defmodule Mobilizon.Federation.ActivityStream.Converter.Member do @moduledoc """ Member converter. This module allows to convert members from ActivityStream format to our own internal one, and back. """ alias Mobilizon.Actors.Actor alias Mobilizon.Actors.Member, as: MemberModel alias Mobilizon.Federation.ActivityPub alias Mobilizon.Federation.ActivityPub.Utils alias Mobilizon.Federation.ActivityStream.Convertible defimpl Convertible, for: MemberModel do alias Mobilizon.Federation.ActivityStream.Converter.Member, as: MemberConverter defdelegate model_to_as(member), to: MemberConverter end @doc """ Convert an event struct to an ActivityStream representation. """ @spec model_to_as(MemberModel.t()) :: map def model_to_as(%MemberModel{} = member) do %{ "type" => "Member", "id" => member.url, "actor" => member.actor.url, "object" => member.parent.url, "role" => to_string(member.role) } end def as_to_model_data(%{ "type" => "Member", "actor" => actor, "object" => group, "role" => role, "id" => url }) do with {:ok, %Actor{id: group_id}} <- get_actor(group), {:ok, %Actor{id: actor_id}} <- get_actor(actor) do %{ url: url, actor_id: actor_id, parent_id: group_id, role: role } end end @spec get_actor(String.t() | map() | nil) :: {:ok, Actor.t()} | {:error, String.t()} defp get_actor(nil), do: {:error, "nil property found for actor data"} defp get_actor(actor), do: actor |> Utils.get_url() |> ActivityPub.get_or_fetch_actor_by_url() end