refactored timetable

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart

@@ -8,7 +8,17 @@ import 'getCustomTimetableEventResponse.dart';
 class GetCustomTimetableEventCache extends RequestCache<GetCustomTimetableEventResponse> {
   GetCustomTimetableEventParams params;
 
-  GetCustomTimetableEventCache(this.params, {onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
+  GetCustomTimetableEventCache(
+    this.params, {
+    void Function(GetCustomTimetableEventResponse)? onUpdate,
+    void Function(Exception)? onError,
+    bool? renew,
+  }) : super(
+          RequestCache.cacheMinute,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('customTimetableEvents');
   }
 

lib/api/requestCache.dart

@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:convert';
 
 import 'package:localstore/localstore.dart';
@@ -17,11 +18,20 @@ abstract class RequestCache<T extends ApiResponse?> {
   void Function(Exception) onError;
   bool? renew;
 
+  final Completer<void> _ready = Completer<void>();
+
+  /// Resolves when [start] has finished, regardless of whether the network
+  /// call succeeded, failed, or was skipped due to a fresh cache. Callers
+  /// can await this to know when both the cache lookup and the network
+  /// attempt have settled.
+  Future<void> get ready => _ready.future;
+
   RequestCache(this.maxCacheTime, this.onUpdate, {this.onError = ignore, this.renew = false});
 
   static void ignore(Exception e) {}
 
   Future<void> start(String document) async {
+    try {
       final tableData = await Localstore.instance.collection(collection).doc(document).get();
       if (tableData != null) {
         onUpdate?.call(onLocalData(tableData['json']));
@@ -41,6 +51,9 @@ abstract class RequestCache<T extends ApiResponse?> {
       } on Exception catch (e) {
         onError(e);
       }
+    } finally {
+      if (!_ready.isCompleted) _ready.complete();
+    }
   }
 
   T onLocalData(String json);

lib/api/webuntis/queries/authenticate/authenticate.dart

@@ -14,11 +14,23 @@ class Authenticate extends WebuntisApi {
   @override
   Future<AuthenticateResponse> run() async {
     awaitingResponse = true;
+    try {
       var rawAnswer = await query(this);
       AuthenticateResponse response = finalize(AuthenticateResponse.fromJson(jsonDecode(rawAnswer)['result']));
       _lastResponse = response;
       if(!awaitedResponse.isCompleted) awaitedResponse.complete();
       return response;
+    } catch (e) {
+      // Surface the error to anyone waiting on the current completer, then
+      // install a fresh one so a future attempt can succeed. Without this,
+      // any later call to getSession() would hang forever on a completer
+      // that is already settled with no listeners (or never settles at all).
+      if(!awaitedResponse.isCompleted) awaitedResponse.completeError(e);
+      awaitedResponse = Completer();
+      rethrow;
+    } finally {
+      awaitingResponse = false;
+    }
   }
 
   static bool awaitingResponse = false;

lib/api/webuntis/queries/getHolidays/getHolidaysCache.dart

@@ -5,7 +5,16 @@ import 'getHolidays.dart';
 import 'getHolidaysResponse.dart';
 
 class GetHolidaysCache extends RequestCache<GetHolidaysResponse> {
-  GetHolidaysCache({void Function(GetHolidaysResponse)? onUpdate}) : super(RequestCache.cacheDay, onUpdate) {
+  GetHolidaysCache({
+    void Function(GetHolidaysResponse)? onUpdate,
+    void Function(Exception)? onError,
+    bool? renew,
+  }) : super(
+          RequestCache.cacheDay,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('wu-holidays');
   }
 

lib/api/webuntis/queries/getRooms/getRoomsCache.dart

@@ -5,7 +5,16 @@ import 'getRooms.dart';
 import 'getRoomsResponse.dart';
 
 class GetRoomsCache extends RequestCache<GetRoomsResponse> {
-  GetRoomsCache({void Function(GetRoomsResponse)? onUpdate}) : super(RequestCache.cacheHour, onUpdate) {
+  GetRoomsCache({
+    void Function(GetRoomsResponse)? onUpdate,
+    void Function(Exception)? onError,
+    bool? renew,
+  }) : super(
+          RequestCache.cacheHour,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('wu-rooms');
   }
 

lib/api/webuntis/queries/getSubjects/getSubjectsCache.dart

@@ -5,7 +5,16 @@ import 'getSubjects.dart';
 import 'getSubjectsResponse.dart';
 
 class GetSubjectsCache extends RequestCache<GetSubjectsResponse> {
-  GetSubjectsCache({void Function(GetSubjectsResponse)? onUpdate}) : super(RequestCache.cacheHour, onUpdate) {
+  GetSubjectsCache({
+    void Function(GetSubjectsResponse)? onUpdate,
+    void Function(Exception)? onError,
+    bool? renew,
+  }) : super(
+          RequestCache.cacheHour,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('wu-subjects');
   }
 

lib/api/webuntis/queries/getTimegridUnits/getTimegridUnits.dart

@@ -0,0 +1,22 @@
+import 'dart:convert';
+import 'dart:developer';
+
+import '../../webuntisApi.dart';
+import 'getTimegridUnitsResponse.dart';
+
+class GetTimegridUnits extends WebuntisApi {
+  GetTimegridUnits() : super('getTimegridUnits', null);
+
+  @override
+  Future<GetTimegridUnitsResponse> run() async {
+    var rawAnswer = await query(this);
+    try {
+      return finalize(GetTimegridUnitsResponse.fromJson(jsonDecode(rawAnswer)));
+    } catch (e, trace) {
+      log(trace.toString());
+      log('Failed to parse getTimegridUnits data with server response: $rawAnswer');
+    }
+
+    throw Exception('Failed to parse getTimegridUnits server response: $rawAnswer');
+  }
+}

lib/api/webuntis/queries/getTimegridUnits/getTimegridUnitsCache.dart

@@ -0,0 +1,20 @@
+import 'dart:convert';
+
+import '../../../requestCache.dart';
+import 'getTimegridUnits.dart';
+import 'getTimegridUnitsResponse.dart';
+
+class GetTimegridUnitsCache extends RequestCache<GetTimegridUnitsResponse> {
+  GetTimegridUnitsCache({
+    void Function(GetTimegridUnitsResponse)? onUpdate,
+    bool? renew,
+  }) : super(RequestCache.cacheDay, onUpdate, renew: renew) {
+    start('wu-timegrid');
+  }
+
+  @override
+  Future<GetTimegridUnitsResponse> onLoad() => GetTimegridUnits().run();
+
+  @override
+  GetTimegridUnitsResponse onLocalData(String json) => GetTimegridUnitsResponse.fromJson(jsonDecode(json));
+}

lib/api/webuntis/queries/getTimegridUnits/getTimegridUnitsResponse.dart

@@ -0,0 +1,38 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../apiResponse.dart';
+
+part 'getTimegridUnitsResponse.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class GetTimegridUnitsResponse extends ApiResponse {
+  List<GetTimegridUnitsResponseDay> result;
+
+  GetTimegridUnitsResponse(this.result);
+
+  factory GetTimegridUnitsResponse.fromJson(Map<String, dynamic> json) => _$GetTimegridUnitsResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$GetTimegridUnitsResponseToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class GetTimegridUnitsResponseDay {
+  int day;
+  List<GetTimegridUnitsResponseUnit> timeUnits;
+
+  GetTimegridUnitsResponseDay(this.day, this.timeUnits);
+
+  factory GetTimegridUnitsResponseDay.fromJson(Map<String, dynamic> json) => _$GetTimegridUnitsResponseDayFromJson(json);
+  Map<String, dynamic> toJson() => _$GetTimegridUnitsResponseDayToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class GetTimegridUnitsResponseUnit {
+  String name;
+  int startTime;
+  int endTime;
+
+  GetTimegridUnitsResponseUnit(this.name, this.startTime, this.endTime);
+
+  factory GetTimegridUnitsResponseUnit.fromJson(Map<String, dynamic> json) => _$GetTimegridUnitsResponseUnitFromJson(json);
+  Map<String, dynamic> toJson() => _$GetTimegridUnitsResponseUnitToJson(this);
+}

lib/api/webuntis/queries/getTimegridUnits/getTimegridUnitsResponse.g.dart

@@ -0,0 +1,64 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'getTimegridUnitsResponse.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+GetTimegridUnitsResponse _$GetTimegridUnitsResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    GetTimegridUnitsResponse(
+        (json['result'] as List<dynamic>)
+            .map(
+              (e) => GetTimegridUnitsResponseDay.fromJson(
+                e as Map<String, dynamic>,
+              ),
+            )
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$GetTimegridUnitsResponseToJson(
+  GetTimegridUnitsResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'result': instance.result.map((e) => e.toJson()).toList(),
+};
+
+GetTimegridUnitsResponseDay _$GetTimegridUnitsResponseDayFromJson(
+  Map<String, dynamic> json,
+) => GetTimegridUnitsResponseDay(
+  (json['day'] as num).toInt(),
+  (json['timeUnits'] as List<dynamic>)
+      .map(
+        (e) => GetTimegridUnitsResponseUnit.fromJson(e as Map<String, dynamic>),
+      )
+      .toList(),
+);
+
+Map<String, dynamic> _$GetTimegridUnitsResponseDayToJson(
+  GetTimegridUnitsResponseDay instance,
+) => <String, dynamic>{
+  'day': instance.day,
+  'timeUnits': instance.timeUnits.map((e) => e.toJson()).toList(),
+};
+
+GetTimegridUnitsResponseUnit _$GetTimegridUnitsResponseUnitFromJson(
+  Map<String, dynamic> json,
+) => GetTimegridUnitsResponseUnit(
+  json['name'] as String,
+  (json['startTime'] as num).toInt(),
+  (json['endTime'] as num).toInt(),
+);
+
+Map<String, dynamic> _$GetTimegridUnitsResponseUnitToJson(
+  GetTimegridUnitsResponseUnit instance,
+) => <String, dynamic>{
+  'name': instance.name,
+  'startTime': instance.startTime,
+  'endTime': instance.endTime,
+};

lib/api/webuntis/queries/getTimetable/getTimetableCache.dart

@@ -15,7 +15,13 @@ class GetTimetableCache extends RequestCache<GetTimetableResponse> {
     void Function(Exception)? onError,
     required this.startdate,
     required this.enddate,
-  }) : super(RequestCache.cacheMinute, onUpdate, onError: onError ?? RequestCache.ignore) {
+    bool? renew,
+  }) : super(
+          RequestCache.cacheMinute,
+          onUpdate,
+          onError: onError ?? RequestCache.ignore,
+          renew: renew,
+        ) {
     start('wu-timetable-$startdate-$enddate');
   }
 

lib/state/app/modules/timetable/bloc/timetable_bloc.dart

@@ -14,6 +14,16 @@ class TimetableBloc extends LoadableHydratedBloc<TimetableEvent, TimetableState,
 
   DateTime _lastWeekRequestStart = DateTime.fromMillisecondsSinceEpoch(0);
 
+  /// Set by [retry] to force the next [gatherData] to bypass cache freshness
+  /// checks and actually hit the network. Cleared at the top of [gatherData].
+  bool _forceRenew = false;
+
+  @override
+  void retry() {
+    _forceRenew = true;
+    super.retry();
+  }
+
   @override
   TimetableRepository repository() => TimetableRepository();
 
