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

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:: metadata-store [landscape]:
::
:: data store for application metadata and mappings
:: between groups and resources within applications
::
:: group-paths are expected to be an existing group path
:: resources are expected to correspond to existing app paths
::
:: note: when scrying for metadata, to make the arguments safe in paths,
:: encode group-path and app-path using (scot %t (spat group-path))
::
:: +watch paths:
:: /all associations + updates
:: /updates just updates
:: /app-name/%app-name specific app's associations + updates
::
:: +peek paths:
:: /associations all associations
:: /group-indices all group indices
:: /app-indices all app indices
:: /resource-indices all resource indices
:: /metadata/%group-path/%app-name/%app-path specific metadatum
:: /app-name/%app-name associations for app
:: /group/%group-path associations for group
::
/- *metadata-store, *metadata-hook
/+ *metadata-json, default-agent, verb, dbug, resource, *migrate
|%
+$ card card:agent:gall
+$ base-state-0
$: associations=associations-0
group-indices=(jug group-path md-resource)
app-indices=(jug app-name [group-path app-path])
resource-indices=(jug md-resource group-path)
==
::
+$ associations-0 (map [group-path md-resource] metadata-0)
::
+$ metadata-0
$: title=@t
description=@t
color=@ux
date-created=@da
creator=@p
==
::
+$ base-state-1
$: associations=associations
group-indices=(jug group-path md-resource)
app-indices=(jug app-name [group-path app-path])
resource-indices=(jug md-resource group-path)
==
::
+$ state-0 [%0 base-state-0]
+$ state-1 [%1 base-state-0]
+$ state-2 [%2 base-state-0]
+$ state-3 [%3 base-state-1]
+$ state-4 [%4 base-state-1]
+$ state-5 [%5 base-state-1]
+$ state-6 [%6 base-state-1]
+$ versioned-state
$% state-0
state-1
state-2
state-3
state-4
state-5
state-6
==
--
::
=| state-6
=* state -
%+ verb |
%- agent:dbug
^- agent:gall
=<
|_ =bowl:gall
+* this .
mc ~(. +> bowl)
def ~(. (default-agent this %|) bowl)
::
++ on-init on-init:def
++ on-save !>(state)
++ on-load
|= =vase
^- (quip card _this)
=/ old !<(versioned-state vase)
=| cards=(list card)
|^
?: ?=(%6 -.old)
=/ =^associations
(migrate-app-to-graph-store %chat associations.old)
:- cards
%_ this
associations associations
::
resource-indices
(rebuild-resource-indices associations)
::
app-indices
(rebuild-app-indices associations)
::
group-indices
(rebuild-group-indices associations)
==
?: ?=(%5 -.old)
=/ =^associations
(migrate-app-to-graph-store %publish associations.old)
%_ $
-.old %6
associations.old associations
::
resource-indices.old
(rebuild-resource-indices associations)
::
app-indices.old
(rebuild-app-indices associations)
::
group-indices.old
(rebuild-group-indices associations)
==
?: ?=(%4 -.old)
%_ $
-.old %5
::
resource-indices.old
(rebuild-resource-indices associations.old)
::
app-indices.old
(rebuild-app-indices associations.old)
::
group-indices.old
(rebuild-group-indices associations.old)
==
?: ?=(%3 -.old)
$(old [%4 +.old])
?: ?=(%2 -.old)
=/ new-state=state-3
%* . *state-3
associations
%- malt
%+ murn ~(tap by associations.old)
|= [[=group-path =md-resource] m=metadata-0]
^- (unit [[^group-path ^md-resource] metadata])
?: =(app-name.md-resource %link) ~
`[[group-path md-resource] (old-md-to-new m)]
==
$(old new-state)
?: ?=(%1 -.old)
%_ $
old [%2 +.old]
::
cards
%+ murn ~(tap in ~(key by group-indices.old))
|= =group-path
^- (unit card)
=/ rid (de-path-soft:resource group-path)
?~ rid ~
?: =(our.bowl entity.u.rid)
`(poke-md-hook %add-owned group-path)
`(poke-md-hook %add-synced entity.u.rid group-path)
==
=/ new-state-1=state-1
%* . *state-1
associations (migrate-associations associations.old)
