package com.jasci.printnode.api;

import java.io.IOException;

import java.math.BigInteger;

import java.util.Arrays;

import java.util.HashMap;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.springframework.stereotype.Service;

@Service

public class ReadingScale {

static Logger log = LoggerFactory.getLogger(ReadingScale.class.getName());

/**

* @Description: Main method

* @param str

* @throws IOException

*/

public static void main(String args[]) throws Exception{

log.debug("Inside main method" + args.toString() );

getWeight(39686);

}

/**

* @Description: Get weight from scale

* @param str

* @return

* @return

* @throws Exception

* @throws IOException

*/

public static double getWeight(int computerId) throws Exception{

HashMap<String, BigInteger> measurement= null;

BigInteger measurementValue = null;

double weight = 0;

double nineZeros = 1000000000;

log.debug("Inside getWeight: " + computerId);

try {

//Firstly, we'll create a new Auth object.

Auth myAuth = new Auth();

//We're going to set our credentials for future use with Auth.setApiKey.

myAuth.setApiKey("EnterYourAPIKEY");

log.debug("API key " + Arrays.toString(myAuth.getCredentials()));

//We then make an APIClient, which saves our authorization to use with requests.

APIClient aClient = new APIClient(myAuth);

log.debug("APIClient " + aClient.getWhoami());

//If we're going to get weight, we need a scale. We'll get one using Computer Id.

Scale myScales = null;

try {

myScales = aClient.getScales(computerId)[0];

} catch (Exception ObjectJasciException) {

ObjectJasciException.printStackTrace();

log.error("can't find scale: " + ObjectJasciException.getMessage());

ObjectJasciException.printStackTrace();

throw ObjectJasciException;

}

log.debug("SCALES : " + myScales.toString());

//get Weight only if a scale is found

if (myScales != null){

//Original value from scale as a Hash Map (key, value)

measurement = myScales.getMeasurement();

//Get value only from hash map as Big Integer

measurementValue = (BigInteger) measurement.values().toArray()[0];

//Convert measurementValue into Double

Double value = measurementValue.doubleValue();

//Divide value into 1000000000 to get decimal

weight = value/nineZeros;

System.out.println("MEASUREMENT: " + measurement);

System.out.println("MEASUREMENT VALUE: " + measurementValue);

System.out.println("WEIGHT: " + weight);

}

} catch (Exception ObjectJasciException) {

ObjectJasciException.printStackTrace();

log.error(".getWeightFromScale() throws exception: " + ObjectJasciException.getMessage());

throw ObjectJasciException;

}

return weight;

}

}