migrated timetable integration from WebUntis to the MarianumConnect API, implementing a Dio-based client with bearer token authentication, background session validation, and auto-refresh logic.

android/app/src/debug/AndroidManifest.xml

@@ -4,4 +4,10 @@
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- Allow cleartext HTTP in debug builds so developers can point the
+         Marianum-Connect custom endpoint at a local backend (e.g.
+         http://10.0.2.2:8080 from the Android emulator). Release builds
+         keep the default cleartext block. -->
+    <application android:usesCleartextTraffic="true" />
 </manifest>

lib/api/errors/error_mapper.dart

@@ -6,13 +6,11 @@ import 'package:http/http.dart' as http;
 
 import '../api_error.dart';
 import '../marianumcloud/talk/talk_error.dart';
-import '../webuntis/webuntis_error.dart';
 import 'app_exception.dart';
 import 'network_exception.dart';
 import 'parse_exception.dart';
 import 'server_exception.dart';
 import 'talk_exception.dart';
-import 'webuntis_exception.dart';
 
 const String _defaultFallback =
     'Etwas ist schiefgelaufen. Bitte versuche es erneut.';
@@ -57,7 +55,6 @@ String errorToUserMessage(Object? error, {String fallback = _defaultFallback}) {
   if (error is AppException) return error.userMessage;
 
   if (error is TalkError) return TalkException(error).userMessage;
-  if (error is WebuntisError) return WebuntisException(error).userMessage;
 
   if (error is DioException) {
     final mapped = _dioToAppException(error);
@@ -90,7 +87,6 @@ String? errorToTechnicalDetails(Object? error) {
   if (error == null) return null;
   if (error is AppException) return error.technicalDetails ?? error.toString();
   if (error is TalkError) return TalkException(error).technicalDetails;
-  if (error is WebuntisError) return WebuntisException(error).technicalDetails;
   if (error is DioException) {
     final mapped = _dioToAppException(error);
     if (mapped != null) return mapped.technicalDetails ?? mapped.toString();

lib/api/errors/webuntis_exception.dart

@@ -1,31 +0,0 @@
-import '../webuntis/webuntis_error.dart';
-import 'app_exception.dart';
-
-class WebuntisException extends AppException {
-  final WebuntisError source;
-
-  WebuntisException(this.source)
-    : super(
-        userMessage: _mapMessage(source),
-        technicalDetails: 'WebUntis (${source.code}): ${source.message}',
-        allowRetry: true,
-      );
-
-  static String _mapMessage(WebuntisError e) {
-    switch (e.code) {
-      case -8504:
-      case -8502:
-        return 'WebUntis-Anmeldung abgelaufen. Bitte erneut anmelden.';
-      case -8520:
-        return 'Bitte melde dich erneut an.';
-      case -7004:
-        return 'Für diesen Zeitraum sind keine Stundenplandaten verfügbar.';
-      case -32601:
-        return 'WebUntis kennt diese Anfrage nicht. Bitte App aktualisieren.';
-      default:
-        return e.message.isNotEmpty
-            ? 'WebUntis: ${e.message}'
-            : 'WebUntis konnte die Anfrage nicht bearbeiten (Code ${e.code}).';
-    }
-  }
-}

lib/api/marianumconnect/auth/auth_interceptor.dart

@@ -0,0 +1,110 @@
+import 'package:dio/dio.dart';
+
+import '../../../model/account_data.dart';
+import '../queries/auth_login/auth_login.dart';
+import 'device_token_name.dart';
+import 'token_storage.dart';
+
+/// Adds the bearer token to outgoing Marianum-Connect requests and, on 401,
+/// re-logs in once with the credentials in [AccountData] before retrying.
+class MarianumConnectAuthInterceptor extends Interceptor {
+  static const _retriedKey = 'mc_auth_retried';
+
+  final MarianumConnectTokenStorage _tokenStorage;
+  final Dio _retryDio;
+  final AuthLogin _loginClient;
+
+  // Single-flight lock: parallel 401s share the same login Future instead of
+  // each spawning a fresh row in api_tokens.
+  Future<bool>? _pendingReLogin;
+
+  MarianumConnectAuthInterceptor({
+    MarianumConnectTokenStorage tokenStorage =
+        const MarianumConnectTokenStorage(),
+    Dio? retryDio,
+    AuthLogin? loginClient,
+  }) : _tokenStorage = tokenStorage,
+       _retryDio = retryDio ?? Dio(),
+       _loginClient = loginClient ?? AuthLogin();
+
+  @override
+  Future<void> onRequest(
+    RequestOptions options,
+    RequestInterceptorHandler handler,
+  ) async {
+    // Wait for an in-flight re-login so nachrückende Requests den frischen
+    // Token mitschicken statt ein eigenes 401 einzufangen.
+    final pending = _pendingReLogin;
+    if (pending != null) await pending;
+    final token = await _tokenStorage.readToken();
+    if (token != null && token.isNotEmpty) {
+      options.headers['Authorization'] = 'Bearer $token';
+    }
+    handler.next(options);
+  }
+
+  @override
+  Future<void> onError(
+    DioException err,
+    ErrorInterceptorHandler handler,
+  ) async {
+    final response = err.response;
+    if (response?.statusCode != 401 ||
+        err.requestOptions.extra[_retriedKey] == true) {
+      handler.next(err);
+      return;
+    }
+    final refreshed = await _attemptReLogin();
+    if (!refreshed) {
+      handler.next(err);
+      return;
+    }
+    try {
+      final retried = await _retryWithFreshToken(err.requestOptions);
+      handler.resolve(retried);
+    } on DioException catch (retryError) {
+      handler.next(retryError);
+    }
+  }
+
+  Future<bool> _attemptReLogin() {
+    final inFlight = _pendingReLogin;
+    if (inFlight != null) return inFlight;
+    final fresh = _performReLogin();
+    _pendingReLogin = fresh;
+    fresh.whenComplete(() {
+      if (identical(_pendingReLogin, fresh)) _pendingReLogin = null;
+    });
+    return fresh;
+  }
+
+  Future<bool> _performReLogin() async {
+    if (!AccountData().isPopulated()) return false;
+    try {
+      await _loginClient.run(
+        username: AccountData().getUsername(),
+        password: AccountData().getPassword(),
+        tokenName: await DeviceTokenName.resolve(),
+      );
+      return true;
+    } catch (_) {
+      await _tokenStorage.clear();
+      return false;
+    }
+  }
+
+  Future<Response<dynamic>> _retryWithFreshToken(
+    RequestOptions originalOptions,
+  ) async {
+    final freshToken = await _tokenStorage.readToken();
+    final headers = Map<String, dynamic>.of(originalOptions.headers);
+    if (freshToken != null && freshToken.isNotEmpty) {
+      headers['Authorization'] = 'Bearer $freshToken';
+    }
+    final clone = originalOptions.copyWith(
+      headers: headers,
+      extra: {...originalOptions.extra, _retriedKey: true},
+    );
+    return _retryDio.fetch<dynamic>(clone);
+  }
+}

lib/api/marianumconnect/auth/device_token_name.dart

@@ -0,0 +1,41 @@
+import 'dart:io';
+
+import 'package:device_info_plus/device_info_plus.dart';
+
+/// Bearer-token display name shown in the dashboard token list, in the form
+/// `"Marianum Fulda App (Pixel 10)"`. Cached because device-info never
+/// changes at runtime.
+class DeviceTokenName {
+  static const String _appName = 'Marianum Fulda App';
+
+  static String? _cached;
+
+  static Future<String> resolve() async {
+    if (_cached != null) return _cached!;
+    final device = await _deviceLabel();
+    _cached = device.isEmpty ? _appName : '$_appName ($device)';
+    return _cached!;
+  }
+
+  static Future<String> _deviceLabel() async {
+    try {
+      final info = DeviceInfoPlugin();
+      if (Platform.isAndroid) {
+        final android = await info.androidInfo;
+        final model = android.model.trim();
+        return model.isNotEmpty ? model : android.device.trim();
+      }
+      if (Platform.isIOS) {
+        final ios = await info.iosInfo;
+        // utsname.machine bleibt auch ohne user-zugewiesenen Gerätenamen
+        // verfügbar; ios.name liefert auf iOS 16+ nur noch Generika.
+        final machine = ios.utsname.machine.trim();
+        if (machine.isNotEmpty) return machine;
+        return ios.name.trim();
+      }
+    } catch (_) {
+      // Device-Plugin nicht verfügbar (z.B. Tests).
+    }
+    return '';
+  }
+}

lib/api/marianumconnect/auth/session_validator.dart

@@ -0,0 +1,32 @@
+import 'dart:developer';
+
+import '../../../model/account_data.dart';
+import '../../errors/auth_exception.dart';
+import '../queries/auth_logout/auth_logout.dart';
+import '../queries/auth_verify/auth_verify.dart';
+import 'token_storage.dart';
+
+/// Background credential probe — a server-side password rotation forces a
+/// re-login on the next cold start even when the bearer token would still
+/// be accepted.
+class SessionValidator {
+  static Future<void> probeStored({
+    required Future<void> Function() onInvalidated,
+  }) async {
+    if (!AccountData().isPopulated()) return;
+    final username = AccountData().getUsername();
+    final password = AccountData().getPassword();
+    try {
+      await AuthVerify().run(username: username, password: password);
+    } on AuthException catch (e) {
+      if (e.statusCode != 401) return;
+      log('MC: stored credentials rejected — forcing re-login');
+      await AuthLogout().run();
+      await const MarianumConnectTokenStorage().clear();
+      await AccountData().removeData();
+      await onInvalidated();
+    } catch (e) {
+      log('MC: background credential check failed (transient): $e');
+    }
+  }
+}

lib/api/marianumconnect/auth/token_storage.dart

@@ -0,0 +1,45 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+/// Persists the Marianum-Connect bearer token in the platform keystore. Kept
+/// separate from `AccountData` because the username/password live on (Nextcloud
+/// + MHSL still need them) while the MC token is short-lived and per-endpoint.
+class MarianumConnectTokenStorage {
+  static const _tokenKey = 'mc_bearer_token';
+  static const _tokenIdKey = 'mc_token_id';
+  static const _expiresAtKey = 'mc_token_expires_at';
+
+  final FlutterSecureStorage _storage;
+
+  const MarianumConnectTokenStorage([
+    this._storage = const FlutterSecureStorage(),
+  ]);
+
+  Future<String?> readToken() => _storage.read(key: _tokenKey);
+
+  Future<String?> readTokenId() => _storage.read(key: _tokenIdKey);
+
+  Future<DateTime?> readExpiresAt() async {
+    final raw = await _storage.read(key: _expiresAtKey);
+    if (raw == null || raw.isEmpty) return null;
+    return DateTime.tryParse(raw);
+  }
+
+  Future<void> write({
+    required String token,
+    required String tokenId,
+    required DateTime? expiresAt,
+  }) async {
+    await _storage.write(key: _tokenKey, value: token);
+    await _storage.write(key: _tokenIdKey, value: tokenId);
+    await _storage.write(
+      key: _expiresAtKey,
+      value: expiresAt?.toIso8601String() ?? '',
+    );
+  }
+
+  Future<void> clear() async {
+    await _storage.delete(key: _tokenKey);
+    await _storage.delete(key: _tokenIdKey);
+    await _storage.delete(key: _expiresAtKey);
+  }
+}

lib/api/marianumconnect/errors/marianumconnect_error.dart

@@ -0,0 +1,49 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/app_exception.dart';
+import '../../errors/auth_exception.dart';
+import '../../errors/network_exception.dart';
+import '../../errors/parse_exception.dart';
+import '../../errors/server_exception.dart';
+
+/// Converts a DioException raised against the Marianum-Connect API into one of
+/// the app's typed AppExceptions. Keeps the dio dependency out of call sites
+/// that just want to render an error message.
+AppException mapMarianumConnectError(DioException error) {
+  switch (error.type) {
+    case DioExceptionType.connectionTimeout:
+    case DioExceptionType.sendTimeout:
+    case DioExceptionType.receiveTimeout:
+      return NetworkException.timeout(technicalDetails: error.message);
+    case DioExceptionType.connectionError:
+      return NetworkException(technicalDetails: error.message);
+    case DioExceptionType.badCertificate:
+      return const NetworkException(
+        userMessage:
+            'Die sichere Verbindung zum Marianum-Connect-Server wurde abgelehnt.',
+      );
+    case DioExceptionType.badResponse:
+      final status = error.response?.statusCode ?? -1;
+      if (status == 401) {
+        return AuthException.unauthorized(
+          technicalDetails: 'MC 401: ${error.response?.data}',
+        );
+      }
+      if (status == 403) {
+        return AuthException.forbidden(
+          technicalDetails: 'MC 403: ${error.response?.data}',
+        );
+      }
+      return ServerException(
+        statusCode: status,
+        technicalDetails: 'MC HTTP $status: ${error.response?.data}',
+      );
+    case DioExceptionType.cancel:
+    case DioExceptionType.unknown:
+      final inner = error.error;
+      if (inner is FormatException) {
+        return ParseException(technicalDetails: inner.message);
+      }
+      return NetworkException(technicalDetails: error.message);
+  }
+}

lib/api/marianumconnect/marianumconnect_api.dart

@@ -0,0 +1,30 @@
+import 'package:dio/dio.dart';
+
+import 'auth/auth_interceptor.dart';
+
+/// Singleton dio instance for the Marianum-Connect mobile API. Wired with the
+/// bearer auth interceptor at startup; the base URL is resolved per request
+/// through [MarianumConnectEndpoint] so settings changes take effect without
+/// recreating the client.
+class MarianumConnectApi {
+  static const Duration _connectTimeout = Duration(seconds: 10);
+  static const Duration _receiveTimeout = Duration(seconds: 20);
+
+  static final Dio _instance = _build();
+
+  static Dio dio() => _instance;
+
+  static Dio _build() {
+    final dio = Dio(
+      BaseOptions(
+        connectTimeout: _connectTimeout,
+        sendTimeout: _connectTimeout,
+        receiveTimeout: _receiveTimeout,
+        responseType: ResponseType.json,
+        contentType: 'application/json',
+      ),
+    );
+    dio.interceptors.add(MarianumConnectAuthInterceptor());
+    return dio;
+  }
+}

lib/api/marianumconnect/marianumconnect_endpoint.dart

@@ -0,0 +1,22 @@
+import '../../storage/dev_tools_settings.dart';
+
+/// Singleton holding the currently active Marianum-Connect base URL. Fed by a
+/// SettingsCubit listener in app.dart so every dio call picks up endpoint
+/// changes without holding a reference to the cubit.
+class MarianumConnectEndpoint {
+  static String _baseUrl = DevToolsSettings.liveUrl;
+
+  static String current() => _baseUrl;
+
+  static void update(String baseUrl) {
+    _baseUrl = baseUrl;
+  }
+
+  /// Joins the base URL with the mobile API prefix and the given path.
+  static String resolve(String relativePath) {
+    final path = relativePath.startsWith('/')
+        ? relativePath.substring(1)
+        : relativePath;
+    return '$_baseUrl/api/mobile/v1/$path';
+  }
+}

lib/api/marianumconnect/queries/auth_login/auth_login.dart

@@ -0,0 +1,61 @@
+import 'package:dio/dio.dart';
+
+import '../../auth/token_storage.dart';
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'auth_login_response.dart';
+
+/// Performs the Marianum-Connect bearer login. Used both by the foreground
+/// login flow and by the auth interceptor's silent re-auth on 401. Does *not*
+/// run through the shared dio instance — that one has the interceptor, which
+/// would attempt to re-auth us into a loop if our credentials are wrong.
+class AuthLogin {
+  static const Duration _connectTimeout = Duration(seconds: 10);
+  static const Duration _receiveTimeout = Duration(seconds: 15);
+
+  final MarianumConnectTokenStorage _tokenStorage;
+  final Dio _dio;
+
+  AuthLogin({
+    MarianumConnectTokenStorage tokenStorage =
+        const MarianumConnectTokenStorage(),
+    Dio? dio,
+  }) : _tokenStorage = tokenStorage,
+       _dio =
+           dio ??
+           Dio(
+             BaseOptions(
+               connectTimeout: _connectTimeout,
+               receiveTimeout: _receiveTimeout,
+               sendTimeout: _connectTimeout,
+               responseType: ResponseType.json,
+               contentType: 'application/json',
+             ),
+           );
+
+  Future<AuthLoginResponse> run({
+    required String username,
+    required String password,
+    required String tokenName,
+  }) async {
+    try {
+      final response = await _dio.post<Map<String, dynamic>>(
+        MarianumConnectEndpoint.resolve('auth/login'),
+        data: {
+          'username': username,
+          'password': password,
+          'tokenName': tokenName,
+        },
+      );
+      final payload = AuthLoginResponse.fromJson(response.data!);
+      await _tokenStorage.write(
+        token: payload.token,
+        tokenId: payload.tokenId,
+        expiresAt: payload.expiresAt,
+      );
+      return payload;
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/auth_login/auth_login_response.dart

@@ -0,0 +1,54 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'auth_login_response.g.dart';
+
+@JsonSerializable()
+class AuthLoginUser {
+  final String id;
+  final String username;
+  final String firstName;
+  final String lastName;
+  final String? userType;
+  final String? className;
+
+  AuthLoginUser({
+    required this.id,
+    required this.username,
+    required this.firstName,
+    required this.lastName,
+    required this.userType,
+    required this.className,
+  });
+
+  factory AuthLoginUser.fromJson(Map<String, dynamic> json) =>
+      _$AuthLoginUserFromJson(json);
+  Map<String, dynamic> toJson() => _$AuthLoginUserToJson(this);
+}
+
+@JsonSerializable()
+class AuthLoginResponse {
+  final String token;
+  final String tokenId;
+
+  @JsonKey(fromJson: _expiresFromJson)
+  final DateTime? expiresAt;
+
+  final AuthLoginUser user;
+
+  AuthLoginResponse({
+    required this.token,
+    required this.tokenId,
+    required this.expiresAt,
+    required this.user,
+  });
+
+  factory AuthLoginResponse.fromJson(Map<String, dynamic> json) =>
+      _$AuthLoginResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$AuthLoginResponseToJson(this);
+
+  static DateTime? _expiresFromJson(Object? value) {
+    if (value == null) return null;
+    if (value is String) return DateTime.tryParse(value);
+    return null;
+  }
+}

lib/api/marianumconnect/queries/auth_login/auth_login_response.g.dart

@@ -0,0 +1,43 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'auth_login_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+AuthLoginUser _$AuthLoginUserFromJson(Map<String, dynamic> json) =>
+    AuthLoginUser(
+      id: json['id'] as String,
+      username: json['username'] as String,
+      firstName: json['firstName'] as String,
+      lastName: json['lastName'] as String,
+      userType: json['userType'] as String?,
+      className: json['className'] as String?,
+    );
+
+Map<String, dynamic> _$AuthLoginUserToJson(AuthLoginUser instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'username': instance.username,
+      'firstName': instance.firstName,
+      'lastName': instance.lastName,
+      'userType': instance.userType,
+      'className': instance.className,
+    };
+
+AuthLoginResponse _$AuthLoginResponseFromJson(Map<String, dynamic> json) =>
+    AuthLoginResponse(
+      token: json['token'] as String,
+      tokenId: json['tokenId'] as String,
+      expiresAt: AuthLoginResponse._expiresFromJson(json['expiresAt']),
+      user: AuthLoginUser.fromJson(json['user'] as Map<String, dynamic>),
+    );
+
+Map<String, dynamic> _$AuthLoginResponseToJson(AuthLoginResponse instance) =>
+    <String, dynamic>{
+      'token': instance.token,
+      'tokenId': instance.tokenId,
+      'expiresAt': instance.expiresAt?.toIso8601String(),
+      'user': instance.user,
+    };

lib/api/marianumconnect/queries/auth_logout/auth_logout.dart

@@ -0,0 +1,30 @@
+import 'package:dio/dio.dart';
+
+import '../../auth/token_storage.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+
+/// Revokes the stored MC bearer token both server-side and locally. Best-effort
+/// — a network error still clears the local token so the user isn't stuck with
+/// an unusable session.
+class AuthLogout {
+  final MarianumConnectTokenStorage _tokenStorage;
+  final Dio _dio;
+
+  AuthLogout({
+    MarianumConnectTokenStorage tokenStorage =
+        const MarianumConnectTokenStorage(),
+    Dio? dio,
+  }) : _tokenStorage = tokenStorage,
+       _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<void> run() async {
+    try {
+      await _dio.post<void>(MarianumConnectEndpoint.resolve('auth/logout'));
+    } on DioException catch (_) {
+      // ignore — local clear below still happens
+    } finally {
+      await _tokenStorage.clear();
+    }
+  }
+}

lib/api/marianumconnect/queries/auth_verify/auth_verify.dart

@@ -0,0 +1,62 @@
+import 'package:dio/dio.dart';
+
+import '../../../errors/auth_exception.dart';
+import '../../auth/token_storage.dart';
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_endpoint.dart';
+
+/// Probes that the stored bearer token still maps to the given credentials.
+/// Server returns 200 only when the credentials belong to the user that the
+/// token was issued for — a password rotation on that user's account flips
+/// it to 401 even if the token itself would still be accepted.
+///
+/// Bypasses the shared dio singleton so the auth interceptor doesn't kick in
+/// and obscure a real 401 with a silent re-login.
+class AuthVerify {
+  static const Duration _connectTimeout = Duration(seconds: 10);
+  static const Duration _receiveTimeout = Duration(seconds: 15);
+
+  final MarianumConnectTokenStorage _tokenStorage;
+  final Dio _dio;
+
+  AuthVerify({
+    MarianumConnectTokenStorage tokenStorage =
+        const MarianumConnectTokenStorage(),
+    Dio? dio,
+  }) : _tokenStorage = tokenStorage,
+       _dio =
+           dio ??
+           Dio(
+             BaseOptions(
+               connectTimeout: _connectTimeout,
+               sendTimeout: _connectTimeout,
+               receiveTimeout: _receiveTimeout,
+               responseType: ResponseType.json,
+               contentType: 'application/json',
+             ),
+           );
+
+  /// Throws [AuthException] on 401 (credentials no longer match the token's
+  /// user, token missing, or token rejected), other [AppException]s on
+  /// network/server errors. Completes silently on success.
+  Future<void> run({
+    required String username,
+    required String password,
+  }) async {
+    final token = await _tokenStorage.readToken();
+    if (token == null || token.isEmpty) {
+      throw AuthException.unauthorized(
+        technicalDetails: 'AuthVerify: no bearer token in storage',
+      );
+    }
+    try {
+      await _dio.post<void>(
+        MarianumConnectEndpoint.resolve('auth/verify'),
+        data: {'username': username, 'password': password},
+        options: Options(headers: {'Authorization': 'Bearer $token'}),
+      );
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays.dart

@@ -0,0 +1,26 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_holidays_response.dart';
+
+class TimetableGetHolidays {
+  final Dio _dio;
+
+  TimetableGetHolidays({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetHolidaysResponse> run() async {
+    try {
+      final response = await _dio.get<List<dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/holidays'),
+      );
+      final list = response.data!
+          .map((e) => McHoliday.fromJson(e as Map<String, dynamic>))
+          .toList();
+      return TimetableGetHolidaysResponse(result: list);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart

