defmodule Mobilizon.GraphQL.Resolvers.Group do @moduledoc """ Handles the group-related GraphQL calls. """ import Mobilizon.Users.Guards alias Mobilizon.{Actors, Events, Users} alias Mobilizon.Actors.{Actor, Member} alias Mobilizon.Federation.ActivityPub alias Mobilizon.GraphQL.API alias Mobilizon.Users.User alias Mobilizon.Web.Upload import Mobilizon.Web.Gettext require Logger @doc """ Find a group """ def find_group( parent, %{preferred_username: name} = args, %{ context: %{ current_user: %User{} = user } } ) do with {:group, {:ok, %Actor{id: group_id} = group}} <- {:group, ActivityPub.find_or_make_group_from_nickname(name)}, {:actor, %Actor{id: actor_id} = _actor} <- {:actor, Users.get_actor_for_user(user)}, {:member, true} <- {:member, Actors.is_member?(actor_id, group_id)} do {:ok, group} else {:member, false} -> find_group(parent, args, nil) {:group, _} -> {:error, :group_not_found} _ -> {:error, :unknown} end end def find_group(_parent, %{preferred_username: name}, _resolution) do with {:ok, actor} <- ActivityPub.find_or_make_group_from_nickname(name), %Actor{} = actor <- restrict_fields_for_non_member_request(actor) do {:ok, actor} else _ -> {:error, :group_not_found} end end @doc """ Get a group """ def get_group(_parent, %{id: id}, %{context: %{current_user: %User{role: role}}}) do with %Actor{type: :Group, suspended: suspended} = actor <- Actors.get_actor_with_preload(id, true), true <- suspended == false or is_moderator(role) do {:ok, actor} else _ -> {:error, dgettext("errors", "Group with ID %{id} not found", id: id)} end end @doc """ Lists all groups """ def list_groups( _parent, %{ preferred_username: preferred_username, name: name, domain: domain, local: local, suspended: suspended, page: page, limit: limit }, %{ context: %{current_user: %User{role: role}} } ) when is_moderator(role) do {:ok, Actors.list_actors(:Group, preferred_username, name, domain, local, suspended, page, limit)} end def list_groups(_parent, _args, _resolution), do: {:error, dgettext("errors", "You may not list groups unless moderator.")} # TODO Move me to somewhere cleaner defp save_attached_pictures(args) do Enum.reduce([:avatar, :banner], args, fn key, args -> if is_map(args) && Map.has_key?(args, key) && !is_nil(args[key][:media]) do pic = args[key][:media] with {:ok, %{name: name, url: url, content_type: content_type, size: _size}} <- Upload.store(pic.file, type: key, description: pic.alt) do Map.put(args, key, %{"name" => name, "url" => url, "mediaType" => content_type}) end else args end end) end @doc """ Create a new group. The creator is automatically added as admin """ def create_group( _parent, args, %{ context: %{ current_user: user } } ) do with %Actor{id: creator_actor_id} = creator_actor <- Users.get_actor_for_user(user), args when is_map(args) <- Map.update(args, :preferred_username, "", &String.downcase/1), args when is_map(args) <- Map.put(args, :creator_actor, creator_actor), args when is_map(args) <- Map.put(args, :creator_actor_id, creator_actor_id), {:picture, args} when is_map(args) <- {:picture, save_attached_pictures(args)}, {:ok, _activity, %Actor{type: :Group} = group} <- API.Groups.create_group(args) do {:ok, group} else {:picture, {:error, :file_too_large}} -> {:error, dgettext("errors", "The provided picture is too heavy")} {:error, err} when is_binary(err) -> {:error, err} end end def create_group(_parent, _args, _resolution) do {:error, "You need to be logged-in to create a group"} end @doc """ Update a group. The creator is automatically added as admin """ def update_group( _parent, %{id: group_id} = args, %{ context: %{ current_user: %User{} = user } } ) do with %Actor{} = updater_actor <- Users.get_actor_for_user(user), {:administrator, true} <- {:administrator, Actors.is_administrator?