MokoSmart LW001-BG PRO Helium Decoder [ERRO]Incorrect Year

[S117X]

So this is the best decoder I've found on Ubidots guide, somehow the year reporting for GPS Payload is YEAR 3991 so ubidots is not able to read data on specific date format and it cant go pass year 2099. So Map Widget is not able to see data!

Is there something wrong in the code

function calculateDaysInAMonth(month)
{
var daysInMonth = 0;
switch (month)
{
case 1: daysInMonth = 31;break;
case 2: daysInMonth = 28;break;
case 3: daysInMonth = 31;break;
case 4: daysInMonth = 30;break;
case 5: daysInMonth = 31;break;
case 6: daysInMonth = 30;break;
case 7: daysInMonth = 31;break;
case 8: daysInMonth = 31;break;
case 9: daysInMonth = 30;break;
case 10: daysInMonth = 31;break;
case 11: daysInMonth = 30;break;
case 12: daysInMonth = 31;break;
}
return daysInMonth;
}

function timeStampParser(bytes)
{
var timeStamp = 0;
var years = bytes[4] << 8 | bytes[5] << 0;
var months = bytes[6];
var days = bytes[7];
var hours = bytes[8];
var minutes = bytes[9];
var seconds = bytes[10];
var daysInAMonth = calculateDaysInAMonth(months);
timeStamp = (seconds + minutes60 + hours6060 + days246060 + monthsdaysInAMonth246060 + years365246060) *1000;
return timeStamp;

}

function coordinatesParser(coordinate)
{
//134217728=0x80000000
//4294967296=0x100000000
if(coordinate > 134217728){coordinate -= 4294967296};
coordinate /= 1000000;
return coordinate;
}

function noLocationHandler(payload,bytes)
{
var positioningFailureReason;

if(bytes[3] == 00){positioningFailureReason = "WIFI positioning time not enough"}
else if(bytes[3] == 01){positioningFailureReason = "WIFI position strategies timeout"}
else if(bytes[3] == 02){positioningFailureReason = "WIFI module is not detected"}
else if(bytes[3] == 03){positioningFailureReason = "BlueTooth positioning time not enough"}
else if(bytes[3] == 04){positioningFailureReason = "BlueTooth position strategies timeout"}
else if(bytes[3] == 05){positioningFailureReason = "BlueTooth broadcasting in progress"}
else if(bytes[3] == 06){positioningFailureReason = "GPS position time budget over"}
else if(bytes[3] == 07){positioningFailureReason = "GPS coarse positioning timeout"}
else if(bytes[3] == 08){positioningFailureReason = "GPS fine positioning timeout"}
else if(bytes[3] == 09){positioningFailureReason = "GPS position time is not enough"}
else if(bytes[3] == 10){positioningFailureReason = "GPS aiding positioning timeout"}
else if(bytes[3] == 11){positioningFailureReason = "GPS cold start positioning timeout"}
else if(bytes[3] == 12){positioningFailureReason = "Interrupted by downlink for position"}
else if(bytes[3] == 13){positioningFailureReason = "Interrupted positioning at start of movement"}
var dummy = {
"location-fixed":{
"value":0,
"context":{
"payload-type":"no-location-fixed",
"error-source":positioningFailureReason,

      }
  },

};
Object.assign(payload, dummy);
if(bytes[3] == 6 || bytes[3] == 7 || bytes[3] == 8 || bytes[3] == 9 || bytes[3] == 10 || bytes[3] == 11)
{
var podp = bytes[5] / 10; if(podp == 255){};
var cn0 = bytes[6];
var cn1 = bytes[7];
var cn2 = bytes[8];
var cn3 = bytes[9];
var errors = {
"PODP":podp,
"C/N 0":cn0,
"C/N 1":cn1,
"C/N 2":cn2,
"C/N 3":cn3,

};

Object.assign(payload["location-fixed"]["context"], errors);

