PixiEditor/PixiEditor.UpdateInstaller/MainWindow.xaml.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Threading.Tasks;
using System.Windows;

namespace PixiEditor.UpdateInstaller
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = new ViewModelMain();
        }

        private async void Window_Loaded(object sender, RoutedEventArgs e)
        {
            ViewModelMain vmm = ((ViewModelMain)DataContext);
            await Task.Run(() =>
            {
                try
                {
                    vmm.InstallUpdate();
                }
                catch(Exception ex)
                {
                    MessageBox.Show(ex.Message, "Update error", MessageBoxButton.OK, MessageBoxImage.Error);
                    File.AppendAllText("ErrorLog.txt", $"Error PixiEditor.UpdateInstaller: {DateTime.Now}\n{ex.Message}\n{ex.StackTrace}\n-----\n");
                }
                finally
                {
                    string pixiEditorExecutablePath = Directory.GetFiles(vmm.UpdateDirectory, "PixiEditor.exe")[0];
                    Process.Start(pixiEditorExecutablePath);
                }
            });
            Close();
        }
    }
}