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

namespace Tango.Transport.Helpers
{
    public static class IPAddressHelper
    {
        public static string GetLocalIpAddress()
        {
            foreach (var netI in NetworkInterface.GetAllNetworkInterfaces())
            {
                if (netI.NetworkInterfaceType != NetworkInterfaceType.Wireless80211 &&
                    (netI.NetworkInterfaceType != NetworkInterfaceType.Ethernet ||
                        netI.OperationalStatus != OperationalStatus.Up)) continue;
                foreach (var uniIpAddrInfo in netI.GetIPProperties().UnicastAddresses.Where(x => netI.GetIPProperties().GatewayAddresses.Count > 0))
                {

                    if (uniIpAddrInfo.Address.AddressFamily == AddressFamily.InterNetwork &&
                        uniIpAddrInfo.AddressPreferredLifetime != uint.MaxValue)
                        return uniIpAddrInfo.Address.ToString();
                }
            }
            return null;
        }
    }
}