<?php 
/* inspired by comments.php */
if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');

load_language('plugin.lang', COA_PATH);
$conf['comments_on_albums'] = unserialize($conf['comments_on_albums']);

$template->assign(
  array(
    'COA_PATH' => COA_PATH,
    'ICON_COLOR' => $conf['comments_on_albums']['icon_color'],
    'ICON_COLOR_OVER' => $conf['comments_on_albums']['icon_color_over'],
    )
  );


// +-----------------------------------------------------------------------+
// |                             main page                                 |
// +-----------------------------------------------------------------------+

if (!isset($_GET['display_mode'])) 
{  
  // adds a button for switch page
  $template->set_prefilter('comments', 'coa_add_button');
  
  function coa_add_button($content, &$smarty) 
  {
    $search = '<ul class="categoryActions">';

$replacement = '
{html_head}
  <style type="text/css">
    .pwg-icon-comments-albums {ldelim}
      background-image: url({$COA_PATH}template/s26/{$ICON_COLOR});
      background-position: -26px 0;
    }
    a:hover .pwg-icon-comments-albums {ldelim}
      background-image: url({$COA_PATH}template/s26/{$ICON_COLOR_OVER});
      background-position: -26px 0;
    }
  </style>
{/html_head}

  '.$search.'
    <li><a href="comments.php?display_mode=albums" title="' . l10n('Comments on albums') . '" class="pwg-state-default pwg-button">
      <span class="pwg-icon pwg-icon-comments-albums">&nbsp;</span><span class="pwg-button-text">' . l10n('Comments on albums') . '</span>
    </a></li>';

    return str_replace($search, $replacement, $content);
  }
  
  
// +-----------------------------------------------------------------------+
//                        comments on albums page                          |
// +-----------------------------------------------------------------------+

} 
else if ($_GET['display_mode'] == 'albums') 
{
  // reset some template vars
  $template->clear_assign(array('comments', 'navbar', 'sort_by_options'));
  
  // sort_by : database fields proposed for sorting comments list
  $sort_by = array(
    'date' => l10n('comment date'),
    'category_id' => l10n('album')
    );
  $template->assign('sort_by_options', $sort_by);

  // +-----------------------------------------------------------------------+
  // |                         comments management                           |
  // +-----------------------------------------------------------------------+
  $comment_id = null;
  $action = null;

  $actions = array('delete_albums', 'validate_albums', 'edit_albums'); // different indexes to not interfer with the main process
  foreach ($actions as $loop_action) 
  {
    if (isset($_GET[$loop_action])) 
    {
      $action = $loop_action;
      check_input_parameter($action, $_GET, false, PATTERN_ID);
      $comment_id = $_GET[$action];
      break;
    }
  }

  if (isset($action)) 
  {
    include_once(COA_PATH.'include/functions_comment.inc.php');
    
    check_pwg_token();
    
    $comment_author_id = get_comment_author_id_albums($comment_id);
    
    $true_action = str_replace('_albums', null, $action); // but we must check true action names

    if (can_manage_comment($true_action, $comment_author_id)) 
    {
      $perform_redirect = false;

      if ('delete_albums' == $action) 
      {
        delete_user_comment_albums($comment_id);
        $perform_redirect = true;
      }
      if ('validate_albums' == $action) 
      {
        validate_user_comment_albums($comment_id);
        $perform_redirect = true;
      }
      if ('edit_albums' == $action) 
      {
        if (!empty($_POST['content'])) 
        {
          update_user_comment_albums(
            array(
              'comment_id' => $_GET['edit_albums'],
              'category_id' => $_POST['image_id'],
              'content' => $_POST['content']
              ), 
            $_POST['key']
            );
          //$perform_redirect = true;
          $edit_comment = null;
        } 
        else 
        {
          $edit_comment = $_GET['edit_albums'];
        }
      }
      if ($perform_redirect) 
      {
        $redirect_url = 
          PHPWG_ROOT_PATH
          .'comments.php'
          .get_query_string_diff(array('delete_albums','validate_albums','edit_albums','pwg_token'));
        
        redirect($redirect_url);
      }
    }
  }

  // +-----------------------------------------------------------------------+
  // |                            navigation bar                             |
  // +-----------------------------------------------------------------------+
  if (isset($_GET['start']) and is_numeric($_GET['start'])) 
  {
    $start = $_GET['start'];
  } 
  else 
  {
    $start = 0;
  }

  $query = '
SELECT 
    COUNT(DISTINCT(com.id))
  FROM '.COA_TABLE.' AS com
  LEFT JOIN '.USERS_TABLE.' As u
    ON u.'.$conf['user_fields']['id'].' = com.author_id
  WHERE '.implode('
    AND ', $page['where_clauses']).'
;';
  list($counter) = pwg_db_fetch_row(pwg_query($query));

  $url = 
    PHPWG_ROOT_PATH
    .'comments.php'
    .get_query_string_diff(array('start','delete_albums','validate_albums','edit_albums','pwg_token'));
    
  $navbar = create_navigation_bar(
    $url, 
    $counter, 
    $start, 
    $page['items_number'], 
    ''
    );
  $template->assign('navbar', $navbar);

  // +-----------------------------------------------------------------------+
  // |                        last comments display                          |
  // +-----------------------------------------------------------------------+
  $comments = array();
  $element_ids = array();
  $category_ids = array();