(updater_actor.id, group_id)}, args when is_map(args) <- Map.put(args, :updater_actor, updater_actor), {:picture, args} when is_map(args) <- {:picture, save_attached_pictures(args)}, {:ok, _activity, %Actor{type: :Group} = group} <- API.Groups.update_group(args) do {:ok, group} else {:picture, {:error, :file_too_large}} -> {:error, dgettext("errors", "The provided picture is too heavy")} {:error, err} when is_binary(err) -> {:error, err} {:administrator, false} -> {:error, dgettext("errors", "Profile is not administrator for the group")} end end def update_group(_parent, _args, _resolution) do {:error, dgettext("errors", "You need to be logged-in to update a group")} end @doc """ Delete an existing group """ def delete_group( _parent, %{group_id: group_id}, %{ context: %{ current_user: user } } ) do with %Actor{id: actor_id} = actor <- Users.get_actor_for_user(user), {:ok, %Actor{} = group} <- Actors.get_group_by_actor_id(group_id), {:ok, %Member{} = member} <- Actors.get_member(actor_id, group.id), {:is_admin, true} <- {:is_admin, Member.is_administrator(member)}, {:ok, _activity, group} <- ActivityPub.delete(group, actor, true) do {:ok, %{id: group.id}} else {:error, :group_not_found} -> {:error, dgettext("errors", "Group not found")} {:error, :member_not_found} -> {:error, dgettext("errors", "Current profile is not a member of this group")} {:is_admin, false} -> {:error, dgettext("errors", "Current profile is not an administrator of the selected group")} end end def delete_group(_parent, _args, _resolution) do {:error, dgettext("errors", "You need to be logged-in to delete a group")} end @doc """ Join an existing group """ def join_group(_parent, %{group_id: group_id} = args, %{ context: %{current_user: %User{} = user} }) do with %Actor{} = actor <- Users.get_actor_for_user(user), {:ok, %Actor{type: :Group} = group} <- Actors.get_group_by_actor_id(group_id), {:error, :member_not_found} <- Actors.get_member(actor.id, group.id), {:is_able_to_join, true} <- {:is_able_to_join, Member.can_be_joined(group)}, {:ok, _activity, %Member{} = member} <- ActivityPub.join(group, actor, true, args) do {:ok, member} else {:error, :group_not_found} -> {:error, dgettext("errors", "Group not found")} {:is_able_to_join, false} -> {:error, dgettext("errors", "You cannot join this group")} {:ok, %Member{}} -> {:error, dgettext("errors", "You are already a member of this group")} end end def join_group(_parent, _args, _resolution) do {:error, dgettext("errors", "You need to be logged-in to join a group")} end @doc """ Leave a existing group """ def leave_group( _parent, %{group_id: group_id}, %{ context: %{ current_user: %User{} = user } } ) do with {:actor, %Actor{} = actor} <- {:actor, Users.get_actor_for_user(user)}, {:group, %Actor{type: :Group} = group} <- {:group, Actors.get_actor(group_id)}, {:ok, _activity, %Member{} = member} <- ActivityPub.leave(group, actor, true) do {:ok, member} else {:error, :member_not_found} -> {:error, dgettext("errors", "Member not found")} {:group, nil} -> {:error, dgettext("errors", "Group not found")} {:is_not_only_admin, false} -> {:error, dgettext("errors", "You can't leave this group because you are the only administrator")} end end def leave_group(_parent, _args, _resolution) do {:error, dgettext("errors", "You need to be logged-in to leave a group")} end def find_events_for_group( %Actor{id: group_id} = group, %{ page: page, limit: limit } = args, %{ context: %{ current_user: %User{role: user_role} = user } } ) do with {:actor, %Actor{id: actor_id} = _actor} <- {:actor, Users.get_actor_for_user(user)}, {:member, true} <- {:member, Actors.is_member?(actor_id, group_id) or is_moderator(user_role)} do # TODO : Handle public / restricted to group members events {:ok, Events.list_organized_events_for_group( group, :all, Map.get(args, :after_datetime), Map.get(args, :before_datetime), page, limit )} else {:member, false} -> find_events_for_group(group, args, nil) end end def find_events_for_group( %Actor{} = group, %{ page: page, limit: limit } = args, _resolution ) do {:ok, Events.list_organized_events_for_group( group, :public, Map.get(args, :after_datetime), Map.get(args, :before_datetime), page, limit )} end defp restrict_fields_for_non_member_request(%Actor{} = group) do Map.merge( group, %{ followers: [], followings: [], organized_events: [], comments: [], feed_tokens: [] } ) end end