# frozen_string_literal: true

module Amqp
  class AmqpService
    include Singleton

    def queue(queue_name, options = {})
      @queue ||= {}
      @queue[queue_name] ||= channel.queue queue_name, options
    end

    def exchange(exchange_name, exchange_type, options = {})
      @exchange ||= {}
      @exchange[exchange_name] ||= channel.exchange exchange_name, options.merge(type: exchange_type)
    end

    def default_exchange
      channel.default_exchange
    end

  private
    def channel
      @channel ||= connection.create_channel
    end

    def connection
      @connection ||= begin
        Bunny.new(amqp_config).tap do |conn|
          conn.start
        end
      end
    end

    def amqp_config
      AppConfig.amqp
    end
  end
end