Program.cs

using Microsoft.Win32;
using PlenBotLogUploader.AppSettings;
using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Windows.Forms;

namespace PlenBotLogUploader;

internal static class Program
{
    /// <summary>
    ///     The main entry point for the application.
    /// </summary>
    [STAThread]
    private static void Main()
    {
        var currProcess = Process.GetCurrentProcess();
        var processName = Path.GetFileNameWithoutExtension(Application.ExecutablePath.AsSpan()).ToString();
        var otherProcesses = Process.GetProcessesByName(processName)
            .Where(x => !x.Id.Equals(currProcess.Id))
            .ToArray();
        var args = Environment.GetCommandLineArgs();
        var localDir = $"{Path.GetDirectoryName(Application.ExecutablePath.Replace('/', '\\'))}\\";
        if (args.Length == 4)
        {
            if (args[1].Equals("-update", StringComparison.OrdinalIgnoreCase) && args[3].Equals("-m", StringComparison.OrdinalIgnoreCase))
            {
                if (otherProcesses.Length == 0)
                {
                    File.Copy(Application.ExecutablePath.Replace('/', '\\'), localDir + args[2], true);
                    Process.Start(new ProcessStartInfo
                    {
                        UseShellExecute = true,
                        FileName = localDir + args[2],
                        Arguments = "-m -finishupdate",
                    });
                    return;
                }
                foreach (var process in otherProcesses.AsSpan())
                {
                    try
                    {
                        if (!process.WaitForExit(350))
                        {
                            process.Kill();
                        }
                    }
                    catch
                    {
                        // do nothing
                    }
                }
                File.Copy(Application.ExecutablePath.Replace('/', '\\'), localDir + args[2], true);
                Process.Start(new ProcessStartInfo
                {
                    UseShellExecute = true,
                    FileName = localDir + args[2],
                    Arguments = "-m -finishupdate",
                });
                return;
            }
        }
        else if (args.Length == 3)
        {
            if (args[2].Equals("-finishupdate", StringComparison.OrdinalIgnoreCase))
            {
                File.Delete($"{localDir}PlenBotLogUploader_Update.exe");
            }
            else if (args[1].Equals("-update", StringComparison.OrdinalIgnoreCase))
            {
                if (otherProcesses.Length == 0)
                {
                    File.Copy(Application.ExecutablePath.Replace('/', '\\'), localDir + args[2], true);
                    Process.Start(new ProcessStartInfo
                    {
                        UseShellExecute = true,
                        FileName = localDir + args[2],
                        Arguments = "-finishupdate",
                    });
                    return;
                }
                foreach (var process in otherProcesses.AsSpan())
                {
                    try
                    {
                        if (!process.WaitForExit(350))
                        {
                            process.Kill();
                        }
                    }
                    catch
                    {
                        // do nothing
                    }
                }
                File.Copy(Application.ExecutablePath.Replace('/', '\\'), localDir + args[2], true);
                Process.Start(new ProcessStartInfo
                {
                    UseShellExecute = true,
                    FileName = localDir + args[2],
                    Arguments = "-finishupdate",
                });
                return;
            }
        }
        else if (args.Length == 2)
        {
            if (args[1].Equals("-finishupdate", StringComparison.OrdinalIgnoreCase))
            {
                File.Delete($"{localDir}PlenBotLogUploader_Update.exe");
            }
            else if (args[1].Equals("-resetsettings", StringComparison.OrdinalIgnoreCase))
            {
                using (var registrySubKey = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true))
                {
                    if (registrySubKey.GetValue("PlenBot Log Uploader") is not null)
                    {
                        registrySubKey.DeleteValue("PlenBot Log Uploader");
                    }
                }
                new ApplicationSettings().Save();
            }
        }
        if (otherProcesses.Length == 0)
        {
            Application.EnableVisualStyles();
            Application.SetHighDpiMode(HighDpiMode.SystemAware);
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new FormMain());
        }
    }
}