Echo TCP server in Elixir

defmodule EchoTcp do
  def start(port) do
    {:ok, socket} =
      :gen_tcp.listen(port, [:binary, packet: :line, active: false, reuseaddr: true])

    IO.puts("Echo server listening on port #{port}")
    accept_loop(socket)
  end

  defp accept_loop(socket) do
    {:ok, client} = :gen_tcp.accept(socket)
    spawn(fn -> handle_client(client) end)
    accept_loop(socket)
  end

  defp handle_client(socket) do
    case :gen_tcp.recv(socket, 0) do
      {:ok, data} ->
        :gen_tcp.send(socket, data)
        handle_client(socket)

      {:error, :closed} ->
        IO.puts("Client disconnected")

      {:error, reason} ->
        IO.puts("Error: #{inspect(reason)}")
    end
  end
end