Feat: save highVolumeTxs on DB and plugins code refactor

Fix: remove unused module and add space before '('

Chore: add jest tests for transactionNotify

lib/notifier/utils.js

@@ -1,5 +1,7 @@
 const _ = require('lodash/fp')
 const crypto = require('crypto')
+
+const coinUtils = require('../coin-utils')
 const {
   CODES_DISPLAY,
   NETWORK_DOWN_TIME,
@@ -96,6 +98,51 @@ function sendNoAlerts(plugins, smsEnabled, emailEnabled) {
   return plugins.sendMessage(rec)
 }
 
+const buildTransactionMessage = (tx, rec, highValueTx, machineName, customer) => {
+  const isCashOut = tx.direction === 'cashOut'
+  const direction = isCashOut ? 'Cash Out' : 'Cash In'
+  const crypto = `${coinUtils.toUnit(tx.cryptoAtoms, tx.cryptoCode)} ${
+    tx.cryptoCode
+  }`
+  const fiat = `${tx.fiat} ${tx.fiatCode}`
+  const customerName = customer.name || customer.id
+  const phone = customer.phone ? `- Phone: ${customer.phone}` : ''
+
+  let status = null
+  if (rec.error) {
+    status = `Error - ${rec.error}`
+  } else {
+    status = !isCashOut
+      ? 'Successful'
+      : !rec.isRedemption
+      ? 'Successful & awaiting redemption'
+      : 'Successful & dispensed'
+  }
+
+  const body = `
+  - Transaction ID: ${tx.id}
+  - Status: ${status}
+  - Machine name: ${machineName} 
+  - ${direction}
+  - ${fiat}
+  - ${crypto}
+  - Customer: ${customerName}
+  ${phone}
+`
+  const smsSubject = `A ${highValueTx ? 'high value ' : ''}${direction.toLowerCase()} transaction just happened at ${machineName} for ${fiat}`
+  const emailSubject = `A ${highValueTx ? 'high value ' : ''}transaction just happened`
+
+  return [{
+    sms: {
+      body: `${smsSubject} – ${status}`
+    },
+    email: {
+      emailSubject,
+      body
+    }
+  }, highValueTx]
+}
+
 module.exports = {
   codeDisplay,
   parseEventNote,
@@ -107,5 +154,6 @@ module.exports = {
   setAlertFingerprint,
   shouldNotAlert,
   buildAlertFingerprint,
-  sendNoAlerts
+  sendNoAlerts,
+  buildTransactionMessage
 }