  $query = '
SELECT
    com.id AS comment_id,
    com.category_id,
    com.author,
    com.author_id,
    '.$conf['user_fields']['username'].' AS username,
    com.date,
    com.content,
    com.validated
  FROM '.COA_TABLE.' AS com
    LEFT JOIN '.USERS_TABLE.' As u
      ON u.'.$conf['user_fields']['id'].' = com.author_id
  WHERE '.implode('
    AND ', $page['where_clauses']).'
  GROUP BY
    comment_id,
    com.category_id,
    com.author,
    com.author_id,
    com.date,
    com.content,
    com.validated
  ORDER BY '.$page['sort_by'].' '.$page['sort_order'];
  if ('all' != $page['items_number']) 
  {
    $query.= '
  LIMIT '.$page['items_number'].' OFFSET '.$start;
  }
  $query.= '
;';
  $result = pwg_query($query);

  while ($row = pwg_db_fetch_assoc($result)) 
  {
    array_push($comments, $row);
    array_push($element_ids, $row['category_id']);
  }

  if (count($comments) > 0) 
  {
    // retrieving category informations
    $query = '
SELECT 
    cat.id, 
    cat.name, 
    cat.permalink, 
    cat.uppercats, 
    com.id as comment_id,
    img.id AS image_id,
    img.path,
    img.tn_ext
  FROM '.CATEGORIES_TABLE.' AS cat
    LEFT JOIN '.COA_TABLE.' AS com
      ON com.category_id = cat.id
    LEFT JOIN '.USER_CACHE_CATEGORIES_TABLE.' AS ucc 
      ON ucc.cat_id = cat.id AND ucc.user_id = '.$user['id'].'
    LEFT JOIN '.IMAGES_TABLE.' AS img
      ON img.id = ucc.user_representative_picture_id
  '.get_sql_condition_FandF(
    array(
      'forbidden_categories' => 'cat.id',
      'visible_categories' => 'cat.id'
      ), 
    'WHERE'
    ).'
    AND cat.id IN ('.implode(',', $element_ids).')
;';
    $categories = hash_from_query($query, 'comment_id');

    foreach ($comments as $comment) 
    {
      // category url
      $comment['cat_url'] = duplicate_index_url(
        array(
          'category' => array(
            'id' => $categories[$comment['comment_id']]['id'], 
            'name' => $categories[$comment['comment_id']]['name'], 
            'permalink' => $categories[$comment['comment_id']]['permalink'],
            ),
          array('start')
          )
        );
       
      // category thumbnail
      $comment['thumb'] = get_thumbnail_url(
        array(
          'id' => $categories[$comment['comment_id']]['image_id'],
          'path' => $categories[$comment['comment_id']]['path'],
          'tn_ext' => @$categories[$comment['comment_id']]['tn_ext'],
          )
       );
      
      // comment content
      $tpl_comment = array(
        'ID' => $comment['comment_id'],
        'U_PICTURE' => $comment['cat_url'],
        'ALT' => trigger_event('render_category_name', $categories[$comment['comment_id']]['name']),
        'TN_SRC' => $comment['thumb'],
        'AUTHOR' => trigger_event('render_comment_author', $comment['author']),
        'DATE' => format_date($comment['date'], true),
        'CONTENT' => trigger_event('render_comment_content', $comment['content'], 'album'),
        );

      // rights
      if (can_manage_comment('delete', $comment['author_id'])) 
      {
        $url = 
          get_root_url()
          .'comments.php'
          .get_query_string_diff(array('delete','validate','edit', 'pwg_token'));

        $tpl_comment['U_DELETE'] = add_url_params(
          $url, 
          array(
            'delete_albums' => $comment['comment_id'],
            'pwg_token' => get_pwg_token(),
            )
          );
      }
      if (can_manage_comment('edit', $comment['author_id'])) 
      {
        $url = 
          get_root_url()
          .'comments.php'
          .get_query_string_diff(array('edit', 'delete','validate', 'pwg_token'));

        $tpl_comment['U_EDIT'] = add_url_params(
          $url, 
          array(
            'edit_albums' => $comment['comment_id'],
            'pwg_token' => get_pwg_token(),
            )
          );

        if (isset($edit_comment) and ($comment['comment_id'] == $edit_comment)) 
        {
          $key = get_ephemeral_key(2, $comment['category_id']);
          $tpl_comment['IN_EDIT'] = true;
          $tpl_comment['KEY'] = $key;
          $tpl_comment['IMAGE_ID'] = $comment['category_id'];
          $tpl_comment['CONTENT'] = $comment['content'];
        }
      }
      if (can_manage_comment('validate', $comment['author_id'])) 
      {
        if ('true' != $comment['validated']) 
        {
          $tpl_comment['U_VALIDATE'] = add_url_params(
            $url, 
            array(
              'validate_albums'=> $comment['comment_id'],
              'pwg_token' => get_pwg_token(),
              )
            );
        }
      }
      
      $template->append('comments', $tpl_comment);
    }
  }

  // +-----------------------------------------------------------------------+
  // |                            template                                   |
  // +-----------------------------------------------------------------------+
  $template->set_filenames(array('comments'=> dirname(__FILE__).'/../template/comments_page.tpl'));
  
  // add a line to display category name
  $template->set_prefilter('comments', 'coa_change_comments_list');
  
  function coa_change_comments_list($content, &$smarty) {
    $search = '<img src="{$comment.TN_SRC}" alt="{$comment.ALT}">';
    $replacement = $search.'<br/>{$comment.ALT}';
    return str_replace($search, $replacement, $content);
  }
}

?>