refactor(cat-voices): user and wallet model

catalyst_voices/lib/pages/registration/account_completed/account_completed_panel.dart

@@ -37,10 +37,11 @@ class AccountCompletedPanel extends StatelessWidget {
                       info: context.l10n.registrationCompletedKeychainInfo,
                     ),
                     BlocSelector<RegistrationCubit, RegistrationState, String>(
-                      selector: (state) =>
-                          state.walletLinkStateData.selectedWallet?.wallet.name
-                              .capitalize() ??
-                          '',
+                      selector: (state) {
+                        final wallet = state.walletLinkStateData.selectedWallet;
+                        final name = wallet?.meta.name ?? '';
+                        return name.capitalize();
+                      },
                       builder: (context, walletName) {
                         return _SummaryItem(
                           image: VoicesAssets.images.registrationSummaryWallet,

catalyst_voices/lib/pages/registration/wallet_link/stage/rbac_transaction_panel.dart

@@ -100,7 +100,7 @@ class _BlocSummary extends StatelessWidget {
         RegistrationState,
         ({
           Set<AccountRole> roles,
-          CardanoWalletDetails selectedWallet,
+          WalletHeader selectedWallet,
           Coin transactionFee,
         })?>(
       selector: (state) {
@@ -135,7 +135,7 @@ class _BlocSummary extends StatelessWidget {
 
 class _Summary extends StatelessWidget {
   final Set<AccountRole> roles;
-  final CardanoWalletDetails walletDetails;
+  final WalletHeader walletDetails;
   final Coin transactionFee;
 
   const _Summary({
@@ -164,8 +164,7 @@ class _Summary extends StatelessWidget {
           ),
           const SizedBox(height: 12),
           Text(
-            context.l10n
-                .walletLinkTransactionLinkItem(walletDetails.wallet.name),
+            context.l10n.walletLinkTransactionLinkItem(walletDetails.meta.name),
             style: Theme.of(context).textTheme.bodySmall,
           ),
           for (final role in roles) ...[

catalyst_voices/lib/pages/registration/wallet_link/stage/select_wallet_panel.dart

@@ -1,18 +1,18 @@
 import 'dart:async';
 
-import 'package:catalyst_cardano/catalyst_cardano.dart';
 import 'package:catalyst_voices/pages/registration/wallet_link/bloc_wallet_link_builder.dart';
 import 'package:catalyst_voices/pages/registration/widgets/registration_stage_message.dart';
 import 'package:catalyst_voices/widgets/widgets.dart';
 import 'package:catalyst_voices_assets/catalyst_voices_assets.dart';
 import 'package:catalyst_voices_blocs/catalyst_voices_blocs.dart';
 import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
+import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:catalyst_voices_shared/catalyst_voices_shared.dart';
 import 'package:flutter/material.dart';
 import 'package:result_type/result_type.dart';
 
 /// Callback called when a [wallet] is selected.
-typedef _OnSelectWallet = Future<void> Function(CardanoWallet wallet);
+typedef _OnSelectWallet = Future<void> Function(WalletMetadata wallet);
 
 class SelectWalletPanel extends StatefulWidget {
   const SelectWalletPanel({
@@ -67,7 +67,7 @@ class _SelectWalletPanelState extends State<SelectWalletPanel> {
     unawaited(RegistrationCubit.of(context).walletLink.refreshWallets());
   }
 
-  Future<void> _onSelectWallet(CardanoWallet wallet) async {
+  Future<void> _onSelectWallet(WalletMetadata wallet) async {
     final registration = RegistrationCubit.of(context);
 
     final success = await registration.walletLink.selectWallet(wallet);
@@ -88,7 +88,7 @@ class _BlocWallets extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return BlocWalletLinkBuilder<Result<List<CardanoWallet>, Exception>?>(
+    return BlocWalletLinkBuilder<Result<List<WalletMetadata>, Exception>?>(
       selector: (state) => state.wallets,
       builder: (context, state) {
         return _Wallets(
@@ -102,7 +102,7 @@ class _BlocWallets extends StatelessWidget {
 }
 
 class _Wallets extends StatelessWidget {
-  final Result<List<CardanoWallet>, Exception>? result;
+  final Result<List<WalletMetadata>, Exception>? result;
   final _OnSelectWallet onSelectWallet;
   final VoidCallback onRefreshTap;
 
