<?php

/*

 * Snapr

 * Version 0.1 beta 1

 * Copyright (C) 2007 Dan Fuhry

 *

 * 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.

 */

//

// Search results hook

//

$plugins->attachHook('search_results', 'if ( !isset($offset) ) $offset =& $start; gal_searcher($q, $offset);');

$plugins->attachHook('search_global_inner', 'snapr_search_new_api($query, $query_phrase, $scores, $page_data, $case_sensitive, $word_list);');

$plugins->attachHook('compile_template', '

  // CSS for gallery browser

  $template->add_header(\'<link rel="stylesheet" href="' . scriptPath . '/plugins/gallery/browser.css" type="text/css" />\');

  $template->add_header(\'<link rel="stylesheet" href="' . scriptPath . '/plugins/gallery/dropdown.css" type="text/css" />\');

  ');

function gal_searcher($q, $offset)

{

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

  if ( defined('SNAPR_SEARCH_USING_NEW_API') || version_compare(enano_version(true), '1.0.2', '>=') )

    return false;

  $fulltext_col = 'MATCH(img_title, img_desc) AGAINST (\'' . $db->escape($q) . '\' IN BOOLEAN MODE)';

  $sql = "SELECT img_id, img_title, img_desc, is_folder, $fulltext_col AS score, CHAR_LENGTH(img_desc) AS length FROM ".table_prefix."gallery

              WHERE $fulltext_col > 0

                AND ( ( is_folder=1 AND folder_parent IS NULL ) OR is_folder!=1 )

              ORDER BY is_folder DESC, score DESC, img_title ASC;";

  if ( !$db->sql_unbuffered_query($sql) )

  {

    echo $db->get_error();

    return false;

  }

  echo "<h3>Image results</h3>";

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

  {

    echo '<ul class="snapr-gallery">';

    $renderer = new SnaprFormatter();

    $fullpage = $paths->fullpage;

    $paths->fullpage = $paths->nslist['Special'] . 'Gallery';

    do

    {

      echo $renderer->render(false, $row, false);

    }

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

    $paths->fullpage = $fullpage;

    echo '</ul><span class="menuclear"></span>';

  }

  else

  {

    echo '<p>No image results.</p>';

  }

}

function snapr_search_new_api(&$query, &$query_phrase, &$scores, &$page_data, &$case_sensitive, &$word_list)

{

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

  if ( !defined('SNAPR_SEARCH_USING_NEW_API') )

    define('SNAPR_SEARCH_USING_NEW_API', 1);

  // Let's do this all in one query

  $terms = array(

      'any' => array_merge($query['any'], $query_phrase['any']),

      'req' => array_merge($query['req'], $query_phrase['req']),

      'not' => $query['not']

    );

  $where = array('any' => array(), 'req' => array(), 'not' => array());

  $where_any =& $where['any'];

  $where_req =& $where['req'];

  $where_not =& $where['not'];

  $title_col = ( $case_sensitive ) ? 'img_title' : 'lcase(img_title)';

  $desc_col = ( $case_sensitive ) ? 'img_desc' : 'lcase(img_desc)';

  foreach ( $terms['any'] as $term )

  {

    $term = escape_string_like($term);

    if ( !$case_sensitive )

      $term = strtolower($term);

    $where_any[] = "( $title_col LIKE '%{$term}%' OR $desc_col LIKE '%{$term}%' )";

  }

  foreach ( $terms['req'] as $term )

  {

    $term = escape_string_like($term);

    if ( !$case_sensitive )

      $term = strtolower($term);

    $where_req[] = "( $title_col LIKE '%{$term}%' OR $desc_col LIKE '%{$term}%' )";

  }

  foreach ( $terms['not'] as $term )

  {

    $term = escape_string_like($term);

    if ( !$case_sensitive )

      $term = strtolower($term);

    $where_not[] = "$title_col NOT LIKE '%{$term}%' AND $desc_col NOT LIKE '%{$term}%'";

  }

  if ( empty($where_any) )

    unset($where_any, $where['any']);

  if ( empty($where_req) )

    unset($where_req, $where['req']);

  if ( empty($where_not) )

    unset($where_not, $where['not']);

  $where_any = '(' . implode(' OR ', $where_any) . '' . ( isset($where['req']) || isset($where['not']) ? ' OR 1 = 1' : '' ) . ')';

  if ( isset($where_req) )

    $where_req = implode(' AND ', $where_req);

  if ( isset($where_not) )

  $where_not = implode( 'AND ', $where_not);

  $where = implode(' AND ', $where);

  $sql = "SELECT img_id, img_title, img_desc FROM " . table_prefix . "gallery WHERE ( $where ) AND is_folder = 0;";

  if ( !($q = $db->sql_unbuffered_query($sql)) )

  {

    $db->_die('Error is in auto-generated SQL query in the Snapr plugin search module');

  }

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

  {

    do

    {

      $idstring = 'ns=Gallery;pid=' . $row['img_id'];

      foreach ( $word_list as $term )

      {

        if ( $case_sensitive )

        {

          if ( strstr($row['img_title'], $term) || strstr($row['img_desc'], $term) )

          {

            ( isset($scores[$idstring]) ) ? $scores[$idstring]++ : $scores[$idstring] = 1;

          }

        }

        else

        {

          if ( strstr(strtolower($row['img_title']), strtolower($term)) || strstr(strtolower($row['img_desc']), strtolower($term)) )

          {

            ( isset($scores[$idstring]) ) ? $scores[$idstring]++ : $scores[$idstring] = 1;

          }

        }

      }

      // Generate text...

      $text = highlight_and_clip_search_result(htmlspecialchars($row['img_desc']), $word_list);

      $preview_and_text = '

        <table border="0" width="100%" cellspacing="0" cellpadding="0">

          <tr>

            <td valign="top">

              ' . $text . '

            </td>

            <td valign="top" style="text-align: right; width: 80px; padding-left: 10px;">

              <a href="' . makeUrlNS('Gallery', $row['img_id']) . '"><img alt="[thumbnail]" src="' . makeUrlNS('Special', "GalleryFetcher/thumb/{$row['img_id']}") . '" /></a>

            </td>

          </tr>

        </table>

      ';

      // Inject result

      if ( isset($scores[$idstring]) )

      {

        // echo('adding image "' . $row['img_title'] . '" to results<br />');

        $page_data[$idstring] = array(

          'page_name' => highlight_search_result(htmlspecialchars($row['img_title']), $word_list),

          'page_text' => $preview_and_text,

          'score' => $scores[$idstring],

          'page_note' => '[Gallery image]',

          'page_id' => strval($row['img_id']),

          'namespace' => 'Gallery',

          'page_length' => strlen($row['img_desc']),

        );

      }

    }

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

  }

}

?>