using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace Mesnac.Communication
{
    public class SyncSocketClient
    {
        private static SyncSocketClient instance = null;
        /// <summary>
        /// 客户端连接Socket
        /// </summary>
        private Socket clientSocket;
        /// <summary>
        /// 连接点
        /// </summary>
        private IPEndPoint hostEndPoint;
        /// <summary>
        /// 
        /// </summary>
        /// <param name="hostName">服务端地址{IP地址}</param>
        /// <param name="port">端口号</param>
        public SyncSocketClient(String hostName, Int32 port)
        {
            //IPHostEntry host = Dns.GetHostEntry(hostName);
            //IPAddress[] addressList = host.AddressList;
            //this.hostEndPoint = new IPEndPoint(addressList[addressList.Length - 1], port);
            //this.clientSocket = new Socket(this.hostEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
        }
        /// <summary>
        /// 连接服务端
        /// </summary>
        public string Send(String hostName, Int32 port, string message)
        {

            string receiveMsg = "";
            IPHostEntry host = Dns.GetHostEntry(hostName);
            IPAddress[] addressList = host.AddressList;
            IPEndPoint hostPoint = new IPEndPoint(addressList[addressList.Length - 1], port);
            using (clientSocket = new Socket(hostPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp))
            {

                clientSocket.Connect(hostPoint);
                clientSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 5000);
                byte[] sendMsg = Encoding.GetEncoding("GBK").GetBytes(message);
                clientSocket.Send(sendMsg);
                //设置超时
                //clientSocket.ReceiveTimeout = 5000;
                byte[] receiveByte = new byte[1024];
                int count = 0;
                try
                {
                    count = clientSocket.Receive(receiveByte, receiveByte.Length, 0);//接受数据
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message + "接受信息超时！");
                }
                receiveMsg += Encoding.GetEncoding("GBK").GetString(receiveByte, 0, count);//转换为GBK格式的字符串
                receiveMsg = receiveMsg.Replace("\n\r", "");
                Console.WriteLine("接受信息:" + receiveMsg);
            }
            return receiveMsg;
        }

        /// <summary>
        /// TCP通信服务实例
        /// </summary>
        public static SyncSocketClient Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = new SyncSocketClient("", 3666);
                }
                return instance;
            }
        }
    }
}