedFileName == null || provider.rows.isEmpty) return;
+
+    final source = _selectedSource;
+    if (source == null) return;
+
+    _clearUiError(notify: false);
+    await provider.requoteUploadedRows(
+      sourceMethod: source.method,
+      sourceCurrencyCode: source.currencyCode,
+    );
+  }
 
   void _setUiError(Object error) {
     _uiError = error is Exception ? error : Exception(error.toString());