using System;
using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Net.NetworkInformation;
using System.Text;

namespace ConnectPoint
{
    /// <summary>
    /// 网络适配器工具类，可获取指定网络适配器，集合
    /// </summary>
   public class NetworkAdapterUtil
    {
       /// <summary>
       /// 用于储存适配器集合
       /// </summary>
       List<NetworkAdapter>  adapterList;


       /// <summary>
       /// 获取电脑适配器个数
       /// </summary>
       /// <returns>总个数</returns>
       public int GetCount()
       {
           if (adapterList == null)
           {
              // GetAllNetworkAdaptersUPAndDown();
               GetAllNetworkAdapters();
               return 0;
           }
           return adapterList.Count; 
       }

       /// <summary>
       /// 获取 Ethernet,Wireless80211 UP适配器，适配器被禁用则不能获取到
       /// </summary>
       /// <returns></returns>
       public List<NetworkAdapter> GetEthernetWirelessNetworkAdaptersUP()
       {
           //获得所有UP适配器
           IEnumerable<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces().Where(d => d.OperationalStatus == OperationalStatus.Up);
           return GetNetworkAdapters(adapters, NetworkInterfaceType.Ethernet, NetworkInterfaceType.Wireless80211); 
       }


       /// <summary>
       /// 获取所有适配器类型，适配器被禁用则不能获取到
       /// </summary>
       /// <returns></returns>
       public List<NetworkAdapter> GetAllNetworkAdapters() //如果适配器被禁用则不能获取到
       {
           IEnumerable<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces();
           return GetNetworkAdapters(adapters);

       }

       /// <summary>
       /// 获取所有UP适配器类型
       /// </summary>
       /// <returns></returns>
       public List<NetworkAdapter> GetAllNetworkAdaptersUPAddress()
       {
           IEnumerable<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces().Where(d => d.OperationalStatus == OperationalStatus.Up);
           return GetNetworkAdapters(adapters);
          
       }

    /// <summary>
       /// 获取所有DOWN适配器类型
    /// </summary>
    /// <returns></returns>
       public List<NetworkAdapter> GetAllNetworkAdaptersDown()
       {
           IEnumerable<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces().Where(d => d.OperationalStatus ==OperationalStatus.Down);
           return GetNetworkAdapters(adapters);

       }

       /// <summary>
       /// 根据适配器ID得到适配器信息
       /// </summary>
       /// <param name="networkInterfaceID"></param>
       /// <returns></returns>
       public NetworkAdapter GetNeworkAdapterByNetworkInterfaceID(string networkInterfaceID)
       {
           IEnumerable<NetworkInterface> adapters = NetworkInterface.GetAllNetworkInterfaces(); 
     
           foreach (NetworkInterface adapter in adapters)
           {
               NetworkAdapter network = SetNetworkAdapterValue(adapter);
               if (network.NetworkInterfaceID == networkInterfaceID)
               {
                   return network;            
               }                           
           }
           return null;
       }


       /// <summary>
       /// 启用所有适配器
       /// </summary>
       /// <returns></returns>
       public void  EnableAllAdapters()
       {
          // ManagementClass wmi = new ManagementClass("Win32_NetworkAdapter");
          // ManagementObjectCollection moc = wmi.GetInstances();
           System.Management.ManagementObjectSearcher moc = new System.Management.ManagementObjectSearcher("Select * from Win32_NetworkAdapter where NetEnabled!=null ");     
           foreach (System.Management.ManagementObject mo in moc.Get())
           {
               //if (!(bool)mo["NetEnabled"])
               //    continue;
               string capation = mo["Caption"].ToString();
               string descrption =mo["Description"].ToString();
               mo.InvokeMethod("Enable",null);
           }
          
       }

       /// <summary>
       /// 禁用所有适配器
       /// </summary>
       public void DisableAllAdapters()
       {
           // ManagementClass wmi = new ManagementClass("Win32_NetworkAdapter");
           // ManagementObjectCollection moc = wmi.GetInstances();
           System.Management.ManagementObjectSearcher moc = new System.Management.ManagementObjectSearcher("Select * from Win32_NetworkAdapter where NetEnabled!=null ");
           foreach (System.Management.ManagementObject mo in moc.Get())
           {
               //if ((bool)mo["NetEnabled"])
               //    continue;
               string capation = mo["Caption"].ToString();
               string descrption = mo["Description"].ToString();
               mo.InvokeMethod("Disable", null);
           }

       }

       /// <summary>
       /// 根据适配器生成报表
       /// </summary>
       /// <param name="adapters"></param>
       /// <returns></returns>
       public string ReportByAdapters(List<NetworkAdapter> adapters)
       {
           if (adapters == null || adapters.Count <= 0)
           {
               return "没有可用适配器";
           }

           StringBuilder sb = new StringBuilder();
           int index = 0;
           sb.AppendLine("适配器总数: "+adapters.Count);

           foreach (NetworkAdapter adapter in adapters)
           {
               index++;
               sb.AppendLine("---------------------第" + index + "个适配器信息---------------------");
               sb.AppendLine("描述信息:    "+adapter.Description);
               sb.AppendLine("接口类型:    " + adapter.NetworkInterfaceType);
               sb.AppendLine("速度:        " + adapter.Speed);
               sb.AppendLine("获取IP方式:  " + (adapter.IsDhcpEnabled?"自动":"手动"));
               sb.AppendLine("IP地址:      "+adapter.IpAddress);
               sb.AppendLine("子网掩码:    " + adapter.Mask);
               sb.AppendLine("网关:        " + adapter.Getway);
               sb.AppendLine("主DNS地址:   " + adapter.DnsMain);
               sb.AppendLine("备用DNS地址: " + adapter.DnsBackup);         
               if (adapter.IsDhcpEnabled) sb.AppendLine("DHCP服务器:  " + adapter.DhcpServer);
               sb.AppendLine("MAC地址:     " + adapter.MacAddres);

               sb.AppendLine();

           }
           return sb.ToString();
       }



      /// <summary>
      /// 根据条件获取IP地址集合，
      /// </summary>
       /// <param name="adapters">网络接口地址集合</param>
      /// <param name="adapterTypes">网络连接状态，如,UP,DOWN等</param>
      /// <returns></returns>
       private List<NetworkAdapter> GetNetworkAdapters(IEnumerable<NetworkInterface> adapters, params NetworkInterfaceType[] networkInterfaceTypes)
        {
            adapterList = new List<NetworkAdapter>();

            foreach (NetworkInterface adapter in adapters)
            {
                if (networkInterfaceTypes.Length <=0) //如果没传可选参数，就查询所有
                {
                    if (adapter != null)
                    {
                        NetworkAdapter adp = SetNetworkAdapterValue(adapter);
                        adapterList.Add(adp);
                    }
                    else
                    {
                        return null;
                    }
                }
                else //过滤查询数据
                {
                   foreach (NetworkInterfaceType networkInterfaceType in networkInterfaceTypes) 
                    {                     
                       if (adapter.NetworkInterfaceType.ToString().Equals(networkInterfaceType.ToString())) 
                        {
                            adapterList.Add(SetNetworkAdapterValue(adapter)); 
                            break; //退出当前循环
                        }
                    }
                }
            }
            return adapterList;
        }

      /// <summary>
      /// 设置网络适配器信息
      /// </summary>
      /// <param name="adapter"></param>
      /// <returns></returns>
      private NetworkAdapter SetNetworkAdapterValue(NetworkInterface adapter)
      {
          NetworkAdapter networkAdapter = new NetworkAdapter();
          IPInterfaceProperties ips = adapter.GetIPProperties();
          networkAdapter.Description = adapter.Name;
          networkAdapter.NetworkInterfaceType = adapter.NetworkInterfaceType.ToString();
          networkAdapter.Speed = adapter.Speed / 1000 / 1000 + "MB"; //速度
          networkAdapter.MacAddress = adapter.GetPhysicalAddress(); //物理地址集合
          networkAdapter.NetworkInterfaceID = adapter.Id;//网络适配器标识符

          networkAdapter.Getwaryes = ips.GatewayAddresses; //网关地址集合
          networkAdapter.IPAddresses = ips.UnicastAddresses; //IP地址集合
          networkAdapter.DhcpServerAddresses = ips.DhcpServerAddresses;//DHCP地址集合
          networkAdapter.IsDhcpEnabled =ips.GetIPv4Properties()==null?false: ips.GetIPv4Properties().IsDhcpEnabled; //是否启用DHCP服务

          IPInterfaceProperties adapterProperties = adapter.GetIPProperties();//获取IPInterfaceProperties实例  
          networkAdapter.DnsAddresses = adapterProperties.DnsAddresses; //获取并显示DNS服务器IP地址信息 集合
          return networkAdapter;
      }
    }
}