Extend substitution fuctionality

1. Enter and take into account (longer) absences of teachers:

• Person x is absent from y to z → Define absences (this is already planned in Kolego (https://edugit.org/AlekSIS/onboarding/aleksis-app-kolego/-/issues/1) → check whether it can be used)
  • Enable self-registration by employees?
  • Overview with all days; then a to-do list per day with hours to cover, generated from absences

2. Substitute pool/on-call times

• Teachers are available on certain days, so they are prioritized compared to other teachers regarding the completion of substitute hours
  • Enter on-call hours for individual teachers
  • Priority system when selecting substitute teacher for one hour with assistance function: Prioritize on-call teachers, teachers with hours before/after the lesson to be substituted, free teachers, teachers with fitting subjects → Develop constraint system that calculates a ranked list of fitting teachers for a specific lesson in need of a substitution

3. Notifications for teachers with substitutions

• Maybe allow teachers to confirm a substitution assigned to them via email/SMS notification
• Scheduling notifications is already possible → Create a notification time in iCal; then central evaluation, creation and sending of notifications
  • Issue with details: #209 (closed)

added source::customer::fss label

about 2: use Free/Busy model

Continued in separated issues: #223 #224 (closed) #225 (closed)

closed