package aurp

type ErrorCode int16

// Various error codes.
const (
	ErrCodeNormalClose           ErrorCode = -1
	ErrCodeRoutingLoop           ErrorCode = -2
	ErrCodeOutOfSync             ErrorCode = -3
	ErrCodeOptionNegotiation     ErrorCode = -4
	ErrCodeInvalidVersion        ErrorCode = -5
	ErrCodeInsufficientResources ErrorCode = -6
	ErrCodeAuthentication        ErrorCode = -7
)

func (e ErrorCode) String() string {
	return map[ErrorCode]string{
		ErrCodeNormalClose:           "normal connection close",
		ErrCodeRoutingLoop:           "routing loop detected",
		ErrCodeOutOfSync:             "connection out of sync",
		ErrCodeOptionNegotiation:     "option-negotiation error",
		ErrCodeInvalidVersion:        "invalid version number",
		ErrCodeInsufficientResources: "insufficient resources for connection",
		ErrCodeAuthentication:        "authentication error",
	}[e]
}