package msg

import (
	"bytes"
	"encoding/binary"
	"joylink.club/bj-rtsts-server/third_party/message"
)

type SseMsg struct {
	MsgHeader
	SeqNum  uint32 // 序列号
	SeqEnq1 uint32 //时序校正请求通道1 SID_1^T_1(NE)
	SeqEnq2 uint32 // 时序校正请求通道2 SID_2^T_2(NE)
	Tail    uint16 //报文位 CRC16
}

func (s *SseMsg) Encode() []byte {
	data := s.MsgHeader.encode()
	data = binary.LittleEndian.AppendUint32(data, s.SeqNum)
	data = binary.LittleEndian.AppendUint32(data, s.SeqEnq1)
	data = binary.LittleEndian.AppendUint32(data, s.SeqEnq2)
	s.Tail = message.Rssp_I_Crc16(data)
	data = binary.LittleEndian.AppendUint16(data, s.Tail)
	return data
}

func (s *SseMsg) Decode(data []byte) error {
	buf := bytes.NewBuffer(data)
	return binary.Read(buf, binary.LittleEndian, s)
}