#连接库初步完成

lib/features/auth/data/datasources/i_auth_http_datasource.dart

@@ -1,5 +1,5 @@
 import '../models/user_model.dart';
 
-abstract class AuthHttpDataSource {
+abstract class IAuthHttpDataSource {
   Future<UserModel> login(String username, String password, int sourceType);
 }

lib/features/auth/data/datasources/i_auth_local_datasource.dart

@@ -0,0 +1,8 @@
+import '../../domain/entities/user_entity.dart';
+
+abstract class IAuthLocalDataSource {
+  Future<void> saveUser(UserEntity user);
+  Future<UserEntity?> getUser();
+  Future<void> deleteUser();
+  Future<bool> hasUser();
+}

lib/features/auth/data/datasources/impl/auth_http_datasource_impl.dart

@@ -2,9 +2,9 @@ import 'package:dio/dio.dart';
 import 'package:maibu_satabot_v2/core/consts/http_api_consts.dart';
 
 import '../../models/user_model.dart';
-import '../auth_http_datasource.dart';
+import '../i_auth_http_datasource.dart';
 
-class AuthHttpDataSourceImpl implements AuthHttpDataSource {
+class AuthHttpDataSourceImpl implements IAuthHttpDataSource {
   final Dio dio;
 
   AuthHttpDataSourceImpl(this.dio);

lib/features/auth/data/datasources/impl/auth_local_datasource_impl.dart

@@ -0,0 +1,41 @@
+import 'dart:convert';
+
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../../models/user_model.dart';
+import '../../../domain/entities/user_entity.dart';
+import '../i_auth_local_datasource.dart';
+
+class AuthLocalDatasourceImpl implements IAuthLocalDataSource {
+  final SharedPreferences _prefs;
+  static const _userKey = 'auth_user';
+
+  AuthLocalDatasourceImpl(this._prefs);
+
+  @override
+  Future<void> saveUser(UserEntity user) async {
+    // 1. 将对象转为 Map -> 2. 将 Map 转为 JSON 字符串
+    final model = UserModel.fromEntity(user);
+    await _prefs.setString(_userKey, json.encode(model.toJson()));
+  }
+
+  @override
+  Future<UserEntity?> getUser() async {
+    final jsonString = _prefs.getString(_userKey);
+    if (jsonString == null) return null;
+
+    // 将 JSON 转回 Model，再转成 Entity 返回给业务层
+    final model = UserModel.fromJson(json.decode(jsonString));
+    return model.toEntity();
+  }
+
+  @override
+  Future<void> deleteUser() async {
+    await _prefs.remove(_userKey);
+  }
+
+  @override
+  Future<bool> hasUser() async {
+    return _prefs.containsKey(_userKey);
+  }
+}

lib/features/auth/data/models/user_model.dart

@@ -1,8 +1,9 @@
 import 'package:maibu_satabot_v2/core/data/base_model.dart';
 
-import '../../../../core/domain/entities/user_entity.dart';
+import '../../domain/entities/user_entity.dart';
 
-class UserModel extends UserEntity implements BaseModel {
+
+class UserModel extends UserEntity implements BaseModel<UserEntity> {
   UserModel({
     required super.userId,
     required super.username,
@@ -26,6 +27,7 @@ class UserModel extends UserEntity implements BaseModel {
     );
   }
 
+  @override
   Map<String, dynamic> toJson() {
     return {
       'userId': userId,
@@ -38,17 +40,7 @@ class UserModel extends UserEntity implements BaseModel {
     };
   }
 
-  toEntity() {
-    return UserEntity(
-      userId: userId,
-      username: username,
-      nickname: nickname,
-      token: token,
-      avatar: avatar,
-      email: email,
-      phone: phone,
-    );
-  }
+
 
   factory UserModel.fromEntity(UserEntity entity) {
     return UserModel(
@@ -61,4 +53,17 @@ class UserModel extends UserEntity implements BaseModel {
       phone: entity.phone,
     );
   }
+
+  @override
+  UserEntity toEntity() {
+    return UserEntity(
+      userId: userId,
+      username: username,
+      nickname: nickname,
+      token: token,
+      avatar: avatar,
+      email: email,
+      phone: phone,
+    );
+  }
 }

lib/features/auth/data/repositories/auth_repository_impl.dart

@@ -1,15 +1,15 @@
 import 'package:dio/dio.dart';
 import 'package:fpdart/fpdart.dart';
-import 'package:maibu_satabot_v2/core/storage/user_storage.dart';
+import 'package:maibu_satabot_v2/features/auth/data/datasources/i_auth_local_datasource.dart';
 
-import '../../../../core/domain/entities/user_entity.dart';
+import '../../domain/entities/user_entity.dart';
 import '../../domain/errors/auth_failure.dart';
 import '../../domain/repositories/auth_repository.dart';
-import '../datasources/auth_http_datasource.dart';
+import '../datasources/i_auth_http_datasource.dart';
 
 class AuthRepositoryImpl implements AuthRepository {
-  final AuthHttpDataSource httpRemote;
-  final UserStorage localTokenStorage;
+  final IAuthHttpDataSource httpRemote;
+  final IAuthLocalDataSource localTokenStorage;
 
   AuthRepositoryImpl({
     required this.httpRemote,