<?php
/**
 * @author       Aicha Vack
 * @package      Joomla.Administrator
 * @subpackage   com_visforms
 * @link         https://www.vi-solutions.de
 * @license      GNU General Public License version 2 or later; see license.txt
 * @copyright    2021 vi-solutions
 * @since        Joomla 1.6
 */
namespace Visolutions\Plugin\Visforms\Vfcustomredirects\Extension;

// No direct access
defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Factory\MVCFactoryAwareTrait;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\HTML\HTMLHelper;
use Joomla\Database\DatabaseAwareTrait;
use Joomla\Event\SubscriberInterface;
use Joomla\String\StringHelper;
use Joomla\Event\DispatcherInterface;
use Visolutions\Component\Visforms\Site\Event\Visforms\VisformsBeforeSuccessActionEvent;

/**
 * Example Content Plugin
 *
 * @package        Joomla.Plugin
 * @subpackage     Content.joomla
 * @since          1.6
 */
class Vfcustomredirects extends CMSPlugin implements SubscriberInterface
{
    use MVCFactoryAwareTrait;
    use DatabaseAwareTrait;
	protected $name;
	protected $fid;
    protected $autoloadLanguage = true;

	public function __construct(DispatcherInterface $subject, array $config) {
		parent::__construct($subject, $config);
		$this->name = 'visformscustomredirects';
		$this->fid = Factory::getApplication()->getInput()->getInt('id', 0);
	}

    public static function getSubscribedEvents(): array {
        return [
            'onVisformsBeforeSuccessAction' => 'onVisformsBeforeSuccessAction',
        ];
    }

	public function onVisformsBeforeSuccessAction(VisformsBeforeSuccessActionEvent $event): void {
        $context = $event->getContext();
        $form = $event->getForm();
        $fields = $event->getFields();
		// Skip plugin if context is wrong
		if (($context != 'com_visforms.form') && ($context != 'mod_visforms.form') && ($context != 'plg_vfformview.form')) {
			return;
		}
		$app = Factory::getApplication();
		if ($app->isClient('administrator')) {
			return;
		}
		if (empty($form->id)) {
			return;
		}
		else {
			$this->fid = $form->id;
		}
		$redirectUrl = $this->getRedirectUrl($context, $form, $fields);
		if (!empty($redirectUrl)) {
			$form->redirecturl = $redirectUrl;
		}
	}

	private function getRedirectUrl($context, $form, $fields) {
		foreach ($form->fields as $field) {
		    if (!empty($field->isDisabled)) {
		        continue;
            }
			if (in_array($field->typefield, array('multicheckbox', 'select', 'radio', 'multicheckboxsql', 'selectsql', 'radiosql')) && is_string($field->dbValue)) {
				$dbValues = HTMLHelper::_('visformsselect.explodeMsDbValue', $field->dbValue);
				foreach ($field->opts as $option) {
					if (!empty($option['redirecturl'])) {
						if (is_array($dbValues) && in_array($option['value'], $dbValues) && !empty(StringHelper::trim($option['redirecturl']))) {
							return $option['redirecturl'];
						}
					}
				}
			}
		}
		return '';
	}
}