Refactor Mobilizon.Federation.ActivityPub and add typespecs

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

lib/federation/activity_pub/actions/update.ex

@@ -0,0 +1,44 @@
+defmodule Mobilizon.Federation.ActivityPub.Actions.Update do
+  @moduledoc """
+  Update things
+  """
+  alias Mobilizon.Federation.ActivityPub.Activity
+  alias Mobilizon.Federation.ActivityPub.Types.Managable
+  require Logger
+
+  import Mobilizon.Federation.ActivityPub.Utils,
+    only: [
+      create_activity: 2,
+      maybe_federate: 1,
+      maybe_relay_if_group_activity: 1
+    ]
+
+  @doc """
+  Create an activity of type `Update`
+
+    * Updates the object, which returns AS data
+    * Wraps ActivityStreams data into a `Update` activity
+    * Creates an `Mobilizon.Federation.ActivityPub.Activity` from this
+    * Federates (asynchronously) the activity
+    * Returns the activity
+  """
+  @spec update(Entity.t(), map(), boolean, map()) ::
+          {:ok, Activity.t(), Entity.t()} | {:error, atom() | Ecto.Changeset.t()}
+  def update(old_entity, args, local \\ false, additional \\ %{}) do
+    Logger.debug("updating an activity")
+    Logger.debug(inspect(args))
+
+    case Managable.update(old_entity, args, additional) do
+      {:ok, entity, update_data} ->
+        {:ok, activity} = create_activity(update_data, local)
+        maybe_federate(activity)
+        maybe_relay_if_group_activity(activity)
+        {:ok, activity, entity}
+
+      {:error, err} ->
+        Logger.error("Something went wrong while creating an activity")
+        Logger.debug(inspect(err))
+        {:error, err}
+    end
+  end
+end