@@ -0,0 +1,43 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_holidays_response.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class McHoliday {
+  final String shortName;
+  final String longName;
+
+  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
+  final DateTime startDate;
+
+  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
+  final DateTime endDate;
+
+  McHoliday({
+    required this.shortName,
+    required this.longName,
+    required this.startDate,
+    required this.endDate,
+  });
+
+  factory McHoliday.fromJson(Map<String, dynamic> json) =>
+      _$McHolidayFromJson(json);
+  Map<String, dynamic> toJson() => _$McHolidayToJson(this);
+
+  static DateTime _dateFromJson(String raw) => DateTime.parse(raw);
+  static String _dateToJson(DateTime d) =>
+      '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+}
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetHolidaysResponse extends ApiResponse {
+  final List<McHoliday> result;
+
+  TimetableGetHolidaysResponse({required this.result});
+
+  factory TimetableGetHolidaysResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetHolidaysResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$TimetableGetHolidaysResponseToJson(this);
+}

lib/api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.g.dart

@@ -0,0 +1,40 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_holidays_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+McHoliday _$McHolidayFromJson(Map<String, dynamic> json) => McHoliday(
+  shortName: json['shortName'] as String,
+  longName: json['longName'] as String,
+  startDate: McHoliday._dateFromJson(json['startDate'] as String),
+  endDate: McHoliday._dateFromJson(json['endDate'] as String),
+);
+
+Map<String, dynamic> _$McHolidayToJson(McHoliday instance) => <String, dynamic>{
+  'shortName': instance.shortName,
+  'longName': instance.longName,
+  'startDate': McHoliday._dateToJson(instance.startDate),
+  'endDate': McHoliday._dateToJson(instance.endDate),
+};
+
+TimetableGetHolidaysResponse _$TimetableGetHolidaysResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetHolidaysResponse(
+        result: (json['result'] as List<dynamic>)
+            .map((e) => McHoliday.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetHolidaysResponseToJson(
+  TimetableGetHolidaysResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'result': instance.result.map((e) => e.toJson()).toList(),
+};

lib/api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms.dart

@@ -0,0 +1,26 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_rooms_response.dart';
+
+class TimetableGetRooms {
+  final Dio _dio;
+
+  TimetableGetRooms({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetRoomsResponse> run() async {
+    try {
+      final response = await _dio.get<List<dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/rooms'),
+      );
+      final list = response.data!
+          .map((e) => McRoom.fromJson(e as Map<String, dynamic>))
+          .toList();
+      return TimetableGetRoomsResponse(result: list);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.dart

@@ -0,0 +1,28 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_rooms_response.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class McRoom {
+  final int id;
+  final String shortName;
+  final String longName;
+
+  McRoom({required this.id, required this.shortName, required this.longName});
+
+  factory McRoom.fromJson(Map<String, dynamic> json) => _$McRoomFromJson(json);
+  Map<String, dynamic> toJson() => _$McRoomToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetRoomsResponse extends ApiResponse {
+  final List<McRoom> result;
+
+  TimetableGetRoomsResponse({required this.result});
+
+  factory TimetableGetRoomsResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetRoomsResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$TimetableGetRoomsResponseToJson(this);
+}

lib/api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.g.dart

@@ -0,0 +1,38 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_rooms_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+McRoom _$McRoomFromJson(Map<String, dynamic> json) => McRoom(
+  id: (json['id'] as num).toInt(),
+  shortName: json['shortName'] as String,
+  longName: json['longName'] as String,
+);
+
+Map<String, dynamic> _$McRoomToJson(McRoom instance) => <String, dynamic>{
+  'id': instance.id,
+  'shortName': instance.shortName,
+  'longName': instance.longName,
+};
+
+TimetableGetRoomsResponse _$TimetableGetRoomsResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetRoomsResponse(
+        result: (json['result'] as List<dynamic>)
+            .map((e) => McRoom.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetRoomsResponseToJson(
+  TimetableGetRoomsResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'result': instance.result.map((e) => e.toJson()).toList(),
+};

lib/api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear.dart

@@ -0,0 +1,23 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_schoolyear_response.dart';
+
+class TimetableGetSchoolyear {
+  final Dio _dio;
+
+  TimetableGetSchoolyear({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetSchoolyearResponse> run() async {
+    try {
+      final response = await _dio.get<Map<String, dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/schoolyear'),
+      );
+      return TimetableGetSchoolyearResponse.fromJson(response.data!);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear_response.dart

@@ -0,0 +1,33 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_schoolyear_response.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetSchoolyearResponse extends ApiResponse {
+  final int id;
+  final String name;
+
+  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
+  final DateTime startDate;
+
+  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
+  final DateTime endDate;
+
+  TimetableGetSchoolyearResponse({
+    required this.id,
+    required this.name,
+    required this.startDate,
+    required this.endDate,
+  });
+
+  factory TimetableGetSchoolyearResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetSchoolyearResponseFromJson(json);
+  Map<String, dynamic> toJson() =>
+      _$TimetableGetSchoolyearResponseToJson(this);
+
+  static DateTime _dateFromJson(String raw) => DateTime.parse(raw);
+  static String _dateToJson(DateTime d) =>
+      '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+}

lib/api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear_response.g.dart

@@ -0,0 +1,34 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_schoolyear_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+TimetableGetSchoolyearResponse _$TimetableGetSchoolyearResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetSchoolyearResponse(
+        id: (json['id'] as num).toInt(),
+        name: json['name'] as String,
+        startDate: TimetableGetSchoolyearResponse._dateFromJson(
+          json['startDate'] as String,
+        ),
+        endDate: TimetableGetSchoolyearResponse._dateFromJson(
+          json['endDate'] as String,
+        ),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetSchoolyearResponseToJson(
+  TimetableGetSchoolyearResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'id': instance.id,
+  'name': instance.name,
+  'startDate': TimetableGetSchoolyearResponse._dateToJson(instance.startDate),
+  'endDate': TimetableGetSchoolyearResponse._dateToJson(instance.endDate),
+};

lib/api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects.dart

@@ -0,0 +1,26 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_subjects_response.dart';
+
+class TimetableGetSubjects {
+  final Dio _dio;
+
+  TimetableGetSubjects({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetSubjectsResponse> run() async {
+    try {
+      final response = await _dio.get<List<dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/subjects'),
+      );
+      final list = response.data!
+          .map((e) => McSubject.fromJson(e as Map<String, dynamic>))
+          .toList();
+      return TimetableGetSubjectsResponse(result: list);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.dart

@@ -0,0 +1,33 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_subjects_response.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class McSubject {
+  final int id;
+  final String shortName;
+  final String longName;
+
+  McSubject({
+    required this.id,
+    required this.shortName,
+    required this.longName,
+  });
+
+  factory McSubject.fromJson(Map<String, dynamic> json) =>
+      _$McSubjectFromJson(json);
+  Map<String, dynamic> toJson() => _$McSubjectToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetSubjectsResponse extends ApiResponse {
+  final List<McSubject> result;
+
+  TimetableGetSubjectsResponse({required this.result});
+
+  factory TimetableGetSubjectsResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetSubjectsResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$TimetableGetSubjectsResponseToJson(this);
+}

lib/api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.g.dart

@@ -0,0 +1,38 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_subjects_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+McSubject _$McSubjectFromJson(Map<String, dynamic> json) => McSubject(
+  id: (json['id'] as num).toInt(),
+  shortName: json['shortName'] as String,
+  longName: json['longName'] as String,
+);
+
+Map<String, dynamic> _$McSubjectToJson(McSubject instance) => <String, dynamic>{
+  'id': instance.id,
+  'shortName': instance.shortName,
+  'longName': instance.longName,
+};
+
+TimetableGetSubjectsResponse _$TimetableGetSubjectsResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetSubjectsResponse(
+        result: (json['result'] as List<dynamic>)
+            .map((e) => McSubject.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetSubjectsResponseToJson(
+  TimetableGetSubjectsResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'result': instance.result.map((e) => e.toJson()).toList(),
+};

lib/api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid.dart

@@ -0,0 +1,26 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_timegrid_response.dart';
+
+class TimetableGetTimegrid {
+  final Dio _dio;
+
+  TimetableGetTimegrid({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetTimegridResponse> run() async {
+    try {
+      final response = await _dio.get<List<dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/timegrid'),
+      );
+      final list = response.data!
+          .map((e) => McTimegridUnit.fromJson(e as Map<String, dynamic>))
+          .toList();
+      return TimetableGetTimegridResponse(result: list);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+}

lib/api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.dart

@@ -0,0 +1,98 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_timegrid_response.g.dart';
+
+/// Java DayOfWeek serializes as the enum name (MONDAY, TUESDAY, …).
+enum McDayOfWeek {
+  monday,
+  tuesday,
+  wednesday,
+  thursday,
+  friday,
+  saturday,
+  sunday,
+}
+
+McDayOfWeek _dayFromJson(String raw) {
+  switch (raw.toUpperCase()) {
+    case 'MONDAY':
+      return McDayOfWeek.monday;
+    case 'TUESDAY':
+      return McDayOfWeek.tuesday;
+    case 'WEDNESDAY':
+      return McDayOfWeek.wednesday;
+    case 'THURSDAY':
+      return McDayOfWeek.thursday;
+    case 'FRIDAY':
+      return McDayOfWeek.friday;
+    case 'SATURDAY':
+      return McDayOfWeek.saturday;
+    case 'SUNDAY':
+      return McDayOfWeek.sunday;
+    default:
+      // Unknown values keep the timetable rendering from crashing; the UI
+      // falls back to its hardcoded grid in that case.
+      return McDayOfWeek.monday;
+  }
+}
+
+String _dayToJson(McDayOfWeek d) {
+  switch (d) {
+    case McDayOfWeek.monday:
+      return 'MONDAY';
+    case McDayOfWeek.tuesday:
+      return 'TUESDAY';
+    case McDayOfWeek.wednesday:
+      return 'WEDNESDAY';
+    case McDayOfWeek.thursday:
+      return 'THURSDAY';
+    case McDayOfWeek.friday:
+      return 'FRIDAY';
+    case McDayOfWeek.saturday:
+      return 'SATURDAY';
+    case McDayOfWeek.sunday:
+      return 'SUNDAY';
+  }
+}
+
+@JsonSerializable(explicitToJson: true)
+class McTimegridUnit {
+  @JsonKey(fromJson: _dayFromJson, toJson: _dayToJson)
+  final McDayOfWeek dayOfWeek;
+
+  final String label;
+
+  @JsonKey(fromJson: _timeFromJson, toJson: _timeToJson)
+  final DateTime startTime;
+
+  @JsonKey(fromJson: _timeFromJson, toJson: _timeToJson)
+  final DateTime endTime;
+
+  McTimegridUnit({
+    required this.dayOfWeek,
+    required this.label,
+    required this.startTime,
+    required this.endTime,
+  });
+
+  factory McTimegridUnit.fromJson(Map<String, dynamic> json) =>
+      _$McTimegridUnitFromJson(json);
+  Map<String, dynamic> toJson() => _$McTimegridUnitToJson(this);
+
+  static DateTime _timeFromJson(String raw) => DateTime.parse('1970-01-01T$raw');
+  static String _timeToJson(DateTime t) =>
+      '${t.hour.toString().padLeft(2, '0')}:${t.minute.toString().padLeft(2, '0')}:${t.second.toString().padLeft(2, '0')}';
+}
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetTimegridResponse extends ApiResponse {
+  final List<McTimegridUnit> result;
+
+  TimetableGetTimegridResponse({required this.result});
+
+  factory TimetableGetTimegridResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetTimegridResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$TimetableGetTimegridResponseToJson(this);
+}

lib/api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.g.dart

@@ -0,0 +1,42 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_timegrid_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+McTimegridUnit _$McTimegridUnitFromJson(Map<String, dynamic> json) =>
+    McTimegridUnit(
+      dayOfWeek: _dayFromJson(json['dayOfWeek'] as String),
+      label: json['label'] as String,
+      startTime: McTimegridUnit._timeFromJson(json['startTime'] as String),
+      endTime: McTimegridUnit._timeFromJson(json['endTime'] as String),
+    );
+
+Map<String, dynamic> _$McTimegridUnitToJson(McTimegridUnit instance) =>
+    <String, dynamic>{
+      'dayOfWeek': _dayToJson(instance.dayOfWeek),
+      'label': instance.label,
+      'startTime': McTimegridUnit._timeToJson(instance.startTime),
+      'endTime': McTimegridUnit._timeToJson(instance.endTime),
+    };
+
+TimetableGetTimegridResponse _$TimetableGetTimegridResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetTimegridResponse(
+        result: (json['result'] as List<dynamic>)
+            .map((e) => McTimegridUnit.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetTimegridResponseToJson(
+  TimetableGetTimegridResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'result': instance.result.map((e) => e.toJson()).toList(),
+};

lib/api/marianumconnect/queries/timetable_get_week/timetable_get_week.dart

@@ -0,0 +1,33 @@
+import 'package:dio/dio.dart';
+
+import '../../errors/marianumconnect_error.dart';
+import '../../marianumconnect_api.dart';
+import '../../marianumconnect_endpoint.dart';
+import 'timetable_get_week_response.dart';
+
+class TimetableGetWeek {
+  final Dio _dio;
+
+  TimetableGetWeek({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+
+  Future<TimetableGetWeekResponse> run({
+    required DateTime from,
+    required DateTime until,
+  }) async {
+    try {
+      final response = await _dio.get<Map<String, dynamic>>(
+        MarianumConnectEndpoint.resolve('timetable/me'),
+        queryParameters: {
+          'from': _format(from),
+          'until': _format(until),
+        },
+      );
+      return TimetableGetWeekResponse.fromJson(response.data!);
+    } on DioException catch (e) {
+      throw mapMarianumConnectError(e);
+    }
+  }
+
+  String _format(DateTime d) =>
+      '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+}

lib/api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart

@@ -0,0 +1,108 @@
+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../api_response.dart';
+
+part 'timetable_get_week_response.g.dart';
+
+@JsonSerializable(explicitToJson: true)
+class McTimetableTeacher {
+  final String shortName;
+  final String displayName;
+  final String? originalShortName;
+  final String? originalDisplayName;
+
+  McTimetableTeacher({
+    required this.shortName,
+    required this.displayName,
+    this.originalShortName,
+    this.originalDisplayName,
+  });
+
+  factory McTimetableTeacher.fromJson(Map<String, dynamic> json) =>
+      _$McTimetableTeacherFromJson(json);
+  Map<String, dynamic> toJson() => _$McTimetableTeacherToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true)
+class McTimetableEntry {
+  final int id;
+
+  @JsonKey(fromJson: _dateFromJson, toJson: _dateToJson)
+  final DateTime date;
+
+  @JsonKey(fromJson: _timeFromJson, toJson: _timeToJson)
+  final DateTime startTime;
+
+  @JsonKey(fromJson: _timeFromJson, toJson: _timeToJson)
+  final DateTime endTime;
+
+  final List<String> subjects;
+  final List<McTimetableTeacher> teachers;
+  final List<String> rooms;
+  final List<String> classNames;
+  final String lessonType;
+  final String status;
+  final String? substitutionText;
+  final String? lessonText;
+  final String? infoText;
+
+  McTimetableEntry({
+    required this.id,
+    required this.date,
+    required this.startTime,
+    required this.endTime,
+    required this.subjects,
+    required this.teachers,
+    required this.rooms,
+    required this.classNames,
+    required this.lessonType,
+    required this.status,
+    required this.substitutionText,
+    required this.lessonText,
+    required this.infoText,
+  });
+
+  factory McTimetableEntry.fromJson(Map<String, dynamic> json) =>
+      _$McTimetableEntryFromJson(json);
+  Map<String, dynamic> toJson() => _$McTimetableEntryToJson(this);
+
+  /// Combines the calendar date with the hour/minute portion of [startTime]
+  /// (which carries a 1970 placeholder date) into a real DateTime.
+  DateTime get startDateTime =>
+      DateTime(date.year, date.month, date.day, startTime.hour, startTime.minute);
+
+  DateTime get endDateTime =>
+      DateTime(date.year, date.month, date.day, endTime.hour, endTime.minute);
+
+  static DateTime _dateFromJson(String raw) => DateTime.parse(raw);
+  static String _dateToJson(DateTime d) =>
+      '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+
+  // Backend sends ISO_LOCAL_TIME (e.g. "08:00:00" or "08:00"). Parsed via a
+  // fixed-date prefix so we get a real DateTime out of it; only hour/minute
+  // are meaningful for rendering.
+  static DateTime _timeFromJson(String raw) => DateTime.parse('1970-01-01T$raw');
+  static String _timeToJson(DateTime t) =>
+      '${t.hour.toString().padLeft(2, '0')}:${t.minute.toString().padLeft(2, '0')}:${t.second.toString().padLeft(2, '0')}';
+}
+
+@JsonSerializable(explicitToJson: true)
+class TimetableGetWeekResponse extends ApiResponse {
+  @JsonKey(fromJson: McTimetableEntry._dateFromJson, toJson: McTimetableEntry._dateToJson)
+  final DateTime from;
+
+  @JsonKey(fromJson: McTimetableEntry._dateFromJson, toJson: McTimetableEntry._dateToJson)
+  final DateTime until;
+
+  final List<McTimetableEntry> entries;
+
+  TimetableGetWeekResponse({
+    required this.from,
+    required this.until,
+    required this.entries,
+  });
+
+  factory TimetableGetWeekResponse.fromJson(Map<String, dynamic> json) =>
+      _$TimetableGetWeekResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$TimetableGetWeekResponseToJson(this);
+}

lib/api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.g.dart

@@ -0,0 +1,86 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'timetable_get_week_response.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+McTimetableTeacher _$McTimetableTeacherFromJson(Map<String, dynamic> json) =>
+    McTimetableTeacher(
+      shortName: json['shortName'] as String,
+      displayName: json['displayName'] as String,
+      originalShortName: json['originalShortName'] as String?,
+      originalDisplayName: json['originalDisplayName'] as String?,
+    );
+
+Map<String, dynamic> _$McTimetableTeacherToJson(McTimetableTeacher instance) =>
+    <String, dynamic>{
+      'shortName': instance.shortName,
+      'displayName': instance.displayName,
+      'originalShortName': instance.originalShortName,
+      'originalDisplayName': instance.originalDisplayName,
+    };
+
+McTimetableEntry _$McTimetableEntryFromJson(Map<String, dynamic> json) =>
+    McTimetableEntry(
+      id: (json['id'] as num).toInt(),
+      date: McTimetableEntry._dateFromJson(json['date'] as String),
+      startTime: McTimetableEntry._timeFromJson(json['startTime'] as String),
+      endTime: McTimetableEntry._timeFromJson(json['endTime'] as String),
+      subjects: (json['subjects'] as List<dynamic>)
+          .map((e) => e as String)
+          .toList(),
+      teachers: (json['teachers'] as List<dynamic>)
+          .map((e) => McTimetableTeacher.fromJson(e as Map<String, dynamic>))
+          .toList(),
+      rooms: (json['rooms'] as List<dynamic>).map((e) => e as String).toList(),
+      classNames: (json['classNames'] as List<dynamic>)
+          .map((e) => e as String)
+          .toList(),
+      lessonType: json['lessonType'] as String,
+      status: json['status'] as String,
+      substitutionText: json['substitutionText'] as String?,
+      lessonText: json['lessonText'] as String?,
+      infoText: json['infoText'] as String?,
+    );
+
+Map<String, dynamic> _$McTimetableEntryToJson(McTimetableEntry instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'date': McTimetableEntry._dateToJson(instance.date),
+      'startTime': McTimetableEntry._timeToJson(instance.startTime),
+      'endTime': McTimetableEntry._timeToJson(instance.endTime),
+      'subjects': instance.subjects,
+      'teachers': instance.teachers.map((e) => e.toJson()).toList(),
+      'rooms': instance.rooms,
+      'classNames': instance.classNames,
+      'lessonType': instance.lessonType,
+      'status': instance.status,
+      'substitutionText': instance.substitutionText,
+      'lessonText': instance.lessonText,
+      'infoText': instance.infoText,
+    };
+
+TimetableGetWeekResponse _$TimetableGetWeekResponseFromJson(
+  Map<String, dynamic> json,
+) =>
+    TimetableGetWeekResponse(
+        from: McTimetableEntry._dateFromJson(json['from'] as String),
+        until: McTimetableEntry._dateFromJson(json['until'] as String),
+        entries: (json['entries'] as List<dynamic>)
+            .map((e) => McTimetableEntry.fromJson(e as Map<String, dynamic>))
+            .toList(),
+      )
+      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
+        (k, e) => MapEntry(k, e as String),
+      );
+
+Map<String, dynamic> _$TimetableGetWeekResponseToJson(
+  TimetableGetWeekResponse instance,
+) => <String, dynamic>{
+  'headers': ?instance.headers,
+  'from': McTimetableEntry._dateToJson(instance.from),
+  'until': McTimetableEntry._dateToJson(instance.until),
+  'entries': instance.entries.map((e) => e.toJson()).toList(),
+};

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

@@ -1,66 +0,0 @@
-import 'dart:async';
-import 'dart:convert';
-
-import '../../../../model/account_data.dart';
-import '../../webuntis_api.dart';
-import 'authenticate_params.dart';
-import 'authenticate_response.dart';
-
-class Authenticate extends WebuntisApi {
-  AuthenticateParams param;
-
-  Authenticate(this.param)
-    : super('authenticate', param, authenticatedResponse: false);
-
-  @override
-  Future<AuthenticateResponse> run() async {
-    awaitingResponse = true;
-    try {
-      final rawAnswer = await query(this);
-      final decoded = jsonDecode(rawAnswer) as Map<String, dynamic>;
-      final response = finalize(
-        AuthenticateResponse.fromJson(
-          decoded['result'] as Map<String, dynamic>,
-        ),
-      );
-      _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<void>();
-      rethrow;
-    } finally {
-      awaitingResponse = false;
-    }
-  }
-
-  static bool awaitingResponse = false;
-  static Completer<void> awaitedResponse = Completer<void>();
-  static AuthenticateResponse? _lastResponse;
-
-  static Future<void> createSession() async {
-    _lastResponse = await Authenticate(
-      AuthenticateParams(
-        user: AccountData().getUsername(),
-        password: AccountData().getPassword(),
-      ),
-    ).run();
-  }
-
-  static Future<AuthenticateResponse> getSession() async {
-    if (awaitingResponse) {
-      await awaitedResponse.future;
-    }
-
-    if (_lastResponse == null) {
-      awaitingResponse = true;
-      await createSession();
-    }
-    return _lastResponse!;
-  }
-}

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

@@ -1,17 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_params.dart';
-
-part 'authenticate_params.g.dart';
-
-@JsonSerializable()
-class AuthenticateParams extends ApiParams {
-  String user;
-  String password;
-
-  AuthenticateParams({required this.user, required this.password});
-  factory AuthenticateParams.fromJson(Map<String, dynamic> json) =>
-      _$AuthenticateParamsFromJson(json);
-
-  Map<String, dynamic> toJson() => _$AuthenticateParamsToJson(this);
-}

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

@@ -1,16 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'authenticate_params.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-AuthenticateParams _$AuthenticateParamsFromJson(Map<String, dynamic> json) =>
-    AuthenticateParams(
-      user: json['user'] as String,
-      password: json['password'] as String,
-    );
-
-Map<String, dynamic> _$AuthenticateParamsToJson(AuthenticateParams instance) =>
-    <String, dynamic>{'user': instance.user, 'password': instance.password};

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

@@ -1,24 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'authenticate_response.g.dart';
-
-@JsonSerializable()
-class AuthenticateResponse extends ApiResponse {
-  String sessionId;
-  int personType;
-  int personId;
-  int klasseId;
-
-  AuthenticateResponse(
-    this.sessionId,
-    this.personType,
-    this.personId,
-    this.klasseId,
-  );
-
-  factory AuthenticateResponse.fromJson(Map<String, dynamic> json) =>
-      _$AuthenticateResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$AuthenticateResponseToJson(this);
-}

