defmodule ExToolChest do
  @moduledoc """
  Documentation for `ExToolChest`.
  """


  @doc """
  Convert a pid to a string

  ## Examples

      iex> ExToolChest.pid_to_string(IEx.Helpers.pid(0, 1, 2))
      "0.1.2"

  """
  def pid_to_string(pid) do
    pid_inspection = "#{inspect pid}" # gives the string "#PID<0.105.0>"
    pid_inspection
      |> String.slice(5, 100)
      |> String.trim(">")
  end

  @doc """
  Convert a pid to a list

  ## Examples

      iex> ExToolChest.pid_to_list(IEx.Helpers.pid(0, 1, 2))
      [0, 1, 2]

  """
  def pid_to_list(pid) do
    pid_to_string(pid)
      |> String.split(".")
      |> Enum.map(fn x -> String.to_integer(x) end)
  end

  @doc """
  Convert a pid to a tuple

  ## Examples

      iex> ExToolChest.pid_to_tuple(IEx.Helpers.pid(0, 1, 2))
      {0, 1, 2}

  """
  def pid_to_tuple(pid) do
    pid_to_string(pid)
      |> String.split(".")
      |> Enum.map(fn x -> String.to_integer(x) end)
      |> List.to_tuple
  end
end