group-indices (migrate-group-indices group-indices.old)
app-indices (migrate-app-indices app-indices.old)
resource-indices (migrate-resource-indices resource-indices.old)
==
$(old new-state-1)
::
++ rebuild-resource-indices
|= =^associations
%- ~(gas ju *(jug md-resource group-path))
%+ turn ~(tap in ~(key by associations))
|= [g=group-path r=md-resource]
^- [md-resource group-path]
[r g]
::
++ rebuild-group-indices
|= =^associations
%- ~(gas ju *(jug group-path md-resource))
~(tap in ~(key by associations))
::
++ rebuild-app-indices
|= =^associations
%- ~(gas ju *(jug app-name [group-path app-path]))
%+ turn ~(tap in ~(key by associations))
|= [g=group-path r=md-resource]
^- [app-name [group-path app-path]]
[app-name.r [g app-path.r]]
::
++ migrate-app-to-graph-store
|= [app=@tas =^associations]
^+ associations
%- malt
%+ turn ~(tap by associations)
|= [[=group-path =md-resource] m=metadata]
^- [[^group-path ^md-resource] metadata]
?. =(app-name.md-resource app)
[[group-path md-resource] m]
=/ new-app-path=path
?. ?=([@ @ ~] app-path.md-resource)
app-path.md-resource
ship+app-path.md-resource
[[group-path [%graph new-app-path]] m(module app)]
::
++ poke-md-hook
|= act=metadata-hook-action
^- card
=/ =cage metadata-hook-action+!>(act)
[%pass / %agent [our.bowl %metadata-hook] %poke cage]
::
++ new-group-path
|= =group-path
ship+(new-app-path group-path)
::
++ new-app-path
|= =app-path
^- path
?> ?=(^ app-path)
?:(=('~' i.app-path) t.app-path app-path)
::
++ old-md-to-new
|= m=metadata-0
^- metadata
%* . *metadata
title title.m
description description.m
color color.m
date-created date-created.m
creator creator.m
module *term
==
::
++ migrate-md-resource
|= md-resource
^- md-resource
?: =(%chat app-name) [%chat (new-app-path app-path)]
?: =(%contacts app-name) [%contacts ship+app-path]
[app-name app-path]
::
++ migrate-resource-indices
|= resource-indices=(jug md-resource group-path)
^- (jug md-resource group-path)
%- malt
%+ turn ~(tap by resource-indices)
|= [=md-resource paths=(set group-path)]
:- (migrate-md-resource md-resource)
(~(run in paths) new-group-path)
::
++ migrate-app-indices
|= app-indices=(jug app-name [group-path app-path])
%- malt
%+ turn ~(tap by app-indices)
|= [app=term indices=(set [=group-path =app-path])]
:- app
%- ~(run in indices)
|= [=group-path =app-path]
:- (new-group-path group-path)
?: =(%chat app) (new-app-path app-path)
?: =(%contacts app) ship+app-path
app-path
::
++ migrate-group-indices
|= group-indices=(jug group-path md-resource)
%- malt
%+ turn ~(tap by group-indices)
|= [=group-path resources=(set md-resource)]
:- (new-group-path group-path)
%- sy
%+ turn ~(tap in resources)
migrate-md-resource
::
++ migrate-associations
|= associations=associations-0
%- malt
%+ turn ~(tap by associations)
|= [[g=group-path r=md-resource] m=metadata-0]
:_ m
[(new-group-path g) (migrate-md-resource r)]
--
::
++ on-poke
|= [=mark =vase]
^- (quip card _this)
?> (team:title our.bowl src.bowl)
=^ cards state
?+ mark (on-poke:def mark vase)
%metadata-action
(poke-metadata-action:mc !<(metadata-action vase))
::
%noun
=/ val=(each [%cleanup path] tang)
(mule |.(!<([%cleanup path] vase)))
?. ?=(%& -.val)
(on-poke:def mark vase)
=/ group=path +.p.val
=/ res=(set md-resource) (~(get ju group-indices) group)
=. group-indices (~(del by group-indices) group)
:- ~
%+ roll ~(tap in res)
|= [r=md-resource out=_state]
=: resource-indices.out (~(del by resource-indices.out) r)
associations.out (~(del by associations.out) group r)
app-indices.out
%- ~(del ju app-indices.out)
[app-name.r group app-path.r]
==
out
::
%import
(poke-import:mc q.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 %metadata-update !>([%associations associations]))
::
[%updates ~]
~
::
[%app-name @ ~]
=/ =app-name i.t.path
