defmodule UsePing do
  use PingServer, interval: 1_000

  def start_link(thing) do
    # You can start link this way.  It will call PingServer.init(thing)
    PingServer.start_link(__MODULE__, thing, [])
  end

  def init(sdf) do
    PingServer.init(self())
    {:ok, sdf}
  end

  def handle_ping(state) do
    IO.inspect(state)
    # Even though the interval is 10 seconds, we can make it be every 1 second this way
    PingServer.ping_after(self(), 1_000)
  end

  def handle_info(:manual_ping, state) do
    # only one ping will happen but it will happen pretty much right away.
    PingServer.ping(self())
    PingServer.ping(self())
    PingServer.ping(self())
    {:noreply, state}
  end
end