SOR Tutorail - Lambda Kappa Pi - blocks

class AppServerConfig
  attr_accessor :port, :admin_password
end

class Configuration
  attr_accessor :tail_logs, :max_connections, :admin_password
  
  def initialize
    @app_server_config = AppServerConfig.new
  end
  
  def app_server # &another_block
    if block_given?
      yield @app_server_config
    else 
      @app_server_config
    end
  end
end 

def configure # &block
  configuration_class = Configuration.new
  yield configuration_class
  configuration_class
end


configuration = configure do |config|
  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.app_server.admin_password # => 'secret'