<?php

/**
*
* @package - Board3portal
* @version $Id$
* @copyright (c) kevin / saint ( www.board3.de/ ), (c) Ice, (c) nickvergessen ( www.flying-bits.org/ ), (c) redbull254 ( www.digitalfotografie-foren.de ), (c) Christian_N ( www.phpbb-projekt.de )
* @based on: phpBB3 Portal by Sevdin Filiz, www.phpbb3portal.com
* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
*
*/

if (!defined('IN_PHPBB'))
{
   exit;
}

if (!defined('IN_PORTAL'))
{
   exit;
}

$words_array = array();

// Get words and number of those words
$sql = 'SELECT l.word_text, COUNT(*) AS word_count  
	FROM ' . SEARCH_WORDLIST_TABLE . ' AS l, ' . SEARCH_WORDMATCH_TABLE . ' AS m
	WHERE m.word_id = l.word_id 
	GROUP BY m.word_id 
	ORDER BY word_count DESC';
$result = $db->sql_query_limit($sql, $portal_config['portal_wordgraph_max_words']);

while ($row = $db->sql_fetchrow($result))
{
	$word = strtolower($row['word_text']);
	$words_array[$word] = $row['word_count'];
}
$db->sql_freeresult($result);

$minimum = 1000000;
$maximum = -1000000;

foreach ( array_keys($words_array) as $word )
{
	if ( $words_array[$word] > $maximum )
	{
		$maximum = $words_array[$word];
	}
	
	if ( $words_array[$word] < $minimum )
	{
		$minimum = $words_array[$word];
	}
}

// ratio
$ratio = $portal_config['portal_wordgraph_ratio'] / ( $maximum - $minimum +1);

$words = array_keys($words_array);
sort($words);

foreach ( $words as $word )
{
	$template->assign_block_vars('wordgraph', array(
		'WORD'				=> ($portal_config['portal_wordgraph_word_counts']) ? $word . '(' . $words_array[$word] . ')' : $word,
		'WORD_FONT_SIZE'	=> (int) ( 9 + ( $words_array[$word] * $ratio ) ),
		'WORD_SEARCH_URL'	=> append_sid("{$phpbb_root_path}search.$phpEx", 'keywords=' . urlencode($word)),
	));
}

$template->assign_vars(array(
	'L_WORDGRAPH'			=> $user->lang['WORDGRAPH'],
));
if (!isset($template->filename['wordgraph_block']))
{
	$template->set_filenames(array(
		'wordgraph_block'	=> 'portal/block/wordgraph.html')
	);
}

$block_temp = $template->assign_display('wordgraph_block');

$template->assign_block_vars('portal_column_'.$block_pos, array(
	'BLOCK_DATA'	=> $block_temp)
);
unset( $block_temp );

?>