debianize-mobilizon/lib/graphql/middleware/current_actor_provider.ex

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defmodule Mobilizon.GraphQL.Middleware.CurrentActorProvider do
@moduledoc """
Absinthe Error Handler
"""
alias Mobilizon.Actors.Actor
alias Mobilizon.Users
alias Mobilizon.Users.User
@behaviour Absinthe.Middleware
@impl Absinthe.Middleware
@spec call(Absinthe.Resolution.t(), any) :: Absinthe.Resolution.t()
def call(
%Absinthe.Resolution{context: %{current_user: %User{id: user_id} = user} = context} =
resolution,
_config
) do
case Cachex.fetch(:default_actors, to_string(user_id), fn -> default(user) end) do
{status, %Actor{preferred_username: preferred_username} = current_actor}
when status in [:ok, :commit] ->
Sentry.Context.set_user_context(%{name: preferred_username})
context = Map.put(context, :current_actor, current_actor)
%Absinthe.Resolution{resolution | context: context}
{_, nil} ->
resolution
end
end
def call(%Absinthe.Resolution{} = resolution, _config), do: resolution
@spec default(User.t()) :: {:commit, Actor.t()} | {:ignore, nil}
defp default(%User{} = user) do
case Users.get_actor_for_user(user) do
%Actor{} = actor ->
{:commit, actor}
nil ->
{:ignore, nil}
end
end
end