@@ -119,13 +119,15 @@ class _Wallets extends StatelessWidget {
           ? _WalletsList(wallets: value, onSelectWallet: onSelectWallet)
           : _WalletsEmpty(onRetry: onRefreshTap),
       Failure() => _WalletsError(onRetry: onRefreshTap),
-      _ => const Center(child: VoicesCircularProgressIndicator()),
+      _ => const Center(
+          child: DelayedWidget(child: VoicesCircularProgressIndicator()),
+        ),
     };
   }
 }
 
 class _WalletsList extends StatelessWidget {
-  final List<CardanoWallet> wallets;
+  final List<WalletMetadata> wallets;
   final _OnSelectWallet onSelectWallet;
 
   const _WalletsList({
@@ -148,7 +150,7 @@ class _WalletsList extends StatelessWidget {
 }
 
 class _WalletTile extends StatefulWidget {
-  final CardanoWallet wallet;
+  final WalletMetadata wallet;
   final _OnSelectWallet onSelectWallet;
 
   const _WalletTile({

catalyst_voices/lib/pages/registration/wallet_link/stage/wallet_details_panel.dart

@@ -61,7 +61,7 @@ class _BlocWalletDetailsText extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return BlocWalletLinkBuilder<String?>(
-      selector: (state) => state.selectedWallet?.wallet.name,
+      selector: (state) => state.selectedWallet?.meta.name,
       builder: (context, state) {
         return Text(
           context.l10n.walletLinkWalletDetailsContent(state ?? ''),
@@ -101,7 +101,7 @@ class _BlocNavigation extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return BlocWalletLinkBuilder<bool>(
-      selector: (state) => state.selectedWallet?.hasEnoughBalance ?? false,
+      selector: (state) => state.hasEnoughBalance,
       builder: (context, state) {
         if (state) {
           return const RegistrationBackNextNavigation();

catalyst_voices/lib/widgets/app_bar/session/session_state_header.dart

@@ -20,7 +20,7 @@ class SessionStateHeader extends StatelessWidget {
           VisitorSessionState() => const _VisitorButton(),
           GuestSessionState() => const _GuestButton(),
           ActiveUserSessionState(:final user) => AccountPopup(
-              avatarLetter: user.acronym ?? 'A',
+              avatarLetter: user.acronym,
               onLockAccountTap: () => debugPrint('Lock account'),
               onProfileKeychainTap: () => unawaited(
                 const AccountRoute().push<void>(context),

catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/cubits/recover_cubit.dart

@@ -76,18 +76,18 @@ final class RecoverCubit extends Cubit<RecoverStateData>
         return;
       }
 
-      final walletDetails =
+      final walletHeader =
           await _registrationService.recoverCardanoWalletDetails(seedPhrase);
 
       final accountDetails = AccountSummaryData(
         walletConnection: WalletConnectionData(
-          name: walletDetails.wallet.name,
-          icon: walletDetails.wallet.icon,
+          name: walletHeader.meta.name,
+          icon: walletHeader.meta.icon,
         ),
         walletSummary: WalletSummaryData(
-          balance: CryptocurrencyFormatter.formatAmount(walletDetails.balance),
-          address: WalletAddressFormatter.formatShort(walletDetails.address),
-          clipboardAddress: walletDetails.address.toBech32(),
+          balance: CryptocurrencyFormatter.formatAmount(walletHeader.balance),
+          address: WalletAddressFormatter.formatShort(walletHeader.address),
+          clipboardAddress: walletHeader.address.toBech32(),
           showLowBalance: false,
         ),
       );

catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/cubits/wallet_link_cubit.dart

@@ -6,6 +6,7 @@ import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:catalyst_voices_services/catalyst_voices_services.dart';
 import 'package:catalyst_voices_shared/catalyst_voices_shared.dart';
 import 'package:catalyst_voices_view_models/catalyst_voices_view_models.dart';
+import 'package:collection/collection.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:result_type/result_type.dart';
 
@@ -14,7 +15,7 @@ final _logger = Logger('WalletLinkCubit');
 abstract interface class WalletLinkManager {
   Future<void> refreshWallets();
 
