func handleFolderForFolder(fullPath string, stat os.FileInfo) {
	// update folder table for browsing by folder
	modTime := stat.ModTime()
	var folder db.Folder
	err := tx.Where("path = ?", fullPath).First(&folder).Error
	if !gorm.IsRecordNotFoundError(err) &&
		modTime.Before(folder.UpdatedAt) {
		// we found the record but it hasn't changed
		currentDirStack.Push(&folder)
		return
	}
	_, folderName := path.Split(fullPath)
	folder.Path = fullPath
	folder.ParentID = currentDirStack.PeekID()
	folder.Name = folderName
	tx.Save(&folder)
	currentDirStack.Push(&folder)
}

func handleFolderForAlbum(fullPath string, stat os.FileInfo) {
	// update album table (the currentAlbum record will be updated when
	// we exit this folder)
	err := tx.Where("path = ?", fullPath).First(&currentAlbum).Error
	if !gorm.IsRecordNotFoundError(err) {
		// we found the record
		// TODO: think about mod time here
		return
	}
	currentAlbum = db.Album{Path: fullPath}
	fmt.Println("SAVING", fullPath, err)
	tx.Save(&currentAlbum)
}

func handleFolder(fullPath string, stat os.FileInfo) error {
	handleFolderForAlbum(fullPath, stat)
	handleFolderForFolder(fullPath, stat)
	return nil
}