runable
This commit is contained in:
Phuoc Nguyen
215
.archive/category_remote_datasource.dart
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215
.archive/category_remote_datasource.dart
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import 'package:dio/dio.dart';
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import '../../../../core/constants/api_constants.dart';
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import '../../../../core/errors/exceptions.dart';
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import '../../../../core/network/dio_client.dart';
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import '../models/category_model.dart';
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/// Remote data source for categories API operations
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abstract class CategoryRemoteDataSource {
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/// Fetch all categories from the API
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Future<List<CategoryModel>> fetchCategories();
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/// Fetch a single category by ID
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Future<CategoryModel> fetchCategoryById(String id);
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/// Sync categories (bulk update/create)
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Future<void> syncCategories(List<CategoryModel> categories);
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}
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/// Implementation of CategoryRemoteDataSource using Dio
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class CategoryRemoteDataSourceImpl implements CategoryRemoteDataSource {
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final DioClient _dioClient;
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CategoryRemoteDataSourceImpl(this._dioClient);
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@override
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Future<List<CategoryModel>> fetchCategories() async {
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try {
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final response = await _dioClient.get(ApiConstants.categories);
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if (response.statusCode == ApiConstants.statusOk) {
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final data = response.data;
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// Handle different response structures
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List<dynamic> categoriesJson;
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if (data is Map<String, dynamic>) {
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// Response wrapped in object: { "categories": [...] }
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categoriesJson = data['categories'] as List<dynamic>? ??
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data['data'] as List<dynamic>? ??
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[];
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} else if (data is List) {
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// Direct array response
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categoriesJson = data;
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} else {
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throw DataParsingException('Unexpected response format');
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}
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return categoriesJson
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.map((json) => CategoryModel.fromJson(json as Map<String, dynamic>))
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.toList();
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} else {
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throw ServerException(
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'Failed to fetch categories',
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response.statusCode ?? 500,
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);
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}
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} on AppException {
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rethrow;
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} catch (e, stackTrace) {
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throw NetworkException(
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'Failed to fetch categories: ${e.toString()}',
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null,
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e,
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stackTrace,
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);
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}
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}
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@override
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Future<CategoryModel> fetchCategoryById(String id) async {
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try {
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final response = await _dioClient.get(ApiConstants.categoryById(id));
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if (response.statusCode == ApiConstants.statusOk) {
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final data = response.data;
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// Handle different response structures
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Map<String, dynamic> categoryJson;
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if (data is Map<String, dynamic>) {
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// Check if category is wrapped in a key
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categoryJson = data['category'] as Map<String, dynamic>? ??
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data['data'] as Map<String, dynamic>? ??
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data;
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} else {
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throw DataParsingException('Unexpected response format');
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}
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return CategoryModel.fromJson(categoryJson);
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} else if (response.statusCode == ApiConstants.statusNotFound) {
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throw NotFoundException('Category with ID $id not found');
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} else {
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throw ServerException(
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'Failed to fetch category',
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response.statusCode ?? 500,
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);
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}
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} on AppException {
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rethrow;
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} catch (e, stackTrace) {
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throw NetworkException(
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'Failed to fetch category: ${e.toString()}',
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null,
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e,
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stackTrace,
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);
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}
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}
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@override
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Future<void> syncCategories(List<CategoryModel> categories) async {
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try {
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final categoriesJson = categories.map((c) => c.toJson()).toList();
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final response = await _dioClient.post(
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ApiConstants.syncCategories,
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data: {
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'categories': categoriesJson,
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},
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);
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if (response.statusCode != ApiConstants.statusOk &&
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response.statusCode != ApiConstants.statusCreated) {
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throw ServerException(
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'Failed to sync categories',
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response.statusCode ?? 500,
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);
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}
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} on AppException {
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rethrow;
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} catch (e, stackTrace) {
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throw NetworkException(
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'Failed to sync categories: ${e.toString()}',
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null,
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e,
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stackTrace,
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);
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}
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}
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}
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/// Mock implementation for testing and development
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class CategoryRemoteDataSourceMock implements CategoryRemoteDataSource {
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/// Simulate network delay
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Future<void> _delay() async {
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await Future.delayed(
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Duration(milliseconds: ApiConstants.mockApiDelay),
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);
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}
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@override
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Future<List<CategoryModel>> fetchCategories() async {
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await _delay();
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// Return mock categories
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return [
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CategoryModel(
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id: '1',
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name: 'Electronics',
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description: 'Electronic devices and accessories',
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iconPath: 'assets/icons/electronics.png',
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color: '#2196F3',
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productCount: 25,
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createdAt: DateTime.now().subtract(const Duration(days: 60)),
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),
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CategoryModel(
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id: '2',
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name: 'Clothing',
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description: 'Fashion and apparel',
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iconPath: 'assets/icons/clothing.png',
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color: '#E91E63',
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productCount: 50,
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createdAt: DateTime.now().subtract(const Duration(days: 50)),
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),
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CategoryModel(
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id: '3',
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name: 'Food & Beverages',
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description: 'Food, drinks, and snacks',
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iconPath: 'assets/icons/food.png',
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color: '#FF9800',
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productCount: 100,
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createdAt: DateTime.now().subtract(const Duration(days: 40)),
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),
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CategoryModel(
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id: '4',
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name: 'Home & Garden',
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description: 'Home improvement and garden supplies',
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iconPath: 'assets/icons/home.png',
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color: '#4CAF50',
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productCount: 30,
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createdAt: DateTime.now().subtract(const Duration(days: 30)),
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),
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];
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}
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@override
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Future<CategoryModel> fetchCategoryById(String id) async {
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await _delay();
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// Return mock category
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return CategoryModel(
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id: id,
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name: 'Sample Category $id',
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description: 'This is sample category $id',
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iconPath: 'assets/icons/category.png',
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color: '#2196F3',
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productCount: 10,
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createdAt: DateTime.now().subtract(const Duration(days: 30)),
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);
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}
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@override
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Future<void> syncCategories(List<CategoryModel> categories) async {
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await _delay();
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// Mock sync - do nothing
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}
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}
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