-  Future<bool> selectWallet(CardanoWallet wallet);
+  Future<bool> selectWallet(WalletMetadata mete);
 
   void selectRoles(Set<AccountRole> roles);
 }
@@ -24,45 +25,72 @@ final class WalletLinkCubit extends Cubit<WalletLinkStateData>
     implements WalletLinkManager {
   final RegistrationService registrationService;
 
+  final _wallets = <CardanoWallet>[];
+  CardanoWallet? _selectedWallet;
+
   WalletLinkCubit({required this.registrationService})
       : super(const WalletLinkStateData());
 
+  CardanoWallet? get selectedWallet => _selectedWallet;
+
   @override
   Future<void> refreshWallets() async {
     try {
+      _wallets.clear();
       emit(state.copyWith(wallets: const Optional.empty()));
 
       final wallets =
           await registrationService.getCardanoWallets().withMinimumDelay();
 
-      emit(state.copyWith(wallets: Optional(Success(wallets))));
+      _wallets
+        ..clear()
+        ..addAll(wallets);
+
+      final walletsMetaList =
+          wallets.map(WalletMetadata.fromCardanoWallet).toList();
+
+      emit(state.copyWith(wallets: Optional(Success(walletsMetaList))));
     } on Exception catch (error, stackTrace) {
       _logger.severe('refreshWallets', error, stackTrace);
+
+      _wallets.clear();
+
       emit(state.copyWith(wallets: Optional(Failure(error))));
     }
   }
 
   @override
-  Future<bool> selectWallet(CardanoWallet wallet) async {
+  Future<bool> selectWallet(WalletMetadata meta) async {
     try {
-      final walletDetails =
+      final wallet =
+          _wallets.firstWhereOrNull((wallet) => wallet.name == meta.name);
+
+      if (wallet == null) {
+        throw const LocalizedRegistrationWalletNotFoundException();
+      }
+
+      _selectedWallet = wallet;
+
+      final walletHeader =
           await registrationService.getCardanoWalletDetails(wallet);
 
       final walletConnection = WalletConnectionData(
-        name: wallet.name,
-        icon: wallet.icon,
+        name: walletHeader.meta.name,
+        icon: walletHeader.meta.icon,
         isConnected: true,
       );
       final walletSummary = WalletSummaryData(
-        balance: CryptocurrencyFormatter.formatAmount(walletDetails.balance),
-        address: WalletAddressFormatter.formatShort(walletDetails.address),
-        clipboardAddress: walletDetails.address.toBech32(),
+        balance: CryptocurrencyFormatter.formatAmount(walletHeader.balance),
+        address: WalletAddressFormatter.formatShort(walletHeader.address),
+        clipboardAddress: walletHeader.address.toBech32(),
         showLowBalance:
-            walletDetails.balance < CardanoWalletDetails.minAdaForRegistration,
+            walletHeader.balance < CardanoWalletDetails.minAdaForRegistration,
       );
 
       final newState = state.copyWith(
-        selectedWallet: Optional(walletDetails),
+        selectedWallet: Optional(walletHeader),
+        hasEnoughBalance:
+            walletHeader.balance >= CardanoWalletDetails.minAdaForRegistration,
         walletConnection: Optional(walletConnection),
         walletSummary: Optional(walletSummary),
       );
@@ -73,6 +101,8 @@ final class WalletLinkCubit extends Cubit<WalletLinkStateData>
     } catch (error, stackTrace) {
       _logger.severe('selectWallet', error, stackTrace);
 
+      _selectedWallet = null;
+
       emit(
         state.copyWith(
           selectedWallet: const Optional.empty(),
@@ -81,6 +111,8 @@ final class WalletLinkCubit extends Cubit<WalletLinkStateData>
         ),
       );
 
+      emitError(error);
+
       return false;
     }
   }

catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/registration_cubit.dart

@@ -129,7 +129,7 @@ final class RegistrationCubit extends Cubit<RegistrationState>
       );
 
       final unsignedTx = await registrationService.prepareRegistration(
-        wallet: _walletLinkState.selectedCardanoWallet!,
+        wallet: _walletLinkCubit.selectedWallet!,
         // TODO(dtscalac): inject the networkId
         networkId: NetworkId.testnet,
         seedPhrase: _keychainState.seedPhrase!,
@@ -163,7 +163,7 @@ final class RegistrationCubit extends Cubit<RegistrationState>
       );
 
       final signedTx = await registrationService.submitRegistration(
-        wallet: _walletLinkState.selectedCardanoWallet!,
+        wallet: _walletLinkCubit.selectedWallet!,
         unsignedTx: _registrationState.unsignedTx!.success,
       );
 

catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/state_data/wallet_link_state_data.dart

