added wallet source to quotation preparation

frontend/pshared/lib/data/mapper/wallet/asset.dart

@@ -1,6 +1,6 @@
 import 'package:pshared/data/dto/wallet/asset.dart';
 import 'package:pshared/data/mapper/payment/enums.dart';
-import 'package:pshared/models/wallet/wallet.dart';
+import 'package:pshared/models/wallet/asset.dart';
 
 
 extension WalletAssetDTOMapper on WalletAssetDTO {

frontend/pshared/lib/data/mapper/wallet/ui.dart

@@ -0,0 +1,26 @@
+import 'package:pshared/models/currency.dart';
+import 'package:pshared/models/wallet/wallet.dart' as domain;
+import 'package:pshared/models/payment/wallet.dart';
+import 'package:pshared/utils/currency.dart';
+
+
+extension WalletUiMapper on domain.WalletModel {
+  Wallet toUi() {
+    final amountStr = availableMoney?.amount ?? balance?.available?.amount ?? '0';
+    final parsedAmount = double.tryParse(amountStr) ?? 0;
+    final currency = currencyStringToCode(asset.tokenSymbol);
+    return Wallet(
+      id: walletRef,
+      walletUserID: walletRef,
+      balance: parsedAmount,
+      currency: currency,
+      isHidden: true,
+      calculatedAt: balance?.calculatedAt ?? DateTime.now(),
+      depositAddress: depositAddress,
+      network: asset.chain,
+      tokenSymbol: asset.tokenSymbol,
+      contractAddress: asset.contractAddress,
+      describable: describable,
+    );
+  }
+}

frontend/pshared/lib/models/payment/methods/type.dart

@@ -3,6 +3,7 @@ import 'package:pshared/models/payment/methods/card.dart';
 import 'package:pshared/models/payment/methods/crypto_address.dart';
 import 'package:pshared/models/payment/methods/data.dart';
 import 'package:pshared/models/payment/methods/iban.dart';
+import 'package:pshared/models/payment/methods/managed_wallet.dart';
 import 'package:pshared/models/payment/methods/russian_bank.dart';
 import 'package:pshared/models/payment/methods/wallet.dart';
 import 'package:pshared/models/payment/type.dart';
@@ -43,6 +44,7 @@ class PaymentMethod implements PermissionBoundStorable, Describable {
   IbanPaymentMethod? get ibanData => dataAsOrNull<IbanPaymentMethod>();
   RussianBankAccountPaymentMethod? get bankAccountData => dataAsOrNull<RussianBankAccountPaymentMethod>();
   WalletPaymentMethod? get walletData => dataAsOrNull<WalletPaymentMethod>();
+  ManagedWalletPaymentMethod? get managedWalletData => dataAsOrNull<ManagedWalletPaymentMethod>();
   CryptoAddressPaymentMethod? get cryptoAddressData => dataAsOrNull<CryptoAddressPaymentMethod>();
 
   @override

frontend/pshared/lib/models/payment/wallet.dart

@@ -0,0 +1,68 @@
+import 'package:pshared/models/currency.dart';
+import 'package:pshared/models/describable.dart';
+import 'package:pshared/models/payment/chain_network.dart';
+
+
+class Wallet implements Describable {
+  final String id;
+  final String walletUserID; // ID or number that we show the user
+  final double balance;
+  final Currency currency;
+  final bool isHidden;
+  final DateTime calculatedAt;
+  final String? depositAddress;
+  final ChainNetwork? network;
+  final String? tokenSymbol;
+  final String? contractAddress;
+  final Describable describable;
+
+  @override
+  String get name => describable.name;
+
+  @override
+  String? get description => describable.description;
+
+  Wallet({
+    required this.id,
+    required this.walletUserID,
+    required this.balance,
+    required this.currency,
+    required this.calculatedAt,
+    required this.describable,
+    this.isHidden = true,
+    this.depositAddress,
+    this.network,
+    this.tokenSymbol,
+    this.contractAddress,
+  });
+
+  Wallet copyWith({
+    String? id,
+    double? balance,
+    Currency? currency,
+    String? walletUserID,
+    bool? isHidden,
+    String? depositAddress,
+    ChainNetwork? network,
+    String? tokenSymbol,
+    String? contractAddress,
+    Describable? describable,
+    String? name,
+    String? Function()? description,
+  }) => Wallet(
+    id: id ?? this.id,
+    balance: balance ?? this.balance,
+    currency: currency ?? this.currency,
+    walletUserID: walletUserID ?? this.walletUserID,
+    isHidden: isHidden ?? this.isHidden,
+    calculatedAt: calculatedAt,
+    depositAddress: depositAddress ?? this.depositAddress,
+    network: network ?? this.network,
+    tokenSymbol: tokenSymbol ?? this.tokenSymbol,
+    contractAddress: contractAddress ?? this.contractAddress,
+    describable: describable 
+      ?? (name != null || description != null 
+        ? this.describable.copyWith(name: name, description: description) 
+        : this.describable),
+  );
+}

