private void Restore(Backup backup, string backupId, ConfirmCallback shouldBackup, ConfirmCallback canOverwrite)
{
backupId = _backupRepository.GetBackupId(backup, backupId);
if (shouldBackup(backup, backupId))
{
var newBackupId = _backupRepository.GetBackupId();
Backup(backup, newBackupId, canOverwrite);
}
_backupRepository.LoadBackup(backup, backupId);
}