show classname instead of teacher name in teacher timetable view

lib/widget_data/widget_data.dart

@@ -28,6 +28,9 @@ abstract class WidgetLesson with _$WidgetLesson {
     required String subjectShort,
     String? subjectLong,
     String? room,
+    /// On teacher accounts this carries the class label ("7a") instead of the
+    /// teacher short name — see `WidgetDataMapper` `showClassInsteadOfTeacher`;
+    /// [originalTeacher] is null in that case.
     String? teacher,
     String? originalTeacher,
     required WidgetLessonStatus status,

lib/widget_data/widget_data_mapper.dart

@@ -10,6 +10,7 @@ import '../api/marianumconnect/queries/timetable_get_week/timetable_get_week_res
 import '../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
 import '../api/mhsl/custom_timetable_event/get/get_custom_timetable_event_response.dart';
 import '../extensions/date_time.dart';
+import '../view/pages/timetable/data/lesson_labels.dart';
 import '../view/pages/timetable/data/lesson_merger.dart';
 import '../view/pages/timetable/data/lesson_period_schedule.dart';
 import '../view/pages/timetable/data/lesson_status.dart';
@@ -58,6 +59,7 @@ class WidgetDataMapper {
     TimetableGetTimegridResponse? timegrid,
     GetCustomTimetableEventResponse? customEvents,
     bool connectDoubleLessons = true,
+    bool showClassInsteadOfTeacher = false,
   }) {
     final anchor = resolveDayAnchor(now);
     final holiday = _findHoliday(anchor, holidays);
@@ -68,7 +70,13 @@ class WidgetDataMapper {
         ? LessonMerger.merge(dayLessons)
         : dayLessons;
     final mapped = <WidgetLesson>[
-      ...source.map((l) => _mapLesson(l, now, subjects, rooms)),
+      ..._mapAll(
+        source,
+        now,
+        subjects,
+        rooms,
+        showClassInsteadOfTeacher: showClassInsteadOfTeacher,
+      ),
       ..._expandCustomEvents(customEvents, dayStart, dayEnd),
     ]..sort((a, b) => a.start.compareTo(b.start));
     return WidgetTimetableData(
@@ -90,6 +98,7 @@ class WidgetDataMapper {
     TimetableGetTimegridResponse? timegrid,
     GetCustomTimetableEventResponse? customEvents,
     bool connectDoubleLessons = true,
+    bool showClassInsteadOfTeacher = false,
   }) {
     final anchor = resolveWeekAnchor(now);
     // The window is anchored at the *current* calendar week, not the
@@ -107,7 +116,13 @@ class WidgetDataMapper {
         ? _mergePerDay(weekLessons)
         : weekLessons;
     final mapped = <WidgetLesson>[
-      ...source.map((l) => _mapLesson(l, now, subjects, rooms)),
+      ..._mapAll(
+        source,
+        now,
+        subjects,
+        rooms,
+        showClassInsteadOfTeacher: showClassInsteadOfTeacher,
+      ),
       ..._expandCustomEvents(customEvents, windowStart, endExclusive),
     ]..sort((a, b) => a.start.compareTo(b.start));
     final days = [
@@ -282,12 +297,29 @@ class WidgetDataMapper {
     return [for (final group in byDay.values) ...LessonMerger.merge(group)];
   }
 
+  static Iterable<WidgetLesson> _mapAll(
+    Iterable<McTimetableEntry> source,
+    DateTime now,
+    TimetableGetSubjectsResponse? subjects,
+    TimetableGetRoomsResponse? rooms, {
+    required bool showClassInsteadOfTeacher,
+  }) => source.map(
+    (l) => _mapLesson(
+      l,
+      now,
+      subjects,
+      rooms,
+      showClassInsteadOfTeacher: showClassInsteadOfTeacher,
+    ),
+  );
+
   static WidgetLesson _mapLesson(
     McTimetableEntry lesson,
     DateTime now,
     TimetableGetSubjectsResponse? subjects,
-    TimetableGetRoomsResponse? rooms,
-  ) {
+    TimetableGetRoomsResponse? rooms, {
+    bool showClassInsteadOfTeacher = false,
+  }) {
     final start = lesson.startDateTime;
     final end = lesson.endDateTime;
     final status = _mapStatus(
@@ -314,8 +346,14 @@ class WidgetDataMapper {
           roomName;
     }
     final teacher = lesson.teachers.firstOrNull;
-    final teacherName = teacher?.shortName;
-    final originalTeacher = teacher?.originalShortName;
+    // Lehrerpläne: Klasse in den Teacher-Slot mappen, damit die nativen
+    // Renderer unverändert bleiben. Klassenlose Einträge (Aufsichten) behalten
+    // den Lehrer als Fallback.
+    final classLabel = showClassInsteadOfTeacher ? lesson.classLabel : null;
+    final teacherName = classLabel ?? teacher?.shortName;
+    final originalTeacher = classLabel != null
+        ? null
+        : teacher?.originalShortName;
     return WidgetLesson(
       start: start,
       end: end,

