defmodule ExPTY.Nif do
  @moduledoc false

  @on_load :load_nif
  def load_nif do
    nif_file = ~c"#{:code.priv_dir(:expty)}/expty"

    case :erlang.load_nif(nif_file, 0) do
      :ok -> :ok
      {:error, {:reload, _}} -> :ok
      {:error, {:load_failed, reason}} -> IO.puts("Failed to load nif: #{reason}")
      {:error, reason} -> IO.puts("Failed to load nif: #{reason}")
    end
  end

  def helper_path do
    case :os.type() do
      {:win32, _} ->
        nil

      _ ->
        "#{:code.priv_dir(:expty)}/spawn-helper"
    end
  end

  def spawn_win32(_file, _cols, _rows, _debug, _pipe_name, _inherit_cursor),
    do: :erlang.nif_error(:not_loaded)

  def spawn_unix(
        _file,
        _args,
        _env,
        _cwd,
        _cols,
        _rows,
        _ibaudrate,
        _obaudrate,
        _uid,
        _gid,
        _is_utf8,
        _closeFDs,
        _helperPath
      ),
      do: :erlang.nif_error(:not_loaded)

  def connect_win32(_pty_id, _command_line, _cwd, _env),
    do: :erlang.nif_error(:not_loaded)

  def write(_pty, _data),
    do: :erlang.nif_error(:not_loaded)

  def resize(_arg1, _cols, _rows),
    do: :erlang.nif_error(:not_loaded)

  def kill(_arg1, _signal),
    do: :erlang.nif_error(:not_loaded)

  def pause(_arg1),
    do: :erlang.nif_error(:not_loaded)

  def resume(_arg1),
    do: :erlang.nif_error(:not_loaded)
end