/*******************************************************************************
 * Copyright(c) 2012 dongke All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：SystemAPI.cs
 *      2.功能描述：取得本地机器相关信息，如：机器名、IP地址等
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      欧阳涛          2013/07/14          1.00            新建
 *******************************************************************************/

using System;
using System.Net;
using System.Management;

namespace Dongke.IBOSS.PRD.Basics.Library
{
    /// <summary>
    /// 取得本地机器相关信息，如：机器名、IP地址等
    /// </summary>
    public class SystemAPI
    {
        #region 公开属性
        /// <summary>
        /// 取得本地计算机名称
        /// </summary>
        public static string ComputerName
        {
            get
            {
                return System.Windows.Forms.SystemInformation.ComputerName;
            }
        }

        /// <summary>
        /// 取得当前机器所处的域名
        /// </summary>
        public static string DomainName
        {
            get
            {
                return System.Windows.Forms.SystemInformation.UserDomainName;
            }
        }

        /// <summary>
        /// 取得当前登录系统的用户名称
        /// </summary>
        public static string UserName
        {
            get
            {
                return System.Windows.Forms.SystemInformation.UserName;
            }
        }

        /// <summary>
        /// 取得当前计算机的MAC地址
        /// </summary>
        public static string MacAddress
        {
            get
            {
                string mac = "00:00:00:00:00:00";
                try
                {
                    ManagementObjectCollection moc = ManagementObjectCollection;
                    if (moc == null)
                    {
                        return null;
                    }
                    foreach (ManagementObject managementObject in moc)
                    {
                        if (managementObject["IPAddress"] != null)
                        {
                            // 因为MAC地址可能存在多个，优先返回存在IP地址的MAC地址
                            mac = managementObject["MacAddress"].ToString();
                            break;
                        }
                    }
                }
                catch
                {
                }
                return mac;
            }
        }

        /// <summary>
        /// 取得当前机器的IP地址
        /// </summary>
        public static string IPAddress
        {
            get
            {
                string hostName = Dns.GetHostName();										// 得到本机的主机名
                IPHostEntry ipHostEntry = Dns.GetHostEntry(hostName);				// 取得本机IP
                string ipAddressHost = "127.0.0.1";
                foreach (IPAddress ip in ipHostEntry.AddressList)
                {
                    if (ip.AddressFamily.ToString() == "InterNetwork")
                    {
                        ipAddressHost = ip.ToString();
                        break;
                    }
                }
                return ipAddressHost;
            }
        }
        #endregion

        #region 受保护方法/函数
        private static System.Management.ManagementObjectCollection _managementObjectCollection = null;
        /// <summary>
        /// 取得Win32_NetworkAdapterConfiguration的ManagementObjectCollection
        /// </summary>
        protected static System.Management.ManagementObjectCollection ManagementObjectCollection
        {
            get
            {
                if (_managementObjectCollection != null)
                {
                    return _managementObjectCollection;
                }

                try
                {
                    System.Management.ManagementObjectSearcher managementObjectSearcher =
                        new System.Management.ManagementObjectSearcher(
                            "SELECT * FROM Win32_NetworkAdapterConfiguration");
                    if (managementObjectSearcher != null)
                    {
                        _managementObjectCollection = managementObjectSearcher.Get();
                        return _managementObjectCollection;
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                return null;
            }
        }
        #endregion
    }
}