}

return payload;
}

function locationHandler(payload,bytes)
{
var positioningType = bytes[3];
var timeStamp = timeStampParser(bytes);
var fixedType;
if(positioningType == 0x00){fixedType = "Wifi";}
else if(positioningType == 0x01){fixedType = "BlueTooth";}
else if(positioningType == 0x02){fixedType = "GPS";}
else
{
return {
"error": "invalid positioning value",
"value": positioningType,
"allowed values":{
"Wifi": 0,
"BlueTooth":1,
"GPS":2
}
};
}

var dummy = {
"location-fixed":{
"value":1,
"timestamp":timeStamp,
"context":{
"payload-type":"location-fixed",
"fixed-type":fixedType
}
},
};
Object.assign(payload, dummy);
Object.assign(payload["battery-status"],{"timestamp":timeStamp});
Object.assign(payload["battery-voltage"],{"timestamp":timeStamp});
Object.assign(payload["temperature"],{"timestamp":timeStamp});
Object.assign(payload["battery-status"]["context"],{"fixed-type":fixedType});
Object.assign(payload["battery-voltage"]["context"],{"fixed-type":fixedType});
Object.assign(payload["temperature"]["context"],{"fixed-type":fixedType});

if(positioningType == 0x02)
{
var lat = (bytes[13]<< 24 | bytes[14]<< 16 | bytes[15]<< 8 | bytes[16]<< 0);
var lng = (bytes[17]<< 24 | bytes[18]<< 16 | bytes[19]<< 8 | bytes[20]<< 0);
var dummyPayload = {};

lat = coordinatesParser(lat);
lng = coordinatesParser(lng);

positionPayload = {
  "position":{
      "value":1,
      "timestamp":timeStamp,
      "context":{
        "lat":lat,
        "lng":lng,
        "payload-type":"location-fixed",
        "fixed-type":"GPS",
      }     
  },
};
Object.assign(payload, positionPayload);

}
return payload;
}

function buildCommonPayload(port,batteryStatus,batteryVoltage,temperature)
{
var payload = {};

var contx;

if(port == 0x1){contx = "heartbeat-payload";}
else if(port == 0x2){contx = "location-fixed-payload";}
else if(port == 0x3){contx = "no-location-fixed-payload";}

payload = {
"battery-status":{
"value":batteryStatus,
"context": {
"payload-type":contx
},
},
"battery-voltage":{
"value":batteryVoltage,
"context": {
"payload-type":contx
},
},
"temperature":{
"value":temperature,
"context": {
"payload-type":contx
},
},
};
return payload;
}

function buildPayload(bytes,port,batteryStatus,batteryVoltage,temperature){

var payload = {};

switch (port)
{
//heartbeat payload
case 1:
payload = buildCommonPayload(port,batteryStatus,batteryVoltage,temperature);
break;
//location fixed payload
case 2:
payload = buildCommonPayload(port,batteryStatus,batteryVoltage,temperature);
payload = locationHandler(payload, bytes);
break;

//location failure payload 
case 3: 
  payload = buildCommonPayload(port,batteryStatus,batteryVoltage,temperature);
  payload = noLocationHandler(payload,bytes);

  break;

}
return payload;
}

function Decoder(bytes,port) {
var payload = {};
var deviceStatus = bytes[0];
var temperature = bytes[1];
var ACKAndBatteryVoltage = bytes[2];

var operationMode = deviceStatus & 0x3;//bit0~1
var batteryStatus = deviceStatus & 0x4;//bi2

var motionState = deviceStatus & (1<<5);//bit5

//correction for the sign
if(temperature > 128){temperature -= 256;};

var _ACK = ACKAndBatteryVoltage & 0xF;
var batteryVoltage = ((ACKAndBatteryVoltage & 0xF0)>>4)*0.1 + 2.2;

payload = buildPayload(bytes, port, batteryStatus, batteryVoltage, temperature);
Object.assign(payload, {"port":port});
return payload;
}