@@ -1,20 +1,21 @@
-import 'package:catalyst_cardano/catalyst_cardano.dart';
 import 'package:catalyst_cardano_serialization/catalyst_cardano_serialization.dart';
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:catalyst_voices_view_models/catalyst_voices_view_models.dart';
 import 'package:equatable/equatable.dart';
 import 'package:result_type/result_type.dart';
 
 final class WalletLinkStateData extends Equatable {
-  final Result<List<CardanoWallet>, Exception>? wallets;
-  final CardanoWalletDetails? selectedWallet;
+  final Result<List<WalletMetadata>, Exception>? wallets;
+  final WalletHeader? selectedWallet;
+  final bool hasEnoughBalance;
   final WalletConnectionData? walletConnection;
   final WalletSummaryData? walletSummary;
   final Set<AccountRole>? selectedRoles;
 
   const WalletLinkStateData({
     this.wallets,
     this.selectedWallet,
+    this.hasEnoughBalance = false,
     this.walletConnection,
     this.walletSummary,
     this.selectedRoles,
@@ -26,19 +27,18 @@ final class WalletLinkStateData extends Equatable {
   /// Returns the default roles every account will have.
   Set<AccountRole> get defaultRoles => {AccountRole.voter};
 
-  /// Returns the selected & enabled cardano wallet.
-  CardanoWallet? get selectedCardanoWallet => selectedWallet?.wallet;
-
   WalletLinkStateData copyWith({
-    Optional<Result<List<CardanoWallet>, Exception>>? wallets,
-    Optional<CardanoWalletDetails>? selectedWallet,
+    Optional<Result<List<WalletMetadata>, Exception>>? wallets,
+    Optional<WalletHeader>? selectedWallet,
+    bool? hasEnoughBalance,
     Optional<WalletConnectionData>? walletConnection,
     Optional<WalletSummaryData>? walletSummary,
     Optional<Set<AccountRole>>? selectedRoles,
   }) {
     return WalletLinkStateData(
       wallets: wallets.dataOr(this.wallets),
       selectedWallet: selectedWallet.dataOr(this.selectedWallet),
+      hasEnoughBalance: hasEnoughBalance ?? this.hasEnoughBalance,
       walletConnection: walletConnection.dataOr(this.walletConnection),
       walletSummary: walletSummary.dataOr(this.walletSummary),
       selectedRoles: selectedRoles.dataOr(this.selectedRoles),
@@ -49,6 +49,7 @@ final class WalletLinkStateData extends Equatable {
   List<Object?> get props => [
         wallets,
         selectedWallet,
+        hasEnoughBalance,
         walletConnection,
         walletSummary,
         selectedRoles,

catalyst_voices/packages/catalyst_voices_blocs/lib/src/session/session_bloc.dart

@@ -1,3 +1,4 @@
+import 'package:catalyst_cardano_serialization/catalyst_cardano_serialization.dart';
 import 'package:catalyst_voices_blocs/src/session/session_event.dart';
 import 'package:catalyst_voices_blocs/src/session/session_state.dart';
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
@@ -88,7 +89,25 @@ final class SessionBloc extends Bloc<SessionEvent, SessionState> {
   }
 
   /// Temporary implementation for testing purposes.
-  User get _dummyUser => const User(name: 'Account');
+  User get _dummyUser {
+    /* cSpell:disable */
+    return User(
+      profile: Profile(
+        walletHeader: WalletHeader(
+          meta: const WalletMetadata(
+            name: 'Dummy Wallet',
+            icon: null,
+          ),
+          balance: Coin.fromAda(10),
+          address: ShelleyAddress.fromBech32(
+            'addr_test1vzpwq95z3xyum8vqndgdd'
+            '9mdnmafh3djcxnc6jemlgdmswcve6tkw',
+          ),
+        ),
+      ),
+    );
+    /* cSpell:enable */
+  }
 
   /// Temporary implementation for testing purposes.
   SeedPhrase get _dummySeedPhrase => SeedPhrase.fromMnemonic(