text: 'use strict';
  
  /**
   * Abide module.
   * @module foundation.abide
   */
  
  export default class Abide {
    /**
     * Creates a new instance of Abide.
     * @class
     * @fires Abide#init
     * @param {Object} element - jQuery object to add the trigger to.
     * @param {Object} options - Overrides to the default plugin settings.
     */
    constructor(element, options = {}) {
      this.$element = element;
      this.options  = $.extend({}, Abide.defaults, this.$element.data(), options);
  
      this._init();
  
      Foundation.registerPlugin(this, 'Abide');
    }
  
    /**
     * Initializes the Abide plugin and calls functions to get Abide functioning on load.
     * @private
     */
    _init() {
      this.$inputs = this.$element.find('input, textarea, select').not('[data-abide-ignore]');
  
      this._events();
    }
  
    /**
     * Initializes events for Abide.
     * @private
     */
    _events() {
      this.$element.off('.abide')
        .on('reset.zf.abide', () => {
          this.resetForm();
        })
        .on('submit.zf.abide', () => {
          return this.validateForm();
        });
  
      if (this.options.validateOn === 'fieldChange') {
        this.$inputs
          .off('change.zf.abide')
          .on('change.zf.abide', (e) => {
            this.validateInput($(e.target));
          });
      }
  
      if (this.options.liveValidate) {
        this.$inputs
          .off('input.zf.abide')
          .on('input.zf.abide', (e) => {
            this.validateInput($(e.target));
          });
      }
    }
  
    /**
     * Calls necessary functions to update Abide upon DOM change
     * @private
     */
    _reflow() {
      this._init();
    }
  
    /**
     * Checks whether or not a form element has the required attribute and if it's checked or not
     * @param {Object} element - jQuery object to check for required attribute
     * @returns {Boolean} Boolean value depends on whether or not attribute is checked or empty
     */
    requiredCheck($el) {
      if (!$el.attr('required')) return true;
  
      var isGood = true;
  
      switch ($el[0].type) {
        case 'checkbox':
        case 'radio':
          isGood = $el[0].checked;
          break;
  
        case 'select':
        case 'select-one':
        case 'select-multiple':
          var opt = $el.find('option:selected');
          if (!opt.length || !opt.val()) isGood = false;
          break;
  
        default:
          if(!$el.val() || !$el.val().length) isGood = false;
      }
  
      return isGood;
    }
  
    /**
     * Based on $el, get the first element with selector in this order:
     * 1. The element's direct sibling('s).
     * 3. The element's parent's children.
     *
     * This allows for multiple form errors per input, though if none are found, no form errors will be shown.
     *
     * @param {Object} $el - jQuery object to use as reference to find the form error selector.
     * @returns {Object} jQuery object with the selector.
     */
    findFormError($el) {
      var $error = $el.siblings(this.options.formErrorSelector);
  
      if (!$error.length) {
        $error = $el.parent().find(this.options.formErrorSelector);
      }
  
      return $error;
    }
  
    /**
     * Get the first element in this order:
     * 2. The <label> with the attribute `[for="someInputId"]`
     * 3. The `.closest()` <label>
     *
     * @param {Object} $el - jQuery object to check for required attribute
     * @returns {Boolean} Boolean value depends on whether or not attribute is checked or empty
     */
    findLabel($el) {
      var id = $el[0].id;
      var $label = this.$element.find(`label[for="${id}"]`);
  
      if (!$label.length) {
        return $el.closest('label');
      }
  
      return $label;
    }
  
    /**
     * Adds the CSS error class as specified by the Abide settings to the label, input, and the form
     * @param {Object} $el - jQuery object to add the class to
     */
    addErrorClasses($el) {
      var $label = this.findLabel($el);
      var $formError = this.findFormError($el);
  
      if ($label.length) {
        $label.addClass(this.options.labelErrorClass);
      }
  
      if ($formError.length) {
        $formError.addClass(this.options.formErrorClass);
      }
  
      $el.addClass(this.options.inputErrorClass).attr('data-invalid', '');
    }
  
    /**
     * Removes CSS error class as specified by the Abide settings from the label, input, and the form
     * @param {Object} $el - jQuery object to remove the class from
     */
    removeErrorClasses($el) {
      var $label = this.findLabel($el);
      var $formError = this.findFormError($el);
  
      if ($label.length) {
        $label.removeClass(this.options.labelErrorClass);
      }
  
      if ($formError.length) {
        $formError.removeClass(this.options.formErrorClass);
      }
  
