From e6ffcacb789eca56f8ac8db70cf0fc9c9833a83c Mon Sep 17 00:00:00 2001
From: Rafael Taranto <rafael.taranto@protonmail.com>
Date: Wed, 28 May 2025 07:11:37 +0100
Subject: [PATCH] feat: reuse last address option

---
 packages/server/lib/customers.js             |  6 ++++++
 packages/server/lib/routes/customerRoutes.js | 20 +++++++++++++++++++-
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/packages/server/lib/customers.js b/packages/server/lib/customers.js
index afb687ae..5e768e6d 100644
--- a/packages/server/lib/customers.js
+++ b/packages/server/lib/customers.js
@@ -1009,6 +1009,11 @@ function addExternalCompliance(customerId, service, id) {
   return db.none(sql, [customerId, id, service])
 }
 
+function getLastUsedAddress(id, cryptoCode) {
+  const sql = `SELECT to_address FROM cash_in_txs WHERE customer_id=$1 AND crypto_code=$2 AND fiat > 0 ORDER BY created DESC LIMIT 1`
+  return db.oneOrNone(sql, [id, cryptoCode]).then(it => it?.to_address)
+}
+
 module.exports = {
   add,
   addWithEmail,
@@ -1035,4 +1040,5 @@ module.exports = {
   updateLastAuthAttempt,
   addExternalCompliance,
   checkExternalCompliance,
+  getLastUsedAddress,
 }
diff --git a/packages/server/lib/routes/customerRoutes.js b/packages/server/lib/routes/customerRoutes.js
index 7e387bf0..b4f8aa55 100644
--- a/packages/server/lib/routes/customerRoutes.js
+++ b/packages/server/lib/routes/customerRoutes.js
@@ -311,7 +311,13 @@ function getExternalComplianceLink(req, res, next) {
     .then(url => respond(req, res, { url }))
 }
 
-function addOrUpdateCustomer(customerData, deviceId, config, isEmailAuth) {
+function addOrUpdateCustomer(
+  customerData,
+  deviceId,
+  config,
+  isEmailAuth,
+  cryptoCode,
+) {
   const triggers = configManager.getTriggers(config)
   const maxDaysThreshold = complianceTriggers.maxDaysThreshold(triggers)
 
@@ -346,6 +352,14 @@ function addOrUpdateCustomer(customerData, deviceId, config, isEmailAuth) {
         .getCustomerActiveIndividualDiscount(customer.id)
         .then(discount => ({ ...customer, discount }))
     })
+    .then(customer => {
+      if (!cryptoCode) return customer
+      return customers
+        .getLastUsedAddress(customer.id, cryptoCode)
+        .then(lastUsedAddress => {
+          return { ...customer, lastUsedAddress }
+        })
+    })
 }
 
 function getOrAddCustomerPhone(req, res, next) {
@@ -354,6 +368,7 @@ function getOrAddCustomerPhone(req, res, next) {
 
   const pi = plugins(req.settings, deviceId)
   const phone = req.body.phone
+  const cryptoCode = req.query.cryptoCode
 
   return pi
     .getPhoneCode(phone)
@@ -363,6 +378,7 @@ function getOrAddCustomerPhone(req, res, next) {
         deviceId,
         req.settings.config,
         false,
+        cryptoCode,
       ).then(customer => respond(req, res, { code, customer }))
     })
     .catch(err => {
@@ -375,6 +391,7 @@ function getOrAddCustomerPhone(req, res, next) {
 function getOrAddCustomerEmail(req, res, next) {
   const deviceId = req.deviceId
   const customerData = req.body
+  const cryptoCode = req.query.cryptoCode
 
   const pi = plugins(req.settings, req.deviceId)
   const email = req.body.email
@@ -387,6 +404,7 @@ function getOrAddCustomerEmail(req, res, next) {
         deviceId,
         req.settings.config,
         true,
+        cryptoCode,
       ).then(customer => respond(req, res, { code, customer }))
     })
     .catch(err => {