fix: trade errors out when no exchange is set

lib/commission-math.js

@@ -35,7 +35,6 @@ function getDiscountRate (discount, commission) {
 }
 
 module.exports = {
-  truncateCrypto,
   fiatToCrypto,
   getDiscountRate
 }

lib/plugins.js

@@ -467,6 +467,15 @@ function plugins (settings, deviceId) {
    * Trader functions
    */
 
+  function toMarketString (fiatCode, cryptoCode) {
+    return [fiatCode, cryptoCode].join('-')
+  }
+  
+  function fromMarketString (market) {
+    const [fiatCode, cryptoCode] = market.split('-')
+    return { fiatCode, cryptoCode }
+  }
+
   function buy (rec, tx) {
     return buyAndSell(rec, true, tx)
   }
@@ -477,14 +486,14 @@ function plugins (settings, deviceId) {
 
   function buyAndSell (rec, doBuy, tx) {
     const cryptoCode = rec.cryptoCode
+    if (!exchange.active(settings, cryptoCode)) return
+
     return exchange.fetchExchange(settings, cryptoCode)
       .then(_exchange => {
         const fiatCode = _exchange.account.currencyMarket
         const cryptoAtoms = doBuy ? commissionMath.fiatToCrypto(tx, rec, deviceId, settings.config) : rec.cryptoAtoms.negated()
 
-        const market = [fiatCode, cryptoCode].join('')
+        const market = toMarketString(fiatCode, cryptoCode)
-
-        if (!exchange.active(settings, cryptoCode)) return
 
         const direction = doBuy ? 'cashIn' : 'cashOut'
         const internalTxId = tx ? tx.id : rec.id
@@ -502,7 +511,7 @@ function plugins (settings, deviceId) {
   }
 
   function consolidateTrades (cryptoCode, fiatCode) {
-    const market = [fiatCode, cryptoCode].join('')
+    const market = toMarketString(fiatCode, cryptoCode)
 
     const marketTradesQueues = tradesQueues[market]
     if (!marketTradesQueues || marketTradesQueues.length === 0) return null
@@ -550,35 +559,23 @@ function plugins (settings, deviceId) {
   }
 
   function executeTrades () {
-    return machineLoader.getMachines()
+    const pairs = _.map(fromMarketString)(_.keys(tradesQueues))
-      .then(devices => {
+    pairs.forEach(({ fiatCode, cryptoCode }) => {
-        const deviceIds = devices.map(device => device.deviceId)
+      try {
-        const lists = deviceIds.map(deviceId => {
+        executeTradesForMarket(settings, fiatCode, cryptoCode)
-          const localeConfig = configManager.getLocale(deviceId, settings.config)
+      } catch (err) {
-          const cryptoCodes = localeConfig.cryptoCurrencies
+        logger.error(err)
+      }
+    })
 
-          return Promise.all(cryptoCodes.map(cryptoCode => {
+    // Poller expects a promise
-            return exchange.fetchExchange(settings, cryptoCode)
+    return Promise.resolve()
-              .then(exchange => ({
-                fiatCode: exchange.account.currencyMarket,
-                cryptoCode
-              }))
-          }))
-        })
-        
-        return Promise.all(lists)
-      })
-      .then(lists => {
-        return Promise.all(_.uniq(_.flatten(lists))
-          .map(r => executeTradesForMarket(settings, r.fiatCode, r.cryptoCode)))
-      })
-      .catch(logger.error)
   }
 
   function executeTradesForMarket (settings, fiatCode, cryptoCode) {
     if (!exchange.active(settings, cryptoCode)) return
 
-    const market = [fiatCode, cryptoCode].join('')
+    const market = toMarketString(fiatCode, cryptoCode)
     const tradeEntry = consolidateTrades(cryptoCode, fiatCode)
 
     if (tradeEntry === null || tradeEntry.cryptoAtoms.eq(0)) return