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

@@ -1,30 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'authenticate_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-AuthenticateResponse _$AuthenticateResponseFromJson(
-  Map<String, dynamic> json,
-) =>
-    AuthenticateResponse(
-        json['sessionId'] as String,
-        (json['personType'] as num).toInt(),
-        (json['personId'] as num).toInt(),
-        (json['klasseId'] as num).toInt(),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$AuthenticateResponseToJson(
-  AuthenticateResponse instance,
-) => <String, dynamic>{
-  'headers': ?instance.headers,
-  'sessionId': instance.sessionId,
-  'personType': instance.personType,
-  'personId': instance.personId,
-  'klasseId': instance.klasseId,
-};

lib/api/webuntis/queries/get_current_schoolyear/get_current_schoolyear.dart

@@ -1,18 +0,0 @@
-import 'dart:convert';
-
-import '../../webuntis_api.dart';
-import 'get_current_schoolyear_response.dart';
-
-class GetCurrentSchoolyear extends WebuntisApi {
-  GetCurrentSchoolyear() : super('getCurrentSchoolyear', null);
-
-  @override
-  Future<GetCurrentSchoolyearResponse> run() async {
-    final rawAnswer = await query(this);
-    return finalize(
-      GetCurrentSchoolyearResponse.fromJson(
-        jsonDecode(rawAnswer) as Map<String, dynamic>,
-      ),
-    );
-  }
-}

lib/api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_cache.dart

@@ -1,15 +0,0 @@
-import '../../../request_cache.dart';
-import 'get_current_schoolyear.dart';
-import 'get_current_schoolyear_response.dart';
-
-class GetCurrentSchoolyearCache
-    extends SimpleCache<GetCurrentSchoolyearResponse> {
-  GetCurrentSchoolyearCache({super.onUpdate, super.onError, super.renew})
-    : super(
-        cacheTime: RequestCache.cacheDay,
-        loader: () => GetCurrentSchoolyear().run(),
-        fromJson: GetCurrentSchoolyearResponse.fromJson,
-      ) {
-    start('wu-current-schoolyear');
-  }
-}

lib/api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_response.dart

@@ -1,39 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_current_schoolyear_response.g.dart';
-
-/// Wraps Webuntis' `getCurrentSchoolyear` payload. The server returns a
-/// single object with the current school year's bounds (yyyyMMdd integers).
-@JsonSerializable(explicitToJson: true)
-class GetCurrentSchoolyearResponse extends ApiResponse {
-  GetCurrentSchoolyearResponseObject result;
-
-  GetCurrentSchoolyearResponse(this.result);
-
-  factory GetCurrentSchoolyearResponse.fromJson(Map<String, dynamic> json) =>
-      _$GetCurrentSchoolyearResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$GetCurrentSchoolyearResponseToJson(this);
-}
-
-@JsonSerializable()
-class GetCurrentSchoolyearResponseObject {
-  int id;
-  String name;
-  int startDate;
-  int endDate;
-
-  GetCurrentSchoolyearResponseObject(
-    this.id,
-    this.name,
-    this.startDate,
-    this.endDate,
-  );
-
-  factory GetCurrentSchoolyearResponseObject.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetCurrentSchoolyearResponseObjectFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetCurrentSchoolyearResponseObjectToJson(this);
-}

lib/api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_response.g.dart

@@ -1,44 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_current_schoolyear_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetCurrentSchoolyearResponse _$GetCurrentSchoolyearResponseFromJson(
-  Map<String, dynamic> json,
-) =>
-    GetCurrentSchoolyearResponse(
-        GetCurrentSchoolyearResponseObject.fromJson(
-          json['result'] as Map<String, dynamic>,
-        ),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$GetCurrentSchoolyearResponseToJson(
-  GetCurrentSchoolyearResponse instance,
-) => <String, dynamic>{
-  'headers': ?instance.headers,
-  'result': instance.result.toJson(),
-};
-
-GetCurrentSchoolyearResponseObject _$GetCurrentSchoolyearResponseObjectFromJson(
-  Map<String, dynamic> json,
-) => GetCurrentSchoolyearResponseObject(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  (json['startDate'] as num).toInt(),
-  (json['endDate'] as num).toInt(),
-);
-
-Map<String, dynamic> _$GetCurrentSchoolyearResponseObjectToJson(
-  GetCurrentSchoolyearResponseObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'startDate': instance.startDate,
-  'endDate': instance.endDate,
-};

lib/api/webuntis/queries/get_holidays/get_holidays.dart

@@ -1,34 +0,0 @@
-import 'dart:convert';
-
-import '../../webuntis_api.dart';
-import 'get_holidays_response.dart';
-
-class GetHolidays extends WebuntisApi {
-  GetHolidays() : super('getHolidays', null);
-
-  @override
-  Future<GetHolidaysResponse> run() async {
-    final rawAnswer = await query(this);
-    return finalize(
-      GetHolidaysResponse.fromJson(
-        jsonDecode(rawAnswer) as Map<String, dynamic>,
-      ),
-    );
-  }
-
-  static GetHolidaysResponseObject? find(
-    GetHolidaysResponse holidaysResponse, {
-    DateTime? time,
-  }) {
-    time ??= DateTime.now();
-    time = DateTime(time.year, time.month, time.day, 0, 0, 0, 0, 0);
-
-    for (var element in holidaysResponse.result) {
-      var start = DateTime.parse(element.startDate.toString());
-      var end = DateTime.parse(element.endDate.toString());
-
-      if (!start.isAfter(time) && !end.isBefore(time)) return element;
-    }
-    return null;
-  }
-}

lib/api/webuntis/queries/get_holidays/get_holidays_cache.dart

@@ -1,14 +0,0 @@
-import '../../../request_cache.dart';
-import 'get_holidays.dart';
-import 'get_holidays_response.dart';
-
-class GetHolidaysCache extends SimpleCache<GetHolidaysResponse> {
-  GetHolidaysCache({super.onUpdate, super.onError, super.renew})
-    : super(
-        cacheTime: RequestCache.cacheDay,
-        loader: () => GetHolidays().run(),
-        fromJson: GetHolidaysResponse.fromJson,
-      ) {
-    start('wu-holidays');
-  }
-}

lib/api/webuntis/queries/get_holidays/get_holidays_response.dart

@@ -1,37 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_holidays_response.g.dart';
-
-@JsonSerializable(explicitToJson: true)
-class GetHolidaysResponse extends ApiResponse {
-  Set<GetHolidaysResponseObject> result;
-
-  GetHolidaysResponse(this.result);
-
-  factory GetHolidaysResponse.fromJson(Map<String, dynamic> json) =>
-      _$GetHolidaysResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$GetHolidaysResponseToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetHolidaysResponseObject {
-  int id;
-  String name;
-  String longName;
-  int startDate;
-  int endDate;
-
-  GetHolidaysResponseObject(
-    this.id,
-    this.name,
-    this.longName,
-    this.startDate,
-    this.endDate,
-  );
-
-  factory GetHolidaysResponseObject.fromJson(Map<String, dynamic> json) =>
-      _$GetHolidaysResponseObjectFromJson(json);
-  Map<String, dynamic> toJson() => _$GetHolidaysResponseObjectToJson(this);
-}

lib/api/webuntis/queries/get_holidays/get_holidays_response.g.dart

@@ -1,47 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_holidays_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetHolidaysResponse _$GetHolidaysResponseFromJson(Map<String, dynamic> json) =>
-    GetHolidaysResponse(
-        (json['result'] as List<dynamic>)
-            .map(
-              (e) =>
-                  GetHolidaysResponseObject.fromJson(e as Map<String, dynamic>),
-            )
-            .toSet(),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$GetHolidaysResponseToJson(
-  GetHolidaysResponse instance,
-) => <String, dynamic>{
-  'headers': ?instance.headers,
-  'result': instance.result.map((e) => e.toJson()).toList(),
-};
-
-GetHolidaysResponseObject _$GetHolidaysResponseObjectFromJson(
-  Map<String, dynamic> json,
-) => GetHolidaysResponseObject(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longName'] as String,
-  (json['startDate'] as num).toInt(),
-  (json['endDate'] as num).toInt(),
-);
-
-Map<String, dynamic> _$GetHolidaysResponseObjectToJson(
-  GetHolidaysResponseObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longName': instance.longName,
-  'startDate': instance.startDate,
-  'endDate': instance.endDate,
-};

lib/api/webuntis/queries/get_rooms/get_rooms.dart

@@ -1,26 +0,0 @@
-import 'dart:convert';
-import 'dart:developer';
-
-import '../../webuntis_api.dart';
-import 'get_rooms_response.dart';
-
-class GetRooms extends WebuntisApi {
-  GetRooms() : super('getRooms', null);
-
-  @override
-  Future<GetRoomsResponse> run() async {
-    final rawAnswer = await query(this);
-    try {
-      return finalize(
-        GetRoomsResponse.fromJson(
-          jsonDecode(rawAnswer) as Map<String, dynamic>,
-        ),
-      );
-    } catch (e, trace) {
-      log(trace.toString());
-      log('Failed to parse getRoom data with server response: $rawAnswer');
-    }
-
-    throw Exception('Failed to parse getRoom server response: $rawAnswer');
-  }
-}

lib/api/webuntis/queries/get_rooms/get_rooms_cache.dart

@@ -1,14 +0,0 @@
-import '../../../request_cache.dart';
-import 'get_rooms.dart';
-import 'get_rooms_response.dart';
-
-class GetRoomsCache extends SimpleCache<GetRoomsResponse> {
-  GetRoomsCache({super.onUpdate, super.onError, super.renew})
-    : super(
-        cacheTime: RequestCache.cacheHour,
-        loader: () => GetRooms().run(),
-        fromJson: GetRoomsResponse.fromJson,
-      ) {
-    start('wu-rooms');
-  }
-}

lib/api/webuntis/queries/get_rooms/get_rooms_response.dart

@@ -1,37 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_rooms_response.g.dart';
-
-@JsonSerializable(explicitToJson: true)
-class GetRoomsResponse extends ApiResponse {
-  Set<GetRoomsResponseObject> result;
-
-  GetRoomsResponse(this.result);
-
-  factory GetRoomsResponse.fromJson(Map<String, dynamic> json) =>
-      _$GetRoomsResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$GetRoomsResponseToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetRoomsResponseObject {
-  int id;
-  String name;
-  String longName;
-  bool active;
-  String building;
-
-  GetRoomsResponseObject(
-    this.id,
-    this.name,
-    this.longName,
-    this.active,
-    this.building,
-  );
-
-  factory GetRoomsResponseObject.fromJson(Map<String, dynamic> json) =>
-      _$GetRoomsResponseObjectFromJson(json);
-  Map<String, dynamic> toJson() => _$GetRoomsResponseObjectToJson(this);
-}

lib/api/webuntis/queries/get_rooms/get_rooms_response.g.dart

@@ -1,45 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_rooms_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetRoomsResponse _$GetRoomsResponseFromJson(Map<String, dynamic> json) =>
-    GetRoomsResponse(
-        (json['result'] as List<dynamic>)
-            .map(
-              (e) => GetRoomsResponseObject.fromJson(e as Map<String, dynamic>),
-            )
-            .toSet(),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$GetRoomsResponseToJson(GetRoomsResponse instance) =>
-    <String, dynamic>{
-      'headers': ?instance.headers,
-      'result': instance.result.map((e) => e.toJson()).toList(),
-    };
-
-GetRoomsResponseObject _$GetRoomsResponseObjectFromJson(
-  Map<String, dynamic> json,
-) => GetRoomsResponseObject(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longName'] as String,
-  json['active'] as bool,
-  json['building'] as String,
-);
-
-Map<String, dynamic> _$GetRoomsResponseObjectToJson(
-  GetRoomsResponseObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longName': instance.longName,
-  'active': instance.active,
-  'building': instance.building,
-};

lib/api/webuntis/queries/get_subjects/get_subjects.dart

@@ -1,18 +0,0 @@
-import 'dart:convert';
-
-import '../../webuntis_api.dart';
-import 'get_subjects_response.dart';
-
-class GetSubjects extends WebuntisApi {
-  GetSubjects() : super('getSubjects', null);
-
-  @override
-  Future<GetSubjectsResponse> run() async {
-    final rawAnswer = await query(this);
-    return finalize(
-      GetSubjectsResponse.fromJson(
-        jsonDecode(rawAnswer) as Map<String, dynamic>,
-      ),
-    );
-  }
-}

lib/api/webuntis/queries/get_subjects/get_subjects_cache.dart

@@ -1,14 +0,0 @@
-import '../../../request_cache.dart';
-import 'get_subjects.dart';
-import 'get_subjects_response.dart';
-
-class GetSubjectsCache extends SimpleCache<GetSubjectsResponse> {
-  GetSubjectsCache({super.onUpdate, super.onError, super.renew})
-    : super(
-        cacheTime: RequestCache.cacheHour,
-        loader: () => GetSubjects().run(),
-        fromJson: GetSubjectsResponse.fromJson,
-      ) {
-    start('wu-subjects');
-  }
-}

lib/api/webuntis/queries/get_subjects/get_subjects_response.dart

@@ -1,37 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_subjects_response.g.dart';
-
-@JsonSerializable(explicitToJson: true)
-class GetSubjectsResponse extends ApiResponse {
-  Set<GetSubjectsResponseObject> result;
-
-  GetSubjectsResponse(this.result);
-
-  factory GetSubjectsResponse.fromJson(Map<String, dynamic> json) =>
-      _$GetSubjectsResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$GetSubjectsResponseToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetSubjectsResponseObject {
-  int id;
-  String name;
-  String longName;
-  String alternateName;
-  bool active;
-
-  GetSubjectsResponseObject(
-    this.id,
-    this.name,
-    this.longName,
-    this.alternateName,
-    this.active,
-  );
-
-  factory GetSubjectsResponseObject.fromJson(Map<String, dynamic> json) =>
-      _$GetSubjectsResponseObjectFromJson(json);
-  Map<String, dynamic> toJson() => _$GetSubjectsResponseObjectToJson(this);
-}

lib/api/webuntis/queries/get_subjects/get_subjects_response.g.dart

@@ -1,47 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_subjects_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetSubjectsResponse _$GetSubjectsResponseFromJson(Map<String, dynamic> json) =>
-    GetSubjectsResponse(
-        (json['result'] as List<dynamic>)
-            .map(
-              (e) =>
-                  GetSubjectsResponseObject.fromJson(e as Map<String, dynamic>),
-            )
-            .toSet(),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$GetSubjectsResponseToJson(
-  GetSubjectsResponse instance,
-) => <String, dynamic>{
-  'headers': ?instance.headers,
-  'result': instance.result.map((e) => e.toJson()).toList(),
-};
-
-GetSubjectsResponseObject _$GetSubjectsResponseObjectFromJson(
-  Map<String, dynamic> json,
-) => GetSubjectsResponseObject(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longName'] as String,
-  json['alternateName'] as String,
-  json['active'] as bool,
-);
-
-Map<String, dynamic> _$GetSubjectsResponseObjectToJson(
-  GetSubjectsResponseObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longName': instance.longName,
-  'alternateName': instance.alternateName,
-  'active': instance.active,
-};

lib/api/webuntis/queries/get_timegrid_units/get_timegrid_units.dart

@@ -1,30 +0,0 @@
-import 'dart:convert';
-import 'dart:developer';
-
-import '../../webuntis_api.dart';
-import 'get_timegrid_units_response.dart';
-
-class GetTimegridUnits extends WebuntisApi {
-  GetTimegridUnits() : super('getTimegridUnits', null);
-
-  @override
-  Future<GetTimegridUnitsResponse> run() async {
-    final rawAnswer = await query(this);
-    try {
-      return finalize(
-        GetTimegridUnitsResponse.fromJson(
-          jsonDecode(rawAnswer) as Map<String, dynamic>,
-        ),
-      );
-    } 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/get_timegrid_units/get_timegrid_units_cache.dart

@@ -1,14 +0,0 @@
-import '../../../request_cache.dart';
-import 'get_timegrid_units.dart';
-import 'get_timegrid_units_response.dart';
-
-class GetTimegridUnitsCache extends SimpleCache<GetTimegridUnitsResponse> {
-  GetTimegridUnitsCache({super.onUpdate, super.renew})
-    : super(
-        cacheTime: RequestCache.cacheDay,
-        loader: () => GetTimegridUnits().run(),
-        fromJson: GetTimegridUnitsResponse.fromJson,
-      ) {
-    start('wu-timegrid');
-  }
-}

lib/api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart

@@ -1,41 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_timegrid_units_response.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/get_timegrid_units/get_timegrid_units_response.g.dart

@@ -1,64 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_timegrid_units_response.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/get_timetable/get_timetable.dart

@@ -1,21 +0,0 @@
-import 'dart:convert';
-
-import '../../webuntis_api.dart';
-import 'get_timetable_params.dart';
-import 'get_timetable_response.dart';
-
-class GetTimetable extends WebuntisApi {
-  GetTimetableParams params;
-
-  GetTimetable(this.params) : super('getTimetable', params);
-
-  @override
-  Future<GetTimetableResponse> run() async {
-    final rawAnswer = await query(this);
-    return finalize(
-      GetTimetableResponse.fromJson(
-        jsonDecode(rawAnswer) as Map<String, dynamic>,
-      ),
-    );
-  }
-}

lib/api/webuntis/queries/get_timetable/get_timetable_cache.dart

@@ -1,43 +0,0 @@
-import '../../../request_cache.dart';
-import '../authenticate/authenticate.dart';
-import 'get_timetable.dart';
-import 'get_timetable_params.dart';
-import 'get_timetable_response.dart';
-
-class GetTimetableCache extends SimpleCache<GetTimetableResponse> {
-  GetTimetableCache({
-    required void Function(GetTimetableResponse) onUpdate,
-    super.onError,
-    required int startdate,
-    required int enddate,
-    super.renew,
-  }) : super(
-         cacheTime: RequestCache.cacheMinute,
-         loader: () => _load(startdate, enddate),
-         fromJson: GetTimetableResponse.fromJson,
-         onUpdate: onUpdate,
-       ) {
-    start('wu-timetable-$startdate-$enddate');
-  }
-
-  static Future<GetTimetableResponse> _load(int startdate, int enddate) async {
-    final session = await Authenticate.getSession();
-    return GetTimetable(
-      GetTimetableParams(
-        options: GetTimetableParamsOptions(
-          element: GetTimetableParamsOptionsElement(
-            id: session.personId,
-            type: session.personType,
-            keyType: GetTimetableParamsOptionsElementKeyType.id,
-          ),
-          startDate: startdate,
-          endDate: enddate,
-          teacherFields: GetTimetableParamsOptionsFields.all,
-          subjectFields: GetTimetableParamsOptionsFields.all,
-          roomFields: GetTimetableParamsOptionsFields.all,
-          klasseFields: GetTimetableParamsOptionsFields.all,
-        ),
-      ),
-    ).run();
-  }
-}

lib/api/webuntis/queries/get_timetable/get_timetable_params.dart

@@ -1,114 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_params.dart';
-
-part 'get_timetable_params.g.dart';
-
-@JsonSerializable(explicitToJson: true)
-class GetTimetableParams extends ApiParams {
-  GetTimetableParamsOptions options;
-
-  GetTimetableParams({required this.options});
-
-  factory GetTimetableParams.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableParamsFromJson(json);
-  Map<String, dynamic> toJson() => _$GetTimetableParamsToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetTimetableParamsOptions {
-  GetTimetableParamsOptionsElement element;
-  @JsonKey(includeIfNull: false)
-  int? startDate;
-  @JsonKey(includeIfNull: false)
-  int? endDate;
-  @JsonKey(includeIfNull: false)
-  bool? onlyBaseTimetable;
-  @JsonKey(includeIfNull: false)
-  bool? showBooking;
-  @JsonKey(includeIfNull: false)
-  bool? showInfo;
-  @JsonKey(includeIfNull: false)
-  bool? showSubstText;
-  @JsonKey(includeIfNull: false)
-  bool? showLsText;
-  @JsonKey(includeIfNull: false)
-  bool? showLsNumber;
-  @JsonKey(includeIfNull: false)
-  bool? showStudentgroup;
-  @JsonKey(includeIfNull: false)
-  List<GetTimetableParamsOptionsFields>? klasseFields;
-  @JsonKey(includeIfNull: false)
-  List<GetTimetableParamsOptionsFields>? roomFields;
-  @JsonKey(includeIfNull: false)
-  List<GetTimetableParamsOptionsFields>? subjectFields;
-  @JsonKey(includeIfNull: false)
-  List<GetTimetableParamsOptionsFields>? teacherFields;
-
-  GetTimetableParamsOptions({
-    required this.element,
-    this.startDate,
-    this.endDate,
-    this.onlyBaseTimetable,
-    this.showBooking,
-    this.showInfo,
-    this.showSubstText,
-    this.showLsText,
-    this.showLsNumber,
-    this.showStudentgroup,
-    this.klasseFields,
-    this.roomFields,
-    this.subjectFields,
-    this.teacherFields,
-  });
-
-  factory GetTimetableParamsOptions.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableParamsOptionsFromJson(json);
-  Map<String, dynamic> toJson() => _$GetTimetableParamsOptionsToJson(this);
-}
-
-enum GetTimetableParamsOptionsFields {
-  @JsonValue('id')
-  id,
-  @JsonValue('name')
-  name,
-  @JsonValue('longname')
-  longname,
-  @JsonValue('externalkey')
-  externalkey;
-
-  static List<GetTimetableParamsOptionsFields> all = [
-    id,
-    name,
-    longname,
-    externalkey,
-  ];
-}
-
-@JsonSerializable()
-class GetTimetableParamsOptionsElement {
-  int id;
-  int type;
-  @JsonKey(includeIfNull: false)
-  GetTimetableParamsOptionsElementKeyType? keyType;
-
-  GetTimetableParamsOptionsElement({
-    required this.id,
-    required this.type,
-    this.keyType,
-  });
-  factory GetTimetableParamsOptionsElement.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetTimetableParamsOptionsElementFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableParamsOptionsElementToJson(this);
-}
-
-enum GetTimetableParamsOptionsElementKeyType {
-  @JsonValue('id')
-  id,
-  @JsonValue('name')
-  name,
-  @JsonValue('externalkey')
-  externalkey,
-}

lib/api/webuntis/queries/get_timetable/get_timetable_params.g.dart

@@ -1,106 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_timetable_params.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetTimetableParams _$GetTimetableParamsFromJson(Map<String, dynamic> json) =>
-    GetTimetableParams(
-      options: GetTimetableParamsOptions.fromJson(
-        json['options'] as Map<String, dynamic>,
-      ),
-    );
-
-Map<String, dynamic> _$GetTimetableParamsToJson(GetTimetableParams instance) =>
-    <String, dynamic>{'options': instance.options.toJson()};
-
-GetTimetableParamsOptions _$GetTimetableParamsOptionsFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableParamsOptions(
-  element: GetTimetableParamsOptionsElement.fromJson(
-    json['element'] as Map<String, dynamic>,
-  ),
-  startDate: (json['startDate'] as num?)?.toInt(),
-  endDate: (json['endDate'] as num?)?.toInt(),
-  onlyBaseTimetable: json['onlyBaseTimetable'] as bool?,
-  showBooking: json['showBooking'] as bool?,
-  showInfo: json['showInfo'] as bool?,
-  showSubstText: json['showSubstText'] as bool?,
-  showLsText: json['showLsText'] as bool?,
-  showLsNumber: json['showLsNumber'] as bool?,
-  showStudentgroup: json['showStudentgroup'] as bool?,
-  klasseFields: (json['klasseFields'] as List<dynamic>?)
-      ?.map((e) => $enumDecode(_$GetTimetableParamsOptionsFieldsEnumMap, e))
-      .toList(),
-  roomFields: (json['roomFields'] as List<dynamic>?)
-      ?.map((e) => $enumDecode(_$GetTimetableParamsOptionsFieldsEnumMap, e))
-      .toList(),
-  subjectFields: (json['subjectFields'] as List<dynamic>?)
-      ?.map((e) => $enumDecode(_$GetTimetableParamsOptionsFieldsEnumMap, e))
-      .toList(),
-  teacherFields: (json['teacherFields'] as List<dynamic>?)
-      ?.map((e) => $enumDecode(_$GetTimetableParamsOptionsFieldsEnumMap, e))
-      .toList(),
-);
-
-Map<String, dynamic> _$GetTimetableParamsOptionsToJson(
-  GetTimetableParamsOptions instance,
-) => <String, dynamic>{
-  'element': instance.element.toJson(),
-  'startDate': ?instance.startDate,
-  'endDate': ?instance.endDate,
-  'onlyBaseTimetable': ?instance.onlyBaseTimetable,
-  'showBooking': ?instance.showBooking,
-  'showInfo': ?instance.showInfo,
-  'showSubstText': ?instance.showSubstText,
-  'showLsText': ?instance.showLsText,
-  'showLsNumber': ?instance.showLsNumber,
-  'showStudentgroup': ?instance.showStudentgroup,
-  'klasseFields': ?instance.klasseFields
-      ?.map((e) => _$GetTimetableParamsOptionsFieldsEnumMap[e]!)
-      .toList(),
-  'roomFields': ?instance.roomFields
-      ?.map((e) => _$GetTimetableParamsOptionsFieldsEnumMap[e]!)
-      .toList(),
-  'subjectFields': ?instance.subjectFields
-      ?.map((e) => _$GetTimetableParamsOptionsFieldsEnumMap[e]!)
-      .toList(),
-  'teacherFields': ?instance.teacherFields
-      ?.map((e) => _$GetTimetableParamsOptionsFieldsEnumMap[e]!)
-      .toList(),
-};
-
-const _$GetTimetableParamsOptionsFieldsEnumMap = {
-  GetTimetableParamsOptionsFields.id: 'id',
-  GetTimetableParamsOptionsFields.name: 'name',
-  GetTimetableParamsOptionsFields.longname: 'longname',
-  GetTimetableParamsOptionsFields.externalkey: 'externalkey',
-};
-
-GetTimetableParamsOptionsElement _$GetTimetableParamsOptionsElementFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableParamsOptionsElement(
-  id: (json['id'] as num).toInt(),
-  type: (json['type'] as num).toInt(),
-  keyType: $enumDecodeNullable(
-    _$GetTimetableParamsOptionsElementKeyTypeEnumMap,
-    json['keyType'],
-  ),
-);
-
-Map<String, dynamic> _$GetTimetableParamsOptionsElementToJson(
-  GetTimetableParamsOptionsElement instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'type': instance.type,
-  'keyType':
-      ?_$GetTimetableParamsOptionsElementKeyTypeEnumMap[instance.keyType],
-};
-
-const _$GetTimetableParamsOptionsElementKeyTypeEnumMap = {
-  GetTimetableParamsOptionsElementKeyType.id: 'id',
-  GetTimetableParamsOptionsElementKeyType.name: 'name',
-  GetTimetableParamsOptionsElementKeyType.externalkey: 'externalkey',
-};

