<?php

class GolemBridge extends FeedExpander {
	const MAINTAINER = 'Mynacol';
	const NAME = 'Golem Bridge';
	const URI = 'https://www.golem.de/';
	const CACHE_TIMEOUT = 1800; // 30min
	const DESCRIPTION = 'Returns the full articles instead of only the intro';
	const PARAMETERS = array(array(
		'category' => array(
			'name' => 'Category',
			'type' => 'list',
			'values' => array(
				'Alle News'
				=> 'https://rss.golem.de/rss.php?feed=ATOM1.0',
				'Audio/Video'
				=> 'https://rss.golem.de/rss.php?ms=audio-video&feed=ATOM1.0',
				'Auto'
				=> 'https://rss.golem.de/rss.php?ms=auto&feed=ATOM1.0',
				'Foto'
				=> 'https://rss.golem.de/rss.php?ms=foto&feed=ATOM1.0',
				'Games'
				=> 'https://rss.golem.de/rss.php?ms=games&feed=ATOM1.0',
				'Handy'
				=> 'https://rss.golem.de/rss.php?ms=handy&feed=ATOM1.0',
				'Internet'
				=> 'https://rss.golem.de/rss.php?ms=internet&feed=ATOM1.0',
				'Mobil'
				=> 'https://rss.golem.de/rss.php?ms=mobil&feed=ATOM1.0',
				'Open Source'
				=> 'https://rss.golem.de/rss.php?ms=open-source&feed=ATOM1.0',
				'Politik/Recht'
				=> 'https://rss.golem.de/rss.php?ms=politik-recht&feed=ATOM1.0',
				'Security'
				=> 'https://rss.golem.de/rss.php?ms=security&feed=ATOM1.0',
				'Desktop-Applikationen'
				=> 'https://rss.golem.de/rss.php?ms=desktop-applikationen&feed=ATOM1.0',
				'Software-Entwicklung'
				=> 'https://rss.golem.de/rss.php?ms=softwareentwicklung&feed=ATOM1.0',
				'Wirtschaft'
				=> 'https://rss.golem.de/rss.php?ms=wirtschaft&feed=ATOM1.0',
				'Wissenschaft'
				=> 'https://rss.golem.de/rss.php?ms=wissenschaft&feed=ATOM1.0'
			)
		),
		'limit' => array(
			'name' => 'Limit',
			'type' => 'number',
			'required' => false,
			'title' => 'Specify number of full articles to return',
			'defaultValue' => 5
		)
	));
	const LIMIT = 5;
	const HEADERS = array('Cookie: golem_consent20=simple|220101;');

	public function collectData() {
		$this->collectExpandableDatas(
			$this->getInput('category'),
			$this->getInput('limit') ?: static::LIMIT
		);
	}

	protected function parseItem($item) {
		$item = parent::parseItem($item);
		$item['content'] = $item['content'] ?? '';
		$uri = $item['uri'];

		while ($uri) {
			$articlePage = getSimpleHTMLDOMCached($uri, static::CACHE_TIMEOUT, static::HEADERS);

			// URI without RSS feed reference
			$item['uri'] = $articlePage->find('head meta[name="twitter:url"]', 0)->content;

			$author = $articlePage->find('article header .authors .authors__name', 0);
			if ($author) {
				$item['author'] = $author->innertext;
			}

			$item['content'] .= $this->extractContent($articlePage);

			// next page
			$nextUri = $articlePage->find('link[rel="next"]', 0);
			$uri = $nextUri ? static::URI . $nextUri->href : null;
		}

		return $item;
	}

	private function extractContent($page) {
		$item = '';

		$article = $page->find('article', 0);

		// delete known bad elements
		foreach($article->find('div[id*="adtile"], #job-market, #seminars,
			div.gbox_affiliate, div.toc, .embedcontent') as $bad) {
			$bad->remove();
		}
		// reload html, as remove() is buggy
		$article = str_get_html($article->outertext);

		if ($pageHeader = $article->find('header.paged-cluster-header h1', 0)) {
			$item .= $pageHeader;
		}

		$header = $article->find('header', 0);
		foreach($header->find('p, figure') as $element) {
			$item .= $element;
		}

		$content = $article->find('div.formatted', 0);

		// full image quality
		foreach($content->find('img[data-src-full][src*="."]') as $img) {
			$img->src = $img->getAttribute('data-src-full');
		}

		foreach($content->find('p, h1, h3, img[src*="."]') as $element) {
			$item .= $element;
		}

		return $item;
	}
}