WIP

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

lib/service/workers/activity_builder.ex

@@ -3,15 +3,20 @@ defmodule Mobilizon.Service.Workers.ActivityBuilder do
   Worker to insert activity items in users feeds
   """
 
-  alias Mobilizon.Activities
+  alias Mobilizon.{Activities, Actors, Users}
   alias Mobilizon.Activities.Activity
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Service.Notifier
+  alias Mobilizon.Users.User
 
   use Mobilizon.Service.Workers.Helper, queue: "activity"
 
   @impl Oban.Worker
   def perform(%Job{args: args}) do
-    with {"build_activity", args} <- Map.pop(args, "op") do
-      build_activity(args)
+    with {"build_activity", args} <- Map.pop(args, "op"),
+         {:ok, %Activity{} = activity} <- build_activity(args),
+         preloaded_activity <- Activities.preload_activity(activity) do
+      notify_activity(preloaded_activity)
     end
   end
 
@@ -19,4 +24,27 @@ defmodule Mobilizon.Service.Workers.ActivityBuilder do
   def build_activity(args) do
     Activities.create_activity(args)
   end
+
+  @spec notify_activity(Activity.t()) :: :ok
+  def notify_activity(%Activity{} = activity) do
+    activity
+    |> users_to_notify()
+    |> Enum.each(&Notifier.notify(&1, activity))
+  end
+
+  @spec users_to_notify(Activity.t()) :: list(User.t())
+  defp users_to_notify(%Activity{group: %Actor{} = group, author_id: author_id}) do
+    group
+    |> Actors.list_internal_actors_members_for_group([
+      :creator,
+      :administrator,
+      :moderator,
+      :member
+    ])
+    |> Enum.filter(&(&1.id != author_id))
+    |> Enum.map(& &1.user_id)
+    |> Enum.filter(& &1)
+    |> Enum.uniq()
+    |> Enum.map(&Users.get_user!/1)
+  end
 end