scheduled_activity_worker.ex
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scheduled_activity_worker.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.ScheduledActivityWorker do
	@moduledoc """
	Sends scheduled activities to the job queue.
	"""

	alias Pleroma.Config
	alias Pleroma.ScheduledActivity
	alias Pleroma.User
	alias Pleroma.Web.CommonAPI
	use GenServer
	require Logger

	@schedule_interval :timer.minutes(1)

	def start_link do
	GenServer.start_link(__MODULE__, nil)
	end

	def init(_) do
	if Config.get([ScheduledActivity, :enabled]) do
	schedule_next()
	{:ok, nil}
	else
	:ignore
	end
	end

	def perform(:execute, scheduled_activity_id) do
	try do
	{:ok, scheduled_activity} = ScheduledActivity.delete(scheduled_activity_id)
	%User{} = user = User.get_cached_by_id(scheduled_activity.user_id)
	{:ok, _result} = CommonAPI.post(user, scheduled_activity.params)
	rescue
	error ->
	Logger.error(
	"#{__MODULE__} Couldn't create a status from the scheduled activity: #{inspect(error)}"
	)
	end
	end

	def handle_info(:perform, state) do
	ScheduledActivity.due_activities(@schedule_interval)
	\|> Enum.each(fn scheduled_activity ->
	PleromaJobQueue.enqueue(:scheduled_activities, __MODULE__, [:execute, scheduled_activity.id])
	end)

	schedule_next()
	{:noreply, state}
	end

	defp schedule_next do
	Process.send_after(self(), :perform, @schedule_interval)
	end
	end