Adds a check for changing an existing guest user's role before
calling do_update_user in the case that a realm has a current
paid plan with manual license management.
In addition to checking for available licenses in the current
billing period when adding or inviting new non-guest users, for
manual billing, we also verify that the number of licenses set
for the next billing period will be enough when adding/inviting
new users.
Realms that are exempt from license number checks do not have
this restriction applied.
Admins are notified via group direct message when a user fails
to register due to this restriction.
Prep commit for expanding these checks for the number of licenses
set for the next billing period (renewal licenses) and for changing
guest users' roles.
Earlier, when adding a new user failed due to no spare licenses
available, a message was sent to the "New user announcements"
stream.
We plan to disable the stream by default as a part of improving
onboarding experience.
Now, we send a group DM to admins when adding a new user fails
due to no spare licenses available. It makes it independent of
the "New user announcements" setting. These warning messages
are important and shouldn't be missed.
Our seat count calculation is different for guest user than normal users
(a number of initial guests are free, and additional marginal guests are
worth 1/5 of a seat) - so these checks we apply when a user is being
invited or signing up need to know whether it's a guest or non-guest
being added.
Lauryn Menard
Anders Kaseorg
Prakhar Pratyush
Mateusz Mandera
Vishnu KS