@@ -35,11 +45,23 @@ class TimetableBloc extends LoadableHydratedBloc<TimetableEvent, TimetableState,
   @override
   Future<void> gatherData() async {
     final initial = innerState ?? fromNothing();
+    final renew = _forceRenew;
+    _forceRenew = false;
+
+    Object? firstError;
+    void recordError(Object e) {
+      firstError ??= e;
+    }
+
     await Future.wait([
-      _loadCurrentWeek(initial.startDate, initial.endDate),
+      _loadCurrentWeek(initial.startDate, initial.endDate, onError: recordError, renew: renew),
-      _loadStaticReferenceData(),
+      _loadStaticReferenceData(onError: recordError, renew: renew),
-      _loadCustomEvents(),
+      _loadCustomEvents(onError: recordError, renew: renew),
     ]);
+
+    if (firstError != null) throw firstError!;
+
+    add(DataGathered((s) => s));
     _prefetchAdjacentWeeks(initial.startDate, initial.endDate);
   }
 
@@ -73,41 +95,69 @@ class TimetableBloc extends LoadableHydratedBloc<TimetableEvent, TimetableState,
     await _refreshCustomEvents();
   }
 
-  Future<void> _loadCurrentWeek(DateTime startDate, DateTime endDate) async {
+  Future<void> _loadCurrentWeek(
+    DateTime startDate,
+    DateTime endDate, {
+    void Function(Object)? onError,
+    bool renew = false,
+  }) async {
     final requestStart = DateTime.now();
     _lastWeekRequestStart = requestStart;
     try {
-      final week = await repo.data.getWeek(startDate, endDate);
+      final week = await repo.data.getWeek(startDate, endDate, onError: onError, renew: renew);
       if (_lastWeekRequestStart.isAfter(requestStart)) return;
       _writeWeekToCache(startDate, week);
-    } catch (_) {
+    } catch (e) {
-      // Errors are surfaced via LoadableHydratedBloc.fetch's catchError.
+      onError?.call(e);
-      rethrow;
     }
   }
 
-  Future<void> _loadStaticReferenceData() async {
+  Future<void> _loadStaticReferenceData({
+    void Function(Object)? onError,
+    bool renew = false,
+  }) async {
+    try {
       final (rooms, subjects, schoolHolidays) = await (
-      repo.data.getRooms(),
+        repo.data.getRooms(onError: onError, renew: renew),
-      repo.data.getSubjects(),
+        repo.data.getSubjects(onError: onError, renew: renew),
-      repo.data.getSchoolHolidays(),
+        repo.data.getSchoolHolidays(onError: onError, renew: renew),
       ).wait;
 
-    add(DataGathered((s) => s.copyWith(
+      add(Emit((s) => s.copyWith(
             rooms: rooms,
             subjects: subjects,
             schoolHolidays: schoolHolidays,
             dataVersion: s.dataVersion + 1,
           )));
+    } catch (e) {
+      onError?.call(e);
     }
 
-  Future<void> _loadCustomEvents({bool renew = false}) async {
+    try {
-    final events = await repo.data.getCustomEvents(renew: renew);
+      final timegrid = await repo.data.getTimegrid(renew: renew);
+      add(Emit((s) => s.copyWith(timegrid: timegrid, dataVersion: s.dataVersion + 1)));
+    } catch (_) {
+      // Timegrid load failure falls back to a hardcoded schedule in the UI layer.
+    }
+  }
+
+  Future<void> _loadCustomEvents({
+    void Function(Object)? onError,
+    bool renew = false,
+  }) async {
+    try {
+      final events = await repo.data.getCustomEvents(renew: renew, onError: onError);
+      add(Emit((s) => s.copyWith(customEvents: events, dataVersion: s.dataVersion + 1)));
+    } catch (e) {
+      onError?.call(e);
+    }
+  }
+
+  Future<void> _refreshCustomEvents() async {
+    final events = await repo.data.getCustomEvents(renew: true);
     add(DataGathered((s) => s.copyWith(customEvents: events, dataVersion: s.dataVersion + 1)));
   }
 
-  Future<void> _refreshCustomEvents() => _loadCustomEvents(renew: true);
-
   void _prefetchAdjacentWeeks(DateTime start, DateTime end) {
     _prefetchWeek(start.subtract(_weekSpan), end.subtract(_weekSpan));
     _prefetchWeek(start.add(_weekSpan), end.add(_weekSpan));
@@ -119,7 +169,7 @@ class TimetableBloc extends LoadableHydratedBloc<TimetableEvent, TimetableState,
 
   void _writeWeekToCache(DateTime weekStart, GetTimetableResponse week) {
     final key = _weekKeyFormat.format(weekStart);
-    add(DataGathered((s) {
+    add(Emit((s) {
       final updated = Map<String, GetTimetableResponse>.of(s.weekCache);
       updated[key] = week;
       return s.copyWith(weekCache: updated, dataVersion: s.dataVersion + 1);

lib/state/app/modules/timetable/bloc/timetable_state.dart

@@ -4,6 +4,7 @@ import '../../../../../api/mhsl/customTimetableEvent/get/getCustomTimetableEvent
 import '../../../../../api/webuntis/queries/getHolidays/getHolidaysResponse.dart';
 import '../../../../../api/webuntis/queries/getRooms/getRoomsResponse.dart';
 import '../../../../../api/webuntis/queries/getSubjects/getSubjectsResponse.dart';
+import '../../../../../api/webuntis/queries/getTimegridUnits/getTimegridUnitsResponse.dart';
 import '../../../../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
 
 part 'timetable_state.freezed.dart';
@@ -18,6 +19,7 @@ abstract class TimetableState with _$TimetableState {
     GetRoomsResponse? rooms,
     GetSubjectsResponse? subjects,
     GetHolidaysResponse? schoolHolidays,
+    GetTimegridUnitsResponse? timegrid,
     GetCustomTimetableEventResponse? customEvents,
     required DateTime startDate,
     required DateTime endDate,

lib/state/app/modules/timetable/bloc/timetable_state.freezed.dart

@@ -15,7 +15,7 @@ T _$identity<T>(T value) => value;
 /// @nodoc
 mixin _$TimetableState {
 
- Map<String, GetTimetableResponse> get weekCache; GetRoomsResponse? get rooms; GetSubjectsResponse? get subjects; GetHolidaysResponse? get schoolHolidays; GetCustomTimetableEventResponse? get customEvents; DateTime get startDate; DateTime get endDate; int get dataVersion;
+ Map<String, GetTimetableResponse> get weekCache; GetRoomsResponse? get rooms; GetSubjectsResponse? get subjects; GetHolidaysResponse? get schoolHolidays; GetTimegridUnitsResponse? get timegrid; GetCustomTimetableEventResponse? get customEvents; DateTime get startDate; DateTime get endDate; int get dataVersion;
 /// Create a copy of TimetableState
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -28,16 +28,16 @@ $TimetableStateCopyWith<TimetableState> get copyWith => _$TimetableStateCopyWith
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is TimetableState&&const DeepCollectionEquality().equals(other.weekCache, weekCache)&&(identical(other.rooms, rooms) || other.rooms == rooms)&&(identical(other.subjects, subjects) || other.subjects == subjects)&&(identical(other.schoolHolidays, schoolHolidays) || other.schoolHolidays == schoolHolidays)&&(identical(other.customEvents, customEvents) || other.customEvents == customEvents)&&(identical(other.startDate, startDate) || other.startDate == startDate)&&(identical(other.endDate, endDate) || other.endDate == endDate)&&(identical(other.dataVersion, dataVersion) || other.dataVersion == dataVersion));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is TimetableState&&const DeepCollectionEquality().equals(other.weekCache, weekCache)&&(identical(other.rooms, rooms) || other.rooms == rooms)&&(identical(other.subjects, subjects) || other.subjects == subjects)&&(identical(other.schoolHolidays, schoolHolidays) || other.schoolHolidays == schoolHolidays)&&(identical(other.timegrid, timegrid) || other.timegrid == timegrid)&&(identical(other.customEvents, customEvents) || other.customEvents == customEvents)&&(identical(other.startDate, startDate) || other.startDate == startDate)&&(identical(other.endDate, endDate) || other.endDate == endDate)&&(identical(other.dataVersion, dataVersion) || other.dataVersion == dataVersion));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,const DeepCollectionEquality().hash(weekCache),rooms,subjects,schoolHolidays,customEvents,startDate,endDate,dataVersion);
+int get hashCode => Object.hash(runtimeType,const DeepCollectionEquality().hash(weekCache),rooms,subjects,schoolHolidays,timegrid,customEvents,startDate,endDate,dataVersion);
 
 @override
 String toString() {
-  return 'TimetableState(weekCache: $weekCache, rooms: $rooms, subjects: $subjects, schoolHolidays: $schoolHolidays, customEvents: $customEvents, startDate: $startDate, endDate: $endDate, dataVersion: $dataVersion)';
+  return 'TimetableState(weekCache: $weekCache, rooms: $rooms, subjects: $subjects, schoolHolidays: $schoolHolidays, timegrid: $timegrid, customEvents: $customEvents, startDate: $startDate, endDate: $endDate, dataVersion: $dataVersion)';
 }
 
 
@@ -48,7 +48,7 @@ abstract mixin class $TimetableStateCopyWith<$Res>  {
   factory $TimetableStateCopyWith(TimetableState value, $Res Function(TimetableState) _then) = _$TimetableStateCopyWithImpl;
 @useResult
 $Res call({
- Map<String, GetTimetableResponse> weekCache, GetRoomsResponse? rooms, GetSubjectsResponse? subjects, GetHolidaysResponse? schoolHolidays, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion
+ Map<String, GetTimetableResponse> weekCache, GetRoomsResponse? rooms, GetSubjectsResponse? subjects, GetHolidaysResponse? schoolHolidays, GetTimegridUnitsResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion
 });
 
 
@@ -65,13 +65,14 @@ class _$TimetableStateCopyWithImpl<$Res>
 
 /// Create a copy of TimetableState
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? timegrid = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,}) {
   return _then(_self.copyWith(
 weekCache: null == weekCache ? _self.weekCache : weekCache // ignore: cast_nullable_to_non_nullable
 as Map<String, GetTimetableResponse>,rooms: freezed == rooms ? _self.rooms : rooms // ignore: cast_nullable_to_non_nullable
 as GetRoomsResponse?,subjects: freezed == subjects ? _self.subjects : subjects // ignore: cast_nullable_to_non_nullable
 as GetSubjectsResponse?,schoolHolidays: freezed == schoolHolidays ? _self.schoolHolidays : schoolHolidays // ignore: cast_nullable_to_non_nullable
-as GetHolidaysResponse?,customEvents: freezed == customEvents ? _self.customEvents : customEvents // ignore: cast_nullable_to_non_nullable
+as GetHolidaysResponse?,timegrid: freezed == timegrid ? _self.timegrid : timegrid // ignore: cast_nullable_to_non_nullable
+as GetTimegridUnitsResponse?,customEvents: freezed == customEvents ? _self.customEvents : customEvents // ignore: cast_nullable_to_non_nullable
 as GetCustomTimetableEventResponse?,startDate: null == startDate ? _self.startDate : startDate // ignore: cast_nullable_to_non_nullable
 as DateTime,endDate: null == endDate ? _self.endDate : endDate // ignore: cast_nullable_to_non_nullable
 as DateTime,dataVersion: null == dataVersion ? _self.dataVersion : dataVersion // ignore: cast_nullable_to_non_nullable
@@ -160,10 +161,10 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _TimetableState() when $default != null:
-return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
+return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
   return orElse();
 
