// v3 to v4 compatibility wrapper
function decodeUplink(input) {
	return {
		data: Decode(input.fPort, input.bytes, input.variables)
	};
}

function encodeDownlink(input) {
	return {
		bytes: Encode(input.fPort, input.data, input.variables)
	};
}

// Decode decodes an array of bytes into an object.
//  - fPort contains the LoRaWAN fPort number
//  - bytes is an array of bytes, e.g. [225, 230, 255, 0]
//  - variables contains the device variables e.g. {"calibration": "3.5"} (both the key / value are of type string)
// The function must return an object, e.g. {"temperature": 22.5}
function Decode(fPort, bytes, variables)  {
  // Decode an uplink message from a buffer
  // (array) of bytes to an object of fields.
	var value=(bytes[0]<<8 | bytes[1]) & 0x3FFF;
	var batV=value/1000;//Battery,units:V
   
	value=bytes[3]<<8 | bytes[4];
	var TEMP=value/10;	//Unit:°C (-30 ~ 70°)
   
	value=bytes[5]<<8 | bytes[6];
	var MOISTURE=value/10; //Unit:% (m3/m3)
  
	value=bytes[7]<<8 | bytes[8];
	var SALINITY=value; //Unit:μ S/cm (0 ~ 2000 μ S/cm, 0 ~ 10000 μ S/cm, 0 ~ 2000 μ S/cm)
  
	value=bytes[9]<<8 | bytes[10];
	var EC=value;	//Unit:μ S/cm (0 ~ 2000 μ S/cm, 0 ~ 10000 μ S/cm, 0 ~ 2000 μ S/cm)
  
	value=bytes[11]<<8 | bytes[12];
	var N=value;	//Unit:mg/kg
  
	value=bytes[13]<<8 | bytes[14];
	var P=value;	//Unit:mg/kg
  
	value=bytes[15]<<8 | bytes[16];
	var K=value;	//Unit:mg/kg
   
  return {
       Bat:batV,
       TEMP_SOIL:TEMP,
       MOISTURE_SOIL:MOISTURE,
       SALINITY_SOIL:SALINITY,
       EC_SOIL:EC,	
       N_SOIL:N,
       P_SOIL:P,
       K_SOIL:K,
  };
}