feat: add mock wallet scoring

lib/cash-in/cash-in-low.js

@@ -8,7 +8,7 @@ const E = require('../error')
 
 const PENDING_INTERVAL_MS = 60 * T.minutes
 
-const massageFields = ['direction', 'cryptoNetwork', 'bills', 'blacklisted', 'addressReuse', 'promoCodeApplied']
+const massageFields = ['direction', 'cryptoNetwork', 'bills', 'blacklisted', 'addressReuse', 'promoCodeApplied', 'failedWalletScore']
 const massageUpdateFields = _.concat(massageFields, 'cryptoAtoms')
 
 const massage = _.flow(_.omit(massageFields),

lib/cash-in/cash-in-tx.js

@@ -15,6 +15,7 @@ const cashInLow = require('./cash-in-low')
 
 const PENDING_INTERVAL = '60 minutes'
 const MAX_PENDING = 10
+const WALLET_SCORE_THRESHOLD = 10
 
 const TRANSACTION_STATES = `
 case
@@ -33,11 +34,14 @@ function post (machineTx, pi) {
       const updatedTx = r.tx
       let blacklisted = false
       let addressReuse = false
+      let failedWalletScore = false
 
-      return Promise.all([settingsLoader.loadLatest(), checkForBlacklisted(updatedTx), doesTxReuseAddress(updatedTx)])
-        .then(([{ config }, blacklistItems, isReusedAddress]) => {
+      return Promise.all([settingsLoader.loadLatest(), checkForBlacklisted(updatedTx), doesTxReuseAddress(updatedTx), doesWalletScoreFail(updatedTx, pi)])
+        .then(([{ config }, blacklistItems, isReusedAddress, walletScoreFailed]) => {
           const rejectAddressReuse = configManager.getCompliance(config).rejectAddressReuse
 
+          failedWalletScore = walletScoreFailed
+
           if (_.some(it => it.address === updatedTx.toAddress)(blacklistItems)) {
             blacklisted = true
             notifier.notifyIfActive('compliance', 'blacklistNotify', r.tx, false)
@@ -45,12 +49,13 @@ function post (machineTx, pi) {
             notifier.notifyIfActive('compliance', 'blacklistNotify', r.tx, true)
             addressReuse = true
           }
-          return postProcess(r, pi, blacklisted, addressReuse)
+          return postProcess(r, pi, blacklisted, addressReuse, failedWalletScore)
         })
         .then(changes => cashInLow.update(db, updatedTx, changes))
         .then(tx => _.set('bills', machineTx.bills, tx))
         .then(tx => _.set('blacklisted', blacklisted, tx))
         .then(tx => _.set('addressReuse', addressReuse, tx))
+        .then(tx => _.set('failedWalletScore', failedWalletScore, tx))
     })
 }
 
@@ -88,7 +93,7 @@ function checkForBlacklisted (tx) {
   return Promise.resolve(false)
 }
 
-function postProcess (r, pi, isBlacklisted, addressReuse) {
+function postProcess (r, pi, isBlacklisted, addressReuse, failedWalletScore) {
   if (addressReuse) {
     return Promise.resolve({
       operatorCompleted: true,
@@ -103,6 +108,13 @@ function postProcess (r, pi, isBlacklisted, addressReuse) {
     })
   }
 
+  if (failedWalletScore) {
+    return Promise.resolve({
+      operatorCompleted: true,
+      error: 'Failed wallet score'
+    })
+  }
+
   registerTrades(pi, r)
 
   if (!cashInLow.isClearToSend(r.dbTx, r.tx)) return Promise.resolve({})
@@ -147,6 +159,14 @@ function doesTxReuseAddress (tx) {
   return Promise.resolve(false)
 }
 
+function doesWalletScoreFail (tx, pi) {
+  if (!tx.fiat || tx.fiat.isZero()) {
+    return pi.rateWallet(tx.toAddress)
+      .then(res => res >= WALLET_SCORE_THRESHOLD)
+  }
+  return Promise.resolve(false)
+}
+
 function monitorPending (settings) {
   const sql = `select * from cash_in_txs
   where created > now() - interval $1

lib/plugin-helper.js

@@ -7,6 +7,7 @@ const pluginCodes = {
   TICKER: 'ticker',
   EXCHANGE: 'exchange',
   WALLET: 'wallet',
+  WALLET_SCORING: 'wallet-scoring',
   LAYER2: 'layer2',
   SMS: 'sms',
   EMAIL: 'email',

lib/plugins.js

@@ -13,6 +13,7 @@ const T = require('./time')
 const configManager = require('./new-config-manager')
 const ticker = require('./ticker')
 const wallet = require('./wallet')
+const walletScoring = require('./wallet-scoring')
 const exchange = require('./exchange')
 const sms = require('./sms')
 const email = require('./email')
@@ -776,6 +777,11 @@ function plugins (settings, deviceId) {
       .then(buildRates)
   }
 
+  function rateWallet (address) {
+    return walletScoring.rateWallet(settings, address)
+      .then(res => res.rating)
+  }
+
   return {
     getRates,
     buildRates,
@@ -803,7 +809,8 @@ function plugins (settings, deviceId) {
     getNotificationConfig,
     notifyOperator,
     fetchCurrentConfigVersion,
-    pruneMachinesHeartbeat
+    pruneMachinesHeartbeat,
+    rateWallet
   }
 }
 

lib/plugins/wallet-scoring/mock-scoring/mock-scoring.js

@@ -0,0 +1,15 @@
+const NAME = 'FakeScoring'
+
+function rateWallet (account, address) {
+  return new Promise((resolve, _) => {
+    setTimeout(() => {
+      console.log('[WALLET-SCORING] DEBUG: Mock scoring rating wallet address %s', address)
+      return resolve({ address, rating: 5 })
+    }, 100)
+  })
+}
+
+module.exports = {
+  NAME,
+  rateWallet
+}

lib/wallet-scoring.js

@@ -0,0 +1,27 @@
+const ph = require('./plugin-helper')
+const _ = require('lodash/fp')
+const argv = require('minimist')(process.argv.slice(2))
+
+function loadWalletScoring (settings) {
+  if (_.isNil(argv.mockScoring)) {
+    throw new Error('No wallet scoring API set!')
+  }
+  const pluginCode = argv.mockScoring ? 'mock-scoring' : ''
+  const plugin = ph.load(ph.WALLET_SCORING, pluginCode)
+  const account = settings.accounts[pluginCode]
+
+  return { plugin, account }
+}
+
+function rateWallet (settings, address) {
+  return Promise.resolve()
+    .then(() => {
+      const { plugin, account } = loadWalletScoring(settings)
+
+      return plugin.rateWallet(account, address)
+    })
+}
+
+module.exports = {
+  rateWallet
+}