class SplitIoClient::SSE::Workers::SegmentsWorker

def add_to_queue(change_number, segment_name)
  item = { change_number: change_number, segment_name: segment_name }
  @config.logger.debug("SegmentsWorker add to queue #{item}")
  @queue.push(item)
end

def initialize(synchronizer, config, segments_repository)
  @synchronizer = synchronizer
  @config = config
  @segments_repository = segments_repository
  @queue = Queue.new
  @running = Concurrent::AtomicBoolean.new(false)
end

def perform
  while (item = @queue.pop)
    segment_name = item[:segment_name]
    cn = item[:change_number]
    @config.logger.debug("SegmentsWorker change_number dequeue #{segment_name}, #{cn}")
    @synchronizer.fetch_segment(segment_name, cn)
  end
end

def perform_thread
  @config.threads[:segment_update_worker] = Thread.new do
    @config.logger.debug('Starting segments worker ...') if @config.debug_enabled
    perform
  end
end

def start
  if @running.value
    @config.logger.debug('segments worker already running.')
    return
  end
  @running.make_true
  perform_thread
end

def stop
  unless @running.value
    @config.logger.debug('segments worker not running.')
    return
  end
  @running.make_false
  SplitIoClient::Helpers::ThreadHelper.stop(:segment_update_worker, @config)
end