<?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.

 */

##

## BROWSER INTERFACE

##

$plugins->attachHook('session_started', 'register_special_page("Gallery", "Image gallery");');

/**

 * Class to handle building the HTML for gallery pages. Called by the pagination function.

 * @package Enano

 * @subpackage Snapr

 * @access private

 */

class SnaprFormatter

{

  /**

   * Main render method, called from pagination function

   * @access private

   */

  function render($column_crap, $row, $row_crap = false)

  {

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

    $out = '<li class="snapr-icon">';

    $title_safe = $row['img_title'];

    $title_safe = htmlspecialchars($title_safe);

    if ( $row['is_folder'] == 1 )

    {

      // It's a folder, show the icon

      $f_url_particle = sanitize_page_id($row['img_title']);

      $f_url_particle = htmlspecialchars($f_url_particle);

      $image_link = makeUrl( $paths->fullpage . '/' . $f_url_particle );

      $image_url = scriptPath . '/plugins/gallery/folder.png';

    }

    else

    {

      // It's an image, show a thumbnail

      $image_link = makeUrlNS('Gallery', $row['img_id']);

      $image_url  = makeUrlNS('Special', 'GalleryFetcher/thumb/' . $row['img_id']);

    }

    if ( isset($row['score']) )

    {

      $row['score'] = number_format($row['score'], 2);

    }

    $image_url_js = addslashes($image_link);

    $jsclick = ( $session->user_level < USER_LEVEL_ADMIN ) ? ' onclick="window.location=\'' . $image_url_js . '\'"' : '';

    $out .= '<div class="gallery_icon"' . $jsclick . '>';

    $out .= '<a class="snapr-imagelink" href="' . $image_link . '"><img alt="&lt;Thumbnail&gt;" class="gallery_thumb" src="' . $image_url . '" /></a>';

    if ( $session->user_level < USER_LEVEL_ADMIN )

    {

      $out .= '<span class="snapr-icon-label">' . $title_safe . ( isset($row['score']) ? "<br /><small>Relevance: {$row['score']}</small>" : '' ) . '</span>';

    }

    else if ( $session->user_level >= USER_LEVEL_ADMIN )

    {

      $out .= '<div class="menu_nojs snapr-icon-label" style="text-align: center;"><a href="#" onclick="return false;" style="width: 74px;">' . $title_safe . ( isset($row['score']) ? "<br /><small>Relevance: {$row['score']}</small>" : '' ) . '</a>';

      $url_delete = makeUrlNS('Special', 'GalleryUpload', 'rm=' . $row['img_id'], true);

      $url_edit   = makeUrlNS('Special', 'GalleryUpload', 'edit_img=' . $row['img_id'], true);

      // Tools menu

      $out .= '<ul style="text-align: left;">';

      $out .= '<li><a href="' . $url_delete . '">Delete ' . ( $row['is_folder'] == 1 ? 'this folder and all contents' : 'this image' ) . '</a></li>';

      $out .= '<li><a href="' . $url_edit   . '">Rename, move, or edit description</a></li>';

      $out .= '</ul>';

      $out .= '</div>';

      $out .= '<span class="menuclear"></span>';

    }

    $out .= '  </div>';

    $out .= '</li>';

    return $out;

  }

}

function page_Special_Gallery()

{

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

  // die('<pre>' . print_r(gallery_folder_hierarchy(), true) . '</pre>');

  $sort_column = ( isset($_GET['sort'])  && in_array($_GET['sort'],  array('img_title', 'img_time_upload', 'img_time_mod')) ) ? $_GET['sort'] : 'img_title';

  $sort_order  = ( isset($_GET['order']) && in_array($_GET['order'], array('ASC', 'DESC')) ) ? $_GET['order'] : 'ASC';

  // Determine number of pictures per page

  $template->load_theme();

  $where = 'WHERE folder_parent IS NULL ' . "\n  ORDER BY is_folder DESC, $sort_column $sort_order, img_title ASC";

  $parms = $paths->getAllParams();

  $sql = "SELECT img_id, img_title, is_folder, 'NULL' AS folder_id FROM ".table_prefix."gallery $where;";

  // Breadcrumb browser

  $breadcrumbs = array();

  $breadcrumbs[] = '<a href="' . makeUrlNS('Special', 'Gallery') . '">Gallery index</a>';

  $breadcrumb_urlcache = '';

  // CSS for gallery browser

  // Moved to search.php

  //$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" />');

  $header = $template->getHeader();

  if ( !empty($parms) )

  {

    $parms = dirtify_page_id($parms);

    if ( strstr($parms, '/') )