lib/api/webuntis/queries/get_timetable/get_timetable_response.dart

@@ -1,171 +0,0 @@
-import 'package:json_annotation/json_annotation.dart';
-
-import '../../../api_response.dart';
-
-part 'get_timetable_response.g.dart';
-
-@JsonSerializable(explicitToJson: true)
-class GetTimetableResponse extends ApiResponse {
-  Set<GetTimetableResponseObject> result;
-
-  GetTimetableResponse(this.result);
-
-  factory GetTimetableResponse.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableResponseFromJson(json);
-  Map<String, dynamic> toJson() => _$GetTimetableResponseToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetTimetableResponseObject {
-  int id;
-  int date;
-  int startTime;
-  int endTime;
-  String? lstype;
-  String? code;
-  String? info;
-  String? substText;
-  String? lstext;
-  int? lsnumber;
-  String? statflags;
-  String? activityType;
-  String? sg;
-  String? bkRemark;
-  String? bkText;
-  List<GetTimetableResponseObjectClass> kl;
-  List<GetTimetableResponseObjectTeacher> te;
-  List<GetTimetableResponseObjectSubject> su;
-  List<GetTimetableResponseObjectRoom> ro;
-
-  GetTimetableResponseObject({
-    required this.id,
-    required this.date,
-    required this.startTime,
-    required this.endTime,
-    this.lstype,
-    this.code,
-    this.info,
-    this.substText,
-    this.lstext,
-    this.lsnumber,
-    this.statflags,
-    this.activityType,
-    this.sg,
-    this.bkRemark,
-    required this.kl,
-    required this.te,
-    required this.su,
-    required this.ro,
-  });
-
-  factory GetTimetableResponseObject.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableResponseObjectFromJson(json);
-  Map<String, dynamic> toJson() => _$GetTimetableResponseObjectToJson(this);
-}
-
-@JsonSerializable(explicitToJson: true)
-class GetTimetableResponseObjectFields {
-  List<GetTimetableResponseObjectFieldsObject>? te;
-
-  GetTimetableResponseObjectFields(this.te);
-
-  factory GetTimetableResponseObjectFields.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetTimetableResponseObjectFieldsFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableResponseObjectFieldsToJson(this);
-}
-
-@JsonSerializable()
-class GetTimetableResponseObjectFieldsObject {
-  int? id;
-  String? name;
-  String? longname;
-  String? externalkey;
-
-  GetTimetableResponseObjectFieldsObject({
-    this.id,
-    this.name,
-    this.longname,
-    this.externalkey,
-  });
-
-  factory GetTimetableResponseObjectFieldsObject.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetTimetableResponseObjectFieldsObjectFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableResponseObjectFieldsObjectToJson(this);
-}
-
-@JsonSerializable()
-class GetTimetableResponseObjectClass {
-  int id;
-  String name;
-  String longname;
-  String? externalkey;
-
-  GetTimetableResponseObjectClass(
-    this.id,
-    this.name,
-    this.longname,
-    this.externalkey,
-  );
-
-  factory GetTimetableResponseObjectClass.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableResponseObjectClassFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableResponseObjectClassToJson(this);
-}
-
-@JsonSerializable()
-class GetTimetableResponseObjectTeacher {
-  int id;
-  String name;
-  String longname;
-  int? orgid;
-  String? orgname;
-  String? externalkey;
-
-  GetTimetableResponseObjectTeacher(
-    this.id,
-    this.name,
-    this.longname,
-    this.orgid,
-    this.orgname,
-    this.externalkey,
-  );
-
-  factory GetTimetableResponseObjectTeacher.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetTimetableResponseObjectTeacherFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableResponseObjectTeacherToJson(this);
-}
-
-@JsonSerializable()
-class GetTimetableResponseObjectSubject {
-  int id;
-  String name;
-  String longname;
-
-  GetTimetableResponseObjectSubject(this.id, this.name, this.longname);
-
-  factory GetTimetableResponseObjectSubject.fromJson(
-    Map<String, dynamic> json,
-  ) => _$GetTimetableResponseObjectSubjectFromJson(json);
-  Map<String, dynamic> toJson() =>
-      _$GetTimetableResponseObjectSubjectToJson(this);
-}
-
-@JsonSerializable()
-class GetTimetableResponseObjectRoom {
-  int id;
-  String name;
-  String longname;
-
-  GetTimetableResponseObjectRoom(this.id, this.name, this.longname);
-
-  factory GetTimetableResponseObjectRoom.fromJson(Map<String, dynamic> json) =>
-      _$GetTimetableResponseObjectRoomFromJson(json);
-  Map<String, dynamic> toJson() => _$GetTimetableResponseObjectRoomToJson(this);
-}

lib/api/webuntis/queries/get_timetable/get_timetable_response.g.dart

@@ -1,205 +0,0 @@
-// GENERATED CODE - DO NOT MODIFY BY HAND
-
-part of 'get_timetable_response.dart';
-
-// **************************************************************************
-// JsonSerializableGenerator
-// **************************************************************************
-
-GetTimetableResponse _$GetTimetableResponseFromJson(
-  Map<String, dynamic> json,
-) =>
-    GetTimetableResponse(
-        (json['result'] as List<dynamic>)
-            .map(
-              (e) => GetTimetableResponseObject.fromJson(
-                e as Map<String, dynamic>,
-              ),
-            )
-            .toSet(),
-      )
-      ..headers = (json['headers'] as Map<String, dynamic>?)?.map(
-        (k, e) => MapEntry(k, e as String),
-      );
-
-Map<String, dynamic> _$GetTimetableResponseToJson(
-  GetTimetableResponse instance,
-) => <String, dynamic>{
-  'headers': ?instance.headers,
-  'result': instance.result.map((e) => e.toJson()).toList(),
-};
-
-GetTimetableResponseObject _$GetTimetableResponseObjectFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObject(
-  id: (json['id'] as num).toInt(),
-  date: (json['date'] as num).toInt(),
-  startTime: (json['startTime'] as num).toInt(),
-  endTime: (json['endTime'] as num).toInt(),
-  lstype: json['lstype'] as String?,
-  code: json['code'] as String?,
-  info: json['info'] as String?,
-  substText: json['substText'] as String?,
-  lstext: json['lstext'] as String?,
-  lsnumber: (json['lsnumber'] as num?)?.toInt(),
-  statflags: json['statflags'] as String?,
-  activityType: json['activityType'] as String?,
-  sg: json['sg'] as String?,
-  bkRemark: json['bkRemark'] as String?,
-  kl: (json['kl'] as List<dynamic>)
-      .map(
-        (e) =>
-            GetTimetableResponseObjectClass.fromJson(e as Map<String, dynamic>),
-      )
-      .toList(),
-  te: (json['te'] as List<dynamic>)
-      .map(
-        (e) => GetTimetableResponseObjectTeacher.fromJson(
-          e as Map<String, dynamic>,
-        ),
-      )
-      .toList(),
-  su: (json['su'] as List<dynamic>)
-      .map(
-        (e) => GetTimetableResponseObjectSubject.fromJson(
-          e as Map<String, dynamic>,
-        ),
-      )
-      .toList(),
-  ro: (json['ro'] as List<dynamic>)
-      .map(
-        (e) =>
-            GetTimetableResponseObjectRoom.fromJson(e as Map<String, dynamic>),
-      )
-      .toList(),
-)..bkText = json['bkText'] as String?;
-
-Map<String, dynamic> _$GetTimetableResponseObjectToJson(
-  GetTimetableResponseObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'date': instance.date,
-  'startTime': instance.startTime,
-  'endTime': instance.endTime,
-  'lstype': instance.lstype,
-  'code': instance.code,
-  'info': instance.info,
-  'substText': instance.substText,
-  'lstext': instance.lstext,
-  'lsnumber': instance.lsnumber,
-  'statflags': instance.statflags,
-  'activityType': instance.activityType,
-  'sg': instance.sg,
-  'bkRemark': instance.bkRemark,
-  'bkText': instance.bkText,
-  'kl': instance.kl.map((e) => e.toJson()).toList(),
-  'te': instance.te.map((e) => e.toJson()).toList(),
-  'su': instance.su.map((e) => e.toJson()).toList(),
-  'ro': instance.ro.map((e) => e.toJson()).toList(),
-};
-
-GetTimetableResponseObjectFields _$GetTimetableResponseObjectFieldsFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObjectFields(
-  (json['te'] as List<dynamic>?)
-      ?.map(
-        (e) => GetTimetableResponseObjectFieldsObject.fromJson(
-          e as Map<String, dynamic>,
-        ),
-      )
-      .toList(),
-);
-
-Map<String, dynamic> _$GetTimetableResponseObjectFieldsToJson(
-  GetTimetableResponseObjectFields instance,
-) => <String, dynamic>{'te': instance.te?.map((e) => e.toJson()).toList()};
-
-GetTimetableResponseObjectFieldsObject
-_$GetTimetableResponseObjectFieldsObjectFromJson(Map<String, dynamic> json) =>
-    GetTimetableResponseObjectFieldsObject(
-      id: (json['id'] as num?)?.toInt(),
-      name: json['name'] as String?,
-      longname: json['longname'] as String?,
-      externalkey: json['externalkey'] as String?,
-    );
-
-Map<String, dynamic> _$GetTimetableResponseObjectFieldsObjectToJson(
-  GetTimetableResponseObjectFieldsObject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longname': instance.longname,
-  'externalkey': instance.externalkey,
-};
-
-GetTimetableResponseObjectClass _$GetTimetableResponseObjectClassFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObjectClass(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longname'] as String,
-  json['externalkey'] as String?,
-);
-
-Map<String, dynamic> _$GetTimetableResponseObjectClassToJson(
-  GetTimetableResponseObjectClass instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longname': instance.longname,
-  'externalkey': instance.externalkey,
-};
-
-GetTimetableResponseObjectTeacher _$GetTimetableResponseObjectTeacherFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObjectTeacher(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longname'] as String,
-  (json['orgid'] as num?)?.toInt(),
-  json['orgname'] as String?,
-  json['externalkey'] as String?,
-);
-
-Map<String, dynamic> _$GetTimetableResponseObjectTeacherToJson(
-  GetTimetableResponseObjectTeacher instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longname': instance.longname,
-  'orgid': instance.orgid,
-  'orgname': instance.orgname,
-  'externalkey': instance.externalkey,
-};
-
-GetTimetableResponseObjectSubject _$GetTimetableResponseObjectSubjectFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObjectSubject(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longname'] as String,
-);
-
-Map<String, dynamic> _$GetTimetableResponseObjectSubjectToJson(
-  GetTimetableResponseObjectSubject instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longname': instance.longname,
-};
-
-GetTimetableResponseObjectRoom _$GetTimetableResponseObjectRoomFromJson(
-  Map<String, dynamic> json,
-) => GetTimetableResponseObjectRoom(
-  (json['id'] as num).toInt(),
-  json['name'] as String,
-  json['longname'] as String,
-);
-
-Map<String, dynamic> _$GetTimetableResponseObjectRoomToJson(
-  GetTimetableResponseObjectRoom instance,
-) => <String, dynamic>{
-  'id': instance.id,
-  'name': instance.name,
-  'longname': instance.longname,
-};

lib/api/webuntis/services/lesson_resolver.dart

@@ -1,75 +0,0 @@
-import 'package:collection/collection.dart';
-import 'package:flutter/material.dart';
-
-import '../../../state/app/modules/timetable/bloc/timetable_state.dart';
-import '../queries/get_rooms/get_rooms_response.dart';
-import '../queries/get_subjects/get_subjects_response.dart';
-
-/// Resolves Webuntis IDs (subject, room) against the cached `TimetableState`.
-/// When a record is missing the resolver returns a placeholder fallback
-/// instead of `null` so call sites stay branch-free.
-class LessonResolver {
-  static GetSubjectsResponseObject resolveSubject(
-    TimetableState state,
-    int? id,
-  ) {
-    final fallback = GetSubjectsResponseObject(0, '?', 'Unbekannt', '?', true);
-    if (id == null) return fallback;
-    return state.subjects?.result.firstWhereOrNull((s) => s.id == id) ??
-        fallback;
-  }
-
-  static GetRoomsResponseObject resolveRoom(TimetableState state, int? id) {
-    final fallback = GetRoomsResponseObject(0, '?', 'Unbekannt', true, '');
-    if (id == null) return fallback;
-    return state.rooms?.result.firstWhereOrNull((r) => r.id == id) ?? fallback;
-  }
-}
-
-/// Pure formatting/labelling helpers for Webuntis lessons (status code →
-/// icon/label, "Name (Longname) · Extra" lines, subject prefix). No widgets,
-/// safe to unit-test.
-class LessonFormatter {
-  static IconData iconForCode(String? code) {
-    switch (code) {
-      case 'cancelled':
-        return Icons.event_busy_outlined;
-      case 'irregular':
-        return Icons.swap_horiz;
-      default:
-        return Icons.school_outlined;
-    }
-  }
-
-  static String statusLabel(String? code) {
-    switch (code) {
-      case null:
-      case '':
-        return 'Regulär';
-      case 'cancelled':
-        return 'Entfällt';
-      case 'irregular':
-        return 'Geändert';
-      default:
-        return code;
-    }
-  }
-
-  static String codePrefix(String? code) {
-    if (code == 'cancelled') return 'Entfällt: ';
-    if (code == 'irregular') return 'Änderung: ';
-    return code ?? '';
-  }
-
-  /// Builds a single display line from the typical Webuntis triple of name,
-  /// optional longname (rendered in parentheses if it differs from `name`),
-  /// and optional extra info (joined with `·`).
-  static String formatLine(String name, {String? longname, String? extra}) {
-    final parts = <String>[if (name.isNotEmpty) name else '?'];
-    final ln = (longname ?? '').trim();
-    if (ln.isNotEmpty && ln != name) parts.add('($ln)');
-    final ex = (extra ?? '').trim();
-    if (ex.isNotEmpty) parts.add('· $ex');
-    return parts.join(' ');
-  }
-}

lib/api/webuntis/webuntis_api.dart

@@ -1,99 +0,0 @@
-import 'dart:async';
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:http/http.dart' as http;
-
-import '../../model/endpoint_data.dart';
-import '../api_params.dart';
-import '../api_request.dart';
-import '../api_response.dart';
-import '../errors/network_exception.dart';
-import '../errors/parse_exception.dart';
-import 'queries/authenticate/authenticate.dart';
-import 'webuntis_error.dart';
-
-abstract class WebuntisApi extends ApiRequest {
-  Uri endpoint = Uri.parse(
-    'https://${EndpointData().webuntis().full()}/WebUntis/jsonrpc.do?school=marianum-fulda',
-  );
-  String method;
-  ApiParams? genericParam;
-  http.Response? response;
-
-  bool authenticatedResponse;
-
-  WebuntisApi(
-    this.method,
-    this.genericParam, {
-    this.authenticatedResponse = true,
-  });
-
-  Future<String> query(WebuntisApi untis, {bool retry = false}) async {
-    final body =
-        '{"id":"ID","method":"$method","params":${untis._body()},"jsonrpc":"2.0"}';
-
-    var sessionId = '0';
-    if (authenticatedResponse) {
-      sessionId = (await Authenticate.getSession()).sessionId;
-    }
-    final data = await post(body, {'Cookie': 'JSESSIONID=$sessionId'});
-    response = data;
-
-    final Map<String, dynamic> jsonData;
-    try {
-      jsonData = jsonDecode(data.body) as Map<String, dynamic>;
-    } on FormatException catch (e) {
-      throw ParseException(
-        technicalDetails: 'WebUntis JSON decode: ${e.message}',
-      );
-    }
-    final error = jsonData['error'] as Map<String, dynamic>?;
-    if (error != null) {
-      final code = error['code'] as int;
-      if (code == -8520) {
-        if (retry) {
-          throw WebuntisError(
-            'Authentication was tried (probably session timeout), but was not successful!',
-            -8520,
-          );
-        }
-        await Authenticate.createSession();
-        return query(untis, retry: true);
-      } else {
-        throw WebuntisError(error['message'] as String, code);
-      }
-    }
-    return data.body;
-  }
-
-  T finalize<T extends ApiResponse>(T response) {
-    response.rawResponse = this.response!;
-    return response;
-  }
-
-  Future<ApiResponse> run();
-
-  String _body() => genericParam == null ? '{}' : jsonEncode(genericParam);
-
-  Future<http.Response> post(String data, Map<String, String>? headers) async {
-    try {
-      return await http
-          .post(endpoint, body: data, headers: headers)
-          .timeout(
-            const Duration(seconds: 10),
-            onTimeout: () => throw NetworkException.timeout(
-              technicalDetails: 'WebUntis $method timed out after 10s',
-            ),
-          );
-    } on SocketException catch (e) {
-      throw NetworkException(
-        technicalDetails: 'WebUntis $method: ${e.message}',
-      );
-    } on http.ClientException catch (e) {
-      throw NetworkException(
-        technicalDetails: 'WebUntis $method: ${e.message}',
-      );
-    }
-  }
-}

lib/api/webuntis/webuntis_error.dart

@@ -1,9 +0,0 @@
-class WebuntisError implements Exception {
-  String message;
-  int code;
-
-  WebuntisError(this.message, this.code);
-
-  @override
-  String toString() => 'WebUntis ($code): $message';
-}

lib/background/widget_background_task.dart

@@ -2,31 +2,30 @@ import 'dart:async';
 import 'dart:developer';
 
 import 'package:flutter/widgets.dart';
-import 'package:intl/intl.dart';
 import 'package:workmanager/workmanager.dart';
 
+import '../api/marianumconnect/marianumconnect_endpoint.dart';
+import '../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays.dart';
+import '../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart';
+import '../api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms.dart';
+import '../api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.dart';
+import '../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects.dart';
+import '../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.dart';
+import '../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid.dart';
+import '../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.dart';
+import '../api/marianumconnect/queries/timetable_get_week/timetable_get_week.dart';
 import '../api/mhsl/custom_timetable_event/get/get_custom_timetable_event.dart';
 import '../api/mhsl/custom_timetable_event/get/get_custom_timetable_event_params.dart';
 import '../api/mhsl/custom_timetable_event/get/get_custom_timetable_event_response.dart';
-import '../api/webuntis/queries/authenticate/authenticate.dart';
-import '../api/webuntis/queries/get_holidays/get_holidays.dart';
-import '../api/webuntis/queries/get_holidays/get_holidays_response.dart';
-import '../api/webuntis/queries/get_rooms/get_rooms.dart';
-import '../api/webuntis/queries/get_rooms/get_rooms_response.dart';
-import '../api/webuntis/queries/get_subjects/get_subjects.dart';
-import '../api/webuntis/queries/get_subjects/get_subjects_response.dart';
-import '../api/webuntis/queries/get_timegrid_units/get_timegrid_units.dart';
-import '../api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart';
-import '../api/webuntis/queries/get_timetable/get_timetable.dart';
-import '../api/webuntis/queries/get_timetable/get_timetable_params.dart';
 import '../model/account_data.dart';
 import '../widget_data/widget_data_mapper.dart';
 import '../widget_data/widget_publisher.dart';
 import '../widget_data/widget_sync.dart';
 
-/// Periodic widget refresh in a background Dart isolate. Native HTTP would
-/// mean reimplementing WebUntis JSON-RPC (auth, session-timeout retry -8520,
-/// payload quirks) twice — Dart isolate keeps that logic in one place.
+/// Periodic widget refresh in a background Dart isolate. The Marianum-Connect
+/// dio singleton + bearer interceptor handle login/refresh transparently —
+/// we only need to pin the endpoint to whatever the user picked in the
+/// in-app settings before issuing calls.
 class WidgetBackgroundTask {
   static const String periodicTaskName = 'eu.mhsl.marianum.widget.refresh';
   static const String oneOffTaskName = 'eu.mhsl.marianum.widget.refresh.once';
@@ -85,43 +84,39 @@ void _callbackDispatcher() {
 
 Future<void> _refresh() async {
   await WidgetSync.ensureInitialized();
-  await Authenticate.createSession();
+  // The background isolate doesn't go through main.dart's BlocBuilder, so we
+  // re-apply the endpoint the foreground last persisted. Without this the
+  // dio singleton would fall back to its hardcoded live default even when
+  // the user picked beta/custom in the in-app settings.
+  final mcBaseUrl = await WidgetSync.getMarianumConnectBaseUrl();
+  if (mcBaseUrl != null && mcBaseUrl.isNotEmpty) {
+    MarianumConnectEndpoint.update(mcBaseUrl);
+  }
 
   final now = WidgetPublisher.widgetNow();
-  final dateFormat = DateFormat('yyyyMMdd');
   // 14-day window so the week-widget rolls forward into next Monday's
   // lessons on Friday evening.
   final weekStart = _startOfWeek(now);
   final weekEndExclusive = weekStart.add(const Duration(days: 14));
-  final session = await Authenticate.getSession();
 
-  final timetable = await GetTimetable(
-    GetTimetableParams(
-      options: GetTimetableParamsOptions(
-        element: GetTimetableParamsOptionsElement(
-          id: session.personId,
-          type: session.personType,
-          keyType: GetTimetableParamsOptionsElementKeyType.id,
-        ),
-        startDate: int.parse(dateFormat.format(weekStart)),
-        endDate: int.parse(
-          dateFormat.format(weekEndExclusive.subtract(const Duration(days: 1))),
-        ),
-        teacherFields: GetTimetableParamsOptionsFields.all,
-        subjectFields: GetTimetableParamsOptionsFields.all,
-        roomFields: GetTimetableParamsOptionsFields.all,
-        klasseFields: GetTimetableParamsOptionsFields.all,
-      ),
-    ),
-  ).run();
+  final timetable = await TimetableGetWeek().run(
+    from: weekStart,
+    until: weekEndExclusive.subtract(const Duration(days: 1)),
+  );
 
