defmodule HashRing.App do
  @moduledoc false
  use Application
  require Logger

  def start(_type, _args) do
    # Start the ring supervisor
    {:ok, pid} = DynamicSupervisor.start_link(name: HashRing.Supervisor, strategy: :one_for_one)

    spec = %{
      id: HashRing.Worker,
      start: {HashRing.Worker, :start_link, [[restart: :transient, name: HashRing.Worker]]}
    }

    _ = DynamicSupervisor.start_child(HashRing.Supervisor, spec)

    # Add any preconfigured rings
    Enum.each(Application.get_env(:libring, :rings, []), fn
      {name, config} ->
        {:ok, _pid} = HashRing.Managed.new(name, config)
        Logger.info("[libring] started managed ring #{inspect(name)}")

      name when is_atom(name) ->
        {:ok, _pid} = HashRing.Managed.new(name)
        Logger.info("[libring] started managed ring #{inspect(name)}")
    end)

    # Application started
    {:ok, pid}
  end
end