defmodule Ami.Question do
  use Ecto.Schema

  alias Ami.{
    Quiz,
    Answer
  }

  schema "questions" do
    field(:correct_answers, :string)
    field(:value, :string)
    field(:label, :string)
    field(:position, :integer)

    belongs_to(:quiz, Quiz)

    has_many(:answers, Answer)
  end

  @doc """
      Extract the values as array from question values string
  """
  def extract_options(value) when is_nil(value), do: []

  def extract_options(value) do
    String.replace(value, ~r/\[|\]/, " ")
    |> String.split("\",")
    |> Enum.map(&String.replace(&1, ~r/\"/, ""))
    |> Enum.map(&String.trim(&1))
  end
end