defmodule PotionIngredients.Utils.Messages do
  defmacro __using__(opts) do
    [messages: messages] = opts
    import PotionIngredients.Utils

    quote do
      def get_message(message) do
        paths =
          String.split(message, ".")
          |> Enum.map(fn path ->
            try do
              String.to_existing_atom(path)
            rescue
              _e -> nil
            end
          end)

        filtered = Enum.filter(paths, fn path -> !is_nil(path) end)
        same_length = length(filtered) == length(paths)
        iif(same_length == true, get_in(unquote(messages), filtered), nil)
      end
    end
  end
end