 }
@@ -181,10 +182,10 @@ return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)  $default,) {final _that = this;
 switch (_that) {
 case _TimetableState():
-return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
+return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
   throw StateError('Unexpected subclass');
 
 }
@@ -201,10 +202,10 @@ return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion)?  $default,) {final _that = this;
 switch (_that) {
 case _TimetableState() when $default != null:
-return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
+return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion);case _:
   return null;
 
 }
@@ -216,7 +217,7 @@ return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,
 @JsonSerializable()
 
 class _TimetableState extends TimetableState {
-  const _TimetableState({final  Map<String, GetTimetableResponse> weekCache = const <String, GetTimetableResponse>{}, this.rooms, this.subjects, this.schoolHolidays, this.customEvents, required this.startDate, required this.endDate, this.dataVersion = 0}): _weekCache = weekCache,super._();
+  const _TimetableState({final  Map<String, GetTimetableResponse> weekCache = const <String, GetTimetableResponse>{}, this.rooms, this.subjects, this.schoolHolidays, this.timegrid, this.customEvents, required this.startDate, required this.endDate, this.dataVersion = 0}): _weekCache = weekCache,super._();
   factory _TimetableState.fromJson(Map<String, dynamic> json) => _$TimetableStateFromJson(json);
 
  final  Map<String, GetTimetableResponse> _weekCache;
@@ -229,6 +230,7 @@ class _TimetableState extends TimetableState {
 @override final  GetRoomsResponse? rooms;
 @override final  GetSubjectsResponse? subjects;
 @override final  GetHolidaysResponse? schoolHolidays;
+@override final  GetTimegridUnitsResponse? timegrid;
 @override final  GetCustomTimetableEventResponse? customEvents;
 @override final  DateTime startDate;
 @override final  DateTime endDate;
@@ -247,16 +249,16 @@ Map<String, dynamic> toJson() {
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is _TimetableState&&const DeepCollectionEquality().equals(other._weekCache, _weekCache)&&(identical(other.rooms, rooms) || other.rooms == rooms)&&(identical(other.subjects, subjects) || other.subjects == subjects)&&(identical(other.schoolHolidays, schoolHolidays) || other.schoolHolidays == schoolHolidays)&&(identical(other.customEvents, customEvents) || other.customEvents == customEvents)&&(identical(other.startDate, startDate) || other.startDate == startDate)&&(identical(other.endDate, endDate) || other.endDate == endDate)&&(identical(other.dataVersion, dataVersion) || other.dataVersion == dataVersion));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _TimetableState&&const DeepCollectionEquality().equals(other._weekCache, _weekCache)&&(identical(other.rooms, rooms) || other.rooms == rooms)&&(identical(other.subjects, subjects) || other.subjects == subjects)&&(identical(other.schoolHolidays, schoolHolidays) || other.schoolHolidays == schoolHolidays)&&(identical(other.timegrid, timegrid) || other.timegrid == timegrid)&&(identical(other.customEvents, customEvents) || other.customEvents == customEvents)&&(identical(other.startDate, startDate) || other.startDate == startDate)&&(identical(other.endDate, endDate) || other.endDate == endDate)&&(identical(other.dataVersion, dataVersion) || other.dataVersion == dataVersion));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,const DeepCollectionEquality().hash(_weekCache),rooms,subjects,schoolHolidays,customEvents,startDate,endDate,dataVersion);
+int get hashCode => Object.hash(runtimeType,const DeepCollectionEquality().hash(_weekCache),rooms,subjects,schoolHolidays,timegrid,customEvents,startDate,endDate,dataVersion);
 
 @override
 String toString() {
-  return 'TimetableState(weekCache: $weekCache, rooms: $rooms, subjects: $subjects, schoolHolidays: $schoolHolidays, customEvents: $customEvents, startDate: $startDate, endDate: $endDate, dataVersion: $dataVersion)';
+  return 'TimetableState(weekCache: $weekCache, rooms: $rooms, subjects: $subjects, schoolHolidays: $schoolHolidays, timegrid: $timegrid, customEvents: $customEvents, startDate: $startDate, endDate: $endDate, dataVersion: $dataVersion)';
 }
 
 
@@ -267,7 +269,7 @@ abstract mixin class _$TimetableStateCopyWith<$Res> implements $TimetableStateCo
   factory _$TimetableStateCopyWith(_TimetableState value, $Res Function(_TimetableState) _then) = __$TimetableStateCopyWithImpl;
 @override @useResult
 $Res call({
- Map<String, GetTimetableResponse> weekCache, GetRoomsResponse? rooms, GetSubjectsResponse? subjects, GetHolidaysResponse? schoolHolidays, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion
+ Map<String, GetTimetableResponse> weekCache, GetRoomsResponse? rooms, GetSubjectsResponse? subjects, GetHolidaysResponse? schoolHolidays, GetTimegridUnitsResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion
 });
 
 
@@ -284,13 +286,14 @@ class __$TimetableStateCopyWithImpl<$Res>
 
 /// Create a copy of TimetableState
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? timegrid = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,}) {
   return _then(_TimetableState(
 weekCache: null == weekCache ? _self._weekCache : weekCache // ignore: cast_nullable_to_non_nullable
 as Map<String, GetTimetableResponse>,rooms: freezed == rooms ? _self.rooms : rooms // ignore: cast_nullable_to_non_nullable
 as GetRoomsResponse?,subjects: freezed == subjects ? _self.subjects : subjects // ignore: cast_nullable_to_non_nullable
 as GetSubjectsResponse?,schoolHolidays: freezed == schoolHolidays ? _self.schoolHolidays : schoolHolidays // ignore: cast_nullable_to_non_nullable
-as GetHolidaysResponse?,customEvents: freezed == customEvents ? _self.customEvents : customEvents // ignore: cast_nullable_to_non_nullable
+as GetHolidaysResponse?,timegrid: freezed == timegrid ? _self.timegrid : timegrid // ignore: cast_nullable_to_non_nullable
+as GetTimegridUnitsResponse?,customEvents: freezed == customEvents ? _self.customEvents : customEvents // ignore: cast_nullable_to_non_nullable
 as GetCustomTimetableEventResponse?,startDate: null == startDate ? _self.startDate : startDate // ignore: cast_nullable_to_non_nullable
 as DateTime,endDate: null == endDate ? _self.endDate : endDate // ignore: cast_nullable_to_non_nullable
 as DateTime,dataVersion: null == dataVersion ? _self.dataVersion : dataVersion // ignore: cast_nullable_to_non_nullable

lib/state/app/modules/timetable/bloc/timetable_state.g.dart

@@ -29,6 +29,11 @@ _TimetableState _$TimetableStateFromJson(Map<String, dynamic> json) =>
           : GetHolidaysResponse.fromJson(
               json['schoolHolidays'] as Map<String, dynamic>,
             ),
+      timegrid: json['timegrid'] == null
+          ? null
+          : GetTimegridUnitsResponse.fromJson(
+              json['timegrid'] as Map<String, dynamic>,
+            ),
       customEvents: json['customEvents'] == null
           ? null
           : GetCustomTimetableEventResponse.fromJson(
@@ -45,6 +50,7 @@ Map<String, dynamic> _$TimetableStateToJson(_TimetableState instance) =>
       'rooms': instance.rooms,
       'subjects': instance.subjects,
       'schoolHolidays': instance.schoolHolidays,
+      'timegrid': instance.timegrid,
       'customEvents': instance.customEvents,
       'startDate': instance.startDate.toIso8601String(),
       'endDate': instance.endDate.toIso8601String(),

lib/state/app/modules/timetable/dataProvider/timetable_data_provider.dart

@@ -1,5 +1,3 @@
-import 'dart:async';
-
 import 'package:intl/intl.dart';
 
 import '../../../../../api/mhsl/customTimetableEvent/add/addCustomTimetableEvent.dart';
@@ -18,6 +16,8 @@ import '../../../../../api/webuntis/queries/getRooms/getRoomsCache.dart';
 import '../../../../../api/webuntis/queries/getRooms/getRoomsResponse.dart';
 import '../../../../../api/webuntis/queries/getSubjects/getSubjectsCache.dart';
 import '../../../../../api/webuntis/queries/getSubjects/getSubjectsResponse.dart';
+import '../../../../../api/webuntis/queries/getTimegridUnits/getTimegridUnitsCache.dart';
+import '../../../../../api/webuntis/queries/getTimegridUnits/getTimegridUnitsResponse.dart';
 import '../../../../../api/webuntis/queries/getTimetable/getTimetableCache.dart';
 import '../../../../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
 import '../../../../../model/accountData.dart';
@@ -25,55 +25,116 @@ import '../../../../../model/accountData.dart';
 class TimetableDataProvider {
   static final DateFormat _dateFormat = DateFormat('yyyyMMdd');
 
-  Future<GetTimetableResponse> getWeek(DateTime startDate, DateTime endDate) {
+  Future<GetTimetableResponse> getWeek(
-    final completer = Completer<GetTimetableResponse>();
+    DateTime startDate,
-    GetTimetableCache(
+    DateTime endDate, {
+    void Function(Object)? onError,
+    bool renew = false,
+  }) async {
+    GetTimetableResponse? latest;
+    Object? capturedError;
+    final cache = GetTimetableCache(
       startdate: int.parse(_dateFormat.format(startDate)),
       enddate: int.parse(_dateFormat.format(endDate)),
-      onUpdate: (data) {
+      renew: renew,
-        if (!completer.isCompleted) completer.complete(data);
+      onUpdate: (data) => latest = data,
-      },
       onError: (e) {
-        if (!completer.isCompleted) completer.completeError(e);
+        capturedError = e;
+        onError?.call(e);
       },
     );
-    return completer.future;
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getWeek');
   }
 
-  Future<GetRoomsResponse> getRooms() {
+  Future<GetRoomsResponse> getRooms({
-    final completer = Completer<GetRoomsResponse>();
+    void Function(Object)? onError,
-    GetRoomsCache(onUpdate: (data) {
+    bool renew = false,
-      if (!completer.isCompleted) completer.complete(data);
+  }) async {
-    });
+    GetRoomsResponse? latest;
-    return completer.future;
+    Object? capturedError;
+    final cache = GetRoomsCache(
+      renew: renew,
+      onUpdate: (data) => latest = data,
+      onError: (e) {
+        capturedError = e;
+        onError?.call(e);
+      },
+    );
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getRooms');
   }
 
-  Future<GetSubjectsResponse> getSubjects() {
+  Future<GetSubjectsResponse> getSubjects({
-    final completer = Completer<GetSubjectsResponse>();
+    void Function(Object)? onError,
-    GetSubjectsCache(onUpdate: (data) {
+    bool renew = false,
-      if (!completer.isCompleted) completer.complete(data);
+  }) async {
-    });
+    GetSubjectsResponse? latest;
-    return completer.future;
+    Object? capturedError;
+    final cache = GetSubjectsCache(
+      renew: renew,
+      onUpdate: (data) => latest = data,
+      onError: (e) {
+        capturedError = e;
+        onError?.call(e);
+      },
+    );
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getSubjects');
   }
 
