TF-3157 Implement web socket push

lib/features/push_notification/domain/exceptions/web_socket_exceptions.dart

@@ -0,0 +1,5 @@
+class WebSocketPushNotSupportedException implements Exception {}
+
+class WebSocketUriUnavailableException implements Exception {}
+
+class WebSocketTicketUnavailableException implements Exception {}

lib/features/push_notification/domain/repository/web_socket_repository.dart

@@ -0,0 +1,6 @@
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/session/session.dart';
+
+abstract class WebSocketRepository {
+  Stream getWebSocketChannel(Session session, AccountId accountId);
+}

lib/features/push_notification/domain/state/web_socket_push_state.dart

@@ -0,0 +1,19 @@
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:jmap_dart_client/jmap/push/state_change.dart';
+
+class InitializingWebSocketPushChannel extends LoadingState {}
+
+class WebSocketPushStateReceived extends UIState {
+  final StateChange stateChange;
+
+  WebSocketPushStateReceived(this.stateChange);
+
+  @override
+  List<Object> get props => [stateChange];
+}
+
+class WebSocketConnectionFailed extends FeatureFailure {
+
+  WebSocketConnectionFailed({super.exception});
+}

lib/features/push_notification/domain/usecases/connect_web_socket_interactor.dart

@@ -0,0 +1,39 @@
+import 'dart:convert';
+
+import 'package:core/presentation/state/failure.dart';
+import 'package:core/presentation/state/success.dart';
+import 'package:core/utils/app_logger.dart';
+import 'package:dartz/dartz.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/session/session.dart';
+import 'package:jmap_dart_client/jmap/push/state_change.dart';
+import 'package:tmail_ui_user/features/push_notification/domain/repository/web_socket_repository.dart';
+import 'package:tmail_ui_user/features/push_notification/domain/state/web_socket_push_state.dart';
+
+class ConnectWebSocketInteractor {
+  final WebSocketRepository _webSocketRepository;
+
+  ConnectWebSocketInteractor(this._webSocketRepository);
+
+  Stream<Either<Failure, Success>> execute(
+    Session session,
+    AccountId accountId
+  ) async* {
+    try {
+      yield Right(InitializingWebSocketPushChannel());
+      yield* _webSocketRepository
+        .getWebSocketChannel(session, accountId)
+        .map(_toStateChange);
+    } catch (e) {
+      logError('ConnectWebSocketInteractor::execute: $e');
+      yield Left(WebSocketConnectionFailed(exception: e));
+    }
+  }
+
+  Either<Failure, Success> _toStateChange(dynamic data) {
+    if (data is String) {
+      data = jsonDecode(data);
+    }
+    return Right(WebSocketPushStateReceived(StateChange.fromJson(data)));
+  }
+}