   // Reference data — failures fall through to null in the mapper rather
   // than aborting the whole refresh.
-  final subjects = await _runOrNull<GetSubjectsResponse>(() => GetSubjects().run());
-  final rooms = await _runOrNull<GetRoomsResponse>(() => GetRooms().run());
-  final holidays = await _runOrNull<GetHolidaysResponse>(() => GetHolidays().run());
-  final timegrid = await _runOrNull<GetTimegridUnitsResponse>(
-    () => GetTimegridUnits().run(),
+  final subjects = await _runOrNull<TimetableGetSubjectsResponse>(
+    () => TimetableGetSubjects().run(),
+  );
+  final rooms = await _runOrNull<TimetableGetRoomsResponse>(
+    () => TimetableGetRooms().run(),
+  );
+  final holidays = await _runOrNull<TimetableGetHolidaysResponse>(
+    () => TimetableGetHolidays().run(),
+  );
+  final timegrid = await _runOrNull<TimetableGetTimegridResponse>(
+    () => TimetableGetTimegrid().run(),
   );
   final customEvents = await _runOrNull<GetCustomTimetableEventResponse>(
     () => GetCustomTimetableEvent(
@@ -129,7 +124,7 @@ Future<void> _refresh() async {
     ).run(),
   );
 
-  final lessons = timetable.result;
+  final lessons = timetable.entries;
 
   final connectDouble = await WidgetSync.getConnectDoubleLessons();
   final dayData = WidgetDataMapper.buildDayData(

lib/main.dart

@@ -18,6 +18,8 @@ import 'package:persistent_bottom_nav_bar_v2/persistent_bottom_nav_bar_v2.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
 import 'api/marianumcloud/webdav/queries/list_files/list_files_cache.dart';
+import 'api/marianumconnect/auth/session_validator.dart';
+import 'api/marianumconnect/marianumconnect_endpoint.dart';
 import 'api/mhsl/breaker/get_breakers/get_breakers_response.dart';
 import 'app.dart';
 import 'background/widget_background_task.dart';
@@ -183,18 +185,44 @@ class _MainState extends State<Main> {
 
     AccountData().waitForPopulation().then((value) {
       if (!mounted) return;
-      context.read<AccountBloc>().setStatus(
+      final accountBloc = context.read<AccountBloc>();
+      accountBloc.setStatus(
         value ? AccountStatus.loggedIn : AccountStatus.loggedOut,
       );
+      if (value) _scheduleSessionValidation(accountBloc);
     });
   }
 
+  /// Fires a background credential check against Marianum Connect — runs in
+  /// the background so it never blocks the cold-start path. A 401 means the
+  /// password has been rotated server-side; the validator wipes the local
+  /// session and we flip the account bloc back to `loggedOut`, which sends
+  /// the user to the login screen.
+  void _scheduleSessionValidation(AccountBloc accountBloc) {
+    unawaited(
+      SessionValidator.probeStored(
+        onInvalidated: () async {
+          if (!mounted) return;
+          accountBloc.setStatus(AccountStatus.loggedOut);
+        },
+      ),
+    );
+  }
+
   @override
   Widget build(BuildContext context) => Directionality(
     textDirection: TextDirection.ltr,
     child: BlocBuilder<SettingsCubit, Settings>(
       builder: (context, settings) {
         final devToolsSettings = settings.devToolsSettings;
+        // Keep the MC dio singleton aligned with the currently selected
+        // endpoint (live / beta / custom). Idempotent when the URL is
+        // unchanged so it's safe to call on every rebuild. Mirrored into
+        // WidgetSync so the background isolate refreshes against the same
+        // endpoint.
+        final mcBaseUrl = devToolsSettings.resolveMarianumConnectBaseUrl();
+        MarianumConnectEndpoint.update(mcBaseUrl);
+        unawaited(WidgetSync.setMarianumConnectBaseUrl(mcBaseUrl));
         return MaterialApp(
           showPerformanceOverlay: devToolsSettings.showPerformanceOverlay,
           checkerboardOffscreenLayers:

lib/model/endpoint_data.dart

@@ -37,14 +37,6 @@ class EndpointData {
         : EndpointMode.live;
   }
 
-  Endpoint webuntis() => EndpointOptions(
-    live: Endpoint(domain: 'marianum-fulda.webuntis.com'),
-    staged: Endpoint(
-      domain: 'mhsl.eu',
-      path: '/marianum/marianummobile/webuntis/public/index.php/api',
-    ),
-  ).get(getEndpointMode());
-
   Endpoint nextcloud() => EndpointOptions(
     live: Endpoint(domain: 'cloud.marianum-fulda.de'),
     staged: Endpoint(domain: 'mhsl.eu', path: '/marianum/marianummobile/cloud'),

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

@@ -2,9 +2,8 @@ import 'dart:developer';
 
 import 'package:intl/intl.dart';
 
+import '../../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../../../../../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
-import '../../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
-import '../../../../../api/webuntis/webuntis_error.dart';
 import '../../../../../extensions/date_time.dart';
 import '../../../infrastructure/utility_widgets/loadable_hydrated_bloc/loadable_hydrated_bloc.dart';
 import '../../../infrastructure/utility_widgets/loadable_hydrated_bloc/loadable_hydrated_bloc_event.dart';
@@ -46,12 +45,8 @@ class TimetableBloc
   }
 
   /// Persisted state may carry a stale `startDate`/`endDate` from the user's
-  /// last view as well as `accessibleStartDate`/`accessibleEndDate` learned
-  /// from `-7004 no allowed date` errors during scroll. Both must reset on
-  /// every cold start: otherwise the calendar can mount on a months-old week
-  /// (e.g. last December's Christmas holidays) or get permanently clamped
-  /// inside a window Webuntis once refused — even though the server would
-  /// happily serve the user's current week now.
+  /// last view. Reset on every cold start so the calendar always mounts on
+  /// the current week, not on whatever week the user closed the app on.
   @override
   TimetableState fromStorage(Map<String, dynamic> json) {
     final stored = TimetableState.fromJson(json);
@@ -142,55 +137,12 @@ class TimetableBloc
       );
       if (_lastWeekRequestStart.isAfter(requestStart)) return;
       _writeWeekToCache(startDate, week);
-    } on WebuntisError catch (e) {
-      if (e.code == _outOfRangeErrorCode) {
-        _narrowAccessibleRange(startDate, endDate);
-        // Out-of-range is expected when the user scrolls into territory
-        // Webuntis doesn't grant access to — surface to UI as a normal
-        // empty week instead of letting the loadable state escalate it
-        // into a red error screen.
-        return;
-      }
-      log(
-        'Webuntis getWeek error: code=${e.code} message="${e.message}" '
-        'for $startDate–$endDate',
-      );
-      onError?.call(e);
     } catch (e) {
+      log('getWeek error for $startDate–$endDate: $e');
       onError?.call(e);
     }
   }
 
-  /// Webuntis returns this for weeks the user has no access to (typically
-  /// before the active enrolment / after a teacher's planning window).
-  static const int _outOfRangeErrorCode = -7004;
-
-  /// Pulls the calendar's permitted scroll range inward based on a denied
-  /// week. We don't know the exact cutoff — only that *this* week is out
-  /// of reach — so we always pick the tighter of the existing bound and
-  /// the newly discovered one. Pre-now denials shrink the lower bound,
-  /// post-now denials the upper.
-  void _narrowAccessibleRange(DateTime startDate, DateTime endDate) {
-    final now = DateTime.now();
-    final isPast = endDate.isBefore(now);
-    add(
-      Emit((s) {
-        if (isPast) {
-          final candidate = endDate.addDays(1);
-          final current = s.accessibleStartDate;
-          if (current != null && !candidate.isAfter(current)) return s;
-          return s.copyWith(accessibleStartDate: candidate);
-        }
-        // Treat anything not strictly past as a forward-direction denial,
-        // including the rare case where startDate == now.
-        final candidate = startDate.subtractDays(1);
-        final current = s.accessibleEndDate;
-        if (current != null && !candidate.isBefore(current)) return s;
-        return s.copyWith(accessibleEndDate: candidate);
-      }),
-    );
-  }
-
   Future<void> _loadStaticReferenceData({
     void Function(Object)? onError,
     bool renew = false,
@@ -271,11 +223,11 @@ class TimetableBloc
         .catchError((_) {});
   }
 
-  void _writeWeekToCache(DateTime weekStart, GetTimetableResponse week) {
+  void _writeWeekToCache(DateTime weekStart, TimetableGetWeekResponse week) {
     final key = _weekKeyFormat.format(weekStart);
     add(
       Emit((s) {
-        final updated = Map<String, GetTimetableResponse>.of(s.weekCache);
+        final updated = Map<String, TimetableGetWeekResponse>.of(s.weekCache);
         updated[key] = week;
         return s.copyWith(weekCache: updated, dataVersion: s.dataVersion + 1);
       }),

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

@@ -1,12 +1,12 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 
+import '../../../../../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../../../../../api/mhsl/custom_timetable_event/get/get_custom_timetable_event_response.dart';
-import '../../../../../api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_response.dart';
-import '../../../../../api/webuntis/queries/get_holidays/get_holidays_response.dart';
-import '../../../../../api/webuntis/queries/get_rooms/get_rooms_response.dart';
-import '../../../../../api/webuntis/queries/get_subjects/get_subjects_response.dart';
-import '../../../../../api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart';
-import '../../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
 
 part 'timetable_state.freezed.dart';
 part 'timetable_state.g.dart';
@@ -16,18 +16,18 @@ abstract class TimetableState with _$TimetableState {
   const TimetableState._();
 
   const factory TimetableState({
-    @Default(<String, GetTimetableResponse>{})
-    Map<String, GetTimetableResponse> weekCache,
-    GetRoomsResponse? rooms,
-    GetSubjectsResponse? subjects,
-    GetHolidaysResponse? schoolHolidays,
-    GetCurrentSchoolyearResponse? schoolyear,
-    GetTimegridUnitsResponse? timegrid,
+    @Default(<String, TimetableGetWeekResponse>{})
+    Map<String, TimetableGetWeekResponse> weekCache,
+    TimetableGetRoomsResponse? rooms,
+    TimetableGetSubjectsResponse? subjects,
+    TimetableGetHolidaysResponse? schoolHolidays,
+    TimetableGetSchoolyearResponse? schoolyear,
+    TimetableGetTimegridResponse? timegrid,
     GetCustomTimetableEventResponse? customEvents,
     required DateTime startDate,
     required DateTime endDate,
     @Default(0) int dataVersion,
-    // Boundaries learned from `-7004 no allowed date` errors during scroll.
+    // Boundaries learned from past server denials of inaccessible weeks.
     // Inclusive: weeks whose start is on/before `accessibleEndDate` and
     // whose end is on/after `accessibleStartDate` are within the user's
     // permitted range. Null = no upper / lower bound discovered yet.
@@ -38,8 +38,8 @@ abstract class TimetableState with _$TimetableState {
   factory TimetableState.fromJson(Map<String, Object?> json) =>
       _$TimetableStateFromJson(json);
 
-  Iterable<GetTimetableResponseObject> getAllKnownLessons() =>
-      weekCache.values.expand((response) => response.result);
+  Iterable<McTimetableEntry> getAllKnownLessons() =>
+      weekCache.values.expand((response) => response.entries);
 
   bool get hasReferenceData =>
       rooms != null &&

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; GetCurrentSchoolyearResponse? get schoolyear; GetTimegridUnitsResponse? get timegrid; GetCustomTimetableEventResponse? get customEvents; DateTime get startDate; DateTime get endDate; int get dataVersion;// Boundaries learned from `-7004 no allowed date` errors during scroll.
+ Map<String, TimetableGetWeekResponse> get weekCache; TimetableGetRoomsResponse? get rooms; TimetableGetSubjectsResponse? get subjects; TimetableGetHolidaysResponse? get schoolHolidays; TimetableGetSchoolyearResponse? get schoolyear; TimetableGetTimegridResponse? get timegrid; GetCustomTimetableEventResponse? get customEvents; DateTime get startDate; DateTime get endDate; int get dataVersion;// Boundaries learned from past server denials of inaccessible weeks.
 // Inclusive: weeks whose start is on/before `accessibleEndDate` and
 // whose end is on/after `accessibleStartDate` are within the user's
 // permitted range. Null = no upper / lower bound discovered yet.
@@ -52,7 +52,7 @@ 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, GetCurrentSchoolyearResponse? schoolyear, GetTimegridUnitsResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion, DateTime? accessibleStartDate, DateTime? accessibleEndDate
+ Map<String, TimetableGetWeekResponse> weekCache, TimetableGetRoomsResponse? rooms, TimetableGetSubjectsResponse? subjects, TimetableGetHolidaysResponse? schoolHolidays, TimetableGetSchoolyearResponse? schoolyear, TimetableGetTimegridResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion, DateTime? accessibleStartDate, DateTime? accessibleEndDate
 });
 
 
@@ -72,12 +72,12 @@ class _$TimetableStateCopyWithImpl<$Res>
 @pragma('vm:prefer-inline') @override $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? schoolyear = freezed,Object? timegrid = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,Object? accessibleStartDate = freezed,Object? accessibleEndDate = freezed,}) {
   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?,schoolyear: freezed == schoolyear ? _self.schoolyear : schoolyear // ignore: cast_nullable_to_non_nullable
-as GetCurrentSchoolyearResponse?,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 Map<String, TimetableGetWeekResponse>,rooms: freezed == rooms ? _self.rooms : rooms // ignore: cast_nullable_to_non_nullable
+as TimetableGetRoomsResponse?,subjects: freezed == subjects ? _self.subjects : subjects // ignore: cast_nullable_to_non_nullable
+as TimetableGetSubjectsResponse?,schoolHolidays: freezed == schoolHolidays ? _self.schoolHolidays : schoolHolidays // ignore: cast_nullable_to_non_nullable
+as TimetableGetHolidaysResponse?,schoolyear: freezed == schoolyear ? _self.schoolyear : schoolyear // ignore: cast_nullable_to_non_nullable
+as TimetableGetSchoolyearResponse?,timegrid: freezed == timegrid ? _self.timegrid : timegrid // ignore: cast_nullable_to_non_nullable
+as TimetableGetTimegridResponse?,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
@@ -168,7 +168,7 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( Map<String, GetTimetableResponse> weekCache,  GetRoomsResponse? rooms,  GetSubjectsResponse? subjects,  GetHolidaysResponse? schoolHolidays,  GetCurrentSchoolyearResponse? schoolyear,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( Map<String, TimetableGetWeekResponse> weekCache,  TimetableGetRoomsResponse? rooms,  TimetableGetSubjectsResponse? subjects,  TimetableGetHolidaysResponse? schoolHolidays,  TimetableGetSchoolyearResponse? schoolyear,  TimetableGetTimegridResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)?  $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.schoolyear,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion,_that.accessibleStartDate,_that.accessibleEndDate);case _:
@@ -189,7 +189,7 @@ 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,  GetCurrentSchoolyearResponse? schoolyear,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( Map<String, TimetableGetWeekResponse> weekCache,  TimetableGetRoomsResponse? rooms,  TimetableGetSubjectsResponse? subjects,  TimetableGetHolidaysResponse? schoolHolidays,  TimetableGetSchoolyearResponse? schoolyear,  TimetableGetTimegridResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)  $default,) {final _that = this;
 switch (_that) {
 case _TimetableState():
 return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.schoolyear,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion,_that.accessibleStartDate,_that.accessibleEndDate);case _:
@@ -209,7 +209,7 @@ 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,  GetCurrentSchoolyearResponse? schoolyear,  GetTimegridUnitsResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( Map<String, TimetableGetWeekResponse> weekCache,  TimetableGetRoomsResponse? rooms,  TimetableGetSubjectsResponse? subjects,  TimetableGetHolidaysResponse? schoolHolidays,  TimetableGetSchoolyearResponse? schoolyear,  TimetableGetTimegridResponse? timegrid,  GetCustomTimetableEventResponse? customEvents,  DateTime startDate,  DateTime endDate,  int dataVersion,  DateTime? accessibleStartDate,  DateTime? accessibleEndDate)?  $default,) {final _that = this;
 switch (_that) {
 case _TimetableState() when $default != null:
 return $default(_that.weekCache,_that.rooms,_that.subjects,_that.schoolHolidays,_that.schoolyear,_that.timegrid,_that.customEvents,_that.startDate,_that.endDate,_that.dataVersion,_that.accessibleStartDate,_that.accessibleEndDate);case _:
@@ -224,26 +224,26 @@ 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.schoolyear, this.timegrid, this.customEvents, required this.startDate, required this.endDate, this.dataVersion = 0, this.accessibleStartDate, this.accessibleEndDate}): _weekCache = weekCache,super._();
+  const _TimetableState({final  Map<String, TimetableGetWeekResponse> weekCache = const <String, TimetableGetWeekResponse>{}, this.rooms, this.subjects, this.schoolHolidays, this.schoolyear, this.timegrid, this.customEvents, required this.startDate, required this.endDate, this.dataVersion = 0, this.accessibleStartDate, this.accessibleEndDate}): _weekCache = weekCache,super._();
   factory _TimetableState.fromJson(Map<String, dynamic> json) => _$TimetableStateFromJson(json);
 
- final  Map<String, GetTimetableResponse> _weekCache;
-@override@JsonKey() Map<String, GetTimetableResponse> get weekCache {
+ final  Map<String, TimetableGetWeekResponse> _weekCache;
+@override@JsonKey() Map<String, TimetableGetWeekResponse> get weekCache {
   if (_weekCache is EqualUnmodifiableMapView) return _weekCache;
   // ignore: implicit_dynamic_type
   return EqualUnmodifiableMapView(_weekCache);
 }
 
-@override final  GetRoomsResponse? rooms;
-@override final  GetSubjectsResponse? subjects;
-@override final  GetHolidaysResponse? schoolHolidays;
-@override final  GetCurrentSchoolyearResponse? schoolyear;
-@override final  GetTimegridUnitsResponse? timegrid;
+@override final  TimetableGetRoomsResponse? rooms;
+@override final  TimetableGetSubjectsResponse? subjects;
+@override final  TimetableGetHolidaysResponse? schoolHolidays;
+@override final  TimetableGetSchoolyearResponse? schoolyear;
+@override final  TimetableGetTimegridResponse? timegrid;
 @override final  GetCustomTimetableEventResponse? customEvents;
 @override final  DateTime startDate;
 @override final  DateTime endDate;
 @override@JsonKey() final  int dataVersion;
-// Boundaries learned from `-7004 no allowed date` errors during scroll.
+// Boundaries learned from past server denials of inaccessible weeks.
 // Inclusive: weeks whose start is on/before `accessibleEndDate` and
 // whose end is on/after `accessibleStartDate` are within the user's
 // permitted range. Null = no upper / lower bound discovered yet.
@@ -283,7 +283,7 @@ 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, GetCurrentSchoolyearResponse? schoolyear, GetTimegridUnitsResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion, DateTime? accessibleStartDate, DateTime? accessibleEndDate
+ Map<String, TimetableGetWeekResponse> weekCache, TimetableGetRoomsResponse? rooms, TimetableGetSubjectsResponse? subjects, TimetableGetHolidaysResponse? schoolHolidays, TimetableGetSchoolyearResponse? schoolyear, TimetableGetTimegridResponse? timegrid, GetCustomTimetableEventResponse? customEvents, DateTime startDate, DateTime endDate, int dataVersion, DateTime? accessibleStartDate, DateTime? accessibleEndDate
 });
 
 
@@ -303,12 +303,12 @@ class __$TimetableStateCopyWithImpl<$Res>
 @override @pragma('vm:prefer-inline') $Res call({Object? weekCache = null,Object? rooms = freezed,Object? subjects = freezed,Object? schoolHolidays = freezed,Object? schoolyear = freezed,Object? timegrid = freezed,Object? customEvents = freezed,Object? startDate = null,Object? endDate = null,Object? dataVersion = null,Object? accessibleStartDate = freezed,Object? accessibleEndDate = freezed,}) {
   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?,schoolyear: freezed == schoolyear ? _self.schoolyear : schoolyear // ignore: cast_nullable_to_non_nullable
-as GetCurrentSchoolyearResponse?,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 Map<String, TimetableGetWeekResponse>,rooms: freezed == rooms ? _self.rooms : rooms // ignore: cast_nullable_to_non_nullable
+as TimetableGetRoomsResponse?,subjects: freezed == subjects ? _self.subjects : subjects // ignore: cast_nullable_to_non_nullable
+as TimetableGetSubjectsResponse?,schoolHolidays: freezed == schoolHolidays ? _self.schoolHolidays : schoolHolidays // ignore: cast_nullable_to_non_nullable
+as TimetableGetHolidaysResponse?,schoolyear: freezed == schoolyear ? _self.schoolyear : schoolyear // ignore: cast_nullable_to_non_nullable
+as TimetableGetSchoolyearResponse?,timegrid: freezed == timegrid ? _self.timegrid : timegrid // ignore: cast_nullable_to_non_nullable
+as TimetableGetTimegridResponse?,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

@@ -12,31 +12,33 @@ _TimetableState _$TimetableStateFromJson(Map<String, dynamic> json) =>
           (json['weekCache'] as Map<String, dynamic>?)?.map(
             (k, e) => MapEntry(
               k,
-              GetTimetableResponse.fromJson(e as Map<String, dynamic>),
+              TimetableGetWeekResponse.fromJson(e as Map<String, dynamic>),
             ),
           ) ??
-          const <String, GetTimetableResponse>{},
+          const <String, TimetableGetWeekResponse>{},
       rooms: json['rooms'] == null
           ? null
-          : GetRoomsResponse.fromJson(json['rooms'] as Map<String, dynamic>),
+          : TimetableGetRoomsResponse.fromJson(
+              json['rooms'] as Map<String, dynamic>,
+            ),
       subjects: json['subjects'] == null
           ? null
-          : GetSubjectsResponse.fromJson(
+          : TimetableGetSubjectsResponse.fromJson(
               json['subjects'] as Map<String, dynamic>,
             ),
       schoolHolidays: json['schoolHolidays'] == null
           ? null
-          : GetHolidaysResponse.fromJson(
+          : TimetableGetHolidaysResponse.fromJson(
               json['schoolHolidays'] as Map<String, dynamic>,
             ),
       schoolyear: json['schoolyear'] == null
           ? null
-          : GetCurrentSchoolyearResponse.fromJson(
+          : TimetableGetSchoolyearResponse.fromJson(
               json['schoolyear'] as Map<String, dynamic>,
             ),
       timegrid: json['timegrid'] == null
           ? null
-          : GetTimegridUnitsResponse.fromJson(
+          : TimetableGetTimegridResponse.fromJson(
               json['timegrid'] as Map<String, dynamic>,
             ),
       customEvents: json['customEvents'] == null

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

@@ -1,5 +1,15 @@
-import 'package:intl/intl.dart';
-
+import '../../../../../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_rooms/timetable_get_rooms_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_schoolyear/timetable_get_schoolyear_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week.dart';
+import '../../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../../../../../api/mhsl/custom_timetable_event/add/add_custom_timetable_event.dart';
 import '../../../../../api/mhsl/custom_timetable_event/add/add_custom_timetable_event_params.dart';
 import '../../../../../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
@@ -11,89 +21,77 @@ import '../../../../../api/mhsl/custom_timetable_event/remove/remove_custom_time
 import '../../../../../api/mhsl/custom_timetable_event/update/update_custom_timetable_event.dart';
 import '../../../../../api/mhsl/custom_timetable_event/update/update_custom_timetable_event_params.dart';
 import '../../../../../api/request_cache.dart';
-import '../../../../../api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_cache.dart';
-import '../../../../../api/webuntis/queries/get_current_schoolyear/get_current_schoolyear_response.dart';
-import '../../../../../api/webuntis/queries/get_holidays/get_holidays_cache.dart';
-import '../../../../../api/webuntis/queries/get_holidays/get_holidays_response.dart';
-import '../../../../../api/webuntis/queries/get_rooms/get_rooms_cache.dart';
-import '../../../../../api/webuntis/queries/get_rooms/get_rooms_response.dart';
-import '../../../../../api/webuntis/queries/get_subjects/get_subjects_cache.dart';
-import '../../../../../api/webuntis/queries/get_subjects/get_subjects_response.dart';
-import '../../../../../api/webuntis/queries/get_timegrid_units/get_timegrid_units_cache.dart';
-import '../../../../../api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart';
-import '../../../../../api/webuntis/queries/get_timetable/get_timetable_cache.dart';
-import '../../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
 import '../../../../../model/account_data.dart';
 