-  Future<GetHolidaysResponse> getSchoolHolidays() {
+  Future<GetHolidaysResponse> getSchoolHolidays({
-    final completer = Completer<GetHolidaysResponse>();
+    void Function(Object)? onError,
-    GetHolidaysCache(onUpdate: (data) {
+    bool renew = false,
-      if (!completer.isCompleted) completer.complete(data);
+  }) async {
-    });
+    GetHolidaysResponse? latest;
-    return completer.future;
+    Object? capturedError;
+    final cache = GetHolidaysCache(
+      renew: renew,
+      onUpdate: (data) => latest = data,
+      onError: (e) {
+        capturedError = e;
+        onError?.call(e);
+      },
+    );
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getSchoolHolidays');
   }
 
-  Future<GetCustomTimetableEventResponse> getCustomEvents({bool renew = false}) {
+  Future<GetTimegridUnitsResponse> getTimegrid({bool renew = false}) async {
-    final completer = Completer<GetCustomTimetableEventResponse>();
+    GetTimegridUnitsResponse? latest;
-    GetCustomTimetableEventCache(
+    Object? capturedError;
+    final cache = GetTimegridUnitsCache(
+      renew: renew,
+      onUpdate: (data) => latest = data,
+    );
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getTimegrid');
+  }
+
+  Future<GetCustomTimetableEventResponse> getCustomEvents({
+    bool renew = false,
+    void Function(Object)? onError,
+  }) async {
+    GetCustomTimetableEventResponse? latest;
+    Object? capturedError;
+    final cache = GetCustomTimetableEventCache(
       GetCustomTimetableEventParams(AccountData().getUserSecret()),
       renew: renew,
-      onUpdate: (data) {
+      onUpdate: (data) => latest = data,
-        if (!completer.isCompleted) completer.complete(data);
+      onError: (e) {
+        capturedError = e;
+        onError?.call(e);
       },
     );
-    return completer.future;
+    await cache.ready;
+    if (latest != null) return latest!;
+    throw capturedError ?? Exception('No data and no error from getCustomEvents');
   }
 
   Future<void> addCustomEvent(CustomTimetableEvent event) =>

lib/view/pages/timetable/custom_events/custom_event_edit_dialog.dart

@@ -15,17 +15,28 @@ import 'custom_event_colors.dart';
 
 class CustomEventEditDialog extends StatefulWidget {
   final CustomTimetableEvent? existingEvent;
+  final DateTime? initialStart;
+  final DateTime? initialEnd;
 
-  const CustomEventEditDialog({this.existingEvent, super.key});
+  const CustomEventEditDialog({
+    this.existingEvent,
+    this.initialStart,
+    this.initialEnd,
+    super.key,
+  });
 
   @override
   State<CustomEventEditDialog> createState() => _CustomEventEditDialogState();
 }
 
 class _CustomEventEditDialogState extends State<CustomEventEditDialog> {
-  late DateTime _date = widget.existingEvent?.startDate ?? DateTime.now();
+  late DateTime _date = widget.existingEvent?.startDate ?? widget.initialStart ?? DateTime.now();
-  late TimeOfDay _startTime = widget.existingEvent?.startDate.toTimeOfDay() ?? const TimeOfDay(hour: 8, minute: 0);
+  late TimeOfDay _startTime = widget.existingEvent?.startDate.toTimeOfDay() ??
-  late TimeOfDay _endTime = widget.existingEvent?.endDate.toTimeOfDay() ?? const TimeOfDay(hour: 9, minute: 30);
+      widget.initialStart?.toTimeOfDay() ??
+      const TimeOfDay(hour: 8, minute: 0);
+  late TimeOfDay _endTime = widget.existingEvent?.endDate.toTimeOfDay() ??
+      widget.initialEnd?.toTimeOfDay() ??
+      const TimeOfDay(hour: 9, minute: 30);
   late final TextEditingController _name = TextEditingController(text: widget.existingEvent?.title);
   late final TextEditingController _description = TextEditingController(text: widget.existingEvent?.description);
   late String _rrule = widget.existingEvent?.rrule ?? '';
@@ -167,13 +178,20 @@ class _CustomEventEditDialogState extends State<CustomEventEditDialog> {
               const Divider(),
               RRuleGenerator(
                 config: RRuleGeneratorConfig(
-                  headerEnabled: true,
+                  selectDayStyle: RRuleSelectDayStyle(
-                  weekdayBackgroundColor: Theme.of(context).colorScheme.secondary,
+                    dayStyle: BoxDecoration(
-                  weekdaySelectedBackgroundColor: Theme.of(context).primaryColor,
+                      shape: BoxShape.circle,
-                  weekdayColor: Colors.black,
+                      color: Theme.of(context).colorScheme.secondary,
+                    ),
+                    dayTextStyle: const TextStyle(color: Colors.black),
+                    selectedDayStyle: BoxDecoration(
+                      shape: BoxShape.circle,
+                      color: Theme.of(context).primaryColor,
+                    ),
+                  ),
                 ),
                 initialRRule: _rrule,
-                textDelegate: const GermanRRuleTextDelegate(),
+                locale: RRuleLocale.de_DE,
                 onChange: (newValue) {
                   log('Rule: $newValue');
                   setState(() => _rrule = newValue);

lib/view/pages/timetable/data/calendar_layout.dart

@@ -0,0 +1,8 @@
+const double kCalendarStartHour = 7.5;
+const double kCalendarEndHour = 17.25;
+const Duration kCalendarTimeInterval = Duration(minutes: 30);
+const double kCalendarViewHeaderHeight = 60;
+
+/// Minimum pixels per hour. Below this, the grid scrolls vertically rather
+/// than compressing further.
+const double kCalendarMinPxPerHour = 56;

lib/view/pages/timetable/data/lesson_color.dart

@@ -3,12 +3,14 @@ import 'package:flutter/material.dart';
 import 'lesson_status.dart';
 
 class LessonColor {
+  static const Color regular = Color.fromARGB(255, 153, 51, 51);
+  static const Color ongoing = Color.fromARGB(255, 200, 51, 51);
   static const Color cancelled = Color(0xff000000);
   static const Color irregular = Color(0xff8F19B3);
   static const Color teacherChanged = Color(0xFF29639B);
   static const Color parseFallback = Color(0xff404040);
 
-  static Color forStatus(LessonStatus status, ColorScheme scheme) {
+  static Color forStatus(LessonStatus status) {
     switch (status) {
       case LessonStatus.cancelled:
         return cancelled;
@@ -18,14 +20,9 @@ class LessonColor {
         return teacherChanged;
       case LessonStatus.past:
       case LessonStatus.regular:
-        return scheme.primary;
+        return regular;
       case LessonStatus.ongoing:
-        return Color.from(
+        return ongoing;
-          alpha: scheme.primary.a,
-          red: 200 / 255,
-          green: scheme.primary.g,
-          blue: scheme.primary.b,
-        );
     }
   }
 }

lib/view/pages/timetable/data/lesson_period_schedule.dart

@@ -0,0 +1,94 @@
+import 'package:flutter/material.dart';
+
+import '../../../../api/webuntis/queries/getTimegridUnits/getTimegridUnitsResponse.dart';
+import '../../../../state/app/modules/timetable/bloc/timetable_state.dart';
+
+class LessonPeriod {
+  final String name;
+  final TimeOfDay start;
+  final TimeOfDay end;
+  final bool isBreak;
+
+  const LessonPeriod({
+    required this.name,
+    required this.start,
+    required this.end,
+    this.isBreak = false,
+  });
+
+  Duration get duration => Duration(
+        minutes: (end.hour * 60 + end.minute) - (start.hour * 60 + start.minute),
+      );
+
+  int get _startMinutes => start.hour * 60 + start.minute;
+}
+
+class LessonPeriodSchedule {
+  final List<LessonPeriod> periods;
+
+  const LessonPeriodSchedule(this.periods);
+
+  static LessonPeriodSchedule? fromApi(GetTimegridUnitsResponse response) {
+    final canonical = response.result.firstWhere(
+      (d) => d.day == 1,
+      orElse: () => response.result.isNotEmpty ? response.result.first : GetTimegridUnitsResponseDay(0, []),
+    );
+    if (canonical.timeUnits.isEmpty) return null;
+
+    final periods = canonical.timeUnits
+        .map((u) => LessonPeriod(
+              name: u.name,
+              start: _fromHHMM(u.startTime),
+              end: _fromHHMM(u.endTime),
+            ))
+        .toList()
+      ..sort((a, b) => a._startMinutes.compareTo(b._startMinutes));
+
+    return LessonPeriodSchedule(periods);
+  }
+
+  static LessonPeriodSchedule fallback() => const LessonPeriodSchedule([
+      LessonPeriod(name: '0', start: TimeOfDay(hour: 7, minute: 10), end: TimeOfDay(hour: 7, minute: 53)),
+      LessonPeriod(name: '1', start: TimeOfDay(hour: 7, minute: 55), end: TimeOfDay(hour: 8, minute: 40)),
+      LessonPeriod(name: '2', start: TimeOfDay(hour: 8, minute: 40), end: TimeOfDay(hour: 9, minute: 25)),
+      LessonPeriod(name: '3', start: TimeOfDay(hour: 9, minute: 30), end: TimeOfDay(hour: 10, minute: 15)),
+      LessonPeriod(name: '4', start: TimeOfDay(hour: 10, minute: 35), end: TimeOfDay(hour: 11, minute: 20)),
+      LessonPeriod(name: '5', start: TimeOfDay(hour: 11, minute: 25), end: TimeOfDay(hour: 12, minute: 10)),
+      LessonPeriod(name: '6', start: TimeOfDay(hour: 12, minute: 15), end: TimeOfDay(hour: 13, minute: 0)),
+      LessonPeriod(name: '7', start: TimeOfDay(hour: 13, minute: 5), end: TimeOfDay(hour: 13, minute: 50)),
+      LessonPeriod(name: '8', start: TimeOfDay(hour: 14, minute: 5), end: TimeOfDay(hour: 14, minute: 50)),
+      LessonPeriod(name: '9', start: TimeOfDay(hour: 14, minute: 50), end: TimeOfDay(hour: 15, minute: 35)),
+      LessonPeriod(name: '10', start: TimeOfDay(hour: 15, minute: 40), end: TimeOfDay(hour: 16, minute: 25)),
+      LessonPeriod(name: '11', start: TimeOfDay(hour: 16, minute: 25), end: TimeOfDay(hour: 17, minute: 10)),
+    ]);
+
+  static LessonPeriodSchedule fromState(TimetableState state) {
+    final fromApi = state.timegrid != null ? LessonPeriodSchedule.fromApi(state.timegrid!) : null;
+    return (fromApi ?? fallback()).withSyntheticBreaks();
+  }
+
+  LessonPeriodSchedule withSyntheticBreaks() {
+    final result = <LessonPeriod>[];
+    for (var i = 0; i < periods.length; i++) {
+      final current = periods[i];
+      result.add(current);
+      if (i + 1 >= periods.length) continue;
+      final next = periods[i + 1];
+      final gapMinutes = next._startMinutes - (current.end.hour * 60 + current.end.minute);
+      if (gapMinutes >= 10) {
+        result.add(LessonPeriod(
+          name: 'Pause',
+          start: current.end,
+          end: next.start,
+          isBreak: true,
+        ));
+      }
+    }
+    return LessonPeriodSchedule(result);
+  }
+
+  static TimeOfDay _fromHHMM(int hhmm) => TimeOfDay(
+        hour: hhmm ~/ 100,
+        minute: hhmm % 100,
+      );
+}

lib/view/pages/timetable/data/timetable_appointment_factory.dart

@@ -1,5 +1,4 @@
 import 'package:collection/collection.dart';
-import 'package:flutter/material.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
 import '../../../../api/mhsl/customTimetableEvent/customTimetableEvent.dart';
@@ -20,7 +19,6 @@ class TimetableAppointmentFactory {
   final GetRoomsResponse rooms;
   final GetSubjectsResponse subjects;
   final TimetableSettings settings;
-  final ColorScheme colorScheme;
   final DateTime now;
 
