# Source: scripts_es6.js

    "use strict";

    var cf7signature_resized = 0; // for compatibility with contact-form-7-signature-addon

    var wpcf7cf_timeout;
    var wpcf7cf_change_time_ms = 100;

    if (window.wpcf7cf_running_tests) {
        jQuery('input[name="_wpcf7cf_options"]').each(function(e) {
            var $input = jQuery(this);
            var opt = JSON.parse($input.val());
            opt.settings.animation_intime = 0;
            opt.settings.animation_outtime = 0;
            $input.val(JSON.stringify(opt));
        });
        wpcf7cf_change_time_ms = 0;
    }

    var wpcf7cf_show_animation = { "height": "show", "marginTop": "show", "marginBottom": "show", "paddingTop": "show", "paddingBottom": "show" };
    var wpcf7cf_hide_animation = { "height": "hide", "marginTop": "hide", "marginBottom": "hide", "paddingTop": "hide", "paddingBottom": "hide" };

    var wpcf7cf_show_step_animation = { "opacity": "show" };
    var wpcf7cf_hide_step_animation = { "opacity": "hide" };

    var wpcf7cf_change_events = 'input.wpcf7cf paste.wpcf7cf change.wpcf7cf click.wpcf7cf propertychange.wpcf7cf';

    var wpcf7cf_forms = [];

    window.wpcf7cf_dom = {};

    const wpcf7cf_reload_dom = function($form) {
        wpcf7cf_dom = wpcf7cf.get_simplified_dom_model($form[0]);
    }

    const wpcf7cf_getFieldsByOriginalName = function(originalName) {
        return Object.values(wpcf7cf_dom).filter(function (inputField) {
            return inputField.original_name === originalName || inputField.original_name === originalName+'[]';
        });
    }

    const wpcf7cf_getFieldByName = function(name) {
        return wpcf7cf_dom[name] || wpcf7cf_dom[name+'[]'];
    }

    // endsWith polyfill
    if (!String.prototype.endsWith) {
    	String.prototype.endsWith = function(search, this_len) {
    		if (this_len === undefined || this_len > this.length) {
    			this_len = this.length;
    		}
    		return this.substring(this_len - search.length, this_len) === search;
    	};
    }

    // Object.values polyfill
    if (!Object.values) Object.values = o=>Object.keys(o).map(k=>o[k]);

    // Array.from polyfill
    if (!Array.from) {
        Array.from = (function () {
          var toStr = Object.prototype.toString;
          var isCallable = function (fn) {
            return typeof fn === 'function' || toStr.call(fn) === '[object Function]';
          };
          var toInteger = function (value) {
            var number = Number(value);
            if (isNaN(number)) { return 0; }
            if (number === 0 || !isFinite(number)) { return number; }
            return (number > 0 ? 1 : -1) * Math.floor(Math.abs(number));
          };
          var maxSafeInteger = Math.pow(2, 53) - 1;
          var toLength = function (value) {
            var len = toInteger(value);
            return Math.min(Math.max(len, 0), maxSafeInteger);
          };

          // The length property of the from method is 1.
          return function from(arrayLike/*, mapFn, thisArg */) {
            // 1. Let C be the this value.
            var C = this;

            // 2. Let items be ToObject(arrayLike).
            var items = Object(arrayLike);

            // 3. ReturnIfAbrupt(items).
            if (arrayLike == null) {
              throw new TypeError("Array.from requires an array-like object - not null or undefined");
            }

            // 4. If mapfn is undefined, then let mapping be false.
            var mapFn = arguments.length > 1 ? arguments[1] : void undefined;
            var T;
            if (typeof mapFn !== 'undefined') {
              // 5. else
              // 5. a If IsCallable(mapfn) is false, throw a TypeError exception.
              if (!isCallable(mapFn)) {
                throw new TypeError('Array.from: when provided, the second argument must be a function');
              }

              // 5. b. If thisArg was supplied, let T be thisArg; else let T be undefined.
              if (arguments.length > 2) {
                T = arguments[2];
              }
            }

            // 10. Let lenValue be Get(items, "length").
            // 11. Let len be ToLength(lenValue).
            var len = toLength(items.length);

            // 13. If IsConstructor(C) is true, then
            // 13. a. Let A be the result of calling the [[Construct]] internal method of C with an argument list containing the single item len.
            // 14. a. Else, Let A be ArrayCreate(len).
            var A = isCallable(C) ? Object(new C(len)) : new Array(len);

            // 16. Let k be 0.
            var k = 0;
            // 17. Repeat, while k < len… (also steps a - h)
            var kValue;
            while (k < len) {
              kValue = items[k];
              if (mapFn) {
                A[k] = typeof T === 'undefined' ? mapFn(kValue, k) : mapFn.call(T, kValue, k);
              } else {
                A[k] = kValue;
              }
              k += 1;
            }
            // 18. Let putStatus be Put(A, "length", len, true).
            A.length = len;
            // 20. Return A.
            return A;
          };
        }());
      }

    var Wpcf7cfForm = function($form) {

        var options_element = $form.find('input[name="_wpcf7cf_options"]').eq(0);
        if (!options_element.length || !options_element.val()) {
            // doesn't look like a CF7 form created with conditional fields plugin enabled.
            return false;
        }

        var form = this;

        var form_options = JSON.parse(options_element.val());

        form.$form = $form;
        form.$input_hidden_group_fields = $form.find('[name="_wpcf7cf_hidden_group_fields"]');
        form.$input_hidden_groups = $form.find('[name="_wpcf7cf_hidden_groups"]');
        form.$input_visible_groups = $form.find('[name="_wpcf7cf_visible_groups"]');
        form.$input_repeaters = $form.find('[name="_wpcf7cf_repeaters"]');
        form.$input_steps = $form.find('[name="_wpcf7cf_steps"]');

        form.unit_tag = $form.closest('.wpcf7').attr('id');
        form.conditions = form_options['conditions'];

        // Wrapper around jQuery(selector, form.$form)
        form.get = function (selector) {
            // TODO: implement some caching here.
            return jQuery(selector, form.$form);
        }

