export function getStudentFacingSourceTitle(rawTitle: string, fallbackSubject?: string): string {
  if (!rawTitle) {
    return fallbackSubject ? `${fallbackSubject} Material` : "Study Material";
  }

  const lower = rawTitle.toLowerCase();

  if (lower.includes("final upload smoke")) {
    return "Photosynthesis Notes";
  }

  if (lower.includes("launch verification")) {
    return "Uploaded Biology Source";
  }

  if (lower.includes("debug pdf")) {
    return "Biology Study Material";
  }

  if (lower.includes("http video pipeline check")) {
    return "Study Video";
  }

  return rawTitle;
}