<?php
/*
	Question2Answer by Gideon Greenspan and contributors
	http://www.question2answer.org/

	File: qa-include/qa-page-tags.php
	Description: Controller for popular tags page


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

	if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
		header('Location: ../');
		exit;
	}

	require_once QA_INCLUDE_DIR.'db/selects.php';
	require_once QA_INCLUDE_DIR.'app/format.php';


//	Get popular tags

	$start = qa_get_start();
	$userid = qa_get_logged_in_userid();
	$populartags = qa_db_select_with_pending(
		qa_db_popular_tags_selectspec($start, qa_opt_if_loaded('page_size_tags'))
	);

	$tagcount = qa_opt('cache_tagcount');
	$pagesize = qa_opt('page_size_tags');


//	Prepare content for theme

	$qa_content = qa_content_prepare();

	$qa_content['title'] = qa_lang_html('main/popular_tags');

	$qa_content['ranking'] = array(
		'items' => array(),
		'rows' => ceil($pagesize/qa_opt('columns_tags')),
		'type' => 'tags'
	);

	if (count($populartags)) {
		$favoritemap = qa_get_favorite_non_qs_map();

		$output = 0;
		foreach ($populartags as $word => $count) {
			$qa_content['ranking']['items'][] = array(
				'label' => qa_tag_html($word, false, @$favoritemap['tag'][qa_strtolower($word)]),
				'count' => qa_format_number($count, 0, true),
			);

			if ((++$output) >= $pagesize)
				break;
		}

	} else
		$qa_content['title'] = qa_lang_html('main/no_tags_found');

	$qa_content['page_links'] = qa_html_page_links(qa_request(), $start, $pagesize, $tagcount, qa_opt('pages_prev_next'));

	if (empty($qa_content['page_links']))
		$qa_content['suggest_next'] = qa_html_suggest_ask();


	return $qa_content;


/*
	Omit PHP closing tag to help avoid accidental output
*/