+/// Pulls the timetable from the Marianum-Connect mobile API. Each MC endpoint
+/// is its own HTTP call; this provider just exposes the lazy futures so the
+/// bloc can chain them without seeing the dio layer. Custom events still come
+/// from the MHSL backend and are unchanged.
 class TimetableDataProvider {
-  static final DateFormat _dateFormat = DateFormat('yyyyMMdd');
-
-  Future<GetTimetableResponse> getWeek(
+  Future<TimetableGetWeekResponse> getWeek(
     DateTime startDate,
     DateTime endDate, {
     void Function(Object)? onError,
     bool renew = false,
-  }) => resolveFromCache<GetTimetableResponse>(
-    (onUpdate, onError) => GetTimetableCache(
-      startdate: int.parse(_dateFormat.format(startDate)),
-      enddate: int.parse(_dateFormat.format(endDate)),
-      renew: renew,
-      onUpdate: onUpdate,
-      onError: onError,
-    ),
-    onError: onError,
-    operationName: 'getWeek',
-  );
+  }) async {
+    try {
+      return await TimetableGetWeek().run(from: startDate, until: endDate);
+    } catch (e) {
+      onError?.call(e);
+      rethrow;
+    }
+  }
 
-  Future<GetRoomsResponse> getRooms({
+  Future<TimetableGetRoomsResponse> getRooms({
     void Function(Object)? onError,
     bool renew = false,
-  }) => resolveFromCache<GetRoomsResponse>(
-    (onUpdate, onError) =>
-        GetRoomsCache(renew: renew, onUpdate: onUpdate, onError: onError),
-    onError: onError,
-    operationName: 'getRooms',
-  );
+  }) async {
+    try {
+      return await TimetableGetRooms().run();
+    } catch (e) {
+      onError?.call(e);
+      rethrow;
+    }
+  }
 
-  Future<GetSubjectsResponse> getSubjects({
+  Future<TimetableGetSubjectsResponse> getSubjects({
     void Function(Object)? onError,
     bool renew = false,
-  }) => resolveFromCache<GetSubjectsResponse>(
-    (onUpdate, onError) =>
-        GetSubjectsCache(renew: renew, onUpdate: onUpdate, onError: onError),
-    onError: onError,
-    operationName: 'getSubjects',
-  );
+  }) async {
+    try {
+      return await TimetableGetSubjects().run();
+    } catch (e) {
+      onError?.call(e);
+      rethrow;
+    }
+  }
 
-  Future<GetHolidaysResponse> getSchoolHolidays({
+  Future<TimetableGetHolidaysResponse> getSchoolHolidays({
     void Function(Object)? onError,
     bool renew = false,
-  }) => resolveFromCache<GetHolidaysResponse>(
-    (onUpdate, onError) =>
-        GetHolidaysCache(renew: renew, onUpdate: onUpdate, onError: onError),
-    onError: onError,
-    operationName: 'getSchoolHolidays',
-  );
+  }) async {
+    try {
+      return await TimetableGetHolidays().run();
+    } catch (e) {
+      onError?.call(e);
+      rethrow;
+    }
+  }
 
-  Future<GetCurrentSchoolyearResponse> getCurrentSchoolyear({
+  Future<TimetableGetSchoolyearResponse> getCurrentSchoolyear({
     void Function(Object)? onError,
     bool renew = false,
-  }) => resolveFromCache<GetCurrentSchoolyearResponse>(
-    (onUpdate, onError) => GetCurrentSchoolyearCache(
-      renew: renew,
-      onUpdate: onUpdate,
-      onError: onError,
-    ),
-    onError: onError,
-    operationName: 'getCurrentSchoolyear',
-  );
+  }) async {
+    try {
+      return await TimetableGetSchoolyear().run();
+    } catch (e) {
+      onError?.call(e);
+      rethrow;
+    }
+  }
 
-  Future<GetTimegridUnitsResponse> getTimegrid({bool renew = false}) =>
-      resolveFromCache<GetTimegridUnitsResponse>(
-        (onUpdate, _) =>
-            GetTimegridUnitsCache(renew: renew, onUpdate: onUpdate),
-        operationName: 'getTimegrid',
-      );
+  Future<TimetableGetTimegridResponse> getTimegrid({bool renew = false}) =>
+      TimetableGetTimegrid().run();
 
   Future<GetCustomTimetableEventResponse> getCustomEvents({
     bool renew = false,

lib/storage/dev_tools_settings.dart

@@ -1,19 +1,84 @@
+import 'package:flutter/foundation.dart';
 import 'package:json_annotation/json_annotation.dart';
 
 part 'dev_tools_settings.g.dart';
 
+enum MarianumConnectEndpoint { live, beta, custom }
+
 @JsonSerializable()
 class DevToolsSettings {
   bool showPerformanceOverlay;
   bool checkerboardOffscreenLayers;
   bool checkerboardRasterCacheImages;
 
+  @JsonKey(defaultValue: MarianumConnectEndpoint.live)
+  MarianumConnectEndpoint marianumConnectEndpoint;
+
+  @JsonKey(defaultValue: '')
+  String marianumConnectCustomUrl;
+
   DevToolsSettings({
     required this.showPerformanceOverlay,
     required this.checkerboardOffscreenLayers,
     required this.checkerboardRasterCacheImages,
+    this.marianumConnectEndpoint = MarianumConnectEndpoint.live,
+    this.marianumConnectCustomUrl = '',
   });
 
+  // Resolves the effective base URL for the Marianum-Connect mobile API.
+  // Falls back to live when the custom URL is empty or malformed. HTTP is
+  // accepted alongside HTTPS only in debug/profile builds (developers can
+  // point at `http://10.0.2.2:8080` without configuring TLS locally); release
+  // builds restrict the custom endpoint to HTTPS so a leaked debug URL never
+  // ships an unencrypted bearer token over the wire.
+  String resolveMarianumConnectBaseUrl() {
+    switch (marianumConnectEndpoint) {
+      case MarianumConnectEndpoint.live:
+        return liveUrl;
+      case MarianumConnectEndpoint.beta:
+        return betaUrl;
+      case MarianumConnectEndpoint.custom:
+        final sanitized = sanitizeCustomUrl(marianumConnectCustomUrl);
+        return sanitized ?? liveUrl;
+    }
+  }
+
+  static const String liveUrl = 'https://connect.marianum-fulda.de';
+  static const String betaUrl = 'https://connect-beta.marianum-fulda.de';
+
+  /// `true` in builds where plaintext HTTP custom endpoints are still allowed
+  /// (debug, profile). Release builds keep this `false` and the picker
+  /// rejects `http://` entirely.
+  static bool get allowsHttpCustomEndpoint => !kReleaseMode;
+
+  /// Returns the trimmed URL without a trailing slash, or null when the input
+  /// is not a usable HTTP/HTTPS URL. HTTP is only accepted when
+  /// [allowsHttpCustomEndpoint] is `true` — i.e. outside release builds.
+  static String? sanitizeCustomUrl(String raw) {
+    final trimmed = raw.trim();
+    if (trimmed.isEmpty) return null;
+    final uri = Uri.tryParse(trimmed);
+    if (uri == null || !uri.hasScheme) return null;
+    if (uri.scheme == 'https') {
+      // always fine
+    } else if (uri.scheme == 'http' && allowsHttpCustomEndpoint) {
+      // dev only
+    } else {
+      return null;
+    }
+    if (uri.host.isEmpty) return null;
+    return trimmed.endsWith('/')
+        ? trimmed.substring(0, trimmed.length - 1)
+        : trimmed;
+  }
+
+  /// `true` when the configured custom URL is plain HTTP — the picker shows
+  /// this as a warning so developers don't accidentally ship a debug URL.
+  bool get marianumConnectCustomUrlIsInsecure {
+    final sanitized = sanitizeCustomUrl(marianumConnectCustomUrl);
+    return sanitized != null && Uri.parse(sanitized).scheme == 'http';
+  }
+
   factory DevToolsSettings.fromJson(Map<String, dynamic> json) =>
       _$DevToolsSettingsFromJson(json);
   Map<String, dynamic> toJson() => _$DevToolsSettingsToJson(this);

lib/storage/dev_tools_settings.g.dart

@@ -6,17 +6,33 @@ part of 'dev_tools_settings.dart';
 // JsonSerializableGenerator
 // **************************************************************************
 
-DevToolsSettings _$DevToolsSettingsFromJson(Map<String, dynamic> json) =>
-    DevToolsSettings(
+DevToolsSettings _$DevToolsSettingsFromJson(
+  Map<String, dynamic> json,
+) => DevToolsSettings(
   showPerformanceOverlay: json['showPerformanceOverlay'] as bool,
   checkerboardOffscreenLayers: json['checkerboardOffscreenLayers'] as bool,
-      checkerboardRasterCacheImages:
-          json['checkerboardRasterCacheImages'] as bool,
-    );
+  checkerboardRasterCacheImages: json['checkerboardRasterCacheImages'] as bool,
+  marianumConnectEndpoint:
+      $enumDecodeNullable(
+        _$MarianumConnectEndpointEnumMap,
+        json['marianumConnectEndpoint'],
+      ) ??
+      MarianumConnectEndpoint.live,
+  marianumConnectCustomUrl: json['marianumConnectCustomUrl'] as String? ?? '',
+);
 
 Map<String, dynamic> _$DevToolsSettingsToJson(DevToolsSettings instance) =>
     <String, dynamic>{
       'showPerformanceOverlay': instance.showPerformanceOverlay,
       'checkerboardOffscreenLayers': instance.checkerboardOffscreenLayers,
       'checkerboardRasterCacheImages': instance.checkerboardRasterCacheImages,
+      'marianumConnectEndpoint':
+          _$MarianumConnectEndpointEnumMap[instance.marianumConnectEndpoint]!,
+      'marianumConnectCustomUrl': instance.marianumConnectCustomUrl,
     };
+
+const _$MarianumConnectEndpointEnumMap = {
+  MarianumConnectEndpoint.live: 'live',
+  MarianumConnectEndpoint.beta: 'beta',
+  MarianumConnectEndpoint.custom: 'custom',
+};

lib/view/login/login.dart

@@ -6,7 +6,11 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../background/widget_background_task.dart';
 import '../../state/app/modules/account/bloc/account_bloc.dart';
 import '../../state/app/modules/account/bloc/account_state.dart';
+import '../../state/app/modules/settings/bloc/settings_cubit.dart';
+import '../../storage/dev_tools_settings.dart';
+import '../../storage/settings.dart' as model;
 import '../../theming/light_app_theme.dart';
+import '../pages/settings/widgets/endpoint_picker.dart';
 import 'login_controller.dart';
 import 'widgets/login_branding.dart';
 import 'widgets/login_card.dart';
@@ -57,8 +61,17 @@ class _LoginState extends State<Login> {
                 minHeight: constraints.maxHeight,
                 maxWidth: 420,
               ),
-              child: IntrinsicHeight(
+              // spaceBetween statt Spacer-in-IntrinsicHeight: bei jeder
+              // Inhaltsänderung im unteren Block (z.B. EndpointLink mit
+              // dynamischem Label) würde IntrinsicHeight sonst die Column
+              // an die intrinsic-Höhe pinnen und ein paar Pixel Overflow
+              // produzieren. spaceBetween fügt nur den verbleibenden Gap
+              // ein und schrumpft sauber auf 0, wenn der Inhalt zu hoch
+              // wird — dann übernimmt der äußere ScrollView.
               child: Column(
+                mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                children: [
+                  Column(
                     children: [
                       const LoginHeader(),
                       const SizedBox(height: 28),
@@ -68,10 +81,13 @@ class _LoginState extends State<Login> {
                       ),
                       const SizedBox(height: 18),
                       const LoginDisclaimer(),
-                    const Spacer(),
-                    const LoginFooter(),
                     ],
                   ),
+                  const Column(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [_EndpointLink(), LoginFooter()],
+                  ),
+                ],
               ),
             ),
           ),
@@ -80,3 +96,59 @@ class _LoginState extends State<Login> {
     ),
   );
 }
+
+/// Subtle text link above the footer that surfaces the currently selected
+/// Marianum-Connect endpoint and opens the picker on tap. Always visible so
+/// devs can switch the endpoint before the first login without hunting for a
+/// long-press easter egg, but understated enough not to draw regular users
+/// into the dev menu.
+class _EndpointLink extends StatelessWidget {
+  const _EndpointLink();
+
+  @override
+  Widget build(BuildContext context) =>
+      BlocBuilder<SettingsCubit, model.Settings>(
+        builder: (context, settings) {
+          final dev = settings.devToolsSettings;
+          final label = _label(dev);
+          return Padding(
+            padding: const EdgeInsets.only(bottom: 4),
+            child: TextButton(
+              style: TextButton.styleFrom(
+                foregroundColor: Colors.white.withValues(alpha: 0.85),
+                padding: const EdgeInsets.symmetric(
+                  horizontal: 12,
+                  vertical: 4,
+                ),
+                minimumSize: const Size(0, 28),
+                tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                textStyle: const TextStyle(
+                  fontSize: 12,
+                  fontWeight: FontWeight.w500,
+                  decoration: TextDecoration.underline,
+                ),
+              ),
+              onPressed: () => MarianumConnectEndpointPicker.show(
+                context,
+                context.read<SettingsCubit>(),
+              ),
+              child: Text('Server: $label'),
+            ),
+          );
+        },
+      );
+
+  static String _label(DevToolsSettings dev) {
+    switch (dev.marianumConnectEndpoint) {
+      case MarianumConnectEndpoint.live:
+        return 'Normal';
+      case MarianumConnectEndpoint.beta:
+        return 'Beta';
+      case MarianumConnectEndpoint.custom:
+        final url = DevToolsSettings.sanitizeCustomUrl(
+          dev.marianumConnectCustomUrl,
+        );
+        return url ?? 'Eigener Server (ungültig)';
+    }
+  }
+}

lib/view/login/login_controller.dart

@@ -4,8 +4,9 @@ import 'package:flutter/foundation.dart';
 
 import '../../api/errors/auth_exception.dart';
 import '../../api/errors/error_mapper.dart';
-import '../../api/marianumcloud/talk/room/get_room.dart';
-import '../../api/marianumcloud/talk/room/get_room_params.dart';
+import '../../api/marianumconnect/auth/device_token_name.dart';
+import '../../api/marianumconnect/auth/token_storage.dart';
+import '../../api/marianumconnect/queries/auth_login/auth_login.dart';
 import '../../model/account_data.dart';
 import '../../widget_data/widget_sync.dart';
 
@@ -32,22 +33,28 @@ class LoginController extends ChangeNotifier {
     final user = username.trim().toLowerCase();
     try {
       await AccountData().removeData();
-      // Drop any cached widget snapshot from a previous account before the
-      // new credentials populate it — otherwise a re-login with a different
-      // user briefly shows the previous owner's timetable on the home screen.
+      // Vorherigen Token revoken bevor wir einen neuen anfordern — ein altes
+      // Account hätte sonst noch einen aktiven Token in api_tokens.
+      await const MarianumConnectTokenStorage().clear();
+      // Widget-Snapshot löschen, sonst blitzt nach Account-Wechsel kurz der
+      // Stundenplan des vorigen Users auf dem Home-Bildschirm.
       await WidgetSync.clear();
       await WidgetSync.triggerUpdate();
+      // AuthLogin = Credential-Probe + Token-Create in einem Call.
+      // 401 hier heißt: falsches Passwort.
+      await AuthLogin().run(
+        username: user,
+        password: password,
+        tokenName: await DeviceTokenName.resolve(),
+      );
       await AccountData().setData(user, password);
-      await GetRoom(GetRoomParams(includeStatus: false)).run();
       _loading = false;
       notifyListeners();
       return true;
     } catch (e) {
       log(e.toString());
       await AccountData().removeData();
-      // 401 from the probe means the credentials were wrong; everything else
-      // (no network, server down, TLS errors, …) gets the generic mapped
-      // message so the user knows it isn't their typo.
+      await const MarianumConnectTokenStorage().clear();
       final isWrongCredentials = e is AuthException && e.statusCode == 401;
       _errorMessage = isWrongCredentials
           ? 'Benutzername oder Passwort falsch.'

lib/view/pages/settings/data/default_settings.dart

@@ -62,6 +62,8 @@ class DefaultSettings {
       checkerboardOffscreenLayers: false,
       checkerboardRasterCacheImages: false,
       showPerformanceOverlay: false,
+      marianumConnectEndpoint: MarianumConnectEndpoint.live,
+      marianumConnectCustomUrl: '',
     ),
   );
 }

lib/view/pages/settings/sections/account_section.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 
+import '../../../../api/marianumconnect/queries/auth_logout/auth_logout.dart';
 import '../../../../model/account_data.dart';
 import '../../../../state/app/modules/account/bloc/account_bloc.dart';
 import '../../../../state/app/modules/account/bloc/account_state.dart';
@@ -31,10 +32,18 @@ class AccountSection extends StatelessWidget {
         title: 'Abmelden?',
         content: 'Möchtest du dich wirklich abmelden?',
         confirmButton: 'Abmelden',
-        onConfirmAsync: AccountData().removeData,
+        onConfirmAsync: _performLogout,
       ),
     );
     if (confirmed != true || !context.mounted) return;
     context.read<AccountBloc>().setStatus(AccountStatus.loggedOut);
   }
+
+  // Best-effort revoke of the MC bearer token before we wipe local credentials.
+  // The token storage itself is cleared inside AuthLogout regardless of network
+  // success, so an offline logout still gets us into a clean local state.
+  Future<void> _performLogout() async {
+    await AuthLogout().run();
+    await AccountData().removeData();
+  }
 }

lib/view/pages/settings/sections/dev_tools_section.dart

@@ -11,6 +11,7 @@ import '../../../../widget/confirm_dialog.dart';
 import '../../../../widget/debug/cache_view.dart';
 import '../../../../widget/debug/json_viewer.dart';
 import '../../../../widget/details_bottom_sheet.dart';
+import '../widgets/endpoint_picker.dart';
 
 class DevToolsSection extends StatefulWidget {
   final SettingsCubit settings;
@@ -88,6 +89,18 @@ class _DevToolsSectionState extends State<DevToolsSection> {
           );
         },
       ),
+      ListTile(
+        leading: const CenteredLeading(Icon(Icons.cloud_outlined)),
+        title: const Text('Marianum-Connect-Server'),
+        subtitle: Text(
+          MarianumConnectEndpointPicker.labelFor(
+            widget.settings.val().devToolsSettings,
+          ),
+        ),
+        trailing: const Icon(Icons.arrow_right),
+        onTap: () =>
+            MarianumConnectEndpointPicker.show(context, widget.settings),
+      ),
       ListTile(
         leading: const CenteredLeading(Icon(Icons.image_outlined)),
         title: const Text('Thumb-storage'),

lib/view/pages/settings/widgets/endpoint_picker.dart

@@ -0,0 +1,206 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import '../../../../api/marianumconnect/auth/token_storage.dart';
+import '../../../../state/app/modules/settings/bloc/settings_cubit.dart';
+import '../../../../storage/dev_tools_settings.dart';
+import '../../../../storage/settings.dart' as model;
+import '../../../../widget/details_bottom_sheet.dart';
+
+/// Bottom-sheet that lets the user switch the active Marianum-Connect
+/// endpoint (live / beta / custom). Shared between the dev-tools section and
+/// the login screen so both places offer the exact same picker.
+///
+/// On commit the change lands in the SettingsCubit (which in turn updates
+/// the dio singleton via the BlocBuilder in `main.dart`) and the currently
+/// stored bearer token is cleared — that token belongs to the old host and
+/// would be rejected by the new one.
+class MarianumConnectEndpointPicker {
+  const MarianumConnectEndpointPicker._();
+
+  static void show(BuildContext context, SettingsCubit settings) {
+    showDetailsBottomSheet(
+      context,
+      header: const ListTile(title: Text('Marianum-Connect-Server')),
+      children: (sheetCtx) => [
+        BlocBuilder<SettingsCubit, model.Settings>(
+          bloc: settings,
+          builder: (_, _) {
+            final dev = settings.val().devToolsSettings;
+            return _PickerBody(
+              current: dev.marianumConnectEndpoint,
+              customUrl: dev.marianumConnectCustomUrl,
+              onChanged: (next, custom) async {
+                final mutable = settings.val(write: true).devToolsSettings;
+                mutable.marianumConnectEndpoint = next;
+                if (custom != null) mutable.marianumConnectCustomUrl = custom;
+                await const MarianumConnectTokenStorage().clear();
+              },
+            );
+          },
+        ),
+      ],
+    );
+  }
+
+  /// Short human-readable label of the currently selected endpoint — used by
+  /// the settings list tile and the login screen hint.
+  static String labelFor(DevToolsSettings dev) {
+    switch (dev.marianumConnectEndpoint) {
+      case MarianumConnectEndpoint.live:
+        return 'Normal (${DevToolsSettings.liveUrl})';
+      case MarianumConnectEndpoint.beta:
+        return 'Beta (${DevToolsSettings.betaUrl})';
+      case MarianumConnectEndpoint.custom:
+        final url = DevToolsSettings.sanitizeCustomUrl(
+          dev.marianumConnectCustomUrl,
+        );
+        return url == null
+            ? 'Eigener Server (ungültig – Normal wird verwendet)'
+            : 'Eigener Server ($url)';
+    }
+  }
+}
+
+class _PickerBody extends StatefulWidget {
+  final MarianumConnectEndpoint current;
+  final String customUrl;
+  final Future<void> Function(MarianumConnectEndpoint next, String? customUrl)
+  onChanged;
+
+  const _PickerBody({
+    required this.current,
+    required this.customUrl,
+    required this.onChanged,
+  });
+
+  @override
+  State<_PickerBody> createState() => _PickerBodyState();
+}
+
+class _PickerBodyState extends State<_PickerBody> {
+  late MarianumConnectEndpoint _selected;
+  late TextEditingController _customController;
+  String? _customError;
+
+  @override
+  void initState() {
+    super.initState();
+    _selected = widget.current;
+    _customController = TextEditingController(text: widget.customUrl);
+  }
+
+  @override
+  void dispose() {
+    _customController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final allowsHttp = DevToolsSettings.allowsHttpCustomEndpoint;
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      crossAxisAlignment: CrossAxisAlignment.stretch,
+      children: [
+        RadioGroup<MarianumConnectEndpoint>(
+          groupValue: _selected,
+          onChanged: _selectEndpoint,
+          child: Column(
+            children: [
+              const RadioListTile<MarianumConnectEndpoint>(
+                title: Text('Normal'),
+                subtitle: Text(DevToolsSettings.liveUrl),
+                value: MarianumConnectEndpoint.live,
+              ),
+              const RadioListTile<MarianumConnectEndpoint>(
+                title: Text('Beta'),
+                subtitle: Text(DevToolsSettings.betaUrl),
+                value: MarianumConnectEndpoint.beta,
+              ),
+              RadioListTile<MarianumConnectEndpoint>(
+                title: const Text('Eigener Server'),
+                subtitle: Text(
+                  allowsHttp
+                      ? 'HTTP oder HTTPS, ohne abschließenden Slash. '
+                            'HTTP nur für lokale Entwicklung.'
+                      : 'Nur HTTPS-URLs, ohne abschließenden Slash.',
+                ),
+                value: MarianumConnectEndpoint.custom,
+              ),
+            ],
+          ),
+        ),
+        if (_selected == MarianumConnectEndpoint.custom)
+          Padding(
+            padding: const EdgeInsets.fromLTRB(24, 0, 24, 16),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                TextField(
+                  controller: _customController,
+                  keyboardType: TextInputType.url,
+                  decoration: InputDecoration(
+                    labelText: allowsHttp ? 'http(s)://...' : 'https://...',
+                    errorText: _customError,
+                  ),
+                  onChanged: (_) => setState(() => _customError = null),
+                ),
+                if (allowsHttp && _isHttpUrl(_customController.text))
+                  const Padding(
+                    padding: EdgeInsets.only(top: 8),
+                    child: Text(
+                      '⚠ HTTP überträgt den Bearer-Token unverschlüsselt. '
+                      'Nur für lokale Entwicklung benutzen.',
+                      style: TextStyle(fontSize: 12, color: Colors.orange),
+                    ),
+                  ),
+              ],
+            ),
+          ),
+        Padding(
+          padding: const EdgeInsets.all(16),
+          child: FilledButton(
+            onPressed: _confirm,
+            child: const Text('Übernehmen'),
+          ),
+        ),
+      ],
+    );
+  }
+
+  void _selectEndpoint(MarianumConnectEndpoint? value) {
+    if (value == null) return;
+    setState(() {
+      _selected = value;
+      _customError = null;
+    });
+  }
+
+  Future<void> _confirm() async {
+    if (_selected == MarianumConnectEndpoint.custom) {
+      final sanitized = DevToolsSettings.sanitizeCustomUrl(
+        _customController.text,
+      );
+      if (sanitized == null) {
+        setState(
+          () => _customError = DevToolsSettings.allowsHttpCustomEndpoint
+              ? 'Ungültige URL (http(s)://host[:port])'
+              : 'Ungültige URL — nur HTTPS erlaubt',
+        );
+        return;
+      }
+      await widget.onChanged(_selected, sanitized);
+    } else {
+      await widget.onChanged(_selected, null);
+    }
+    if (!mounted) return;
+    Navigator.of(context).pop();
+  }
+
+  static bool _isHttpUrl(String value) {
+    final trimmed = value.trim();
+    final uri = Uri.tryParse(trimmed);
+    return uri != null && uri.hasScheme && uri.scheme == 'http';
+  }
+}

