add group tree display

src/KeyKeeper/PasswordStore/PassStoreEntry.cs

@@ -20,6 +20,7 @@ public abstract class PassStoreEntry
             return $"avares://KeyKeeper/Assets/builtin-entry-icon-{IconType}.svg";
         }
     }
+    public virtual string DisplayName => Name;
 
     public void WriteToStream(Stream str)
     {

src/KeyKeeper/PasswordStore/PassStoreEntryGroup.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using static KeyKeeper.PasswordStore.FileFormatConstants;
 
 namespace KeyKeeper.PasswordStore;
@@ -12,6 +13,16 @@ public class PassStoreEntryGroup : PassStoreEntry, IPassStoreDirectory
     public Guid? CustomGroupSubtype { get; set; }
     public List<PassStoreEntry> ChildEntries { get; set; }
 
+    public override string DisplayName => GroupType switch
+    {
+        GROUP_TYPE_DEFAULT => "All Passwords",
+        GROUP_TYPE_FAVOURITES => "Favourites",
+        GROUP_TYPE_ROOT => ":root:",
+        _ => Name
+    };
+
+    public IEnumerable<PassStoreEntryGroup> ChildGroups => ChildEntries.OfType<PassStoreEntryGroup>();
+
     public PassStoreEntryGroup(Guid id, DateTime createdAt, DateTime modifiedAt,
                                Guid iconType, string name, byte groupType,
                                List<PassStoreEntry>? children = null,

src/KeyKeeper/PasswordStore/PassStoreFileAccessor.cs

@@ -269,6 +269,15 @@ public class PassStoreFileAccessor : IPassStore
             "",
             GROUP_TYPE_DEFAULT
         );
+        PassStoreEntryGroup favourites = new(
+            Guid.NewGuid(),
+            DateTime.UtcNow,
+            DateTime.UtcNow,
+            Guid.Empty,
+            "",
+            GROUP_TYPE_FAVOURITES
+        );
+
         PassStoreEntryGroup root = new(
             Guid.NewGuid(),
             DateTime.UtcNow,
@@ -276,9 +285,10 @@ public class PassStoreFileAccessor : IPassStore
             Guid.Empty,
             "",
             GROUP_TYPE_ROOT,
-            [defaultGroup]
+            [defaultGroup, favourites]
         );
         defaultGroup.Parent = root;
+        favourites.Parent = root;
         root.WriteToStream(w);
         return root;
     }

src/KeyKeeper/ViewModels/UnlockedRepositoryViewModel.cs

@@ -11,6 +11,7 @@ public class UnlockedRepositoryViewModel : ViewModelBase
 {
     private IPassStore passStore;
     private IPassStoreDirectory currentDirectory;
+    private PassStoreEntryGroup? rootDirectory;
     private bool hasUnsavedChanges;
     private DispatcherTimer? _totpRefreshTimer;
     private Dictionary<Guid, string> _totpCodes = new();
@@ -25,6 +26,31 @@ public class UnlockedRepositoryViewModel : ViewModelBase
         }
     }
 
+    public IEnumerable<PassStoreEntryGroup> PasswordGroups
+    {
+        get
+        {
+            if (rootDirectory == null) return [];
+            return rootDirectory
+                .Where(entry => entry is PassStoreEntryGroup)
+                .Select(entry => (entry as PassStoreEntryGroup)!);
+        }
+    }
+    public PassStoreEntryGroup SelectedPasswordGroup
+    {
+        get
+        {
+            return PasswordGroups.First(group => group == currentDirectory);
+        }
+        set
+        {
+            if (PasswordGroups.Any(group => group == value))
+            {
+                ChangeDirectory(value);
+            }
+        }
+    }
+
     public bool HasUnsavedChanges
     {
         get => hasUnsavedChanges;
@@ -39,6 +65,7 @@ public class UnlockedRepositoryViewModel : ViewModelBase
     {
         passStore = store;
         currentDirectory = directory;
+        rootDirectory = (directory as PassStoreEntryGroup)?.Parent;
         HasUnsavedChanges = false;
         InitializeTotpCodes();
         StartTotpRefreshTimer();
@@ -88,6 +115,19 @@ public class UnlockedRepositoryViewModel : ViewModelBase
         HasUnsavedChanges = false;
     }
 
+    private void ChangeDirectory(PassStoreEntryGroup newDir)
+    {
+        if (newDir == currentDirectory)
+            return;
+
+        currentDirectory = newDir;
+        InitializeTotpCodes();
+        StartTotpRefreshTimer();
+
+        OnPropertyChanged(nameof(SelectedPasswordGroup));
+        OnPropertyChanged(nameof(Passwords));
+    }
+
     private void InitializeTotpCodes()
     {
         _totpCodes.Clear();
@@ -102,6 +142,10 @@ public class UnlockedRepositoryViewModel : ViewModelBase
         // Calculate time until next TOTP period boundary
         int secondsUntilNextCode = CalculateSecondsUntilNextTotpRefresh();
 
+        if (_totpRefreshTimer != null)
+        {
+            _totpRefreshTimer.Stop();
+        }
         _totpRefreshTimer = new DispatcherTimer
         {
             Interval = TimeSpan.FromSeconds(secondsUntilNextCode)

src/KeyKeeper/Views/RepositoryWindow.axaml

@@ -56,22 +56,23 @@
                             </StackPanel>
                         </Border>
 
-                                    <!-- Рамочка  -->
+                        <!-- Группы паролей  -->
-                        <!-- <Border BorderBrush="Gray"
+                        <TreeView x:Name="GroupTree"
-                                            BorderThickness="1"
+                                 ItemsSource="{Binding PasswordGroups}"
-                                            CornerRadius="5"
+                                 SelectedItem="{Binding SelectedPasswordGroup}"
-                                            Padding="20"
+                                 Background="#FFFFFFFF"
-                                            Background="#F5F5F5"
+                                 SelectionMode="Single" >
-                                            HorizontalAlignment="Left">
+                            <TreeView.ItemTemplate>
+                                <TreeDataTemplate ItemsSource="{Binding ChildGroups}">
+                                    <Border Background="Transparent"
+                                            DoubleTapped="Entry_DoubleTapped">
+                                        <TextBlock Text="{Binding DisplayName}"
+                                                   Foreground="Black" />
+                                    </Border>
+                                </TreeDataTemplate>
+                            </TreeView.ItemTemplate>
+                        </TreeView>
 
-                        <StackPanel HorizontalAlignment="Left">
-                            <Button Content="All Passwords"
-                                                Width="120"
-                                                Height="30"
-                                                HorizontalAlignment="Left"/>
-                        </StackPanel>
-
-                        </Border> -->
                         <!-- Save Passwords -->
                         <Button Content="Save Passwords"
                                 Classes="accentSidebarButton"