nabble/ajde

<?php

class Ajde_Embed_Youtube extends Ajde_Embed
{
    public function convertUrlToEmbed()
    {
        if (substr($this->_code, 0, 7) == 'http://' || substr($this->_code, 0, 8) == 'https://') {
            $ytid = $this->_getYoutubeId();
            $this->_code = '<iframe width="425" height="700" src="http://www.youtube.com/embed/'.$ytid.'" frameborder="0" allowfullscreen></iframe>';
        }
    }

    public function getCode()
    {
        $this->convertUrlToEmbed();
        $this->_setHeight();
        $this->_setWidth();
        $this->_code = str_replace('" frameborder', '?rel=0&amp;wmode=transparent&amp;autohide=1" frameborder',
            $this->_code);

        return $this->_code;
    }

    private function _getYoutubeId()
    {
        if (substr($this->_code, 0, 15) == 'http://youtu.be') {
            return substr($this->_code, 16, 11);
        } else {
            if (substr($this->_code, 0, 7) == 'http://' || substr($this->_code, 0, 8) == 'https://') {
                parse_str(parse_url($this->_code, PHP_URL_QUERY), $querystringArray);

                return $querystringArray['v'];
            } else {
                $matches = [];
                preg_match('%embed\/(.+?)[\/\?\"]%', $this->_code, $matches);

                return isset($matches[1]) ? substr($matches[1], 0, 11) : null;
            }
        }
    }

    public function getThumbnail()
    {
        $ytid = $this->_getYoutubeId();
        if ($ytid) {
            $fullres = 'http://img.youtube.com/vi/'.$ytid.'/maxresdefault.jpg';
            $ch = curl_init($fullres);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_exec($ch);
            $http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);
            if ($http_status == 200) {
                return $fullres;
            } else {
                return 'http://img.youtube.com/vi/'.$ytid.'/0.jpg';
            }
        } else {
            return;
        }
    }
}