export function extractZillowStructuredPhotoCandidatesFromNextDataScript(scriptText) {
  if (typeof scriptText !== "string" || !scriptText.trim()) {
    return [];
  }

  let nextData;
  try {
    nextData = JSON.parse(scriptText);
  } catch {
    return [];
  }

  const cacheText = nextData?.props?.pageProps?.componentProps?.gdpClientCache;
  if (typeof cacheText !== "string" || !cacheText.trim()) {
    return [];
  }

  let cache;
  try {
    cache = JSON.parse(cacheText);
  } catch {
    return [];
  }

  const out = [];

  for (const entry of Object.values(cache)) {
    const photos = entry?.property?.responsivePhotos;
    if (!Array.isArray(photos)) continue;

    for (const photo of photos) {
      if (typeof photo?.url === "string" && photo.url) {
        out.push({ url: photo.url });
        continue;
      }

      const mixedSources = photo?.mixedSources;
      if (!mixedSources || typeof mixedSources !== "object") continue;

      let best = null;
      for (const variants of Object.values(mixedSources)) {
        if (!Array.isArray(variants)) continue;
        for (const variant of variants) {
          if (typeof variant?.url !== "string" || !variant.url) continue;
          const width = Number(variant.width || 0);
          if (!best || width > best.width) {
            best = { url: variant.url, width };
          }
        }
      }

      if (best) {
        out.push(best);
      }
    }
  }

  return out;
}