From 99d781030830224b42b78e2c5f8a06b435799500 Mon Sep 17 00:00:00 2001
From: Cindy Wang <xinyuew4@andrew.cmu.edu>
Date: Mon, 19 Jan 2026 20:39:09 +0000
Subject: [PATCH 1/4] fix issue

---
 src/user/data.js | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/user/data.js b/src/user/data.js
index cd2326281d..4e31715ad0 100644
--- a/src/user/data.js
+++ b/src/user/data.js
@@ -398,17 +398,27 @@ module.exports = function (User) {
 	};
 
 	User.incrementUserFieldBy = async function (uid, field, value) {
-		return await incrDecrUserFieldBy(uid, field, value, 'increment');
+		return await incrDecrUserFieldBy(uid, field, value);
 	};
 
 	User.decrementUserFieldBy = async function (uid, field, value) {
-		return await incrDecrUserFieldBy(uid, field, -value, 'decrement');
+		return await incrDecrUserFieldBy(uid, field, -value);
 	};
 
-	async function incrDecrUserFieldBy(uid, field, value, type) {
+	async function incrDecrUserFieldBy(uid, field, value) {
 		const prefix = `user${activitypub.helpers.isUri(uid) ? 'Remote' : ''}`;
 		const newValue = await db.incrObjectFieldBy(`${prefix}:${uid}`, field, value);
-		plugins.hooks.fire('action:user.set', { uid: uid, field: field, value: newValue, type: type });
+
+		let type;
+		if (value >= 0) {
+			type = 'increment';
+		} else {
+			type = 'decrement';
+		}
+
+		plugins.hooks.fire('action:user.set', { uid, field, value: newValue, type });
+
 		return newValue;
 	}
+
 };

From 69065659f06952491a388343be79aa2277a80b52 Mon Sep 17 00:00:00 2001
From: Cindy Wang <xinyuew4@andrew.cmu.edu>
Date: Mon, 19 Jan 2026 21:17:47 +0000
Subject: [PATCH 2/4] WIP: add runtime log for incrDecrUserFieldBy manual test

---
 src/user/data.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/user/data.js b/src/user/data.js
index 4e31715ad0..5a7b4bbf9e 100644
--- a/src/user/data.js
+++ b/src/user/data.js
@@ -408,7 +408,7 @@ module.exports = function (User) {
 	async function incrDecrUserFieldBy(uid, field, value) {
 		const prefix = `user${activitypub.helpers.isUri(uid) ? 'Remote' : ''}`;
 		const newValue = await db.incrObjectFieldBy(`${prefix}:${uid}`, field, value);
-
+		console.log('xinyue_wang');
 		let type;
 		if (value >= 0) {
 			type = 'increment';

From a30f9805d94fd3e4eb641b362dad68caa80ebe6a Mon Sep 17 00:00:00 2001
From: Cindy Wang <xinyuew4@andrew.cmu.edu>
Date: Mon, 19 Jan 2026 22:38:36 +0000
Subject: [PATCH 3/4] Refactor (src/user/data.js): reduce parameters in
 incrDecrUserFieldBy

---
 src/user/data.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/user/data.js b/src/user/data.js
index 5a7b4bbf9e..f6016bf469 100644
--- a/src/user/data.js
+++ b/src/user/data.js
@@ -408,7 +408,6 @@ module.exports = function (User) {
 	async function incrDecrUserFieldBy(uid, field, value) {
 		const prefix = `user${activitypub.helpers.isUri(uid) ? 'Remote' : ''}`;
 		const newValue = await db.incrObjectFieldBy(`${prefix}:${uid}`, field, value);
-		console.log('xinyue_wang');
 		let type;
 		if (value >= 0) {
 			type = 'increment';

From 17c31328e0b28c709ec85d80a0a6343f59853a42 Mon Sep 17 00:00:00 2001
From: Cindy Wang <xinyuew4@andrew.cmu.edu>
Date: Mon, 2 Feb 2026 19:48:42 +0000
Subject: [PATCH 4/4] Added username suggestion feature

---
 public/src/client/register.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/public/src/client/register.js b/public/src/client/register.js
index f989901e7b..4accb6add7 100644
--- a/public/src/client/register.js
+++ b/public/src/client/register.js
@@ -135,7 +135,8 @@ define('forum/register', [
 				if (results.every(obj => obj.status === 'rejected')) {
 					showSuccess(usernameInput, username_notify, successIcon);
 				} else {
-					showError(usernameInput, username_notify, '[[error:username-taken]]');
+					var suggestion = username + '123';
+					showError(usernameInput, username_notify, '[[error:username-taken]] Try <b>' + suggestion + '</b>?');
 				}
 
 				callback();