mobilizon/lib/federation/activity_pub/actions/remove.ex

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defmodule Mobilizon.Federation.ActivityPub.Actions.Remove do
@moduledoc """
Remove things
"""
alias Mobilizon.Actors
alias Mobilizon.Actors.{Actor, Member}
alias Mobilizon.Federation.ActivityPub.Activity
alias Mobilizon.Web.Email.Member, as: EmailMember
require Logger
import Mobilizon.Federation.ActivityPub.Utils,
only: [
create_activity: 2,
maybe_federate: 1,
maybe_relay_if_group_activity: 1
]
@doc """
Remove an activity, using an activity of type `Remove`
"""
@spec remove(Member.t(), Actor.t(), Actor.t(), boolean, map) ::
{:ok, Activity.t(), Member.t()} | {:error, :member_not_found | Ecto.Changeset.t()}
def remove(
%Member{id: member_id},
%Actor{type: :Group, url: group_url, members_url: group_members_url},
%Actor{url: moderator_url} = moderator,
local,
_additional \\ %{}
) do
with %Member{actor: %Actor{url: actor_url}} = member <- Actors.get_member(member_id),
{:ok, %Member{}} <- Actors.delete_member(member) do
Mobilizon.Service.Activity.Member.insert_activity(member,
moderator: moderator,
subject: "member_removed"
)
Cachex.del(:activity_pub, "member_#{member_id}")
EmailMember.send_notification_to_removed_member(member)
remove_data = %{
"to" => [actor_url, group_members_url],
"type" => "Remove",
"actor" => moderator_url,
"object" => member.url,
"origin" => group_url
}
{:ok, activity} = create_activity(remove_data, local)
maybe_federate(activity)
maybe_relay_if_group_activity(activity)
{:ok, activity, member}
else
nil -> {:error, :member_not_found}
{:error, %Ecto.Changeset{} = err} -> {:error, err}
end
end
end