# Source: scripts.js

    "use strict";

    // disable client side validation introduced in CF7 5.6 for now
    if (typeof wpcf7 !== 'undefined') {
        wpcf7.validate = (a,b) => null;
    }

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

    let wpcf7cf_timeout;
    let wpcf7cf_change_time_ms = 100; // the timeout after a change in the form is detected

    if (window.wpcf7 && !wpcf7.setStatus) {
        wpcf7.setStatus = ( form, status ) => {
            form = form.length ? form[0] : form; // if form is a jQuery object, only grab te html-element
            const defaultStatuses = new Map( [
                // 0: Status in API response, 1: Status in HTML class
                [ 'init', 'init' ],
                [ 'validation_failed', 'invalid' ],
                [ 'acceptance_missing', 'unaccepted' ],
                [ 'spam', 'spam' ],
                [ 'aborted', 'aborted' ],
                [ 'mail_sent', 'sent' ],
                [ 'mail_failed', 'failed' ],
                [ 'submitting', 'submitting' ],
                [ 'resetting', 'resetting' ],
            ] );

            if ( defaultStatuses.has( status ) ) {
                status = defaultStatuses.get( status );
            }

            if ( ! Array.from( defaultStatuses.values() ).includes( status ) ) {
                status = status.replace( /[^0-9a-z]+/i, ' ' ).trim();
                status = status.replace( /\s+/, '-' );
                status = `custom-${ status }`;
            }

            const prevStatus = form.getAttribute( 'data-status' );

            form.wpcf7.status = status;
            form.setAttribute( 'data-status', status );
            form.classList.add( status );

            if ( prevStatus && prevStatus !== status ) {
                form.classList.remove( prevStatus );
            }

            return status;
        };
    }

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

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

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

    const wpcf7cf_change_events = 'input.wpcf7cf paste.wpcf7cf change.wpcf7cf click.wpcf7cf propertychange.wpcf7cf changedisabledprop.wpcf7cf';

    const wpcf7cf_forms = [];

    const Wpcf7cfForm = function($form) {

        const 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;
        }

        const form = this;

        const 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'];

        form.simpleDom = null;

        form.reloadSimpleDom = function() {
            form.simpleDom = wpcf7cf.get_simplified_dom_model(form.$form[0]);
        }

        // quicker than reloading the simpleDom completely with reloadSimpleDom
        form.updateSimpleDom = function() {
            if (!form.simpleDom) {
                form.reloadSimpleDom();
            }
            const inputs = Object.values(form.simpleDom).filter(item => item.type === 'input');
            const formdata = new FormData(form.$form[0]);

            let formdataEntries = [... formdata.entries()].map(entry => [ entry[0], entry[1].name ?? entry[1] ]);
            const buttonEntries = [ ... jQuery('button', form.$form) ].map(entry => [entry.name, entry.value]);
            formdataEntries = formdataEntries.concat(buttonEntries);

            inputs.forEach(simpleDomItem => {
                const newValue = form.getNewDomValueIfChanged(simpleDomItem, formdataEntries);
                if (newValue !== null) {
                    form.simpleDom[simpleDomItem.name].val = newValue;
                }
            });

        }

        form.isDomMatch = function(simpleDomItem, formDataEntries) {
            const simpleDomItemName = simpleDomItem.name;
            const simpleDomItemValues = simpleDomItem.val;
            const currentValues = formDataEntries.filter(entry => entry[0] === simpleDomItemName).map(entry => entry[1]);
            return currentValues.join('|') === simpleDomItemValues.join('|');
        }

        /**
         *
         * @param {*} simpleDomItem
         * @param {*} formDataEntries
         * @returns the new value, or NULL if no change
         */
        form.getNewDomValueIfChanged = function(simpleDomItem, formDataEntries) {
            const simpleDomItemName = simpleDomItem.name;
            const simpleDomItemValues = simpleDomItem.val;
            const currentValues = formDataEntries.filter(entry => entry[0] === simpleDomItemName).map(entry => entry[1]);
            return currentValues.join('|') === simpleDomItemValues.join('|') ? null : currentValues;
        }

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

        form.getFieldByName = function(name) {
            return form.simpleDom[name] || form.simpleDom[name+'[]'];
        }

        // compatibility with conditional forms created with older versions of the plugin ( < 1.4 )
        for (let i=0; i < form.conditions.length; i++) {
            const 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.
        // (CF7 triggers the 'reset' event by default on each successfully submitted form)
        form.$form.on('reset.wpcf7cf', form, function(e) {
            const form = e.data;
            setTimeout(function(){
                form.reloadSimpleDom();
                form.displayFields();
                form.resetRepeaters();
                if (form.multistep != null) {
                    form.multistep.moveToStep(1, false);
                }
                setTimeout(function(){
                    if (form.$form.hasClass('sent')) {
                        jQuery('.wpcf7-response-output', form.$form)[0].scrollIntoView({behavior: "smooth", block:"nearest", inline:"nearest"});
                    }
                }, 400);
            },200);
        });