    {

      $folders = explode('/', $parms);

    }

    else

    {

      $folders = array(0 => $parms);

    }

    foreach ( $folders as $i => $_crap )

    {

      $folder =& $folders[$i];

      $f_url = sanitize_page_id($folder);

      $breadcrumb_urlcache .= '/' . $f_url;

      $breadcrumb_url = makeUrlNS('Special', 'Gallery' . $breadcrumb_urlcache);

      $folder = str_replace('_', ' ', $folder);

      if ( $i == ( count($folders) - 1 ) )

      {

        $breadcrumbs[] = htmlspecialchars($folder);

      }

      else

      {

        $breadcrumbs[] = '<a href="' . $breadcrumb_url . '">' . htmlspecialchars($folder) . '</a>';

      }

    }

    unset($folder);

    $folders = array_reverse($folders);

    // This is one of the best MySQL tricks on the market. We're going to reverse-travel a folder path using LEFT JOIN and the incredible power of metacoded SQL

    $sql = 'SELECT gm.img_id, gm.img_title, gm.is_folder, g0.img_title AS folder_name, g0.img_id AS folder_id FROM '.table_prefix.'gallery AS gm' . "\n  " . 'LEFT JOIN '.table_prefix.'gallery AS g0' . "\n    " . 'ON ( gm.folder_parent = g0.img_id )';

    $where = "\n  " . 'WHERE g0.img_title=\'' . $db->escape($folders[0]) . '\'';

    foreach ( $folders as $i => $folder )

    {

      if ( $i == 0 )

        continue;

      $i_dec = $i - 1;

      $folder = $db->escape($folder);

      $sql .= "\n  LEFT JOIN ".table_prefix."gallery AS g{$i}\n    ON ( g{$i}.img_id=g{$i_dec}.folder_parent AND g{$i}.img_title='$folder' )";

      $where .= "\n    ".'AND g'.$i.'.img_id IS NOT NULL';

    }

    $where .= "\n    AND g{$i}.folder_parent IS NULL";

    $sql .= $where . "\n  ORDER BY is_folder DESC, gm.$sort_column $sort_order, gm.img_title ASC" . ';';

  }

  $img_query = $db->sql_query($sql);

  if ( !$img_query )

    $db->_die('The folder ID could not be selected.');

  if ( $db->numrows() < 1 )

  {

    // Nothing in this folder, for one of two reasons:

    //   1) The folder doesn't exist

    //   2) The folder exists but doesn't have any images in it

    if ( sizeof($folders) < 1 )

    {

      // Nothing in the root folder

      $first_row['folder_id'] = 'NULL';

      if ( $session->user_level >= USER_LEVEL_ADMIN && isset($_POST['create_folder']) && isset($first_row['folder_id']) )

      {

        if ( empty($_POST['create_folder']) )

        {

          $f_errors[] = 'Please enter a folder name.';

        }

        if ( $_POST['create_folder'] == '_id' )

        {

          $f_errors[] = 'The name "_id" is reserved for internal functions and cannot be used on any image or folder.';

        }

        if ( count($f_errors) < 1 )

        {

          $q = $db->sql_query('INSERT INTO '.table_prefix.'gallery(img_title, is_folder, folder_parent) VALUES(\'' . $db->escape($_POST['create_folder']) . '\', 1, ' . $first_row['folder_id'] . ');');

          if ( !$q )

            $db->_die();

          redirect(makeUrl($paths->fullpage), 'Folder created', 'The folder "' . htmlspecialchars($_POST['create_folder']) . '" has been created. Redirecting to last viewed folder...', 2);

        }

      }

      $html = '';

      if ( $session->user_level >= USER_LEVEL_ADMIN )

      {

        $html .= '<p><a href="' . makeUrlNS('Special', 'GalleryUpload') . '">Upload an image</a></p>';

        $html .= '<div class="select-outer">Create new folder';

        $html .= '<div class="select-inner" style="padding-top: 4px;">';

        $html .= '<form action="' . makeUrl($paths->fullpage) . '" method="post">';

        $html .= '<input type="text" name="create_folder" size="30" /> <input type="submit" value="Create" />';

        $html .= '</form></div>';

        $html .= '</div><div class="select-pad">&nbsp;</div><br />';

      }

      die_friendly('No images', '<p>No images have been uploaded to the gallery yet.</p>' . $html);

    }

    /*

    $folders_old = $folders;

    $folders = array(

      0 => $folders_old[0]

      );

    $x = $folders_old;

    unset($x[0]);

    $folders = array_merge($folders, $x);

    unset($x);

