import { fs } from "./fs.js";
import { path } from "./path.js";
/**
recursively remove all folders onto absolutePath if they are empty.

The `absoluteDeletedPath` must be a file or folder path that was just deleted.
 */
export const removeEmptyFoldersRecursive = async (
  absoluteDeletedPath: string,
): Promise<void> => {
  // NB: one folder up
  const absoluteFolderPath = path.parse(absoluteDeletedPath).dir;
  if (!fs.existsSync(absoluteFolderPath)) {
    // Basecase: the folder doesn't exist
    return;
  }
  const names = await fs.readdir(absoluteFolderPath, "utf8");
  if (names.length > 0) {
    // Basecase: the folder is not empty
    return;
  }

  // console.log(`removing ${absoluteFolderPath}`);

  // The folder is empty. Remove the folder and only the folder (non-recursive, non-force)
  await fs.rm(absoluteFolderPath, { recursive: true, force: false });

  // Folder removed. Now go one folder up, and see if that has any files.
  return removeEmptyFoldersRecursive(absoluteFolderPath);
};