import 'dart:io' as io;
import 'dart:typed_data';
// import 'dart:html' as html;

import 'package:wukongimfluttersdk/common/logs.dart';
import 'package:wukongimfluttersdk/manager/my_wk_socket_base.dart';

class MyWKSocket implements MyWkSocketBase {
  io.Socket? _socket; // 将 _socket 声明为可空类型
  bool _isListening = false;

  static MyWKSocket? _instance;
  MyWKSocket._internal(this._socket);

  factory MyWKSocket.newSocket(io.Socket socket) {
    _instance ??= MyWKSocket._internal(socket);
    return _instance!;
  }

  @override
  void close() {
    _isListening = false;
    _instance = null;
    try {
      if (_socket != null) {
        _socket?.close();
        _socket?.destroy();
      }
    } finally {
      _socket = null; // 现在可以将 _socket 设置为 null
    }
  }

  @override
  void listen({
    required Function(Uint8List data) onData,
    required Function() onOpen,
    required Function() error,
  }) {
    if (!_isListening && _socket != null) {
      _socket!.listen(onData, onError: (err) {
        Logs.debug('socket断开了${err.toString()}');
      }, onDone: () {
        close(); // 关闭和重置 Socket 连接
        error();
      });
      _isListening = true;
    }
  }

  @override
  send(Uint8List data) {
    try {
      if (_socket != null) {
        _socket?.add(data); // 使用安全调用操作符
      }
    } catch (e) {
      Logs.debug('发送消息错误$e');
    }
  }
}