defmodule Molasses.Util do
  def convert_to_list(""), do: []
  def convert_to_list(nil), do: []
  def convert_to_list(non_empty_string) do
    non_empty_string 
    |> String.split(",") 
    |> Enum.map(fn (x) -> prepare_value(x) end)
  end 

  def prepare_value(x) do
    y = try do
      String.to_integer(x)
    rescue 
      _ -> x 
    end
    y
  end

  def return_bool("true"), do: true 
  def return_bool("false"), do: false 
end