Function fetchFolderSummaryStats

public/js/fileListView.js:3176–3205

(folder, depthOverride, sourceId = '')

}

function fetchFolderSummaryStats(folder, depthOverride, sourceId = '') {
  if (!folder) return Promise.resolve(null);
  if (isSlowRemoteSource(sourceId)) {
    return Promise.resolve(null);
  }

  const depthSetting = Number.isFinite(depthOverride) ? depthOverride : getFileListSummaryDepth();
  const depth = Math.max(MIN_FILE_LIST_SUMMARY_DEPTH, Math.min(MAX_FILE_LIST_SUMMARY_DEPTH, depthSetting));
  const depthKey = depth > 0 ? String(depth) : 'u';
  const baseKey = folderCacheKey(folder, sourceId);
  const cacheKey = `${baseKey}::${depthKey}`;

  if (_folderSummaryCache.has(cacheKey)) {
    return _folderSummaryCache.get(cacheKey);
  }

  const depthParam = depth > 0 ? `&depth=${depth}` : '';
  const sourceParam = sourceId ? `&sourceId=${encodeURIComponent(sourceId)}` : '';
  const url = withBase(`/api/folder/isEmpty.php?folder=${encodeURIComponent(folder)}&deep=1${depthParam}${sourceParam}&t=${Date.now()}`);
  const p = _fetchJSONWithTimeout(url, 6000).then(data => {
    if (data && data.__fr_err) {
      _folderSummaryCache.delete(cacheKey);
      return null;
    }
    return data || null;
  });

  _folderSummaryCache.set(cacheKey, p);
  return p;
}

function clearFolderSummaryCache(folder, sourceId = '') {
  if (!folder) return;