<?php
/**
 * @package DJ-Catalog2
 * @copyright Copyright (C) DJ-Extensions.com, All rights reserved.
 * @license http://www.gnu.org/licenses GNU/GPL
 * @author url: http://dj-extensions.com
 * @author email contact@dj-extensions.com
 */
defined('_JEXEC') or die('Restricted access');
use Joomla\CMS\Factory;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Filesystem\Path;
use Joomla\CMS\Component\ComponentHelper;
use Joomla\CMS\Filesystem\File;
class DJCatalog2HelperMailer
{

	public static function prepare(&$data, $template)
	{
		$template->body = self::parseTemplate($data, $template);
		$template->subject = self::parseSubject($data, $template);

		$data['message'] = $template->body;
		$data['subject'] = $template->subject;
	}

	public static function send(&$data, $template, $CC = array(), $BCC = array(), $replyTo = null, $tracking = false)
	{
		$app = Factory::getApplication();

		if ($tracking) {
			$trackingID = $data['notification_id'];
			$trackingCode = base64_encode($data['sent_time']);
			$pixel = '<img width="1" height="1" alt="Pixel" src="' . Uri::root(false) . 'index.php?option=com_djcatalog2&task=pixelMsg&pixel=' . $trackingID . '&code=' . $trackingCode . '&file=pixel.jpg" />';
			$template->body = str_replace('</body>', $pixel . '</body>', $template->body);
		}

		$mailfrom = $app->getCfg('mailfrom');
		$fromname = $app->getCfg('fromname');

		$mail = Factory::getMailer();

		$mail->addRecipient($data['recipient_email']);
		$mail->setSender(array(
			$mailfrom,
			$fromname
		));

		if ($replyTo) {
			$mail->addReplyTo($replyTo);
		}

		$mail->setSubject($template->subject);
		$mail->setBody($template->body);
		$mail->isHtml(true);

		if (is_array($CC) && count($CC) > 0) {
			foreach ($CC as $mailCC) {
				$mail->addCC($mailCC);
			}
		}

		if (is_array($BCC) && count($BCC) > 0) {
			foreach ($BCC as $mailBCC) {
				$mail->addBCC($mailBCC);
			}
		}

		$attachments = DJCatalog2HelperAttachment::getFiles($data);

		if (is_array($attachments) && count($attachments) > 0) {
			foreach ($attachments as $file) {
				$mail->addAttachment(Path::clean(JPATH_ROOT . '/' . $file['fullpath']), $file['name']);
			}
		}

		$templateAttachments = (!empty($template->attachments) && $template->attachments != '{}' && $template->attachments != '[]') ? json_decode((string)$template->attachments, true) : false;

		if (!empty($templateAttachments)) {
			foreach ($templateAttachments as $file) {
				if (File::exists(Path::clean(JPATH_ROOT . '/' . $file['fullpath']))) {
					$mail->addAttachment(Path::clean(JPATH_ROOT . '/' . $file['fullpath']), $file['fullname']);
				}
			}
		}

		try {
			$ret = $mail->Send();
			return $ret;
		} catch (Exception $exception) {
			$app->enqueueMessage($exception->getMessage(), 'warning');
			return 0;
		}

	}

	protected static function parseTemplate($data, $template)
	{
		$body = (string)$template->body;

		$juri = str_replace('/administrator', '', Uri::base(false));

		foreach ($data as $key => $value) {
			if (is_object($value) || is_array($value)) continue;
			$body = \Joomla\String\StringHelper::str_ireplace('[[' . $key . ']]', $value, $body);
		}

		$body = preg_replace('#(href|src)="([^:"]*)("|(?:(?:%20|\s|\+)[^"]*"))#', '$1="' . $juri . '$2$3', $body);

		return self::addStyles($body);
	}

	protected static function parseSubject($data, $template)
	{
		$subject = $template->subject;
		if (trim((string)$subject) == '') {
			$subject = $data['subject'];
		}

		foreach ($data as $key => $value) {
			$subject = \Joomla\String\StringHelper::str_ireplace('[[' . $key . ']]', $value, $subject);
		}

		return $subject;
	}

	protected static function addStyles($body)
	{
		require_once JPATH_ROOT . '/components/com_djcatalog2/assets/emogrifier/Emogrifier.php';

		$params = ComponentHelper::getParams('com_djcatalog2');
		$theme = $params->get('theme', 'default');

		$css_file = JPATH_ROOT . '/components/com_djcatalog2/themes/default/css/emails.css';

		if ($theme && $theme != 'default' && File::exists(JPATH_ROOT . '/components/com_djcatalog2/themes/' . $theme . '/css/emails.css')) {
			$css_file = JPATH_ROOT . '/components/com_djcatalog2/themes/' . $theme . '/css/emails.css';
		}

		$css = file_get_contents($css_file);
		$emogrifier = new \Pelago\Emogrifier();

		$emogrifier->setHtml($body);
		$emogrifier->setCss($css);

		$mergedHtml = $emogrifier->emogrify();

		return $mergedHtml;
	}
}