Function ensureTranscriptIndex

lib/topic-utils.ts:294–300

(
  existingIndex: TranscriptIndex | null,
  transcript: TranscriptSegment[],
)

}

function ensureTranscriptIndex(
  existingIndex: TranscriptIndex | null,
  transcript: TranscriptSegment[],
): TranscriptIndex {
  if (existingIndex) return existingIndex;
  return buildTranscriptIndex(transcript);
}

export function hydrateTopicsWithTranscript(
  topics: Topic[] | null | undefined,