<?php

namespace Lc\ShopBundle\Services;

use Lc\ShopBundle\Context\MerchantUtilsInterface;
use Lc\ShopBundle\Model\Merchant;
use Mailjet\MailjetSwiftMailer\SwiftMailer\MailjetTransport;
use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
use Twig\Environment;

class MailUtils
{
        const SUBJECT = 'subject';
        const SUBJECT_PREFIX = 'subject-prefix';
        const TO_EMAIL = 'to-email';
        const TO_NAME = 'to-name';
        const FROM_EMAIL = 'from-email';
        const FROM_NAME = 'from-name';
        const REPLY_TO = 'reply-to';
        const CONTENT_TEMPLATE = 'content-template';
        const CONTENT_DATA = 'content-data';
        const ATTACHMENT_DATA = 'attachment-data';
        const ATTACHMENT_FILENAME = 'attachment-filename';
        const ATTACHMENT_CONTENT_TYPE = 'attachment-content-type';

        protected $transport;
        protected $templating;
        protected $parameterBag;
        protected $merchantUtils;

        public function __construct(MailjetTransport $mailjetTransport, Environment $templating, ParameterBagInterface $parameterBag, MerchantUtilsInterface $merchantUtils)
        {
                $this->transport = $mailjetTransport;
                $this->templating = $templating;
                $this->parameterBag = $parameterBag;
                $this->merchantUtils = $merchantUtils;
        }

        public function send($params = [])
        {
                $merchantCurrent = $this->merchantUtils->getMerchantCurrent();

                $merchantConfigEmailFrom = $merchantCurrent->getMerchantConfig('email-from');
                $emailFrom = isset($params[self::FROM_EMAIL]) ? $params[self::FROM_EMAIL] : $merchantConfigEmailFrom;

                $merchantConfigEmailFromName = $merchantCurrent->getMerchantConfig('email-from-name');
                $emailFromName = isset($params[self::FROM_NAME]) ? $params[self::FROM_NAME] : $merchantConfigEmailFromName;

                $merchantConfigEmailSubjectPrefix = $merchantCurrent->getMerchantConfig('email-subject-prefix');
                $emailSubjectPrefix = isset($params[self::SUBJECT_PREFIX]) ? $params[self::SUBJECT_PREFIX] : $merchantConfigEmailSubjectPrefix;
                if ($emailSubjectPrefix && strlen($emailSubjectPrefix)) {
                        $emailSubjectPrefix .= ' ';
                }

                $message = new \Swift_Message($emailSubjectPrefix . $params[self::SUBJECT]);


                if ($this->parameterBag->get('mailjet.dev.redirect.active')==1) {
                        $message->addTo($this->parameterBag->get('mailjet.dev.redirect.email'),
                                isset($params[self::TO_NAME]) ? $params[self::TO_NAME] : null);
                } else {
                        $message->addTo(
                                $params[self::TO_EMAIL],
                                isset($params[self::TO_NAME]) ? $params[self::TO_NAME] : null);
                }

                $message->addFrom($emailFrom, $emailFromName)
                        ->setBody($this->templating->render($params[self::CONTENT_TEMPLATE] . '-html.html.twig', $params[self::CONTENT_DATA]), 'text/html')
                        ->addPart($this->templating->render($params[self::CONTENT_TEMPLATE] . '-text.html.twig', $params[self::CONTENT_DATA]));

                if (isset($params[self::REPLY_TO]) && strlen($params[self::REPLY_TO])) {
                        $message->addReplyTo($params[self::REPLY_TO]);
                }

                if (isset($params[self::ATTACHMENT_DATA]) && isset($params[self::ATTACHMENT_FILENAME]) && isset($params[self::ATTACHMENT_CONTENT_TYPE])) {
                        $message->attach(\Swift_Attachment::newInstance(
                                $params[self::ATTACHMENT_DATA],
                                $params[self::ATTACHMENT_FILENAME],
                                $params[self::ATTACHMENT_CONTENT_TYPE]
                        ));
                }

                $this->transport->send($message);
        }
}