#pragmaticstudio attr_logger v2 - Now with setter, too!

module AttrLogger
  def self.included(base)
    base.extend ClassLevelMethods
  end

  module ClassLevelMethods
    def attr_logger(*args)
      args.each { |attribute|
        define_method(attribute) do
          value = instance_variable_get("@#{attribute}")
          STDERR.puts "#{Time.now} - GET - #{value}"
          return value
        end
        
        define_method("#{attribute}=") do |val|
          instance_variable_set("@#{attribute}", val)
          STDERR.puts "#{Time.now} - SET - #{val}"
        end
      }
    end
  end
end

class Person
  include AttrLogger

  attr_logger :first_name
  attr_logger :last_name

  def initialize
    @first_name = "John"
    @last_name = "Doe"
  end
end

john = Person.new
first = john.first_name
last = john.last_name
p first
p last

first = john.first_name = "Jonathan"
last = john.last_name = "Smith"
p first
p last