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

namespace DoAn.Core
{
    public class SocketServerManager
    {
        private string ip;
        private int port;
        private Socket socketWatch = null;
        private Socket acceptSocket = null;
        private Thread threadWatch = null;

        public delegate void GetMessageDelegate<T>(T str1);

        public event GetMessageDelegate<string> GetMessageEvent;

        public SocketServerManager(string ip,int port)
        {
            this.ip = ip;
            this.port = port;            
        }

        public bool ListerSocket()
        {
            try
            {
                socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse(ip), port);
                socketWatch.Bind(endPoint);
                socketWatch.Listen(20);
                threadWatch = new Thread(GetMessage);
                threadWatch.Start();
            }
            catch (Exception)
            {
                return false;
            }
            return true;
        }

        public void SendMessage(string message)
        {
            byte[] arrSendMsg = Encoding.UTF8.GetBytes(message);
            //向客户端发送字节数组信息
            acceptSocket.Send(arrSendMsg);
        }

        private void GetMessage()
        {
            while (true)
            {
                acceptSocket = socketWatch.Accept();
                Thread th = new Thread(() =>
                {
                    while (true)
                    {
                        byte[] arrServerRecMsg = new byte[1024];
                        int length = acceptSocket.Receive(arrServerRecMsg);
                        string strSRecMsg = Encoding.UTF8.GetString(arrServerRecMsg, 0, length);
                        if (strSRecMsg.Length > 0)
                        {
                            if(null!=GetMessageEvent)
                                GetMessageEvent(strSRecMsg);
                        }
                    }
                });
                th.IsBackground = true;
                th.Start();
            }
        }

    }
}