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

@@ -1,21 +1,21 @@
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../../../../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
-import '../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
 
 sealed class ArbitraryAppointment {
   const ArbitraryAppointment();
 
   T when<T>({
-    required T Function(GetTimetableResponseObject lesson) webuntis,
+    required T Function(McTimetableEntry lesson) lesson,
     required T Function(CustomTimetableEvent event) custom,
   }) => switch (this) {
-    WebuntisAppointment(:final lesson) => webuntis(lesson),
+    LessonAppointment(:final entry) => lesson(entry),
     CustomAppointment(:final event) => custom(event),
   };
 }
 
-class WebuntisAppointment extends ArbitraryAppointment {
-  final GetTimetableResponseObject lesson;
-  const WebuntisAppointment(this.lesson);
+class LessonAppointment extends ArbitraryAppointment {
+  final McTimetableEntry entry;
+  const LessonAppointment(this.entry);
 }
 
 class CustomAppointment extends ArbitraryAppointment {

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

@@ -282,7 +282,7 @@ class LaidOutOverflow extends LaidOutCell {
 int _appointmentPriority(Appointment a) {
   final id = a.id;
   if (id is CustomAppointment) return 0;
-  if (id is WebuntisAppointment && id.lesson.code == 'cancelled') return 1;
+  if (id is LessonAppointment && id.entry.status == 'CANCELLED') return 1;
   return 2;
 }
 

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

@@ -9,6 +9,10 @@ class LessonColor {
   static const Color irregular = Color(0xff8F19B3);
   static const Color teacherChanged = Color(0xFF29639B);
   static const Color event = Color(0xff2E7D32);
+  // Petrol-Türkis für Sonder-Lesson-Types (Aufsicht, Sprechstunde, …) —
+  // hebt sie deutlich von regulärem Unterricht (Marianum-Rot) und Events
+  // (Grün) ab, ohne den Status-übergreifenden Farb-Code zu verwässern.
+  static const Color duty = Color(0xff00796B);
   static const Color parseFallback = Color(0xff404040);
 
   static Color forStatus(LessonStatus status) {
@@ -21,6 +25,8 @@ class LessonColor {
         return irregular;
       case LessonStatus.teacherChanged:
         return teacherChanged;
+      case LessonStatus.duty:
+        return duty;
       case LessonStatus.past:
       case LessonStatus.regular:
         return regular;

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

@@ -0,0 +1,72 @@
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
+
+/// Combines back-to-back lessons with identical subject/room/teacher/status
+/// into a single visual block. Shared by the calendar tile builder and the
+/// home-widget data mapper so both surfaces show the same merged spans.
+///
+/// Built as a new list rather than mutating inputs — earlier in-place merges
+/// extended merged blocks further on every rebuild when the same lesson
+/// objects were observed again.
+class LessonMerger {
+  const LessonMerger._();
+
+  static const Duration defaultMaxGap = Duration(minutes: 5);
+
+  static List<McTimetableEntry> merge(
+    List<McTimetableEntry> input, {
+    Duration maxGap = defaultMaxGap,
+  }) {
+    if (input.isEmpty) return const [];
+
+    final sorted = [...input]
+      ..sort((a, b) => a.startDateTime.compareTo(b.startDateTime));
+
+    final merged = <McTimetableEntry>[];
+    for (final current in sorted) {
+      if (merged.isNotEmpty && _canMerge(merged.last, current, maxGap)) {
+        final prev = merged.removeLast();
+        merged.add(_extendedEnd(prev, current.endTime));
+      } else {
+        merged.add(current);
+      }
+    }
+    return merged;
+  }
+
+  static bool _canMerge(
+    McTimetableEntry a,
+    McTimetableEntry b,
+    Duration maxGap,
+  ) {
+    if (a.subjects.firstOrNull != b.subjects.firstOrNull) return false;
+    if (a.rooms.firstOrNull != b.rooms.firstOrNull) return false;
+    if (a.teachers.firstOrNull?.shortName !=
+        b.teachers.firstOrNull?.shortName) {
+      return false;
+    }
+    if (a.status != b.status) return false;
+    // Lower bound on the gap — without it, two identical-metadata lessons that
+    // overlap in time would silently collapse into one.
+    final gap = b.startDateTime.difference(a.endDateTime);
+    return !gap.isNegative && gap <= maxGap;
+  }
+
+  static McTimetableEntry _extendedEnd(
+    McTimetableEntry source,
+    DateTime newEndTime,
+  ) => McTimetableEntry(
+    id: source.id,
+    date: source.date,
+    startTime: source.startTime,
+    endTime: newEndTime,
+    subjects: source.subjects,
+    teachers: source.teachers,
+    rooms: source.rooms,
+    classNames: source.classNames,
+    lessonType: source.lessonType,
+    status: source.status,
+    substitutionText: source.substitutionText,
+    lessonText: source.lessonText,
+    infoText: source.infoText,
+  );
+}

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

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import '../../../../api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart';
+import '../../../../api/marianumconnect/queries/timetable_get_timegrid/timetable_get_timegrid_response.dart';
 import '../../../../state/app/modules/timetable/bloc/timetable_state.dart';
 
 class LessonPeriod {
@@ -28,22 +28,30 @@ class LessonPeriodSchedule {
 
   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;
+  static LessonPeriodSchedule? fromApi(TimetableGetTimegridResponse response) {
+    // The Marianum-Connect endpoint returns one entry per (weekday, unit). The
+    // school's bell schedule is identical Mon–Fri, so we pick Monday as the
+    // canonical day and fall back to the first available weekday if Monday is
+    // missing.
+    final monday = response.result
+        .where((u) => u.dayOfWeek == McDayOfWeek.monday)
+        .toList();
+    final source = monday.isNotEmpty ? monday : response.result;
+    if (source.isEmpty) return null;
 
     final periods =
-        canonical.timeUnits
+        source
             .map(
               (u) => LessonPeriod(
-                name: u.name,
-                start: _fromHHMM(u.startTime),
-                end: _fromHHMM(u.endTime),
+                name: u.label,
+                start: TimeOfDay(
+                  hour: u.startTime.hour,
+                  minute: u.startTime.minute,
+                ),
+                end: TimeOfDay(
+                  hour: u.endTime.hour,
+                  minute: u.endTime.minute,
+                ),
               ),
             )
             .toList()
@@ -144,7 +152,4 @@ class LessonPeriodSchedule {
     }
     return LessonPeriodSchedule(result);
   }
-
-  static TimeOfDay _fromHHMM(int hhmm) =>
-      TimeOfDay(hour: hhmm ~/ 100, minute: hhmm % 100);
 }

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

@@ -1,32 +1,40 @@
-import '../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 
 enum LessonStatus {
   cancelled,
   event,
   irregular,
   teacherChanged,
+  duty,
   past,
   ongoing,
   regular,
 }
 
 class LessonStatusClassifier {
+  /// Mirrors the legacy Webuntis classifier: cancelled trumps everything,
+  /// then event (subject-less lessons such as Wandertag), then irregular
+  /// (status from the backend or a slot without an assigned teacher), then
+  /// teacherChanged when the backend reports a substitution swap, then
+  /// duty (Aufsicht/Sprechstunde/…) so they stand out from regular
+  /// classroom lessons, then the time-based past/ongoing/regular states.
   static LessonStatus classify(
-    GetTimetableResponseObject lesson,
+    McTimetableEntry entry,
     DateTime startTime,
     DateTime endTime,
     DateTime now, {
     bool isEvent = false,
+    bool isDuty = false,
   }) {
-    if (lesson.code == 'cancelled') return LessonStatus.cancelled;
+    if (entry.status == 'CANCELLED') return LessonStatus.cancelled;
     if (isEvent) return LessonStatus.event;
-    if (lesson.code == 'irregular' ||
-        (lesson.te.isNotEmpty && lesson.te.first.id == 0)) {
+    if (entry.status == 'IRREGULAR' || entry.teachers.isEmpty) {
       return LessonStatus.irregular;
     }
-    if (lesson.te.any((t) => t.orgname != null)) {
+    if (entry.teachers.any((t) => (t.originalShortName ?? '').isNotEmpty)) {
       return LessonStatus.teacherChanged;
     }
+    if (isDuty) return LessonStatus.duty;
     if (endTime.isBefore(now)) return LessonStatus.past;
     if (startTime.isBefore(now) && endTime.isAfter(now)) {
       return LessonStatus.ongoing;

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

@@ -0,0 +1,33 @@
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
+
+/// Derives a human-readable title from the Marianum-Connect `lessonType` for
+/// lessons that have no subject of their own (Aufsicht, Sprechstunde, …).
+/// Shared between the calendar tile and the lesson detail sheet so both
+/// surfaces show the same wording, with the room rendered first so it
+/// survives a truncated tile.
+class LessonTypeLabel {
+  static const String fallback = 'Event';
+
+  static String forEntry(McTimetableEntry lesson) {
+    final base = baseLabel(lesson.lessonType);
+    final room = (lesson.rooms.firstOrNull ?? '').trim();
+    return room.isEmpty ? base : '$room $base';
+  }
+
+  /// Returns just the type wording without the room — useful when the caller
+  /// renders the room separately (e.g. as a subtitle line).
+  static String baseLabel(String lessonType) {
+    switch (lessonType) {
+      case 'BREAK_SUPERVISION':
+        return 'Aufsicht';
+      case 'OFFICE_HOUR':
+        return 'Sprechstunde';
+      case 'STANDBY':
+        return 'Bereitschaft';
+      case 'EXAM':
+        return 'Prüfung';
+      default:
+        return fallback;
+    }
+  }
+}

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

@@ -1,31 +1,27 @@
-import 'package:collection/collection.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
+import '../../../../api/marianumconnect/queries/timetable_get_subjects/timetable_get_subjects_response.dart';
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
 import '../../../../api/mhsl/custom_timetable_event/custom_timetable_event.dart';
-import '../../../../api/webuntis/queries/get_rooms/get_rooms_response.dart';
-import '../../../../api/webuntis/queries/get_subjects/get_subjects_response.dart';
-import '../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
 import '../../../../storage/timetable_settings.dart';
 import '../custom_events/custom_event_colors.dart';
 import 'arbitrary_appointment.dart';
 import 'lesson_color.dart';
 import 'lesson_status.dart';
+import 'lesson_type_label.dart';
 import 'rrule_with_exceptions.dart';
 import 'timetable_name_mode.dart';
-import 'webuntis_time.dart';
 
 class TimetableAppointmentFactory {
-  final List<GetTimetableResponseObject> lessons;
+  final List<McTimetableEntry> lessons;
   final List<CustomTimetableEvent> customEvents;
-  final GetRoomsResponse rooms;
-  final GetSubjectsResponse subjects;
+  final List<McSubject> subjects;
   final TimetableSettings settings;
   final DateTime now;
 
   TimetableAppointmentFactory({
     required this.lessons,
     required this.customEvents,
-    required this.rooms,
     required this.subjects,
     required this.settings,
     required this.now,
@@ -41,37 +37,40 @@ class TimetableAppointmentFactory {
     ];
   }
 
-  Appointment _lessonToAppointment(GetTimetableResponseObject lesson) {
+  Appointment _lessonToAppointment(McTimetableEntry lesson) {
     try {
-      final startTime = WebuntisTime.parse(lesson.date, lesson.startTime);
-      final endTime = WebuntisTime.parse(lesson.date, lesson.endTime);
-      final subject = subjects.result.firstWhereOrNull(
-        (s) => s.id == lesson.su.firstOrNull?.id,
-      );
+      final startTime = lesson.startDateTime;
+      final endTime = lesson.endDateTime;
+      final subjectShortName = lesson.subjects.firstOrNull;
+      // "Event"-Status nur, wenn auch kein bekannter Sonder-Lesson-Type vorliegt
+      // — Aufsicht/Sprechstunde/etc. werden sonst grün statt eigenständig
+      // eingefärbt.
+      final isEvent = subjectShortName == null && lesson.lessonType == 'LESSON';
+      final isDuty = lesson.lessonType != 'LESSON';
       final status = LessonStatusClassifier.classify(
         lesson,
         startTime,
         endTime,
         now,
-        isEvent: subject == null,
+        isEvent: isEvent,
+        isDuty: isDuty,
       );
 
       return Appointment(
-        id: WebuntisAppointment(lesson),
+        id: LessonAppointment(lesson),
         startTime: startTime,
         endTime: endTime,
-        subject: _subjectName(lesson, subject),
+        subject: _subjectName(subjectShortName, lesson),
         location: _locationLabel(lesson),
-        notes: lesson.activityType,
         color: LessonColor.forStatus(status),
       );
     } catch (_) {
       return Appointment(
-        id: WebuntisAppointment(lesson),
-        startTime: WebuntisTime.parse(lesson.date, lesson.startTime),
-        endTime: WebuntisTime.parse(lesson.date, lesson.endTime),
+        id: LessonAppointment(lesson),
+        startTime: lesson.startDateTime,
+        endTime: lesson.endDateTime,
         subject: 'Änderung',
-        notes: lesson.info,
+        notes: lesson.infoText,
         location: 'Unbekannt',
         color: LessonColor.parseFallback,
         startTimeZone: '',
@@ -147,32 +146,48 @@ class TimetableAppointmentFactory {
         e.second == 0;
   }
 
-  String _subjectName(
-    GetTimetableResponseObject lesson,
-    GetSubjectsResponseObject? subject,
-  ) {
-    if (subject == null) return 'Event';
+  String _subjectName(String? subjectShort, McTimetableEntry lesson) {
+    if (subjectShort != null) {
+      final lookup =
+          subjects.where((s) => s.shortName == subjectShort).firstOrNull;
       final name = switch (settings.timetableNameMode) {
-      TimetableNameMode.name => subject.name,
-      TimetableNameMode.longName => subject.longName,
-      TimetableNameMode.alternateName => subject.alternateName,
+        // Backend liefert nur shortName + longName; alternateName fällt auf
+        // longName zurück.
+        TimetableNameMode.name => subjectShort,
+        TimetableNameMode.longName => lookup?.longName ?? subjectShort,
+        TimetableNameMode.alternateName => lookup?.longName ?? subjectShort,
       };
-    return _collapseWhitespace(name) ?? 'Event';
+      final collapsed = _collapseWhitespace(name);
+      if (collapsed != null) return collapsed;
+    }
+    // Subject leer → Titel aus dem Lesson-Type ableiten. Pausenaufsicht etc.
+    // sollen nicht generisch als "Event" auftauchen, sondern ihren Zweck samt
+    // Ort tragen.
+    return LessonTypeLabel.forEntry(lesson);
   }
 
-  String _locationLabel(GetTimetableResponseObject lesson) {
+  String _locationLabel(McTimetableEntry lesson) {
     final roomName =
-        _collapseWhitespace(
-          rooms.result
-              .firstWhereOrNull((r) => r.id == lesson.ro.firstOrNull?.id)
-              ?.name,
-        ) ??
-        'Unbekannt';
+        _collapseWhitespace(lesson.rooms.firstOrNull) ?? 'Unbekannt';
     final teacherName =
-        _collapseWhitespace(lesson.te.firstOrNull?.longname) ?? 'Unbekannt';
+        _teacherLabel(lesson.teachers.firstOrNull) ?? 'Unbekannt';
     return '$roomName\n$teacherName';
   }
 
+  /// Backend serves teachers with their full display name ("Stefan Müller"),
+  /// which doesn't fit into a single calendar tile alongside the room. We
+  /// reduce it to the last whitespace-separated token (the surname) for the
+  /// overview; the detail sheet still renders the full name as a subtitle.
+  static String? _teacherLabel(McTimetableTeacher? teacher) {
+    if (teacher == null) return null;
+    final display = _collapseWhitespace(teacher.displayName);
+    if (display != null && display.isNotEmpty) {
+      final parts = display.split(' ');
+      return parts.isEmpty ? display : parts.last;
+    }
+    return _collapseWhitespace(teacher.shortName);
+  }
+
   /// Collapses any line-break or whitespace run to a single space and trims.
   /// Returns null when input is null or fully whitespace. Webuntis sometimes
   /// returns multi-line room names like "A30\n4" — this normalizes those so
@@ -189,66 +204,67 @@ class TimetableAppointmentFactory {
     return cleaned.isEmpty ? null : cleaned;
   }
 
-  // Pure: returns a new list of fresh objects, does not mutate input.
-  // (The previous version replaced `previous.endTime` in place, which
-  // mutated the original lesson object passed in via [input]. Across
-  // rebuilds those mutated lessons were observed again by the next merge
-  // pass — extending lessons further or, after the overlap-gap guard was
-  // added to [_canMerge], even causing the second half of a double lesson
-  // to be emitted alongside the already-merged block.)
-  static List<GetTimetableResponseObject> _mergeAdjacentLessons(
-    List<GetTimetableResponseObject> input, {
+  // Pure: builds a new list, does not mutate inputs. The previous version
+  // mutated `previous.endTime` in place which caused merged blocks to grow
+  // further on subsequent rebuilds when the same lesson objects were observed
+  // again by the next merge pass.
+  static List<McTimetableEntry> _mergeAdjacentLessons(
+    List<McTimetableEntry> input, {
     Duration maxGap = const Duration(minutes: 5),
   }) {
     if (input.isEmpty) return const [];
 
     final sorted = [...input]
-      ..sort(
-        (a, b) => WebuntisTime.parse(
-          a.date,
-          a.startTime,
-        ).compareTo(WebuntisTime.parse(b.date, b.startTime)),
-      );
+      ..sort((a, b) => a.startDateTime.compareTo(b.startDateTime));
 
-    final merged = <GetTimetableResponseObject>[];
+    final merged = <McTimetableEntry>[];
     for (final current in sorted) {
       if (merged.isNotEmpty && _canMerge(merged.last, current, maxGap)) {
-        // `merged.last` is always a copy we created below, so mutating its
-        // endTime is safe and keeps the next iteration's gap check correct.
-        merged.last.endTime = current.endTime;
+        final prev = merged.removeLast();
+        merged.add(_extendedEnd(prev, current.endTime));
       } else {
-        merged.add(_copyLesson(current));
+        merged.add(current);
       }
     }
     return merged;
   }
 
-  static GetTimetableResponseObject _copyLesson(GetTimetableResponseObject l) =>
-      GetTimetableResponseObject.fromJson(l.toJson());
+  static McTimetableEntry _extendedEnd(
+    McTimetableEntry source,
+    DateTime newEndTime,
+  ) => McTimetableEntry(
+    id: source.id,
+    date: source.date,
+    startTime: source.startTime,
+    endTime: newEndTime,
+    subjects: source.subjects,
+    teachers: source.teachers,
+    rooms: source.rooms,
+    classNames: source.classNames,
+    lessonType: source.lessonType,
+    status: source.status,
+    substitutionText: source.substitutionText,
+    lessonText: source.lessonText,
+    infoText: source.infoText,
+  );
 
   static bool _canMerge(
-    GetTimetableResponseObject a,
-    GetTimetableResponseObject b,
+    McTimetableEntry a,
+    McTimetableEntry b,
     Duration maxGap,
   ) {
-    final aSubject = a.su.firstOrNull?.id;
-    final bSubject = b.su.firstOrNull?.id;
-    if (aSubject == null || bSubject == null || aSubject != bSubject) {
+    if (a.subjects.firstOrNull != b.subjects.firstOrNull) return false;
+    if (a.rooms.firstOrNull != b.rooms.firstOrNull) return false;
+    if (a.teachers.firstOrNull?.shortName !=
+        b.teachers.firstOrNull?.shortName) {
       return false;
     }
-    if (a.ro.firstOrNull?.id != b.ro.firstOrNull?.id) return false;
-    if (a.te.firstOrNull?.id != b.te.firstOrNull?.id) return false;
-    if (a.code != b.code) return false;
+    if (a.status != b.status) return false;
 
     // Merge only sequential lessons (b starts at or after a ends, within the
     // tolerance). Without the lower bound, identical-metadata lessons that
-    // overlap in time would silently collapse into one — and because the
-    // merge sets `previous.endTime = current.endTime`, an overlapping merge
-    // can even truncate the earlier lesson.
-    final gap = WebuntisTime.parse(
-      b.date,
-      b.startTime,
-    ).difference(WebuntisTime.parse(a.date, a.endTime));
+    // overlap in time would silently collapse into one.
+    final gap = b.startDateTime.difference(a.endDateTime);
     return !gap.isNegative && gap <= maxGap;
   }
 }

