staempfli/magento2-module-seo

<?php
declare(strict_types=1);
/**
 * Copyright © 2017 Stämpfli AG. All rights reserved.
 * @author marcel.hauri@staempfli.com
 */

namespace Staempfli\Seo\Block;

use Magento\Framework\View\Element\Template;
use Staempfli\Seo\Model\AdapterInterface;
use Staempfli\Seo\Model\Config;

class TwitterCard extends Template implements SeoBlockInterface
{
    const ACTIVE_PATH = 'seo/twitter_card/active';
    /**
     * @var Config
     */
    private $config;
    /**
     * @var AdapterInterface
     */
    private $adapter;

    public function __construct(
        \Magento\Framework\View\Element\Template\Context $context,
        Config $config,
        AdapterInterface $adapter,
        array $data = []
    ) {
        parent::__construct($context, $data);
        $this->config = $config;
        $this->adapter = $adapter;
    }

    /**
     * @return string
     */
    public function getMetaData()
    {
        if (!$this->isActive()) {
            return '';
        }

        $property = $this->adapter->getProperty();
        return $property
            ->setPrefix('twitter:')
            ->addProperty('card', $this->config->getDefaultTwitterCardType())
            ->addProperty('site', $this->config->getDefaultTwitterCardSite())
            ->addProperty('creator', $this->config->getDefaultTwitterCardCreator())
            ->toHtml();
    }

    private function isActive()
    {
        return $this->config->isActive(self::ACTIVE_PATH);
    }
}