Add likes and shares to activitypub note

lib/nulla_web/controllers/activitypub/note_json.ex

@@ -4,11 +4,11 @@ defmodule NullaWeb.ActivityPub.NoteJSON do
   @doc """
   Renders a single note.
   """
-  def show(note) do
-    data(note)
+  def show(note, likes_count, shares_count) do
+    data(note, likes_count, shares_count)
   end
 
-  defp data(%Note{} = note) do
+  defp data(%Note{} = note, likes_count, shares_count) do
     attachment =
       case note.media_attachments do
         [] ->
@@ -44,7 +44,21 @@ defmodule NullaWeb.ActivityPub.NoteJSON do
       sensitive: note.sensitive,
       content: note.content,
       contentMap: Jason.OrderedObject.new("#{note.language}": note.content),
-      attachment: attachment
+      attachment: attachment,
+      tag: note.tag,
+      replies: %{},
+      likes:
+        Jason.OrderedObject.new(
+          id: "#{note.ap_id}/likes",
+          type: "Collection",
+          totalItems: likes_count
+        ),
+      shares:
+        Jason.OrderedObject.new(
+          id: "#{note.ap_id}/shares",
+          type: "Collection",
+          totalItems: shares_count
+        )
     )
   end
 end