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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.Workers.Cron.DigestEmailsWorker do
   6   @moduledoc """
   7   The worker to send digest emails.
   8   """
   9
  10   use Oban.Worker, queue: "digest_emails"
  11
  12   alias Pleroma.Config
  13   alias Pleroma.Emails
  14   alias Pleroma.Repo
  15   alias Pleroma.User
  16
  17   import Ecto.Query
  18
  19   require Logger
  20
  21   @impl Oban.Worker
  22   def perform(_opts, _job) do
  23     config = Config.get([:email_notifications, :digest])
  24
  25     if config[:active] do
  26       negative_interval = -Map.fetch!(config, :interval)
  27       inactivity_threshold = Map.fetch!(config, :inactivity_threshold)
  28       inactive_users_query = User.list_inactive_users_query(inactivity_threshold)
  29
  30       now = NaiveDateTime.truncate(NaiveDateTime.utc_now(), :second)
  31
  32       from(u in inactive_users_query,
  33         where: fragment(~s(? ->'digest' @> 'true'), u.email_notifications),
  34         where: u.last_digest_emailed_at < datetime_add(^now, ^negative_interval, "day"),
  35         select: u
  36       )
  37       |> Repo.all()
  38       |> send_emails
  39     end
  40   end
  41
  42   def send_emails(users) do
  43     Enum.each(users, &send_email/1)
  44   end
  45
  46   @doc """
  47   Send digest email to the given user.
  48   Updates `last_digest_emailed_at` field for the user and returns the updated user.
  49   """
  50   @spec send_email(User.t()) :: User.t()
  51   def send_email(user) do
  52     with %Swoosh.Email{} = email <- Emails.UserEmail.digest_email(user) do
  53       Emails.Mailer.deliver_async(email)
  54     end
  55
  56     User.touch_last_digest_emailed_at(user)
  57   end
  58 end