using System.Configuration;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.ServiceProcess;
using System.Windows;
using Microsoft.Win32;

namespace EngineeringSync.Setup;

public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        if (e.Args.Length > 0 && e.Args[0].Equals("/uninstall", StringComparison.OrdinalIgnoreCase))
        {
            RunUninstall();
            Shutdown();
            return;
        }

        var window = new Views.WizardWindow();
        window.Show();
    }

    private void RunUninstall()
    {
        var serviceName = "EngineeringSync";
        try
        {
            var sc = new ServiceController(serviceName);
            if (sc.Status != ServiceControllerStatus.Stopped)
            {
                sc.Stop();
                sc.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(10));
            }
        }
        catch { }

        try
        {
            Process.Start(new ProcessStartInfo
            {
                FileName = "sc",
                Arguments = "delete EngineeringSync",
                UseShellExecute = false,
                CreateNoWindow = true
            })?.WaitForExit();
        }
        catch { }

        try
        {
            using var runKey = Registry.CurrentUser.OpenSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true);
            runKey?.DeleteValue("EngineeringSync.TrayApp", false);
        }
        catch { }

        try
        {
            Registry.LocalMachine.DeleteSubKey(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\EngineeringSync", false);
        }
        catch { }

        var desktop = Environment.GetFolderPath(Environment.SpecialFolder.CommonDesktopDirectory);
        var linkPath = Path.Combine(desktop, "EngineeringSync.lnk");
        if (File.Exists(linkPath))
            File.Delete(linkPath);

        var startMenu = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.CommonStartMenu),
            "Programs", "EngineeringSync");
        if (Directory.Exists(startMenu))
            Directory.Delete(startMenu, true);

        var msg = "EngineeringSync wurde erfolgreich deinstalliert.";
        MessageBox.Show(msg, "Deinstallation", MessageBoxButton.OK, MessageBoxImage.Information);
    }
}