Class: Layered::Assistant::ChunkService

Inherits:
Object
  • Object
show all
Defined in:
app/services/layered/assistant/chunk_service.rb

Constant Summary collapse

STOP_CHECK_INTERVAL = 
25
BROADCAST_INTERVAL_MS = 
25

Instance Method Summary collapse

Constructor Details

#initialize(message, provider:, started_at: nil) ⇒ ChunkService

Returns a new instance of ChunkService.



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# File 'app/services/layered/assistant/chunk_service.rb', line 7

def initialize(message, provider:, started_at: nil)
  @message = message
  @parser = ChunkParser.new(provider.protocol)
  @timer = ResponseTimer.new
  @timer.start! if started_at
  @input_tokens = 0
  @output_tokens = 0
  @chunk_count = 0
  @stopped = false
  @last_broadcast_at = 0
  @broadcast_pending = false
end

Instance Method Details

#call(chunk) ⇒ Object 



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# File 'app/services/layered/assistant/chunk_service.rb', line 24

def call(chunk)
  return if @stopped

  @chunk_count += 1
  if @chunk_count % STOP_CHECK_INTERVAL == 0
    @stopped = @message.reload.stopped?
    if @stopped
      attrs = @timer.timing_attrs
      unless attrs.empty?
        @message.update!(attrs)
        @message.broadcast_updated
      end
      return
    end
  end

  Rails.logger.debug { "[ChunkService] #{chunk.inspect}" }
  text = @parser.text(chunk)
  @input_tokens  = @parser.input_tokens(chunk)  || @input_tokens
  @output_tokens = @parser.output_tokens(chunk) || @output_tokens

  if text
    @timer.record_first_token!
    @message.update!(content: (@message.content || "") + text)
    broadcast_throttled
  end

  if @parser.finished?(chunk) || @parser.usage_ready?(chunk)
    save_token_usage
    @message.broadcast_streaming_content if @broadcast_pending
    @message.broadcast_updated
  end
end

#mark_started! ⇒ Object 



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# File 'app/services/layered/assistant/chunk_service.rb', line 20

def mark_started!
  @timer.start!
end