From f56a93a1b23c03e036312eb3ac803a35e1a7666a Mon Sep 17 00:00:00 2001
From: Bennett <contact@bennettsh.de>
Date: Mon, 19 May 2025 18:19:55 +0200
Subject: [PATCH] Update src/index.tsx

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>
---
 src/index.tsx | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/index.tsx b/src/index.tsx
index 3d9b47e..002c454 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -599,6 +599,14 @@ const app = new Elysia({
       const values = [];
 
       if (body.email) {
+        // Enforce unique email constraint
+        const existingUser = await db.query(
+          "SELECT id FROM users WHERE email = ?",
+        ).get(body.email);
+        if (existingUser && existingUser.id !== user.id) {
+          set.status = 409;
+          return { message: "Email already in use." };
+        }
         fields.push("email");
         values.push(body.email);
       }