using UnityEngine;
using QFrameworkCP;
using System;
using System.Text;
using System.Net.Sockets;
using System.Threading;
using System.Net.NetworkInformation;
using System.Text.RegularExpressions;

namespace JXSoft
{
    //统筹管理TCP的命令池以及相关链接信息
    public class TCPClientModel : DataEventModel
    {
        private TCPLinkState tcpState = TCPLinkState.NoIp;
        private string tcpAddress = "";
        private int tcpPort = 0;
        public string myAddress = "";
        protected override void OnInit()
        {  
            this.RegisterEvent<onLinkException>(e=> {
                setLinkState((int)TCPLinkState.LinkTimeOut);
                this.GetUtility<TCPClientUtility>().CloseTCPClient();
            });
            //注册重写发送事件
            this.RegisterEvent<RequestMsgEvent>(e => {
                if (this.GetUtility<TCPClientUtility>().isOpenTCP)
                {
                    this.GetUtility<TCPClientUtility>().sendData(e.req.toProtocolData());
                }
                else
                {
                    Debug.LogWarning("请先开启TCP链接");
                }
            });
        }
        public override void setLinkState(int linkStatus)
        {
            this.tcpState = (TCPLinkState)linkStatus;
            this.SendEvent(new LinkStateChangedEvent(linkStatus));
        }

        public override int getLinkState()
        {
            return (int)this.tcpState;
        }

        /// <summary>
        /// 设置对应IP，设置完毕后，自动进入链接状态（此时需要用户手动监听是否要进行链接服务器）
        /// </summary>
        /// <param name="ip">ip地址</param>
        /// <param name="port">端口号</param>
        public void setIP(string ip,int port) {
            this.tcpAddress = ip;
            this.tcpPort = port;
            string patten = @"(([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])";
            //ip校验
            if (Regex.IsMatch(ip, patten) && port < 65535)
            {
                setLinkState((int)TCPLinkState.Linking);
            }
            else {
                Debug.LogWarning("ip格式错误");
            }
        }
        /// <summary>
        /// 与服务端建立链接
        /// </summary>
        public void linkServer() {
            if (tcpState == TCPLinkState.Linking)
            {
                if (!this.GetUtility<TCPClientUtility>().isOpenTCP) {
                    
                    bool isSuccess = this.GetUtility<TCPClientUtility>().StartTCPClient(tcpAddress, tcpPort);
                    if (isSuccess) {
                        setLinkState((int)TCPLinkState.LinkSucess);
                    }
                    else
                    {
                        setLinkState((int)TCPLinkState.LinkFaild);
                    }
                }
            }
        }
        /// <summary>
        /// 与服务端断开链接
        /// </summary>
        public void closeServer()
        {
            if (tcpState == TCPLinkState.LinkSucess)
            {
                if (this.GetUtility<TCPClientUtility>().isOpenTCP)
                {

                    this.GetUtility<TCPClientUtility>().CloseTCPClient();
                    setLinkState((int)TCPLinkState.NoIp);
                }
            }
        }

        
    }

    #region enum
    public enum TCPLinkState
    {
        NoIp = 0,
        Linking = 1,
        LinkFaild = 2,
        LinkSucess = 3,
        LinkTimeOut = 4
    }

    #endregion

    #region event
    public struct onLinkException
    {
        public string exceptionMsg;
        public onLinkException(string exceptionMsg_)
        {
            exceptionMsg = exceptionMsg_;
        }
    }
    #endregion

    #region util
    public class TCPClientUtility : IUtility
    {
        public string tcpAddress;
        public int tcpPort;
        public TcpClient tcpClient;
        public NetworkStream sendStream;
        public bool isOpenTCP = false;
        public bool isReceivedValue = false;
        public string receivedData = "";
        public string exceptionData = "";

        public Thread reciveT;
        public bool isTimeOut = false;

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

        }
        public TCPClientUtility(string tcpAddress, int tcpPort)
        {
            this.tcpAddress = tcpAddress;
            this.tcpPort = tcpPort;
            this.isTimeOut = false;
            StartTCPClient();
        }
        public bool StartTCPClient()
        {
            return StartTCPClient(tcpAddress, tcpPort);
        }
        public bool StartTCPClient(string ip, int port)
        {
            isTimeOut = false;
            if (!isOpenTCP)
            {
                tcpAddress = ip;
                tcpPort = port;
                try
                {
                    tcpClient = new TcpClient(tcpAddress, tcpPort);
                    sendStream = tcpClient.GetStream();
                }
                catch (Exception e)
                {
                    exceptionData = e.ToString();
                    return false;
                }
                isOpenTCP = true;
                reciveT = new Thread(RecciveMsg);
                reciveT.IsBackground = true;
                reciveT.Start();
                return true;
            }
            return false;
        }

        public void CloseTCPClient()
        {
            if (tcpClient.Connected)
            {
                sendStream.Close();
                tcpClient.Close();
                isOpenTCP = false;
                reciveT.Abort();
            }
        }

        public void sendData(string data)
        {
            if (isOpenTCP == false)
                return;
            byte[] sendBytes = Encoding.Default.GetBytes(data);
            sendStream.Write(sendBytes, 0, sendBytes.Length);
        }

        public void RecciveMsg()
        {
            byte[] receiveBuff = new byte[1024];
            int reviceLength = 0;
            string msg = "";
            while (isOpenTCP)
            {
                try
                {
                    reviceLength = tcpClient.Client.Receive(receiveBuff);
                    msg = Encoding.UTF8.GetString(receiveBuff, 0, reviceLength);
                    if (msg != "")
                    {
                        receivedData = msg;
                        isReceivedValue = true;
                    }
                }
                catch (Exception e)
                {
                    Debug.LogWarning(e);
                    //断线发送异常
                    isTimeOut = true;
                    exceptionData = 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;
            }
            else
            {
                return "";
            }
        }

        public bool getTimeOutState()
        {
            return isTimeOut;
        }

        public bool IsReceivedMsg()
        {
            return sendStream.Length != 0;
        }
        public bool IsConnected()
        {
            return tcpClient.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;
        }
    }
    #endregion
}