TF-2819 calendar event maybe api & data source implementation

lib/features/email/data/datasource_impl/calendar_event_datasource_impl.dart

@@ -2,6 +2,7 @@
 import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/core/id.dart';
 import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_accept_response.dart';
+import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_maybe_response.dart';
 import 'package:tmail_ui_user/features/email/data/datasource/calendar_event_datasource.dart';
 import 'package:tmail_ui_user/features/email/data/network/calendar_event_api.dart';
 import 'package:tmail_ui_user/features/email/domain/model/event_action.dart';
@@ -33,4 +34,11 @@ class CalendarEventDataSourceImpl extends CalendarEventDataSource {
       return await _calendarEventAPI.acceptEventInvitation(accountId, blobIds);
     }).catchError(_exceptionThrower.throwException);
   }
+
+  @override
+  Future<CalendarEventMaybeResponse> maybeEventInvitation(AccountId accountId, Set<Id> blobIds) {
+    return Future.sync(() async {
+      return await _calendarEventAPI.maybe(accountId, blobIds);
+    }).catchError(_exceptionThrower.throwException);
+  }
 }

lib/features/email/data/datasource_impl/local_calendar_event_datasource_impl.dart

@@ -2,6 +2,7 @@
 import 'package:jmap_dart_client/jmap/account_id.dart';
 import 'package:jmap_dart_client/jmap/core/id.dart';
 import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_accept_response.dart';
+import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_maybe_response.dart';
 import 'package:tmail_ui_user/features/email/data/datasource/calendar_event_datasource.dart';
 import 'package:tmail_ui_user/features/email/data/local/html_analyzer.dart';
 import 'package:tmail_ui_user/features/email/domain/model/event_action.dart';
@@ -31,4 +32,9 @@ class LocalCalendarEventDataSourceImpl extends CalendarEventDataSource {
   Future<CalendarEventAcceptResponse> acceptEventInvitation(AccountId accountId, Set<Id> blobIds) {
     throw UnimplementedError();
   }
+
+  @override
+  Future<CalendarEventMaybeResponse> maybeEventInvitation(AccountId accountId, Set<Id> blobIds) {
+    throw UnimplementedError();
+  }
 }

lib/features/email/data/network/calendar_event_api.dart

@@ -8,6 +8,8 @@ import 'package:jmap_dart_client/jmap/mail/calendar/parse/calendar_event_parse_m
 import 'package:jmap_dart_client/jmap/mail/calendar/parse/calendar_event_parse_response.dart';
 import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_accept_method.dart';
 import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_accept_response.dart';
+import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_maybe_method.dart';
+import 'package:jmap_dart_client/jmap/mail/calendar/reply/calendar_event_maybe_response.dart';
 import 'package:tmail_ui_user/features/email/domain/exceptions/calendar_event_exceptions.dart';
 import 'package:tmail_ui_user/features/email/presentation/model/blob_calendar_event.dart';
 
@@ -65,4 +67,25 @@ class CalendarEventAPI {
 
     return calendarEventAcceptResponse;
   }
+
+  Future<CalendarEventMaybeResponse> maybe(AccountId accountId, Set<Id> blobIds) async {
+    final requestBuilder = JmapRequestBuilder(_httpClient, ProcessingInvocation());
+    final calendarEventMaybeMethod = CalendarEventMaybeMethod(
+      accountId,
+      blobIds: blobIds.toList());
+    final calendarEventMaybeInvocation = requestBuilder.invocation(calendarEventMaybeMethod);
+    final response = await (requestBuilder..usings(calendarEventMaybeMethod.requiredCapabilities))
+      .build()
+      .execute();
+
+    final calendarEventMaybeResponse = response.parse<CalendarEventMaybeResponse>(
+      calendarEventMaybeInvocation.methodCallId,
+      CalendarEventMaybeResponse.deserialize);
+
+    if (calendarEventMaybeResponse == null) {
+      throw NotMaybeableCalendarEventException();
+    }
+
+    return calendarEventMaybeResponse;
+  }
 }

lib/features/email/domain/exceptions/calendar_event_exceptions.dart

@@ -4,3 +4,5 @@ class NotFoundCalendarEventException implements Exception {}
 class NotParsableCalendarEventException implements Exception {}
 
 class NotAcceptableCalendarEventException implements Exception {}
+
+class NotMaybeableCalendarEventException implements Exception {}