class ActiveJob::QueueAdapters::AmazonSqsAdapter

def _enqueue(job, send_message_opts = {})
  body = job.serialize
  queue_url = Aws::Rails::SqsActiveJob.config.queue_url_for(job.queue_name)
  send_message_opts[:queue_url] = queue_url
  send_message_opts[:message_body] = Aws::Json.dump(body)
  send_message_opts[:message_attributes] = message_attributes(job)
  if Aws::Rails::SqsActiveJob.fifo?(queue_url)
    # job_id is unique per initialization of job
    # Remove it from message dup id to ensure run-once behavior
    # with ActiveJob retries
     send_message_opts[:message_deduplication_id] =
       Digest::SHA256.hexdigest(
         Aws::Json.dump(body.except('job_id'))
       )
     send_message_opts[:message_group_id] = Aws::Rails::SqsActiveJob.config.message_group_id
  end
  Aws::Rails::SqsActiveJob.config.client.send_message(send_message_opts)
end

def enqueue(job)
  _enqueue(job)
end

def enqueue_at(job, timestamp, opts={})
  delay = (timestamp - Time.now.to_f).floor
  raise ArgumentError, 'Unable to queue a job with a delay great than 15 minutes' if delay > 15.minutes
  _enqueue(job, delay_seconds: delay)
end

def message_attributes(job)
  {
    'aws_sqs_active_job_class' => {
      string_value: job.class.to_s,
      data_type: 'String'
    },
    'aws_sqs_active_job_version' => {
      string_value: Aws::Rails::VERSION,
      data_type: 'String'
    }
  }
end