   TimetableAppointmentFactory({
@@ -29,7 +27,6 @@ class TimetableAppointmentFactory {
     required this.rooms,
     required this.subjects,
     required this.settings,
-    required this.colorScheme,
     required this.now,
   });
 
@@ -54,7 +51,7 @@ class TimetableAppointmentFactory {
         subject: _subjectName(lesson),
         location: _locationLabel(lesson),
         notes: lesson.activityType,
-        color: LessonColor.forStatus(status, colorScheme),
+        color: LessonColor.forStatus(status),
       );
     } catch (_) {
       return Appointment(

lib/view/pages/timetable/timetable.dart

@@ -1,5 +1,3 @@
-import 'dart:async';
-
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
@@ -12,12 +10,11 @@ import '../../../state/app/modules/settings/bloc/settings_cubit.dart';
 import 'custom_events/custom_event_edit_dialog.dart';
 import 'custom_events/custom_events_view.dart';
 import 'data/arbitrary_appointment.dart';
+import 'data/lesson_period_schedule.dart';
 import 'data/timetable_appointment_factory.dart';
 import 'details/appointment_details_dispatcher.dart';
-import 'widgets/appointment_tile.dart';
+import 'widgets/custom_workweek_calendar.dart';
-import 'widgets/lesson_appointment_source.dart';
 import 'widgets/special_regions_builder.dart';
-import 'widgets/time_region_tile.dart';
 
 enum _CalendarAction { addEvent, viewEvents }
 
@@ -29,32 +26,15 @@ class Timetable extends StatefulWidget {
 }
 
 class _TimetableState extends State<Timetable> {
-  final CalendarController _controller = CalendarController();
+  final GlobalKey<CustomWorkWeekCalendarState> _calendarKey = GlobalKey<CustomWorkWeekCalendarState>();
-  late Timer _highlightTicker;
 
-  LessonAppointmentSource? _cachedSource;
+  List<Appointment>? _cachedAppointments;
   int? _lastDataVersion;
 
-  @override
-  void initState() {
-    super.initState();
-    _controller.displayDate = _initialDisplayDate();
-
-    _highlightTicker = Timer.periodic(const Duration(seconds: 30), (_) {
-      if (mounted) setState(() => _cachedSource = null);
-    });
-  }
-
-  @override
-  void dispose() {
-    _highlightTicker.cancel();
-    super.dispose();
-  }
-
   DateTime _initialDisplayDate() => DateTime.now().add(const Duration(days: 2));
 
   void _jumpToToday() {
-    _controller.displayDate = _initialDisplayDate();
+    _calendarKey.currentState?.jumpToDate(_initialDisplayDate());
   }
 
   void _onAction(_CalendarAction action) {
@@ -70,24 +50,27 @@ class _TimetableState extends State<Timetable> {
     }
   }
 
-  LessonAppointmentSource _appointmentSource(TimetableState state) {
+  List<Appointment> _appointments(TimetableState state) {
-    if (_cachedSource != null && _lastDataVersion == state.dataVersion) {
+    if (_cachedAppointments != null && _lastDataVersion == state.dataVersion) {
-      return _cachedSource!;
+      return _cachedAppointments!;
     }
     _lastDataVersion = state.dataVersion;
 
     final settings = context.read<SettingsCubit>();
-    final appointments = TimetableAppointmentFactory(
+    return _cachedAppointments = TimetableAppointmentFactory(
       lessons: state.getAllKnownLessons().toList(),
       customEvents: state.customEvents?.events ?? const [],
       rooms: state.rooms!,
       subjects: state.subjects!,
       settings: settings.val().timetableSettings,
-      colorScheme: Theme.of(context).colorScheme,
       now: DateTime.now(),
     ).build();
+  }
 
-    return _cachedSource = LessonAppointmentSource(appointments);
+  bool _isCrossedOut(Appointment appointment) {
+    final id = appointment.id;
+    if (id is WebuntisAppointment) return id.lesson.code == 'cancelled';
+    return false;
   }
 
   @override
@@ -126,54 +109,35 @@ class _TimetableState extends State<Timetable> {
   Widget _calendar(TimetableState state, TimetableBloc bloc) {
     if (!state.hasReferenceData) return const SizedBox.shrink();
 
-    return SfCalendar(
+    final schedule = LessonPeriodSchedule.fromState(state);
-      timeZone: 'W. Europe Standard Time',
+    final appointments = _appointments(state);
-      view: CalendarView.workWeek,
+    final regions = SpecialRegionsBuilder(
-      dataSource: _appointmentSource(state),
-      maxDate: DateTime.now().add(const Duration(days: 7)).nextWeekday(DateTime.saturday),
-      minDate: DateTime.now().subtract(const Duration(days: 14)).nextWeekday(DateTime.sunday),
-      controller: _controller,
-      onViewChanged: (details) {
-        WidgetsBinding.instance.addPostFrameCallback((_) {
-          if (!mounted) return;
-          bloc.changeWeek(details.visibleDates.first, details.visibleDates.last);
-        });
-      },
-      onTap: (tap) {
-        if (tap.appointments == null || tap.appointments!.isEmpty) return;
-        AppointmentDetailsDispatcher.show(context, bloc, tap.appointments!.first);
-      },
-      firstDayOfWeek: DateTime.monday,
-      specialRegions: SpecialRegionsBuilder(
       holidays: state.schoolHolidays!,
+      schedule: schedule,
       colorScheme: Theme.of(context).colorScheme,
       disabledColor: Theme.of(context).disabledColor,
-      ).build(),
+    ).build();
-      timeSlotViewSettings: const TimeSlotViewSettings(
+
-        startHour: 7.5,
+    return CustomWorkWeekCalendar(
-        endHour: 16.5,
+      key: _calendarKey,
-        timeInterval: Duration(minutes: 30),
+      schedule: schedule,
-        timeFormat: 'HH:mm',
+      appointments: appointments,
-        dayFormat: 'EE',
+      timeRegions: regions,
-        timeIntervalHeight: 40,
+      initialDate: _initialDisplayDate(),
-      ),
+      minDate: DateTime.now().subtract(const Duration(days: 14)).nextWeekday(DateTime.sunday),
-      timeRegionBuilder: (_, details) => TimeRegionTile(details: details),
+      maxDate: DateTime.now().add(const Duration(days: 7)).nextWeekday(DateTime.saturday),
-      appointmentBuilder: (_, details) => AppointmentTile(
+      onAppointmentTap: (apt) => AppointmentDetailsDispatcher.show(context, bloc, apt),
-        details: details,
+      onWeekChanged: (start, end) => bloc.changeWeek(start, end),
-        crossedOut: _isCrossedOut(details),
+      isCrossedOut: _isCrossedOut,
-      ),
+      onCreateEvent: _onCreateEventAt,
-      headerHeight: 0,
-      selectionDecoration: const BoxDecoration(),
-      allowAppointmentResize: false,
-      allowDragAndDrop: false,
-      allowViewNavigation: false,
     );
   }
 
-  bool _isCrossedOut(CalendarAppointmentDetails details) {
+  void _onCreateEventAt(DateTime start, DateTime end) {
-    final appointment = details.appointments.first;
+    showDialog(
-    final id = appointment.id;
+      context: context,
-    if (id is WebuntisAppointment) return id.lesson.code == 'cancelled';
+      builder: (_) => CustomEventEditDialog(initialStart: start, initialEnd: end),
-    return false;
+      barrierDismissible: false,
+    );
   }
 }

lib/view/pages/timetable/widgets/appointment_tile.dart

@@ -4,26 +4,27 @@ import 'package:syncfusion_flutter_calendar/calendar.dart';
 import 'cross_painter.dart';
 
 class AppointmentTile extends StatelessWidget {
-  final CalendarAppointmentDetails details;
+  final Appointment appointment;
   final bool crossedOut;
 
-  const AppointmentTile({super.key, required this.details, this.crossedOut = false});
+  const AppointmentTile({super.key, required this.appointment, this.crossedOut = false});
 
   @override
   Widget build(BuildContext context) {
-    final Appointment meeting = details.appointments.first;
+    final isPast = appointment.endTime.isBefore(DateTime.now());
-    final isPast = meeting.endTime.isBefore(DateTime.now());
+    final color = appointment.color.withAlpha(isPast ? 160 : 255);
-    final color = meeting.color.withAlpha(isPast ? 100 : 255);
 
-    return Stack(
+    return Padding(
+      padding: const EdgeInsets.all(1),
+      child: Stack(
         children: [
-        Container(
+          Positioned.fill(
-          padding: const EdgeInsets.all(3),
+            child: Container(
-          height: details.bounds.height,
+              padding: const EdgeInsets.all(4),
               alignment: Alignment.topLeft,
               decoration: BoxDecoration(
                 shape: BoxShape.rectangle,
-            borderRadius: const BorderRadius.all(Radius.circular(5)),
+                borderRadius: const BorderRadius.all(Radius.circular(7)),
                 color: color,
               ),
               child: SingleChildScrollView(
@@ -33,7 +34,7 @@ class AppointmentTile extends StatelessWidget {
                     FittedBox(
                       fit: BoxFit.fitWidth,
                       child: Text(
-                    meeting.subject,
+                        appointment.subject,
                         style: const TextStyle(color: Colors.white, fontSize: 15, fontWeight: FontWeight.w500),
                         maxLines: 1,
                         softWrap: false,
@@ -42,7 +43,7 @@ class AppointmentTile extends StatelessWidget {
                     FittedBox(
                       fit: BoxFit.fitWidth,
                       child: Text(
-                    meeting.location?.isNotEmpty == true ? meeting.location! : ' ',
+                        appointment.location?.isNotEmpty == true ? appointment.location! : ' ',
                         maxLines: 3,
                         overflow: TextOverflow.ellipsis,
                         style: const TextStyle(color: Colors.white, fontSize: 10),
@@ -52,17 +53,19 @@ class AppointmentTile extends StatelessWidget {
                 ),
               ),
             ),
+          ),
           if (crossedOut)
             Positioned.fill(
               child: Container(
                 decoration: BoxDecoration(
                   border: Border.all(width: 2, color: Colors.red.withAlpha(200)),
-                borderRadius: const BorderRadius.all(Radius.circular(5)),
+                  borderRadius: const BorderRadius.all(Radius.circular(7)),
                 ),
                 child: CustomPaint(painter: CrossPainter()),
               ),
             ),
         ],
+      ),
     );
   }
 }

