import { BandwidthCalculator } from "./bandwidth-calculator.js";
import { Segment, Stream } from "./types.js";

export type Playback = {
  position: number;
  rate: number;
};

/** Extends a Segment with a reference to its associated stream. */
export type SegmentWithStream<TStream extends Stream = Stream> = Segment & {
  readonly stream: StreamWithSegments<TStream>;
};

/**
 * A registered stream together with the core's live segment registry.
 * Internal: the public API exposes only the base stream (`Core.getStream`)
 * and a snapshot of the segment runtime IDs
 * (`Core.getStreamSegmentRuntimeIds`).
 */
export type StreamWithSegments<TStream extends Stream = Stream> = TStream & {
  readonly segments: Map<string, SegmentWithStream<TStream>>;
};

export type BandwidthCalculators = Readonly<{
  all: BandwidthCalculator;
  http: BandwidthCalculator;
}>;

export type StreamDetails = {
  isLive: boolean;
  activeLevelBitrate: number;
};