import 'package:shared_preferences/shared_preferences.dart';

class Storage {
  // 储存数据
  static Future set(String key, value) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    if (value is String) {
      return prefs.setString(key, value);
    } else if (value is int) {
      return prefs.setInt(key, value);
    } else if (value is double) {
      return prefs.setDouble(key, value);
    } else if (value is bool) {
      return prefs.setBool(key, value);
    } else if (value is List) {
      return prefs.setStringList(key, value.cast<String>());
    }
  }

  // 取出
  static Future get(key) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.get(key);
  }

  // 删除
  static Future remove(key) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    return prefs.remove(key);
  }
}

// const TokenKey = 'token';

// getToken() async {
//   SharedPreferences prefs = await SharedPreferences.getInstance();
//   return prefs.getString(TokenKey);
// }

// setToken(token) async {
//   SharedPreferences prefs = await SharedPreferences.getInstance();
//   prefs.setString(TokenKey, token.toString());
//   // if (token is String) {
//   //   prefs.setString(TokenKey, token);
//   // } else if (token is num) {
//   //   prefs.setInt(TokenKey, token as int);
//   // } else if (token is double) {
//   //   prefs.setDouble(TokenKey, token);
//   // } else if (token is bool) {
//   //   prefs.setBool(TokenKey, token);
//   // } else if (token is List) {
//   //   prefs.setStringList(TokenKey, token.cast<String>());
//   // }
// }

// removeToken() async {
//   SharedPreferences prefs = await SharedPreferences.getInstance();
//   prefs.remove(TokenKey);
// }