defmodule Pour do
  @moduledoc ~S"""

  """

  @spec stream(Enumerables.t() | [Enumerables.t()], keyword()) :: Enumerable.t()
  def stream(enumerables, opts \\ [])

  def stream([] = enumerable, opts) do
    stream([enumerable], opts)
  end

  def stream([_ | _] = enumerables, opts) do
    start = if Keyword.get(opts, :link, true), do: :start_link, else: :start
    args = [enumerables, opts]

    case apply(Pour.Sink, start, args) do
      {:ok, pid} ->
        Pour.Sink.stream(pid)

      {:error, reason} ->
        exit({reason, {__MODULE__, :stream}})
    end
  end
end