using UnityEngine;
using System.Collections;
//引入库
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Collections.Generic;
using LitJson;

public class TClient : MonoBehaviour
{
    string editString = "hello wolrd"; //编辑框文字

    public delegate void OnMessagedDelegate(string data);
    public OnMessagedDelegate OnMessaged;
    Socket serverSocket; //服务器端socket
    IPAddress ip; //主机ip
    IPEndPoint ipEnd;
    string recvStr; //接收的字符串
    string sendStr; //发送的字符串
    byte[] recvData = new byte[1024]; //接收的数据，必须为字节
    byte[] sendData = new byte[1024]; //发送的数据，必须为字节
    int recvLen; //接收的数据长度
    Thread connectThread; //连接线程

    public static TClient Instance;
    public bool isClient=false;
    //初始化
  public   void InitSocket(string text = "127.0.0.1")
    {
        if(isClient)
        {
            SocketQuit();
        }
        isClient = true;
        Debug.Log(text);
        //定义服务器的IP和端口，端口与服务器对应
        ip = IPAddress.Parse(text); //可以是局域网或互联网ip，此处是本机
        ipEnd = new IPEndPoint(ip, 50001);


        //开启一个线程连接，必须的，否则主线程卡死
        connectThread = new Thread(new ThreadStart(SocketReceive));
        connectThread.Start();
    }
    Queue<string> queue =new Queue<string>();
   public  void SocketConnet()
    {
        if (serverSocket != null)
            serverSocket.Close();
        //定义套接字类型,必须在子线程中定义
        serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        //连接
        serverSocket.Connect(ipEnd);

        //输出初次连接收到的字符串
        //    recvLen = serverSocket.Receive(recvData);
        //  recvStr = Encoding.ASCII.GetString(recvData, 0, recvLen);
        //    print(recvStr);
        //  if(queue!=null)
        //  {

        //      queue.Enqueue(recvStr);
        //   }
    }

    public static byte[] int2Bytes(int i)
    {
        byte[] b = new byte[4];
        b[0] = (byte)i; //将int类型的最后8位赋值给0号位。强转是将高位去掉
        b[1] = (byte)(i >> 8);
        b[2] = (byte)(i >> 16);
        b[3] = (byte)(i >> 24);
        return b;
    }
    public void SocketSend(string sendStr)
    {
        //清空发送缓存
        sendData = new byte[1024];
        //数据类型转换
        sendData = Encoding.ASCII.GetBytes(sendStr);
        byte[] bb = int2Bytes(sendData.Length);
        serverSocket.Send(bb, bb.Length, SocketFlags.None);
        //发送
        serverSocket.Send(sendData, sendData.Length, SocketFlags.None);
    }

    void SocketReceive()
    {
        SocketConnet();
        //不断接收服务器发来的数据
        while (true)
        {
            byte[] recvBytes = new byte[4];
            int bodyLength = serverSocket.Receive(recvBytes, 0, recvBytes.Length, SocketFlags.None);
            int baotou = TServerC.bytes2Int(recvBytes);

            //对data清零
            recvData = new byte[baotou];
            //获取收到的数据的长度
            recvLen = 0;

            while (recvLen != recvData.Length)
            {
                //  Debug.Log("准备接收==>" + recvLen);
                recvLen += serverSocket.Receive(recvData, recvLen, recvData.Length - recvLen, SocketFlags.None);
                //  Debug.Log("server 接收到Client 长度==>" + recvLen);
            }
            if (recvLen == 0)
            {
                SocketQuit();
                continue;
            }
            recvStr = Encoding.ASCII.GetString(recvData, 0, recvLen);
            queue.Enqueue(recvStr);
        }
    }

   public  void SocketQuit()
    {

        //关闭线程
        if (connectThread != null)
        {
            connectThread.Interrupt();
            connectThread.Abort();
        }
        //最后关闭服务器
        if (serverSocket != null)
            serverSocket.Close();
        isClient = false;
    }

    // Use this for initialization
    void Start()
    {
        Instance = this;
        //InitSocket();
    }

    void OnGUI()
    {
       // editString = GUI.TextField(new Rect(10, 10, 100, 20), editString);
       // if (GUI.Button(new Rect(10, 30, 60, 20), "send"))
       //     SocketSend(editString);
    }

    // Update is called once per frame
    void Update()
    {

        if (queue.Count>0)
        {
            
            string str = queue.Dequeue();
            Debug.Log("Str接收===："+str);
            if (OnMessaged != null)
            {
                OnMessaged(str);
            }

        }
        // SocketSend("连接上了12312321321");
    }

    //程序退出则关闭连接
    void OnApplicationQuit()
    {
        SocketQuit();
    }
}