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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.ScheduledActivity do
use Ecto.Schema
alias Pleroma.Config
alias Pleroma.Repo
alias Pleroma.ScheduledActivity
alias Pleroma.User
alias Pleroma.Web.CommonAPI.Utils
import Ecto.Query
import Ecto.Changeset
@min_offset :timer.minutes(5)
schema "scheduled_activities" do
belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
field(:scheduled_at, :naive_datetime)
field(:params, :map)
timestamps()
end
def changeset(%ScheduledActivity{} = scheduled_activity, attrs) do
scheduled_activity
|> cast(attrs, [:scheduled_at, :params])
|> validate_required([:scheduled_at, :params])
|> validate_scheduled_at()
|> with_media_attachments()
end
defp with_media_attachments(
%{changes: %{params: %{"media_ids" => media_ids} = params}} = changeset
)
when is_list(media_ids) do
media_attachments = Utils.attachments_from_ids(%{"media_ids" => media_ids})
params =
params
|> Map.put("media_attachments", media_attachments)
|> Map.put("media_ids", media_ids)
put_change(changeset, :params, params)
end
defp with_media_attachments(changeset), do: changeset
def update_changeset(%ScheduledActivity{} = scheduled_activity, attrs) do
scheduled_activity
|> cast(attrs, [:scheduled_at])
|> validate_required([:scheduled_at])
|> validate_scheduled_at()
end
def validate_scheduled_at(changeset) do
validate_change(changeset, :scheduled_at, fn _, scheduled_at ->
cond do
not far_enough?(scheduled_at) ->
[scheduled_at: "must be at least 5 minutes from now"]
exceeds_daily_user_limit?(changeset.data.user_id, scheduled_at) ->
[scheduled_at: "daily limit exceeded"]
exceeds_total_user_limit?(changeset.data.user_id) ->
[scheduled_at: "total limit exceeded"]
true ->
[]
end
end)
end
def exceeds_daily_user_limit?(user_id, scheduled_at) do
ScheduledActivity
|> where(user_id: ^user_id)
|> where([sa], type(sa.scheduled_at, :date) == type(^scheduled_at, :date))
|> select([sa], count(sa.id))
|> Repo.one()
|> Kernel.>=(Config.get([ScheduledActivity, :daily_user_limit]))
end
def exceeds_total_user_limit?(user_id) do
ScheduledActivity
|> where(user_id: ^user_id)
|> select([sa], count(sa.id))
|> Repo.one()
|> Kernel.>=(Config.get([ScheduledActivity, :total_user_limit]))
end
def far_enough?(scheduled_at) when is_binary(scheduled_at) do
with {:ok, scheduled_at} <- Ecto.Type.cast(:naive_datetime, scheduled_at) do
far_enough?(scheduled_at)
else
_ -> false
end
end
def far_enough?(scheduled_at) do
now = NaiveDateTime.utc_now()
diff = NaiveDateTime.diff(scheduled_at, now, :millisecond)
diff > @min_offset
end
def new(%User{} = user, attrs) do
%ScheduledActivity{user_id: user.id}
|> changeset(attrs)
end
def create(%User{} = user, attrs) do
user
|> new(attrs)
|> Repo.insert()
end
def get(%User{} = user, scheduled_activity_id) do
ScheduledActivity
|> where(user_id: ^user.id)
|> where(id: ^scheduled_activity_id)
|> Repo.one()
end
def update(%ScheduledActivity{} = scheduled_activity, attrs) do
scheduled_activity
|> update_changeset(attrs)
|> Repo.update()
end
def delete(%ScheduledActivity{} = scheduled_activity) do
scheduled_activity
|> Repo.delete()
end
def delete(id) when is_binary(id) or is_integer(id) do
ScheduledActivity
|> where(id: ^id)
|> select([sa], sa)
|> Repo.delete_all()
|> case do
{1, [scheduled_activity]} -> {:ok, scheduled_activity}
_ -> :error
end
end
def for_user_query(%User{} = user) do
ScheduledActivity
|> where(user_id: ^user.id)
end
def due_activities(offset \\ 0) do
naive_datetime =
NaiveDateTime.utc_now()
|> NaiveDateTime.add(offset, :millisecond)
ScheduledActivity
|> where([sa], sa.scheduled_at < ^naive_datetime)
|> Repo.all()
end
end

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