import 'dart:convert';
import 'dart:io';

import 'package:device_info_plus/device_info_plus.dart';
import 'package:get/get.dart';
import 'package:logger/logger.dart';
import 'package:loopin/IM/im_service.dart';
import 'package:loopin/models/conversation_type.dart';
import 'package:loopin/utils/storage.dart';
import 'package:tencent_cloud_chat_push/common/tim_push_listener.dart';
import 'package:tencent_cloud_chat_push/common/tim_push_message.dart';
import 'package:tencent_cloud_chat_push/tencent_cloud_chat_push.dart';
import 'package:tencent_cloud_chat_sdk/models/v2_tim_conversation.dart';
import 'package:tencent_cloud_chat_sdk/tencent_im_sdk_plugin.dart';

final logger = Logger();

class PushService {
  static late TIMPushListener _timPushListener;

  Future<void> _registerPushInIsolate(Map<String, dynamic> args) async {
    final sdkAppId = args['sdkAppId'] as int;
    final appKey = args['appKey'] as String;
    final apnsCertificateID = args['apnsCertificateID'] as int;

    try {
      await TencentCloudChatPush().registerPush(
        sdkAppId: sdkAppId,
        appKey: appKey,
        apnsCertificateID: apnsCertificateID,
        onNotificationClicked: _onNotificationClicked,
      );
    } catch (e) {
      logger.e('注册推送失败: $e');
    }
  }

  /// 初始化推送服务
  Future<void> initPush({
    required int sdkAppId,
    required String appKey, // 客户端密钥
  }) async {
    int apnsCertificateID;
    final devices = await _getDeviceBrand();
    apnsCertificateID = _getApnsCertificateIDForBrand(devices);
    if (apnsCertificateID == 0) {
      logger.w('手机厂商:$devices, 未配置证书');
    }

    // 注册推送（初始化）
    // if (Platform.isAndroid) {
    //   await compute(_registerPushInIsolate, {
    //     'sdkAppId': sdkAppId,
    //     'appKey': appKey,
    //     'apnsCertificateID': apnsCertificateID,
    //   });
    // } else {
    await TencentCloudChatPush().registerPush(
      onNotificationClicked: _onNotificationClicked,
      sdkAppId: sdkAppId,
      appKey: appKey,
      apnsCertificateID: apnsCertificateID,
    );
    // }

    // 关闭 App 在前台时弹出通知栏
    await TencentCloudChatPush().disablePostNotificationInForeground(disable: true);

    ///处理安卓端异常问题；
    if (Platform.isAndroid) {
      await TencentImSDKPlugin.v2TIMManager.login(userID: Storage.read('userId'), userSig: Storage.read('userSig'));
    }

    logger.i('推送服务已注册，手机:$devices,证书ID:$apnsCertificateID');

    // 添加在线时监听器
    _addPushListener();
  }

  /// 注销推送（退出登录时调用）
  static Future<void> unInitPush() async {
    try {
      await TencentCloudChatPush().unRegisterPush();
      _removePushListener();
    } catch (e) {
      logger.i("注销推送失败: $e");
    }
  }

  /// 添加监听器
  static void _addPushListener() {
    _timPushListener = TIMPushListener(
      onRecvPushMessage: (TimPushMessage message) {
        logger.i("[推送] 收到消息: ${message.toLogString()}");
      },
      onRevokePushMessage: (String messageId) {
        logger.i("[推送] 消息被撤回: $messageId");
      },
      onNotificationClicked: (String ext) {
        logger.i("[推送] 点击横幅 ext: $ext");
        _handleNotificationClick(ext);
      },
    );
    TencentCloudChatPush().addPushListener(listener: _timPushListener);
    logger.i('推送服务在线监听器已注册');
  }

  /// 移除监听器
  static void _removePushListener() {
    TencentCloudChatPush().removePushListener(listener: _timPushListener);
  }

  /// 横幅点击事件处理
  static void _onNotificationClicked({
    required String ext,
    String? userID,
    String? groupID,
  }) {
    logger.i("[点击通知回调] ext: $ext, userID: $userID, groupID: $groupID");
    _handleNotificationClick(ext, userID: userID, groupID: groupID);
  }

  /// 统一处理跳转逻辑
  static void _handleNotificationClick(String ext, {String? userID, String? groupID}) async {
    try {
      // ext={id:对应业务ID,type:'newFocus',userID:发送人的id，groupID：群ID}
      // final ext = jsonEncode({
      //   "userID": "123456",
      //   "groupID": "654321",
      // });
      final data = jsonDecode(ext);
      logger.i(data);
      final type = data['type'];
      final router = conversationTypeFromString(type);
      logger.w(router);
      if (router == null || router != '') {
        // 聊天
        if (data['userID'] != null || data['userID'] != '') {
          logger.w('有userID');
          // 单聊，获取会话
          final covRes = await ImService.instance.getConversation(conversationID: 'c2c_${data['userID']}');
          final V2TimConversation conversation = covRes.data;
          logger.w(conversation.toJson());
          if (conversation.conversationGroupList?.contains(ConversationType.noFriend.name) ?? false) {
            // nofriend会话,是否第一次聊天
            conversation.showName = conversation.showName ?? data['title'];
            Get.toNamed('/chatNoFriend', arguments: conversation);
          } else {
            // 去正常的会话
            Get.toNamed('/chat', arguments: conversation);
          }
        } else {
          logger.w('没有userID');

          // 群聊消息
          final groupRes = await ImService.instance.getConversation(conversationID: 'group_${data['groupID']}');
          Get.toNamed('/chatGroup', arguments: groupRes.data);
        }
      } else {
        // 通知类相关
        Get.toNamed('/$router', arguments: data['id'] ?? '');
      }
    } catch (e) {
      logger.i("[推送点击] ext 解析失败: $e");
    }
  }

  /// 获取手机品牌
  static Future<String> _getDeviceBrand() async {
    final deviceInfo = DeviceInfoPlugin();
    try {
      if (Platform.isAndroid) {
        final androidInfo = await deviceInfo.androidInfo;
        return androidInfo.brand.toLowerCase();
      } else if (Platform.isIOS) {
        return 'apple';
      } else {
        return 'unknown';
      }
    } catch (e, stack) {
      logger.w("获取设备品牌失败: $e\n$stack");
      return 'unknown';
    }
  }

  /// 获取对应厂商的证书ID
  static int _getApnsCertificateIDForBrand(String brand) {
    switch (brand) {
      case 'xiaomi':
      case 'redmi':
        return 41169;
      case 'oppo':
        return 41170;
      case 'vivo':
        return 41177;
      case 'meizu':
        return 41176;
      case 'apple':
        return 45356;
      case 'huawei':
        return 41171;
      case 'honor':
        return 41178;
      default:
        return 0;
    }
  }
}