feat(cat-voices): registration seed phrase step

catalyst_voices/lib/dependency/dependencies.dart

@@ -29,7 +29,7 @@ final class Dependencies extends DependencyProvider {
       )
       ..registerLazySingleton<SessionBloc>(SessionBloc.new)
       // Factory will rebuild it each time needed
-      ..registerFactory<RegistrationBloc>(RegistrationBloc.new);
+      ..registerFactory<RegistrationCubit>(RegistrationCubit.new);
   }
 
   void _registerRepositories() {

catalyst_voices/lib/pages/registration/create_keychain/stage/instructions_panel.dart

@@ -40,17 +40,13 @@ class _Navigation extends StatelessWidget {
       children: [
         Expanded(
           child: VoicesBackButton(
-            onTap: () {
-              RegistrationBloc.of(context).add(const PreviousStepEvent());
-            },
+            onTap: () => RegistrationCubit.of(context).previousStep(),
           ),
         ),
         const SizedBox(width: 10),
         Expanded(
           child: VoicesNextButton(
-            onTap: () {
-              RegistrationBloc.of(context).add(const NextStepEvent());
-            },
+            onTap: () => RegistrationCubit.of(context).nextStep(),
           ),
         ),
       ],

catalyst_voices/lib/pages/registration/create_keychain/stage/seed_phrase_panel.dart

@@ -4,32 +4,45 @@ import 'package:catalyst_voices_localization/catalyst_voices_localization.dart';
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:flutter/material.dart';
 
-class SeedPhrasePanel extends StatelessWidget {
+class SeedPhrasePanel extends StatefulWidget {
   final SeedPhrase? seedPhrase;
   final bool isStoreSeedPhraseConfirmed;
   final bool isNextEnabled;
 
   const SeedPhrasePanel({
     super.key,
-    required this.seedPhrase,
+    this.seedPhrase,
     required this.isStoreSeedPhraseConfirmed,
     required this.isNextEnabled,
   });
 
+  @override
+  State<SeedPhrasePanel> createState() => _SeedPhrasePanelState();
+}
+
+class _SeedPhrasePanelState extends State<SeedPhrasePanel> {
+  @override
+  void initState() {
+    RegistrationCubit.of(context).buildSeedPhrase();
+    super.initState();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Column(
       children: [
         Expanded(
           child: _Body(
-            words: seedPhrase?.mnemonicWords ?? [],
+            words: widget.seedPhrase?.mnemonicWords,
             onDownloadTap: _downloadSeedPhrase,
           ),
         ),
         const SizedBox(height: 10),
-        _SeedPhraseStoredConfirmation(isConfirmed: isStoreSeedPhraseConfirmed),
+        _SeedPhraseStoredConfirmation(
+          isConfirmed: widget.isStoreSeedPhraseConfirmed,
+        ),
         const SizedBox(height: 10),
-        _Navigation(isNextEnabled: isNextEnabled),
+        _Navigation(isNextEnabled: widget.isNextEnabled),
       ],
     );
   }
@@ -38,10 +51,34 @@ class SeedPhrasePanel extends StatelessWidget {
 }
 
 class _Body extends StatelessWidget {
-  final List<String> words;
+  final List<String>? words;
   final VoidCallback? onDownloadTap;
 
   const _Body({
+    this.words,
+    this.onDownloadTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final words = this.words;
+
+    if (words == null || words.isEmpty) {
+      return const Center(child: VoicesCircularProgressIndicator());
+    } else {
+      return _SeedPhraseWords(
+        words: words,
+        onDownloadTap: onDownloadTap,
+      );
+    }
+  }
+}
+
+class _SeedPhraseWords extends StatelessWidget {
+  final List<String> words;
+  final VoidCallback? onDownloadTap;
+
+  const _SeedPhraseWords({
     required this.words,
     this.onDownloadTap,
   });
@@ -79,8 +116,7 @@ class _SeedPhraseStoredConfirmation extends StatelessWidget {
       value: isConfirmed,
       label: Text(context.l10n.createKeychainSeedPhraseStoreConfirmation),
       onChanged: (value) {
-        final event = SeedPhraseStoreConfirmationEvent(value: value);
-        RegistrationBloc.of(context).add(event);
+        RegistrationCubit.of(context).confirmSeedPhraseStored(confirmed: value);
       },
     );
   }
@@ -99,16 +135,14 @@ class _Navigation extends StatelessWidget {
       children: [
         Expanded(
           child: VoicesBackButton(
-            onTap: () {
-              RegistrationBloc.of(context).add(const PreviousStepEvent());
-            },
+            onTap: () => RegistrationCubit.of(context).previousStep(),
           ),
         ),
         const SizedBox(width: 10),
         Expanded(
           child: VoicesNextButton(
             onTap: isNextEnabled
-                ? () => RegistrationBloc.of(context).add(const NextStepEvent())
+                ? () => RegistrationCubit.of(context).nextStep
                 : null,
           ),
         ),