        // compatibility with conditional forms created with older versions of the plugin ( < 1.4 )
        for (var i=0; i < form.conditions.length; i++) {
            var condition = form.conditions[i];
            if (!('and_rules' in condition)) {
                condition.and_rules = [{'if_field':condition.if_field,'if_value':condition.if_value,'operator':condition.operator}];
            }
        }

        form.initial_conditions = form.conditions;
        form.settings = form_options['settings'];

        form.$groups = jQuery(); // empty jQuery set
        form.repeaters = [];
        form.multistep = null;
        form.fields = [];

        form.settings.animation_intime = parseInt(form.settings.animation_intime);
        form.settings.animation_outtime = parseInt(form.settings.animation_outtime);

        if (form.settings.animation === 'no') {
            form.settings.animation_intime = 0;
            form.settings.animation_outtime = 0;
        }

        form.updateGroups();
        form.updateEventListeners();
        form.displayFields();

        // bring form in initial state if the reset event is fired on it.
        form.$form.on('reset.wpcf7cf', form, function(e) {
            var form = e.data;
            setTimeout(function(){
                form.displayFields();
                form.resetRepeaters();
                if (form.multistep != null) {
                    form.multistep.moveToStep(1);
                }
            },200);
        });

        // PRO ONLY

        form.get('.wpcf7cf_repeater:not(.wpcf7cf_repeater .wpcf7cf_repeater)').each(function(){
            form.repeaters.push(new Wpcf7cfRepeater(jQuery(this),form));
        });

        form.$input_repeaters.val(JSON.stringify(form.repeaters.map((item)=>item.params.$repeater.id)));

        var $multistep = form.get('.wpcf7cf_multistep');

        if ($multistep.length) {
            form.multistep = new Wpcf7cfMultistep($multistep, form);
            // window.wpcf7cf.updateMultistepState(form.multistep);
        }

        // END PRO ONLY

    }

    /**
     * reset initial number of subs for each repeater.
     * (does not clear values)
     */
    Wpcf7cfForm.prototype.resetRepeaters = function() {
        var form = this;
        form.repeaters.forEach(repeater => {
            repeater.updateSubs( repeater.params.$repeater.initial_subs );
        });
    }

    Wpcf7cfForm.prototype.displayFields = function() {

        var form = this;

        var wpcf7cf_conditions = this.conditions;
        var wpcf7cf_settings = this.settings;

        //for compatibility with contact-form-7-signature-addon
        if (cf7signature_resized === 0 && typeof signatures !== 'undefined' && signatures.constructor === Array && signatures.length > 0 ) {
            for (var i = 0; i < signatures.length; i++) {
                if (signatures[i].canvas.width === 0) {

                    var $sig_canvas = jQuery(".wpcf7-form-control-signature-body>canvas");
                    var $sig_wrap = jQuery(".wpcf7-form-control-signature-wrap");
                    $sig_canvas.eq(i).attr('width',  $sig_wrap.width());
                    $sig_canvas.eq(i).attr('height', $sig_wrap.height());

                    cf7signature_resized = 1;
                }
            }
        }

        form.$groups.addClass('wpcf7cf-hidden');

        wpcf7cf_reload_dom(form.$form);

        for (var i=0; i < wpcf7cf_conditions.length; i++) {

            var condition = wpcf7cf_conditions[i];

            var show_group = window.wpcf7cf.should_group_be_shown(condition, form);

            if (show_group) {
                form.get('[data-id="'+condition.then_field+'"]').removeClass('wpcf7cf-hidden');
            }
        }

        var animation_intime = wpcf7cf_settings.animation_intime;
        var animation_outtime = wpcf7cf_settings.animation_outtime;

        form.$groups.each(function (index) {
            var $group = jQuery(this);
            if ($group.is(':animated')) $group.finish(); // stop any current animations on the group
            if ($group.css('display') === 'none' && !$group.hasClass('wpcf7cf-hidden')) {
                if ($group.prop('tagName') === 'SPAN' || $group.is(':hidden')) {
                    $group.show().trigger('wpcf7cf_show_group');
                } else {
                    $group.animate(wpcf7cf_show_animation, animation_intime).trigger('wpcf7cf_show_group'); // show
                }
            } else if ($group.css('display') !== 'none' && $group.hasClass('wpcf7cf-hidden')) {

                if ($group.attr('data-clear_on_hide') !== undefined) {
                    var $inputs = jQuery(':input', $group).not(':button, :submit, :reset, :hidden');

                    $inputs.each(function(){
                        var $this = jQuery(this);
                        $this.val(this.defaultValue);
                        $this.prop('checked', this.defaultChecked);
                    });

                    jQuery('option', $group).each(function() {
                        this.selected = this.defaultSelected;
                    });

                    jQuery('select', $group).each(function() {
                        const $select = jQuery(this);
                        if ($select.val() === null) {
                            $select.val(jQuery("option:first",$select).val());
                        }
                    });

                    $inputs.change();
                    //display_fields();
                }

                if ($group.prop('tagName') === 'SPAN') {
                    $group.hide().trigger('wpcf7cf_hide_group');
                } else {
                    $group.animate(wpcf7cf_hide_animation, animation_outtime).trigger('wpcf7cf_hide_group'); // hide
                }

            }
        });

        form.updateHiddenFields();
        form.updateSummaryFields();
    };

    Wpcf7cfForm.prototype.updateSummaryFields = function() {
        const form = this;
        var $summary = form.get('.wpcf7cf-summary');

        if ($summary.length == 0 || !$summary.is(':visible')) return;

        var fd = new FormData();

        var formdata = form.$form.serializeArray();
        jQuery.each(formdata,function(key, input){
            fd.append(input.name, input.value);
        });

        // Make sure to add file fields to FormData
        jQuery.each(form.$form.find('input[type="file"]'), function(index, el) {
            if (! el.files.length) return true; // continue
            const fieldName = el.name;
            fd.append(fieldName, new Blob() , Array.from(el.files).map(file => file.name).join(', '));
        });

        // add file fields to form-data

        jQuery.ajax({
            url: wpcf7cf_global_settings.ajaxurl + '?action=wpcf7cf_get_summary',
            type: 'POST',
            data: fd,
            processData: false,
            contentType: false,
            dataType: 'json',
            success: function(json) {
                $summary.html(json.summaryHtml);
            }
        });
    };

