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lib/grizzly/indicator.ex
defmodule Grizzly.Indicator do
@moduledoc """
Indicator handling for Grizzly when an indicator event is triggered
See `Grizzly.Supervisor` for configuring the dispatcher that Grizzly should
use during runtime.
"""
require Logger
@type event() :: :on | :off
@type dispatcher() :: (event() -> :ok)
@doc """
Handles an event from `BEAMNotify`
"""
@spec handle_event([String.t()], %{String.t() => String.t()}, dispatcher()) :: :ok
def handle_event(event, _env, nil) do
Logger.debug("Received indicator event: #{inspect(event)}")
end
def handle_event(event, _env, dispatcher) do
case Integer.parse(hd(event)) do
{0, _} -> dispatcher.(:off)
{v, _} when v > 1 -> dispatcher.(:on)
:error -> Logger.debug("Received unexpected indicator event: #{inspect(event)}")
end
end
end