urbit/pkg/arvo/lib/group.hoon
2021-01-28 16:13:57 +10:00

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/- *group
/+ store=group-store, resource
::
|_ =bowl:gall
+$ card card:agent:gall
++ scry-for
|* [=mold =path]
=. path
(snoc path %noun)
.^ mold
%gx
(scot %p our.bowl)
%group-store
(scot %da now.bowl)
path
==
++ scry-tag
|= [rid=resource =tag]
^- (unit (set ship))
=/ group
(scry-group rid)
?~ group
~
`(~(gut by tags.u.group) tag ~)
::
++ scry-group
|= rid=resource
%+ scry-for ,(unit group)
`path`groups+(en-path:resource rid)
::
++ members
|= rid=resource
=; =group
members.group
(fall (scry-group rid) *group)
::
++ is-member
|= [=ship group=resource]
^- ?
=- (~(has in -) ship)
(members group)
::
++ is-admin
|= [=ship group=resource]
^- ?
=/ tags tags:(fall (scry-group group) *^group)
=/ admins=(set ^ship) (~(gut by tags) %admin ~)
(~(has in admins) ship)
:: +role-for-ship: get role for user
::
:: Returns ~ if no such group exists or user is not
:: a member of the group. Returns [~ ~] if the user
:: is a member with no additional role.
++ role-for-ship
|= [rid=resource =ship]
^- (unit (unit role-tag))
=/ grp=(unit group)
(scry-group rid)
?~ grp ~
=* group u.grp
=* policy policy.group
=* tags tags.group
=/ admins=(set ^ship)
(~(gut by tags) %admin ~)
?: (~(has in admins) ship)
``%admin
=/ mods
(~(gut by tags) %moderator ~)
?: (~(has in mods) ship)
``%moderator
=/ janitors
(~(gut by tags) %janitor ~)
?: (~(has in janitors) ship)
``%janitor
?: (~(has in members.group) ship)
[~ ~]
~
::
++ can-join
|= [rid=resource =ship]
%+ scry-for ,?
^- path
:- %groups
(weld (en-path:resource rid) /join/(scot %p ship))
::
++ is-managed
|= rid=resource
=/ group=(unit group)
(scry-group rid)
?~ group %.n
!hidden.u.group
::
--