WIP

lib/plugins.js

@@ -16,6 +16,13 @@ var POLLING_RATE = 60 * 1000 // poll each minute
 var REAP_RATE = 2 * 1000
 var PENDING_TIMEOUT = 70 * 1000
 
+var BTC_COIN = {
+  unitCode: 'BTC',
+  displayCode: 'mBTC',
+  unitScale: 8,
+  displayScale: 5
+}
+
 if (argv.timeout) PENDING_TIMEOUT = argv.timeout / 1000
 
 // TODO: might have to update this if user is allowed to extend monitoring time
@@ -114,12 +121,13 @@ function loadPlugin (name, config) {
 
 function loadOrConfigPlugin (pluginHandle, pluginType, cryptoCoin, currency,
     onChangeCallback) {
-  if (!cryptoCoin) cryptoCoin = 'any'
-  var currentName = cryptoCoin === 'any' || cryptoCoin === 'BTC'
-  ? cachedConfig.exchanges.plugins.current[pluginType]
-  : cachedConfig.exchanges.plugins.current[cryptoCoin][pluginType]
+  var cryptoCode = cryptoCoin ? cryptoCoin.unitCode : 'any'
 
-  var pluginChanged = currentlyUsedPlugins[cryptoCoin][pluginType] !== currentName
+  var currentName = cryptoCode === 'any' || cryptoCode === 'BTC'
+  ? cachedConfig.exchanges.plugins.current[pluginType]
+  : cachedConfig.exchanges.plugins.current[cryptoCode][pluginType]
+
+  var pluginChanged = currentlyUsedPlugins[cryptoCode][pluginType] !== currentName
 
   if (!currentName) pluginHandle = null
   else { // some plugins may be disabled
@@ -130,9 +138,9 @@ function loadOrConfigPlugin (pluginHandle, pluginType, cryptoCoin, currency,
     if (pluginHandle && !pluginChanged) pluginHandle.config(pluginConfig)
     else {
       pluginHandle = loadPlugin(currentName, pluginConfig)
-      currentlyUsedPlugins[cryptoCoin] = currentlyUsedPlugins[cryptoCoin] || {}
-      currentlyUsedPlugins[cryptoCoin][pluginType] = currentName
-      logger.debug('[%s] plugin(%s) loaded: %s', cryptoCoin, pluginType, pluginHandle.NAME ||
+      currentlyUsedPlugins[cryptoCode] = currentlyUsedPlugins[cryptoCode] || {}
+      currentlyUsedPlugins[cryptoCode][pluginType] = currentName
+      logger.debug('[%s] plugin(%s) loaded: %s', cryptoCode, pluginType, pluginHandle.NAME ||
         currentName)
     }
   }
@@ -149,29 +157,30 @@ exports.configure = function configure (config) {
 
   cachedConfig = config
   deviceCurrency = config.exchanges.settings.currency
-  cryptoCoins = config.exchanges.settings.coins || ['BTC']
+  cryptoCoins = config.exchanges.settings.coins || [BTC_COIN]
 
   cryptoCoins.forEach(function (cryptoCoin) {
     // TICKER [required] configure (or load)
+    var cryptoCode = cryptoCoin.unitCode
     loadOrConfigPlugin(
-      tickerPlugins[cryptoCoin],
+      tickerPlugins[cryptoCode],
       'ticker',
       cryptoCoin,
       deviceCurrency, // device currency
       function onTickerChange (newTicker) {
-        tickerPlugins[cryptoCoin] = newTicker
+        tickerPlugins[cryptoCode] = newTicker
         pollRate(cryptoCoin)
       }
     )
 
