#
# This file is part of Astarte.
#
# Copyright 2018 Ispirata Srl
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

defmodule Astarte.AppEngine.API.Rooms.RoomsSupervisor do
  use DynamicSupervisor

  alias Astarte.AppEngine.API.Rooms.Room

  def start_link(args) do
    DynamicSupervisor.start_link(__MODULE__, args, name: __MODULE__)
  end

  def start_room(realm, room_name) do
    DynamicSupervisor.start_child(__MODULE__, {Room, realm: realm, room_name: room_name})
  end

  def room_started?(room_name) do
    case Registry.lookup(Registry.AstarteRooms, room_name) do
      [] ->
        false

      [{_pid, _value}] ->
        true
    end
  end

  def init(_args) do
    DynamicSupervisor.init(strategy: :one_for_one)
  end
end