=/ app-indices (metadata-for-app:mc app-name)
(give %metadata-update !>([%associations app-indices]))
==
[cards this]
::
++ give
|= =cage
^- (list card)
[%give %fact ~ cage]~
--
::
++ on-peek
|= =path
^- (unit (unit cage))
?+ path (on-peek:def path)
[%y %group-indices ~] ``noun+!>(group-indices)
[%y %app-indices ~] ``noun+!>(app-indices)
[%y %resource-indices ~] ``noun+!>(resource-indices)
[%x %associations ~] ``noun+!>(associations)
[%x %app-name @ ~]
=/ =app-name i.t.t.path
``noun+!>((metadata-for-app:mc app-name))
::
[%x %group *]
=/ =group-path t.t.path
``noun+!>((metadata-for-group:mc group-path))
::
[%x %metadata @ @ @ ~]
=/ =group-path (stab (slav %t i.t.t.path))
=/ =md-resource [`term`i.t.t.t.path (stab (slav %t i.t.t.t.t.path))]
``noun+!>((~(get by associations) [group-path md-resource]))
::
[%x %resource @ *]
=/ app=term i.t.t.path
=/ app-path=^path t.t.t.path
``noun+!>((~(get by resource-indices) app app-path))
::
[%x %export ~]
``noun+!>(state)
==
::
++ on-leave on-leave:def
++ on-agent on-agent:def
++ on-arvo on-arvo:def
++ on-fail on-fail:def
--
::
|_ =bowl:gall
++ poke-metadata-action
|= act=metadata-action
^- (quip card _state)
?> (team:title our.bowl src.bowl)
?- -.act
%add (handle-add group-path.act resource.act metadata.act)
%remove (handle-remove group-path.act resource.act)
==
::
++ poke-import
|= arc=*
^- (quip card _state)
|^
=/ sty=state-6
[%6 (remake-metadata ;;(tree-metadata +.arc))]
[~ sty]
::
+$ tree-metadata
$: associations=(tree [[group-path md-resource] metadata])
group-indices=(tree [group-path (tree md-resource)])
app-indices=(tree [app-name (tree [group-path app-path])])
resource-indices=(tree [md-resource (tree group-path)])
==
::
++ remake-metadata
|= tm=tree-metadata
^- base-state-1
:* (remake-map associations.tm)
(remake-jug group-indices.tm)
(remake-jug app-indices.tm)
(remake-jug resource-indices.tm)
==
--
::
++ handle-add
|= [=group-path =md-resource =metadata]
^- (quip card _state)
:- %+ send-diff app-name.md-resource
?: (~(has by resource-indices) md-resource)
[%update-metadata group-path md-resource metadata]
[%add group-path md-resource metadata]
%= state
associations
(~(put by associations) [group-path md-resource] metadata)
::
group-indices
(~(put ju group-indices) group-path md-resource)
::
app-indices
%+ ~(put ju app-indices)
app-name.md-resource
[group-path app-path.md-resource]
::
resource-indices
(~(put ju resource-indices) md-resource group-path)
==
::
++ handle-remove
|= [=group-path =md-resource]
^- (quip card _state)
:- (send-diff app-name.md-resource [%remove group-path md-resource])
%= state
associations
(~(del by associations) [group-path md-resource])
::
group-indices
(~(del ju group-indices) group-path md-resource)
::
app-indices
%+ ~(del ju app-indices)
app-name.md-resource
[group-path app-path.md-resource]
::
resource-indices
(~(del ju resource-indices) md-resource group-path)
==
::
++ metadata-for-app
|= =app-name
^- ^associations
%- ~(gas by *^associations)
%+ turn ~(tap in (~(gut by app-indices) app-name ~))
|= [=group-path =app-path]
:- [group-path [app-name app-path]]
(~(got by associations) [group-path [app-name app-path]])
::
++ metadata-for-group
|= =group-path
^- ^associations
%- ~(gas by *^associations)
%+ turn ~(tap in (~(gut by group-indices) group-path ~))
|= =md-resource
:- [group-path md-resource]
(~(got by associations) [group-path md-resource])
::
++ send-diff
|= [=app-name upd=metadata-update]
^- (list card)
|^
%- zing
:~ (update-subscribers /all upd)
(update-subscribers /updates upd)
(update-subscribers [%app-name app-name ~] upd)
==
::
++ update-subscribers
|= [pax=path upd=metadata-update]
^- (list card)
[%give %fact ~[pax] %metadata-update !>(upd)]~
--
--
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