<?php

/**
* Helper class for parsing article formats
* @package News Show Pro GK5
* @Copyright (C) 2009-2013 Gavick.com
* @ All rights reserved
* @ Joomla! is Free Software
* @license - http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
* @version $Revision: GK5 1.3.3 $
**/

// access restriction
defined('_JEXEC') or die('Restricted access');

class NSP_GK5_Article_Format {
	static function generateLayout($config, $data) {

		/*

			Available variables:

			{TITLE} - article title
			{TEXT} - article text
			{URL} - article URL
			{IMAGE_SRC} - article image URL
			{AUTHOR_EMAIL} - article autor e-mail
			{AUTHOR_NAME} - article author name
			{AUTHOR_URL} - article author URL
			{CATEGORY} - article category name
			{CATEGORY_URL} - article category URL
			{HITS} - article hits
			{DATE} - article date (gets format from the information block settings)
			{RATING} - article rating

			K2 specific variables:

			{TAGS} - article tag lists
			{VIDEO_HTML} - HTML of the article video
			{CATEGORY_IMAGE_SRC} - article category image URL
			{AVATAR_URL} - user avatar URL

			{{extra_field_alias}} - value of the extra field with specific alias
			{{extra_field_alias_X}} - value of X-nth element in the array of the extra field data - indexing starts with 0

		*/

		//
		// Get the values
		//

		// Image
		$viewClass = 'NSP_GK5_'.$config['source_name'].'_View';
		// Basic data
		$title = NSP_GK5_Utils::cutText($data['title'], $config, 'title_limit');
		$text = NSP_GK5_Utils::cutText($data['text'], $config, 'news_limit');
		// URL
		$url = '';

		if(isset($data['url'])) {
			$url = $data['url'];
		} else {
			$url = call_user_func(array($viewClass, 'itemLink'), $data, $config);
		}
		// PHP 5.3:
		//$image_src = $viewClass::image($config, $data, true);
		$image_src = call_user_func(array($viewClass, 'image'), $config, $data, true);
		// Author data
		$author_email = $data['author_email'];
		$author_name = $data['author_username'];
		$author_url = call_user_func(array($viewClass, 'authorLink'), $data);
		// Category data
		$category = $data['catname'];
		$category_url = '';
		if(isset($data['caturl'])) {
			$category_url = $data['caturl'];
		} else {
			$category_url = call_user_func(array($viewClass, 'categoryLink'), $data);
		}

		// detect K2
		$avatar = '';
		if(isset($data['video'])) {
			$avatar = K2HelperUtilities::getAvatar($data['author_id'], $data['author_email'], $config['avatar_size']);
		}

		// Other data
		$hits = $data['hits'];
		$date = JHTML::_('date', $data['date'], $config['date_format']);
		$rating = $data['rating_count'] > 0 ? number_format($data['rating_sum'] / $data['rating_count'], 2) : 0;

		//
		// Get the layout text
		//

		if(
			(
			$config['article_format'] != '-1' &&
			is_file(JPATH_ROOT.DS.'modules'.DS.'mod_news_pro_gk5'.DS.'article_formats'.DS.$config['article_format'])
			) ||
			(
				$config['article_format'] == '-1' &&
				$config['article_format_text'] != ''
			)
		) {
			// read the format file
			$format_file = $config['article_format_text'];

			if($config['article_format'] != '-1') {
				$format_file = file_get_contents(JPATH_ROOT . DS . 'modules' . DS . 'mod_news_pro_gk5' . DS . 'article_formats' . DS . $config['article_format']);
			}
			// replace values
			$to_replace = array(
				'{TITLE}',
				'{TEXT}',
				'{URL}',
				'{IMAGE_SRC}',
				'{AUTHOR_EMAIL}',
				'{AUTHOR_NAME}',
				'{AUTHOR_URL}',
				'{CATEGORY}',
				'{CATEGORY_URL}',
				'{HITS}',
				'{DATE}',
				'{RATING}',
				'{AVATAR_URL}'
			);
			// values for the replacement
			$replacement = array(
				$title,
				$text,
				$url,
				$image_src,
				$author_email,
				$author_name,
				$author_url,
				$category,
				$category_url,
				$hits,
				$date,
				$rating,
				$avatar
			);
			// replace values in the format file
			$format_file = str_replace($to_replace, $replacement, $format_file);
			// replacements only for K2
			if(stripos($config['data_source'], 'k2_') !== FALSE) {
				// tags list value
				$tags = '';
				// if tags exists
				if(isset($data['tags']) && count($data['tags']) > 0) {
					$i = 0;
					foreach($data['tags'] as $tag) {
						$link = urldecode(JRoute::_(K2HelperRoute::getTagRoute($tag)));

						if($i == 0) {
							$tags .= '<a href="' . $link . '">' . $tag . '</a>';
						} else {
							$tags .= ', <a href="' . $link . '">' . $tag . '</a>';
						}
						//
						$i++;
					}
				}
				// video HTML value
				$video_html = $data['video'];
				// category image URL value
				$category_image_src = '';
				// if the category image exists
				if($data['cat_image'] != '') {
					$category_image_src = JURI::root() . 'media/k2/categories/' . $data['cat_image'];
				}
				// replace values
				$to_replace = array(
					'{TAGS}',
					'{VIDEO_HTML}',
					'{CATEGORY_IMAGE_SRC}'
				);
				// values for the replacement
				$replacement = array(
					$tags,
					$video_html,
					$category_image_src
				);
				// replace values in the format file
				$format_file = str_replace($to_replace, $replacement, $format_file);
				// if using of the extra fields is enabled
				if($config['k2_get_extra_fields'] == 1) {
					$keywords = array_keys($data['extra_fields']);
					$to_replace = array();
					$replacement = array();
					// prepare the replacement arrays
					foreach($keywords as $keyword) {
						if(is_array($data['extra_fields'][$keyword])) {
							for($i = 0; $i < count($data['extra_fields'][$keyword]); $i++) {
								array_push($to_replace, '{{' . $keyword . '_' . $i . '}}');
								array_push($replacement, $data['extra_fields'][$keyword][$i]);
							}
						} else {
							array_push($to_replace, '{{' . $keyword . '}}');
							array_push($replacement, $data['extra_fields'][$keyword]);
						}
					}

					// replace values in the format file
					$format_file = str_replace($to_replace, $replacement, $format_file);
				}
			}
			// parse lang rules
			$matches = array();
			preg_match_all('@{{.*?}}@', $format_file, $matches);

			if(count($matches) > 0) {
				for($i = 0; $i < count($matches); $i++) {
					$phrase = $matches[$i][0];
					$phrase = JText::_(str_replace(array('{{', '}}'), '', $phrase));
					$format_file = str_replace($matches[$i][0], $phrase, $format_file);
				}
			}

			// PARSING PLUGINS
			if($config['parse_plugins'] == TRUE) {
				$format_file = JHtml::_('content.prepare', $format_file);
			}
			// CLEANING PLUGINS
			if($config['clean_plugins'] == TRUE) {
				$format_file = preg_replace("/(\{.+?\}.+?\{.+?})|(\{.+?\})/", "", $format_file);
			}

			return $format_file;
		} else {
			return '';
		}
	}
}

// EOF