import lodash_isEmpty from "lodash-es/isEmpty";

export function uniqueId() {
  return 'f'
    + Math.random().toString(16).replace('.', '')
    + (+new Date()).toString(16);
}

export function keyBy(array, keyfunc) {
  let result = {};
  for(let item of array) {
    if (typeof keyfunc == 'string') {
      result[item[keyfunc]] = item;
    } else {
      result[keyfunc(item)] = item;
    }
  }
  return result;
}

export function objCopy(object) {
  return JSON.parse(JSON.stringify(object));
}

export function castId(id) {
  //return id.toString();
  return +id;
}

// like _.isEmpty, but less stupid
export function isEmpty(object) {
  if (typeof object == 'number') {
    return false;
  }

  if (object === true) {
    return false;
  }

  if (typeof object == 'string') {
    return object.length === 0;
  }

  return lodash_isEmpty(object)
}

export function qs(s) { return document.querySelector(s); }
export function qss(s) { return document.querySelectorAll(s); }