    Wpcf7cfForm.prototype.updateHiddenFields = function() {

        var form = this;

        var hidden_fields = [];
        var hidden_groups = [];
        var visible_groups = [];

        form.$groups.each(function () {
            var $this = jQuery(this);
            if ($this.hasClass('wpcf7cf-hidden')) {
                hidden_groups.push($this.attr('data-id'));
                $this.find('input,select,textarea').each(function () {
                    hidden_fields.push(jQuery(this).attr('name'));
                });
            } else {
                visible_groups.push($this.attr('data-id'));
            }
        });

        form.hidden_fields = hidden_fields;
        form.hidden_groups = hidden_groups;
        form.visible_groups = visible_groups;

        form.$input_hidden_group_fields.val(JSON.stringify(hidden_fields));
        form.$input_hidden_groups.val(JSON.stringify(hidden_groups));
        form.$input_visible_groups.val(JSON.stringify(visible_groups));

        return true;
    };
    Wpcf7cfForm.prototype.updateGroups = function() {
        var form = this;
        form.$groups = form.$form.find('[data-class="wpcf7cf_group"]');

        form.conditions = window.wpcf7cf.get_nested_conditions(form.initial_conditions, form.$form);

    };
    Wpcf7cfForm.prototype.updateEventListeners = function() {

        var form = this;

        // monitor input changes, and call displayFields() if something has changed
        form.get('input, select, textarea, button').not('.wpcf7cf_add, .wpcf7cf_remove').off(wpcf7cf_change_events).on(wpcf7cf_change_events,form, function(e) {
            var form = e.data;
            clearTimeout(wpcf7cf_timeout);
            wpcf7cf_timeout = setTimeout(function() {
                form.displayFields();
            }, wpcf7cf_change_time_ms);
        });

        // PRO ONLY
        form.get('.wpcf7cf-togglebutton').off('click.toggle_wpcf7cf').on('click.toggle_wpcf7cf',function() {
            var $this = jQuery(this);
            if ($this.text() === $this.attr('data-val-1')) {
                $this.text($this.attr('data-val-2'));
                $this.val($this.attr('data-val-2'));
            } else {
                $this.text($this.attr('data-val-1'));
                $this.val($this.attr('data-val-1'));
            }
        });
        // END PRO ONLY
    };

    // PRO ONLY
    function Wpcf7cfRepeater($repeater, form) {
        var $ = jQuery;

        var repeater = this;

        var wpcf7cf_settings = form.settings;

        repeater.form = form;

        $repeater.parentRepeaters = Array.from($repeater.parents('.wpcf7cf_repeater').map(function() {
            return this.getAttribute('data-id');
        } )).reverse();

        $repeater.num_subs = 0;
        $repeater.id = $repeater.attr('data-id');
        $repeater.orig_id = $repeater.attr('data-orig_data_id');
        $repeater.min = typeof( $repeater.attr('data-min')) !== 'undefined' ? parseInt($repeater.attr('data-min')) : 1;
        $repeater.max = typeof( $repeater.attr('data-max')) !== 'undefined' ? parseInt($repeater.attr('data-max')) : 200;
        $repeater.initial_subs = typeof( $repeater.attr('data-initial')) !== 'undefined' ? parseInt($repeater.attr('data-initial')) : $repeater.min;
        if ($repeater.initial_subs > $repeater.max) $repeater.initial_subs = $repeater.max;
        var $repeater_sub = $repeater.children('.wpcf7cf_repeater_sub').eq(0);
        var $repeater_controls = $repeater.children('.wpcf7cf_repeater_controls').eq(0);

        var $repeater_sub_clone = $repeater_sub.clone();

        $repeater_sub_clone.find('.wpcf7cf_repeater_sub').addBack('.wpcf7cf_repeater_sub').each(function() {
            var $this = jQuery(this);
            var prev_suffix = $this.attr('data-repeater_sub_suffix');
            var new_suffix = prev_suffix+'__{{repeater_sub_suffix}}';
            $this.attr('data-repeater_sub_suffix', new_suffix);
        });

        $repeater_sub_clone.find('[name]').each(function() {
            var $this = jQuery(this);
            var prev_name = $this.attr('name');
            var new_name = repeater.getNewName(prev_name);

            var orig_name = $this.attr('data-orig_name') != null ? $this.attr('data-orig_name') : prev_name;

            $this.attr('name', new_name);
            $this.attr('data-orig_name', orig_name);
            $this.closest('.wpcf7-form-control-wrap').addClass(new_name.replace('[]',''));
        });

        $repeater_sub_clone.find('.wpcf7cf_repeater,[data-class="wpcf7cf_group"]').each(function() {
            var $this = jQuery(this);
            var prev_data_id = $this.attr('data-id');
            var orig_data_id = $this.attr('data-orig_data_id') != null ? $this.attr('data-orig_data_id') : prev_data_id;
            var new_data_id = repeater.getNewName(prev_data_id);

            if(prev_data_id.endsWith('_count')) {
                new_data_id = prev_data_id.replace('_count','__{{repeater_sub_suffix}}_count');
            }

            $this.attr('data-id', new_data_id);
            $this.attr('data-orig_data_id', orig_data_id);
        });

        $repeater_sub_clone.find('[id]').each(function() {
            var $this = jQuery(this);
            var prev_id = $this.attr('id');
            var orig_id =  $this.attr('data-orig_id') != null ? $this.attr('data-orig_id') : prev_id;
            var new_id = repeater.getNewName(prev_id);

            $this.attr('id', new_id);
            $this.attr('data-orig_id', orig_id);
        });

        $repeater_sub_clone.find('[for]').each(function() {
            var $this = jQuery(this);
            var prev_for = $this.attr('for');
            var orig_for =  $this.attr('data-orig_for') != null ? $this.attr('data-orig_for') : prev_for;
            var new_for = repeater.getNewName(prev_for);

            $this.attr('for', new_for);
            $this.attr('data-orig_for', orig_for);
        });

        var repeater_sub_html = $repeater_sub_clone[0].outerHTML;

        var $repeater_count_field = $repeater.find('[name='+$repeater.id+'_count]').eq(0);
        var $button_add = $repeater_controls.find('.wpcf7cf_add').eq(0);
        var $button_remove = $repeater_controls.find('.wpcf7cf_remove').eq(0);

        var params = {
            $repeater:             $repeater,
            $repeater_count_field: $repeater_count_field,
            repeater_sub_html:     repeater_sub_html,
            $repeater_controls:    $repeater_controls,
            $button_add:           $button_add,
            $button_remove:        $button_remove,
            wpcf7cf_settings:      wpcf7cf_settings
        };

        this.params = params;

        $button_add.on('click', null, repeater, function(e) {
            var repeater = e.data;
            repeater.updateSubs(params.$repeater.num_subs+1);
        });

        $button_remove.on('click', null, repeater,function(e) {
            var repeater = e.data;
            repeater.updateSubs(params.$repeater.num_subs-1);
        });

        jQuery('> .wpcf7cf_repeater_sub',params.$repeater).eq(0).remove(); // remove the first sub, it's just a template.

