Introduce group posts

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/web/views/page_view.ex

@@ -6,7 +6,7 @@ defmodule Mobilizon.Web.PageView do
   use Mobilizon.Web, :view
 
   alias Mobilizon.Actors.Actor
-  alias Mobilizon.Conversations.Comment
+  alias Mobilizon.Discussions.{Comment, Discussion}
   alias Mobilizon.Events.Event
   alias Mobilizon.Resources.Resource
   alias Mobilizon.Tombstone
@@ -42,6 +42,12 @@ defmodule Mobilizon.Web.PageView do
     |> Map.merge(Utils.make_json_ld_header())
   end
 
+  def render("discussion.activity-json", %{conn: %{assigns: %{object: %Discussion{} = resource}}}) do
+    resource
+    |> Convertible.model_to_as()
+    |> Map.merge(Utils.make_json_ld_header())
+  end
+
   def render("resource.activity-json", %{conn: %{assigns: %{object: %Resource{} = resource}}}) do
     resource
     |> Convertible.model_to_as()
@@ -49,12 +55,15 @@ defmodule Mobilizon.Web.PageView do
   end
 
   def render(page, %{object: object, conn: conn} = _assigns)
-      when page in ["actor.html", "event.html", "comment.html"] do
+      when page in ["actor.html", "event.html", "comment.html", "post.html"] do
     locale = get_locale(conn)
     tags = object |> Metadata.build_tags(locale)
     inject_tags(tags, locale)
   end
 
+  # Discussions are private, no need to embed metadata
+  def render("discussion.html", params), do: render("index.html", params)
+
   def render("index.html", %{conn: conn}) do
     tags = Instance.build_tags()
     inject_tags(tags, get_locale(conn))