<?php
class EuronewsBridge extends BridgeAbstract
{
	const MAINTAINER = 'sqrtminusone';
	const NAME = 'Euronews Bridge';
	const URI = 'https://www.euronews.com/';
	const CACHE_TIMEOUT = 600; // 10 minutes
	const DESCRIPTION = 'Return articles from the "Just In" feed of Euronews.';

	const PARAMETERS = array(
		'' => array(
			'lang' => array(
				'name' => 'Language',
				'type' => 'list',
				'defaultValue' => 'euronews.com',
				'values' => array(
					'English' => 'euronews.com',
					'French' => 'fr.euronews.com',
					'German' => 'de.euronews.com',
					'Italian' => 'it.euronews.com',
					'Spanish' => 'es.euronews.com',
					'Portuguese' => 'pt.euronews.com',
					'Russian' => 'ru.euronews.com',
					'Turkish' => 'tr.euronews.com',
					'Greek' => 'gr.euronews.com',
					'Hungarian' => 'hu.euronews.com',
					'Persian' => 'per.euronews.com',
					'Arabic' => 'arabic.euronews.com',
					/* These versions don't have timeline.json */
					// 'Albanian' => 'euronews.al',
					// 'Romanian' => 'euronews.ro',
					// 'Georigian' => 'euronewsgeorgia.com',
					// 'Bulgarian' => 'euronewsbulgaria.com'
					// 'Serbian' => 'euronews.rs'
				)
			),
			'limit' => array(
				'name' => 'Limit of items per feed',
				'required' => true,
				'type' => 'number',
				'defaultValue' => 10,
				'title' => 'Maximum number of returned feed items. Maximum 50, default 10'
			),
		)
	);

	public function collectData()
	{
		$limit = $this->getInput('limit');
		$root_url = 'https://' . $this->getInput('lang');
		$url = $root_url . '/api/timeline.json?limit=' . $limit;
		$json = getContents($url);
		$data = json_decode($json, true);

		foreach ($data as $datum) {
			$datum_uri = $root_url . $datum['fullUrl'];
			$url_datum = $this->getItemContent($datum_uri);
			$categories = array();
			if (array_key_exists('program', $datum)) {
				if (array_key_exists('title', $datum['program'])) {
					$categories[] = $datum['program']['title'];
				}
			}
			if (array_key_exists('themes', $datum)) {
				foreach ($datum['themes'] as $theme) {
					$categories[] = $theme['title'];
				}
			}
			$item = array(
				'uri' => $datum_uri,
				'title' => $datum['title'],
				'uid' => strval($datum['id']),
				'timestamp' => $datum['publishedAt'],
				'content' => $url_datum['content'],
				'author' => $url_datum['author'],
				'enclosures' => $url_datum['enclosures'],
				'categories' => array_unique($categories)
			);
			$this->items[] = $item;
		}
	}

	private function getItemContent($url)
	{
		try {
			$html = getSimpleHTMLDOMCached($url);
		} catch (Exception $e) {
			// Every once in a while it fails with too many redirects
			return array('author' => null, 'content' => null, 'enclosures' => null);
		}
		$data = $html->find('script[type="application/ld+json"]', 0)->innertext;
		$json = json_decode($data, true);
		$author = 'Euronews';
		$content = '';
		$enclosures = array();
		if (array_key_exists('@graph', $json)) {
			foreach ($json['@graph'] as $item) {
				if ($item['@type'] == 'NewsArticle') {
					if (array_key_exists('author', $item)) {
						$author = $item['author']['name'];
					}
					if (array_key_exists('image', $item)) {
						$content .= '<figure>';
						$content .= '<img src="' . $item['image']['url'] . '">';
						$content .= '<figcaption>' . $item['image']['caption'] . '</figcaption>';
						$content .= '</figure><br>';
					}
					if (array_key_exists('video', $item)) {
						$enclosures[] = $item['video']['contentUrl'];
					}
				}
			}
		}

		// Normal article
		$article_content = $html->find('.c-article-content', 0);
		if ($article_content) {
			// Usually the .c-article-content is the root of the
			// content, but once in a blue moon the root is the second
			// div
			if ((count($article_content->children()) == 2)
				&& ($article_content->children(1)->tag == 'div')
			) {
				$article_content = $article_content->children(1);
			}
			// The content is interspersed with links and stuff, so we
			// iterate over the children
			foreach ($article_content->children() as $element) {
				if ($element->tag == 'p') {
					$scribble_live = $element->find('#scribblelive-items', 0);
					if (is_null($scribble_live)) {
						// A normal paragraph
						$content .= '<p>' . $element->innertext . '</p>';
					} else {
						// LIVE mode
						foreach ($scribble_live->children() as $child) {
							if ($child->tag == 'div') {
								$content .= '<div>' . $child->innertext . '</div>';
							}
						}
					}
				} elseif (preg_match('/h[1-6]/', $element->tag)) {
					// Header
					$content .= '<h' . $element->tag[1] . '>' . $element->innertext . '</h' . $element->tag[1] . '>';
				} elseif ($element->tag == 'div') {
					if (preg_match('/.*widget--type-image.*/', $element->class)) {
						// Image
						$content .= '<figure>';
						$content .= '<img src="' . $element->find('img', 0)->src . '">';
						$caption = $element->find('figcaption', 0);
						if ($caption) {
							$content .= '<figcaption>' . $element->plaintext . '</figcaption>';
						}
						$content .= '</figure><br>';
					} elseif (preg_match('/.*widget--type-quotation.*/', $element->class)) {
						// Quotation
						$quote = $element->find('.widget__quoteText', 0);
						$author = $element->find('.widget__author', 0);
						$content .= '<figure>';
						$content .= '<blockquote>' . $quote->plaintext . '</blockquote>';
						if ($author) {
							$content .= '<figcaption>' . $author->plaintext . '</figcaption>';
						}
						$content .= '</figure><br>';
					}
				}
			}
		}

		// Video article
		if (is_null($article_content)) {
			$image = $html->find('.c-article-media__img', 0);
			if ($image) {
				$content .= '<figure>';
				$content .= '<img src="' . $image->src . '">';
				$content .= '</figure><br>';
			}

			$description = $html->find('.m-object__description', 0);
			if ($description) {
				// In some editions the description is a link to the
				// current page
				$content .= '<div>' . $description->plaintext . '</div>';
			}

			// Euronews usually hosts videos on dailymotion...
			$player_div = $html->find('.dmPlayer', 0);
			if ($player_div) {
				$video_id = $player_div->getAttribute('data-video-id');
				$video_url = 'https://www.dailymotion.com/video/' . $video_id;
				$content .= '<a href="' . $video_url . '">' . $video_url . '</a>';
			}

			// ...or on YouTube
			$player_div = $html->find('.js-player-pfp', 0);
			if ($player_div) {
				$video_id = $player_div->getAttribute('data-video-id');
				$video_url = 'https://www.youtube.com/watch?v=' . $video_id;
				$content .= '<a href="' . $video_url . '">' . $video_url . '</a>';
			}
		}

		return array(
			'author' => $author,
			'content' => $content,
			'enclosures' => $enclosures
		);
	}
}
