From e3d0d7e212e09225981ef73aaf9255a382b4df0a Mon Sep 17 00:00:00 2001
From: Tangem <git@tangem.com>
Date: Fri, 4 Dec 2020 11:48:21 +0300
Subject: [PATCH] Updated on 2026-08-14

---
 .../tangem/tap/domain/twins/TwinsHelper.kt    | 20 +++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/tangem/tap/domain/twins/TwinsHelper.kt b/app/src/main/java/com/tangem/tap/domain/twins/TwinsHelper.kt
index ddb6d6854b..7492bca931 100644
--- a/app/src/main/java/com/tangem/tap/domain/twins/TwinsHelper.kt
+++ b/app/src/main/java/com/tangem/tap/domain/twins/TwinsHelper.kt
@@ -8,10 +8,10 @@ class TwinsHelper {
 
         fun getTwinCardNumber(cardId: String): TwinCardNumber? {
             return when {
-                firstCardBatches.map { cardId.startsWith(it) }.contains(true) -> {
+                firstCardSeries.map { cardId.startsWith(it) }.contains(true) -> {
                     TwinCardNumber.First
                 }
-                secondCardBatches.map { cardId.startsWith(it) }.contains(true) -> {
+                secondCardSeries.map { cardId.startsWith(it) }.contains(true) -> {
                     TwinCardNumber.Second
                 }
                 else -> {
@@ -21,23 +21,23 @@ class TwinsHelper {
         }
 
         fun getTwinsCardId(cardId: String): String? {
-            val cardIdWithNewBatch = when (getTwinCardNumber(cardId) ?: return null) {
+            val cardIdWithNewSeries = when (getTwinCardNumber(cardId) ?: return null) {
                 TwinCardNumber.First -> {
-                    val batchIndex = if (cardId.startsWith(firstCardBatches[1])) 1 else 2
-                    cardId.replace(firstCardBatches[batchIndex], secondCardBatches[batchIndex])
+                    val index = if (cardId.startsWith(firstCardSeries[0])) 0 else 1
+                    cardId.replace(firstCardSeries[index], secondCardSeries[index])
                 }
                 TwinCardNumber.Second -> {
-                    val batchIndex = if (cardId.startsWith(secondCardBatches[1])) 1 else 2
-                    cardId.replace(secondCardBatches[batchIndex], firstCardBatches[batchIndex])
+                    val index = if (cardId.startsWith(secondCardSeries[0])) 0 else 1
+                    cardId.replace(secondCardSeries[index], firstCardSeries[index])
                 }
             }
-            val cardIdWithoutChecksum = cardIdWithNewBatch.dropLast(1)
+            val cardIdWithoutChecksum = cardIdWithNewSeries.dropLast(1)
             val checkSum = cardIdWithoutChecksum.calculateLuhn()
             return cardIdWithoutChecksum + checkSum
         }
 
-        private val firstCardBatches = listOf("CB61", "CB64")
-        private val secondCardBatches = listOf("CB62", "CB65")
+        private val firstCardSeries = listOf("CB61", "CB64")
+        private val secondCardSeries = listOf("CB62", "CB65")
     }
 }