migration

test/Discovery.Loader.Avalonia/App.axaml.cs

@@ -0,0 +1,135 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Data.Core.Plugins;
+using Avalonia.Markup.Xaml;
+using Discovery.Loader.Models;
+using Discovery.Loader.Services;
+using Discovery.Loader.ViewModels;
+using Discovery.Loader.Windows;
+
+namespace Discovery.Loader;
+
+public partial class App : Application
+{
+    private UpdateService _updateService = new();
+
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override async void OnFrameworkInitializationCompleted()
+    {
+        BindingPlugins.DataValidators.RemoveAt(0);
+
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            var installed = _updateService.IsInstalled();
+
+            
+
+            // update-check
+            Update? update = null;
+
+            try
+            {
+                update = await _updateService.GetUpdateAsync();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex);
+            }
+
+            try
+            {
+                // if not installed (need update to install)
+                if (!installed)
+                {
+                    if (update == null)
+                    {
+                        // set window 
+                        var vm = new MainViewModel();
+                        var mw = new MainWindow { DataContext = vm };
+                        desktop.MainWindow = mw;
+
+                        // display major error
+                        mw.Show();
+                        await vm.ErrorAsync("Install failed (Source unavailable)");
+                        mw.Close();
+                    }
+                    else
+                    {
+                        // set window 
+                        var vm = new MainViewModel();
+                        var mw = new MainWindow { DataContext = vm };
+                        desktop.MainWindow = mw;
+
+                        // display install progress
+                        mw.Show();
+                        await vm.InstallAsync(_updateService, update);
+                        mw.Close();
+
+                        // start
+                        _updateService.StartExecutable();
+                    }
+                }
+                // if installed (should update if needed)
+                else
+                {
+                    if (update == null)
+                    {
+                        // set window 
+                        var vm = new MainViewModel();
+                        var mw = new MainWindow { DataContext = vm };
+                        desktop.MainWindow = mw;
+
+                        // display cant fetch updates, start afterwards
+                        mw.Show();
+                        await vm.ErrorAsync("Failed to fetch updates.");
+                        mw.Close();
+
+                        // start anyway
+                        _updateService.StartExecutable();
+                    }
+                    else
+                    {
+                        // compare versions
+                        var isUpdated = _updateService.CompareVersion(update);
+                        if (!isUpdated)
+                        {
+                            // set window 
+                            var vm = new MainViewModel();
+                            var mw = new MainWindow { DataContext = vm };
+                            desktop.MainWindow = mw;
+
+                            // display update
+                            mw.Show();
+                            await vm.UpdateAsync(_updateService, update);
+                            mw.Close();
+                        }
+                        else
+                        {
+                            // on current-version just start
+                            _updateService.StartExecutable();
+                        }
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex);
+            }
+            finally
+            {
+                //mw.Close();
+
+                //if (_updateService.IsInstalled())
+                //    _updateService.StartExecutable();
+
+                desktop.Shutdown();
+            }
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}