import { Clip, TimelineClipEntry, TimelineClipEntry as TimelineClipEntry$1, TimelineClipGroup, TimelineReadonly, Track } from "@techsquidtv/canvas-timeline-core";
//#region src/hooks/clips/timelineClipModel.d.ts
/**
 * Selected clip and track state derived from the current timeline snapshot.
 *
 * @template TrackKind - App-defined track kind.
 */
interface TimelineSelectionState<TrackKind = string> {
  /** Currently selected clip, or null when no clip is selected. */
  selectedClip: TimelineReadonly<Clip> | null;
  /** ID of the currently selected clip, or null when no clip is selected. */
  selectedClipId: string | null;
  /** ID of the track containing the selected clip, or null when no clip is selected. */
  selectedClipTrackId: string | null;
  /** All selected clips in track order. */
  selectedClips: TimelineReadonly<Clip>[];
  /** IDs of all selected clips in track order. */
  selectedClipIds: string[];
  /** Selected group when the primary selected clip belongs to one. */
  selectedGroup: TimelineReadonly<TimelineClipGroup> | null;
  /** Selected group id when the primary selected clip belongs to one. */
  selectedGroupId: string | null;
  /** Whether any clip or track is selected. */
  hasSelection: boolean;
  /** Currently selected track, or null when no track row is selected. */
  selectedTrack: TimelineReadonly<Track<TrackKind>> | null;
  /** ID of the currently selected track, or null when no track row is selected. */
  selectedTrackId: string | null;
}
/**
 * Flattens timeline tracks into stable clip entries.
 *
 * @param tracks - Timeline tracks to flatten.
 * @template TrackKind - App-defined track kind values carried by returned
 * entries.
 * @returns Flattened clip entries in track order.
 */
declare function flattenTimelineClips<TrackKind>(tracks: readonly TimelineReadonly<Track<TrackKind>>[]): TimelineClipEntry$1<TrackKind>[];
/**
 * Derives selected clip and track metadata from timeline tracks.
 *
 * @param tracks - Timeline tracks to inspect.
 * @param clipGroups - Clip group state used to derive selected group metadata.
 * @template TrackKind - App-defined track kind values carried by selected track
 * state.
 * @returns Current selection metadata.
 */
declare function deriveTimelineSelection<TrackKind>(tracks: readonly TimelineReadonly<Track<TrackKind>>[], clipGroups?: readonly TimelineReadonly<TimelineClipGroup>[]): TimelineSelectionState<TrackKind>;
//#endregion
export { type TimelineClipEntry, TimelineSelectionState, deriveTimelineSelection, flattenTimelineClips };
//# sourceMappingURL=timelineClipModel.d.mts.map