defmodule Gyx.Helpers.Python do
  @moduledoc """
  This module contains proxy functions to interact
  with Python processes via [Erlport](http://erlport.org/docs/python.html)
  """

  @doc """
   Start python instance with custom modules dir `priv/python`
  """
  def start() do
    path =
      [
        :code.priv_dir(:gyx),
        "python"
      ]
      |> Path.join()

    {:ok, pid} =
      :python.start([
        {:python, 'python3'},
        {:python_path, to_charlist(path)}
      ])

    pid
  end

  def call(pid, m, f, a \\ []) do
    :python.call(pid, m, f, a)
  end

  def cast(pid, message) do
    :python.cast(pid, message)
  end

  def stop(pid) do
    :python.stop(pid)
  end
end