frontend/pshared/lib/models/wallet/asset.dart

@@ -0,0 +1,14 @@
+import 'package:pshared/models/payment/chain_network.dart';
+
+
+class WalletAsset {
+  final ChainNetwork chain;
+  final String tokenSymbol;
+  final String contractAddress;
+
+  const WalletAsset({
+    required this.chain,
+    required this.tokenSymbol,
+    required this.contractAddress,
+  });
+}

frontend/pshared/lib/models/wallet/wallet.dart

@@ -1,21 +1,9 @@
 import 'package:pshared/models/describable.dart';
-import 'package:pshared/models/payment/chain_network.dart';
+import 'package:pshared/models/wallet/asset.dart';
 import 'package:pshared/models/wallet/balance.dart';
 import 'package:pshared/models/wallet/money.dart';
 
 
-class WalletAsset {
-  final ChainNetwork chain;
-  final String tokenSymbol;
-  final String contractAddress;
-
-  const WalletAsset({
-    required this.chain,
-    required this.tokenSymbol,
-    required this.contractAddress,
-  });
-}
-
 class WalletModel implements Describable {
   final String walletRef;
   final String organizationRef;
@@ -55,20 +43,18 @@ class WalletModel implements Describable {
     WalletBalance? balance,
     WalletMoney? availableMoney,
     Describable? describable,
-  }) {
-    return WalletModel(
-      walletRef: walletRef,
-      organizationRef: organizationRef,
-      ownerRef: ownerRef,
-      asset: asset,
-      depositAddress: depositAddress,
-      status: status,
-      metadata: metadata,
-      createdAt: createdAt,
-      updatedAt: updatedAt,
-      balance: balance ?? this.balance,
-      availableMoney: availableMoney ?? this.availableMoney,
-      describable: describable ?? this.describable,
-    );
-  }
+  }) => WalletModel(
+    walletRef: walletRef,
+    organizationRef: organizationRef,
+    ownerRef: ownerRef,
+    asset: asset,
+    depositAddress: depositAddress,
+    status: status,
+    metadata: metadata,
+    createdAt: createdAt,
+    updatedAt: updatedAt,
+    balance: balance ?? this.balance,
+    availableMoney: availableMoney ?? this.availableMoney,
+    describable: describable ?? this.describable,
+  );
 }

frontend/pshared/lib/provider/payment/quotation.dart

@@ -1,8 +1,10 @@
 import 'package:flutter/material.dart';
-import 'package:pshared/models/asset.dart';
 
 import 'package:uuid/uuid.dart';
 
+import 'package:pshared/api/requests/payment/quote.dart';
+import 'package:pshared/data/mapper/payment/intent/payment.dart';
+import 'package:pshared/models/asset.dart';
 import 'package:pshared/models/payment/currency_pair.dart';
 import 'package:pshared/models/payment/fx/intent.dart';
 import 'package:pshared/models/payment/fx/side.dart';
@@ -11,14 +13,14 @@ import 'package:pshared/models/payment/methods/card.dart';
 import 'package:pshared/models/payment/methods/managed_wallet.dart';
 import 'package:pshared/models/payment/money.dart';
 import 'package:pshared/models/payment/settlement_mode.dart';
-import 'package:pshared/provider/payment/amount.dart';
-import 'package:pshared/api/requests/payment/quote.dart';
-import 'package:pshared/data/mapper/payment/intent/payment.dart';
 import 'package:pshared/models/payment/intent.dart';
 import 'package:pshared/models/payment/quote.dart';
 import 'package:pshared/provider/organizations.dart';
+import 'package:pshared/provider/payment/amount.dart';
+import 'package:pshared/provider/payment/wallets.dart';
 import 'package:pshared/provider/resource.dart';
 import 'package:pshared/service/payment/quotation.dart';
+import 'package:pshared/utils/currency.dart';
 