    */

    // die('<pre>' . print_r($folders, true) . '</pre>');

    // This next query will try to determine if the folder itself exists

    $sql = 'SELECT g0.img_id, g0.img_title FROM '.table_prefix.'gallery AS g0';

    $where = "\n  " . 'WHERE g0.img_title=\'' . $db->escape($folders[0]) . '\'';

    foreach ( $folders as $i => $folder )

    {

      if ( $i == 0 )

        continue;

      $i_dec = $i - 1;

      $folder = $db->escape($folder);

      $sql .= "\n  LEFT JOIN ".table_prefix."gallery AS g{$i}\n    ON ( g{$i}.img_id=g{$i_dec}.folder_parent AND g{$i}.img_title='$folder' )";

      $where .= "\n    ".'AND g'.$i.'.img_id IS NOT NULL';

    }

    $where .= "\n    AND g{$i}.folder_parent IS NULL";

    $where .= "\n    AND g0.is_folder=1";

    $sql .= $where . ';';

    $nameq = $db->sql_query($sql);

    if ( !$nameq )

      $db->_die();

    if ( $db->numrows($nameq) < 1 )

    {

      die_friendly('Folder not found', '<p>The folder you requested doesn\'t exist. Please check the URL and try again, or return to the <a href="' . makeUrlNS('Special', 'Gallery') . '">gallery index</a>.</p>');

    }

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

    // Generate title

    $title = dirtify_page_id($row['img_title']);

    $title = str_replace('_', ' ', $title);

    $title = htmlspecialchars($title);

    $template->tpl_strings['PAGE_NAME'] = $title;

    $first_row = $row;

    if ( $db->numrows($img_query) > 0 )

      $db->sql_data_seek(0, $img_query);

    /* $folders = $folders_old; */

  }

  else if ( !empty($parms) )

  {

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

    $first_row = $row;

    // Generate title

    $title = htmlspecialchars($row['folder_name']);

    $template->tpl_strings['PAGE_NAME'] = $title;

    $db->sql_data_seek(0, $img_query);

  }

  else

  {

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

    $first_row = $row;

    $template->tpl_strings['PAGE_NAME'] = 'Image Gallery';

    $breadcrumbs = array('<b>Gallery index</b>');

    $db->sql_data_seek(0, $img_query);

  }

  $f_errors = array();

  if ( $session->user_level >= USER_LEVEL_ADMIN && isset($_POST['create_folder']) )

  {

    if ( !isset($first_row['folder_id']) )

    {

      //die('FALLING<pre>' . print_r($first_row, true) . '</pre>');

      $first_row['folder_id'] =& $first_row['img_id'];

    }

    if ( !isset($first_row['folder_id']) )

    {

      $f_errors[] = 'Internal error getting parent folder ID';

    }

    if ( empty($_POST['create_folder']) )

    {

      $f_errors[] = 'Please enter a folder name.';

    }

    if ( $_POST['create_folder'] == '_id' )

    {

      $f_errors[] = 'The name "_id" is reserved for internal functions and cannot be used on any image or folder.';

    }

    if ( count($f_errors) < 1 )

    {

      $q = $db->sql_query('INSERT INTO '.table_prefix.'gallery(img_title, is_folder, folder_parent) VALUES(\'' . $db->escape($_POST['create_folder']) . '\', 1, ' . $first_row['folder_id'] . ');');

      if ( !$q )

        $db->_die();

      redirect(makeUrl($paths->fullpage), 'Folder created', 'The folder "' . htmlspecialchars($_POST['create_folder']) . '" has been created. Redirecting to last viewed folder...', 2);

    }

  }

  echo $header;

  if ( count($f_errors) > 0 )

  {

    echo '<div class="error-box">Error creating folder:<ul><li>' . implode('</li><li>', $f_errors) . '</li></ul></div>';

  }

  // From here, this breadcrumb stuff is a piece of... sourdough French bread :-) *smacks lips*

  echo '<div class="breadcrumbs" style="padding: 4px; margin-bottom: 7px;">';

  // Upload image link for admins

  if ( $session->user_level >= USER_LEVEL_ADMIN )

  {

    echo '<div style="float: right; font-size: smaller;">';

    echo '<a href="' . makeUrlNS('Special', 'GalleryUpload') . '">Upload new image(s)</a>';

    echo '</div>';

  }

  // The actual breadcrumbs

  echo '<small>' . implode(' &raquo; ', $breadcrumbs) . '</small>';

  echo '</div>';

  // "Edit all" link

  if ( $row = $db->fetchrow($img_query) && $session->user_level >= USER_LEVEL_ADMIN )

