Userverwaltung improved

Components/Layout/MainLayout.razor

@@ -1,4 +1,9 @@
 @inherits LayoutComponentBase
+@inject AuthenticationStateProvider AuthStateProvider
+@inject NavigationManager Nav
+@inject timetracker.Data.UserNotificationService UserNotificationService
+@implements IDisposable
+@using System.Security.Claims
 
 <MudThemeProvider Theme="_theme" />
 <MudPopoverProvider />
@@ -29,6 +34,26 @@
 @code {
     private bool _drawerOpen = true;
 
+    protected override void OnInitialized()
+    {
+        UserNotificationService.OnUserDeleted += HandleUserDeleted;
+    }
+
+    private async Task HandleUserDeleted(int deletedUserId)
+    {
+        var state = await AuthStateProvider.GetAuthenticationStateAsync();
+        var idClaim = state.User.FindFirst(ClaimTypes.NameIdentifier)?.Value;
+        if (idClaim != null && int.TryParse(idClaim, out var myId) && myId == deletedUserId)
+        {
+            await InvokeAsync(() => Nav.NavigateTo("/auth/logout", forceLoad: true));
+        }
+    }
+
+    public void Dispose()
+    {
+        UserNotificationService.OnUserDeleted -= HandleUserDeleted;
+    }
+
     private readonly MudTheme _theme = new()
     {
         PaletteLight = new PaletteLight

Components/Layout/NavMenu.razor

@@ -25,5 +25,12 @@
             </MudNavMenu>
         </Authorized>
     </AuthorizeView>
-    <MudText Typo="Typo.caption" Class="px-4 py-2" Style="color: var(--mud-palette-text-disabled); text-align:center;">Version 1.1</MudText>
+    <MudTooltip Text="Changelog anzeigen" Placement="Placement.Top">
+        <MudNavMenu>
+            <MudNavLink Href="/changelog" Icon="@Icons.Material.Filled.NewReleases"
+                        Style="color: var(--mud-palette-text-disabled); font-size:0.75rem;">
+                Version 1.1
+            </MudNavLink>
+        </MudNavMenu>
+    </MudTooltip>
 </div>

Components/Pages/AdminUsers.razor

@@ -4,6 +4,8 @@
 @inject AuthService AuthService
 @inject ISnackbar Snackbar
 @inject AuthenticationStateProvider AuthStateProvider
+@inject timetracker.Data.UserNotificationService UserNotificationService
+@implements IDisposable
 
 <PageTitle>Benutzerverwaltung – Timetracker</PageTitle>
 
@@ -122,10 +124,22 @@ else
             .User.FindFirst(ClaimTypes.NameIdentifier);
         if (claim == null) return;
 
+        UserNotificationService.OnUsersChanged += RefreshUsers;
         _users = await AuthService.GetAllUsersAsync();
         _loading = false;
     }
 
+    private async Task RefreshUsers()
+    {
+        _users = await AuthService.GetAllUsersAsync();
+        await InvokeAsync(StateHasChanged);
+    }
+
+    public void Dispose()
+    {
+        UserNotificationService.OnUsersChanged -= RefreshUsers;
+    }
+
     private void StartEdit(User user)
     {
         _editUserId = user.Id;

