Elegant Delayed Job for Shopify

DJ

# here comes 1, 2, 200, or even 603 id's
get '/orders/do_it_man/?' do
  if ShopifyAPI.credit_left > 0
    Delayed::Job.enqueue(Hookah::Pipe.new(current_shop.site, params[:ids]))   # <-- regular run, we have some credit...
  else
    Delayed::Job.enqueue(Hookah::Pipe.new(current_shop.site, params[:ids]), 0, 601.seconds.from_now)    # <--- no credit, run later
  end 
end

module Hookah
  class Pipe < DynamicJob
  
    def initialize(url, list)
      @url = url
      @list = list
      super()
    end
    
    def perform
      ActiveResource::Base.site = @url
      index = @list.length
      @list.each_index do |i|
        id = @list[i]
        if id.to_i > 0
          credit = ShopifyAPI.credit_left
          if credit > 2
            order = ShopifyAPI::Order.find(id)
            order.note = "Thanks for helping out with this Chris"
            order.save
          else
            index = i      # <-- let us know where to continue 
            break
          end
        end
      end
      if index < @list.length     # <-- only run if we need to
        # not enough API calls
        Delayed::Job.enqueue(
          Hookah::Pipe.new(@url, @list[index,@list.length]), # the job
          0,                                                 # a priority of 0 is nice
          601.seconds.from_now                               # wait 10 minutes to run  
        )
      end
    end
    
  end
end