      $el.removeClass(this.options.inputErrorClass).removeAttr('data-invalid');
    }
  
    /**
     * Goes through a form to find inputs and proceeds to validate them in ways specific to their type
     * @fires Abide#invalid
     * @fires Abide#valid
     * @param {Object} element - jQuery object to validate, should be an HTML input
     * @returns {Boolean} goodToGo - If the input is valid or not.
     */
    validateInput($el) {
      var clearRequire = this.requiredCheck($el),
          validated = false,
          customValidator = true,
          validator = $el.attr('data-validator'),
          equalTo = true;
  
      switch ($el[0].type) {
        case 'radio':
          validated = this.validateRadio($el.attr('name'));
          break;
  
        case 'checkbox':
          validated = clearRequire;
          break;
  
        case 'select':
        case 'select-one':
        case 'select-multiple':
          validated = clearRequire;
          break;
  
        default:
          validated = this.validateText($el);
      }
  
      if (validator) {
        customValidator = this.matchValidation($el, validator, $el.attr('required'));
      }
  
      if ($el.attr('data-equalto')) {
        equalTo = this.options.validators.equalTo($el);
      }
  
      var goodToGo = [clearRequire, validated, customValidator, equalTo].indexOf(false) === -1;
      var message = (goodToGo ? 'valid' : 'invalid') + '.zf.abide';
  
      this[goodToGo ? 'removeErrorClasses' : 'addErrorClasses']($el);
  
      /**
       * Fires when the input is done checking for validation. Event trigger is either `valid.zf.abide` or `invalid.zf.abide`
       * Trigger includes the DOM element of the input.
       * @event Abide#valid
       * @event Abide#invalid
       */
      $el.trigger(message, [$el]);
  
      return goodToGo;
    }
  
    /**
     * Goes through a form and if there are any invalid inputs, it will display the form error element
     * @returns {Boolean} noError - true if no errors were detected...
     * @fires Abide#formvalid
     * @fires Abide#forminvalid
     */
    validateForm() {
      var acc = [];
      var _this = this;
  
      this.$inputs.each(function() {
        acc.push(_this.validateInput($(this)));
      });
  
      var noError = acc.indexOf(false) === -1;
  
      this.$element.find('[data-abide-error]').css('display', (noError ? 'none' : 'block'));
  
      /**
       * Fires when the form is finished validating. Event trigger is either `formvalid.zf.abide` or `forminvalid.zf.abide`.
       * Trigger includes the element of the form.
       * @event Abide#formvalid
       * @event Abide#forminvalid
       */
      this.$element.trigger((noError ? 'formvalid' : 'forminvalid') + '.zf.abide', [this.$element]);
  
      return noError;
    }
  
    /**
     * Determines whether or a not a text input is valid based on the pattern specified in the attribute. If no matching pattern is found, returns true.
     * @param {Object} $el - jQuery object to validate, should be a text input HTML element
     * @param {String} pattern - string value of one of the RegEx patterns in Abide.options.patterns
     * @returns {Boolean} Boolean value depends on whether or not the input value matches the pattern specified
     */
    validateText($el, pattern) {
      // pattern = pattern ? pattern : $el.attr('pattern') ? $el.attr('pattern') : $el.attr('type');
      pattern = (pattern || $el.attr('pattern') || $el.attr('type'));
      var inputText = $el.val();
  
      // if text, check if the pattern exists, if so, test it, if no text or no pattern, return true.
      return inputText.length ?
        this.options.patterns.hasOwnProperty(pattern) ? this.options.patterns[pattern].test(inputText) :
          pattern && pattern !== $el.attr('type') ?
            new RegExp(pattern).test(inputText) :
          true :
        true;
     }
  
    /**
     * Determines whether or a not a radio input is valid based on whether or not it is required and selected
     * @param {String} groupName - A string that specifies the name of a radio button group
     * @returns {Boolean} Boolean value depends on whether or not at least one radio input has been selected (if it's required)
     */
    validateRadio(groupName) {
      var $group = this.$element.find(`:radio[name="${groupName}"]`),
          counter = [],
          _this = this;
  
      $group.each(function(){
        var rdio = $(this),
            clear = _this.requiredCheck(rdio);
        counter.push(clear);
        if(clear) _this.removeErrorClasses(rdio);
      });
  
      return counter.indexOf(false) === -1;
    }
  
    /**
     * Determines if a selected input passes a custom validation function. Multiple validations can be used, if passed to the element with `data-validator="foo bar baz"` in a space separated listed.
     * @param {Object} $el - jQuery input element.
     * @param {String} validators - a string of function names matching functions in the Abide.options.validators object.
     * @param {Boolean} required - self explanatory?
     * @returns {Boolean} - true if validations passed.
     */
    matchValidation($el, validators, required) {
      required = required ? true : false;
  
      var clear = validators.split(' ').map((v) => {
        return this.options.validators[v]($el, required, $el.parent());
      });
      return clear.indexOf(false) === -1;
    }
  
