<?php
/*
=====================================================
  DataLife Engine - by SoftNews Media Group  
-----------------------------------------------------
  http://dle-news.ru/
-----------------------------------------------------
  Copyright (c) 2004,2011 SoftNews Media Group
=====================================================
  Данный код защищен авторскими правами
=====================================================
  Файл: tagscloud.php
-----------------------------------------------------
  Назначение: Формирование облака тегов
=====================================================
*/

if(!defined('DATALIFEENGINE'))
{
   die("Hacking attempt!");
}

$is_change = false;

if ($config['allow_cache'] != "yes") { $config['allow_cache'] = "yes"; $is_change = true;}

$tpl->result['tags_cloud'] = dle_cache("tagscloud", $config['skin']);

if ($tpl->result['tags_cloud'] === false) {

  $counts = array();
  $tags = array();
  $list = array();
  $sizes = array( "clouds_xsmall", "clouds_small", "clouds_medium", "clouds_large", "clouds_xlarge" );
  $min   = 1;
  $max   = 1;
  $range = 1;

  $db->query("SELECT SQL_CALC_FOUND_ROWS tag, COUNT(*) AS count FROM " . PREFIX . "_tags GROUP BY tag ORDER BY count DESC LIMIT 0,40");

  while($row = $db->get_row()){

   $tags[$row['tag']] = $row['count'];
   $counts[] = $row['count'];

  }
  $db->free();

  if (count($counts)) {
   $min   = min($counts);
   $max   = max($counts);
   $range = ($max-$min);
  }

  if (!$range) $range = 1;

  foreach ($tags as $tag => $value) {

   $list[$tag]['tag']   = $tag;
   $list[$tag]['size']  = $sizes[sprintf("%d", ($value-$min)/$range*4 )];
   $list[$tag]['count']  = $value;
  }

  usort ($list, "compare_tags");
  $tags = array();  

  foreach ($list as $value) {

   if (trim($value['tag']) != "" ) {

    if ($config['allow_alt_url'] == "yes")
           $tags[] = "<a href=\"".$config['http_home_url']."tags/".urlencode($value['tag'])."/\" class=\"{$value['size']}\" title=\"".$lang['tags_count']." ".$value['count']."\">".$value['tag']."</a>";
    else
     $tags[] = "<a href=\"$PHP_SELF?do=tags&tag=".urlencode($value['tag'])."\" class=\"{$value['size']}\" title=\"".$lang['tags_count']." ".$value['count']."\">".$value['tag']."</a>";

   }

  }

  $tpl->result['tags_cloud'] = implode(", ", $tags);

  $row = $db->super_query("SELECT FOUND_ROWS() as count");

  if ($row['count'] >= 40) {

   if ($config['allow_alt_url'] == "yes")
          $tpl->result['tags_cloud'] .= "<br /><br /><a href=\"".$config['http_home_url']."tags/\">".$lang['all_tags']."</a>";
   else
    $tpl->result['tags_cloud'] .= "<br /><br /><a href=\"$PHP_SELF?do=tags\">".$lang['all_tags']."</a>";

  }

  create_cache ("tagscloud", $tpl->result['tags_cloud'], $config['skin']);
}

if ($do == "alltags") {

  $tpl->result['content'] = dle_cache("alltagscloud", $config['skin']);

  if (!$tpl->result['content']) {

   $tpl->load_template('tagscloud.tpl');

   $counts = array();
   $tags = array();
   $list = array();
   $sizes = array( "clouds_xsmall", "clouds_small", "clouds_medium", "clouds_large", "clouds_xlarge" );
   $min   = 1;
   $max   = 1;
   $range = 1;

   $db->query("SELECT tag, COUNT(*) AS count FROM " . PREFIX . "_tags GROUP BY tag");

   while($row = $db->get_row()){

    $tags[$row['tag']] = $row['count'];
    $counts[] = $row['count'];

   }
   $db->free();

   if (count($counts)) {
    $min   = min($counts);
    $max   = max($counts);
    $range = ($max-$min);
   }

   if (!$range) $range = 1;

   foreach ($tags as $tag => $value) {

    $list[$tag]['tag']   = $tag;
    $list[$tag]['size']  = $sizes[sprintf("%d", ($value-$min)/$range*4 )];
    $list[$tag]['count']  = $value;

   }

   usort ($list, "compare_tags");
   $tags = array();  

   foreach ($list as $value) {

    if (trim($value['tag']) != "" ) {

     if ($config['allow_alt_url'] == "yes")
            $tags[] = "<a href=\"".$config['http_home_url']."tags/".urlencode($value['tag'])."/\" class=\"{$value['size']}\" title=\"".$lang['tags_count']." ".$value['count']."\">".$value['tag']."</a>";
     else
      $tags[] = "<a href=\"$PHP_SELF?do=tags&tag=".urlencode($value['tag'])."\" class=\"{$value['size']}\" title=\"".$lang['tags_count']." ".$value['count']."\">".$value['tag']."</a>";
    }

   }

   $tags = implode(", ", $tags);

   $tpl->set('{tags}', $tags);
   $tpl->compile('content');
   $tpl->clear();

   create_cache ("alltagscloud", $tpl->result['content'], $config['skin']);

  }

}

if ($is_change) $config['allow_cache'] = false;

?>