feat: Fehlzeiten Tabelle für Templates

LehrerApp.Desktop/ViewModels/Students/CreateLetterDialogViewModel.cs

@@ -13,6 +13,7 @@ public partial class CreateLetterDialogViewModel : ObservableObject
     private readonly TemplateStore _templates;
     private readonly ITemplateRenderer _renderer;
     private readonly Func<AttendanceCalendarOptions, DrawingValue>? _attendanceCalendarFactory;
+    private readonly Func<AttendanceCalendarOptions, DrawingValue>? _absenceDayListFactory;
     private AttendanceCalendarOptions _attendanceCalendarOptions = new(
         new DateOnly(DateTime.Today.Year, DateTime.Today.Month, 1), 1);
 
@@ -25,6 +26,7 @@ public partial class CreateLetterDialogViewModel : ObservableObject
     [ObservableProperty] private string _generationError = "";
     [ObservableProperty] private bool _canGenerate;
     [ObservableProperty] private bool _usesAttendanceCalendar;
+    [ObservableProperty] private bool _usesAbsenceDayList;
     [ObservableProperty] private bool _attendanceCalendarConfigured;
     [ObservableProperty] private string _attendanceCalendarSummary = "1 Monat · Standardgröße";
 
@@ -36,15 +38,18 @@ public partial class CreateLetterDialogViewModel : ObservableObject
     public bool HasIssues => Issues.Count > 0;
     public bool HasNoTemplates => Templates.Count == 0;
     public bool HasNoContacts => Contacts.Count == 0;
+    public bool UsesAttendanceAdvancedContent => UsesAttendanceCalendar || UsesAbsenceDayList;
     public string SuggestedFileName => SanitizeFileName(
         $"{SelectedTemplate?.Name ?? "Elternbrief"}_{_student.LastName}_{_student.FirstName}.pdf");
 
     public CreateLetterDialogViewModel(Student student, TemplateStore templates, ITemplateRenderer renderer,
         IGroupMembershipRepository memberships, IGroupRepository groups,
-        Func<AttendanceCalendarOptions, DrawingValue>? attendanceCalendarFactory = null)
+        Func<AttendanceCalendarOptions, DrawingValue>? attendanceCalendarFactory = null,
+        Func<AttendanceCalendarOptions, DrawingValue>? absenceDayListFactory = null)
     {
         _student = student; _templates = templates; _renderer = renderer;
         _attendanceCalendarFactory = attendanceCalendarFactory;
+        _absenceDayListFactory = absenceDayListFactory;
         foreach (var template in templates.GetTemplates()) Templates.Add(new(template));
         foreach (var contact in student.Contacts.Where(c => !c.InvalidSince.HasValue).OrderBy(c => c.Name)) Contacts.Add(new(contact));
         foreach (var membership in memberships.GetByStudent(student.Id))
@@ -56,7 +61,11 @@ public partial class CreateLetterDialogViewModel : ObservableObject
     partial void OnSelectedTemplateChanged(LetterTemplateChoice? value)
     {
         OnPropertyChanged(nameof(SuggestedFileName));
-        UsesAttendanceCalendar = TemplateUsesAttendanceCalendar(value);
+        UsesAttendanceCalendar = TemplateUsesPlaceholder(value,
+            StudentAttendanceCalendarDrawingBuilder.PlaceholderName);
+        UsesAbsenceDayList = TemplateUsesPlaceholder(value,
+            StudentAbsenceDayListDrawingBuilder.PlaceholderName);
+        OnPropertyChanged(nameof(UsesAttendanceAdvancedContent));
         AttendanceCalendarConfigured = false;
         ResetAttendanceCalendarOptions();
         RefreshValidation();
@@ -111,7 +120,8 @@ public partial class CreateLetterDialogViewModel : ObservableObject
     private IReadOnlyDictionary<string, PlaceholderValue> BuildValues() => LetterPlaceholderBuilder.BuildStandardValues(
         _student, SelectedContact?.Model, SelectedGroup?.Model,
         DateOnly.FromDateTime((LetterDate ?? DateTimeOffset.Now).LocalDateTime), LetterText, TeacherName,
-        UsesAttendanceCalendar ? _attendanceCalendarFactory?.Invoke(_attendanceCalendarOptions) : null);
+        UsesAttendanceCalendar ? _attendanceCalendarFactory?.Invoke(_attendanceCalendarOptions) : null,
+        UsesAbsenceDayList ? _absenceDayListFactory?.Invoke(_attendanceCalendarOptions) : null);
 
     public AttendanceCalendarOptions GetAttendanceCalendarOptions() => _attendanceCalendarOptions;
 
@@ -131,14 +141,14 @@ public partial class CreateLetterDialogViewModel : ObservableObject
         AttendanceCalendarSummary = FormatAttendanceCalendarSummary(_attendanceCalendarOptions);
     }
 
-    private bool TemplateUsesAttendanceCalendar(LetterTemplateChoice? choice)
+    private bool TemplateUsesPlaceholder(LetterTemplateChoice? choice, string placeholderName)
     {
         if (choice is null) return false;
         try
         {
             var loaded = _templates.Load(choice.Model);
-            return UsesPlaceholder(loaded.Layout) ||
-                   (loaded.ContinuationLayout is not null && UsesPlaceholder(loaded.ContinuationLayout));
+            return UsesPlaceholder(loaded.Layout, placeholderName) ||
+                   (loaded.ContinuationLayout is not null && UsesPlaceholder(loaded.ContinuationLayout, placeholderName));
         }
         catch (Exception ex) when (ex is IOException or InvalidDataException or TemplateValidationException)
         {
@@ -146,11 +156,11 @@ public partial class CreateLetterDialogViewModel : ObservableObject
         }
     }
 
-    private static bool UsesPlaceholder(TemplateLayout layout) =>
+    private static bool UsesPlaceholder(TemplateLayout layout, string placeholderName) =>
         layout.Elements.Concat(layout.PageTemplates.SelectMany(p => p.Elements))
             .Concat(layout.ContentFlows.SelectMany(f => f.Elements))
-            .Any(e => e is DrawBoxElement { Placeholder: StudentAttendanceCalendarDrawingBuilder.PlaceholderName }
-                   or FlowDrawBoxElement { Placeholder: StudentAttendanceCalendarDrawingBuilder.PlaceholderName });
+            .Any(e => e is DrawBoxElement draw && draw.Placeholder == placeholderName ||
+                      e is FlowDrawBoxElement flow && flow.Placeholder == placeholderName);
 
     private static string FormatAttendanceCalendarSummary(AttendanceCalendarOptions options)
     {