Function getTopicStartTime

lib/ai-processing.ts:1351–1395

(topic: {
  segments: { start: number; end: number }[];
  quote?: { timestamp?: string } | null;
})

}

function getTopicStartTime(topic: {
  segments: { start: number; end: number }[];
  quote?: { timestamp?: string } | null;
}): number {
  if (Array.isArray(topic.segments) && topic.segments.length > 0) {
    return topic.segments[0].start;
  }

  const rawTimestamp = topic.quote?.timestamp;
  if (!rawTimestamp) {
    return Infinity;
  }

  const cleaned = rawTimestamp.replace(/[\[\]]/g, '').trim();
  if (!cleaned) {
    return Infinity;
  }

  const parts = cleaned.split(/-|–|—| to /i);
  const startPart = parts[0]?.trim();
  if (!startPart) {
    return Infinity;
  }

  const timeSegments = startPart.split(':').map((part) => Number(part));
  if (timeSegments.some((segment) => Number.isNaN(segment))) {
    return Infinity;
  }

  if (timeSegments.length === 3) {
    const [hours, minutes, seconds] = timeSegments;
    return hours * 3600 + minutes * 60 + seconds;
  }

  if (timeSegments.length === 2) {
    const [minutes, seconds] = timeSegments;
    return minutes * 60 + seconds;
  }

  if (timeSegments.length === 1) {
    return timeSegments[0];
  }

  return Infinity;
}

function sanitizeThemeList(themes: string[]): string[] {
  const unique = new Set<string>();