 
 class QuotationProvider extends ChangeNotifier {
@@ -26,31 +28,38 @@ class QuotationProvider extends ChangeNotifier {
   late OrganizationsProvider _organizations;
   bool _isLoaded = false;
 
-  void update(OrganizationsProvider venue, PaymentAmountProvider payment) {
+  void update(
+    OrganizationsProvider venue, 
+    PaymentAmountProvider payment,
+    WalletsProvider wallets,
+  ) {
     _organizations = venue;
-    getQuotation(PaymentIntent(
-      kind: PaymentKind.payout,
-      amount: Money(
-        amount: payment.amount.toString(), 
-        currency: 'USDT',
-      ),
-      destination: CardPaymentMethod(
-        pan: '4000000000000077',
-        firstName: 'John',
-        lastName: 'Doe',
-      ),
-      source: ManagedWalletPaymentMethod(
-        managedWalletRef: '',
-      ),
-      fx: FxIntent(
-        pair: CurrencyPair(
-          base: 'USDT', 
-          quote: 'RUB',
+    if (wallets.selectedWallet != null) {
+      getQuotation(PaymentIntent(
+        kind: PaymentKind.payout,
+        amount: Money(
+          amount: payment.amount.toString(), 
+          // TODO: adapt to possible other sources
+          currency: currencyCodeToString(wallets.selectedWallet!.currency),
         ),
-        side: FxSide.sellBaseBuyQuote,
-      ),
-      settlementMode: payment.payerCoversFee ? SettlementMode.fixReceived : SettlementMode.fixSource,
-    ));
+        destination: CardPaymentMethod(
+          pan: '4000000000000077',
+          firstName: 'John',
+          lastName: 'Doe',
+        ),
+        source: ManagedWalletPaymentMethod(
+          managedWalletRef: wallets.selectedWallet!.id,
+        ),
+        fx: FxIntent(
+          pair: CurrencyPair(
+            base: currencyCodeToString(wallets.selectedWallet!.currency), 
+            quote: 'RUB',
+          ),
+          side: FxSide.sellBaseBuyQuote,
+        ),
+        settlementMode: payment.payerCoversFee ? SettlementMode.fixReceived : SettlementMode.fixSource,
+      ));
+    }
   }
 
   PaymentQuote? get quotation => _quotation.data;

