TF-3082 Warn user and save identity cache on reload/session expired

lib/features/identity_creator/data/datasource/identity_creator_data_source.dart

@@ -0,0 +1,10 @@
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/user_name.dart';
+import 'package:tmail_ui_user/features/identity_creator/domain/model/identity_cache.dart';
+
+abstract class IdentityCreatorDataSource {
+  Future<void> saveIdentityCacheOnWeb(
+    AccountId accountId,
+    UserName userName,
+    {required IdentityCache identityCache});
+}

lib/features/identity_creator/data/datasource_impl/local_identity_creator_data_source_impl.dart

@@ -0,0 +1,42 @@
+import 'dart:convert';
+
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/user_name.dart';
+import 'package:model/extensions/account_id_extensions.dart';
+import 'package:tmail_ui_user/features/caching/utils/cache_utils.dart';
+import 'package:tmail_ui_user/features/identity_creator/data/datasource/identity_creator_data_source.dart';
+import 'package:tmail_ui_user/features/identity_creator/data/model/identity_cache_model.dart';
+import 'package:tmail_ui_user/features/identity_creator/domain/model/identity_cache.dart';
+import 'package:tmail_ui_user/main/exceptions/exception_thrower.dart';
+import 'package:universal_html/html.dart';
+
+class LocalIdentityCreatorDataSourceImpl implements IdentityCreatorDataSource {
+  LocalIdentityCreatorDataSourceImpl(this._exceptionThrower);
+
+  final ExceptionThrower _exceptionThrower;
+
+  static const sessionStorageKeyword = 'identityCreatorSessionStorage';
+
+  @override
+  Future<void> saveIdentityCacheOnWeb(
+    AccountId accountId,
+    UserName userName,
+    {required IdentityCache identityCache}
+  ) async {
+    return Future.sync(() {
+      final cacheKey = _generateTupleKey(accountId, userName);
+      Map<String, String> entries = {
+        cacheKey: jsonEncode(IdentityCacheModel.fromDomain(identityCache).toJson())
+      };
+      window.sessionStorage.addAll(entries);
+    }).catchError(_exceptionThrower.throwException);
+  }
+
+  String _generateTupleKey(AccountId accountId, UserName userName) {
+    return TupleKey(
+      LocalIdentityCreatorDataSourceImpl.sessionStorageKeyword,
+      accountId.asString,
+      userName.value
+    ).toString();
+  }
+}

lib/features/identity_creator/data/model/identity_cache_model.dart

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+import 'package:jmap_dart_client/jmap/identities/identity.dart';
+import 'package:json_annotation/json_annotation.dart';
+import 'package:tmail_ui_user/features/identity_creator/domain/model/identity_cache.dart';
+import 'package:tmail_ui_user/features/manage_account/presentation/model/identity_action_type.dart';
+import 'package:tmail_ui_user/features/public_asset/data/model/public_assets_in_identity_arguments_model.dart';
+
+part 'identity_cache_model.g.dart';
+
+@JsonSerializable(includeIfNull: false, explicitToJson: true)
+class IdentityCacheModel extends IdentityCache {
+  IdentityCacheModel({
+    required super.identity,
+    required super.identityActionType,
+    required super.isDefault,
+    required this.publicAssetsInIdentityArgumentsModel})
+    : super(publicAssetsInIdentityArguments: publicAssetsInIdentityArgumentsModel);
+
+  final PublicAssetsInIdentityArgumentsModel? publicAssetsInIdentityArgumentsModel;
+
+  factory IdentityCacheModel.fromJson(Map<String, dynamic> json) 
+    => _$IdentityCacheModelFromJson(json);
+
+  Map<String, dynamic> toJson() => _$IdentityCacheModelToJson(this);
+
+  factory IdentityCacheModel.fromDomain(IdentityCache identityCache) {
+    return IdentityCacheModel(
+      identity: identityCache.identity,
+      identityActionType: identityCache.identityActionType,
+      isDefault: identityCache.isDefault,
+      publicAssetsInIdentityArgumentsModel: identityCache.publicAssetsInIdentityArguments == null
+        ? null
+        : PublicAssetsInIdentityArgumentsModel.fromDomain(identityCache.publicAssetsInIdentityArguments!)
+    );
+  }
+}

lib/features/identity_creator/data/repository/identity_creator_repository_impl.dart

@@ -0,0 +1,21 @@
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/user_name.dart';
+import 'package:tmail_ui_user/features/identity_creator/data/datasource/identity_creator_data_source.dart';
+import 'package:tmail_ui_user/features/identity_creator/domain/model/identity_cache.dart';
+import 'package:tmail_ui_user/features/identity_creator/domain/repository/identity_creator_repository.dart';
+
+class IdentityCreatorRepositoryImpl implements IdentityCreatorRepository {
+  IdentityCreatorRepositoryImpl(this._identityCreatorDataSource);
+
+  final IdentityCreatorDataSource _identityCreatorDataSource;
+
+  @override
+  Future<void> saveIdentityCacheOnWeb(
+    AccountId accountId,
+    UserName userName,
+    {required IdentityCache identityCache}
+  ) => _identityCreatorDataSource.saveIdentityCacheOnWeb(
+    accountId,
+    userName,
+    identityCache: identityCache);
+}