using UnityEngine;
using QFramework;
using System;
using System.Text;
using System.Net.Sockets;
using System.IO;
using System.Threading.Tasks;
using System.Threading;
using System.Net.NetworkInformation;
using System.Net;

public class UDPUtility : IUtility
{
    public string udpAddress;
    public int udpPort;
    public UdpClient udpClient;
    public NetworkStream sendStream;
    public BindableProperty<bool> isOpenUDP = new BindableProperty<bool>(false);
    public bool isReceivedValue = false;
    public BindableProperty<string> receivedData = new BindableProperty<string>("");
    public BindableProperty<string> exceptionData = new BindableProperty<string>("");
    public Thread reciveT;
    public BindableProperty<bool> isTimeOut = new BindableProperty<bool>(false);

    public UDPUtility()
    {
        Debug.LogWarning("使用无参数构造udp时，需要手动开启udp服务");

    }
    public UDPUtility(string UDPAddress, int UDPPort)
    {
        this.udpAddress = UDPAddress;
        this.udpPort = UDPPort;
        StartUDPClient(UDPAddress, UDPPort);
    }

    public bool StartUDPClient(string ip, int port)
    {
        isTimeOut.Value = false;
        if (!isOpenUDP)
        {
            udpAddress = ip;
            udpPort = port;
            try
            {
                udpClient = new UdpClient(udpAddress, udpPort);
            }
            catch (Exception e)
            {
                exceptionData.Value = e.ToString();
                return false;
            }
            isOpenUDP.Value = true;
            reciveT = new Thread(RecciveMsg);
            reciveT.IsBackground = true;
            reciveT.Start();
            return true;
        }
        return false;
    }

    public void CloseUDPClient()
    {
        sendStream.Close();
        udpClient.Close();
        isOpenUDP.Value = false;
        reciveT.Abort();
    }

    public void sendData(string data)
    {
        if (isOpenUDP == false)
            return;
        Byte[] sendBytes = Encoding.Default.GetBytes(data);
        udpClient.Send(sendBytes, sendBytes.Length);
    }

    public void RecciveMsg()
    {
        string msg = "";
        //Debug.Log("StartReceiving!");
        while (isOpenUDP.Value)
        {
            try
            {
                IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
                Byte[] receiveBytes = udpClient.Receive(ref RemoteIpEndPoint);
                msg = Encoding.UTF8.GetString(receiveBytes);
                if (msg != "")
                {
                    receivedData.Value = msg;
                    isReceivedValue = true;
                }
            }
            catch (Exception e)
            {
                Debug.LogWarning(e);
                //断线发送异常
                isTimeOut.Value = true;
                exceptionData.Value = e.ToString();
                //break;
            }
        }
        Debug.Log("------------end While-------------");
    }

    /// <summary>
    /// 线程接收到消息后
    /// </summary>
    /// <returns>接收到的消息</returns>
    public string getReceivedValue()
    {
        if (isReceivedValue)
        {
            isReceivedValue = false;
            return receivedData.Value;
        }
        else
        {
            return "";
        }
    }

    public bool getTimeOutState()
    {
        return isTimeOut;
    }

    public bool IsReceivedMsg()
    {
        return sendStream.Length != 0;
    }
    public bool IsConnected()
    {
        return udpClient.Client.Connected;
    }

    /// <summary>
    /// 获取本机IP
    /// </summary>
    /// <returns>string :ip地址</returns>
    public string GetIP()
    {
        string output = "";

        foreach (NetworkInterface item in NetworkInterface.GetAllNetworkInterfaces())
        {
            NetworkInterfaceType _type1 = NetworkInterfaceType.Wireless80211;  //无线局域网适配器 

            if ((item.NetworkInterfaceType == _type1) && item.OperationalStatus == OperationalStatus.Up)
            {
                foreach (UnicastIPAddressInformation ip in item.GetIPProperties().UnicastAddresses)
                {
                    if (ip.Address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        output = ip.Address.ToString();
                    }
                }
            }
        }
        return output;
    }
}