Function deleteFolder

static/js/catalog.js:590–605

(folderId)

}

function deleteFolder(folderId) {
  if (folderId === TRASH_ID || folderId === UNSORTED_ID) return;
  // Cascade: delete children first.
  for (const child of folders.filter((f) => f.parentId === folderId)) deleteFolder(child.id);
  const idx = folders.findIndex((f) => f.id === folderId);
  if (idx === -1) return;
  const [folder] = folders.splice(idx, 1);
  const trash = getTrashFolder();
  for (const trackId of folder.items) {
    if (tracks[trackId] && trash && !trash.items.includes(trackId)) {
      trash.items.unshift(trackId);
    }
  }
  saveState();
  render();
}

function reorderFolder(draggedId, targetId, before) {
  if (draggedId === targetId) return;