import 'package:flutter/services.dart';

class AmapService {
  static final AmapService _instance = AmapService._internal();

  /// 获取单例
  factory AmapService() => _instance;

  // 方法通道
  final MethodChannel _methodChannel = const MethodChannel(
    'com.yunqiinnovation.amap_service',
  );

  // 事件通道 - 简化为只使用数据和状态通道
  late final EventChannel _dataEventChannel;
  late final EventChannel _statusEventChannel;

  // 事件流
  late final Stream<dynamic> _dataStream;
  late final Stream<dynamic> _statusStream;

  // 获取事件流
  Stream<dynamic> get onDataReceived => _dataStream;

  // 状态流直接传递原始数据
  Stream<dynamic> get onStatusUpdated => _statusStream;

  // 内部构造函数
  AmapService._internal() {
    _dataEventChannel = const EventChannel(
      'com.yunqiinnovation.amap_service/data_events',
    );
    _statusEventChannel = const EventChannel(
      'com.yunqiinnovation.amap_service/status_events',
    );

    // 初始化事件流
    _dataStream = _dataEventChannel.receiveBroadcastStream();
    _statusStream = _statusEventChannel.receiveBroadcastStream();
  }
  // 初始化SDK
  Future<void> initSdk({String? iosKey, String? androidKey}) async {}

  // 定位初始化
  Future<void> initLocation() async {}

  // 开始定位
  Future<void> startLocation() async {}

  // 监听定位返回位置
  Stream<dynamic> locationStream() {
    return _dataStream;
  }

  // 停止定位
  Future<void> stopLocation() async {}

  // 销毁
  Future<void> dispose() async {}
}