<?PHP
  require_once('code/db.inc.php');
  require_once('code/user.inc.php');
  require_once('code/handlers.inc.php');
  
  class Pages {
    function Get($name, $type, $extra = null) {
      if(!$this->Exists($name, $type))
        return array('title' => $name,
                     'content' => ErrorMessage('PageNotFound', array('page' => $name)));
      
      $res = $GLOBALS['db']->Execute('SELECT id, handler, data FROM pages WHERE name = ? AND type = ?', array($name, $type));
      
      if(!$this->HasAccess($name, $type))
        return array('title' => $name,
                     'content' => ErrorMessage('Forbidden', array('page' => $name)));
      
      parse_str($res->fields[2], $data);
      $data = array_map('Unquote', $data);
      if($extra) $data = array_merge($data, $extra);
      $data['_id'] = $res->fields[0];
      $data['_page'] = $name;
      
      return $GLOBALS['handlers'][$res->fields[1]]->Get($data);
    }
    
    function Edit($name, $type) {
      if(!$this->Exists($name, $type))
        return array('title' => $name,
                     'content' => ErrorMessage('PageNotFound', array('page' => $name)));
      
      $res = $GLOBALS['db']->Execute('SELECT id, handler, data FROM pages WHERE name = ? AND type = ?', array($name, $type));
      
      if(!$GLOBALS['user']->IsAdmin())
        return array('title' => $name,
                     'content' => ErrorMessage('Forbidden', array('page' => $name)));
      
      parse_str($res->fields[2], $data = null);
      $data = array_map('Unquote', $data);
      $data['_id'] = $res->fields[0];
      $data['_page'] = $name;
      $data['_type'] = $type;
      
      return $this->Get($res->fields[1], 'e', array('_data' => $data));
    }
    
    function Exists($name, $type) {
      $res = $GLOBALS['db']->Execute('SELECT id FROM pages WHERE name = ? AND type = ?', array($name, $type));
      
      return ($res->RecordCount() > 0);
    }
    
    function HasAccess($name, $type) {
      $gid = $GLOBALS['user']->GetGid();
      $res = $GLOBALS['db']->Execute('SELECT access FROM pages WHERE name = ? AND type = ?', array($name, $type));
      
      return ($GLOBALS['user']->IsAdmin() || (ord($res->fields[0][$gid/8]) & (1 << ($gid%8))) != 0);
    }
  }
  
  $GLOBALS['pages'] = new Pages;
?>