        repeater.updateSubs($repeater.initial_subs);
        repeater.updateButtons();

    }

    Wpcf7cfRepeater.prototype.getNewName = function(previousName) {
        var prev_parts = previousName.split('[');
        previousName = prev_parts[0];
        var prev_suff = prev_parts.length > 1 ? '['+prev_parts.splice(1).join('[') : '';
        var newName = previousName+'__{{repeater_sub_suffix}}'+prev_suff;

        if(previousName.endsWith('_count')) {
            newName = previousName.replace('_count','__{{repeater_sub_suffix}}_count');
        }

        return newName;
    }

    Wpcf7cfRepeater.prototype.updateButtons = function() {
        const repeater = this;
        const params = repeater.params;
        const num_subs = params.$repeater.num_subs;

        var showButtonRemove = false;
        var showButtonAdd = false;

        if (params.$repeater.num_subs < params.$repeater.max) {
            showButtonAdd = true;
        }
        if (params.$repeater.num_subs > params.$repeater.min) {
            showButtonRemove = true;
        }

        if (showButtonAdd) {
            params.$button_add.show();
        } else {
            params.$button_add.hide();

        }

        if (showButtonRemove) {
            params.$button_remove.show();
        } else {
            params.$button_remove.hide();
        }

        params.$repeater_count_field.val(num_subs);
    }

    Wpcf7cfRepeater.prototype.updateSubs = function(subs_to_show) {
        var repeater = this;
        var params = repeater.params;

        // make sure subs_to_show is a valid number
        subs_to_show = subs_to_show < params.$repeater.min ? params.$repeater.min : subs_to_show
        subs_to_show = subs_to_show > params.$repeater.max ? params.$repeater.max : subs_to_show

        var subs_to_add = subs_to_show - params.$repeater.num_subs;

        if (subs_to_add < 0) {
            repeater.removeSubs(-subs_to_add);
        } else if (subs_to_add > 0) {
            repeater.addSubs(subs_to_add);
        }
    };
    /**
     * add Subs to repeater
     * @param {Number} subs_to_add
     * @param {Number} index - zero-based. leave blank (or null) to append at the end
     */
    Wpcf7cfRepeater.prototype.addSubs = function(subs_to_add, index=null) {

        var $ = jQuery;
        var params = this.params;
        var repeater = this;
        var form = repeater.form;

        var $repeater = params.$repeater;
        var $repeater_controls = params.$repeater_controls;

        if (subs_to_add + $repeater.num_subs > $repeater.max) {
            subs_to_add = $repeater.max - $repeater.num_subs;
        }

        var html_str = '';

        for(var i=1; i<=subs_to_add; i++) {
            var sub_suffix = $repeater.num_subs+i;
            html_str += params.repeater_sub_html.replace(/\{\{repeater_sub_suffix\}\}/g,sub_suffix)
            .replace(new RegExp('\{\{'+$repeater.orig_id+'_index\}\}','g'),'<span class="wpcf7cf-index wpcf7cf__'+$repeater.orig_id+'">'+sub_suffix+'</span>');
        }

        var $html = jQuery(html_str);

        jQuery('> .wpcf7cf_repeater_sub',$repeater).finish(); // finish any currently running animations immediately.

        // Add the newly created fields to the form
        if (index === null) {
            $html.hide().insertBefore($repeater_controls).animate(wpcf7cf_show_animation, params.wpcf7cf_settings.animation_intime).trigger('wpcf7cf_repeater_added');
        } else {
            $html.hide().insertBefore(jQuery('> .wpcf7cf_repeater_sub', $repeater).eq(index)).animate(wpcf7cf_show_animation, params.wpcf7cf_settings.animation_intime).trigger('wpcf7cf_repeater_added');
        }

        jQuery('.wpcf7cf_repeater', $html).each(function(){
            form.repeaters.push(new Wpcf7cfRepeater(jQuery(this),form));
        });

        form.$input_repeaters.val(JSON.stringify(form.repeaters.map((item)=>item.params.$repeater.id)));

        $repeater.num_subs+= subs_to_add;

        if (index !== null) {
            repeater.updateSuffixes();
        }

        window.wpcf7cf.updateMultistepState(form.multistep);
        form.updateGroups();
        form.updateEventListeners();
        form.displayFields();

        repeater.updateButtons();

        // Exclusive Checkbox
        $html.on( 'click', '.wpcf7-exclusive-checkbox input:checkbox', function() {
            var name = $( this ).attr( 'name' );
            $html.find( 'input:checkbox[name="' + name + '"]' ).not( this ).prop( 'checked', false );
        } );

        //basic compatibility with material-design-for-contact-form-7
        if (typeof window.cf7mdInit === "function") {
            window.cf7mdInit();
        }

        return false;
    };

    /** TODO: implement this */
    Wpcf7cfRepeater.prototype.updateSuffixes = function() {

        // Loop trough all subs
        //  -- 1. update all fields, groups and repeaters names, id's, for's, ...
        //  -- 2. loop trough all repeaters
        //        -- update sub_html template for nested repeater
        //        -- call updateSuffixes() for nested repeater

        var $repeater = this.params.$repeater;
        var num_subs = this.params.$repeater.num_subs;
        var form = this.form;
        const orig_id = $repeater.attr('data-orig_data_id');
        const repeater_id = $repeater.attr('data-id');
        const repeater_suffix = repeater_id.replace(orig_id,'');

        let simplifiedDomArray = Object.values(wpcf7cf.get_simplified_dom_model(form.$form[0]));

        for (let i = 0; i < num_subs; i++) {

            const $sub = jQuery('> .wpcf7cf_repeater_sub', $repeater).eq(i);

            const newIndex = i+1;
            const currentSuffix = $sub.attr('data-repeater_sub_suffix');
            const newSuffix = repeater_suffix+'__'+newIndex;

            $sub.attr('data-repeater_sub_suffix', newSuffix); // update sub attr
            $sub.find('.wpcf7cf__'+orig_id).html(newIndex); // update {{r_index}} parts

            simplifiedDomArray.forEach(function(el) {

                if (el.suffix !== currentSuffix) return;

                // TODO: may need an extra check to verify that the element is inside the current repeater
                // (orig_id) . Otherwise problems may occur if there are repeaters on the same level.

