package core

// BackupError represents an error that occurred during backup operations
type BackupError struct {
	Message string
	Cause   error
}

// Error implements the error interface
func (e *BackupError) Error() string {
	if e.Cause != nil {
		return e.Message + ": " + e.Cause.Error()
	}
	return e.Message
}

// Unwrap returns the underlying cause of the error
func (e *BackupError) Unwrap() error {
	return e.Cause
}

// NewBackupError creates a new BackupError
func NewBackupError(message string, cause error) *BackupError {
	return &BackupError{
		Message: message,
		Cause:   cause,
	}
}