using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.Windows.Forms;

namespace NetOpenVPNGUI
{
    class Runner
    {
        private NotifyIcon trayIcon;
        private UdpClient net_send;
        private IPEndPoint net_send_port;
        private UdpClient net_gets;
        private IPEndPoint net_gets_port;
        public Runner()
        {
            this.trayIcon = new System.Windows.Forms.NotifyIcon();
            this.start();
            this.draw_icon(false);
            if (!this.check_service("Apache2.2"))
                this.run_service("Apache2.2");
            else
                this.draw_icon(true);
            this.wait();
        }

        private void wait()
        {
            while (true)
            {
                System.Threading.Thread.Sleep(100);
            }
        }

        private void draw_icon(bool p)
        {
            this.trayIcon.Visible = true;
            if(p)
                this.trayIcon.Icon = Resources.icon_ok;
            else
                this.trayIcon.Icon = Resources.icon_no;
        }

        private void run_service(string p)
        {
            byte[] data = Encoding.UTF8.GetBytes("service start " + p);
            this.net_send.Send(data, data.Length, this.net_send_port);
            String ret = Encoding.UTF8.GetString(net_gets.Receive(ref net_gets_port));
            this.trayIcon.BalloonTipIcon = ToolTipIcon.Info;
            if (Boolean.Parse(ret))
            {
                this.trayIcon.BalloonTipText = "Service " + p + " Started";
                this.draw_icon(true);
            }
            else
            {
                this.trayIcon.BalloonTipText = "Service " + p + " NOT Started";
                this.draw_icon(false);
            }
            
            this.trayIcon.ShowBalloonTip(200);
            
        }

        private bool check_service(string p)
        {
            byte[] data = Encoding.UTF8.GetBytes("service status " + p);
            this.net_send.Send(data, data.Length, this.net_send_port);
            int ret = int.Parse(Encoding.UTF8.GetString(net_gets.Receive(ref net_gets_port)));
            if (ret == 1)
                return true;
            return false;
        }

        private void start()
        {
            this.net_send = new UdpClient();
            this.net_send_port = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 34523);
            this.net_gets = new UdpClient(34524);
            this.net_gets_port = new IPEndPoint(IPAddress.Loopback, 0);
        }
    }
}