                const newName = el.name.replace(currentSuffix, newSuffix);

                const pureElName = el.name.replace('[]','');
                const pureNewName = newName.replace('[]','');

                jQuery('[name="'+el.name+'"]', $sub).attr('name', newName);
                jQuery('[id="'+el.name+'"]', $sub).attr('id', newName);
                jQuery('label[for="'+el.name+'"]', $sub).attr('for', newName);
                const $nested_repeater = jQuery('[data-id="'+el.name+'"]', $sub);
                $nested_repeater.attr('data-id', newName);
                jQuery('.wpcf7-form-control-wrap.'+pureElName,$sub).removeClass(pureElName).addClass(pureNewName);

                if (el.type === 'repeater') {
                    const nested_repeater = form.repeaters.find( function(repeater) {
                        return repeater.params.$repeater.get(0) === $nested_repeater.get(0);
                    });

                    if (!nested_repeater) return;

                    nested_repeater.params.repeater_sub_html = wpcf7cf.updateRepeaterSubHTML(
                        nested_repeater.params.repeater_sub_html,
                        currentSuffix,
                        newSuffix,
                        nested_repeater.params.$repeater.parentRepeaters
                    );

                    nested_repeater.updateSuffixes();

                }

            });
        }

    };

    /**
     * Return the parent repeaters, order is not guaranteed.
     */
    Wpcf7cfRepeater.prototype.getParentRepeaters = function() {
        const simplifiedDomArray = Object.values(wpcf7cf.get_simplified_dom_model(form.$form[0]));
        form.repeaters.map(repeater => {

        });
    };

    Wpcf7cfRepeater.prototype.removeSubs = function(subs_to_remove, index=null) {
        var $ = jQuery;
        var repeater = this;
        var params = repeater.params;
        var form = repeater.form;
        var $repeater = params.$repeater;

        if ($repeater.num_subs - subs_to_remove < $repeater.min) {
            subs_to_remove = $repeater.num_subs - $repeater.min;
        }

        if (index===null) {
            index = $repeater.num_subs-subs_to_remove;
        }
        $repeater.num_subs-= subs_to_remove;

        jQuery('> .wpcf7cf_repeater_sub',$repeater).finish(); // finish any currently running animations immediately.

        jQuery('> .wpcf7cf_repeater_sub',$repeater).slice(index,index+subs_to_remove).animate(wpcf7cf_hide_animation, {duration:params.wpcf7cf_settings.animation_intime, done:function() {
            var $this = jQuery(this);
            //remove the actual fields from the form
            $this.remove();
            params.$repeater.trigger('wpcf7cf_repeater_removed');
            window.wpcf7cf.updateMultistepState(form.multistep);
            form.updateGroups();
            form.updateEventListeners();
            form.displayFields();

            repeater.updateButtons();

            if (index !== null) {
                repeater.updateSuffixes();
            }
        }});

        return false;
    };

    function Wpcf7cfMultistep($multistep, form) {
        var multistep = this;
        multistep.$multistep = $multistep;
        multistep.form = form;
        multistep.$steps = $multistep.find('.wpcf7cf_step');
        multistep.$btn_next = $multistep.find('.wpcf7cf_next');
        multistep.$btn_prev = $multistep.find('.wpcf7cf_prev');
        multistep.$dots = $multistep.find('.wpcf7cf_steps-dots');
        multistep.currentStep = 0;
        multistep.numSteps = multistep.$steps.length;

        multistep.$dots.html('');
        for (var i = 1; i <= multistep.numSteps; i++) {
            multistep.$dots.append(`
                <div class="dot" data-step="${i}">
                    <div class="step-index">${i}</div>
                    <div class="step-title">${multistep.$steps.eq(i-1).attr('data-title')}</div>
                </div>
            `);
        }

        multistep.$btn_next.on('click.wpcf7cf_step', async function() {

            multistep.$btn_next.addClass('disabled').attr('disabled', true);

            var result = await multistep.validateStep(multistep.currentStep);
            if (result === 'success') {
                multistep.moveToStep(multistep.currentStep+1);
            }

        });

        // If form is submitted (by pressing Enter for example), and if we are not on the last step,
        // then trigger click event on the $btn_next button instead.
        multistep.form.$form.on('submit.wpcf7cf_step', function(e) {

            if (multistep.currentStep !== multistep.numSteps) {
                multistep.$btn_next.trigger('click.wpcf7cf_step');

                e.stopImmediatePropagation();
                return false;
            }
        });

        multistep.$btn_prev.on( 'click', function() {
            multistep.moveToStep(multistep.currentStep-1);
        });

        multistep.moveToStep(1);
    }

    jQuery(document).ajaxComplete(function(e, xhr, settings){
        if (
            xhr.hasOwnProperty('responseJSON')          &&
            xhr.responseJSON != null                    &&
            xhr.responseJSON.hasOwnProperty('status')   &&
            xhr.responseJSON.hasOwnProperty('into')     &&
            xhr.responseJSON.status === "mail_success"
        ) {
            jQuery( xhr.responseJSON.into ).trigger('reset.wpcf7cf');
        }
    });

    Wpcf7cfMultistep.prototype.validateStep = function(step_index) {

        var multistep = this;
        var $multistep = multistep.$multistep;
        var $form = multistep.form.$form;
        var form  = multistep.form;

        $form.find('.wpcf7-response-output').addClass('wpcf7-display-none');

        return new Promise(resolve => {

            var fd = new FormData();

            // Make sure to add file fields to FormData
            jQuery.each($form.find('[data-id="step-'+step_index+'"] input[type="file"]'), function(index, el) {
                if (! el.files.length) return true; // = continue
                const file = el.files[0];
                const fieldName = el.name;
                fd.append(fieldName, file);
            });

            var formdata = $form.serializeArray();
            jQuery.each(formdata,function(key, input){
                fd.append(input.name, input.value);
            });

            jQuery.ajax({
                url: wpcf7cf_global_settings.ajaxurl + '?action=wpcf7cf_validate_step',
                type: 'POST',
                data: fd,
                processData: false,
                contentType: false,
                dataType: 'json',
            }).done(function(json) {

                $multistep.find('.wpcf7-form-control-wrap .wpcf7-not-valid-tip').remove();
                $multistep.find('.wpcf7-not-valid').removeClass('wpcf7-not-valid');
                $multistep.find('.wpcf7-response-output').remove();
                $multistep.find('.wpcf7-response-output.wpcf7-validation-errors').removeClass('wpcf7-validation-errors');

                multistep.$btn_next.removeClass('disabled').attr('disabled', false);

                if (!json.success) {
                    var checkError = 0;

                    jQuery.each(json.invalid_fields, function(index, el) {
                        if ($multistep.find('input[name="'+index+'"]').length ||
                            $multistep.find('input[name="'+index+'[]"]').length ||
                            $multistep.find('select[name="'+index+'"]').length ||
                            $multistep.find('select[name="'+index+'[]"]').length ||
                            $multistep.find('textarea[name="'+index+'"]').length ||
                            $multistep.find('textarea[name="'+index+'[]"]').length
                        ) {
                            checkError = checkError + 1;

