ScotRuby exercise

class Configuration

  attr_accessor :tail_logs, :max_connections, :admin_password

  def app_server
     @app_server ||= AppServer.new
     yield(@app_server) if block_given?
     @app_server
  end

end

class AppServer
  attr_accessor :port, :admin_password

end

def configure
  config = Configuration.new
  yield(config)
  config
end

configuration = configure do |config|
  p config.class
  config.tail_logs = true
  config.max_connections = 55
  config.admin_password = 'secret'
  config.app_server do |app_server_config|
    app_server_config.port = 8808
    app_server_config.admin_password = config.admin_password
  end
end

p configuration.class # => Configuration
p configuration.tail_logs # => true
p configuration.admin_password
p configuration.app_server.admin_password # => 'secret'