herald

defmodule Herald.Application do
  # See https://hexdocs.pm/elixir/Application.html
  # for more information on OTP Applications
  @moduledoc false

  use Application

  def start(_type, _args) do
    children = 
      Application.get_env(:herald, :router)
      |> apply(:routes, [])
      |> Enum.map(fn {queue, _} = route_spec ->
        %{
          id: String.to_atom(queue),
          start: {
            Herald.AMQP.Subscriber,
            :start_link,
            [route_spec]
          }
        }
      end)

    # See https://hexdocs.pm/elixir/Supervisor.html
    # for other strategies and supported options
    opts = [strategy: :one_for_one, name: Herald.Supervisor]
    Supervisor.start_link(children, opts)
  end
end