import 'package:get/get.dart';
import 'package:loopin/IM/controller/chat_controller.dart';
import 'package:loopin/IM/controller/tab_bar_controller.dart';
import 'package:loopin/IM/im_core.dart';
import 'package:loopin/models/tab_type.dart';
import 'package:tencent_cloud_chat_sdk/enum/V2TimConversationListener.dart';
import 'package:tencent_cloud_chat_sdk/tencent_im_sdk_plugin.dart';

class GlobalBadge extends GetxController {
  /// 全局未读消息总数
  RxInt totalUnread = 0.obs;

  /// 监听器对象（用于 add/remove）
  late final V2TimConversationListener _listener;

  @override
  void onInit() {
    super.onInit();
    _listener = V2TimConversationListener(
      onTotalUnreadMessageCountChanged: (int count) {
        logger.i('未读数发生变化$count');
        totalUnread.value = count;
        Get.find<TabBarController>().setBadge(TabType.chat, totalUnread.value);
        // 更新会话列表
        Get.find<ChatController>().getConversationList();
      },
    );
    _initUnreadCount();
    _addListener();
  }

  /// 初始化时获取一次未读总数
  void _initUnreadCount() async {
    final res = await TencentImSDKPlugin.v2TIMManager.getConversationManager().getTotalUnreadMessageCount();
    if (res.code == 0) {
      totalUnread.value = res.data ?? 0;
      Get.find<TabBarController>().setBadge(TabType.chat, totalUnread.value);
      final to = res.data;
      logger.i('初始化未读消息数$to');
    }
  }

  /// 添加会话未读数监听器
  void _addListener() {
    TencentImSDKPlugin.v2TIMManager.getConversationManager().addConversationListener(listener: _listener);
    logger.i('未读数监听器注册成功');
  }

  /// 手动更新total
  Future<void> refreshUnreadCount() async {
    _initUnreadCount();
  }

  /// 移除监听器，防止重复注册
  @override
  void onClose() {
    TencentImSDKPlugin.v2TIMManager.getConversationManager().removeConversationListener(listener: _listener);
    super.onClose();
  }
}