Dynamic Length of Stay

There is something I am doing manually and it would be great to have it automated:

12 months before the checkin: Minimum lenght 7 days;

10 months before the checkin: Minimum lenght 6 days;

08 months before the checkin: Minimum lenght 5 days;

From here, gap nights would have flexible lenght of stay;

06 months before the checkin: Minimum lenght 4 days;

etc….

This would be a nice to have feature and customizable it would be even better. The calendar would automatically reduce the minimum length of stay requirement every day.