  {

    $img_list = array();

    $fol_list = array();

    $all_list = array();

    do

    {

      if ( $row === true && isset($first_row) )

      {

        $row = $first_row;

      }

        // die('<pre>' . var_dump($row) . $db->sql_backtrace() . '</pre>');

      if ( !$row['img_id'] )

        break;

      $all_list[] = $row['img_id'];

      if ( $row['is_folder'] == 1 )

        $fol_list[] = $row['img_id'];

      else

        $img_list[] = $row['img_id'];

    }

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

    $all_list = implode(',', $all_list);

    $fol_list = implode(',', $fol_list);

    $img_list = implode(',', $img_list);

    if ( !empty($all_list) )

    {

      echo '<div style="float: right;">

              Edit all in this folder: ';

      if ( !empty($img_list) )

      {

        $edit_link = makeUrlNS('Special', 'GalleryUpload', 'edit_img=' . $img_list, true);

        echo "<a href=\"$edit_link\">images</a> ";

      }

      if ( !empty($fol_list) )

      {

        $edit_link = makeUrlNS('Special', 'GalleryUpload', 'edit_img=' . $fol_list, true);

        echo "<a href=\"$edit_link\">folders</a> ";

      }

      if ( !empty($img_list) && !empty($fol_list) )

      {

        $edit_link = makeUrlNS('Special', 'GalleryUpload', 'edit_img=' . $all_list, true);

        echo "<a href=\"$edit_link\">both</a> ";

      }

      // " Bypass stupid jEdit bug

      echo '</div>';

    }

  }

  $url_sort_name_asc  = makeUrl($paths->fullpage, 'sort=img_title&order=ASC', true);

  $url_sort_name_desc = makeUrl($paths->fullpage, 'sort=img_title&order=DESC', true);

  $url_sort_upl_asc   = makeUrl($paths->fullpage, 'sort=img_time_upload&order=ASC', true);

  $url_sort_mod_asc   = makeUrl($paths->fullpage, 'sort=img_time_mod&order=ASC', true);

  $url_sort_upl_desc  = makeUrl($paths->fullpage, 'sort=img_time_upload&order=DESC', true);

  $url_sort_mod_desc  = makeUrl($paths->fullpage, 'sort=img_time_mod&order=DESC', true);

  // "Sort by" selector (pure CSS!)

  echo '<div class="select-outer">

          <span>Sort by...</span>

          <div class="select-inner">

            <a href="' . $url_sort_name_asc  . '">Image title (A-Z) <b>(default)</b></a>

            <a href="' . $url_sort_name_desc . '">Image title (Z-A)</a>

            <a href="' . $url_sort_upl_desc  . '">Time first uploaded (newest first)</a>

            <a href="' . $url_sort_upl_asc   . '">Time first uploaded (oldest first)</a>

            <a href="' . $url_sort_mod_desc  . '">Date of last modification (newest first)</a>

            <a href="' . $url_sort_mod_asc   . '">Date of last modification (oldest first)</a>

          </div>

        </div>

        <div class="select-pad">&nbsp;</div>';

  if ( $db->numrows($img_query) > 0 )

	$db->sql_data_seek(0, $img_query);

  //

  // Main fetcher

  //

  $renderer = new SnaprFormatter();

  $callers = array(

    'img_id' => array($renderer, 'render')

    );

  $renderer->icons_per_row = 5;

  $start = 0;

  if ( isset($_GET['start']) && preg_match('/^[0-9]+$/', $_GET['start']) )

  {

    $start = intval($_GET['start']);

  }

  $per_page = 25;

  $html = paginate($img_query, '{img_id}', $db->numrows($img_query), makeUrl($paths->fullpage, 'sort=' . $sort_column . '&order=' . $sort_order . '&start=%s', false), $start, $per_page, $callers, '<ul class="snapr-gallery">', '</ul><span class="menuclear"></span>');

  if ( empty($html) )

  {

  	  echo '<h2 class="emptymessage">No images</h2>';

  }

  else

  {

	  echo $html;

  }

  if ( $session->user_level >= USER_LEVEL_ADMIN )

  {

    echo '<div class="select-outer">Create new folder';

    echo '<div class="select-inner" style="padding-top: 4px;">';

    echo '<form action="' . makeUrl($paths->fullpage) . '" method="post">';

    echo '<input type="text" name="create_folder" size="30" /> <input type="submit" value="Create" />';

    echo '</form></div>';

    echo '</div><div class="select-pad">&nbsp;</div><br />';

  }

  $template->footer();

}

?>