const { dirname, resolve } = require('path');
const { readdirSync, statSync } = require('fs');

module.exports = function (start, callback) {
  let dir = resolve('.', start);
  let tmp,
    stats = statSync(dir);

  if (!stats.isDirectory()) {
    dir = dirname(dir);
  }

  while (true) {
    tmp = callback(dir, readdirSync(dir));
    if (tmp) return resolve(dir, tmp);
    dir = dirname((tmp = dir));
    if (tmp === dir) break;
  }
};