Migrate plugins to lib directory

lib/plugins/exchange/bitstamp/bitstamp.js

@@ -0,0 +1,44 @@
+const common = require('../common/bitstamp')
+
+const SATOSHI_SHIFT = 8
+
+function buy (account, cryptoAtoms, fiatCode, cryptoCode) {
+  return trade('buy', account, cryptoAtoms, fiatCode, cryptoCode)
+}
+
+function sell (account, cryptoAtoms, fiatCode, cryptoCode) {
+  return trade('sell', account, cryptoAtoms, fiatCode, cryptoCode)
+}
+
+function handleErrors (data) {
+  if (!data.reason || !data.reason.__all__) return data
+
+  const err = new Error(data.reason.__all__[0])
+
+  if (data.reason.__all__[0].indexOf('Minimum order size is') === 0) {
+    err.name = 'orderTooSmall'
+  }
+
+  throw err
+}
+
+function trade (type, account, cryptoAtoms, fiatCode, cryptoCode) {
+  try {
+    const market = common.buildMarket(fiatCode, cryptoCode)
+    const options = {amount: cryptoAtoms.shift(-SATOSHI_SHIFT).toFixed(8)}
+
+    return common.authRequest(account, '/' + type + '/market/' + market, options)
+    .catch(e => {
+      if (e.response) handleErrors(e.response.data)
+      throw e
+    })
+    .then(handleErrors)
+  } catch (e) {
+    return Promise.reject(e)
+  }
+}
+
+module.exports = {
+  buy,
+  sell
+}

lib/plugins/exchange/bitstamp/schema.json

@@ -0,0 +1,27 @@
+{
+  "code": "bitstamp",
+  "display": "Bitstamp",
+  "fields": [
+    {
+      "code": "clientId",
+      "display": "Client ID",
+      "fieldType": "string",
+      "required": true,
+      "value": ""
+    },
+    {
+      "code": "key",
+      "display": "API key",
+      "fieldType": "string",
+      "required": true,
+      "value": ""
+    },
+    {
+      "code": "secret",
+      "display": "API secret",
+      "fieldType": "password",
+      "required": true,
+      "value": ""
+    }
+  ]
+}

lib/plugins/exchange/kraken/kraken.js

@@ -0,0 +1,54 @@
+const Kraken = require('kraken-api')
+const coinmath = require('../common/kraken')
+
+var PAIRS = {
+  BTC: {
+    USD: 'XXBTZUSD',
+    EUR: 'XXBTZEUR'
+  },
+  ETH: {
+    USD: 'XETHZUSD',
+    EUR: 'XETHZEUR'
+  }
+}
+
+module.exports = {buy, sell}
+
+function buy (account, cryptoAtoms, fiatCode, cryptoCode) {
+  return trade(account, 'buy', cryptoAtoms, fiatCode, cryptoCode)
+}
+
+function sell (account, cryptoAtoms, fiatCode, cryptoCode) {
+  return trade(account, 'sell', cryptoAtoms, fiatCode, cryptoCode)
+}
+
+function trade (account, type, cryptoAtoms, fiatCode, cryptoCode) {
+  const kraken = new Kraken(account.key, account.secret)
+  const amount = coinmath.toUnit(cryptoAtoms, cryptoCode)
+
+  if (amount.lte('0.01')) {
+    const err = new Error('Order size too small')
+    err.name = 'orderTooSmall'
+    return Promise.reject(err)
+  }
+
+  const amountStr = amount.toFixed(6)
+  const pair = PAIRS[cryptoCode][fiatCode]
+
+  var orderInfo = {
+    pair: pair,
+    type: type,
+    ordertype: 'market',
+    volume: amountStr,
+    expiretm: '+60'
+  }
+
+  kraken.api('AddOrder', orderInfo, function (error, response) {
+    if (error) {
+      // TODO: handle: EOrder:Order minimum not met (volume too low)
+      return Promise.reject(error)
+    } else {
+      return Promise.resolve()
+    }
+  })
+}

lib/plugins/exchange/mock-exchange/mock-exchange.js

@@ -0,0 +1,14 @@
+module.exports = {
+  buy,
+  sell
+}
+
+function buy (account, cryptoAtoms, fiatCode, cryptoCode) {
+  console.log('[mock] buying %s %s for %s', cryptoAtoms.toString(), cryptoCode, fiatCode)
+  return Promise.resolve()
+}
+
+function sell (account, cryptoAtoms, fiatCode, cryptoCode) {
+  console.log('[mock] selling %s %s for %s', cryptoAtoms.toString(), cryptoCode, fiatCode)
+  return Promise.resolve()
+}