refactoring

lib/data/services/secure_storage.dart

@@ -0,0 +1,47 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class SecureStorage {
+  final FlutterSecureStorage _storage = const FlutterSecureStorage();
+
+  Future<void> write(String key, String value) async {
+    await _storage.write(key: key, value: value);
+  }
+
+  Future<String?> read(String key) async {
+    return await _storage.read(key: key);
+  }
+
+  Future<void> delete(String key) async {
+    await _storage.delete(key: key);
+  }
+
+  Future<void> saveUserId(String userId) async {
+    await write('user_id', userId);
+  }
+
+  Future<String?> getUserId() async {
+    return await read('user_id');
+  }
+
+  Future<void> saveUserName(String userName) async {
+    await write('user_name', userName);
+  }
+
+  Future<String?> getUserName() async {
+    return await read('user_name');
+  }
+
+  Future<void> saveUserLastName(String userLastName) async {
+    await write('user_last_name', userLastName);
+  }
+
+  Future<String?> getUserLastName() async {
+    return await read('user_last_name');
+  }
+
+  Future<void> deleteUserInfo() async {
+    await delete('user_id');
+    await delete('user_name');
+    await delete('user_last_name');
+  }
+}