package shared

import "encoding/binary"

const PROTO_VERSION uint16 = 1

const (
	unused uint16 = iota
	REQ_REGISTER
	RESP_REGISTER
)

func Uint16(v uint16) []byte {
	out := make([]byte, 2)
	binary.LittleEndian.PutUint16(out, v)
	return out
}

func BuildPkt(pktType uint16, data []byte) []byte {
	out := make([]byte, 4+len(data))
	binary.LittleEndian.PutUint16(out[0:], PROTO_VERSION)
	binary.LittleEndian.PutUint16(out[2:], pktType)
	copy(out[4:], data)
	return out
}