metadata-store: modify module from @t to (each @t (unit (unit md-resource))) so as to allow for setting an optional group feed associated with a group

pkg/arvo/app/hark-graph-hook.hoon

@@ -279,7 +279,10 @@
     =/  metadatum=(unit metadatum:metadata)
       (peek-metadatum:met %graph rid)
     ?~  metadatum  `state
-    abet:check:(abed:handle-update:ha rid nodes u.group module.u.metadatum)
+    =/  module=term
+      ?.  ?=(%& -.module.u.metadatum)  %$
+      p.module.u.metadatum
+    abet:check:(abed:handle-update:ha rid nodes u.group module)
   --
 ::
 ++  on-peek  on-peek:def

pkg/arvo/app/metadata-store.hoon

@@ -64,6 +64,21 @@
       resource-indices=(jug md-resource-1 path)
   ==
 ::
++$  metadatum-2
+  $:  title=cord
+      description=cord
+      =color:store
+      date-created=time
+      creator=ship
+      module=term
+      picture=url:store
+      preview=?
+      vip=vip-metadata:store
+  ==
+::
++$  association-2   [group=resource =metadatum-2]
++$  associations-2  (map md-resource:store association-2)
+::
 +$  cached-indices
   $:  group-indices=(jug resource md-resource:store)
       app-indices=(jug app-name:store [group=resource =resource])
@@ -71,6 +86,11 @@
   ==
 ::
 +$  base-state-2
+  $:  associations=associations-2
+      ~
+  ==
+::
++$  base-state-3
   $:  =associations:store
       ~
   ==
@@ -83,6 +103,7 @@
 +$  state-5   [%5 base-state-1]
 +$  state-6   [%6 base-state-1]
 +$  state-7   [%7 base-state-2]
++$  state-8   [%8 base-state-3]
 +$  versioned-state
   $%  state-0
       state-1
@@ -92,10 +113,11 @@
       state-5
       state-6
       state-7
+      state-8
   ==
 ::
 +$  inflated-state
-  $:  state-7
+  $:  state-8
       cached-indices
   ==
 --
@@ -208,21 +230,16 @@
   =|  cards=(list card)
   |^
   =*  loop  $
-  ?:  ?=(%7 -.old)
+  ?:  ?=(%8 -.old)
     :-  cards
     %_  state
-         associations
-       associations.old
-      ::
-         resource-indices
-       (rebuild-resource-indices associations.old)
-      ::
-         group-indices
-      (rebuild-group-indices associations.old)
-      ::
-        app-indices
-      (rebuild-app-indices associations.old)
+      associations      associations.old
+      resource-indices  (rebuild-resource-indices associations.old)
+      group-indices     (rebuild-group-indices associations.old)
+      app-indices       (rebuild-app-indices associations.old)
     ==
+  ?:  ?=(%7 -.old)
+    $(old [%8 (associations-2-to-3 associations.old) ~])
   ?:  ?=(%6 -.old)
     =/  old-assoc=associations-1
       (migrate-app-to-graph-store %chat associations.old)
@@ -236,12 +253,36 @@
       associations.old  associations
     ==
   ::  pre-breach, can safely throw away
-  loop(old *state-7)
+  loop(old *state-8)
+  ::
+  ++  associations-2-to-3
+    |=  assoc=associations-2
+    ^-  associations:store
+    %-  ~(gas by *associations:store)
+    %+  turn  ~(tap by assoc)
+    |=  [m=md-resource:store [g=resource met=metadatum-2]]
+    [m [g (metadatum-2-to-3 met)]]
+  ::
+  ++  metadatum-2-to-3
+    |=  m=metadatum-2
+    %*  .  *metadatum:store
+      title         title.m
+      description   description.m
+      color         color.m
+      date-created  date-created.m
+      creator       creator.m
+      preview       %.n
+    ::
+        module        
+      ?:  =(module.m %$)
+        [%| ~]
+      [%& module.m]
+    ==
   ::
   ++  associations-1-to-2
     |=  assoc=associations-1
-    ^-  associations:store
-    %-  ~(gas by *associations:store)
+    ^-  associations-2
+    %-  ~(gas by *associations-2)
     %+  murn
       ~(tap by assoc)
     |=  [[group=path m=md-resource-1] met=metadata-1]
@@ -324,7 +365,7 @@
   ^-  (quip card _state)
   |^
   =^  cards  state  
-    (on-load !>([%7 (remake-metadata ;;(tree-metadata +.arc))]))
+    (on-load !>([%8 (remake-metadata ;;(tree-metadata +.arc))]))
   :_  state
   %+  weld  cards
   %+  turn  ~(tap in ~(key by group-indices))
@@ -348,7 +389,7 @@
   ::
   ++  remake-metadata
     |=  tm=tree-metadata
-    ^-  base-state-2
+    ^-  base-state-3
     :*  (remake-map associations.tm)
         ~
     ==

pkg/arvo/lib/metadata-store.hoon

@@ -46,7 +46,19 @@
         [%color s+(scot %ux color.met)]
         [%date-created s+(scot %da date-created.met)]
         [%creator s+(scot %p creator.met)]
-        [%module s+module.met]
+      ::
+        :-  %module
+        ?:  ?=(%& -.module.met)
+          s+p.module.met
+        ?~  p.module.met
+          ~
+        ?~  u.p.module.met
+          o+~
+        %-  pairs
+        :~  [%app-name s+app-name.u.u.p.module.met]
+            [%resource s+(enjs-path:resource resource.u.u.p.module.met)]
+        ==
+      ::
         [%picture s+picture.met]
         [%preview b+preview.met]
         [%vip s+`@t`vip.met]
@@ -156,12 +168,32 @@
         [%color nu]
         [%date-created (se %da)]
         [%creator (su ;~(pfix sig fed:ag))]
-        [%module so]
+        [%module module]
         [%picture so]
         [%preview bo]
         [%vip vip]
     ==
   ::
+  ++  module
+    |=  jon=^json
+    ^-  (each term (unit (unit ^md-resource)))
+    ?~  jon
+      [%| ~]
+    ?:  ?=(%s -.jon)
+      [%& p.jon]
+    ?>  ?=(%o -.jon)
+    :+  %|  ~
+    ?.  ?&  (~(has by p.jon) 'app-name')
+            (~(has by p.jon) 'resource')
+        ==
+      ~
+    =/  app-name=^json  (~(got by p.jon) 'app-name')
+    ?>  ?=(%s -.app-name)
+    :+  ~
+      p.app-name
+    =/  res=^json  (~(got by p.jon) 'resource')
+    (dejs-path:resource res)
+  ::
   ++  md-resource
     ^-  $-(json ^md-resource)
     %-  ot

pkg/arvo/sur/metadata-store.hoon

@@ -34,7 +34,7 @@
       =color
       date-created=time
       creator=ship
-      module=term
+      module=(each term (unit (unit md-resource)))
       picture=url
       preview=?
       vip=vip-metadata