scrabble.exs

defmodule Scrabble do
  @doc """
  Calculate the scrabble score for the word.
  """
  @spec score(String.t) :: non_neg_integer
  @scrabble_score %{a: 1, b: 3, c: 3, d: 2, e: 1, f: 4, g: 2, h: 4, i: 1, j: 8,
                    k: 5, l: 1, m: 3, n: 1, o: 1, p: 3, q: 10, r: 1, s: 1, t: 1,
                    u: 1, v: 4, w: 4, x: 8, y: 4, z: 10}


  def score(word) do
    word
    |> String.strip
    |> String.downcase
    |> String.split(~r{}, trim: true)
    |> Enum.reduce 0, fn(x, acc) -> @scrabble_score[String.to_atom x] + acc end
  end


  # Old way I was experiencing issues with before
  def old_score(word) do
    word
    |> String.strip
    |> String.downcase
    |> String.split(~r{}, trim: true)
    |> Enum.map &(@scrabble_score[String.to_atom &1])
    |> IO.inspect
    |> Enum.reduce fn(x, acc) -> x + acc end
  end

end