catalyst_voices/lib/pages/registration/create_keychain/stage/splash_panel.dart

@@ -27,9 +27,7 @@ class SplashPanel extends StatelessWidget {
         const Spacer(),
         VoicesFilledButton(
           child: Text(context.l10n.accountCreationSplashNextButton),
-          onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
-          },
+          onTap: () => RegistrationCubit.of(context).nextStep(),
         ),
       ],
     );

catalyst_voices/lib/pages/registration/get_started/get_started_panel.dart

@@ -46,8 +46,12 @@ class GetStartedPanel extends StatelessWidget {
                   key: ValueKey(type),
                   type: type,
                   onTap: () {
-                    final event = CreateAccountTypeEvent(type: type);
-                    RegistrationBloc.of(context).add(event);
+                    switch (type) {
+                      case CreateAccountType.createNew:
+                        RegistrationCubit.of(context).createNewKeychain();
+                      case CreateAccountType.recover:
+                        RegistrationCubit.of(context).recoverKeychain();
+                    }
                   },
                 );
               })

catalyst_voices/lib/pages/registration/registration_dialog.dart

@@ -22,8 +22,8 @@ class RegistrationDialog extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return BlocProvider(
-      create: (context) => Dependencies.instance.get<RegistrationBloc>(),
-      child: BlocBuilder<RegistrationBloc, RegistrationState>(
+      create: (context) => Dependencies.instance.get<RegistrationCubit>(),
+      child: BlocBuilder<RegistrationCubit, RegistrationState>(
         builder: (context, state) => _RegistrationDialog(state: state),
       ),
     );

catalyst_voices/lib/pages/registration/registration_info_panel.dart

@@ -26,7 +26,7 @@ class RegistrationInfoPanel extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return BlocBuilder<RegistrationBloc, RegistrationState>(
+    return BlocBuilder<RegistrationCubit, RegistrationState>(
       builder: (context, state) {
         final headerStrings = _buildHeaderStrings(
           context,

catalyst_voices/lib/pages/registration/wallet_link/intro/intro_panel.dart

@@ -26,7 +26,7 @@ class IntroPanel extends StatelessWidget {
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
           child: Text(context.l10n.chooseCardanoWallet),
         ),

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

@@ -16,15 +16,15 @@ class RbacTransactionPanel extends StatelessWidget {
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const PreviousStepEvent());
+            RegistrationCubit.of(context).previousStep();
           },
           child: const Text('Previous'),
         ),
         const SizedBox(height: 12),
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
           child: const Text('Next'),
         ),

catalyst_voices/lib/pages/registration/wallet_link/roles_chooser/roles_chooser_panel.dart

@@ -16,15 +16,15 @@ class RolesChooserPanel extends StatelessWidget {
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const PreviousStepEvent());
+            RegistrationCubit.of(context).previousStep();
           },
           child: const Text('Previous'),
         ),
         const SizedBox(height: 12),
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
           child: const Text('Next'),
         ),

catalyst_voices/lib/pages/registration/wallet_link/roles_summary/roles_summary_panel.dart

@@ -16,15 +16,15 @@ class RolesSummaryPanel extends StatelessWidget {
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const PreviousStepEvent());
+            RegistrationCubit.of(context).previousStep();
           },
           child: const Text('Previous'),
         ),
         const SizedBox(height: 12),
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
           child: const Text('Next'),
         ),

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

@@ -50,7 +50,7 @@ class _SelectWalletPanelState extends State<SelectWalletPanel> {
         const SizedBox(height: 24),
         VoicesBackButton(
           onTap: () {
-            RegistrationBloc.of(context).add(const PreviousStepEvent());
+            RegistrationCubit.of(context).previousStep();
           },
         ),
         const SizedBox(height: 10),
@@ -64,8 +64,7 @@ class _SelectWalletPanelState extends State<SelectWalletPanel> {
   }
 
   void _sendRefreshEvent() {
-    const event = RefreshCardanoWalletsEvent();
-    RegistrationBloc.of(context).add(event);
+    RegistrationCubit.of(context).refreshCardanoWallets();
   }
 }
 
