var request = require('request')
var crypto = require('crypto')
var md5 = require('md5')
var n = require('nonce')()
var config = require('./config')
var base64 = require('base-64')
var utf8 = require('utf8')

var nonce = n()
console.log('nonce', nonce)

var postParams = {
  "Currency": "NAV"
}

console.log('json stringify', JSON.stringify(postParams))

var text = md5(JSON.stringify(postParams))
var bytes = utf8.encode(text)
var base64MD5 = base64.encode(bytes)

var reqSig = config.cryptopia.apiKey
  + 'POST'
  + config.cryptopia.apiUrl + 'getbalance'
  + nonce
  + base64MD5

console.log('reqSig', reqSig)

const hmacSig = crypto.createHmac('sha256', base64.decode(config.cryptopia.apiSecret))
                   .update(reqSig)
                   .digest('hex');

var auth = config.cryptopia.apiKey + ':' + base64.encode(hmacSig) + ':' + nonce

console.log('amx', auth)

request.post({
  headers: {
    'Content-Type' : 'application/json; charset=utf-8',
    'Authorization': 'amx ' + auth,
  },
  url: config.cryptopia.apiUrl + 'GetBalance',
  body: JSON.stringify(postParams)
}, function(error, response, body){
  console.log(body)
});