<?php
class TwitterBridgeExtended extends BridgeAbstract{

	public function loadMetadatas() {

		$this->maintainer = "mitsukarenai";
		$this->name = "Twitter Bridge Extended";
		$this->uri = "https://twitter.com/";
		$this->description = "(same as Twitter Bridge, but with avatar, replies and RTs)";
		$this->update = "2016-08-09";

		$this->parameters["By keyword or hashtag"] =
		'[
			{
				"name" : "Keyword or #hashtag",
				"identifier" : "q"
			}
		]';

		$this->parameters["By username"] =
		'[
			{
				"name" : "username",
				"identifier" : "u"
			}
		]';

	}

	public function collectData(array $param){
		$html = ''; 
		if (isset($param['q'])) {   /* keyword search mode */
			$html = $this->file_get_html('https://twitter.com/search?q='.urlencode($param['q']).'&f=tweets') or $this->returnError('No results for this query.', 404);
		}
		elseif (isset($param['u'])) {   /* user timeline mode */
			$html = $this->file_get_html('https://twitter.com/'.urlencode($param['u']).'/with_replies') or $this->returnError('Requested username can\'t be found.', 404);
		}
		else {
			$this->returnError('You must specify a keyword (?q=...) or a Twitter username (?u=...).', 400);
		}

		foreach($html->find('div.js-stream-tweet') as $tweet) {
			$item = new \Item();
			// extract username and sanitize
			$item->username = $tweet->getAttribute('data-screen-name');
			// extract fullname (pseudonym)
			$item->fullname = $tweet->getAttribute('data-name'); 
			// get avatar link
			$item->avatar = $tweet->find('img', 0)->src;	
			// get TweetID
			$item->id = $tweet->getAttribute('data-tweet-id');
			// get tweet link	
			$item->uri = 'https://twitter.com'.$tweet->find('a.js-permalink', 0)->getAttribute('href');	
			// extract tweet timestamp
			$item->timestamp = $tweet->find('span.js-short-timestamp', 0)->getAttribute('data-time');
			// extract plaintext	
			$item->content_simple = str_replace('href="/', 'href="https://twitter.com/', html_entity_decode(strip_tags($tweet->find('p.js-tweet-text', 0)->innertext, '<a>'))); 
	
			// processing content links
			foreach($tweet->find('a') as $link) {
				if($link->hasAttribute('data-expanded-url') ) {
					$link->href = $link->getAttribute('data-expanded-url');
				}
				$link->removeAttribute('data-expanded-url');
				$link->removeAttribute('data-query-source');
				$link->removeAttribute('rel');
				$link->removeAttribute('class');
				$link->removeAttribute('target');
				$link->removeAttribute('title');
			}

			// process emojis (reduce size)
			foreach($tweet->find('img.Emoji') as $img){
				$img->style .= ' height: 1em;';
			}

			// get tweet text
			$cleanedTweet = str_replace('href="/', 'href="https://twitter.com/', $tweet->find('p.js-tweet-text', 0)->innertext);

			$item->content = <<<EOD
<a href="https://twitter.com/{$item->username}"><img style="align:top;width:75px;" alt="{$item->username}" src="{$item->avatar}" /></a>
<p>{$item->fullname}</p><br/>
<blockquote>{$cleanedTweet}</blockquote>
EOD;

			// generate the title
			$item->title = $item->fullname . ' (@'. $item->username . ') | ' . $item->content_simple;
			// put out
			$this->items[] = $item;
		}
	}

	public function getCacheDuration(){
		return 300; // 5 minutes
	}
}