defmodule X3m.System.Facade.Supervisor do
  use Supervisor
  import Cachex.Spec

  def start_link(facade_module, facade_name, opts \\ []) do
    Supervisor.start_link(__MODULE__, {facade_module, facade_name, opts}, name: _name(facade_name))
  end

  def init({facade_module, facade_name, opts}) do
    children = [
      worker(Cachex, [_cache_name(facade_name), [expiration: expiration(interval: 10_000)]]),
      supervisor(Task.Supervisor, [[name: _request_sup_name(facade_name)]]),
      worker(facade_module, [
        _request_sup_name(facade_name),
        _cache_name(facade_name),
        Keyword.put(opts, :name, facade_name)
      ])
    ]

    supervise(children, strategy: :one_for_one)
  end

  defp _name({:global, facade_name}),
    do: _name(facade_name)

  defp _name(facade_name),
    do: Module.concat(facade_name, Supervisor)

  defp _request_sup_name({:global, facade_name}),
    do: _request_sup_name(facade_name)

  defp _request_sup_name(facade_name),
    do: Module.concat(facade_name, RequestHandler)

  defp _cache_name({:global, facade_name}),
    do: _cache_name(facade_name)

  defp _cache_name(facade_name),
    do: Module.concat(facade_name, RequestCache)
end