lib/view/pages/timetable/widgets/custom_workweek_calendar.dart

@@ -0,0 +1,761 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:intl/intl.dart';
+import 'package:rrule/rrule.dart';
+import 'package:syncfusion_flutter_calendar/calendar.dart';
+
+import '../data/calendar_layout.dart';
+import '../data/lesson_period_schedule.dart';
+import 'appointment_tile.dart';
+import 'time_region_tile.dart';
+
+class CustomWorkWeekCalendar extends StatefulWidget {
+  final LessonPeriodSchedule schedule;
+  final List<Appointment> appointments;
+  final List<TimeRegion> timeRegions;
+  final DateTime initialDate;
+  final DateTime minDate;
+  final DateTime maxDate;
+  final void Function(Appointment appointment) onAppointmentTap;
+  final void Function(DateTime weekStart, DateTime weekEnd) onWeekChanged;
+  final bool Function(Appointment appointment) isCrossedOut;
+  final void Function(DateTime start, DateTime end)? onCreateEvent;
+
+  const CustomWorkWeekCalendar({
+    super.key,
+    required this.schedule,
+    required this.appointments,
+    required this.timeRegions,
+    required this.initialDate,
+    required this.minDate,
+    required this.maxDate,
+    required this.onAppointmentTap,
+    required this.onWeekChanged,
+    required this.isCrossedOut,
+    this.onCreateEvent,
+  });
+
+  @override
+  State<CustomWorkWeekCalendar> createState() => CustomWorkWeekCalendarState();
+}
+
+class CustomWorkWeekCalendarState extends State<CustomWorkWeekCalendar> {
+  static const double _rulerWidth = 50;
+
+  late PageController _pageController;
+  late int _currentWeekIndex;
+  late DateTime _firstMonday;
+  late int _totalWeeks;
+  late Timer _ticker;
+  late ValueNotifier<DateTime> _nowNotifier;
+  DateTime _today = _dateOnly(DateTime.now());
+
+  @override
+  void initState() {
+    super.initState();
+    _firstMonday = _mondayOf(widget.minDate);
+    final lastMonday = _mondayOf(widget.maxDate);
+    _totalWeeks = lastMonday.difference(_firstMonday).inDays ~/ 7 + 1;
+    _currentWeekIndex = _mondayOf(widget.initialDate).difference(_firstMonday).inDays ~/ 7;
+    _pageController = PageController(initialPage: _currentWeekIndex);
+    _nowNotifier = ValueNotifier<DateTime>(DateTime.now());
+
+    _ticker = Timer.periodic(const Duration(seconds: 30), (_) {
+      if (!mounted) return;
+      final now = DateTime.now();
+      _nowNotifier.value = now;
+      final newToday = _dateOnly(now);
+      if (newToday != _today) setState(() => _today = newToday);
+    });
+  }
+
+  @override
+  void dispose() {
+    _pageController.dispose();
+    _ticker.cancel();
+    _nowNotifier.dispose();
+    super.dispose();
+  }
+
+  static DateTime _dateOnly(DateTime d) => DateTime(d.year, d.month, d.day);
+
+  void jumpToDate(DateTime date) {
+    final target = _mondayOf(date).difference(_firstMonday).inDays ~/ 7;
+    if (target < 0 || target >= _totalWeeks) return;
+    _pageController.animateToPage(
+      target,
+      duration: const Duration(milliseconds: 380),
+      curve: Curves.easeInOutCubic,
+    );
+  }
+
+  static DateTime _mondayOf(DateTime d) {
+    final monday = d.subtract(Duration(days: d.weekday - 1));
+    return DateTime(monday.year, monday.month, monday.day);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final visibleWeekStart = _firstMonday.add(Duration(days: _currentWeekIndex * 7));
+
+    return Column(
+      children: [
+        SizedBox(
+          height: kCalendarViewHeaderHeight,
+          child: AnimatedSwitcher(
+            duration: const Duration(milliseconds: 220),
+            switchInCurve: Curves.easeOut,
+            switchOutCurve: Curves.easeIn,
+            transitionBuilder: (child, animation) => FadeTransition(
+              opacity: animation,
+              child: SlideTransition(
+                position: Tween<Offset>(
+                  begin: const Offset(0, -0.08),
+                  end: Offset.zero,
+                ).animate(animation),
+                child: child,
+              ),
+            ),
+            child: _DayHeaderStrip(
+              key: ValueKey(visibleWeekStart),
+              weekStart: visibleWeekStart,
+              today: _today,
+              rulerWidth: _rulerWidth,
+            ),
+          ),
+        ),
+        Container(height: 0.5, color: theme.dividerColor.withAlpha(110)),
+        Expanded(
+          child: LayoutBuilder(
+            builder: (context, constraints) {
+              final hours = kCalendarEndHour - kCalendarStartHour;
+              final fitPxPerHour = constraints.maxHeight / hours;
+              final pxPerHour =
+                  fitPxPerHour < kCalendarMinPxPerHour ? kCalendarMinPxPerHour : fitPxPerHour;
+              final gridHeight = pxPerHour * hours;
+
+              return SingleChildScrollView(
+                physics: const AlwaysScrollableScrollPhysics(),
+                child: SizedBox(
+                  height: gridHeight,
+                  child: PageView.builder(
+                    controller: _pageController,
+                    itemCount: _totalWeeks,
+                    onPageChanged: (index) {
+                      setState(() => _currentWeekIndex = index);
+                      final weekStart = _firstMonday.add(Duration(days: index * 7));
+                      widget.onWeekChanged(weekStart, weekStart.add(const Duration(days: 4)));
+                    },
+                    itemBuilder: (_, weekIndex) {
+                      final weekStart = _firstMonday.add(Duration(days: weekIndex * 7));
+                      return _WeekGrid(
+                        weekStart: weekStart,
+                        schedule: widget.schedule,
+                        appointments: widget.appointments,
+                        timeRegions: widget.timeRegions,
+                        onAppointmentTap: widget.onAppointmentTap,
+                        isCrossedOut: widget.isCrossedOut,
+                        onCreateEvent: widget.onCreateEvent,
+                        today: _today,
+                        nowNotifier: _nowNotifier,
+                        rulerWidth: _rulerWidth,
+                        pxPerHour: pxPerHour,
+                      );
+                    },
+                  ),
+                ),
+              );
+            },
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class _DayHeaderStrip extends StatelessWidget {
+  final DateTime weekStart;
+  final DateTime today;
+  final double rulerWidth;
+
+  const _DayHeaderStrip({
+    super.key,
+    required this.weekStart,
+    required this.today,
+    required this.rulerWidth,
+  });
+
+  @override
+  Widget build(BuildContext context) => Row(
+        children: [
+          SizedBox(width: rulerWidth),
+          for (var d = 0; d < 5; d++)
+            Expanded(
+              child: _DayHeaderCell(
+                date: weekStart.add(Duration(days: d)),
+                today: today,
+              ),
+            ),
+        ],
+      );
+}
+
+class _DayHeaderCell extends StatelessWidget {
+  final DateTime date;
+  final DateTime today;
+
+  const _DayHeaderCell({required this.date, required this.today});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final isToday = _isSameDay(date, today);
+    final dayName = DateFormat('EE', Localizations.localeOf(context).toString()).format(date).toUpperCase();
+
+    final accent = theme.colorScheme.primary;
+    final onAccent = theme.colorScheme.onPrimary;
+
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 2),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Text(
+            dayName,
+            style: theme.textTheme.labelSmall?.copyWith(
+              color: isToday ? accent : theme.colorScheme.onSurfaceVariant,
+              fontWeight: FontWeight.w600,
+              fontSize: 12,
+              height: 1.1,
+            ),
+          ),
+          const SizedBox(height: 2),
+          AnimatedContainer(
+            duration: const Duration(milliseconds: 220),
+            curve: Curves.easeOutCubic,
+            width: 28,
+            height: 28,
+            decoration: BoxDecoration(
+              shape: BoxShape.circle,
+              color: isToday ? accent : Colors.transparent,
+            ),
+            alignment: Alignment.center,
+            child: Text(
+              '${date.day}',
+              style: theme.textTheme.titleSmall?.copyWith(
+                color: isToday ? onAccent : theme.colorScheme.onSurface,
+                fontWeight: isToday ? FontWeight.bold : FontWeight.normal,
+                height: 1.0,
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _WeekGrid extends StatelessWidget {
+  final DateTime weekStart;
+  final LessonPeriodSchedule schedule;
+  final List<Appointment> appointments;
+  final List<TimeRegion> timeRegions;
+  final void Function(Appointment) onAppointmentTap;
+  final bool Function(Appointment) isCrossedOut;
+  final void Function(DateTime start, DateTime end)? onCreateEvent;
+  final DateTime today;
+  final ValueListenable<DateTime> nowNotifier;
+  final double rulerWidth;
+  final double pxPerHour;
+
+  const _WeekGrid({
+    required this.weekStart,
+    required this.schedule,
+    required this.appointments,
+    required this.timeRegions,
+    required this.onAppointmentTap,
+    required this.isCrossedOut,
+    required this.onCreateEvent,
+    required this.today,
+    required this.nowNotifier,
+    required this.rulerWidth,
+    required this.pxPerHour,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final perDay = _expandAppointmentsForWeek(appointments, weekStart);
+
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        _PeriodRuler(
+          schedule: schedule,
+          pxPerHour: pxPerHour,
+          width: rulerWidth,
+        ),
+        for (var d = 0; d < 5; d++)
+          Expanded(
+            child: _DayColumn(
+              date: weekStart.add(Duration(days: d)),
+              schedule: schedule,
+              appointments: perDay[d],
+              timeRegions: timeRegions,
+              pxPerHour: pxPerHour,
+              today: today,
+              nowNotifier: nowNotifier,
+              onAppointmentTap: onAppointmentTap,
+              isCrossedOut: isCrossedOut,
+              onCreateEvent: onCreateEvent,
+            ),
+          ),
+      ],
+    );
+  }
+}
+
+class _PeriodRuler extends StatelessWidget {
+  final LessonPeriodSchedule schedule;
+  final double pxPerHour;
+  final double width;
+
+  const _PeriodRuler({
+    required this.schedule,
+    required this.pxPerHour,
+    required this.width,
+  });
+
+  double _y(TimeOfDay t) =>
+      (t.hour + t.minute / 60 - kCalendarStartHour) * pxPerHour;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return SizedBox(
+      width: width,
+      child: Stack(
+        clipBehavior: Clip.none,
+        children: [
+          for (final period in schedule.periods)
+            Positioned(
+              top: _y(period.start),
+              height: (_y(period.end) - _y(period.start)).clamp(0, double.infinity),
+              left: 0,
+              right: 0,
+              child: _PeriodLabel(period: period, theme: theme),
+            ),
+        ],
+      ),
+    );
+  }
+}
+
+class _PeriodLabel extends StatelessWidget {
+  final LessonPeriod period;
+  final ThemeData theme;
+
+  const _PeriodLabel({required this.period, required this.theme});
+
+  @override
+  Widget build(BuildContext context) {
+    final dividerColor = theme.dividerColor.withAlpha(110);
+    final secondaryTextColor = theme.colorScheme.onSurfaceVariant;
+
+    if (period.isBreak) {
+      return Container(
+        decoration: BoxDecoration(
+          border: Border(
+            top: BorderSide(color: dividerColor, width: 0.5),
+            bottom: BorderSide(color: dividerColor, width: 0.5),
+          ),
+        ),
+        alignment: Alignment.center,
+        child: Icon(Icons.coffee_outlined, size: 12, color: secondaryTextColor.withAlpha(180)),
+      );
+    }
+
+    final timeStyle = theme.textTheme.labelSmall?.copyWith(
+      color: secondaryTextColor,
+      height: 1.0,
+      fontSize: 10,
+    );
+    const tightTextHeight = TextHeightBehavior(
+      applyHeightToFirstAscent: false,
+      applyHeightToLastDescent: false,
+    );
+
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        final showTimes = constraints.maxHeight >= 38;
+        return Container(
+          decoration: BoxDecoration(
+            border: Border(top: BorderSide(color: dividerColor, width: 0.5)),
+          ),
+          child: Stack(
+            clipBehavior: Clip.none,
