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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.User.WelcomeMessage do
   6   alias Pleroma.User
   7   alias Pleroma.Web.CommonAPI
   8
   9   def post_welcome_message_to_user(user) do
  10     with %User{} = sender_user <- welcome_user(),
  11          message when is_binary(message) <- welcome_message() do
  12       CommonAPI.post(sender_user, %{
  13         "visibility" => "direct",
  14         "status" => "@#{user.nickname}\n#{message}"
  15       })
  16     else
  17       _ -> {:ok, nil}
  18     end
  19   end
  20
  21   defp welcome_user do
  22     with nickname when is_binary(nickname) <-
  23            Pleroma.Config.get([:instance, :welcome_user_nickname]),
  24          %User{local: true} = user <- User.get_cached_by_nickname(nickname) do
  25       user
  26     else
  27       _ -> nil
  28     end
  29   end
  30
  31   defp welcome_message do
  32     Pleroma.Config.get([:instance, :welcome_message])
  33   end
  34 end