TF-148 Add domain layer for cleanup email cache

lib/features/cleanup/domain/model/cleanup_rule.dart

@@ -0,0 +1,22 @@
+
+import 'package:equatable/equatable.dart';
+
+class CleanupRule with EquatableMixin {
+  final Duration cachingEmailPeriod;
+
+  CleanupRule(this.cachingEmailPeriod);
+
+  @override
+  List<Object?> get props => [cachingEmailPeriod];
+}
+
+class Duration with EquatableMixin {
+  static final defaultValue = Duration(7);
+
+  final int countDay;
+
+  Duration(this.countDay);
+
+  @override
+  List<Object?> get props => [countDay];
+}

lib/features/cleanup/domain/repository/cleanup_repository.dart

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+import 'package:tmail_ui_user/features/cleanup/domain/model/cleanup_rule.dart';
+
+abstract class CleanupRepository {
+  Future<void> cleanEmailCache(CleanupRule cleanupRule);
+}

lib/features/cleanup/domain/state/cleanup_email_cache_state.dart

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+import 'package:core/core.dart';
+
+class CleanupEmailCacheSuccess extends UIState {
+
+  CleanupEmailCacheSuccess();
+
+  @override
+  List<Object> get props => [];
+}
+
+class CleanupEmailCacheFailure extends FeatureFailure {
+  final exception;
+
+  CleanupEmailCacheFailure(this.exception);
+
+  @override
+  List<Object> get props => [exception];
+}

lib/features/cleanup/domain/usecases/cleanup_email_cache_interactor.dart

@@ -0,0 +1,20 @@
+import 'package:core/core.dart';
+import 'package:dartz/dartz.dart';
+import 'package:tmail_ui_user/features/cleanup/domain/model/cleanup_rule.dart';
+import 'package:tmail_ui_user/features/cleanup/domain/repository/cleanup_repository.dart';
+import 'package:tmail_ui_user/features/cleanup/domain/state/cleanup_email_cache_state.dart';
+
+class CleanupEmailCacheInteractor {
+  final CleanupRepository cleanupRepository;
+
+  CleanupEmailCacheInteractor(this.cleanupRepository);
+
+  Future<Either<Failure, Success>> execute(CleanupRule cleanupRule) async {
+    try {
+      await cleanupRepository.cleanEmailCache(cleanupRule);
+      return Right<Failure, Success>(CleanupEmailCacheSuccess());
+    } catch (e) {
+      return Left(CleanupEmailCacheFailure(e));
+    }
+  }
+}