switch to unmarshal marshal

packet.go

@@ -1,37 +1,13 @@
 package artnet
 
 import (
-	"encoding/binary"
-	"errors"
-	"slices"
+	"encoding"
 )
 
 type ArtNetPacket interface {
+	encoding.BinaryUnmarshaler
+	encoding.BinaryMarshaler
 	GetOpCode() uint16
-}
-
-var ArtNetID []uint8 = []uint8{'A', 'r', 't', '-', 'N', 'e', 't', 0x00}
-
-type ArtNetHeader struct {
-	ID        []uint8
-	OpCode    uint16
-	ProtVerHi uint8
-	ProtVerLo uint8
-}
-
-func NewHeader(data []byte) (*ArtNetHeader, error) {
-	if len(data) < 12 {
-		return nil, errors.New("header must be at least 12 bytes")
-	}
-
-	if !slices.Equal(ArtNetID, data[0:8]) {
-		return nil, errors.New("header id does not match Art-Net ID")
-	}
-
-	return &ArtNetHeader{
-		OpCode:    binary.LittleEndian.Uint16(data[8:10]),
-		ProtVerHi: data[10],
-		ProtVerLo: data[11],
-	}, nil
-
+	GetProtVer() uint16
+	GetID() []uint8
 }