frontend/pshared/lib/provider/payment/wallets.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+
+import 'package:pshared/models/payment/wallet.dart';
+import 'package:pshared/provider/organizations.dart';
+import 'package:pshared/provider/resource.dart';
+import 'package:pshared/service/payment/wallets.dart';
+import 'package:pshared/utils/exception.dart';
+
+
+
+class WalletsProvider with ChangeNotifier {
+  final WalletsService _service;
+  late OrganizationsProvider _organizations;
+
+  WalletsProvider(this._service);
+
+  Resource<List<Wallet>> _resource = Resource(data: []);
+  Resource<List<Wallet>> get resource => _resource;
+
+  List<Wallet> get wallets => _resource.data ?? [];
+  bool get isLoading => _resource.isLoading;
+  Exception? get error => _resource.error;
+
+  Wallet? _selectedWallet;
+  Wallet? get selectedWallet => _selectedWallet;
+  final bool _isHidden = true;
+  bool get isHidden => _isHidden;
+
+  bool _isRefreshingBalances = false;
+  bool get isRefreshingBalances => _isRefreshingBalances;
+
+  void update(OrganizationsProvider organizations) {
+    _organizations = organizations;
+    if (_organizations.isOrganizationSet) loadWalletsWithBalances();
+  }
+
+  Future<Wallet> updateWallet(Wallet newWallet) {
+    throw Exception('update wallet is not implemented');
+  }
+
+  void selectWallet(Wallet wallet) {
+    _selectedWallet = wallet;
+    notifyListeners();
+  }
+
+  Future<void> loadWalletsWithBalances() async {
+    _setResource(_resource.copyWith(isLoading: true, error: null));
+    try {
+      final base = await _service.getWallets(_organizations.current.id);
+      final withBalances = <Wallet>[];
+      for (final wallet in base) {
+        try {
+          final balance = await _service.getBalance(_organizations.current.id, wallet.id);
+          withBalances.add(wallet.copyWith(balance: balance));
+        } catch (e) {
+          _setResource(_resource.copyWith(error: toException(e)));
+          withBalances.add(wallet);
+        }
+      }
+      _setResource(Resource(data: withBalances, isLoading: false, error: _resource.error));
+    } catch (e) {
+      _setResource(_resource.copyWith(isLoading: false, error: toException(e)));
+    }
+  }
+
+  Future<void> refreshBalances() async {
+    if (wallets.isEmpty) return;
+    _isRefreshingBalances = true;
+    notifyListeners();
+
+    try {
+      final updated = <Wallet>[];
+      for (final wallet in wallets) {
+        final balance = await _service.getBalance(_organizations.current.id, wallet.id);
+        updated.add(wallet.copyWith(balance: balance));
+      }
+      _setResource(_resource.copyWith(data: updated));
+    } catch (e) {
+      _setResource(_resource.copyWith(error: toException(e)));
+    } finally {
+      _isRefreshingBalances = false;
+      notifyListeners();
+    }
+  }
+
+  void toggleVisibility(String walletId) {
+    final index = wallets.indexWhere((w) => w.id == walletId);
+    if (index < 0) return;
+    final wallet = wallets[index];
+    final updated = wallet.copyWith(isHidden: !wallet.isHidden);
+    final next = List<Wallet>.from(wallets);
+    next[index] = updated;
+    _setResource(_resource.copyWith(data: next));
+    if (_selectedWallet?.id == walletId) {
+      _selectedWallet = updated;
+    }
+  }
+
+  void _setResource(Resource<List<Wallet>> newResource) {
+    _resource = newResource;
+    notifyListeners();
+  }
+}

frontend/pshared/lib/service/payment/wallets.dart

@@ -0,0 +1,27 @@
+import 'package:pshared/data/mapper/wallet/ui.dart';
+import 'package:pshared/models/payment/wallet.dart';
+import 'package:pshared/service/wallet.dart' as shared_wallet_service;
+
+
+abstract class WalletsService {
+  Future<List<Wallet>> getWallets(String organizationRef);
+  Future<double> getBalance(String organizationRef, String walletRef);
+}
+
+class ApiWalletsService implements WalletsService {
+  @override
+  Future<List<Wallet>> getWallets(String organizationRef) async {
+    final models = await shared_wallet_service.WalletService.list(organizationRef);
+    return models.map((m) => m.toUi()).toList();
+  }
+
+  @override
+  Future<double> getBalance(String organizationRef, String walletRef) async {
+    final balance = await shared_wallet_service.WalletService.getBalance(
+      organizationRef: organizationRef,
+      walletRef: walletRef,
+    );
+    final amount = balance.available?.amount;
+    return amount == null ? 0 : double.tryParse(amount) ?? 0;
+  }
+}

frontend/pshared/lib/utils/currency.dart

@@ -48,6 +48,21 @@ Currency currencyStringToCode(String currencyCode) {
   }
 }
 
+String currencyCodeToString(Currency currencyCode) {
+  switch (currencyCode) {
+    case Currency.usd:
+      return 'USD';
+    case Currency.usdt:
+      return 'USDT';
+    case Currency.usdc:
+      return 'USDC';
+    case Currency.rub:
+      return 'RUB';
+    case Currency.eur:
+      return 'EUR';
+  }
+}
+
 IconData iconForCurrencyType(Currency currencyCode) {
   switch (currencyCode) {
     case Currency.usd: