using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;

namespace SiMay.RemoteService.Loader
{
 public class SystemInforUtil
 {
 public static string LocalIPV4
 {
 get
 {
 try
 {
 string HostName = Dns.GetHostName();
 IPHostEntry IpEntry = Dns.GetHostEntry(HostName);
 for (int i = 0; i < IpEntry.AddressList.Length; i++)
 {
 if (IpEntry.AddressList[i].AddressFamily == AddressFamily.InterNetwork)
 return IpEntry.AddressList[i].ToString();
 }
 return string.Empty;
 }
 catch
 {
 return string.Empty;
 }
 }
 }

 public static string LocalCpuInfo
 {
 get
 {
 try
 {
 RegistryKey reg = Registry.LocalMachine;
 reg = reg.OpenSubKey("HARDWARE\\DESCRIPTION\\System\\CentralProcessor\0円");
 return reg.GetValue("ProcessorNameString").ToString();
 }
 catch
 {
 return string.Empty;
 }
 }
 }

 public static string OSFullName
 {
 get
 {
 string fullName = "Unknown OS";

 try
 {
 using (var searcher = new ManagementObjectSearcher("SELECT Caption FROM Win32_OperatingSystem"))
 {
 foreach (ManagementObject os in searcher.Get())
 {
 fullName = os["Caption"].ToString();
 break;
 }
 }

 fullName = Regex.Replace(fullName, "^.*(?=Windows)", "").TrimEnd().TrimStart(); // Remove everything before first match "Windows" and trim end & start
 var is64Bit = Environment.Is64BitOperatingSystem;
 return $"{fullName}{(is64Bit ? 64 : 32)} Bit";
 }
 catch
 {
 return fullName;
 }
 }
 }

 public static long LocalMemorySize
 {
 get
 {
 try
 {
 Microsoft.VisualBasic.Devices.Computer My = new Microsoft.VisualBasic.Devices.Computer();
 return (long)My.Info.TotalPhysicalMemory;
 }
 catch
 {
 return 0;
 }
 }
 }
 }
}