<?php
#ini_set('display_errors', 'On');
#error_reporting(E_ALL);
class ArstechnicaBridge extends BridgeAbstract {

  public $maintainer = "prysme";
  public $name = "ArstechnicaBridge";
  public $uri = "http://arstechnica.com";
  public $description = "The PC enthusiast's resource. Power users and the tools they love, without computing religion";

  function StripWithDelimiters($string, $start, $end) {
    while (strpos($string, $start) !== false) {
      $section_to_remove = substr($string, strpos($string, $start));
      $section_to_remove = substr($section_to_remove, 0, strpos($section_to_remove, $end) + strlen($end));
      $string = str_replace($section_to_remove, '', $string);
    } return $string;
  }

  function StripCDATA($string) {
    $string = str_replace('<![CDATA[', '', $string);
    $string = str_replace(']]>', '', $string);
    return $string;
  }

  function ExtractContent($url) {
    #echo $url;
    $html2 = $this->getSimpleHTMLDOM($url);

    $text = $html2->find("section[id='article-guts']", 0);
                        /*foreach ($text->find('<aside id="social-left">') as $node)
                        { $node = NULL; }*/
    $text = $this->StripWithDelimiters($text->innertext,'<aside id="social-left">','</aside>');
    $text = $this->StripWithDelimiters($text,'<figcaption class="caption">','</figcaption>');
    $text = $this->StripWithDelimiters($text,'<div class="gallery shortcode-gallery">','</div>');
    //error_log("ICI", 0);
    //error_log($text, 0);

    return $text;
  }

  public function collectData(){

    $html = $this->getSimpleHTMLDOM('http://feeds.arstechnica.com/arstechnica/index') or $this->returnServerError('Could not request NextInpact.');
    $limit = 0;

    foreach($html->find('item') as $element) {
      if($limit < 5) {
        $item = array();
        $item['title'] = $this->StripCDATA($element->find('title', 0)->innertext);
        $item['uri'] = $this->StripCDATA($element->find('guid', 0)->plaintext);
        $item['author'] = $this->StripCDATA($element->find('author', 0)->innertext);
        $item['timestamp'] = strtotime($element->find('pubDate', 0)->plaintext);
        $item['content'] = $this->ExtractContent($item['uri']);
        //$item['content'] = $item['uri'];
        $this->items[] = $item;
        $limit++;
      }
    }

  }

  public function getCacheDuration() {
    return 7200; // 2h
  }

}