    /**
     * Resets form inputs and styles
     * @fires Abide#formreset
     */
    resetForm() {
      var $form = this.$element,
          opts = this.options;
  
      $(`.${opts.labelErrorClass}`, $form).not('small').removeClass(opts.labelErrorClass);
      $(`.${opts.inputErrorClass}`, $form).not('small').removeClass(opts.inputErrorClass);
      $(`${opts.formErrorSelector}.${opts.formErrorClass}`).removeClass(opts.formErrorClass);
      $form.find('[data-abide-error]').css('display', 'none');
      $(':input', $form).not(':button, :submit, :reset, :hidden, [data-abide-ignore]').val('').removeAttr('data-invalid');
      /**
       * Fires when the form has been reset.
       * @event Abide#formreset
       */
      $form.trigger('formreset.zf.abide', [$form]);
    }
  
    /**
     * Destroys an instance of Abide.
     * Removes error styles and classes from elements, without resetting their values.
     */
    destroy() {
      var _this = this;
      this.$element
        .off('.abide')
        .find('[data-abide-error]')
          .css('display', 'none');
  
      this.$inputs
        .off('.abide')
        .each(function() {
          _this.removeErrorClasses($(this));
        });
  
      Foundation.unregisterPlugin(this);
    }
  }
  
  /**
   * Default settings for plugin
   */
  Abide.defaults = {
    /**
     * The default event to validate inputs. Checkboxes and radios validate immediately.
     * Remove or change this value for manual validation.
     * @option
     * @example 'fieldChange'
     */
    validateOn: 'fieldChange',
  
    /**
     * Class to be applied to input labels on failed validation.
     * @option
     * @example 'is-invalid-label'
     */
    labelErrorClass: 'is-invalid-label',
  
    /**
     * Class to be applied to inputs on failed validation.
     * @option
     * @example 'is-invalid-input'
     */
    inputErrorClass: 'is-invalid-input',
  
    /**
     * Class selector to use to target Form Errors for show/hide.
     * @option
     * @example '.form-error'
     */
    formErrorSelector: '.form-error',
  
    /**
     * Class added to Form Errors on failed validation.
     * @option
     * @example 'is-visible'
     */
    formErrorClass: 'is-visible',
  
    /**
     * Set to true to validate text inputs on any value change.
     * @option
     * @example false
     */
    liveValidate: false,
  
    patterns: {
      alpha : /^[a-zA-Z]+$/,
      alpha_numeric : /^[a-zA-Z0-9]+$/,
      integer : /^[-+]?\d+$/,
      number : /^[-+]?\d*(?:[\.\,]\d+)?$/,
  
      // amex, visa, diners
      card : /^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$/,
      cvv : /^([0-9]){3,4}$/,
  
      // http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#valid-e-mail-address
      email : /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$/,
  
      url : /^(https?|ftp|file|ssh):\/\/(((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/,
      // abc.de
      domain : /^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,8}$/,
  
      datetime : /^([0-2][0-9]{3})\-([0-1][0-9])\-([0-3][0-9])T([0-5][0-9])\:([0-5][0-9])\:([0-5][0-9])(Z|([\-\+]([0-1][0-9])\:00))$/,
      // YYYY-MM-DD
      date : /(?:19|20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))$/,
      // HH:MM:SS
      time : /^(0[0-9]|1[0-9]|2[0-3])(:[0-5][0-9]){2}$/,
      dateISO : /^\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}$/,
      // MM/DD/YYYY
      month_day_year : /^(0[1-9]|1[012])[- \/.](0[1-9]|[12][0-9]|3[01])[- \/.]\d{4}$/,
      // DD/MM/YYYY
      day_month_year : /^(0[1-9]|[12][0-9]|3[01])[- \/.](0[1-9]|1[012])[- \/.]\d{4}$/,
  
      // #FFF or #FFFFFF
      color : /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/
    },
  
    /**
     * Optional validation functions to be used. `equalTo` being the only default included function.
     * Functions should return only a boolean if the input is valid or not. Functions are given the following arguments:
     * el : The jQuery element to validate.
     * required : Boolean value of the required attribute be present or not.
     * parent : The direct parent of the input.
     * @option
     */
    validators: {
      equalTo: function (el, required, parent) {
        return $(`#${el.attr('data-equalto')}`).val() === el.val();
      }
    }
  }
  
  // Window exports
  if (window.Foundation) {
    window.Foundation.plugin(Abide, 'Abide');
  }
  