Components/Pages/Changelog.razor

@@ -0,0 +1,92 @@
+@page "/changelog"
+@rendermode InteractiveServer
+@attribute [Authorize]
+
+<PageTitle>Changelog – Timetracker</PageTitle>
+
+<MudStack Spacing="4">
+
+    @* ── Header ── *@
+    <MudPaper Elevation="4" Class="pa-5 rounded-xl"
+              Style="background: linear-gradient(135deg, #3F51B5 0%, #1A237E 100%); color:white;">
+        <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="3">
+            <MudIcon Icon="@Icons.Material.Filled.NewReleases" Style="color:white; font-size:2rem" />
+            <MudStack Spacing="0">
+                <MudText Typo="Typo.h5" Style="color:white; font-weight:700">Changelog</MudText>
+                <MudText Typo="Typo.caption" Style="color:rgba(255,255,255,0.72)">Versionshistorie &amp; Änderungen</MudText>
+            </MudStack>
+        </MudStack>
+    </MudPaper>
+
+    @foreach (var release in _releases)
+    {
+        <MudCard Elevation="2" Class="rounded-xl">
+            <MudCardContent>
+                <MudStack Row="true" AlignItems="AlignItems.Center" Spacing="2" Class="mb-3">
+                    <MudChip T="string" Color="@(release.IsLatest ? Color.Primary : Color.Default)"
+                             Variant="Variant.Filled" Size="Size.Medium" Style="font-weight:700">
+                        @release.Version
+                    </MudChip>
+                    @if (release.IsLatest)
+                    {
+                        <MudChip T="string" Color="Color.Success" Variant="Variant.Outlined" Size="Size.Small">
+                            Aktuell
+                        </MudChip>
+                    }
+                    <MudText Typo="Typo.body2" Color="Color.Secondary">@release.Date</MudText>
+                </MudStack>
+                <MudDivider Class="mb-3" />
+                <MudStack Spacing="1">
+                    @foreach (var entry in release.Entries)
+                    {
+                        <MudStack Row="true" AlignItems="AlignItems.Start" Spacing="2">
+                            <MudChip T="string" Color="@GetTagColor(entry.Tag)" Variant="Variant.Outlined"
+                                     Size="Size.Small" Style="min-width:72px; justify-content:center; font-size:0.7rem;">
+                                @entry.Tag
+                            </MudChip>
+                            <MudText Typo="Typo.body2" Style="padding-top:2px">@entry.Text</MudText>
+                        </MudStack>
+                    }
+                </MudStack>
+            </MudCardContent>
+        </MudCard>
+    }
+
+</MudStack>
+
+@code {
+    private record ChangeEntry(string Tag, string Text);
+    private record Release(string Version, string Date, bool IsLatest, List<ChangeEntry> Entries);
+
+    private static Color GetTagColor(string tag) => tag switch
+    {
+        "Neu"     => Color.Success,
+        "Fix"     => Color.Error,
+        "Upgrade" => Color.Info,
+        _         => Color.Default
+    };
+
+    private readonly List<Release> _releases =
+    [
+        new("1.1", "08.06.2026", true,
+        [
+            new("Neu",     "Versionsnummer in der Navbar mit Link zum Changelog"),
+            new("Neu",     "Changelog-Seite"),
+            new("Neu",     "Live-Aktualisierung der Benutzerliste bei neuer Registrierung"),
+            new("Neu",     "Automatisches Abmelden gelöschter Benutzer"),
+            new("Neu",     "Benutzernamen in der Benutzerverwaltung umbenennen"),
+            new("Upgrade", "Navbar: Benutzer und Abmelden-Button unten fixiert"),
+        ]),
+        new("1.0", "20.05.2026", false,
+        [
+            new("Neu", "Erste Version des Timetrackers"),
+            new("Neu", "Wochenübersicht mit Arbeitszeiten und Pausen"),
+            new("Neu", "Monatsübersicht"),
+            new("Neu", "Feiertage-Verwaltung"),
+            new("Neu", "Urlaubs-Maximizer"),
+            new("Neu", "Einstellungen"),
+            new("Neu", "Benutzerverwaltung für Admins"),
+            new("Neu", "Registrierung und Login"),
+        ]),
+    ];
+}

Data/AuthService.cs

@@ -4,7 +4,7 @@ using Microsoft.EntityFrameworkCore;
 
 namespace timetracker.Data;
 
-public class AuthService(IDbContextFactory<TimetrackerDbContext> factory)
+public class AuthService(IDbContextFactory<TimetrackerDbContext> factory, UserNotificationService notifier)
 {
     public async Task<User?> LoginAsync(string username, string password)
     {
@@ -31,6 +31,8 @@ public class AuthService(IDbContextFactory<TimetrackerDbContext> factory)
         {
             db.Users.Remove(user);
             await db.SaveChangesAsync();
+            await notifier.NotifyUserDeletedAsync(userId);
+            await notifier.NotifyUsersChangedAsync();
         }
     }
 
@@ -48,6 +50,7 @@ public class AuthService(IDbContextFactory<TimetrackerDbContext> factory)
 
         user.Username = newUsername;
         await db.SaveChangesAsync();
+        await notifier.NotifyUsersChangedAsync();
         return null;
     }
 
@@ -65,6 +68,7 @@ public class AuthService(IDbContextFactory<TimetrackerDbContext> factory)
         var user = new User { Username = username, PasswordHash = hash, PasswordSalt = salt };
         db.Users.Add(user);
         await db.SaveChangesAsync();
+        await notifier.NotifyUsersChangedAsync();
         return (user, null);
     }
 

Data/UserNotificationService.cs

@@ -0,0 +1,19 @@
+namespace timetracker.Data;
+
+public class UserNotificationService
+{
+    public event Func<Task>? OnUsersChanged;
+    public event Func<int, Task>? OnUserDeleted;
+
+    public async Task NotifyUsersChangedAsync()
+    {
+        if (OnUsersChanged != null)
+            await OnUsersChanged.Invoke();
+    }
+
+    public async Task NotifyUserDeletedAsync(int userId)
+    {
+        if (OnUserDeleted != null)
+            await OnUserDeleted.Invoke(userId);
+    }
+}

Program.cs

@@ -24,6 +24,7 @@ builder.Services.AddAuthorization(options =>
 });
 builder.Services.AddCascadingAuthenticationState();
 builder.Services.AddHttpContextAccessor();
+builder.Services.AddSingleton<timetracker.Data.UserNotificationService>();
 builder.Services.AddScoped<AuthService>();
 
 // Add services to the container.