Gears - the way to control your logic

gears.rb

require 'active_support/all'
module Gears

  class Base
    private_class_method :new

    def initialize *methods
      attrs = methods.extract_options!

      self.class_eval{ attr_accessor *attrs.keys }
      attrs.each{ |attr, value| send "#{attr}=", value }
      methods.each { |name| send name }
    end

    def self.perform influence, attrs
      new *influence, attrs
    end

    def self.inherited subclass
      create_storage(subclass)
    end

    private

      def self.create_storage subclass
        subclass.const_set( 'Storage', Module.new do

          class << self
            def set key, *values
              unless respond_to? key
                singleton_class.instance_eval{ attr_accessor key }
                # TODO make different initial values dependent on their class.
                send "#{key}=", []
              end
              send(key).push *values
            end

            def get key
              send(key)
            end
          end

        end)
      end

  end
end

social.rb

class SocialGear < Gears::Base

  attr_reader :app_parameters

  def self.gather_app_parameters attrs = {}
    perform([ :authenticate,
              :fetch_account,
              :fill_facts,
              :fetch_application,
              :prepare_parameters ], attrs).app_parameters
  end


  private

  def authenticate
    puts "[Authenticate user form social network with params #{params}]"
  end

  def fetch_account
    puts "[Get user account]"
  end

  def fill_facts
    puts "[Store social facts]"
  end

  def fetch_application
    puts "[Get loading application]"
  end

  # Prepare the result of chain action
  def prepare_parameters
    @app_parameters = {}
  end

end

network_params = { app_id: 1234, user_id: 'id13434343' }
SocialGear.gather_app_parameters params: network_params