WPForms adding a custom validation rule

custom-validation.js

;(function($) {

	var JA_Custom_Validation = {

		/**
		 * Start the engine.
		 *
		 * @since 1.0.0
		 */
		init: function() {

			$(document).on('wpformsReady', JA_Custom_Validation.customRules);
		},

		/**
		 * Custom validation rules.
		 *
		 * @since 1.0.0
		 */
		customRules: function() {

			// Only load if jQuery validation library exists
			if (typeof $.fn.validate !== 'undefined') { 

				/**
				 * Documentation for addMethod is:
				 * https://jqueryvalidation.org/jQuery.validator.addMethod/
				 * 
				 * "foo" is the name of the rule, which requires the value
				 * to be "foobar"
				 *
				 * Validation can also be forced by using the wpforms_field_atts
				 * filter to add a 'rule-foo' data attribute that is set to true,
				 * eg data-rule-foo="true"
				 *
				 * https://jqueryvalidation.org/rules/
				 */ 

				// Register the validation rule
				$.validator.addMethod("foo", function(value, element, param) {
					
					// In case you need to reference the element with jQuery
					// Not actually used in this rule
					var $ele = $(element);

					return this.optional(element) || value === 'foobar';
				}, $.validator.format("Value is not foobar"));
			}

			// Apply the rule to the input
			if ( $('.some-custom-field-class input').length ) {
				$('.some-custom-field-class input').rules( 'add', {
					foo: true
				});				
			}
		},
	}

	JA_Custom_Validation.init();
})(jQuery);

functions.php

<?php
/**
 * Add PHP validation for custom rule
 *
 * @param int $field_id
 * @param array $field_submit
 * @param array $form_data
 * @since 1.0.0
 */
function ja_custom_text_validation( $field_id, $field_submit, $form_data ) {
	
	// You could target the field specifically with the field ID or you could
	// use the field ID to look up the field class stored inside $form_data which
	// is what we do below.

	$form_id = $form_data['id'];
	$fields  = $form_data['fields'];

	// Check if field has custom CSS class configured
	if ( !empty( $fields[$field_id]['css'] ) ) {

		// Since a field can have multiple classes we have to accomodate that
		$classes = explode( ' ', $fields[$field_id]['css'] );

		if ( in_array( 'some-custom-field-class', $classes ) ) {

			// Class matches so now we validate
			if ( 'foobar' !== $field_submit ) {

				// Throw error!
				wpforms()->process->errors[$form_id][$field_id] = 'Value must be foobar';
				return;
			}
		}
	}
}
add_action( 'wpforms_process_validate_text', 'ja_custom_text_validation', 10, 3 );

The php hook doesn't seem to work. It doesn't seem to get fired at all.

Plugin "wpforms_process_validate_{$field_type}" hook is used, and validation is applied to a text field type, thus we see 'wpforms_process_validate_text'.

this php snipped adds same validation when creating the from itsleft. I need custom validation of submitted values. Want to create custom honeypot, that build-in sucks.