Automatically give penalty when payment is overdue

[itsisak]

Currently this checks every day at 2100 if there is any events with overdue payments. If so it gives penalty to the users who have not paid, unregisters them from the event and sends notification.

This is a first draft of the consept. Future improvements should be to check if they paid after the set deadline, not just at 2100. Also the notification to the event creator could be removed if this is solution is satisfactory.

Also im not married to the names like event_payment_overdue_penalty i will try to think of some better, but it is conflicting with the currently existing payment_overdue functionalities (which is more like payment_due)

Resolves ABA-30

[codecov]

Codecov Report

Attention: Patch coverage is 95.71429% with 3 lines in your changes missing coverage. Please review.

Project coverage is 89.13%. Comparing base (d49dca9) to head (192746f).
Report is 29 commits behind head on master.

Files with missing lines	Patch %	Lines
lego/apps/events/notifications.py	62.50%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3646      +/-   ##
==========================================
+ Coverage   89.11%   89.13%   +0.02%     
==========================================
  Files         682      683       +1     
  Lines       21464    21533      +69     
==========================================
+ Hits        19128    19194      +66     
- Misses       2336     2339       +3     

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[linear]

ABA-30 Automatically give a prikk to everyone who has not payed for an event after the payment deadline has passed

[jonasdeluna]

Nice!

[eikhr]

@itsisak I think a good first iteration to make this mergable without too much work would be the following:

• add a field bumped_at to registrations
• prikk script runs once a day, giving prikk to every person who has not payed after the deadline (and has not already gotten prikk or been bumped in the last 24h)
• when someone is awarded a prikk, a flag is set on the registration so that we know they have already gotten the payment prikk
• On the event attendees admin page, this "prikk"-status is shown, so that Arrkom can easily check who has gotten prikk