lib/widget_data/widget_publisher.dart

@@ -22,14 +22,18 @@ class WidgetPublisher {
   static Future<void> publishFromBlocState(
     TimetableState state, {
     Settings? settings,
+    bool isTeacher = false,
   }) async {
     try {
       final connectDouble =
           settings?.timetableSettings.connectDoubleLessons ?? true;
       // Mirror into widget storage so the background isolate sees the same
-      // value the user just toggled.
-      await WidgetSync.setConnectDoubleLessons(connectDouble);
-      await WidgetSync.setThemeMode(_themeName(settings?.appTheme));
+      // values the user just toggled — concurrently, they are independent.
+      await Future.wait([
+        WidgetSync.setConnectDoubleLessons(connectDouble),
+        WidgetSync.setThemeMode(_themeName(settings?.appTheme)),
+        WidgetSync.setIsTeacher(isTeacher),
+      ]);
       final lessons = state.getAllKnownLessons();
       final now = widgetNow();
       final dayData = WidgetDataMapper.buildDayData(
@@ -41,6 +45,7 @@ class WidgetPublisher {
         timegrid: state.timegrid,
         customEvents: state.customEvents,
         connectDoubleLessons: connectDouble,
+        showClassInsteadOfTeacher: isTeacher,
       );
       final weekData = WidgetDataMapper.buildWeekData(
         now: now,
@@ -51,6 +56,7 @@ class WidgetPublisher {
         timegrid: state.timegrid,
         customEvents: state.customEvents,
         connectDoubleLessons: connectDouble,
+        showClassInsteadOfTeacher: isTeacher,
       );
       await WidgetSync.writeDayData(dayData);
       await WidgetSync.writeWeekData(weekData);

lib/widget_data/widget_sync.dart

@@ -31,6 +31,9 @@ class WidgetSync {
   static const String connectDoubleLessonsKey =
       'widget_setting_connect_double_lessons_v1';
   static const String themeModeKey = 'widget_setting_theme_mode_v1';
+  // Mirrored from CapabilitiesCubit so the background isolate can render
+  // teacher plans (class instead of teacher name) without bloc storage.
+  static const String isTeacherKey = 'widget_setting_is_teacher_v1';
   // Mirrored so the background isolate hits the same Marianum-Connect base
   // URL the in-app settings cubit currently has selected.
   static const String marianumConnectBaseUrlKey = 'widget_setting_mc_base_url_v1';
@@ -58,25 +61,30 @@ class WidgetSync {
     );
   }
 
-  static Future<void> setLoggedIn(bool loggedIn) async {
-    await ensureInitialized();
-    await HomeWidget.saveWidgetData<bool>(loggedInKey, loggedIn);
-  }
+  static Future<void> setLoggedIn(bool loggedIn) =>
+      _setBool(loggedInKey, loggedIn);
 
-  static Future<void> setConnectDoubleLessons(bool value) async {
-    await ensureInitialized();
-    await HomeWidget.saveWidgetData<bool>(connectDoubleLessonsKey, value);
-  }
+  static Future<void> setConnectDoubleLessons(bool value) =>
+      _setBool(connectDoubleLessonsKey, value);
 
   /// Default `true` matches `default_settings.dart` — fresh install behaves
   /// like the in-app calendar.
-  static Future<bool> getConnectDoubleLessons() async {
+  static Future<bool> getConnectDoubleLessons() =>
+      _getBool(connectDoubleLessonsKey, defaultValue: true);
+
+  static Future<void> setIsTeacher(bool value) => _setBool(isTeacherKey, value);
+
+  static Future<bool> getIsTeacher() =>
+      _getBool(isTeacherKey, defaultValue: false);
+
+  static Future<void> _setBool(String key, bool value) async {
     await ensureInitialized();
-    final value = await HomeWidget.getWidgetData<bool>(
-      connectDoubleLessonsKey,
-      defaultValue: true,
-    );
-    return value ?? true;
+    await HomeWidget.saveWidgetData<bool>(key, value);
+  }
+
+  static Future<bool> _getBool(String key, {required bool defaultValue}) async {
+    await ensureInitialized();
+    return await HomeWidget.getWidgetData<bool>(key) ?? defaultValue;
   }
 
   static Future<void> setThemeMode(String mode) async {