runable

lib/features/categories/data/repositories/category_repository_impl.dart

@@ -0,0 +1,49 @@
+import 'package:dartz/dartz.dart';
+import '../../domain/entities/category.dart';
+import '../../domain/repositories/category_repository.dart';
+import '../datasources/category_local_datasource.dart';
+import '../../../../core/errors/failures.dart';
+import '../../../../core/errors/exceptions.dart';
+
+class CategoryRepositoryImpl implements CategoryRepository {
+  final CategoryLocalDataSource localDataSource;
+
+  CategoryRepositoryImpl({
+    required this.localDataSource,
+  });
+
+  @override
+  Future<Either<Failure, List<Category>>> getAllCategories() async {
+    try {
+      final categories = await localDataSource.getAllCategories();
+      return Right(categories.map((model) => model.toEntity()).toList());
+    } on CacheException catch (e) {
+      return Left(CacheFailure(e.message));
+    }
+  }
+
+  @override
+  Future<Either<Failure, Category>> getCategoryById(String id) async {
+    try {
+      final category = await localDataSource.getCategoryById(id);
+      if (category == null) {
+        return Left(NotFoundFailure('Category not found'));
+      }
+      return Right(category.toEntity());
+    } on CacheException catch (e) {
+      return Left(CacheFailure(e.message));
+    }
+  }
+
+  @override
+  Future<Either<Failure, List<Category>>> syncCategories() async {
+    try {
+      // For now, return cached categories
+      // In the future, implement remote sync
+      final categories = await localDataSource.getAllCategories();
+      return Right(categories.map((model) => model.toEntity()).toList());
+    } on CacheException catch (e) {
+      return Left(CacheFailure(e.message));
+    }
+  }
+}