     // WALLET [required] configure (or load)
     loadOrConfigPlugin(
-      walletPlugins[cryptoCoin],
+      walletPlugins[cryptoCode],
       'transfer',
       cryptoCoin,
       null,
       function onWalletChange (newWallet) {
-        walletPlugins[cryptoCoin] = newWallet
+        walletPlugins[cryptoCode] = newWallet
         pollBalance(cryptoCoin)
       }
     )
@@ -240,9 +249,10 @@ exports.pollQueries = function pollQueries (session, cb) {
 }
 
 function _sendCoins (toAddress, cryptoUnits, cryptoCoin, cb) {
-  var walletPlugin = walletPlugins[cryptoCoin]
+  var cryptoCode = cryptoCoin.unitCode
+  var walletPlugin = walletPlugins[cryptoCode]
   var transactionFee = cachedConfig.exchanges.settings.transactionFee
-  if (cryptoCoin === 'BTC') {
+  if (cryptoCode === 'BTC') {
     walletPlugin.sendBitcoins(toAddress, cryptoUnits, transactionFee, cb)
   } else {
     walletPlugin.sendCoins(toAddress, cryptoUnits, cryptoCoin, transactionFee, cb)
@@ -350,11 +360,10 @@ exports.cashOut = function cashOut (session, tx, cb) {
     account: 'deposit'
   }
 
-  var cryptoCoin = tx.coin
-  ? tx.coin.unitCode
-  : 'BTC'
+  var cryptoCoin = tx.coin || BTC_COIN
+  var cryptoCode = cryptoCoin.unitCode
 
-  var walletPlugin = walletPlugins[cryptoCoin]
+  var walletPlugin = walletPlugins[cryptoCode]
 
   walletPlugin.newAddress(tmpInfo, function (err, address) {
     if (err) return cb(err)
@@ -372,9 +381,10 @@ exports.dispenseAck = function dispenseAck (session, rec) {
 }
 
 exports.fiatBalance = function fiatBalance (cryptoCoin) {
+  var cryptoCode = cryptoCoin.unitCode
   var rawRate = exports.getDeviceRate(cryptoCoin).rates.ask
   var commission = cachedConfig.exchanges.settings.commission
-  var lastBalance = lastBalances[cryptoCoin]
+  var lastBalance = lastBalances[cryptoCode]
 
   if (!rawRate || !lastBalance) return null
 
@@ -432,9 +442,10 @@ function stopTrader () {
 }
 
 function pollBalance (cryptoCoin, cb) {
-  logger.debug('[%s] collecting balance', cryptoCoin)
+  var cryptoCode = cryptoCoin.unitCode
+  logger.debug('[%s] collecting balance', cryptoCode)
 
-  var walletPlugin = walletPlugins[cryptoCoin]
+  var walletPlugin = walletPlugins[cryptoCode]
 
   walletPlugin.balance(function (err, balance) {
     if (err) {
@@ -442,22 +453,23 @@ function pollBalance (cryptoCoin, cb) {
       return cb && cb(err)
     }
 
-    logger.debug('[%s] Balance update:', cryptoCoin, balance)
+    logger.debug('[%s] Balance update:', cryptoCode, balance)
     balance.timestamp = Date.now()
-    lastBalances[cryptoCoin] = balance
+    lastBalances[cryptoCode] = balance
 
     return cb && cb(null, lastBalances)
   })
 }
 
 function pollRate (cryptoCoin, cb) {
-  logger.debug('[%s] polling for rates (%s)', cryptoCoin, tickerPlugin.NAME)
-  var tickerPlugin = tickerPlugins[cryptoCoin]
+  var cryptoCode = cryptoCoin.unitCode
+  logger.debug('[%s] polling for rates (%s)', cryptoCode, tickerPlugin.NAME)
+  var tickerPlugin = tickerPlugins[cryptoCode]
 
   var currencies = deviceCurrency
   if (typeof currencies === 'string') currencies = [currencies]
 
-  var tickerF = cryptoCoin === 'BTC'
+  var tickerF = cryptoCode === 'BTC'
   ? async.apply(tickerPlugin.ticker, currencies)
   : async.apply(tickerPlugin.ticker, currencies, cryptoCoin)
 
@@ -469,7 +481,7 @@ function pollRate (cryptoCoin, cb) {
 
     logger.debug('got rates: %j', resRates)
     resRates.timestamp = new Date()
-    lastRates[cryptoCoin] = resRates
+    lastRates[cryptoCode] = resRates
 
     return cb && cb(null, lastRates)
   })
@@ -480,16 +492,18 @@ function pollRate (cryptoCoin, cb) {
  */
 
 exports.getDeviceRate = function getDeviceRate (cryptoCoin) {
-  if (!lastRates[cryptoCoin]) return null
+  var cryptoCode = cryptoCoin.unitCode
+  if (!lastRates[cryptoCode]) return null
 
