using System;
using System.Net.NetworkInformation;
using System.Threading.Tasks;

namespace BITable
{
    public static class Util
    {
        public static bool IsPingable(string destinationIPAddress, out long pingTime, int timeOut = 500)
        {
            var pingTask = Task.Factory.StartNew(async () =>
            {
                Ping pinger = new Ping();
                try
                {
                    PingReply reply = await pinger.SendPingAsync(destinationIPAddress, timeOut);
                    return reply;
                }
                catch (Exception)
                {
                    return null;
                }
                finally
                {
                    pinger.Dispose();
                }
            });

            var pingResult = pingTask.Result.Result;
            if (pingResult != null && pingResult.Status == IPStatus.Success)
            {
                pingTime = pingResult.RoundtripTime;
                return true;
            }
            else
            {
                pingTime = -1;
                return false;
            }
        }
    }
}