using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace UDPClient
{
    public partial class Frm_Client : Form
    {
        Icon ico1 = new Icon("icon.ico");
        Icon ico2 = new Icon("clear.ico");
        bool is1;
        bool isTwinkle;
        static UdpClient client;
        static IPEndPoint endpoint;
        static System.Windows.Forms.Timer tmr = new System.Windows.Forms.Timer();

        public Frm_Client()
        {
            InitializeComponent();
        }

        private void Frm_Client_Load(object sender, EventArgs e)
        {
            client = new UdpClient(new IPEndPoint(IPAddress.Any, 25333));
            endpoint = new IPEndPoint(IPAddress.Any, 0);
            //启动客户端监听
            Thread t = new Thread(new ThreadStart(ClientThread));
            t.Start();
            //启动Web监听
            Thread w = new Thread(new ThreadStart(WebListen));
            w.Start();
            //初始化Timer
            tmr.Interval = 390;
            tmr.Tick += tmr_Tick;
            tmr.Enabled = true;
        }

        void tmr_Tick(object sender, EventArgs e)
        {
            if (!isTwinkle) return;
            if (is1)
            {
                is1 = false;
                notifyIcon.Icon = ico2;
            }
            else
            {
                is1 = true;
                notifyIcon.Icon = ico1;
            }
        }
        public static IPAddress GetHostIP()
        {
            string strHostName = Dns.GetHostName();  //得到本机的主机名
            IPHostEntry ipEntry = Dns.GetHostEntry(strHostName); //取得本机IP
            foreach (var item in ipEntry.AddressList)
            {
                if (!item.IsIPv6LinkLocal)
                {
                    return item;
                }
            }
            return null;
        }

        private static void WebListen()
        {
            try
            {
                HttpListener listerner = new HttpListener();
                listerner.AuthenticationSchemes = AuthenticationSchemes.Anonymous;//指定身份验证 Anonymous匿名访问
                listerner.Prefixes.Add("http://127.0.0.1:25330/web/");
                listerner.Start();
                Console.WriteLine("WebServer Start Successed.......");
                while (true)
                {
                    //等待请求连接
                    //没有请求则GetContext处于阻塞状态
                    HttpListenerContext ctx = listerner.GetContext();
                    ctx.Response.StatusCode = 200;//设置返回给客服端http状态代码
                    string username = ctx.Request.QueryString["username"];
                    if (username != null && username.Length > 0)
                    {
                        IPAddress addr = GetHostIP();
                        string str = username + " " + (addr == null ? "null" : addr.ToString()) + " 25333";
                        Console.WriteLine(str);
                        byte[] buf = Encoding.Default.GetBytes(str);
                        client.Send(buf, buf.Length, new IPEndPoint(IPAddress.Parse("127.0.0.1"), 25433));
                    }
                    ctx.Response.Close();
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }

        private void ClientThread()
        {
            try
            {
                Console.WriteLine("客户端开始监听...");
                while (true)
                {
                    byte[] buf = client.Receive(ref endpoint);
                    string msg = Encoding.Default.GetString(buf);
                    Console.WriteLine("收到数据: " + msg);
                    isTwinkle = true;
                    notifyIcon.ShowBalloonTip(1000,"四喜消息提示","您有新的提醒 请注意查收!",ToolTipIcon.Info);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
                client.Close();
            }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            isTwinkle = !isTwinkle;
        }

        private void notifyIcon_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            isTwinkle = false;
            notifyIcon.Icon = ico1;
        }

    }
}