/**
 *  @package         Convert Forms
 *  @version         2.4.1 Pro
 * 
 *  @author          Tassos Marinos <info@tassos.gr>
 *  @link            http://www.tassos.gr
 *  @copyright       Copyright © 2018 Tassos Marinos All Rights Reserved
 *  @license         GNU GPLv3 <http://www.gnu.org/licenses/gpl.html> or later
 *  
 *  Each reCAPTCHA user response token should be used only once. 
 *  
 *  If a verification attempt has been made with a particular token, it cannot be used again
 *  and we need to reset the CAPTCHA widget and ask the end user to verify it again.
 */
!(function(window, document) {
	'use strict';

	// If the Google reCAPTCHA script is not loaded, display an error message next to each element.
	document.addEventListener('ConvertFormsInit', function() {
		// Validate the recaptcha global object exists
		if (typeof grecaptcha === "object") {
			return;
		}

		// Check to see if we have un-initialized captcha elements
		var invalid_captchas = document.querySelectorAll('.nr-recaptcha:not([data-recaptcha-widget-id])');

		// Success!
		if (invalid_captchas.length == 0) {
			return;
		}

		// Display the error message next to each reCATCHA element.
		invalid_captchas.forEach(function(el) {
			el.innerHTML = Joomla.Text._('COM_CONVERTFORMS_RECAPTCHA_NOT_LOADED');
		});
	});

	document.addEventListener('ConvertFormsAfterSubmit', function(event) {
		var form = event.detail.instance.selector;

		// Proceed only if form has reCAPTCHA
		var captcha = form.querySelector('.g-recaptcha');

		if (captcha) {
			var widgetID = captcha.getAttribute('data-recaptcha-widget-id');

			if (widgetID) {
				grecaptcha.reset(widgetID);
			}
		}
	});
})(window, document);