'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var domToArray = require('bianco.dom-to-array');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var domToArray__default = /*#__PURE__*/_interopDefaultLegacy(domToArray);

/**
 * Split a string into several items separed by spaces
 * @param   { string } l - events list
 * @returns { Array } all the events detected
 * @private
 */
const split = l => l.split(/\s/);

/**
 * Set a listener for all the events received separated by spaces
 * @param   { HTMLElement|NodeList|Array } els     - DOM node/s where the listeners will be bound
 * @param   { string }                     evList  - list of events we want to bind or unbind space separated
 * @param   { Function }                   cb      - listeners callback
 * @param   { string }                     method  - either 'addEventListener' or 'removeEventListener'
 * @param   { Object }                     options - event options (capture, once and passive)
 * @returns { undefined }
 * @private
 */
function manageEvents(els, evList, cb, method, options) {
  els = domToArray__default["default"](els);

  split(evList).forEach((e) => {
    els.forEach(el => el[method](e, cb, options || false));
  });
}

/**
 * Set a listener for all the events received separated by spaces
 * @param   { HTMLElement|Array } els    - DOM node/s where the listeners will be bound
 * @param   { string }            evList - list of events we want to bind space separated
 * @param   { Function }          cb     - listeners callback
 * @param   { Object }            options - event options (capture, once and passive)
 * @returns { HTMLElement|NodeList|Array } DOM node/s and first argument of the function
 */
function add(els, evList, cb, options) {
  manageEvents(els, evList, cb, 'addEventListener', options);
  return els
}

/**
 * Set a listener using from a list of events triggering the callback only once
 * @param   { HTMLElement|Array } els     - DOM node where the listeners will be bound
 * @param   { string }            evList  - list of events we want to bind space separated
 * @param   { Function }          cb      - listeners callback
 * @param   { Object }             options - event options (capture, once and passive)
 * @returns { HTMLElement|NodeList|Array }  DOM node/s and first argument of the function
 */
function once(els, evList, cb, options) {
  manageEvents(els, evList, cb, 'addEventListener', Object.assign(options || {}, { once: true }));
  return els
}

/**
 * Remove all the listeners for the events received separated by spaces
 * @param   { HTMLElement|Array } els     - DOM node/s where the events will be unbind
 * @param   { string }            evList  - list of events we want unbind space separated
 * @param   { Function }          cb      - listeners callback
 * @param   { Object }             options - event options (capture, once and passive)
 * @returns { HTMLElement|NodeList|Array }  DOM node/s and first argument of the function
 */
function remove(els, evList, cb, options) {
  manageEvents(els, evList, cb, 'removeEventListener', options);
  return els
}

var index_next = {
  add,
  once,
  remove
};

exports.add = add;
exports["default"] = index_next;
exports.once = once;
exports.remove = remove;