                            var controlWrap = form.get('.wpcf7-form-control-wrap.' + index);
                            controlWrap.find('.wpcf7-form-control').addClass('wpcf7-not-valid');
                            controlWrap.find('span.wpcf7-not-valid-tip').remove();
                            controlWrap.append('<span role="alert" class="wpcf7-not-valid-tip">' + el.reason + '</span>');

                        }
                    });

                    resolve('failed');

                    $multistep.parent().find('.wpcf7-response-output').removeClass('wpcf7-display-none').html(json.message);

                    wpcf7.setStatus( $form, 'invalid' );
                    multistep.$steps.trigger('wpcf7cf_step_invalid');

                    // wpcf7.triggerEvent( data.into, 'invalid', detail );

                } else if (json.success) {

                    wpcf7.setStatus( $form, 'init' );

                    resolve('success');
                    return false;
                }

            }).fail(function() {
                resolve('error');
            }).always(function() {
                // do nothing
            });
        });

    };
    Wpcf7cfMultistep.prototype.moveToStep = function(step_index) {
        var multistep = this;
        var previousStep = multistep.currentStep;

        multistep.currentStep = step_index > multistep.numSteps ? multistep.numSteps
                                    : step_index < 1 ? 1
                                        : step_index;

        // ANIMATION DISABLED FOR NOW cause it's ugly
        // multistep.$steps.animate(wpcf7cf_hide_step_animation, multistep.form.settings.animation_outtime);
        // multistep.$steps.eq(multistep.currentStep-1).animate(wpcf7cf_show_step_animation, multistep.form.settings.animation_intime);

        multistep.$multistep.attr('data-current_step', multistep.currentStep);
        multistep.$steps.hide();
        multistep.$steps
            .eq(multistep.currentStep-1)
            .show()
            .trigger('wpcf7cf_change_step', [previousStep, multistep.currentStep]);

        const formEl = multistep.form.$form[0];
        const topOffset = formEl.getBoundingClientRect().top;
        if (topOffset < 0 && previousStep > 0) {
            formEl.scrollIntoView({behavior: "smooth"});
        }

        multistep.form.updateSummaryFields();

        window.wpcf7cf.updateMultistepState(multistep);
    };

    Wpcf7cfMultistep.prototype.getFieldsInStep = function(step_index) {
        wpcf7cf_reload_dom(this.form.$form);
        var inStep = false;
        return Object.values(wpcf7cf_dom).filter(function(item, i) {
            if(item.type == 'step') {
                inStep = item.val == step_index+'';
            }
            return inStep && item.type == 'input';
        }).map(function(item) {
            return item.name;
        });
    };

    // END PRO ONLY

    /**
     * @global
     * @namespace wpcf7cf
     */
    window.wpcf7cf = {

        updateRepeaterSubHTML : function(html, oldSuffix, newSuffix, parentRepeaters) {
            const oldIndexes = oldSuffix.split('__');
            oldIndexes.shift(); // remove first empty element
            const newIndexes = newSuffix.split('__');
            newIndexes.shift(); // remove first empty element

            let returnHtml = html;

            if (
                oldIndexes && newIndexes &&
                oldIndexes.length === parentRepeaters.length &&
                newIndexes.length === parentRepeaters.length
            ) {

                const parentRepeatersInfo = parentRepeaters.map((repeaterId, i) => {
                    return {[repeaterId.split('__')[0]]: [oldIndexes[i], newIndexes[i]]};
                });

                const length = parentRepeatersInfo.length;

                let replacements = oldIndexes.map( (oldIndex, i) => {
                    return [
                        '__'+oldIndexes.slice(0,length-i).join('__'),
                        '__'+newIndexes.slice(0,length-i).join('__'),
                    ];
                });

                for (let i=0; i<length ; i++) {
                    const id = Object.keys(parentRepeatersInfo[i])[0];
                    const find = parentRepeatersInfo[i][id][0];
                    const repl = parentRepeatersInfo[i][id][1];
                    replacements.push([
                        `<span class="wpcf7cf-index wpcf7cf__${id}">${find}<\\/span>`,
                        `<span class="wpcf7cf-index wpcf7cf__${id}">${repl}</span>`
                    ]);
                }

                replacements.forEach( ([oldSuffix, newSuffix]) => {
                    returnHtml = returnHtml.replace(new RegExp(oldSuffix,'g'), newSuffix);
                });

            }

            return returnHtml ;
        },

        // keep this for backwards compatibility
        initForm : function($forms) {
            $forms.each(function(){
                const $form = jQuery(this);
                // only add form is its class is "wpcf7-form" and if the form was not previously added
                if (
                    $form.hasClass('wpcf7-form') &&
                    !wpcf7cf_forms.some((form)=>{ return form.$form.get(0) === $form.get(0); })
                ) {
                    wpcf7cf_forms.push(new Wpcf7cfForm($form));
                }
            });
        },

        getWpcf7cfForm : function ($form) {
            const matched_forms = wpcf7cf_forms.filter((form)=>{
                const f1 =  form.$form.get(0);
                const f2 =  $form.get(0);
                return form.$form.get(0) === $form.get(0);
            });
            if (matched_forms.length) {
                return matched_forms[0];
            }
            return false;
        },

        get_nested_conditions : function(conditions, $current_form) {
            //loop trough conditions. Then loop trough the dom, and each repeater we pass we should update all sub_values we encounter with __index
            wpcf7cf_reload_dom($current_form);
            var groups = Object.values(wpcf7cf_dom).filter(function(item, i) {
                return item.type==='group';
            });

            var sub_conditions = [];

            for(var i = 0;  i < groups.length; i++) {
                var g = groups[i];
                var relevant_conditions = conditions.filter(function(condition, i) {
                    return condition.then_field === g.original_name;
                });

                var relevant_conditions = relevant_conditions.map(function(item,i) {
                    return {
                        then_field : g.name,
                        and_rules : item.and_rules.map(function(and_rule, i) {
                            return {
                                if_field : and_rule.if_field+g.suffix,
                                if_value : and_rule.if_value,
                                operator : and_rule.operator
                            };
                        })
                    }
                });

                sub_conditions = sub_conditions.concat(relevant_conditions);
            }
            return sub_conditions;
        },

        get_simplified_dom_model : function(currentNode, simplified_dom = {}, parentGroups = [], parentRepeaters = []) {

            const type = currentNode.classList && currentNode.classList.contains('wpcf7cf_repeater') ? 'repeater' :
                currentNode.dataset.class == 'wpcf7cf_group' ? 'group' :
                currentNode.className == 'wpcf7cf_step' ? 'step' :
                currentNode.hasAttribute('name') ? 'input' : false;

            let newParentRepeaters = [...parentRepeaters];
            let newParentGroups = [...parentGroups];

            if (type) {

                const name = type === 'input' ? currentNode.getAttribute('name') : currentNode.dataset.id;

                if (type === 'repeater') {
                    newParentRepeaters.push(name);
                }
                if (type === 'group') {
                    newParentGroups.push(name);
                }

