Error handling, better path remembrance

src/AppCommon/FileTime.App.Core/ViewModels/ItemViewModel.cs

@@ -4,6 +4,7 @@ using DynamicData;
 using FileTime.App.Core.Models;
 using FileTime.App.Core.Models.Enums;
 using FileTime.App.Core.Services;
+using FileTime.Core.Helper;
 using FileTime.Core.Models;
 using MoreLinq;
 using MvvmGen;
@@ -15,6 +16,8 @@ namespace FileTime.App.Core.ViewModels;
 [Inject(typeof(IItemNameConverterService), "_itemNameConverterService")]
 public abstract partial class ItemViewModel : IItemViewModel
 {
+    private ITabViewModel? _parentTab;
+
     [Property]
     private IItem? _baseItem;
 
@@ -44,6 +47,8 @@ public abstract partial class ItemViewModel : IItemViewModel
 
     public void Init(IItem item, ITabViewModel parentTab, ItemViewModelType itemViewModelType)
     {
+        _parentTab = parentTab;
+
         var sourceCollection = itemViewModelType switch
         {
             ItemViewModelType.Main => parentTab.CurrentItemsCollectionObservable,
@@ -62,7 +67,7 @@ public abstract partial class ItemViewModel : IItemViewModel
 
         IsSelected = itemViewModelType is ItemViewModelType.Main
             ? parentTab.CurrentSelectedItem.Select(EqualsTo)
-            : Observable.Return(false);
+            : Observable.Return(IsInDeespestPath());
 
         IsAlternative = sourceCollection.Select(c => c?.Index().FirstOrDefault(i => EqualsTo(i.Value)).Key % 2 == 0);
 
@@ -86,4 +91,19 @@ public abstract partial class ItemViewModel : IItemViewModel
     {
         return BaseItem?.FullName?.Path is string path && path == itemViewModel?.BaseItem?.FullName?.Path;
     }
+
+    private bool IsInDeespestPath()
+    {
+        if (_parentTab?.Tab?.LastDeepestSelectedPath is null
+            || BaseItem?.FullName is null)
+        {
+            return false;
+        }
+
+        var ownFullName = BaseItem.FullName;
+        var deepestPath = _parentTab.Tab.LastDeepestSelectedPath;
+        var commonPath = new FullName(PathHelper.GetCommonPath(ownFullName.Path, deepestPath.Path));
+
+        return commonPath.Path == ownFullName.Path;
+    }
 }

src/Core/FileTime.Core.Abstraction/Services/ITab.cs

@@ -9,6 +9,7 @@ public interface ITab : IInitable<IContainer>, IDisposable
     IObservable<IContainer?> CurrentLocation { get; }
     IObservable<AbsolutePath?> CurrentSelectedItem { get; }
     IObservable<IObservable<IChangeSet<IItem>>?> CurrentItems { get; }
+    FullName? LastDeepestSelectedPath { get; }
 
     void SetCurrentLocation(IContainer newLocation);
     void AddItemFilter(ItemFilter filter);

src/Core/FileTime.Core.Services/Tab.cs

@@ -15,13 +15,13 @@ public class Tab : ITab
     private readonly BehaviorSubject<IContainer?> _currentLocationForced = new(null);
     private readonly BehaviorSubject<AbsolutePath?> _currentSelectedItem = new(null);
     private readonly SourceList<ItemFilter> _itemFilters = new();
-    private FullName? _lastDeepestSelected;
     private AbsolutePath? _currentSelectedItemCached;
     private PointInTime _currentPointInTime;
 
     public IObservable<IContainer?> CurrentLocation { get; }
     public IObservable<IObservable<IChangeSet<IItem>>?> CurrentItems { get; }
     public IObservable<AbsolutePath?> CurrentSelectedItem { get; }
+    public FullName? LastDeepestSelectedPath { get; private set; }
 
     public Tab(ITimelessContentProvider timelessContentProvider)
     {
@@ -33,6 +33,13 @@ public class Tab : ITab
         CurrentLocation = _currentLocation
             .DistinctUntilChanged()
             .Merge(_currentLocationForced)
+            .Do(_ =>
+            {
+                if (_currentSelectedItemCached is not null)
+                {
+                    LastDeepestSelectedPath = new FullName(PathHelper.GetLongerPath(LastDeepestSelectedPath?.Path, _currentSelectedItemCached.Path.Path));
+                }
+            })
             .Publish(null)
             .RefCount();
 
