import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:star_lock/appRouters.dart';
import 'package:star_lock/app_settings/app_settings.dart';
import 'package:star_lock/tools/storage.dart';

class CallKitHandler {
  static const MethodChannel _channel = MethodChannel('com.starlock/callkit');
  static bool _isInitialized = false;

  /// 初始化监听，无需context
  static void setupListener() async {
    if (_isInitialized) {
      print('CallKitHandler.setupListener 已初始化，跳过');
      return;
    }
    _isInitialized = true;
    print('CallKitHandler.setupListener 初始化，准备拉取pending事件');
    // 启动时主动拉取pending事件
    final pendingEvent =
        await _channel.invokeMethod<String>('get_pending_event');
    print('CallKitHandler 拉取到pendingEvent: $pendingEvent');
    if (pendingEvent == 'callkit_answered') {
      print('启动时拉取到callkit_answered，跳转到对讲页面');
      // 如需跳转页面可在此处实现
    } else if (pendingEvent == 'callkit_declined') {
      print('启动时拉取到callkit_declined，返回主页面');
    } else {
      print('启动时无pending事件');
    }
    // 注册实时监听
    _channel.setMethodCallHandler((call) async {
      print('CallKitHandler 收到原生事件: ${call.method}');
      if (call.method == 'callkit_answered') {
        print('跳转到对讲页面');
        String currentRoute = Get.currentRoute;
        print('当前路由: $currentRoute');
        if (currentRoute != Routers.h264View) {
          Get.toNamed(
            Routers.h264View,
          );
        }
      } else if (call.method == 'callkit_declined') {
        print('返回主页面');
      } else if (call.method == 'voip_token') {
        print('收到VoIP Token: ${call.arguments}');
        if (call.arguments != null) {
          await Storage.setString(voipToken, call.arguments);
        }
      } else {
        print('收到未知事件: ${call.method}');
      }
    });
    print('CallKitHandler.setupListener 监听已注册');
  }

  /// 通知原生端结束CallKit通话
  static Future<void> endCall() async {
    print('CallKitHandler.endCall 通知原生端结束通话');
    await _channel.invokeMethod('end_call');
  }

  /// 主动获取iOS VoIP Token
  static Future<String?> getVoipToken() async {
    try {
      final String? token =
          await _channel.invokeMethod<String>('get_voip_token');
      print('CallKitHandler.getVoipToken 拉取到token: $token');
      if (token != null) {
        await Storage.setString(voipToken, token);
      }

      return token;
    } catch (e) {
      print('CallKitHandler.getVoipToken 异常: $e');
      return null;
    }
  }
}