<?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 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]);
                $message->addTo(
                                $params[self::TO_EMAIL],
                                isset($params[self::TO_NAME]) ? $params[self::TO_NAME] : null)
                        ->addFrom($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($params[self::ATTACHMENT_DATA]) && isset($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) ;
        }
}