using UnityEngine;
using UnityEngine.UI;
using System.Net.Sockets;
using System.Net;
using System.Text;
using System.Threading;

public class TouchClient : MonoBehaviour
{
    private TcpClient client;
    private NetworkStream stream;
    private bool isConnected = false;

    private UdpClient udpListener;
    private Thread udpThread;

    public Transform background;
    private string currentPage = "首页";

    void Start()
    {
        Screen.SetResolution(1920, 1080, false);

        udpListener = new UdpClient(9999);
        udpThread = new Thread(ListenForBroadcast);
        udpThread.Start();

        Debug.Log("触摸端等待显示端广播...");

        ShowPage("首页");
    }

    private void ListenForBroadcast()
    {
        IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 9999);

        while (!isConnected)
        {
            byte[] data = udpListener.Receive(ref endPoint);
            string serverIp = Encoding.UTF8.GetString(data);

            Debug.Log("发现显示端IP: " + serverIp);
            ConnectToServer(serverIp, 8888);
        }
    }

    private void ConnectToServer(string ip, int port)
    {
        try
        {
            client = new TcpClient();
            client.Connect(ip, port);
            stream = client.GetStream();
            isConnected = true;
            Debug.Log("触摸端已连接到显示端: " + ip);
        }
        catch
        {
            Debug.Log("连接显示端失败");
        }
    }

    private void SendMessageToServer(string msg)
    {
        if (isConnected && stream != null)
        {
            byte[] data = Encoding.UTF8.GetBytes(msg);
            stream.Write(data, 0, data.Length);
            Debug.Log("发送指令: " + msg);
        }
    }

    public void OnButtonClick_Page(string pageName)
    {
        ShowPage(pageName);
        SendMessageToServer("Page:" + pageName);
    }

    public void OnButtonClick_Anim(string animName)
    {
        SendMessageToServer("Anim:" + animName);
    }

    // Slider 绑定的方法
    public void OnSliderChanged(Slider slider)
    {
        float progress = slider.value; // 0-100
        SendMessageToServer("Progress:" + progress.ToString("F2"));
    }

    private void ShowPage(string pageName)
    {
        foreach (Transform child in background)
        {
            child.gameObject.SetActive(child.name == pageName);
        }
        currentPage = pageName;
        Debug.Log($"切换到页面：{pageName}");
    }

    private void OnApplicationQuit()
    {
        udpListener?.Close();
        stream?.Close();
        client?.Close();
    }
}