import { JobSamplingContext, SamplingConfig } from "./types.mjs";
import { SamplingController } from "./runtime.mjs";
import { Context } from "@opentelemetry/api";
import { ReadableSpan, Span as Span$1, SpanProcessor } from "@opentelemetry/sdk-trace-base";

//#region src/sampling/activation_span_processor.d.ts
/**
 * Converts a root span into a job sampling context.
 */
type JobSamplingContextExtractor = (span: Span$1) => JobSamplingContext | undefined;
/**
 * Default extractor for OpenTelemetry messaging job spans.
 */
declare const defaultJobSamplingContextExtractor: JobSamplingContextExtractor;
/**
 * Applies Monocle sampling rules to job root spans created by third-party
 * instrumentations that do not expose their own sampling hook.
 */
declare class SamplingActivationSpanProcessor implements SpanProcessor {
  #private;
  constructor(options: {
    sampling: SamplingConfig;
    controller?: SamplingController;
    extractor?: JobSamplingContextExtractor;
  });
  /**
   * Registers matching job root traces in the sampling controller.
   */
  onStart(span: Span$1, _parentContext: Context): void;
  /**
   * This processor only activates sampling state when spans start.
   */
  onEnd(_span: ReadableSpan): void;
  /**
   * No-op because this processor does not export data.
   */
  forceFlush(): Promise<void>;
  /**
   * No-op because this processor does not own external resources.
   */
  shutdown(): Promise<void>;
}
//#endregion
export { JobSamplingContextExtractor, SamplingActivationSpanProcessor, defaultJobSamplingContextExtractor };