SendMail.php

<?php

namespace CommonBundle\Service;

use Symfony\Component\Templating\EngineInterface;

class SendMail extends \Swift_Message
{
    /**
     * @var string
     */
    protected $text_template = '';

    /**
     * @var string
     */
    protected $html_template = '';

    /**
     * @var array
     */
    protected $template_tags = [];

    /**
     * @var \Swift_Mailer
     */
    protected $mailer;

    /**
     * @var EngineInterface
     */
    protected $templateEngine;

    public function init(\Swift_Mailer $mailer, $config, EngineInterface $templateEngine)
    {
        $this->setFrom([$config['email'] => $config['company_name']]);
        $this->templateEngine = $templateEngine;
        $this->mailer = $mailer;
    }

    /**
     * Set text template.
     *
     * @param string $template
     *
     * @return SendMail
     */
    public function setTextTemplate($template)
    {
        $this->text_template = $template;

        return $this;
    }

    /**
     * Get text template.
     *
     * @return string
     */
    public function getTextTemplate()
    {
        return $this->text_template;
    }

    /**
     * Set html template.
     *
     * @param string $template
     *
     * @return SendMail
     */
    public function setHtmlTemplate($template)
    {
        $this->html_template = $template;

        return $this;
    }

    /**
     * Get html template.
     *
     * @return string
     */
    public function getHtmlTemplate()
    {
        return $this->html_template;
    }

    /**
     * Set template tags.
     *
     * @param string $template_tags
     *
     * @return SendMail
     */
    public function setTemplateTags($template_tags)
    {
        $this->template_tags = $template_tags;

        return $this;
    }

    /**
     * Get template tags.
     *
     * @return array
     */
    public function getTemplateTags()
    {
        return $this->template_tags;
    }

    public function addAttachment($data, $filename, $mime)
    {
        $attachment = \Swift_Attachment::newInstance($data, $filename, $mime);
        $this->attach($attachment);

        return $this;
    }

    public function addAttachmentFromPath($data, $filename, $mime)
    {
        $attachment = \Swift_Attachment::newInstance($data, $mime)->setFilename($filename);
        $this->attach($attachment);

        return $this;
    }

    public function send()
    {
        if ($this->getTextTemplate() !== '' && $this->getHtmlTemplate() !== '') {
            // if we have both text and html templates

            // set text body and pass tags
            $this->setBody($this->templateEngine->render($this->getTextTemplate(), $this->getTemplateTags()));

            // add html attachment and set content-type
            $this->addPart($this->templateEngine->render($this->getHtmlTemplate(), $this->getTemplateTags()), 'text/html');
        } elseif ($this->getTextTemplate()) {
            // if we have text template only
            // set body
            $this->setBody($this->templateEngine->render($this->getTextTemplate(), $this->getTemplateTags()));
        } elseif ($this->getHtmlTemplate()) {
            // if we have html template only

            // set body and pass tags
            $this->setBody($this->templateEngine->render($this->getHtmlTemplate(), $this->getTemplateTags()));

            // set content-type
            $this->setContentType('text/html');
        } else {
            throw new \LogicException('Not template was set');
        }

        return $this->mailer->send($this);
    }
}