+            alignment: Alignment.center,
+            children: [
+              if (showTimes)
+                Positioned(
+                  top: 3,
+                  left: 0,
+                  right: 0,
+                  child: Text(
+                    _format(period.start),
+                    style: timeStyle,
+                    textAlign: TextAlign.center,
+                    textHeightBehavior: tightTextHeight,
+                  ),
+                ),
+              Text(
+                '${period.name}.',
+                style: theme.textTheme.labelLarge?.copyWith(
+                  color: theme.colorScheme.onSurface,
+                  fontWeight: FontWeight.w500,
+                  height: 1.0,
+                ),
+                textAlign: TextAlign.center,
+                textHeightBehavior: tightTextHeight,
+              ),
+              if (showTimes)
+                Positioned(
+                  bottom: 3,
+                  left: 0,
+                  right: 0,
+                  child: Text(
+                    _format(period.end),
+                    style: timeStyle,
+                    textAlign: TextAlign.center,
+                    textHeightBehavior: tightTextHeight,
+                  ),
+                ),
+            ],
+          ),
+        );
+      },
+    );
+  }
+
+  static String _format(TimeOfDay t) =>
+      '${t.hour.toString().padLeft(2, '0')}:${t.minute.toString().padLeft(2, '0')}';
+}
+
+class _DayColumn extends StatelessWidget {
+  final DateTime date;
+  final LessonPeriodSchedule schedule;
+  final List<Appointment> appointments;
+  final List<TimeRegion> timeRegions;
+  final double pxPerHour;
+  final DateTime today;
+  final ValueListenable<DateTime> nowNotifier;
+  final void Function(Appointment) onAppointmentTap;
+  final bool Function(Appointment) isCrossedOut;
+  final void Function(DateTime start, DateTime end)? onCreateEvent;
+
+  const _DayColumn({
+    required this.date,
+    required this.schedule,
+    required this.appointments,
+    required this.timeRegions,
+    required this.pxPerHour,
+    required this.today,
+    required this.nowNotifier,
+    required this.onAppointmentTap,
+    required this.isCrossedOut,
+    required this.onCreateEvent,
+  });
+
+  double _y(int hour, int minute) =>
+      (hour + minute / 60 - kCalendarStartHour) * pxPerHour;
+
+  double _yFromDate(DateTime t) => _y(t.hour, t.minute);
+
+  /// Snaps an appointment edge to the nearest period boundary if the gap is small,
+  /// so small inter-period transitions (Wechselzeiten) appear as part of the lesson visually.
+  double _yForAppointmentEdge(DateTime t, {required bool isStart}) {
+    final tMin = t.hour * 60 + t.minute;
+    for (final period in schedule.periods) {
+      if (period.isBreak) continue;
+      final pStart = period.start.hour * 60 + period.start.minute;
+      final pEnd = period.end.hour * 60 + period.end.minute;
+      if (isStart) {
+        final delta = tMin - pStart;
+        if (delta >= 0 && delta < 5) {
+          return _y(period.start.hour, period.start.minute);
+        }
+      } else {
+        final delta = pEnd - tMin;
+        if (delta >= 0 && delta < 5) {
+          // Snap to the next non-break period's start when the gap is short
+          // (Wechselzeit). Skips into a break never extends the lesson.
+          final idx = schedule.periods.indexOf(period);
+          if (idx + 1 < schedule.periods.length) {
+            final next = schedule.periods[idx + 1];
+            if (!next.isBreak) {
+              final nextStart = next.start.hour * 60 + next.start.minute;
+              if (nextStart - pEnd < 10) {
+                return _y(next.start.hour, next.start.minute);
+              }
+            }
+          }
+        }
+      }
+    }
+    return _yFromDate(t);
+  }
+
+  /// Returns the lesson period (non-break) that the given y-offset falls into,
+  /// or the next upcoming non-break period if y falls inside a break or before
+  /// the first period. Returns null if y is past the last period of the day.
+  LessonPeriod? _periodAt(double y) {
+    final hoursDecimal = y / pxPerHour + kCalendarStartHour;
+    final tappedMinutes = (hoursDecimal * 60).round();
+
+    LessonPeriod? upcoming;
+    for (final p in schedule.periods) {
+      if (p.isBreak) continue;
+      final pStart = p.start.hour * 60 + p.start.minute;
+      final pEnd = p.end.hour * 60 + p.end.minute;
+      if (tappedMinutes >= pStart && tappedMinutes < pEnd) return p;
+      if (tappedMinutes < pStart) {
+        upcoming = p;
+        break;
+      }
+    }
+    return upcoming;
+  }
+
+  bool _overlapsExistingAppointment(DateTime start, DateTime end, List<Appointment> dayAppts) {
+    for (final a in dayAppts) {
+      if (a.endTime.isAfter(start) && a.startTime.isBefore(end)) return true;
+    }
+    return false;
+  }
+
+  void _handleLongPress(LongPressStartDetails details, List<Appointment> dayAppts) {
+    if (onCreateEvent == null) return;
+    final period = _periodAt(details.localPosition.dy);
+    if (period == null) return;
+
+    final start = DateTime(date.year, date.month, date.day, period.start.hour, period.start.minute);
+    final end = DateTime(date.year, date.month, date.day, period.end.hour, period.end.minute);
+    if (_overlapsExistingAppointment(start, end, dayAppts)) return;
+
+    HapticFeedback.mediumImpact();
+    onCreateEvent!(start, end);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    final dayAppointments = appointments;
+    final dayRegions = _expandRegionsForDay(timeRegions, date);
+    final isToday = _isSameDay(date, today);
+
+    return GestureDetector(
+      behavior: HitTestBehavior.translucent,
+      onLongPressStart: (details) => _handleLongPress(details, dayAppointments),
+      child: Container(
+      decoration: BoxDecoration(
+        color: isToday ? theme.colorScheme.primary.withAlpha(14) : null,
+        border: Border(left: BorderSide(color: theme.dividerColor.withAlpha(90), width: 0.5)),
+      ),
+      child: Stack(
+        clipBehavior: Clip.none,
+        children: [
+          for (final period in schedule.periods)
+            Positioned(
+              top: _y(period.start.hour, period.start.minute),
+              left: 0,
+              right: 0,
+              child: Container(
+                height: 0.5,
+                color: theme.dividerColor.withAlpha(60),
+              ),
+            ),
+          for (final region in dayRegions)
+            Positioned(
+              top: _yFromDate(region.start),
+              height:
+                  (_yFromDate(region.end) - _yFromDate(region.start)).clamp(0, double.infinity),
+              left: 0,
+              right: 0,
+              child: TimeRegionTile(region: region.region),
+            ),
+          for (final apt in dayAppointments)
+            Positioned(
+              top: _yForAppointmentEdge(apt.startTime, isStart: true),
+              height: (_yForAppointmentEdge(apt.endTime, isStart: false) -
+                      _yForAppointmentEdge(apt.startTime, isStart: true))
+                  .clamp(0, double.infinity),
+              left: 1,
+              right: 1,
+              child: GestureDetector(
+                behavior: HitTestBehavior.opaque,
+                onTap: () => onAppointmentTap(apt),
+                child: AppointmentTile(
+                  appointment: apt,
+                  crossedOut: isCrossedOut(apt),
+                ),
+              ),
+            ),
+          if (isToday)
+            ValueListenableBuilder<DateTime>(
+              valueListenable: nowNotifier,
+              builder: (_, now, child) =>
+                  _CurrentTimeMarker(now: now, pxPerHour: pxPerHour, theme: theme),
+            ),
+        ],
+      ),
+    ),
+    );
+  }
+}
+
+class _CurrentTimeMarker extends StatelessWidget {
+  final DateTime now;
+  final double pxPerHour;
+  final ThemeData theme;
+
+  const _CurrentTimeMarker({
+    required this.now,
+    required this.pxPerHour,
+    required this.theme,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final y = (now.hour + now.minute / 60 + now.second / 3600 - kCalendarStartHour) * pxPerHour;
+    final maxY = (kCalendarEndHour - kCalendarStartHour) * pxPerHour;
+    if (y < 0 || y > maxY) return const SizedBox.shrink();
+
+    return AnimatedPositioned(
+      duration: const Duration(milliseconds: 400),
+      curve: Curves.easeInOut,
+      top: y - 1,
+      left: 0,
+      right: 0,
+      child: IgnorePointer(
+        child: Stack(
+          clipBehavior: Clip.none,
+          children: [
+            Container(
+              height: 2,
+              color: theme.colorScheme.primary,
+            ),
+            Positioned(
+              top: -3,
+              left: -4,
+              child: Container(
+                width: 8,
+                height: 8,
+                decoration: BoxDecoration(
+                  color: theme.colorScheme.primary,
+                  shape: BoxShape.circle,
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _BoundRegion {
+  final TimeRegion region;
+  final DateTime start;
+  final DateTime end;
+
+  _BoundRegion({required this.region, required this.start, required this.end});
+}
+
+List<_BoundRegion> _expandRegionsForDay(List<TimeRegion> regions, DateTime day) {
+  final result = <_BoundRegion>[];
+  final dayStart = DateTime(day.year, day.month, day.day);
+  for (final region in regions) {
+    final isRecurringDaily = region.recurrenceRule != null &&
+        region.recurrenceRule!.toUpperCase().contains('FREQ=DAILY');
+    if (isRecurringDaily) {
+      final start = dayStart.add(Duration(
+        hours: region.startTime.hour,
+        minutes: region.startTime.minute,
+      ));
+      final end = dayStart.add(Duration(
+        hours: region.endTime.hour,
+        minutes: region.endTime.minute,
+      ));
+      result.add(_BoundRegion(region: region, start: start, end: end));
+    } else if (_isSameDay(region.startTime, day)) {
+      result.add(_BoundRegion(
+        region: region,
+        start: region.startTime,
+        end: region.endTime,
+      ));
+    }
+  }
+  return result;
+}
+
+bool _isSameDay(DateTime a, DateTime b) =>
+    a.year == b.year && a.month == b.month && a.day == b.day;
+
+/// Expands the given list of appointments across the visible 5-day work week,
+/// resolving any RRULE-based recurrences into per-day synthetic instances.
+/// Returns a list of length 5 (Monday..Friday); each entry holds the
+/// appointments occurring on that day, with `startTime` and `endTime` shifted
+/// to the actual occurrence date (preserving time-of-day and duration). The
+/// original `id`, `subject`, `color`, `location` and `notes` are kept so taps
+/// still resolve to the correct underlying event.
+List<List<Appointment>> _expandAppointmentsForWeek(
+    List<Appointment> appointments, DateTime weekStart) {
+  final perDay = List<List<Appointment>>.generate(5, (_) => <Appointment>[]);
+  final weekEnd = weekStart.add(const Duration(days: 5));
+  final weekStartUtc = weekStart.toUtc();
+  final weekEndUtc = weekEnd.toUtc();
+
+  for (final a in appointments) {
+    final rule = a.recurrenceRule;
+    if (rule == null || rule.isEmpty) {
+      final idx = a.startTime.difference(weekStart).inDays;
+      if (idx >= 0 && idx < 5) perDay[idx].add(a);
+      continue;
+    }
+    try {
+      final parsed = RecurrenceRule.fromString(rule);
+      final anchorUtc = a.startTime.toUtc();
+      final duration = a.endTime.difference(a.startTime);
+      for (final occUtc in parsed.getInstances(start: anchorUtc)) {
+        if (!occUtc.isBefore(weekEndUtc)) break;
+        if (occUtc.isBefore(weekStartUtc)) continue;
+        final occLocal = occUtc.toLocal();
+        final idx = DateTime(occLocal.year, occLocal.month, occLocal.day)
+            .difference(weekStart)
+            .inDays;
+        if (idx < 0 || idx >= 5) continue;
+        final newStart = DateTime(occLocal.year, occLocal.month, occLocal.day,
+            a.startTime.hour, a.startTime.minute);
+        perDay[idx].add(Appointment(
+          id: a.id,
+          startTime: newStart,
+          endTime: newStart.add(duration),
+          subject: a.subject,
+          color: a.color,
+          location: a.location,
+          notes: a.notes,
+        ));
+      }
+    } catch (_) {
+      // Malformed RRULE → behave as non-recurring (anchor day only).
+      final idx = a.startTime.difference(weekStart).inDays;
+      if (idx >= 0 && idx < 5) perDay[idx].add(a);
+    }
+  }
+  return perDay;
+}