@@ -105,7 +104,7 @@ class _WalletsList extends StatelessWidget {
           iconSrc: wallet.icon,
           name: Text(wallet.name),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
         );
       },

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

@@ -16,15 +16,15 @@ class WalletDetailsPanel extends StatelessWidget {
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const PreviousStepEvent());
+            RegistrationCubit.of(context).previousStep();
           },
           child: const Text('Previous'),
         ),
         const SizedBox(height: 12),
         VoicesFilledButton(
           leading: VoicesAssets.icons.wallet.buildIcon(),
           onTap: () {
-            RegistrationBloc.of(context).add(const NextStepEvent());
+            RegistrationCubit.of(context).nextStep();
           },
           child: const Text('Next'),
         ),

catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/controllers/keychain_creation_controller.dart → catalyst_voices/packages/catalyst_voices_blocs/lib/src/registration/cubits/keychain_creation_cubit.dart

@@ -1,39 +1,45 @@
-// ignore_for_file: one_member_abstracts
 // ignore_for_file: avoid_positional_boolean_parameters
 
 import 'package:catalyst_voices_blocs/catalyst_voices_blocs.dart';
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
-import 'package:flutter/foundation.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
 
-final class KeychainCreationController with ChangeNotifier {
-  // ignore: prefer_final_fields
-  SeedPhrase _seedPhrase = SeedPhrase();
+final class KeychainCreationCubit extends Cubit<CreateKeychain> {
+  CreateKeychainStage _stage;
+  SeedPhrase? _seedPhrase;
   bool _isSeedPhraseStoredConfirmed = false;
 
-  KeychainCreationController();
+  KeychainCreationCubit()
+      : _stage = CreateKeychainStage.splash,
+        super(const CreateKeychain());
 
-  void handleEvent(KeychainCreationEvent event) {
-    switch (event) {
-      case SeedPhraseStoreConfirmationEvent():
-        if (_isSeedPhraseStoredConfirmed != event.value) {
-          _isSeedPhraseStoredConfirmed = event.value;
-          notifyListeners();
-        }
+  void changeStage(CreateKeychainStage newValue) {
+    if (_stage != newValue) {
+      _stage = newValue;
+      emit(_buildState());
     }
   }
 
-  CreateKeychain buildState(CreateKeychainStage stage) {
-    return CreateKeychain(
-      stage: stage,
-      seedPhraseState: SeedPhraseState(
-        seedPhrase: _seedPhrase,
-        isStoredConfirmed: _isSeedPhraseStoredConfirmed,
-      ),
-    );
+  void buildSeedPhrase() {
+    _seedPhrase = SeedPhrase();
+    emit(_buildState());
+  }
+
+  void ensureSeedPhraseCreated() {
+    if (_seedPhrase == null) {
+      buildSeedPhrase();
+    }
+  }
+
+  void setSeedPhraseStoredConfirmed(bool newValue) {
+    if (_isSeedPhraseStoredConfirmed != newValue) {
+      _isSeedPhraseStoredConfirmed = newValue;
+      emit(_buildState());
+    }
   }
 
-  CreateKeychainStep? nextStep(CreateKeychainStage stage) {
-    final currentStageIndex = CreateKeychainStage.values.indexOf(stage);
+  CreateKeychainStep? nextStep() {
+    final currentStageIndex = CreateKeychainStage.values.indexOf(_stage);
     final isLast = currentStageIndex == CreateKeychainStage.values.length - 1;
     if (isLast) {
       return null;
@@ -43,8 +49,8 @@ final class KeychainCreationController with ChangeNotifier {
     return CreateKeychainStep(stage: nextStage);
   }
 
-  CreateKeychainStep? previousStep(CreateKeychainStage stage) {
-    final currentStageIndex = CreateKeychainStage.values.indexOf(stage);
+  CreateKeychainStep? previousStep() {
+    final currentStageIndex = CreateKeychainStage.values.indexOf(_stage);
     final isFirst = currentStageIndex == 0;
     if (isFirst) {
       return null;
@@ -53,4 +59,14 @@ final class KeychainCreationController with ChangeNotifier {
     final previousStage = CreateKeychainStage.values[currentStageIndex - 1];
     return CreateKeychainStep(stage: previousStage);
   }
+
+  CreateKeychain _buildState() {
+    return CreateKeychain(
+      stage: _stage,
+      seedPhraseState: SeedPhraseState(
+        seedPhrase: _seedPhrase,
+        isStoredConfirmed: _isSeedPhraseStoredConfirmed,
+      ),
+    );
+  }
 }