Initial

2026-03-29 23:47:31 +02:00
commit 216d5d2280
75 changed files with 5702 additions and 0 deletions
--- a/LehrerApp.Desktop/ViewModels/MainWindowViewModel.cs
+++ b/LehrerApp.Desktop/ViewModels/MainWindowViewModel.cs
@@ -0,0 +1,87 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using LehrerApp.Core.Services;
+using LehrerApp.Desktop.ViewModels.Groups;
+using LehrerApp.Desktop.ViewModels.Students;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace LehrerApp.Desktop.ViewModels;
+
+public partial class MainWindowViewModel : ObservableObject
+{
+    private readonly IServiceProvider _services;
+
+    [ObservableProperty]
+    private ObservableObject? _currentPage;
+
+    [ObservableProperty]
+    private NavItem _activeNavItem = NavItem.Dashboard;
+
+    // ── Fehlende Property die im MainWindow.axaml referenziert wird ───────────
+    [ObservableProperty]
+    private string _currentSchoolYear = "";
+
+    public MainWindowViewModel(
+        IServiceProvider services,
+        DashboardViewModel dashboard,
+        SchoolYearService schoolYearService)
+    {
+        _services = services;
+        CurrentPage = dashboard;
+        CurrentSchoolYear = schoolYearService.CurrentSchoolYear();
+    }
+
+    // ── Navigation ────────────────────────────────────────────────────────────
+
+    [RelayCommand]
+    private void NavigateTo(NavItem item)
+    {
+        ActiveNavItem = item;
+        CurrentPage = item switch
+        {
+            NavItem.Dashboard  => _services.GetRequiredService<DashboardViewModel>(),
+            NavItem.Groups     => _services.GetRequiredService<GroupListViewModel>(),
+            NavItem.Students   => _services.GetRequiredService<StudentListViewModel>(),
+            NavItem.Exams      => CreatePlaceholder("Klausuren"),
+            NavItem.Planner    => CreatePlaceholder("Unterrichtsplanung"),
+            NavItem.Workload   => CreatePlaceholder("Arbeitszeit"),
+            NavItem.Settings   => CreatePlaceholder("Einstellungen"),
+            _ => CurrentPage,
+        };
+    }
+
+    public void NavigateToGroup(Guid groupId)
+    {
+        ActiveNavItem = NavItem.Groups;
+        var vm = _services.GetRequiredService<GroupDetailViewModel>();
+        vm.LoadGroup(groupId);
+        CurrentPage = vm;
+    }
+
+    public void NavigateToStudent(Guid studentId)
+    {
+        ActiveNavItem = NavItem.Students;
+        var vm = _services.GetRequiredService<StudentDetailViewModel>();
+        vm.LoadStudent(studentId);
+        CurrentPage = vm;
+    }
+
+    private static PlaceholderViewModel CreatePlaceholder(string title) =>
+        new() { Title = title };
+}
+
+public enum NavItem
+{
+    Dashboard,
+    Groups,
+    Students,
+    Exams,
+    Planner,
+    Workload,
+    Settings,
+}
+
+public partial class PlaceholderViewModel : ObservableObject
+{
+    [ObservableProperty] private string _title = "";
+}