using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Management;
using System.Net;

namespace Client
{
    public class ClientInfo
    {
        public string MacAddr { get; set; }
        public string Ipv4 { get; set; }
        public string Name { get; set; }
    }
    public class ClientInfoUtil {
        /// <summary>  
        /// 获取本机MAC地址  
        /// </summary>  
        /// <returns>本机MAC地址</returns>  
        public static string GetMacAddress()
        {
            try
            {
                string strMac = string.Empty;
                ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection moc = mc.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    if ((bool)mo["IPEnabled"] == true)
                    {
                        strMac = mo["MacAddress"].ToString();
                    }
                }
                moc = null;
                mc = null;
                return strMac;
            }
            catch
            {
                return "unknown";
            }
        }
        /// <summary>  
        /// 操作系统的登录用户名  
        /// </summary>  
        /// <returns>系统的登录用户名</returns>  
        public static string GetUserName()
        {
            try
            {
                return $"{Environment.MachineName}\\{Environment.UserName}";
                //string strUserName = string.Empty;
                //ManagementClass mc = new ManagementClass("Win32_ComputerSystem");
                //ManagementObjectCollection moc = mc.GetInstances();
                //foreach (ManagementObject mo in moc)
                //{
                //    strUserName = mo["UserName"].ToString();
                //}
                //moc = null;
                //mc = null;
                //return strUserName;
            }
            catch
            {
                return "unknown";
            }
        }
        /// <summary>  
        /// 获取客户端内网IPv4地址  
        /// </summary>  
        /// <returns>客户端内网IPv4地址</returns>  
        public static string GetClientLocalIPv4Address()
        {
            string strLocalIP = string.Empty;
            try
            {
                IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName());
                IPAddress ipAddress = ipHost.AddressList[0];
                strLocalIP = ipAddress.ToString();
                return strLocalIP;
            }
            catch
            {
                return "unknown";
            }
        }
    }
}