elephantly/AmpConverterBundle

<?php

namespace Elephantly\AmpConverterBundle\Converter\Media;

use Elephantly\AmpConverterBundle\Converter\AmpTagConverterInterface;
use Elephantly\AmpConverterBundle\Converter\AmpTagConverter;
use DOMNode;
use DOMXPath;
use Elephantly\AmpConverterBundle\Client\OEmbedClient;
use Elephantly\AmpConverterBundle\Cleaner\AmpDimensionsCleaner;

/**
* primary @author purplebabar(lalung.alexandre@gmail.com)
*/
class AmpYoutubeIframeConverter extends AmpTagConverter implements AmpTagConverterInterface
{

    public function __construct($options = array())
    {
        $this->attributes = array('autoplay', 'data-videoid', 'data-param-*');
        $this->mandatoryAttributes = array('data-videoid');
        $this->options = $options;
    }

    public function getDefaultValue($attribute)
    {
        switch ($attribute) {
            case 'data-videoid':
                $src = $this->inputElement->getAttribute('src');
                preg_match('/(embed)\/*([\w-]*)|(watch)\?v=([\w-]*)/', $src, $matches);
                switch (count($matches)) {
                    case 3:
                        return $matches[2];
                        break;
                    case 5:
                        return $matches[4];
                        break;
                }
                return null;
            case 'width':
                return 560;
            case 'height':
                return 315;
            default:
                return null;
        }
    }

    public function setup()
    {
        if (!$this->getDefaultValue('data-videoid')) {
            $this->isInputValid = false;
        }

    }

    public function callback()
    {

        $isConsistent = (AmpDimensionsCleaner::isLegal($this->outputElement->getAttribute('width')) && AmpDimensionsCleaner::isLegal($this->outputElement->getAttribute('height')));

        if (!$isConsistent) {
            $this->outputElement->setAttribute('width', $this->getDefaultValue('width'));
            $this->outputElement->setAttribute('height', $this->getDefaultValue('height'));
        }

    }

    public static function getIdentifier()
    {
        return 'youtube_iframe';
    }

    public function getSelector()
    {
        return 'iframe[src*="youtube.com"]';
    }

    public function getAmpTagName()
    {
        return 'amp-youtube';
    }

    public function hasScriptTag()
    {
        return true;
    }

    public function getScriptTag()
    {
        return '<script async custom-element="amp-youtube" src="https://cdn.ampproject.org/v0/amp-youtube-0.1.js"></script>';
    }

}