-  var lastRate = lastRates[cryptoCoin]
+  var lastRate = lastRates[cryptoCode]
   if (!lastRate) return null
 
   return lastRate[deviceCurrency]
 }
 
 exports.getBalance = function getBalance (cryptoCoin) {
-  var lastBalance = lastBalances[cryptoCoin]
+  var cryptoCode = cryptoCoin.unitCode
+  var lastBalance = lastBalances[cryptoCode]
   if (!lastBalance) return null
 
   return lastBalance.transferBalance

lib/plugins/kraken.js

@@ -1,47 +0,0 @@
-require('es6-promise').polyfill()
-var axios = require('axios')
-var _ = require('lodash')
-
-var BigNumber = require('bignumber.js')
-BigNumber.config({DECIMAL_PLACES: 40})
-
-exports.NAME = 'Kraken'
-exports.SUPPORTED_MODULES = ['ticker']
-
-exports.config = function config (localConfig) {
-}
-
-function findCurrency (fxRates, currency) {
-  return new BigNumber(_.find(fxRates, function (r) { return r.code === currency }).rate)
-}
-
-exports.ticker = function ticker (currencies, cryptoCoin, callback) {
-  return axios.get('https://bitpay.com/api/rates')
-  .then(function (response) {
-    var fxRates = response.data
-
-    return axios.get('https://api.kraken.com/0/public/Ticker?pair=ETHUSD')
-    .then(function (response2) {
-      var usdRate = findCurrency(fxRates, 'USD')
-      var rates = response2.data.result.XETHZUSD
-      var res = {}
-      var cryptoCoinFactor = new BigNumber(10).pow(cryptoCoin.unitScale)
-
-      currencies.forEach(function (currency) {
-        var fxRate = findCurrency(fxRates, currency).div(usdRate)
-        res[currency] = {
-          ask: fxRate.times(rates.a[0]).div(cryptoCoinFactor),
-          bid: fxRate.times(rates.b[0]).div(cryptoCoinFactor)
-        }
-      })
-
-      callback(null, res)
-    })
-  })
-  .catch(callback)
-}
-
-exports.ticker(['USD', 'ILS', 'EUR'], {unitScale: 18}, function (err, res) {
-  if (err) return console.log(err.stack)
-  console.log(JSON.stringify(res, null, 2))
-})

lib/plugins/web3.js

@@ -1,25 +0,0 @@
-var Web3 = require('web3')
-
-var web3 = new Web3()
-
-if (!web3.isConnected()) {
-  web3.setProvider(new web3.providers.HttpProvider('http://localhost:8545'))
-}
-
-// Note: it's still called sendBitcoins for backwards compatibility, but this
-// is for any currency
-exports.sendBitcoins = function sendBitcoins (address, satoshis, fee, callback) {
-  web3.eth.sendTransaction({
-    to: address,
-    value: satoshis
-  }, callback)
-}
-
-exports.balance = function balance (cb) {
-  var coinbase = web3.eth.coinbase
-  web3.eth.getBalance(coinbase, 'pending', cb)
-}
-
-exports.newAddress = function newAddress (info, callback) {
-  throw new Error('Not implemented')
-}

lib/routes.js

@@ -32,8 +32,9 @@ function buildRates () {
 
   var rates = {}
   cryptoCoins.forEach(function (coin) {
+    var cryptoCode = coin.unitCode
     var rate = plugins.getDeviceRate(coin).rates
-    rates[coin] = {
+    rates[cryptoCode] = {
       cashIn: rate.ask.times(cashInCommission),
       cashOut: rate.bid.div(cashOutCommission)
     }

todo.txt

@@ -0,0 +1,5 @@
+- specify crypto and fiat for trades
+- make sure ticker is in full coins
+- rethink scale names: is unit satoshi or btc?
+- cryptoCoin is record, not code
+- getDeviceRate should return bignumber