MastodonAPI: Support poll notification

lib/pleroma/workers/poll_worker.ex

@@ -0,0 +1,43 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.PollWorker do
+  @moduledoc """
+  Generates notifications when a poll ends.
+  """
+  use Pleroma.Workers.WorkerHelper, queue: "poll_notifications"
+
+  alias Pleroma.Activity
+  alias Pleroma.Notification
+  alias Pleroma.Object
+
+  @impl Oban.Worker
+  def perform(%Job{args: %{"op" => "poll_end", "activity_id" => activity_id}}) do
+    with %Activity{} = activity <- find_poll_activity(activity_id) do
+      Notification.create_poll_notifications(activity)
+    end
+  end
+
+  defp find_poll_activity(activity_id) do
+    with nil <- Activity.get_by_id(activity_id) do
+      {:error, :poll_activity_not_found}
+    end
+  end
+
+  def schedule_poll_end(%Activity{data: %{"type" => "Create"}, id: activity_id} = activity) do
+    with %Object{data: %{"type" => "Question", "closed" => closed}} <- Object.normalize(activity),
+         {:ok, end_time} <- NaiveDateTime.from_iso8601(closed) do
+      %{
+        op: "poll_end",
+        activity_id: activity_id
+      }
+      |> new(scheduled_at: end_time)
+      |> Oban.insert()
+    else
+      _ -> {:error, activity}
+    end
+  end
+
+  def schedule_poll_end(activity), do: {:error, activity}
+end