<?php
defined('BATCH_DOWNLOAD_PATH') or die('Hacking attempt!');

# this file is called on public page #

global $page, $template, $conf, $user;

switch ($page['sub_section'])
{
  /* download page */
  case 'init_zip':
  {
    $template->set_filename('index', realpath(BATCH_DOWNLOAD_PATH . 'template/init_zip.tpl'));
    
    try
    {
      $BatchDownloader = new BatchDownloader($_GET['set_id']);
      
      // delete set
      if ( isset($_GET['cancel']) )
      {
        $BatchDownloader->deleteLastArchive();
        $BatchDownloader->clearImages();
        pwg_query('DELETE FROM '.BATCH_DOWNLOAD_TSETS.' WHERE id = '.$_GET['set_id'].';');
        $_SESSION['page_infos'][] = l10n('Download set deleted');
        redirect(get_absolute_root_url());
      }
      
      // prepare next zip
      if ( isset($_GET['zip']) and $BatchDownloader->getParam('status') != 'new' and $BatchDownloader->getParam('status') != 'done' and $_GET['zip'] > $BatchDownloader->getParam('last_zip') )
      {
        $BatchDownloader->deleteLastArchive();
        $next_file = $BatchDownloader->createNextArchive();
      }
      
      // alert limit overflow
      if ($BatchDownloader->getParam('nb_images') > $conf['batch_download']['max_elements'])
      {
        $template->assign('elements_error', sprintf(
          l10n('You choose to download %d pictures, but the system is limited to %d. You can edit the set, or the last %d pictures will not be downloaded.'),
          $BatchDownloader->getParam('nb_images'),
          $conf['batch_download']['max_elements'],
          $BatchDownloader->getParam('nb_images') - $conf['batch_download']['max_elements']
          ));
      }
      else
      {
        if ($BatchDownloader->getParam('status') == 'new')
        {
          $missing_derivatives = $BatchDownloader->getMissingDerivatives(true);
        
          // generate missing files
          if (count($missing_derivatives))
          {
            $template->assign('missing_derivatives', $missing_derivatives);
          }
          // set is ready
          else
          {
            $BatchDownloader->updateParam('status', 'ready');
          }
        }
        
        // display download links
        if ($BatchDownloader->getParam('status') != 'new')
        {
          $template->assign('zip_links', $BatchDownloader->getDownloadList(BATCH_DOWNLOAD_PUBLIC . 'init_zip'));
        }
      }
      
      $set = $BatchDownloader->getSetInfo();
      
      // link to the zip
      if (isset($next_file))
      {
        $set['U_DOWNLOAD'] = get_root_url().BATCH_DOWNLOAD_PATH . 'download.php?set_id='.$_GET['set_id'].'&amp;zip='.$_GET['zip'];
        $page['infos'][] = sprintf(l10n('The archive is downloading, if the download doesn\'t start automatically please <a href="%s">click here</a>'), $set['U_DOWNLOAD']);
      }
      
      // link to edit page
      if ($BatchDownloader->getParam('status') != 'download' and $BatchDownloader->getParam('status') != 'done' and $BatchDownloader->getParam('nb_images') > 0)
      {
        $set['U_EDIT_SET'] = add_url_params(BATCH_DOWNLOAD_PUBLIC . 'view', array('set_id'=>$_GET['set_id']));
      }
      
      // cancel link
      if ($BatchDownloader->getParam('status') != 'done')
      {
        $set['U_CANCEL'] = add_url_params(BATCH_DOWNLOAD_PUBLIC . 'init_zip', array('set_id'=>$_GET['set_id'], 'cancel'=>'true'));
      }
      
      $template->assign(array(
        'set' => $set,
        'archive_timeout' => $conf['batch_download']['archive_timeout'],
        ));
    }
    catch (Exception $e)
    {
      array_push($page['errors'], $e->getMessage());
    }
    
    break;
  }
  
  /* edition page */
  case 'view':
  {
    $self_url = add_url_params(BATCH_DOWNLOAD_PUBLIC . 'view', array('set_id'=>$_GET['set_id']));
    
    $template->set_filename('index', realpath(BATCH_DOWNLOAD_PATH . 'template/view.tpl'));
    $template->assign(array(
      'BATCH_DOWNLOAD_PATH' => BATCH_DOWNLOAD_PATH,
      'U_VIEW' => $self_url,
      'U_INIT_ZIP' => add_url_params(BATCH_DOWNLOAD_PUBLIC . 'init_zip', array('set_id'=>$_GET['set_id'])),
      'SET_ID' => $_GET['set_id'],
      ));
    
    try
    {
      $BatchDownloader = new BatchDownloader($_GET['set_id']);
      
      if ($BatchDownloader->getParam('status') != 'new' && $BatchDownloader->getParam('status') != 'ready')
      {
        array_push($page['errors'], l10n('You can not edit this set'));
        break;
      }
      
      if ( isset($_GET['remove']) and preg_match('#^[0-9]+$#', $_GET['remove']) )
      {
        $BatchDownloader->removeImages(array($_GET['remove']));
      }
      
      $template->assign('set', $BatchDownloader->getSetInfo());
      
      $template->set_prefilter('index_thumbnails', 'batch_download_thumbnails_list_prefilter');
      
      $page['start'] = isset($_GET['start']) ? $_GET['start'] : 0;
      $page['items'] = array_keys($BatchDownloader->getImages());
      
      if (count($page['items']) > $page['nb_image_page'])
      {
        $page['navigation_bar'] = create_navigation_bar(
          $self_url,
          count($page['items']),
          $page['start'],
          $page['nb_image_page'],
          false
          );
        $template->assign('navbar', $page['navigation_bar']);
      }
      
      include(PHPWG_ROOT_PATH . 'include/category_default.inc.php');
    }
    catch (Exception $e)
    {
      array_push($page['errors'], $e->getMessage());
    }
    
    break;
  }
}

$template->assign(array(
  'BATCH_DOWNLOAD_PATH' => BATCH_DOWNLOAD_PATH,
  'BATCH_DOWNLOAD_ABS_PATH' => realpath(BATCH_DOWNLOAD_PATH).'/',
  ));


function batch_download_thumbnails_list_prefilter($content, &$smarty)
{
  // add links
  $search = '#(<li>|<li class="gthumb">)#';
  $replace = '$1
{strip}<a class="removeSet" href="{$U_VIEW}&amp;remove={$thumbnail.id}" data-id="{$thumbnail.id}" rel="nofollow">
{\'Remove from download set\'|@translate}&nbsp;<img src="{$ROOT_URL}{$BATCH_DOWNLOAD_PATH}template/image_delete.png" title="{\'Remove from download set\'|@translate}">
</a>{/strip}';

  // custom CSS and AJAX request
  $content.= file_get_contents(BATCH_DOWNLOAD_PATH.'template/thumbnails_css_js.tpl');

  return preg_replace($search, $replace, $content);
}

?>