TF-438 Add abstract for get/store/delete StateToRefresh and get email changes to push notification

lib/features/push_notification/data/datasource/fcm_datasource.dart

@@ -1,5 +1,7 @@
 
+import 'package:fcm/model/type_name.dart';
 import 'package:model/fcm/fcm_token_dto.dart';
+import 'package:jmap_dart_client/jmap/core/state.dart' as jmap;
 
 abstract class FCMDatasource {
   Future<FCMTokenDto> getFCMToken(String accountId);
@@ -7,4 +9,10 @@ abstract class FCMDatasource {
   Future<void> setFCMToken(FCMTokenDto fcmToken);
 
   Future<void> deleteFCMToken(String accountId);
+
+  Future<bool> storeStateToRefresh(TypeName typeName, jmap.State newState);
+
+  Future<jmap.State> getStateToRefresh(TypeName typeName);
+
+  Future<bool> deleteStateToRefresh(TypeName typeName);
 }

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

@@ -1,4 +1,9 @@
+import 'package:fcm/model/type_name.dart';
+import 'package:jmap_dart_client/jmap/account_id.dart';
+import 'package:jmap_dart_client/jmap/core/properties/properties.dart';
 import 'package:model/fcm/fcm_token_dto.dart';
+import 'package:tmail_ui_user/features/thread/domain/model/email_response.dart';
+import 'package:jmap_dart_client/jmap/core/state.dart' as jmap;
 
 abstract class FCMRepository {
   Future<FCMTokenDto> getFCMToken(String accountId);
@@ -6,4 +11,19 @@ abstract class FCMRepository {
   Future<void> setFCMToken(FCMTokenDto fcmTokenDto);
 
   Future<void> deleteFCMToken(String accountId);
+
+  Future<EmailsResponse> getEmailChangesToPushNotification(
+    AccountId accountId,
+    jmap.State currentState,
+    {
+      Properties? propertiesCreated,
+      Properties? propertiesUpdated
+    }
+  );
+
+  Future<bool> storeStateToRefresh(TypeName typeName, jmap.State newState);
+
+  Future<jmap.State> getStateToRefresh(TypeName typeName);
+
+  Future<bool> deleteStateToRefresh(TypeName typeName);
 }