mobilizon/lib/federation/activity_pub/preloader.ex

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Elixir
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defmodule Mobilizon.Federation.ActivityPub.Preloader do
@moduledoc """
Module to ensure entities are correctly preloaded
"""
# TODO: Move me in a more appropriate place
alias Mobilizon.{Actors, Discussions, Events, Posts, Resources}
alias Mobilizon.Actors.{Actor, Member}
alias Mobilizon.Discussions.{Comment, Discussion}
alias Mobilizon.Events.Event
alias Mobilizon.Posts.Post
alias Mobilizon.Resources.Resource
alias Mobilizon.Tombstone
@spec maybe_preload(struct()) :: {:ok, struct()} | {:error, struct()}
def maybe_preload(%Event{url: url}),
do: {:ok, Events.get_public_event_by_url_with_preload!(url)}
def maybe_preload(%Comment{url: url}),
do: {:ok, Discussions.get_comment_from_url_with_preload!(url)}
def maybe_preload(%Discussion{id: discussion_id}),
do: {:ok, Discussions.get_discussion(discussion_id)}
def maybe_preload(%Resource{url: url}),
do: {:ok, Resources.get_resource_by_url_with_preloads(url)}
def maybe_preload(%Post{url: url}),
do: {:ok, Posts.get_post_by_url_with_preloads(url)}
def maybe_preload(%Actor{url: url}), do: {:ok, Actors.get_actor_by_url!(url, true)}
def maybe_preload(%Member{} = member), do: {:ok, member}
def maybe_preload(%Tombstone{uri: _uri} = tombstone), do: {:ok, tombstone}
def maybe_preload(other), do: {:error, other}
end