The due date isn't autofilled anymore, if the lesson is not in the timetable

[nilsreichardt]

Describe the bug

If a course is not present in the timetable, the autofill for the due date of the homework doesn't work anymore.

Steps to reproduce the bug

1. Go to the homework tab
2. Click "Create homework"
3. Select a course that is not in the timetable

Current broken behavior

No due date is autofilled.

Expected behavior

In previous versions, if the course is not present in the timetable, we just used the next day as a due date.

Screenshots, videos or logs

v.mp4

Tested device

• Device: MacBook Pro M1

• OS: macOS 13.6

• App type: macOS

• App version: Alpha 1.7.9 (600), 90d4bd3

Additional context

cc: @Jonas-Sander

Possible solution

[Jonas-Sander]

In previous versions, if the course is not present in the timetable, we just used the next day as a due date.

Was it the next day (tomorrow) or the next school day? (So if tomorrow is the weekend or the next days are holidays they are skipped)

[Jonas-Sander]

https://github.com/SharezoneApp/sharezone-app/blob/3ae53ff39e3021c031e60aa9661ee3d76a313690/app/lib/blocs/homework/homework_dialog_bloc.dart#L175C1-L187C4

  static DateTime _getSeedTodoUntilDate() {
    DateTime now =
        DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day);
    if (DateTime.now().weekday == DateTime.friday ||
        DateTime.now().weekday == DateTime.saturday) {
      DateTime monday = now.add(
          Duration(days: DateTime.now().weekday == DateTime.friday ? 3 : 2));
      return monday;
    } else {
      DateTime tomorrow = now.add(const Duration(days: 1));
      return tomorrow;
    }
  }

This seems to be the algorithm