defmodule Accountable.Guardian do
  use Guardian, otp_app: :accountable

  def subject_for_token(resource, _claims) do
    user_id = to_string(resource.id)
    {:ok, user_id}
  end

  def resource_from_claims(claims) do
    id = claims["sub"]

    case Accountable.user_by_id(id) do
      nil ->
        {:error, "User not found"}

      user ->
        {:ok, user}
    end
  end
end