<?php

class FM4Bridge extends BridgeAbstract
{
	const MAINTAINER = 'joni1993';
	const NAME = 'FM4 Bridge';
	const URI = 'https://fm4.orf.at';
	const CACHE_TIMEOUT = 1800; // 30min
	const DESCRIPTION = 'Feed for FM4 articles by tags (authors)';
	const PARAMETERS = array(
		array(
			'tag' => array(
				'name' => 'Tag (author, category, ...)',
				'title' => 'Tag to retrieve',
				'exampleValue' => 'musik'
			),
			'loadcontent' => array(
				'name' => 'Load Full Article Content',
				'title' => 'Retrieve full content of articles (may take longer)',
				'type' => 'checkbox'
			),
			'pages' => array(
				'name' => 'Pages',
				'title' => 'Amount of pages to load',
				'type' => 'number',
				'defaultValue' => 1
			)
		)
	);

	private function getPageData($tag, $page) {
		if($tag)
			$uri = self::URI . '/tags/' . $tag;
		else
			$uri = self::URI;

		$uri = $uri . '?page=' . $page;

		$html = getSimpleHTMLDOM($uri)
		or returnServerError('Error while downloading the website content');

		$page_items = array();

		foreach ($html->find('div[class*=listItem]') as $article) {
			$item = array();

			$item['uri'] = $article->find('a', 0)->href;
			$item['title'] = $article->find('h2', 0)->plaintext;
			$item['author'] = $article->find('p[class*=keyword]', 0)->plaintext;
			$item['timestamp'] = strtotime($article->find('p[class*=time]', 0)->plaintext);

			if ($this->getInput('loadcontent')) {
				$item['content'] = getSimpleHTMLDOM($item['uri'])->find('div[class=storyText]', 0)->innertext
				or returnServerError('Error while downloading the full article');
			}

			$page_items[] = $item;
		}
		return $page_items;
	}

	public function collectData() {
		for ($cur_page = 1; $cur_page <= $this->getInput('pages'); $cur_page++) {
			$this->items = array_merge($this->items, $this->getPageData($this->getInput('tag'), $cur_page));
		}
	}
}