<?php
class AnidexBridge extends BridgeAbstract {

	const MAINTAINER = 'ORelio';
	const NAME = 'Anidex';
	const URI = 'http://anidex.info/'; // anidex.info has ddos-guard so we need to use anidex.moe
	const ALTERNATE_URI = 'https://anidex.moe/'; // anidex.moe returns 301 unless Host is set to anidex.info
	const ALTERNATE_HOST = 'anidex.info'; // Correct host for requesting anidex.moe without 301 redirect
	const DESCRIPTION = 'Returns the newest torrents, with optional search criteria.';
	const PARAMETERS = array(
		array(
			'id' => array(
				'name' => 'Category',
				'type' => 'list',
				'values' => array(
					'All categories' => '0',
					'Anime' => '1,2,3',
					'Anime - Sub' => '1',
					'Anime - Raw' => '2',
					'Anime - Dub' => '3',
					'Live Action' => '4,5',
					'Live Action - Sub' => '4',
					'Live Action - Raw' => '5',
					'Light Novel' => '6',
					'Manga' => '7,8',
					'Manga - Translated' => '7',
					'Manga - Raw' => '8',
					'Music' => '9,10,11',
					'Music - Lossy' => '9',
					'Music - Lossless' => '10',
					'Music - Video' => '11',
					'Games' => '12',
					'Applications' => '13',
					'Pictures' => '14',
					'Adult Video' => '15',
					'Other' => '16'
				)
			),
			'lang_id' => array(
				'name' => 'Language',
				'type' => 'list',
				'values' => array(
					'All languages' => '0',
					'English' => '1',
					'Japanese' => '2',
					'Polish' => '3',
					'Serbo-Croatian' => '4',
					'Dutch' => '5',
					'Italian' => '6',
					'Russian' => '7',
					'German' => '8',
					'Hungarian' => '9',
					'French' => '10',
					'Finnish' => '11',
					'Vietnamese' => '12',
					'Greek' => '13',
					'Bulgarian' => '14',
					'Spanish (Spain)' => '15',
					'Portuguese (Brazil)' => '16',
					'Portuguese (Portugal)' => '17',
					'Swedish' => '18',
					'Arabic' => '19',
					'Danish' => '20',
					'Chinese (Simplified)' => '21',
					'Bengali' => '22',
					'Romanian' => '23',
					'Czech' => '24',
					'Mongolian' => '25',
					'Turkish' => '26',
					'Indonesian' => '27',
					'Korean' => '28',
					'Spanish (LATAM)' => '29',
					'Persian' => '30',
					'Malaysian' => '31'
				)
			),
			'group_id' => array(
				'name' => 'Group ID',
				'type' => 'number'
			),
			'r' => array(
				'name' => 'Hide Remakes',
				'type' => 'checkbox'
			),
			'b' => array(
				'name' => 'Only Batches',
				'type' => 'checkbox'
			),
			'a' => array(
				'name' => 'Only Authorized',
				'type' => 'checkbox'
			),
			'q' => array(
				'name' => 'Keyword',
				'description' => 'Keyword(s)',
				'type' => 'text'
			),
			'h' => array(
				'name' => 'Adult content',
				'type' => 'list',
				'values' => array(
					'No filter' => '0',
					'Hide +18' => '1',
					'Only +18' => '2'
				)
			)
		)
	);

	public function collectData() {

		// Build Search URL from user-provided parameters
		$search_url = self::ALTERNATE_URI . '?s=upload_timestamp&o=desc';
		foreach (array('id', 'lang_id', 'group_id') as $param_name) {
			$param = $this->getInput($param_name);
			if (!empty($param) && intval($param) != 0 && ctype_digit(str_replace(',', '', $param))) {
				$search_url .= '&' . $param_name . '=' . $param;
			}
		}
		foreach (array('r', 'b', 'a') as $param_name) {
			$param = $this->getInput($param_name);
			if (!empty($param) && boolval($param)) {
				$search_url .= '&' . $param_name . '=1';
			}
		}
		$query = $this->getInput('q');
		if (!empty($query)) {
			$search_url .= '&q=' . urlencode($query);
		}
		$opt = array();
		$h = $this->getInput('h');
		if (!empty($h) && intval($h) != 0 && ctype_digit($h)) {
			$opt[CURLOPT_COOKIE] = 'anidex_h_toggle=' . $h;
		}

		// We need to use a different Host HTTP header to reach the correct page on ALTERNATE_URI
		$headers = array('Host: ' . self::ALTERNATE_HOST);

		// The HTTPS certificate presented by anidex.moe is for anidex.info. We need to ignore this.
		// As a consequence, the bridge is intentionally marked as insecure by setting self::URI to http://
		$opt[CURLOPT_SSL_VERIFYHOST] = 0;
		$opt[CURLOPT_SSL_VERIFYPEER] = 0;

		// Retrieve torrent listing from search results, which does not contain torrent description
		$html = getSimpleHTMLDOM($search_url, $headers, $opt)
		or returnServerError('Could not request Anidex: ' . $search_url);
		$links = $html->find('a');
		$results = array();
		foreach ($links as $link)
			if (strpos($link->href, '/torrent/') === 0 && !in_array($link->href, $results))
				$results[] = $link->href;
		if (empty($results) && empty($this->getInput('q')))
			returnServerError('No results from Anidex: ' . $search_url);

		//Process each item individually
		foreach ($results as $element) {

			//Limit total amount of requests
			if(count($this->items) >= 20) {
				break;
			}

			$torrent_id = str_replace('/torrent/', '', $element);

			//Ignore entries without valid torrent ID
			if ($torrent_id != 0 && ctype_digit($torrent_id)) {

				//Retrieve data for this torrent ID
				$item_browse_uri = self::URI . 'torrent/' . $torrent_id;
				$item_fetch_uri = self::ALTERNATE_URI . 'torrent/' . $torrent_id;

				//Retrieve full description from torrent page (cached for 24 hours: 86400 seconds)
				if ($item_html = getSimpleHTMLDOMCached($item_fetch_uri, 86400, $headers, $opt)) {

					//Retrieve data from page contents
					$item_title = str_replace(' (Torrent) - AniDex ', '', $item_html->find('title', 0)->plaintext);
					$item_desc = $item_html->find('div.panel-body', 0);
					$item_author = trim($item_html->find('span.fa-user', 0)->parent()->plaintext);
					$item_date = strtotime(trim($item_html->find('span.fa-clock', 0)->parent()->plaintext));
					$item_image = $this->getURI() . 'images/user_logos/default.png';

					//Check for description-less torrent andn optionally extract image
					$desc_title_found = false;
					foreach ($item_html->find('h3.panel-title') as $h3) {
						if (strpos($h3, 'Description') !== false) {
							$desc_title_found = true;
							break;
						}
					}
					if ($desc_title_found) {
						//Retrieve image for thumbnail or generic logo fallback
						foreach ($item_desc->find('img') as $img) {
							if (strpos($img->src, 'prez') === false) {
								$item_image = $img->src;
								break;
							}
						}
						$item_desc = trim($item_desc->innertext);
					} else {
						$item_desc = '<em>No description.</em>';
					}

					//Build and add final item
					$item = array();
					$item['uri'] = $item_browse_uri;
					$item['title'] = $item_title;
					$item['author'] = $item_author;
					$item['timestamp'] = $item_date;
					$item['enclosures'] = array($item_image);
					$item['content'] = $item_desc;
					$this->items[] = $item;
				}
			}
			$element = null;
		}
		$results = null;
	}
}