From 96ad78425f140ca75cc65cc0230b49c578f4a948 Mon Sep 17 00:00:00 2001
From: Yisroel Baum <yisroel.d.baum@gmail.com>
Date: Fri, 24 Apr 2026 13:17:11 +0300
Subject: [PATCH] reject duplicate email in create user

---
 app/User/UseCases/CreateUser.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/User/UseCases/CreateUser.php b/app/User/UseCases/CreateUser.php
index e2b9b55..cfec430 100644
--- a/app/User/UseCases/CreateUser.php
+++ b/app/User/UseCases/CreateUser.php
@@ -21,8 +21,13 @@ class CreateUser
             throw new BadRequestException('email is required');
         }
 
+        $email = new EmailAddress($dto->email);
+        if ($this->userRepo->findByEmail($email) !== null) {
+            throw new BadRequestException('email already taken');
+        }
+
         $this->userRepo->create(new CreateUserDto(
-            email: new EmailAddress($dto->email),
+            email: $email,
             isAdmin: $dto->isAdmin,
         ));
     }