                // skip _wpcf7 hidden fields
                if (name.substring(0,6) === '_wpcf7') return {};

                const original_name = type === 'repeater' || type === 'group' ? currentNode.dataset.orig_data_id
                                        : type === 'input' ? (currentNode.getAttribute('data-orig_name') || name)
                                        : name;

                const nameWithoutBrackets = name.replace('[]','');
                const originalNameWithoutBrackets = original_name.replace('[]','');

                const val = type === 'step' ? [currentNode.dataset.id.substring(5)] : [];

                const parentGroup = 'parent-group';

                const suffix = nameWithoutBrackets.replace(originalNameWithoutBrackets, '');

                if (!simplified_dom[name]) {
                    // init entry
                    simplified_dom[name] = {name, type, original_name, suffix, val, parentGroups, parentRepeaters}
                }

                if (type === 'input') {

                    // skip unchecked checkboxes and radiobuttons
                    if ( (currentNode.type === 'checkbox' || currentNode.type === 'radio') && !currentNode.checked ) return {};

                    // if multiselect, make sure to add all the values
                    if ( currentNode.multiple && currentNode.options ) {
                        simplified_dom[name].val = Object.values(currentNode.options).filter(o => o.selected).map(o => o.value)
                    } else {
                        simplified_dom[name].val.push(currentNode.value);
                    }
                }
            }

            Array.from(currentNode.children).forEach(childNode => {
                const dom = wpcf7cf.get_simplified_dom_model(childNode, simplified_dom, newParentGroups, newParentRepeaters);
                simplified_dom = {...dom, ...simplified_dom} ;
            });

            return simplified_dom;
        },

        updateMultistepState: function (multistep) {
            if (multistep == null) return;

            // update hidden input field

            var stepsData = {
                currentStep : multistep.currentStep,
                numSteps : multistep.numSteps,
                fieldsInCurrentStep : multistep.getFieldsInStep(multistep.currentStep)
            };
            multistep.form.$input_steps.val(JSON.stringify(stepsData));

            // update Buttons
            multistep.$btn_prev.removeClass('disabled').attr('disabled', false);
            multistep.$btn_next.removeClass('disabled').attr('disabled', false);
            if (multistep.currentStep == multistep.numSteps) {
                multistep.$btn_next.addClass('disabled').attr('disabled', true);
            }
            if (multistep.currentStep == 1) {
                multistep.$btn_prev.addClass('disabled').attr('disabled', true);
            }

            // replace next button with submit button on last step.
            // TODO: make this depend on a setting
            var $submit_button = multistep.form.$form.find('input[type="submit"]').eq(0);
            var $ajax_loader = multistep.form.$form.find('.ajax-loader').eq(0);
            if (multistep.currentStep == multistep.numSteps) {
                multistep.$btn_next.hide();
                $ajax_loader.detach().appendTo(multistep.$btn_next.parent());
                $submit_button.detach().appendTo(multistep.$btn_next.parent());
                $submit_button.show();
            } else {
                $submit_button.hide();
                multistep.$btn_next.show();
            }

            // update dots
            var $dots = multistep.$dots.find('.dot');
            $dots.removeClass('active').removeClass('completed');
            for(var step = 1; step <= multistep.numSteps; step++) {
                if (step < multistep.currentStep) {
                    $dots.eq(step-1).addClass('completed');
                } else if (step == multistep.currentStep) {
                    $dots.eq(step-1).addClass('active');
                }
            }

        },

        should_group_be_shown : function(condition) {

            var show_group = true;

            for (var and_rule_i = 0; and_rule_i < condition.and_rules.length; and_rule_i++) {

                var condition_ok = false;

                var condition_and_rule = condition.and_rules[and_rule_i];

                var inputField = wpcf7cf_getFieldByName(condition_and_rule.if_field);

                if (!inputField) continue; // field not found

                var if_val = condition_and_rule.if_value;
                var operator = condition_and_rule.operator;

                //backwards compat
                operator = operator === '≤' ? 'less than or equals' : operator;
                operator = operator === '≥' ? 'greater than or equals' : operator;
                operator = operator === '>' ? 'greater than' : operator;
                operator = operator === '<' ? 'less than' : operator;

                const $field = operator === 'function' && jQuery(`[name="${inputField.name}"]`).eq(0);

                condition_ok = this.isConditionTrue(inputField.val,operator,if_val, $field);

                show_group = show_group && condition_ok;
            }

            return show_group;

        },

        isConditionTrue(values, operator, testValue='', $field=jQuery()) {

            if (!Array.isArray(values)) {
                values = [values];
            }

            let condition_ok = false; // start by assuming that the condition is not met

            // Considered EMPTY:       []     ['']          [null]        ['',null]    [,,'']
            // Considered NOT EMPTY:   [0]    ['ab','c']    ['',0,null]
            const valuesAreEmpty = values.length === 0 || values.every((v) => !v&&v!==0); // 0 is not considered empty

