removed admin-util

src/services/admin/admin-router.ts

@@ -4,7 +4,7 @@ import { Database } from "../../database";
 import RoleChecker from "../../middleware/role-checker";
 import { Role } from "../auth/auth-models";
 import dotenv from "dotenv";
-import { validateQrHash } from "./admin-utils";
+import { validateQrHash } from "../attendees/attendees-utils";
 
 
 const adminRouter = Router();

src/services/attendees/attendees-utils.ts

@@ -16,3 +16,16 @@ export function generateQrHash(userId: string, expTime: number) {
 
     return `${hashStr}#${expTime}#${userId}`;
 }
+
+export function validateQrHash(qrCode: string) {
+    const parts = qrCode.split("#");
+    const userId = parts[2];
+    const expTime = parseInt(parts[1]);
+    const generatedHash = generateQrHash(userId, expTime);
+
+    if (generatedHash.split("#")[0] !== parts[0]) {
+        throw new Error("Invalid QR code");
+    }
+
+    return { userId, expTime };
+}