defmodule MobilizonWeb.API.Groups do @moduledoc """ API for Groups. """ alias Mobilizon.Actors alias Mobilizon.Actors.Actor alias Mobilizon.Service.ActivityPub alias Mobilizon.Service.ActivityPub.Utils, as: ActivityPubUtils alias Mobilizon.Users.User alias MobilizonWeb.API.Utils @doc """ Create a group """ @spec create_group(User.t(), map()) :: {:ok, Activity.t(), Group.t()} | any() def create_group( user, %{ preferred_username: title, summary: summary, creator_actor_id: creator_actor_id, avatar: _avatar, banner: _banner } = args ) do with {:is_owned, %Actor{} = actor} <- User.owns_actor(user, creator_actor_id), title <- String.trim(title), {:existing_group, nil} <- {:existing_group, Actors.get_group_by_title(title)}, visibility <- Map.get(args, :visibility, :public), {content_html, tags, to, cc} <- Utils.prepare_content(actor, summary, visibility, [], nil), group <- ActivityPubUtils.make_group_data(actor.url, to, title, content_html, tags, cc) do ActivityPub.create(%{ to: ["https://www.w3.org/ns/activitystreams#Public"], actor: actor, object: group, local: true }) else {:existing_group, _} -> {:error, "A group with this name already exists"} {:is_owned, nil} -> {:error, "Actor id is not owned by authenticated user"} end end end