/*
 * Global util js
 * Based on Bootstrap's (v4.1.0) `util.js`
 */
var Util = function ($) {
  var MAX_UID = 1000000;
  var MILLISECONDS_MULTIPLIER = 1000;
  var transition = false;

  function getSpecialTransitionEndEvent() {
    return {
      bindType: transition.end,
      delegateType: transition.end,
      handle: function handle(event) {
        if ($(event.target).is(this)) {
          return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
        }

        return undefined; // eslint-disable-line no-undefined
      }
    };
  }

  function setTransitionEndSupport() {
    transition = transitionEndTest();
    $.fn.emulateTransitionEnd = transitionEndEmulator;

    if (Util.supportsTransitionEnd()) {
      $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
    }
  }

  function toType(obj) {
    return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
  }

  function transitionEndEmulator(duration) {
    var _this = this;

    var called = false;
    $(this).one(Util.TRANSITION_END, function () {
      called = true;
    });
    setTimeout(function () {
      if (!called) {
        Util.triggerTransitionEnd(_this);
      }
    }, duration);
    return this;
  }

  function transitionEndTest() {
    if (typeof window !== 'undefined' && window.QUnit) {
      return false;
    }

    return {
      end: 'transitionend'
    };
  }

  var Util = {
    TRANSITION_END: 'mdTransitionEnd',
    getSelectorFromElement: function getSelectorFromElement(element) {
      var selector = element.getAttribute('data-target');

      if (!selector || selector === '#') {
        selector = element.getAttribute('href') || '';
      }

      try {
        var $selector = $(document).find(selector);
        return $selector.length > 0 ? selector : null;
      } catch (err) {
        return null;
      }
    },
    getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
      if (!element) {
        return 0;
      }

      var transitionDuration = $(element).css('transition-duration');

      if (!transitionDuration) {
        return 0;
      }

      transitionDuration = transitionDuration.split(',')[0];
      return parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER;
    },
    getUID: function getUID(prefix) {
      do {
        // eslint-disable-next-line no-bitwise
        prefix += ~~(Math.random() * MAX_UID);
      } while (document.getElementById(prefix));

      return prefix;
    },
    isElement: function isElement(obj) {
      return (obj[0] || obj).nodeType;
    },
    reflow: function reflow(element) {
      return element.offsetHeight;
    },
    supportsTransitionEnd: function supportsTransitionEnd() {
      return Boolean(transition);
    },
    triggerTransitionEnd: function triggerTransitionEnd(element) {
      $(element).trigger(transition.end);
    },
    typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
      for (var property in configTypes) {
        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
          var expectedTypes = configTypes[property];
          var value = config[property];
          var valueType = value && Util.isElement(value) ? 'element' : toType(value);

          if (!new RegExp(expectedTypes).test(valueType)) {
            throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
          }
        }
      }
    }
  };
  setTransitionEndSupport();
  return Util;
}($);