@@ -79,11 +86,6 @@ public class Tab : ITab
         {
             _currentSelectedItemCached = s;
             _currentSelectedItem.OnNext(s);
-
-            if (s is not null)
-            {
-                _lastDeepestSelected = new FullName(PathHelper.GetLongerPath(_lastDeepestSelected?.Path, s.Path.Path));
-            }
         });
     }
 
@@ -99,13 +101,13 @@ public class Tab : ITab
         if (!items.Any()) return null;
 
         var newSelectedItem = new AbsolutePath(_timelessContentProvider, items.First());
-        if (_lastDeepestSelected is not null)
+        if (LastDeepestSelectedPath is not null)
         {
             var parentPath = items.First().FullName?.GetParent()?.Path;
 
-            if (parentPath is not null && _lastDeepestSelected.Path.StartsWith(parentPath))
+            if (parentPath is not null && LastDeepestSelectedPath.Path.StartsWith(parentPath))
             {
-                var itemNameToSelect = _lastDeepestSelected.Path
+                var itemNameToSelect = LastDeepestSelectedPath.Path
                     .Split(Constants.SeparatorChar)
                     .Skip((parentPath?.Split(Constants.SeparatorChar).Length) ?? 0)
                     .FirstOrDefault();
@@ -119,7 +121,7 @@ public class Tab : ITab
             }
         }
 
-        _lastDeepestSelected = new FullName(PathHelper.GetLongerPath(_lastDeepestSelected?.Path, newSelectedItem.Path.Path));
+        LastDeepestSelectedPath = new FullName(PathHelper.GetLongerPath(LastDeepestSelectedPath?.Path, newSelectedItem.Path.Path));
 
         return newSelectedItem;
     }

src/GuiApp/Avalonia/FileTime.GuiApp/Services/LifecycleService.cs

@@ -1,4 +1,5 @@
 using FileTime.App.Core.Services;
+using Microsoft.Extensions.Logging;
 
 namespace FileTime.GuiApp.Services;
 
@@ -6,18 +7,30 @@ public class LifecycleService
 {
     private readonly IEnumerable<IExitHandler> _exitHandlers;
     private readonly IEnumerable<IStartupHandler> _startupHandlers;
+    private readonly ILogger<LifecycleService> _logger;
 
-    public LifecycleService(IEnumerable<IStartupHandler> startupHandlers, IEnumerable<IExitHandler> exitHandlers)
+    public LifecycleService(
+        IEnumerable<IStartupHandler> startupHandlers,
+        IEnumerable<IExitHandler> exitHandlers,
+        ILogger<LifecycleService> logger)
     {
         _exitHandlers = exitHandlers;
         _startupHandlers = startupHandlers;
+        _logger = logger;
     }
 
     public async Task InitStartupHandlersAsync()
     {
         foreach (var startupHandler in _startupHandlers)
         {
-            await startupHandler.InitAsync();
+            try
+            {
+                await startupHandler.InitAsync();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error while running startup handler {handler}", startupHandler?.GetType().FullName);
+            }
         }
     }
 
@@ -25,7 +38,14 @@ public class LifecycleService
     {
         foreach (var exitHandler in _exitHandlers)
         {
-            await exitHandler.ExitAsync();
+            try
+            {
+                await exitHandler.ExitAsync();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error while running exit handler {handler}", exitHandler?.GetType().FullName);
+            }
         }
     }
 }

src/GuiApp/Avalonia/FileTime.GuiApp/ViewModels/MainWindowViewModel.cs

@@ -49,17 +49,7 @@ public partial class MainWindowViewModel : IMainWindowViewModelBase
 
         Title = "FileTime " + versionString;
 
-        //TODO: refactor
-        /*if (AppState.Tabs.Count == 0)
-        {
-            var tab = _serviceProvider.GetInitableResolver<IContainer>(_localContentProvider)
-                .GetRequiredService<ITab>();
-            var tabViewModel = _serviceProvider.GetInitableResolver(tab, 1).GetRequiredService<ITabViewModel>();
-
-            _appState.AddTab(tabViewModel);
-        }*/
-
-        _lifecycleService.InitStartupHandlersAsync().Wait();
+        Task.Run(async () => await _lifecycleService.InitStartupHandlersAsync()).Wait();
     }
 
     public void ProcessKeyDown(Key key, KeyModifiers keyModifiers, Action<bool> setHandled)