Refactor codebase resolving warnings and remove self-package imports

lib/model/timetable/timetableProps.dart

@@ -0,0 +1,108 @@
+import 'package:intl/intl.dart';
+
+import '../../api/apiResponse.dart';
+import '../../api/webuntis/queries/getHolidays/getHolidaysCache.dart';
+import '../../api/webuntis/queries/getHolidays/getHolidaysResponse.dart';
+import '../../api/webuntis/queries/getRooms/getRoomsCache.dart';
+import '../../api/webuntis/queries/getRooms/getRoomsResponse.dart';
+import '../../api/webuntis/queries/getSubjects/getSubjectsCache.dart';
+import '../../api/webuntis/queries/getSubjects/getSubjectsResponse.dart';
+import '../../api/webuntis/queries/getTimetable/getTimetableCache.dart';
+import '../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
+import '../../api/webuntis/webuntisError.dart';
+import '../dataHolder.dart';
+
+extension DateTimeExtension on DateTime {
+  DateTime jumpToNextWeekDay(int day) {
+    return add(
+      Duration(
+        days: (day - weekday) % DateTime.daysPerWeek,
+      ),
+    );
+  }
+}
+
+class TimetableProps extends DataHolder {
+  final _queryWeek = DateTime.now().add(const Duration(days: 2));
+
+  late DateTime startDate = getDate(_queryWeek.subtract(Duration(days: _queryWeek.weekday - 1)));
+  late DateTime endDate = getDate(_queryWeek.add(Duration(days: DateTime.daysPerWeek - _queryWeek.weekday)));
+
+  GetTimetableResponse? _getTimetableResponse;
+  GetTimetableResponse get getTimetableResponse => _getTimetableResponse!; //TODO failed null check when no cache
+
+  GetRoomsResponse? _getRoomsResponse;
+  GetRoomsResponse get getRoomsResponse => _getRoomsResponse!;
+
+  GetSubjectsResponse? _getSubjectsResponse;
+  GetSubjectsResponse get getSubjectsResponse => _getSubjectsResponse!;
+
+  GetHolidaysResponse? _getHolidaysResponse;
+  GetHolidaysResponse get getHolidaysResponse => _getHolidaysResponse!;
+
+  WebuntisError? error;
+  WebuntisError? get getError => error;
+  bool get hasError => error != null;
+
+  @override
+  List<ApiResponse?> properties() {
+    return [_getTimetableResponse, _getRoomsResponse, _getSubjectsResponse, _getHolidaysResponse];
+  }
+
+  @override
+  void run() {
+    GetTimetableCache(
+      startdate: int.parse(DateFormat("yyyyMMdd").format(startDate)),
+      enddate: int.parse(DateFormat("yyyyMMdd").format(endDate)),
+      onUpdate: (GetTimetableResponse data) => {
+        _getTimetableResponse = data,
+        notifyListeners(),
+      },
+      onError: (Exception e) => {
+        error = e as WebuntisError?,
+        notifyListeners(),
+      }
+    );
+
+    GetRoomsCache(
+        onUpdate: (GetRoomsResponse data) => {
+          _getRoomsResponse = data,
+          notifyListeners(),
+        }
+    );
+
+    GetSubjectsCache(
+        onUpdate: (GetSubjectsResponse data) => {
+          _getSubjectsResponse = data,
+          notifyListeners(),
+        }
+    );
+
+    GetHolidaysCache(
+      onUpdate: (GetHolidaysResponse data) => {
+        _getHolidaysResponse = data,
+        notifyListeners(),
+      }
+    );
+  }
+
+  DateTime getDate(DateTime d) => DateTime(d.year, d.month, d.day);
+
+  bool isWeekend(DateTime queryDate) {
+    return queryDate.weekday == DateTime.saturday || queryDate.weekday == DateTime.sunday;
+  }
+
+  void updateWeek(DateTime start, DateTime end) {
+    properties().forEach((element) => element = null);
+    error = null;
+    notifyListeners();
+    startDate = start.subtract(const Duration(days: 7));
+    endDate = end.add(const Duration(days: 7));
+    try {
+      run();
+    } on WebuntisError catch(e) {
+      error = e;
+      notifyListeners();
+    }
+  }
+}