function detectUuids(obj) {
  let Q = [ obj ];
  let matches = {};

  while (Q.length > 0) {
    let item = Q.pop();

    if (!item)
      continue;
      
    if (typeof(item) === 'string') {
      // use regexes
      let rx = /[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{15}/g;
      for (let m = rx.exec(item); m; m = rx.exec(item))
        matches[m[0]] = true;

    } else if (typeof(item) === 'object') {
      Object.keys(item).map(k => Q.push(item[k]));
    }
  }

  matches = Object.keys(matches);

  return matches;
}

export default detectUuids;