using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Runtime.InteropServices;

namespace Infrastructure.Extensions
{
    public static class HelperExtensions
    {
        public static string GetMacAddress(this Helper helper)
        {
            var physicalAddress = NetworkInterface
                .GetAllNetworkInterfaces()
                .Where(nic => nic.OperationalStatus == OperationalStatus.Up && nic.NetworkInterfaceType != NetworkInterfaceType.Loopback)
                .Select(nic => nic.GetPhysicalAddress().ToString())
                .FirstOrDefault(o => !string.IsNullOrEmpty(o));
            return physicalAddress.ToLower();
        }

        public static List<IPAddress> GetLocalIPList(this Helper helper)
        {
            var ipList = new List<IPAddress>();
            foreach (var ni in NetworkInterface.GetAllNetworkInterfaces())
            {
                foreach (var ua in ni.GetIPProperties().UnicastAddresses)
                {
                    if (ua.Address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        ipList.Add(ua.Address);
                    }
                }
            }
            return ipList;
        }

        public static IPAddress GetLocalIP(this Helper helper)
        {
            var ipList = new List<IPAddress>();
            foreach (var ni in NetworkInterface.GetAllNetworkInterfaces())
            {
                foreach (var ua in ni.GetIPProperties().UnicastAddresses)
                {
                    if (ua.Address.AddressFamily == AddressFamily.InterNetwork)
                    {
                        ipList.Add(ua.Address);
                    }
                }
            }
            var ip = ipList.Where(o => !o.ToString().StartsWith("10.") && o.ToString().StartsWith("172.") && o.ToString().StartsWith("192.") && o.ToString().StartsWith("127."))
                .FirstOrDefault() ?? ipList.FirstOrDefault(o => !o.ToString().StartsWith("192.168."))
                ?? ipList.FirstOrDefault(o => !o.ToString().StartsWith("192."))
                ?? ipList.FirstOrDefault();
            return ip;
        }

        public static string GetRunTime(this Helper helper)
        {
            var os = "";
            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
            {
                os += "windows";
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            {
                os += "linux";
            }
            else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
            {
                os += "osx";
            }
            os += $"-{RuntimeInformation.OSArchitecture.ToString().ToLower()}";
            return os;
        }
    }
}