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<?php

namespace App\FrontModule\Components;

use App;
use Nette\Application\UI\Control;
use Nette\Caching\Cache;
use Nette\Caching\IStorage;

/**
 * Class Youtube
 */
class Youtube extends FrontControl
{
    public $presets;
    public $content;
    public $cacheStorage;

    public function __construct(App\Model\Presets $presets, IStorage $IStorage)
    {
        $this->presets = $presets;
        $this->cacheStorage = $IStorage;
    }

    private function fetchData()
    {

        $user = $this->presets->defaults['keys']['youtube']['user'];
        $path = "https://www.youtube.com/feeds/videos.xml?channel_id=$user";

        try {
            $out = json_decode(json_encode(@new \SimpleXMLIterator($path, null, true)), TRUE);

            return $out;
        } catch (\Exception $e) {
            return false;
        }
    }


    public function getData()
    {

        $cache = new Cache($this->cacheStorage, 'youtubePosts');

        try {
            $out = $cache->load("videos");
        } catch (\Exception $e) {
            $out = false;
        }

        if (empty($out)) {
            try {
                $data = self::fetchData();

                if ($data) {
                    $out = $data['entry'];
                    $cache->save("videos", $out, array(
                        Cache::EXPIRATION => '+30 minutes',
                        Cache::SLIDING => TRUE
                    ));
                } else {
                    $out = false;
                }

            } catch (\Exception $e) {
                $out = false;
            }
        }
        return $out;

    }


	public function renderDefault(array $config = array())
	{	
        $config = $this->getCurrentConfig($config);
        $this->template->presets = $this->presets->getPresets();
        $this->template->youtubeData = $this->getData();

		$this->render($config);
	}



}