lib/view/pages/timetable/widgets/lesson_appointment_source.dart

@@ -1,7 +0,0 @@
-import 'package:syncfusion_flutter_calendar/calendar.dart';
-
-class LessonAppointmentSource extends CalendarDataSource {
-  LessonAppointmentSource(List<Appointment> source) {
-    appointments = source;
-  }
-}

lib/view/pages/timetable/widgets/special_regions_builder.dart

@@ -3,32 +3,38 @@ import 'package:syncfusion_flutter_calendar/calendar.dart';
 
 import '../../../../api/webuntis/queries/getHolidays/getHolidaysResponse.dart';
 import '../../../../extensions/dateTime.dart';
+import '../data/calendar_layout.dart';
+import '../data/lesson_period_schedule.dart';
 import '../data/webuntis_time.dart';
 import 'time_region_tile.dart';
 
 class SpecialRegionsBuilder {
   final GetHolidaysResponse holidays;
+  final LessonPeriodSchedule schedule;
   final ColorScheme colorScheme;
   final Color disabledColor;
 
   SpecialRegionsBuilder({
     required this.holidays,
+    required this.schedule,
     required this.colorScheme,
     required this.disabledColor,
   });
 
   List<TimeRegion> build() {
     final lastMonday = DateTime.now().subtract(const Duration(days: 14)).nextWeekday(DateTime.monday);
-    final firstBreak = lastMonday.copyWith(hour: 10, minute: 15);
-    final secondBreak = lastMonday.copyWith(hour: 13, minute: 50);
 
     final holidayRegions = _buildHolidayRegions().toList();
     bool isInHoliday(DateTime time) => holidayRegions.any((region) => region.startTime.isSameDay(time));
 
+    final breakRegions = schedule.periods.where((p) => p.isBreak).map((p) {
+      final start = lastMonday.copyWith(hour: p.start.hour, minute: p.start.minute);
+      return _breakRegion(start, p.duration);
+    }).where((region) => !isInHoliday(region.startTime));
+
     return [
       ...holidayRegions,
-      if (!isInHoliday(firstBreak)) _breakRegion(firstBreak, const Duration(minutes: 20)),
+      ...breakRegions,
-      if (!isInHoliday(secondBreak)) _breakRegion(secondBreak, const Duration(minutes: 15)),
     ];
   }
 
@@ -36,9 +42,13 @@ class SpecialRegionsBuilder {
         final startDay = WebuntisTime.parse(holiday.startDate, 0);
         final dayCount = WebuntisTime.parse(holiday.endDate, 0).difference(startDay).inDays;
         final days = List<DateTime>.generate(dayCount, (i) => startDay.add(Duration(days: i)));
+        final gridStartHour = kCalendarStartHour.floor();
+        final gridStartMinute = ((kCalendarStartHour - gridStartHour) * 60).round();
+        final gridEndHour = kCalendarEndHour.floor();
+        final gridEndMinute = ((kCalendarEndHour - gridEndHour) * 60).round();
         return days.map((day) => TimeRegion(
-              startTime: day.copyWith(hour: 7, minute: 55),
+              startTime: day.copyWith(hour: gridStartHour, minute: gridStartMinute),
-              endTime: day.copyWith(hour: 16, minute: 30),
+              endTime: day.copyWith(hour: gridEndHour, minute: gridEndMinute),
               text: '$kTimeRegionHolidayPrefix${holiday.name}',
               color: disabledColor.withAlpha(50),
               iconData: Icons.holiday_village_outlined,

lib/view/pages/timetable/widgets/time_region_tile.dart

@@ -5,20 +5,20 @@ const String kTimeRegionCenterIcon = 'centerIcon';
 const String kTimeRegionHolidayPrefix = 'holiday:';
 
 class TimeRegionTile extends StatelessWidget {
-  final TimeRegionDetails details;
+  final TimeRegion region;
 
-  const TimeRegionTile({super.key, required this.details});
+  const TimeRegionTile({super.key, required this.region});
 
   @override
   Widget build(BuildContext context) {
-    final text = details.region.text ?? '';
+    final text = region.text ?? '';
-    final color = details.region.color;
+    final color = region.color;
 
     if (text == kTimeRegionCenterIcon) {
       return Container(
         color: color,
         alignment: Alignment.center,
-        child: Icon(details.region.iconData, size: 17, color: Theme.of(context).primaryColor),
+        child: Icon(region.iconData, size: 17, color: Theme.of(context).colorScheme.primary),
       );
     }
 
@@ -50,6 +50,6 @@ class TimeRegionTile extends StatelessWidget {
       );
     }
 
-    return const Placeholder();
+    return const SizedBox.shrink();
   }
 }

lib/widget/userAvatar.dart

@@ -1,45 +1,139 @@
-import 'package:cached_network_image/cached_network_image.dart';
+import 'dart:convert';
+import 'dart:typed_data';
+
 import 'package:flutter/material.dart';
+import 'package:flutter_svg/flutter_svg.dart';
+import 'package:http/http.dart' as http;
 
 import '../model/accountData.dart';
 import '../model/endpointData.dart';
 
-class UserAvatar extends StatelessWidget {
+class UserAvatar extends StatefulWidget {
   final String id;
   final bool isGroup;
   final int size;
   const UserAvatar({required this.id, this.isGroup = false, this.size = 20, super.key});
 
+  @override
+  State<UserAvatar> createState() => _UserAvatarState();
+}
+
+class _AvatarPayload {
+  final Uint8List bytes;
+  final bool isSvg;
+  _AvatarPayload(this.bytes, this.isSvg);
+}
+
+final Map<String, Future<_AvatarPayload?>> _avatarCache = {};
+
+class _UserAvatarState extends State<UserAvatar> {
+  late Future<_AvatarPayload?> _payload;
+
+  @override
+  void initState() {
+    super.initState();
+    _payload = _load();
+  }
+
+  @override
+  void didUpdateWidget(UserAvatar oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.id != widget.id ||
+        oldWidget.isGroup != widget.isGroup ||
+        oldWidget.size != widget.size) {
+      _payload = _load();
+    }
+  }
+
+  String _url() {
+    final host = EndpointData().nextcloud().full();
+    if (widget.isGroup) {
+      return 'https://$host/ocs/v2.php/apps/spreed/api/v1/room/${widget.id}/avatar';
+    }
+    return 'https://$host/avatar/${widget.id}/${widget.size}';
+  }
+
+  Future<_AvatarPayload?> _load() {
+    final url = _url();
+    return _avatarCache.putIfAbsent(url, () => _fetch(url));
+  }
+
+  Future<_AvatarPayload?> _fetch(String url) async {
+    try {
+      final auth = base64Encode(utf8.encode(AccountData().buildHttpAuthString()));
+      final response = await http.get(
+        Uri.parse(url),
+        headers: {
+          'Authorization': 'Basic $auth',
+          'Accept': 'image/png,image/jpeg,image/webp,image/svg+xml',
+        },
+      );
+      if (response.statusCode != 200 || response.bodyBytes.isEmpty) return null;
+
+      final contentType = response.headers['content-type']?.toLowerCase() ?? '';
+      final bytes = response.bodyBytes;
+      final isSvg = contentType.contains('svg') || _looksLikeSvg(bytes);
+      return _AvatarPayload(bytes, isSvg);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  static bool _looksLikeSvg(Uint8List bytes) {
+    final head = utf8.decode(
+      bytes.sublist(0, bytes.length < 256 ? bytes.length : 256),
+      allowMalformed: true,
+    ).trimLeft();
+    return head.startsWith('<?xml') || head.startsWith('<svg');
+  }
+
   @override
   Widget build(BuildContext context) {
-    if(isGroup) {
+    final radius = widget.size.toDouble();
-      return CircleAvatar(
+    final theme = Theme.of(context);
-        foregroundImage: Image(
+
-            image: CachedNetworkImageProvider(
+    return FutureBuilder<_AvatarPayload?>(
-                'https://${AccountData().buildHttpAuthString()}@${EndpointData().nextcloud().full()}/ocs/v2.php/apps/spreed/api/v1/room/$id/avatar',
+      future: _payload,
-                errorListener: (p0) {}
+      builder: (context, snapshot) {
-            )
+        final payload = snapshot.data;
-        ).image,
+
-        backgroundColor: Theme.of(context).primaryColor,
+        Widget content;
-        foregroundColor: Colors.white,
+        if (payload == null) {
-        onForegroundImageError: (o, t) {},
+          content = Icon(
-        radius: size.toDouble(),
+            widget.isGroup ? Icons.group : Icons.person,
-        child: Icon(Icons.group, size: size.toDouble()),
+            size: radius,
+            color: Colors.white,
+          );
+        } else if (payload.isSvg) {
+          content = SvgPicture.memory(
+            payload.bytes,
+            width: radius * 2,
+            height: radius * 2,
+            fit: BoxFit.cover,
           );
         } else {
+          content = Image.memory(
+            payload.bytes,
+            width: radius * 2,
+            height: radius * 2,
+            fit: BoxFit.cover,
+            gaplessPlayback: true,
+          );
+        }
+
         return CircleAvatar(
-        foregroundImage: Image(
+          radius: radius,
-            image: CachedNetworkImageProvider(
+          backgroundColor: theme.primaryColor,
-                'https://${EndpointData().nextcloud().full()}/avatar/$id/$size',
-                errorListener: (p0) {}
-            ),
-        ).image,
-        backgroundColor: Theme.of(context).primaryColor,
           foregroundColor: Colors.white,
-        onForegroundImageError: (o, t) {},
+          child: ClipOval(
-        radius: size.toDouble(),
+            child: SizedBox(
-        child: Icon(Icons.person, size: size.toDouble()),
+              width: radius * 2,
+              height: radius * 2,
+              child: content,
+            ),
+          ),
+        );
+      },
     );
   }
 }
-}

pubspec.yaml

@@ -50,6 +50,7 @@ dependencies:
   flutter_login: ^6.0.0
   flutter_native_splash: ^2.4.4
   flutter_split_view: ^0.1.2
+  flutter_svg: ^2.0.10
   freezed_annotation: ^3.1.0
   http: ^1.3.0
   hydrated_bloc: ^11.0.0