using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Runtime.Serialization.Formatters.Binary;
using System.Threading;
using UnityEngine;
using UnityEngine.UI;

public class GetRemoteImage : MonoBehaviour
{
    private int port;
    private TcpClient client;
    private TcpListener server;
    private NetworkStream mainStream;

    public bool isImageCanUse;
    private Thread Listening;
    private Thread GetImage;

    public Image image;
    public Button buttonClose;


    private System.Drawing.Image local_image;
    // Use this for initialization
    void Start()
    {
        local_image = System.Drawing.Image.FromFile(Application.dataPath + "/Image/1.jpg");
        isImageCanUse = false;
        port = 50002;
        client = new TcpClient();
        Listening = new Thread(StartListening);
        GetImage = new Thread(ReceiveImage);
        server = new TcpListener(IPAddress.Any, port);
        Listening.Start();


        Texture2D texture = new Texture2D(local_image.Width, local_image.Height);
        System.Drawing.ImageConverter imageConverter = new System.Drawing.ImageConverter();
        byte[] imageData = (byte[])imageConverter.ConvertTo(local_image, typeof(byte[]));
        texture.LoadImage(imageData);
        image.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.0f, 0.0f));
    }

    // Update is called once per frame
    void Update()
    {
        if (isImageCanUse)
        {
            Texture2D texture = new Texture2D(local_image.Width, local_image.Height);
            System.Drawing.ImageConverter imageConverter = new System.Drawing.ImageConverter();
            byte[] imageData = (byte[])imageConverter.ConvertTo(local_image, typeof(byte[]));
            texture.LoadImage(imageData);
            image.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
            print(1);
        }
    }

    private void StartListening()
    {
        while (!client.Connected)
        {
            server.Start();
            client = server.AcceptTcpClient();
        }
        GetImage.Start();
    }

    private void StopListening()
    {
        server.Stop();
        client = null;
        if (Listening.IsAlive)
        {
            Listening.Abort();
        }
        if (GetImage.IsAlive)
        {
            GetImage.Abort();
        }
    }

    private void ReceiveImage()
    {
        BinaryFormatter binaryFormatter = new BinaryFormatter();
        while (client.Connected)
        {
            if (client.Available > 0)
            {
                mainStream = client.GetStream();
                //pictureBox1.Image = (Image)binaryFormatter.Deserialize(mainStream);
                isImageCanUse = false;
                local_image = (System.Drawing.Image)binaryFormatter.Deserialize(mainStream);
                isImageCanUse = true;
            }
        }
    }
}