defmodule Bwc do
  @moduledoc """
  The core module for the Blank White Cards game.
  """

  alias Bwc.{Repo, Card}

  @repo Repo

  @doc """
  List all cards.
  """
  def list_cards, do: @repo.all(Card)

  def get_card(id), do: @repo.get!(Card, id)

  def get_card_by(attrs), do: @repo.get_by(Card, attrs)

  def create_card(attrs), do: Card.changeset(%Card{},attrs) |> @repo.insert()

  def new_card, do: Card.changeset(%Card{})

  def size, do: Bwc.list_cards |> length

  def draw_card, do: Bwc.list_cards |> Enum.random
  def draw, do: draw_card()

  def delete_card(%Bwc.Card{} = card), do: @repo.delete(card)
  def delete_card!(%Bwc.Card{} = card), do: @repo.delete!(card)

  def update_card(%Bwc.Card{} = card, updates) do
    card
    |> Card.changeset(updates)
    |> @repo.update
  end

end