runable

lib/features/settings/domain/usecases/get_settings.dart

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+import 'package:dartz/dartz.dart';
+import '../../../../core/errors/failures.dart';
+import '../entities/app_settings.dart';
+import '../repositories/settings_repository.dart';
+
+/// Use case to get app settings
+class GetSettings {
+  final SettingsRepository repository;
+
+  GetSettings(this.repository);
+
+  Future<Either<Failure, AppSettings>> call() async {
+    return await repository.getSettings();
+  }
+}

lib/features/settings/domain/usecases/update_settings.dart

@@ -0,0 +1,15 @@
+import 'package:dartz/dartz.dart';
+import '../../../../core/errors/failures.dart';
+import '../entities/app_settings.dart';
+import '../repositories/settings_repository.dart';
+
+/// Use case to update app settings
+class UpdateSettings {
+  final SettingsRepository repository;
+
+  UpdateSettings(this.repository);
+
+  Future<Either<Failure, void>> call(AppSettings settings) async {
+    return await repository.updateSettings(settings);
+  }
+}