shrub/pkg/arvo/ted/group/on-leave.hoon

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/- spider, grp=group-store, gra=graph-store, met=metadata-store
/+ strandio, res=resource
::
=* strand strand:spider
=* raw-poke raw-poke:strandio
=* raw-poke-our raw-poke-our:strandio
=* scry scry:strandio
::
^- thread:spider
|= arg=vase
=/ m (strand ,vase)
^- form:m
=+ !<([~ =update:grp] arg)
?. ?=(%remove-group -.update)
(pure:m !>(~))
;< =bowl:spider bind:m get-bowl:strandio
:: tell group host to remove us as member
::
;< ~ bind:m
%+ raw-poke
[entity.resource.update %group-push-hook]
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:- %group-update-0
!> ^- update:grp
[%remove-members resource.update (silt [our.bowl ~])]
:: stop serving or syncing group updates
::
;< ~ bind:m
%+ raw-poke
[our.bowl %group-push-hook]
:- %push-hook-action
!>([%remove resource.update])
;< ~ bind:m
%+ raw-poke
[our.bowl %group-pull-hook]
:- %pull-hook-action
!>([%remove resource.update])
:: stop serving or syncing metadata associated with group
::
;< ~ bind:m
%- raw-poke-our
?: =(our.bowl entity.resource.update)
:- %metadata-push-hook
push-hook-action+!>([%remove resource.update])
:- %metadata-pull-hook
pull-hook-action+!>([%remove resource.update])
;< =associations:met bind:m
%+ scry associations:met
;: weld
/gx/metadata-store/group
(en-path:res resource.update)
/noun
==
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=/ entries=(list [m=md-resource:met g=resource:res *])
~(tap by associations)
|- ^- form:m
=* loop $
?~ entries
(pure:m !>(~))
:: remove metadata associated with group
::
;< ~ bind:m
%+ raw-poke
[our.bowl %metadata-store]
:- %metadata-action
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!> ^- action:met
[%remove g.i.entries m.i.entries]
:: archive graph associated with group
::
=* app-resource resource.m.i.entries
;< ~ bind:m
%+ raw-poke
[our.bowl %graph-store]
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:- %graph-update-0
!> ^- update:gra
[%0 now.bowl [%archive-graph app-resource]]
;< ~ bind:m
%+ raw-poke
[our.bowl %graph-pull-hook]
:- %pull-hook-action
!>([%remove app-resource])
loop(entries t.entries)