module Playbook::FlexDirection

def flex_direction_props
  selected_props = flex_direction_options.keys.select { |sk| try(sk) }
  return nil unless selected_props.present?
  selected_props.map do |k|
    flex_direction_value = send(k)
    if flex_direction_value.is_a?(Hash)
      flex_direction_value.map do |media_size, flex_value|
        "flex_direction_#{media_size}_#{flex_value.underscore}" if flex_direction_values.include? flex_value
      end
    else
      "flex_direction_#{flex_direction_value.underscore}" if flex_direction_values.include? flex_direction_value
    end
  end.compact.join(" ")
end