import 'dart:convert';

import 'package:flutter/foundation.dart';
import 'package:umeng_common_sdk/umeng_common_sdk.dart';
import 'package:wow_english/models/user_entity.dart';
import 'package:wow_english/route/route.dart';
import 'package:wow_english/utils/sp_util.dart';

import '../../utils/audio_player_util.dart';

class UserUtil {

  static const String _prefsKeyUserInfo = "key_user_info";

  static UserEntity? _userEntity;

  static void saveUser(UserEntity? user) {
    if (user == null) {
      _clearUserData();
      return;
    }
    _userEntity = user;
    _saveUserJson(user.toString());
  }

  static UserEntity? getUser() {
    if (_userEntity == null) {
      String? userJson = _getUserJson();
      if (userJson != null && userJson.isNotEmpty) {
        try {
          var userEntity = UserEntity.fromJson(json.decode(userJson));
          // todo 并且在有效期，计算一下, "expireTime": 2592000 倒计时需要手动转换，后面再优化
          _userEntity = userEntity;
        } catch (e) {
          if (kDebugMode) {
            print(e);
          }
          _clearUserData();
        }
      }
    }
    return _userEntity;
  }

  static void _saveUserJson(String userJson) {
    SpUtil.getInstance().setData(_prefsKeyUserInfo, userJson);
  }

  static String? _getUserJson() {
    return SpUtil.getInstance().get<String>(_prefsKeyUserInfo);
  }

  static void _clearUserData() {
    _userEntity = null;
    SpUtil.getInstance().remove(_prefsKeyUserInfo);
  }

  static void logout([bool showPasswordLoginPage = false]) {
    _clearUserData();
    // 判断下不在Splash页就跳转
    /*var currentPageName = ModalRoute.of(AppRouter.context)?.settings.name;
    Log.d('当前页面：$currentPageName');
    if (currentPageName != AppRouteName.splash) {
      Navigator.of(AppRouter.context).pushNamedAndRemoveUntil(AppRouteName.login, (route) => false);
    }*/
    UmengCommonSdk.onProfileSignOff();
    AudioPlayerUtil.getInstance().pause();
    pushNamedAndRemoveUntil(AppRouteName.login, (route) => false, arguments: {'showPasswordPage': showPasswordLoginPage});
  }

  // 是否有权限
  static bool hasPermission() {
    return _userEntity?.valid ?? false;
  }

  // 是否登录（token是否有效）
  static bool isLogined() {
    return getUserToken().isNotEmpty;
  }

  static String getUserToken() {
    return _userEntity?.token ?? '';
  }

  // （vip）剩余有效期
  static int getRemainingValidity() {
    return _userEntity?.validDay ?? 0;
  }
}