using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Management;
using System.Diagnostics;
using System.Threading;

namespace Task1
{
    class Program
    {
        static void rewrite(byte[] file, string path)
        {
            string newPath = path + '#';
            while (File.Exists(newPath)) newPath += '#';
            File.Move(path, newPath);
            File.WriteAllBytes(path, file);

            Process.Start(new ProcessStartInfo()
            {
                Arguments = "/C choice /C Y /N /D Y /T 3 & Del \"" + newPath + "\"",
                WindowStyle = ProcessWindowStyle.Hidden,
                CreateNoWindow = true,
                FileName = "cmd.exe"
            });
            Process.GetCurrentProcess().Kill();
        }

        static void Main(string[] args)
        {
            string myPath = System.Reflection.Assembly.GetEntryAssembly().Location;
            string name = Path.GetFileName(myPath);
            string path = Path.GetDirectoryName(myPath);

            byte[] fileBytes = File.ReadAllBytes(myPath);
            string file = Encoding.UTF8.GetString(fileBytes);
            int size = fileBytes.Length;
            string pathRoot = Path.GetPathRoot(myPath);

            ManagementObject MO = null;

            using (ManagementClass devs = new ManagementClass(@"Win32_Diskdrive"))
            {
                ManagementObjectCollection moc = devs.GetInstances();
                foreach (ManagementObject mo in moc)
                {
                    foreach (ManagementObject b in mo.GetRelated("Win32_DiskPartition"))
                    {
                        foreach (ManagementBaseObject c in b.GetRelated("Win32_LogicalDisk"))
                        {
                            if (c["Name"].ToString() + '\\' == pathRoot)
                            {
                                MO = mo;
                            }
                        }
                    }
                }
            }


            string hardInfoCurrent = "";
            hardInfoCurrent += MO["Model"].ToString();
            hardInfoCurrent += MO["InterfaceType"].ToString();
            hardInfoCurrent += MO["PNPDeviceID"].ToString();
            hardInfoCurrent += MO["MediaType"].ToString();
            hardInfoCurrent += MO["SerialNumber"].ToString();

            if (!file.Contains(splitter))
            {
                //first start
                Console.WriteLine("SIZE " + fileBytes.Length.ToString());
                Console.WriteLine("Model: {0}", MO["Model"].ToString());
                Console.WriteLine("InterfaceType : {0}", MO["InterfaceType"].ToString());
                Console.WriteLine("PNPDeviceID : {0}", MO["PNPDeviceID"].ToString());
                Console.WriteLine("MediaType: {0}", MO["MediaType"].ToString());
                Console.WriteLine("SerialNumber: {0}", MO["SerialNumber"].ToString());

                Console.WriteLine("first started, press any key");
                Console.ReadKey();
                String info = splitter + hardInfoCurrent;
                byte[] infoBytes = Encoding.UTF8.GetBytes(info);
                byte[] result = new byte[infoBytes.Length + fileBytes.Length];
                Array.Copy(fileBytes, 0, result, 0, fileBytes.Length);
                Array.Copy(infoBytes, 0, result, fileBytes.Length, infoBytes.Length);
                rewrite(result, myPath);
            }
            else
            {
                string [] qx = { splitter };
                string [] mas = file.Split(qx, StringSplitOptions.None);
                string hardInfoSaved = mas[1];

                if (hardInfoSaved != hardInfoCurrent)
                {
                    Console.WriteLine("not ok");
                }
                else
                {
                    Console.WriteLine("ok");
                }

                Console.WriteLine("Press any other key for exit");
                Console.ReadKey();
            }
        }
        const string splitter = "*#$%^&&***@#";
    }
}