<?php

/*

 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between

 * Copyright (C) 2006-2007 Dan Fuhry

 * stats.php - handles statistics for pages (disablable in the admin CP)

 *

 *   ***** UNFINISHED ***** 

 *

 * This program is Free Software; you can redistribute 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 details.

 */

function doStats( $page_id = false, $namespace = false )

{

  global $db, $session, $paths, $template, $plugins; // Common objects

  if(getConfig('log_hits') == '1')

  {

    if(!$page_id || !$namespace)

    {

      $page_id = $paths->cpage['urlname_nons'];

      $namespace = $paths->namespace;

    }

    if($namespace == 'Special' || $namespace == 'Admin') return false;

    static $stats_done = false;

    static $stats_data = Array();

    if(!$stats_done)

    {

      $q = $db->sql_query('INSERT INTO '.table_prefix.'hits (username,time,page_id,namespace) VALUES(\''.$db->escape($session->username).'\', '.time().', \''.$db->escape($page_id).'\', \''.$db->escape($namespace).'\')');

      if(!$q)

      {

        echo $db->get_error();

        return false;

      }

      $db->free_result();

      $stats_done = true;

      return true;

    }

  }

}

/**

 * Fetch a list of the most-viewed pages

 * @param int the number of pages to return, send -1 to get all pages (suicide for large sites)

 * @return array key names are a string set to the page ID/namespace, and values are an int with the number of hits

 */

function stats_top_pages($num = 5)

{

  global $db, $session, $paths, $template, $plugins; // Common objects

  if(!is_int($num)) return false;

  $q = $db->sql_query('SELECT page_id,namespace FROM '.table_prefix.'hits ORDER BY page_id ASC, namespace ASC;');

  if(!$q)

  {

    echo $db->get_error();

    return false;

  }

  $counter = Array();

  while ( $row = $db->fetchrow() )

  {

    $kname = $paths->nslist[$row['namespace']] . $row['page_id'];

    if(isset($counter[$kname])) $counter[$kname]++;

    else $counter[$kname] = 1;

  }

  $db->free_result();

  // Pure magic! At least I don't have to do the work...

  arsort($counter);

  // Can't use array_slice here because key names are only preserved in PHP5

  $k = array_keys($counter);

  $final = Array();

  if(sizeof($counter) < $num || $num == -1) $num = sizeof($counter);

  for ( $i = 0; $i < $num; $i++ )

  {

    $final[$k[$i]] = $counter[$k[$i]];

  }

  unset($counter, $k, $row);

  return $final;

}

?>