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require 'resque'
require 'active_support/core_ext/enumerable'
require 'active_support/core_ext/array/access'

begin
  require 'resque-scheduler'
rescue LoadError
  begin
    require 'resque_scheduler'
  rescue LoadError
    false
  end
end

module ActiveJob
  module QueueAdapters
    # == Resque adapter for Active Job
    #
    # Resque (pronounced like "rescue") is a Redis-backed library for creating
    # background jobs, placing those jobs on multiple queues, and processing
    # them later.
    #
    # Read more about Resque {here}[https://github.com/resque/resque].
    #
    # To use Resque set the queue_adapter config to +:resque+.
    #
    #   Rails.application.config.active_job.queue_adapter = :resque
    class ResqueAdapter
      class << self
        def enqueue(job) #:nodoc:
          Resque.enqueue_to job.queue_name, JobWrapper, job.serialize
        end

        def enqueue_at(job, timestamp) #:nodoc:
          unless Resque.respond_to?(:enqueue_at_with_queue)
            raise NotImplementedError, "To be able to schedule jobs with Resque you need the " \
              "resque-scheduler gem. Please add it to your Gemfile and run bundle install"
          end
          Resque.enqueue_at_with_queue job.queue_name, timestamp, JobWrapper, job.serialize
        end
      end

      class JobWrapper #:nodoc:
        class << self
          def perform(job_data)
            Base.execute job_data
          end
        end
      end
    end
  end
end