Wordpress permalinks for custom post types (not working)

add_action('init', 'my_videos_rewrite');
 
function my_videos_rewrite() {
 
	add_rewrite_tag( '%videos%', '([^/]+)' );
  $extra_post_types = get_post_types( array( '_builtin' => false, 'publicly_queryable' => true ) );
  if( empty( $extra_post_types ) )
    return;
  add_rewrite_tag( '%post_type%', '('.implode('|',$extra_post_types).')' );
  add_permastruct( 'videos', '/%post_type%/%year%/%monthnum%/%videos%/', true, 1 );
 
}
 
function my_custom_permalinks_adapt( $link, $post, $leavename, $sample ){
  if( 'videos' != $post->post_type )
    return $link;
  $rewritecode = array(
    '%year%',
    '%monthnum%',
    '%day%',
    '%hour%',
    '%minute%',
    '%second%',
    $leavename? '' : '%postname%',
    '%post_id%',
    '%post_type%',
    $leavename? '' : '%pagename%',
    $leavename? '' : '%videos%',
  );
  $unixtime = strtotime($post->post_date);
  $date = explode(' ', date('Y m d H i s', $unixtime));
  $replace_array = array(
    $date[0],
    $date[1],
    $date[2],
    $date[3],
    $date[4],
    $date[5],
    $post->post_name,
    $post->ID,
    $post->post_type,
    $post->post_name,
    $post->post_name,
  );
  $path = str_replace($rewritecode, $replace_array, $link);
  return $path;
}
 
add_action( 'post_type_link', 'my_custom_permalinks_adapt', 10, 4 );