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

@@ -1,16 +0,0 @@
-import 'package:intl/intl.dart';
-
-class WebuntisTime {
-  static final DateFormat _dateFormat = DateFormat('yyyyMMdd');
-
-  static DateTime parse(int date, int time) {
-    final timeString = time.toString().padLeft(4, '0');
-    return DateTime.parse(
-      '$date ${timeString.substring(0, 2)}:${timeString.substring(2, 4)}',
-    );
-  }
-
-  static int formatDate(DateTime date) => int.parse(_dateFormat.format(date));
-
-  static String dateKey(DateTime date) => _dateFormat.format(date);
-}

lib/view/pages/timetable/details/appointment_details_dispatcher.dart

@@ -4,7 +4,7 @@ import 'package:syncfusion_flutter_calendar/calendar.dart';
 import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
 import '../data/arbitrary_appointment.dart';
 import 'custom_event_sheet.dart';
-import 'webuntis_lesson_sheet.dart';
+import 'lesson_sheet.dart';
 
 class AppointmentDetailsDispatcher {
   static void show(
@@ -16,8 +16,8 @@ class AppointmentDetailsDispatcher {
     if (id is! ArbitraryAppointment) return;
 
     id.when(
-      webuntis: (lesson) =>
-          WebuntisLessonSheet.show(context, bloc, appointment, lesson),
+      lesson: (entry) =>
+          LessonSheet.show(context, bloc, appointment, entry),
       custom: (event) => CustomEventSheet.show(context, event),
     );
   }

lib/view/pages/timetable/details/lesson_sheet.dart

@@ -0,0 +1,302 @@
+import 'package:flutter/material.dart';
+import 'package:syncfusion_flutter_calendar/calendar.dart';
+
+import '../../../../api/marianumconnect/queries/timetable_get_week/timetable_get_week_response.dart';
+import '../../../../extensions/date_time.dart';
+import '../../../../extensions/text.dart';
+import '../../../../routing/app_routes.dart';
+import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
+import '../../../../widget/debug/debug_tile.dart';
+import '../../../../widget/details_bottom_sheet.dart';
+import '../data/lesson_type_label.dart';
+
+class LessonSheet {
+  static void show(
+    BuildContext context,
+    TimetableBloc bloc,
+    Appointment appointment,
+    McTimetableEntry lesson,
+  ) {
+    final state = bloc.state.data;
+    if (state == null) return;
+
+    final subjectShort = lesson.subjects.firstOrNull;
+    final headerLong = subjectShort == null
+        ? null
+        : state.subjects?.result
+              .where((s) => s.shortName == subjectShort)
+              .firstOrNull
+              ?.longName;
+    // Bei Stunden ohne Fach (Pausenaufsicht etc.) den Lesson-Type-Titel
+    // einsetzen — sonst stünde im Header nur ein generisches "?".
+    final headerTitle = subjectShort != null
+        ? firstNonEmpty([subjectShort, headerLong, '?'])
+        : LessonTypeLabel.forEntry(lesson);
+    final headerLongName =
+        (headerLong != null && headerLong.isNotEmpty && headerLong != headerTitle)
+        ? headerLong
+        : '';
+
+    final timeRange = appointment.startTime.timeRangeTo(appointment.endTime);
+
+    showDetailsBottomSheet(
+      context,
+      header: ListTile(
+        leading: Icon(_iconForStatus(lesson.status), size: 32),
+        title: Text(
+          '${_statusPrefix(lesson.status)}$headerTitle',
+          style: const TextStyle(fontWeight: FontWeight.bold),
+        ),
+        subtitle: Text(
+          headerLongName.isNotEmpty ? '$timeRange\n$headerLongName' : timeRange,
+        ),
+        isThreeLine: headerLongName.isNotEmpty,
+      ),
+      children: (_) => <Widget>[
+        ListTile(
+          leading: const Icon(Icons.notifications_active),
+          title: Text('Status: ${_statusLabel(lesson.status)}'),
+        ),
+        if (lesson.subjects.length > 1)
+          _listTile(
+            icon: Icons.book_outlined,
+            label: 'Fächer',
+            entries: lesson.subjects
+                .map(
+                  (s) => _line(s, longname: _subjectLongName(state.subjects, s)),
+                )
+                .toList(),
+          ),
+        _roomTile(context, lesson),
+        _teacherTile(lesson),
+        if (lesson.classNames.isNotEmpty)
+          _listTile(
+            icon: Icons.people,
+            label: lesson.classNames.length == 1 ? 'Klasse' : 'Klassen',
+            entries: lesson.classNames.map(_line).toList(),
+          ),
+        ..._optionalTextTiles(lesson),
+        DebugTile(context).jsonData(lesson.toJson()),
+      ],
+    );
+  }
+
+  static Widget _roomTile(BuildContext context, McTimetableEntry lesson) {
+    final trailing = IconButton(
+      icon: const Icon(Icons.house_outlined),
+      onPressed: () => AppRoutes.openRoomplan(context),
+    );
+
+    if (lesson.rooms.isEmpty) {
+      return ListTile(
+        leading: const Icon(Icons.room),
+        title: const Text('Raum: ?'),
+        trailing: trailing,
+      );
+    }
+
+    final entries = lesson.rooms
+        .map((name) => (main: _line(name), sub: null as String?))
+        .toList();
+
+    return _listTileWithSubs(
+      icon: Icons.room,
+      label: lesson.rooms.length == 1 ? 'Raum' : 'Räume',
+      entries: entries,
+      trailing: trailing,
+    );
+  }
+
+  static Widget _teacherTile(McTimetableEntry lesson) {
+    if (lesson.teachers.isEmpty) {
+      return const ListTile(
+        leading: Icon(Icons.person),
+        title: Text('Lehrkraft: ?'),
+      );
+    }
+
+    final entries = lesson.teachers.map((t) {
+      final shortName = t.shortName.isEmpty ? '?' : t.shortName;
+      final longName = t.displayName.trim();
+      final orgShort = (t.originalShortName ?? '').trim();
+      final orgLong = (t.originalDisplayName ?? '').trim();
+
+      final subLines = <String>[];
+      if (longName.isNotEmpty && longName != shortName) {
+        subLines.add(longName);
+      }
+      if (orgShort.isNotEmpty) {
+        final label = orgLong.isEmpty || orgLong == orgShort
+            ? orgShort
+            : '$orgShort · $orgLong';
+        subLines.add('ehemals $label');
+      }
+
+      return (
+        main: shortName,
+        sub: subLines.isEmpty ? null : subLines.join('\n'),
+      );
+    }).toList();
+
+    return _listTileWithSubs(
+      icon: Icons.person,
+      label: lesson.teachers.length == 1 ? 'Lehrkraft' : 'Lehrkräfte',
+      entries: entries,
+    );
+  }
+
+  static Widget _listTileWithSubs({
+    required IconData icon,
+    required String label,
+    required List<({String main, String? sub})> entries,
+    Widget? trailing,
+  }) {
+    if (entries.length == 1) {
+      final e = entries.first;
+      return ListTile(
+        leading: Icon(icon),
+        title: Text('$label: ${e.main}'),
+        subtitle: e.sub != null ? Text(e.sub!) : null,
+        trailing: trailing,
+      );
+    }
+    return ListTile(
+      leading: Icon(icon),
+      title: Text(label),
+      subtitle: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: entries
+            .expand<Widget>(
+              (e) => [
+                Text(e.main),
+                if (e.sub != null)
+                  Padding(
+                    padding: const EdgeInsets.only(left: 12),
+                    child: Text(e.sub!),
+                  ),
+              ],
+            )
+            .toList(),
+      ),
+      trailing: trailing,
+    );
+  }
+
+  static Widget _listTile({
+    required IconData icon,
+    required String label,
+    required List<String> entries,
+    Widget? trailing,
+  }) {
+    if (entries.length == 1) {
+      return ListTile(
+        leading: Icon(icon),
+        title: Text('$label: ${entries.first}'),
+        trailing: trailing,
+      );
+    }
+    return ListTile(
+      leading: Icon(icon),
+      title: Text(label),
+      subtitle: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: entries.map<Widget>(Text.new).toList(),
+      ),
+      trailing: trailing,
+    );
+  }
+
+  static List<Widget> _optionalTextTiles(McTimetableEntry lesson) {
+    return <Widget?>[
+      _textTile(Icons.info_outline, 'Info', lesson.infoText),
+      _textTile(Icons.swap_horiz, 'Vertretungstext', lesson.substitutionText),
+      _textTile(Icons.subject, 'Stundentext', lesson.lessonText),
+      _textTile(
+        Icons.category_outlined,
+        'Stundentyp',
+        _lessonTypeLabel(lesson.lessonType),
+      ),
+    ].whereType<Widget>().toList();
+  }
+
+  /// Marianum-Connect liefert den Stundentyp immer (Default `LESSON`). Den
+  /// Standard blenden wir aus — sonst stünde unter jeder regulären Stunde
+  /// derselbe Eintrag. Sonderfälle bekommen einen deutschen Klartext.
+  static String? _lessonTypeLabel(String type) {
+    switch (type) {
+      case 'LESSON':
+        return null;
+      case 'OFFICE_HOUR':
+        return 'Sprechstunde';
+      case 'STANDBY':
+        return 'Bereitschaft';
+      case 'BREAK_SUPERVISION':
+        return 'Pausenaufsicht';
+      case 'EXAM':
+        return 'Prüfung';
+      default:
+        return type;
+    }
+  }
+
+  static Widget? _textTile(IconData icon, String label, String? value) {
+    final text = (value ?? '').trim();
+    if (text.isEmpty || text == '-') return null;
+    return ListTile(
+      leading: Icon(icon),
+      title: Text(label),
+      subtitle: Text(text),
+    );
+  }
+
+  static String _line(String name, {String? longname, String? extra}) {
+    final parts = <String>[if (name.isNotEmpty) name else '?'];
+    final ln = (longname ?? '').trim();
+    if (ln.isNotEmpty && ln != name) parts.add('($ln)');
+    final ex = (extra ?? '').trim();
+    if (ex.isNotEmpty) parts.add('· $ex');
+    return parts.join(' ');
+  }
+
+  static String? _subjectLongName(dynamic subjects, String shortName) {
+    if (subjects == null) return null;
+    final list = subjects.result as Iterable<dynamic>;
+    for (final s in list) {
+      if (s.shortName == shortName) return s.longName as String?;
+    }
+    return null;
+  }
+
+  static IconData _iconForStatus(String status) {
+    switch (status) {
+      case 'CANCELLED':
+        return Icons.event_busy_outlined;
+      case 'IRREGULAR':
+        return Icons.swap_horiz;
+      default:
+        return Icons.school_outlined;
+    }
+  }
+
+  static String _statusLabel(String status) {
+    switch (status) {
+      case 'CANCELLED':
+        return 'Entfällt';
+      case 'IRREGULAR':
+        return 'Geändert';
+      default:
+        return 'Regulär';
+    }
+  }
+
+  static String _statusPrefix(String status) {
+    switch (status) {
+      case 'CANCELLED':
+        return 'Entfällt: ';
+      case 'IRREGULAR':
+        return 'Änderung: ';
+      default:
+        return '';
+    }
+  }
+}

lib/view/pages/timetable/details/webuntis_lesson_sheet.dart

@@ -1,244 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:syncfusion_flutter_calendar/calendar.dart';
-
-import '../../../../api/webuntis/queries/get_timetable/get_timetable_response.dart';
-import '../../../../api/webuntis/services/lesson_resolver.dart';
-import '../../../../extensions/date_time.dart';
-import '../../../../extensions/text.dart';
-import '../../../../routing/app_routes.dart';
-import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
-import '../../../../state/app/modules/timetable/bloc/timetable_state.dart';
-import '../../../../widget/debug/debug_tile.dart';
-import '../../../../widget/details_bottom_sheet.dart';
-
-class WebuntisLessonSheet {
-  static void show(
-    BuildContext context,
-    TimetableBloc bloc,
-    Appointment appointment,
-    GetTimetableResponseObject lesson,
-  ) {
-    final state = bloc.state.data;
-    if (state == null) return;
-
-    final headerSubject = LessonResolver.resolveSubject(
-      state,
-      lesson.su.firstOrNull?.id,
-    );
-    final headerTitle = firstNonEmpty([
-      headerSubject.alternateName,
-      headerSubject.name,
-      headerSubject.longName,
-      '?',
-    ]);
-    final headerLongName =
-        headerSubject.longName.isNotEmpty &&
-            headerSubject.longName != headerTitle
-        ? headerSubject.longName
-        : '';
-
-    final timeRange = appointment.startTime.timeRangeTo(appointment.endTime);
-
-    showDetailsBottomSheet(
-      context,
-      header: ListTile(
-        leading: Icon(LessonFormatter.iconForCode(lesson.code), size: 32),
-        title: Text(
-          '${LessonFormatter.codePrefix(lesson.code)}$headerTitle',
-          style: const TextStyle(fontWeight: FontWeight.bold),
-        ),
-        subtitle: Text(
-          headerLongName.isNotEmpty ? '$timeRange\n$headerLongName' : timeRange,
-        ),
-        isThreeLine: headerLongName.isNotEmpty,
-      ),
-      children: (_) => <Widget>[
-        ListTile(
-          leading: const Icon(Icons.notifications_active),
-          title: Text('Status: ${LessonFormatter.statusLabel(lesson.code)}'),
-        ),
-        if (lesson.su.length > 1)
-          _listTile(
-            icon: Icons.book_outlined,
-            label: 'Fächer',
-            entries: lesson.su.map((s) {
-              final resolved = LessonResolver.resolveSubject(state, s.id);
-              return LessonFormatter.formatLine(
-                firstNonEmpty([resolved.name, s.name, '?']),
-                longname: firstNonEmpty([resolved.longName, s.longname, '']),
-              );
-            }).toList(),
-          ),
-        _roomTile(context, state, lesson),
-        _teacherTile(lesson),
-        if ((lesson.activityType ?? '').trim().isNotEmpty)
-          ListTile(
-            leading: const Icon(Icons.abc),
-            title: Text('Typ: ${lesson.activityType}'),
-          ),
-        if (lesson.kl.isNotEmpty)
-          _listTile(
-            icon: Icons.people,
-            label: lesson.kl.length == 1 ? 'Klasse' : 'Klassen',
-            entries: lesson.kl
-                .map(
-                  (k) => LessonFormatter.formatLine(
-                    k.name.isNotEmpty ? k.name : '?',
-                    longname: k.longname,
-                  ),
-                )
-                .toList(),
-          ),
-        ..._optionalTextTiles(lesson),
-        DebugTile(context).jsonData(lesson.toJson()),
-      ],
-    );
-  }
-
-  static Widget _roomTile(
-    BuildContext context,
-    TimetableState state,
-    GetTimetableResponseObject lesson,
-  ) {
-    final trailing = IconButton(
-      icon: const Icon(Icons.house_outlined),
-      onPressed: () => AppRoutes.openRoomplan(context),
-    );
-
-    if (lesson.ro.isEmpty) {
-      return ListTile(
-        leading: const Icon(Icons.room),
-        title: const Text('Raum: ?'),
-        trailing: trailing,
-      );
-    }
-
-    final entries = lesson.ro.map((r) {
-      final resolved = LessonResolver.resolveRoom(state, r.id);
-      final name = firstNonEmpty([resolved.name, r.name, '?']);
-      final longname = firstNonEmpty([resolved.longName, r.longname, '']);
-      final building = resolved.building.trim();
-      final main = LessonFormatter.formatLine(
-        name,
-        extra: (building.isNotEmpty && building != '?') ? building : null,
-      );
-      final sub = (longname.isNotEmpty && longname != name) ? longname : null;
-      return (main: main, sub: sub);
-    }).toList();
-
-    return _listTileWithSubs(
-      icon: Icons.room,
-      label: lesson.ro.length == 1 ? 'Raum' : 'Räume',
-      entries: entries,
-      trailing: trailing,
-    );
-  }
-
-  static Widget _teacherTile(GetTimetableResponseObject lesson) {
-    if (lesson.te.isEmpty) {
-      return const ListTile(
-        leading: Icon(Icons.person),
-        title: Text('Lehrkraft: ?'),
-      );
-    }
-
-    final entries = lesson.te.map((t) {
-      final main = LessonFormatter.formatLine(
-        t.name.isNotEmpty ? t.name : '?',
-        longname: t.longname,
-      );
-      final orgname = (t.orgname ?? '').trim();
-      return (main: main, sub: orgname.isEmpty ? null : 'ehemals $orgname');
-    }).toList();
-
-    return _listTileWithSubs(
-      icon: Icons.person,
-      label: lesson.te.length == 1 ? 'Lehrkraft' : 'Lehrkräfte',
-      entries: entries,
-    );
-  }
-
-  static Widget _listTileWithSubs({
-    required IconData icon,
-    required String label,
-    required List<({String main, String? sub})> entries,
-    Widget? trailing,
-  }) {
-    if (entries.length == 1) {
-      final e = entries.first;
-      return ListTile(
-        leading: Icon(icon),
-        title: Text('$label: ${e.main}'),
-        subtitle: e.sub != null ? Text(e.sub!) : null,
-        trailing: trailing,
-      );
-    }
-    return ListTile(
-      leading: Icon(icon),
-      title: Text(label),
-      subtitle: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: entries
-            .expand<Widget>(
-              (e) => [
-                Text(e.main),
-                if (e.sub != null)
-                  Padding(
-                    padding: const EdgeInsets.only(left: 12),
-                    child: Text(e.sub!),
-                  ),
-              ],
-            )
-            .toList(),
-      ),
-      trailing: trailing,
-    );
-  }
-
-  static Widget _listTile({
-    required IconData icon,
-    required String label,
-    required List<String> entries,
-    Widget? trailing,
-  }) {
-    if (entries.length == 1) {
-      return ListTile(
-        leading: Icon(icon),
-        title: Text('$label: ${entries.first}'),
-        trailing: trailing,
-      );
-    }
-    return ListTile(
-      leading: Icon(icon),
-      title: Text(label),
-      subtitle: Column(
-        crossAxisAlignment: CrossAxisAlignment.start,
-        children: entries.map<Widget>(Text.new).toList(),
-      ),
-      trailing: trailing,
-    );
-  }
-
-  static List<Widget> _optionalTextTiles(GetTimetableResponseObject lesson) {
-    return <Widget?>[
-      _textTile(Icons.info_outline, 'Info', lesson.info),
-      _textTile(Icons.swap_horiz, 'Vertretungstext', lesson.substText),
-      _textTile(Icons.subject, 'Stundentext', lesson.lstext),
-      _textTile(Icons.category_outlined, 'Stundentyp', lesson.lstype),
-      _textTile(Icons.flag_outlined, 'Statusmerkmale', lesson.statflags),
-      _textTile(Icons.school_outlined, 'Lerngruppe', lesson.sg),
-      _textTile(Icons.bookmark_outline, 'Buchungshinweis', lesson.bkRemark),
-      _textTile(Icons.notes, 'Buchungstext', lesson.bkText),
-    ].whereType<Widget>().toList();
-  }
-
-  static Widget? _textTile(IconData icon, String label, String? value) {
-    final text = (value ?? '').trim();
-    if (text.isEmpty || text == '-') return null;
-    return ListTile(
-      leading: Icon(icon),
-      title: Text(label),
-      subtitle: Text(text),
-    );
-  }
-}

lib/view/pages/timetable/timetable.dart

@@ -13,7 +13,6 @@ import 'custom_events/custom_event_edit_dialog.dart';
 import 'data/arbitrary_appointment.dart';
 import 'data/lesson_period_schedule.dart';
 import 'data/timetable_appointment_factory.dart';
-import 'data/webuntis_time.dart';
 import 'details/appointment_details_dispatcher.dart';
 import 'widgets/custom_workweek_calendar.dart';
 import 'widgets/special_regions_builder.dart';
@@ -70,8 +69,7 @@ class _TimetableState extends State<Timetable> {
     return _cachedAppointments = TimetableAppointmentFactory(
       lessons: state.getAllKnownLessons().toList(),
       customEvents: state.customEvents?.events ?? const [],
-      rooms: state.rooms!,
-      subjects: state.subjects!,
+      subjects: state.subjects?.result ?? const [],
       settings: timetableSettings,
       now: DateTime.now(),
     ).build();
@@ -79,7 +77,7 @@ class _TimetableState extends State<Timetable> {
 
   bool _isCrossedOut(Appointment appointment) {
     final id = appointment.id;
-    if (id is WebuntisAppointment) return id.lesson.code == 'cancelled';
+    if (id is LessonAppointment) return id.entry.status == 'CANCELLED';
     return false;
   }
 
@@ -123,6 +121,13 @@ class _TimetableState extends State<Timetable> {
         ],
       ),
       body: LoadableStateConsumer<TimetableBloc, TimetableState>(
+        // Without this predicate the consumer treats the freshly-initialised
+        // empty TimetableState as "has content" and only shows the error bar
+        // on top — but `_calendar` collapses to `SizedBox.shrink()` while the
+        // reference data is missing, leaving the user with a blank screen.
+        // Telling the consumer that "ready" means having reference data
+        // flips it into the proper error-screen path instead.
+        isReady: (state) => state.hasReferenceData,
         child: (state, _) => _calendar(state, bloc),
       ),
     );
@@ -192,12 +197,12 @@ class _TimetableState extends State<Timetable> {
   /// `_mondayOf()` correctly walks back to the Monday of its own week,
   /// which is the last fully-allowed week.
   (DateTime, DateTime) _scrollBounds(TimetableState state) {
-    final year = state.schoolyear?.result;
+    final year = state.schoolyear;
     final DateTime baseMin;
     final DateTime baseMax;
     if (year != null) {
-      baseMin = WebuntisTime.parse(year.startDate, 0);
-      baseMax = WebuntisTime.parse(year.endDate, 0);
+      baseMin = year.startDate;
+      baseMax = year.endDate;
     } else {
       final now = DateTime.now();
       baseMin = now.subtractDays(14);

lib/view/pages/timetable/widgets/calendar/outside_chips.dart

@@ -38,7 +38,10 @@ class _OutsideHoursStrip extends StatelessWidget {
         (maxChipsPerDay > 1 ? (maxChipsPerDay - 1) * kOutsideChipSpacing : 0);
 
     return Container(
-      color: theme.colorScheme.surfaceContainerLowest,
+      // Scaffold-Background, damit die Ganztagestermine-Leiste optisch nahtlos
+      // an Header und Stundenplan-Hintergrund anschließt; surfaceContainerLowest
+      // ist in M3-Light reinweiß und sticht gegen die getönte Seed-Surface ab.
+      color: theme.scaffoldBackgroundColor,
       padding: const EdgeInsets.symmetric(
         vertical: kOutsideStripVerticalPadding,
       ),

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

@@ -1,15 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:syncfusion_flutter_calendar/calendar.dart';
 
-import '../../../../api/webuntis/queries/get_holidays/get_holidays_response.dart';
+import '../../../../api/marianumconnect/queries/timetable_get_holidays/timetable_get_holidays_response.dart';
 import '../../../../extensions/date_time.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 TimetableGetHolidaysResponse holidays;
   final LessonPeriodSchedule schedule;
   final ColorScheme colorScheme;
   final Color disabledColor;
@@ -59,14 +58,22 @@ class SpecialRegionsBuilder {
   static String _dayKey(DateTime d) => '${d.year}-${d.month}-${d.day}';
 
   Iterable<TimeRegion> _buildHolidayRegions() {
-    // Multiple Webuntis holiday entries can cover the same day (e.g. a
-    // public holiday falling inside a vacation period). Collapse them
-    // per-day so we emit exactly one TimeRegion per day and the
-    // overlapping labels don't render on top of each other.
+    // Multiple holiday entries can cover the same day (e.g. a public holiday
+    // falling inside a vacation period). Collapse them per-day so we emit
+    // exactly one TimeRegion per day and the overlapping labels don't render
+    // on top of each other.
     final byDay = <String, _HolidayDay>{};
     for (final holiday in holidays.result) {
-      final startDay = WebuntisTime.parse(holiday.startDate, 0);
-      final endDay = WebuntisTime.parse(holiday.endDate, 0);
+      final startDay = DateTime(
+        holiday.startDate.year,
+        holiday.startDate.month,
+        holiday.startDate.day,
+      );
+      final endDay = DateTime(
+        holiday.endDate.year,
+        holiday.endDate.month,
+        holiday.endDate.day,
+      );
       // Webuntis treats endDate inclusively (last day of the break) — the
       // `+ 1` covers single-day public holidays (where startDate == endDate)
       // and the final day of a multi-day vacation, both of which would
@@ -76,7 +83,7 @@ class SpecialRegionsBuilder {
         final day = startDay.addDays(i);
         final key = _dayKey(day);
         byDay.putIfAbsent(key, () => _HolidayDay(day, [])).names.add(
-          holiday.name,
+          holiday.shortName,
         );
       }
     }

lib/widget/details_bottom_sheet.dart

@@ -16,7 +16,12 @@ void showDetailsBottomSheet(
     useSafeArea: true,
     builder: (sheetContext) => SafeArea(
       child: SingleChildScrollView(
-        padding: const EdgeInsets.only(bottom: 16),
+        // Sheets können TextFields enthalten (z.B. Endpoint-Picker); ohne den
+        // viewInsets-Offset schiebt sich das Eingabefeld bei aktiver Tastatur
+        // unter die Tastatur statt darüber zu bleiben.
+        padding: EdgeInsets.only(
+          bottom: 16 + MediaQuery.viewInsetsOf(sheetContext).bottom,
+        ),
         child: Column(
           mainAxisSize: MainAxisSize.min,
           crossAxisAlignment: CrossAxisAlignment.stretch,

lib/widget_data/widget_data.dart

@@ -14,6 +14,10 @@ enum WidgetLessonStatus {
   irregular,
   teacherChanged,
   event,
+  // Sonder-Lesson-Types (Aufsicht, Sprechstunde, …) — Native-Widget-Renderer,
+  // die den Status noch nicht kennen, fallen still auf den regulären Stil
+  // zurück, sobald der String dort unbekannt ist.
+  duty,
 }
 
 @freezed