jacob

defmodule Jacob.Concerns.RequiredAttributes do
  alias Jacob.RequiredAttributeMissingError

  @moduledoc false

  @doc """
  Check that the given module has all the required attributes.
  """
  def check(command_module, required_attributes) do
    Enum.each(required_attributes, &check_required_attribute(command_module, &1))
  end

  defp check_required_attribute(module, attribute) do
    unless Module.get_attribute(module, attribute) do
      raise RequiredAttributeMissingError, attribute: attribute, module: module
    end
  end
end