urbit/pkg/arvo/app/group-store.hoon

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:: group-store: data store for groups of ships
::
/- *group-store
/+ default-agent, verb, dbug
|%
+$ card card:agent:gall
::
+$ versioned-state
$% state-zero
==
::
+$ state-zero
$: %0
=groups
==
::
+$ diff [%group-update group-update]
--
::
=| state-zero
=* state -
::
%- agent:dbug
%+ verb |
^- agent:gall
=<
|_ =bowl:gall
+* this .
group-core +>
gc ~(. group-core bowl)
def ~(. (default-agent this %|) bowl)
::
++ on-init on-init:def
++ on-save !>(state)
++ on-load
|= old=vase
`this(state !<(state-zero old))
::
++ on-poke
|= [=mark =vase]
^- (quip card _this)
?> (team:title our.bowl src.bowl)
=^ cards state
?: ?=(%group-action mark)
(poke-group-action:gc !<(group-action vase))
(on-poke:def mark vase)
[cards this]
::
++ on-watch
|= =path
^- (quip card _this)
?> (team:title our.bowl src.bowl)
|^
=/ cards=(list card)
?+ path (on-watch:def path)
[%all ~] (give %group-update !>([%initial groups]))
[%updates ~] ~
[%keys ~] (give %group-update !>([%keys ~(key by groups)]))
[%group *]
(give %group-update !>([%path (~(got by groups) t.path) t.path]))
==
[cards this]
::
++ give
|= =cage
^- (list card)
[%give %fact ~ cage]~
--
::
++ on-leave on-leave:def
::
++ on-peek
|= =path
^- (unit (unit cage))
?+ path (on-peek:def path)
[%x *] ``noun+!>((~(get by groups) t.path))
==
::
++ on-agent on-agent:def
++ on-arvo on-arvo:def
++ on-fail on-fail:def
--
::
|_ bol=bowl:gall
::
++ poke-group-action
|= action=group-action
^- (quip card _state)
?> (team:title our.bol src.bol)
?- -.action
%add (handle-add action)
%remove (handle-remove action)
%bundle (handle-bundle action)
%unbundle (handle-unbundle action)
==
::
++ handle-add
|= act=group-action
^- (quip card _state)
?> ?=(%add -.act)
?~ pax.act
[~ state]
?. (~(has by groups) pax.act)
[~ state]
=/ members (~(got by groups) pax.act)
=. members (~(uni in members) members.act)
?: =(members (~(got by groups) pax.act))
[~ state]
:- (send-diff pax.act act)
state(groups (~(put by groups) pax.act members))
::
++ handle-remove
|= act=group-action
^- (quip card _state)
?> ?=(%remove -.act)
?~ pax.act
[~ state]
?. (~(has by groups) pax.act)
[~ state]
=/ members (~(got by groups) pax.act)
=. members (~(dif in members) members.act)
?: =(members (~(got by groups) pax.act))
[~ state]
:- (send-diff pax.act act)
state(groups (~(put by groups) pax.act members))
::
++ handle-bundle
|= act=group-action
^- (quip card _state)
?> ?=(%bundle -.act)
?~ pax.act
[~ state]
?: (~(has by groups) pax.act)
[~ state]
:- (send-diff pax.act act)
state(groups (~(put by groups) pax.act *group))
::
++ handle-unbundle
|= act=group-action
^- (quip card _state)
?> ?=(%unbundle -.act)
?~ pax.act
[~ state]
?. (~(has by groups) pax.act)
[~ state]
:- (send-diff pax.act act)
state(groups (~(del by groups) pax.act))
::
++ update-subscribers
|= [pax=path act=group-action]
^- (list card)
[%give %fact ~[pax] %group-update !>(act)]~
::
++ send-diff
|= [pax=path act=group-action]
^- (list card)
%- zing
:~ (update-subscribers /all act)
(update-subscribers /updates act)
(update-subscribers [%group pax] act)
?. |(=(%bundle -.act) =(%unbundle -.act))
~
(update-subscribers /keys act)
==
::
--