make unlocking work, no exception handling yet

src/KeyKeeper/RepositoryWindow.axaml

@@ -56,10 +56,12 @@
                             HorizontalAlignment="Center"
                             VerticalAlignment="Center">
                     <TextBox x:Name="UnlockPasswordEdit"
+                             Text="{Binding UnlockPassword, Mode=TwoWay}"
                              PasswordChar="*"
                              Width="450" />
 
                     <Button x:Name="UnlockButton"
+                            Command="{Binding TryUnlock}"
                             HorizontalAlignment="Center"
                             Foreground="Black"
                             Content="Unlock!" />

src/KeyKeeper/ViewModels/LockedRepositoryViewModel.cs

@@ -1,13 +1,44 @@
+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.Input;
 using KeyKeeper.PasswordStore;
+using KeyKeeper.PasswordStore.Crypto;
 
 namespace KeyKeeper.ViewModels;
 
-public class LockedRepositoryViewModel : ViewModelBase
+public partial class LockedRepositoryViewModel : ViewModelBase
 {
+    RepositoryWindowViewModel parent;
     private IPassStore passStore;
+    private string password;
 
-    public LockedRepositoryViewModel(IPassStore store)
+    public LockedRepositoryViewModel(IPassStore store, RepositoryWindowViewModel parent)
     {
         passStore = store;
+        this.parent = parent;
+    }
+
+    public string UnlockPassword
+    {
+        get => password;
+        set { password = value; OnPropertyChanged(nameof(UnlockPassword)); }
+    }
+
+    [RelayCommand]
+    public void TryUnlock()
+    {
+        try
+        {
+            passStore.Unlock(new CompositeKey(UnlockPassword, null));
+            parent.UpdateLockStatus();
+        } catch (PassStoreFileException e)
+        {
+            // TODO
+            Console.WriteLine("pass store file exception: " + e.Message);
+        } catch (Exception e)
+        {
+            // TODO
+            Console.WriteLine(e);
+        }
     }
 }

src/KeyKeeper/ViewModels/RepositoryWindowViewModel.cs

@@ -1,8 +1,11 @@
+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.Input;
 using KeyKeeper.PasswordStore;
 
 namespace KeyKeeper.ViewModels;
 
-public class RepositoryWindowViewModel : ViewModelBase
+public partial class RepositoryWindowViewModel : ViewModelBase
 {
     private object currentPage;
     private IPassStore passStore;
@@ -19,7 +22,7 @@ public class RepositoryWindowViewModel : ViewModelBase
         UpdateLockStatus();
     }
 
-    private void UpdateLockStatus()
+    public void UpdateLockStatus()
     {
         if ((currentPage == null || currentPage is LockedRepositoryViewModel) && !passStore.Locked)
             SwitchToUnlocked();
@@ -29,11 +32,11 @@ public class RepositoryWindowViewModel : ViewModelBase
 
     private void SwitchToUnlocked()
     {
-        currentPage = new UnlockedRepositoryViewModel(passStore);
+        CurrentPage = new UnlockedRepositoryViewModel(passStore);
     }
 
     private void SwitchToLocked()
     {
-        currentPage = new LockedRepositoryViewModel(passStore);
+        CurrentPage = new LockedRepositoryViewModel(passStore, this);
     }
 }