using UnityEngine;
using System;
using uPLibrary.Networking.M2Mqtt;
using uPLibrary.Networking.M2Mqtt.Messages;
using System.Threading.Tasks;

public class MqttHslClient : MonoBehaviour
{
    private MqttClient mqttClient;
    public string brokerAddress = "172.16.1.104";//代理的地址
    public int brokerPort = 8083;//代理端口
    private string[] topic = { "car1", "car2", "car3", "car4", "car5" }; // 订阅的多个主题

    async void Start()
    {
        await Task.Run(() =>
        {
            ConnectToMqttServer();
        });

    }
    public void ConnectToMqttServer()
    {
        for (int i = 0; i < topic.Length; i++)
        {
            Debug.Log(topic[i]);
        }
        // 创建 MQTT 客户端实例
        mqttClient = new MqttClient(brokerAddress, brokerPort, false, null, null, MqttSslProtocols.None);

        // 注册消息处理函数
        mqttClient.MqttMsgPublishReceived += OnMqttMsgPublishReceived;

        // 连接到 MQTT 代理
        try
        {
            mqttClient.Connect(Guid.NewGuid().ToString());
        }
        catch (Exception ex)
        {
            Debug.LogError("连接异常"+ex.Message);
        }

        // 订阅多个主题

        byte[] qosLevels = { MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE, MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE, MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE, MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE, MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE };
        mqttClient.Subscribe(topic, qosLevels);
    }
    private void OnMqttMsgPublishReceived(object sender, MqttMsgPublishEventArgs e)
    {
        string message = System.Text.Encoding.UTF8.GetString(e.Message);
        Debug.Log($"Received message from topic {e.Topic}: {message}");
        // 处理接收到的消息
    }
    /// <summary>
    /// 结束时释放内存
    /// </summary>
    void OnDestroy()
    {
        if (mqttClient != null && mqttClient.IsConnected)
        {
            mqttClient.Disconnect();
        }
    }
}