From 49b73661879502fdf3b7d1b30d65d323414d5178 Mon Sep 17 00:00:00 2001
From: Matthias Guillitte <matthias@guillitte.com>
Date: Tue, 9 Dec 2025 11:03:36 +0100
Subject: [PATCH] ACS : Only keep one token per card number

---
 src/main/java/acs/acs/src/Main.java         |  2 +-
 src/main/java/acs/acs/src/TokenManager.java | 11 ++++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/main/java/acs/acs/src/Main.java b/src/main/java/acs/acs/src/Main.java
index ad93908..5f42d39 100644
--- a/src/main/java/acs/acs/src/Main.java
+++ b/src/main/java/acs/acs/src/Main.java
@@ -103,7 +103,7 @@ public class Main {
             Logger.displayInfo("Détails de la carte OK");
 
             PrivateKey privateKey = CryptoUtils.getPrivateKey(KEY_STORE_PATH, KEY_STORE_PWD, "acs");
-            String token = tokenManager.generateAndStoreToken();
+            String token = tokenManager.generateAndStoreTokenFor(creditCard.number());
             String signedToken = CryptoUtils.signData(privateKey, token);
 
             Map<String, Object> data = Map.of("token", token, "signature", signedToken);
diff --git a/src/main/java/acs/acs/src/TokenManager.java b/src/main/java/acs/acs/src/TokenManager.java
index 259b6a3..374895f 100644
--- a/src/main/java/acs/acs/src/TokenManager.java
+++ b/src/main/java/acs/acs/src/TokenManager.java
@@ -2,18 +2,19 @@ package acs.acs.src;
 
 import common.common.src.crypto.CryptoUtils;
 
-import java.util.HashSet;
+import java.util.HashMap;
+import java.util.Map;
 
 public class TokenManager {
-    private final HashSet<String> tokens = new HashSet<String>();
+    private final Map<String, String> tokens = new HashMap<String, String>();
 
-    public String generateAndStoreToken() {
+    public String generateAndStoreTokenFor(String cardNumber) {
         String token = CryptoUtils.generateToken();
-        tokens.add(token);
+        tokens.put(cardNumber, token);
         return token;
     }
 
     public boolean isValidToken(String token) {
-        return tokens.contains(token);
+        return tokens.containsValue(token);
     }
 }