import { BufferedSeekingInput } from "../BufferedSeekingInput.js";

//#region src/elements/EFMedia/videoTasks/ScrubInputCache.d.ts
/**
 * Cache for scrub BufferedSeekingInput instances.
 *
 * For JIT media (segmented scrub tracks), caches by src + segment ID.
 * For Asset media (single-file scrub tracks), caches by URL so all segments
 * share the same BufferedSeekingInput instance.
 *
 * Uses promise deduplication to prevent race conditions when multiple
 * concurrent requests arrive for the same segment.
 */
declare class ScrubInputCache {
  #private;
  constructor(maxCacheSize?: number, maxUrlCacheSize?: number);
  /**
   * Get or create BufferedSeekingInput for a scrub segment.
   *
   * Uses promise deduplication to prevent race conditions when multiple
   * concurrent requests arrive for the same segment.
   *
   * @param src - The source URL of the video (required to distinguish between videos)
   * @param segmentId - The segment ID
   * @param createInputFn - Factory function to create the input
   * @param scrubUrl - Optional URL for single-file scrub tracks (all segments share same input)
   */
  getOrCreateInput(src: string, segmentId: number, createInputFn: () => Promise<BufferedSeekingInput | undefined>, scrubUrl?: string): Promise<BufferedSeekingInput | undefined>;
  /**
   * Clear the entire cache (called when video changes).
   * Increments the generation counter so any in-flight promises resolved after
   * this call do not repopulate the cache with stale data from the old source.
   */
  clear(): void;
  /**
   * Get cache statistics
   */
  getStats(): {
    size: number;
    urlCacheSize: number;
    pendingCount: number;
    cacheKeys: string[];
  };
}
//#endregion
export { ScrubInputCache };
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