using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;


//----------------------------------------------------------------
//Module Name:  $safeprojectname$
//Purpose:      
//CopyRight:    Muchinfo
//History:
//----------------------------------------------------------------
//DateTime		2016/8/22 14:26:52
//Author       
//Description   Create
//----------------------------------------------------------------

namespace Muchinfo.MTPClient.Infrastructure.Extensions
{
    public static class ProcessExtensions
    {


        private static string FindIndexedProcessName(int pid)
        {
            var processName = Process.GetProcessById(pid).ProcessName;
            var processByName = Process.GetProcessesByName(processName);
            string processIndexdName = null;
            for (int index = 0; index < processByName.Length; index++)
            {
                processIndexdName = index == 0 ? processName : processName + "#" + index;
                var procssId = new PerformanceCounter("Process", "ID Process", processIndexdName);
                if ((int) procssId.NextValue() == pid)
                {
                    return processIndexdName;
                }
            }
            return processIndexdName;
        }

        private static Process FindPidFromIndexedProcessName(string indexedProcessName)
        {
            var parentId = new PerformanceCounter("Process", "Creating Process ID", indexedProcessName);
            return Process.GetProcessById((int) parentId.NextValue());
        }

        public static Process Parent(this Process process)
        {
            return FindPidFromIndexedProcessName(FindIndexedProcessName(process.Id));
        }
    }
}