user_info_service.dart

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import 'dart:convert';
 
import '../api/api_client.dart';
import '../api/api_endpoints.dart';
import '../common/models/user_info.dart';
import '../services/secure_storage_service.dart';
import '../services/service_locator.dart';
 
class UserInfoService {
  
  UserInfoService._();
  
  static final UserInfoService instance = UserInfoService._();
  
  final apiClient = sl<ApiClient>();
  final _storage = SecureStorageService(key: 'user_info');
  
  UserInfo? _userInfo;
  
  UserInfo? get userInfo => _userInfo;
 
  Future<UserInfo?> fetchAndSaveUserInfo(int userId) async {
    try {
      final response = await apiClient.get(
        url: ApiEndpoints.userInfo(userId: userId),
      );
      
      final userInfo = UserInfo.fromJson(response);
      _userInfo = userInfo;
      await saveUserInfo(userInfo);
      
      return userInfo;
    } catch (e) {
      final storedUserInfo = await getUserInfo();
      _userInfo = storedUserInfo;
      return storedUserInfo;
    }
  }
 
  Future<void> saveUserInfo(UserInfo userInfo) async {
    _userInfo = userInfo;
    await _storage.save(value: jsonEncode(userInfo.toJson()));
  }
 
  Future<UserInfo?> getUserInfo() async {
    if (_userInfo != null) return _userInfo;
    
    final userInfoJson = await _storage.get();
    if (userInfoJson == null) return null;
    
    try {
      _userInfo = UserInfo.fromJson(jsonDecode(userInfoJson));
      return _userInfo;
    } catch (e) {
      return null;
    }
  }
 
  Future<void> deleteUserInfo() async {
    _userInfo = null;
    await _storage.delete();
  }
}