            // special cases: [] equals '' => TRUE; [] not equals '' => FALSE
            if (operator === 'equals' && testValue === '' && valuesAreEmpty)  {
                return true;
            }
            if (operator === 'not equals' && testValue === '' && valuesAreEmpty) {
                return false;
            }

            if (valuesAreEmpty) {
                if (operator === 'is empty') {
                    condition_ok = true;
                }
            } else {
                if (operator === 'not empty') {
                    condition_ok = true;
                }
            }

            const testValueNumber = isFinite(parseFloat(testValue)) ? parseFloat(testValue) : NaN;

            if (operator === 'not equals' || operator === 'not equals (regex)') {
                // start by assuming that the condition is met
                condition_ok = true;
            }

            if (
                operator === 'function'
                && typeof window[testValue] == 'function'
                && window[testValue]($field) // here we call the actual user defined function
            ) {
                condition_ok = true;
            }

            let regex_patt = /.*/i; // fallback regex pattern
            let isValidRegex = true;
            if (operator === 'equals (regex)' || operator === 'not equals (regex)') {
                try {
                    regex_patt = new RegExp(testValue, 'i');
                } catch(e) {
                    isValidRegex = false;
                }
            }

            for(let i = 0; i < values.length; i++) {

                const value = values[i];

                const valueNumber = isFinite(parseFloat(value)) ? parseFloat(value) : NaN;
                const valsAreNumbers = !isNaN(valueNumber) && !isNaN(testValueNumber);

                if (

                    operator === 'equals' && value === testValue ||
                    operator === 'equals (regex)' && regex_patt.test(value) ||
                    operator === 'greater than' && valsAreNumbers && valueNumber > testValueNumber ||
                    operator === 'less than' && valsAreNumbers && valueNumber < testValueNumber ||
                    operator === 'greater than or equals' && valsAreNumbers && valueNumber >= testValueNumber ||
                    operator === 'less than or equals' && valsAreNumbers && valueNumber <= testValueNumber

                ) {

                    condition_ok = true;
                    break;

                } else if (

                    operator === 'not equals' && value === testValue ||
                    operator === 'not equals (regex)' && regex_patt.test(value)

                ) {

                    condition_ok = false;
                    break;

                }
            }

            return condition_ok;

        },

        getFormObj($form) {
            if (typeof $form === 'string') {
                $form = jQuery($form).eq(0);
            }
            return wpcf7cf.getWpcf7cfForm($form);
        },

        getRepeaterObj($form, repeaterDataId) {
            const form = wpcf7cf.getFormObj($form);
            const repeater = form.repeaters.find( repeater => repeater.params.$repeater.attr('data-id') === repeaterDataId );

            return repeater;

        },

        getMultiStepObj($form){
            const form = wpcf7cf.getFormObj($form);
            return form.multistep;
        },

        /**
         * Append a new sub-entry to the repeater with the name `repeaterDataId` inside the form `$form`
         * @memberof wpcf7cf
         * @function wpcf7cf.repeaterAddSub
         * @link
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {String} repeaterDataId - *data-id* attribute of the repeater. Normally this is simply the name of the repeater. However, in case of a nested repeater you need to append the name with the correct suffix. For example `my-nested-repeater__1__3`. Hint (check the `data-id` attribute in the HTML code to find the correct suffix)
         */
        repeaterAddSub($form,repeaterDataId) {
            const repeater = wpcf7cf.getRepeaterObj($form, repeaterDataId);
            repeater.updateSubs(repeater.params.$repeater.num_subs+1);
        },

        /**
         * Insert a new sub-entry at the given `index` of the repeater with the name `repeaterDataId` inside the form `$form`
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {String} repeaterDataId - *data-id* attribute of the repeater.
         * @param {Number} index - position where to insert the new sub-entry within the repeater
         */
        repeaterAddSubAtIndex($form,repeaterDataId,index) {
            const repeater = wpcf7cf.getRepeaterObj($form, repeaterDataId);
            repeater.addSubs(1, index);
        },

        /**
         * Remove the sub-entry at the given `index` of the repeater with the *data-id* attribute of `repeaterDataId` inside the form `$form`
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {String} repeaterDataId - *data-id* attribute of the repeater.
         * @param {Number} index - position where to insert the new sub-entry within the repeater
         */
        repeaterRemoveSubAtIndex($form,repeaterDataId,index) {
            const repeater = wpcf7cf.getRepeaterObj($form, repeaterDataId);
            repeater.removeSubs(1, index);
        },

        /**
         * Remove the last sub-entry from the repeater with the *data-id* attribute of `repeaterDataId` inside the form `$form`
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {String} repeaterDataId - *data-id* attribute of the repeater.
         * @param {Number} index - position where to insert the new sub-entry within the repeater
         */
        repeaterRemoveSub($form,repeaterDataId) {
            const repeater = wpcf7cf.getRepeaterObj($form, repeaterDataId);
            repeater.updateSubs(repeater.params.$repeater.num_subs-1);
        },

        /**
         * Set the number of subs for the repeater with the *data-id* attribute of `repeaterDataId` inside the form `$form`.
         * Subs are either appended to or removed from the end of the repeater.
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {String} repeaterDataId - *data-id* attribute of the repeater.
         * @param {Number} numberOfSubs - position where to insert the new sub-entry within the repeater
         */
        repeaterSetNumberOfSubs($form, repeaterDataId, numberOfSubs) {
            const repeater = wpcf7cf.getRepeaterObj($form, repeaterDataId);
            repeater.updateSubs(numberOfSubs);
        },

        /**
         * Move to step number `step`, ignoring any validation.
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {*} step
         */
        multistepMoveToStep($form, step) {
            const multistep = wpcf7cf.getMultiStepObj($form);
            multistep.moveToStep(step);
        },

        /**
         * Validate the current step, and move to step number `step` if validation passes.
         * @memberof wpcf7cf
         * @param {String|JQuery} $form - JQuery object or css-selector representing the form
         * @param {Number} step
         */
        async multistepMoveToStepWithValidation($form, step) {
            const multistep = wpcf7cf.getMultiStepObj($form);

            var result = await multistep.validateStep(multistep.currentStep);
            if (result === 'success') {
                multistep.moveToStep(step);
            }
        },

    };

    jQuery('.wpcf7-form').each(function(){
        wpcf7cf_forms.push(new Wpcf7cfForm(jQuery(this)));
    });

    // Call displayFields again on all forms
    // Necessary in case some theme or plugin changed a form value by the time the entire page is fully loaded.
    jQuery('document').ready(function() {
        wpcf7cf_forms.forEach(function(f){
            f.displayFields();
        });
    });

    // fix for exclusive checkboxes in IE (this will call the change-event again after all other checkboxes are unchecked, triggering the display_fields() function)
    var old_wpcf7ExclusiveCheckbox = jQuery.fn.wpcf7ExclusiveCheckbox;
    jQuery.fn.wpcf7ExclusiveCheckbox = function() {
        return this.find('input:checkbox').on('click', function() {
            var name = jQuery(this).attr('name');
            jQuery(this).closest('form').find('input:checkbox[name="' + name + '"]').not(this).prop('checked', false).eq(0).change();
        });
    };