// newRXPacketFromRXPK transforms a Semtech packet into a models.RXPacket.
func newRXPacketFromRXPK(mac lorawan.EUI64, rxpk RXPK) (models.RXPacket, error) {
var phy lorawan.PHYPayload
if err := phy.UnmarshalText([]byte(rxpk.Data)); err != nil {
return models.RXPacket{}, fmt.Errorf("gateway: could not unmarshal PHYPayload: %s", err)
}
dataRate, err := newDataRateFromDatR(rxpk.DatR)
if err != nil {
return models.RXPacket{}, fmt.Errorf("gateway: could not get DataRate from DatR: %s", err)
}
rxPacket := models.RXPacket{
PHYPayload: phy,
RXInfo: models.RXInfo{
MAC: mac,
Time: time.Time(rxpk.Time),
Timestamp: rxpk.Tmst,
Frequency: int(rxpk.Freq * 1000000),
Channel: int(rxpk.Chan),
RFChain: int(rxpk.RFCh),
CRCStatus: int(rxpk.Stat),
DataRate: dataRate,
CodeRate: rxpk.CodR,
RSSI: int(rxpk.RSSI),
LoRaSNR: rxpk.LSNR,
Size: int(rxpk.Size),
},
}
return rxPacket, nil
}