    }

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

    Wpcf7cfForm.prototype.displayFields = function() {

        const form = this;

        const wpcf7cf_conditions = this.conditions;
        const 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 (let i = 0; i < signatures.length; i++) {
                if (signatures[i].canvas.width === 0) {

                    const $sig_canvas = jQuery(".wpcf7-form-control-signature-body>canvas");
                    const $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');

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

            const condition = wpcf7cf_conditions[i];

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

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

        const animation_intime = wpcf7cf_settings.animation_intime;
        const animation_outtime = wpcf7cf_settings.animation_outtime;

        form.$groups.each(function (index) {
            const $group = jQuery(this);
            if ($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.show().trigger('wpcf7cf_show_group'); // show instantly
                } else {
                    $group.animate(wpcf7cf_show_animation, animation_intime).trigger('wpcf7cf_show_group'); // show with animation
                }

                if($group.attr('data-disable_on_hide') !== undefined) {
                    $group.find(':input').prop('disabled', false).trigger('changedisabledprop.wpcf7cf');
                    $group.find('.wpcf7-form-control-wrap').removeClass('wpcf7cf-disabled');
                }

            } else if ($group.css('display') !== 'none' && $group.hasClass('wpcf7cf-hidden')) {

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

                    $inputs.each(function(){
                        const $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.each(function(){this.dispatchEvent(new Event("change",{"bubbles":true}))});
                }

                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;
        const $summary = form.get('.wpcf7cf-summary');

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

        const fd = new FormData();

        const 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() {

        const form = this;

        const hidden_fields = [];
        const hidden_groups = [];
        const visible_groups = [];

        form.$groups.each(function () {
            const $group = jQuery(this);
            if ($group.hasClass('wpcf7cf-hidden')) {
                hidden_groups.push($group.attr('data-id'));
                if($group.attr('data-disable_on_hide') !== undefined) {
                    // fields inside hidden disable_on_hide group
                    $group.find('input,select,textarea').each(function(){
                        const $this = jQuery(this);
                        if (!$this.prop('disabled')) {
                            $this.prop('disabled', true).trigger('changedisabledprop.wpcf7cf');
                        }

                        // if there's no other field with the same name visible in the form
                        // then push this field to hidden_fields
                        if (form.$form.find(`[data-class="wpcf7cf_group"]:not(.wpcf7cf-hidden) [name='${$this.attr('name')}']`).length === 0) {
                            hidden_fields.push($this.attr('name'));
                        }
                    })
                    $group.find('.wpcf7-form-control-wrap').addClass('wpcf7cf-disabled');
                } else {
                    // fields inside regular hidden group are all pushed to hidden_fields
                    $group.find('input,select,textarea').each(function () {
                        hidden_fields.push(jQuery(this).attr('name'));
                    });
                }
            } else {
                visible_groups.push($group.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() {
        const form = this;
        form.$groups = form.$form.find('[data-class="wpcf7cf_group"]');
        form.$groups.height('auto');
        form.conditions = window.wpcf7cf.get_nested_conditions(form);

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

        const 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) {
            const form = e.data;
            clearTimeout(wpcf7cf_timeout);
            wpcf7cf_timeout = setTimeout(function() {
                window.wpcf7cf.updateMultistepState(form.multistep);
                form.updateSimpleDom();
                form.displayFields();
            }, wpcf7cf_change_time_ms);
        });

    };

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

        hideGroup : function($group, animate) {

        },

        showGroup : function($group, animate) {

        },

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

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

            let sub_conditions = [];

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

                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 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);
                    }
                }
            }

            // can't use currentNode.children (because then field name cannot be "children")
            const getter = Object.getOwnPropertyDescriptor(Element.prototype, "children").get;
            const children = getter.call(currentNode);

            Array.from(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;
            if (multistep.form.$form.hasClass('submitting')) return;

            // update hidden input field

            const 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
            const $submit_button = multistep.form.$form.find('input[type="submit"]:last').eq(0);
            const $ajax_loader = multistep.form.$form.find('.wpcf7-spinner').eq(0);

            $submit_button.detach().prependTo(multistep.$btn_next.parent());
            $ajax_loader.detach().prependTo(multistep.$btn_next.parent());

            if (multistep.currentStep == multistep.numSteps) {
                multistep.$btn_next.hide();
                $submit_button.show();
            } else {
                $submit_button.hide();
                multistep.$btn_next.show();
            }

            // update dots
            const $dots = multistep.$dots.find('.dot');
            $dots.removeClass('active').removeClass('completed');
            for(let 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, form) {

            let show_group = true;
            let atLeastOneFieldFound = false;

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

                let condition_ok = false;

                const condition_and_rule = condition.and_rules[and_rule_i];

                const inputField = form.getFieldByName(condition_and_rule.if_field);

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

                atLeastOneFieldFound = true;

                const if_val = condition_and_rule.if_value;
                let 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 && atLeastOneFieldFound;

        },

        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);

            const 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)
    const old_wpcf7ExclusiveCheckbox = jQuery.fn.wpcf7ExclusiveCheckbox;
    jQuery.fn.wpcf7ExclusiveCheckbox = function() {
        return this.find('input:checkbox').on('click', function() {
            const name = jQuery(this).attr('name');
            jQuery(this).closest('form').find('input:checkbox[name="' + name + '"]').not(this).prop('checked', false).eq(0).change();
        });
    };