defmodule PotionIngredients.Utils do
  defmacro iif(clause, expression, otherwise) do
    quote do
      if(unquote(clause)) do
        unquote(expression)
      else
        unquote(otherwise)
      end
    end
  end

  def to_map(enum) when is_map(enum) do
    Map.keys(enum)
    |> Enum.reduce(Map.new(%{}), fn key, acc ->
      Map.put(acc, key, to_map(Map.get(enum, key)))
    end)
  end

  def to_map(enum) when is_list(enum) do
    Enum.map(enum, fn e -> to_map(e) end)
  end

  def to_map(enum) do
    enum
  end

  def to_json(enum) when is_map(enum) do
    enum
    |> Map.keys()
    |> Enum.reduce(%{}, fn field, acc ->
      Map.put(acc, String.to_atom(field), to_json(Map.get(enum, field)))
    end)
  end

  def to_json(enum) when is_list(enum) do
    Enum.map(enum, fn e -> to_json(e) end)
  end

  def to_json(enum) do
    enum
  end
end