<?php

class DarkReadingBridge extends FeedExpander
{
    const MAINTAINER = 'ORelio';
    const NAME = 'Dark Reading Bridge';
    const URI = 'https://www.darkreading.com/';
    const DESCRIPTION = 'Returns the newest articles from Dark Reading';

    const PARAMETERS = [ [
        'feed' => [
            'name' => 'Feed',
            'type' => 'list',
            'values' => [
                'All Dark Reading Stories' => '000_AllArticles',
                'Attacks/Breaches' => '644_Attacks/Breaches',
                'Application Security' => '645_Application%20Security',
                'Database Security' => '646_Database%20Security',
                'Cloud' => '647_Cloud',
                'Endpoint' => '648_Endpoint',
                'Authentication' => '649_Authentication',
                'Privacy' => '650_Privacy',
                'Mobile' => '651_Mobile',
                'Perimeter' => '652_Perimeter',
                'Risk' => '653_Risk',
                'Compliance' => '654_Compliance',
                'Operations' => '655_Operations',
                'Careers and People' => '656_Careers%20and%20People',
                'Identity and Access Management' => '657_Identity%20and%20Access%20Management',
                'Analytics' => '658_Analytics',
                'Threat Intelligence' => '659_Threat%20Intelligence',
                'Security Monitoring' => '660_Security%20Monitoring',
                'Vulnerabilities / Threats' => '661_Vulnerabilities%20/%20Threats',
                'Advanced Threats' => '662_Advanced%20Threats',
                'Insider Threats' => '663_Insider%20Threats',
                'Vulnerability Management' => '664_Vulnerability%20Management',
            ]
        ],
        'limit' => self::LIMIT,
    ]];

    public function collectData()
    {
        $feed = $this->getInput('feed');
        $feed_splitted = explode('_', $feed);
        $feed_id = $feed_splitted[0];
        $feed_name = $feed_splitted[1];
        if (empty($feed) || !ctype_digit($feed_id) || !preg_match('/[A-Za-z%20\/]/', $feed_name)) {
            returnClientError('Invalid feed, please check the "feed" parameter.');
        }
        $feed_url = $this->getURI() . 'rss_simple.asp';
        if ($feed_id != '000') {
            $feed_url .= '?f_n=' . $feed_id . '&f_ln=' . $feed_name;
        }
        $limit = $this->getInput('limit') ?? 10;
        $this->collectExpandableDatas($feed_url, $limit);
    }

    protected function parseItem($item)
    {
        $item = parent::parseItem($item);

        $article = getSimpleHTMLDOMCached($item['uri']);
        $item['content'] = $this->extractArticleContent($article);
        $item['enclosures'] = []; //remove author profile picture
        $image = $article->find('meta[property="og:image"]', 0);
        if (is_object($image)) {
            $image = $image->content;
            $item['enclosures'] = [$image];
        }
        return $item;
    }

    private function extractArticleContent($article)
    {
        $content = $article->find('div.article-content', 0)->innertext;

        foreach (
            [
            '<div class="divsplitter',
            '<div style="float: left; margin-right: 2px;',
            '<div class="more-insights',
            '<div id="more-insights',
            ] as $div_start
        ) {
            $content = stripRecursiveHTMLSection($content, 'div', $div_start);
        }

        return convertLazyLoading($content);
    }
}