From 3d6be163e83bcc08557ce7234013335ce9039b7f Mon Sep 17 00:00:00 2001
From: Rafi Arrafif <rafiarrafif05@gmail.com>
Date: Sat, 11 Oct 2025 01:34:20 +0700
Subject: [PATCH] :triangular_flag_on_post: (flags) add username generator

generate username from full name and combine with random string.
---
 features/auth/lib/submitRegisterForm.ts | 12 ++++++++++++
 shared/helper/generateRandomString.ts   |  7 +++++++
 2 files changed, 19 insertions(+)
 create mode 100644 shared/helper/generateRandomString.ts

diff --git a/features/auth/lib/submitRegisterForm.ts b/features/auth/lib/submitRegisterForm.ts
index 6ddcd47..e0e9c7b 100644
--- a/features/auth/lib/submitRegisterForm.ts
+++ b/features/auth/lib/submitRegisterForm.ts
@@ -3,6 +3,7 @@
 import { apiErrorHandler } from "@/shared/lib/ky/errorHandler";
 import { RegisterInputs } from "../ui/components/ProvisionInput";
 import { ServerRequestCallback } from "@/shared/types/ServerRequestCallback";
+import { generateRandomString } from "@/shared/helper/generateRandomString";
 
 export const submitRegisterForm = async (
   data: RegisterInputs
@@ -15,6 +16,17 @@ export const submitRegisterForm = async (
     });
 
   try {
+    console.log({
+      ...data,
+      username:
+        data.fullname
+          .trim()
+          .split(" ")[0]
+          .toLowerCase()
+          .substring(0, 5) +
+        "_" +
+        generateRandomString(10),
+    });
     await new Promise((resolve) => setTimeout(resolve, 3000));
     return {
       success: true,
diff --git a/shared/helper/generateRandomString.ts b/shared/helper/generateRandomString.ts
new file mode 100644
index 0000000..3890f62
--- /dev/null
+++ b/shared/helper/generateRandomString.ts
@@ -0,0 +1,7 @@
+import { customAlphabet } from "nanoid";
+
+export const generateRandomString = (length: number = 10): string => {
+  const characters =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+  return customAlphabet(characters, length)();
+};