feat: ability to update display name and username in profile settings

src/app/api/auth/display-name/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest, NextResponse } from "next/server";
+
+import { auth } from "@/lib/auth";
+import { prisma } from "@/lib/prisma";
+import { displayNameSchema } from "@/lib/schemas";
+
+export async function PATCH(request: NextRequest) {
+	const session = await auth();
+	if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+
+	const { displayName } = await request.json();
+	if (!displayName) return NextResponse.json({ error: "New display name is required" }, { status: 400 });
+
+	const validation = displayNameSchema.safeParse(displayName);
+	if (!validation.success) return NextResponse.json({ error: validation.error.errors[0].message }, { status: 400 });
+
+	try {
+		await prisma.user.update({
+			where: { email: session.user?.email ?? undefined },
+			data: { name: displayName },
+		});
+	} catch (error) {
+		console.error("Failed to update display name:", error);
+		return NextResponse.json({ error: "Failed to update display name" }, { status: 500 });
+	}
+
+	return NextResponse.json({ success: true });
+}

src/app/api/auth/username/route.ts

@@ -1,21 +1,15 @@
 import { NextRequest, NextResponse } from "next/server";
-import { z } from "zod";
 
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
-
-const usernameSchema = z
-	.string()
-	.min(3, "Username must be at least 3 characters long")
-	.max(20, "Username cannot be more than 20 characters long")
-	.regex(/^[a-zA-Z0-9_]+$/, "Username can only contain letters, numbers, and underscores");
+import { usernameSchema } from "@/lib/schemas";
 
 export async function PATCH(request: NextRequest) {
 	const session = await auth();
 	if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
 
 	const { username } = await request.json();
-	if (!username) return NextResponse.json({ error: "Username is required" }, { status: 400 });
+	if (!username) return NextResponse.json({ error: "New username is required" }, { status: 400 });
 
 	const validation = usernameSchema.safeParse(username);
 	if (!validation.success) return NextResponse.json({ error: validation.error.errors[0].message }, { status: 400 });

src/app/components/delete-mii.tsx

@@ -29,7 +29,7 @@ export default function DeleteMiiButton({ miiId, miiName, likes }: Props) {
 		}
 
 		close();
-		window.location.reload(); // I would use router.refresh() here but the API data fetching breaks
+		window.location.reload(); // I would use router.refresh() here but the Mii list doesn't update
 	};
 
 	const close = () => {

src/app/components/profile-settings/index.tsx

@@ -1,23 +1,76 @@
 "use client";
 
+import { useRouter } from "next/navigation";
+
 import { useState } from "react";
 import SubmitDialogButton from "./submit-dialog-button";
 import DeleteAccount from "./delete-account";
 
-interface Props {
-	name: string | null | undefined;
-	username: string | null | undefined;
-}
+import { displayNameSchema, usernameSchema } from "@/lib/schemas";
+import dayjs from "dayjs";
 
-export default function ProfileSettings({ name, username }: Props) {
-	const [displayName, setDisplayName] = useState(name ?? "");
-	const [usernameState, setUsernameState] = useState(username ?? "");
+export default function ProfileSettings() {
+	const router = useRouter();
+
+	const [displayName, setDisplayName] = useState("");
+	const [username, setUsername] = useState("");
+
+	const [displayNameChangeError, setDisplayNameChangeError] = useState<string | undefined>(undefined);
+	const [usernameChangeError, setUsernameChangeError] = useState<string | undefined>(undefined);
+
+	const usernameDate = dayjs().add(90, "days");
+
+	const handleSubmitDisplayNameChange = async (close: () => void) => {
+		const parsed = displayNameSchema.safeParse(displayName);
+		if (!parsed.success) {
+			setDisplayNameChangeError(parsed.error.errors[0].message);
+			return;
+		}
+
+		const response = await fetch("/api/auth/display-name", {
+			method: "PATCH",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ displayName }),
+		});
+
+		if (!response.ok) {
+			const { error } = await response.json();
+			setDisplayNameChangeError(error);
+			return;
+		}
+
+		close();
+		router.refresh();
+	};
+
+	const handleSubmitUsernameChange = async (close: () => void) => {
+		const parsed = usernameSchema.safeParse(username);
+		if (!parsed.success) {
+			setUsernameChangeError(parsed.error.errors[0].message);
+			return;
+		}
+
+		const response = await fetch("/api/auth/username", {
+			method: "PATCH",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ username }),
+		});
+
+		if (!response.ok) {
+			const { error } = await response.json();
+			setUsernameChangeError(error);
+			return;
+		}
+
+		close();
+		router.refresh();
+	};
 
 	return (
 		<div className="bg-amber-50 border-2 border-amber-500 rounded-2xl p-4 flex flex-col gap-4">
 			<div>
 				<h2 className="text-2xl font-bold">Profile Settings</h2>
-				<p className="text-sm text-zinc-500">Update your account info, username, and preferences.</p>
+				<p className="text-sm text-zinc-500">Update your account info, and username.</p>
 			</div>
 
 			{/* Separator */}
@@ -37,15 +90,22 @@ export default function ProfileSettings({ name, username }: Props) {
 				</div>
 
 				<div className="flex justify-end gap-1">
-					<input type="text" className="pill input w-full max-w-64" value={displayName} onChange={(e) => setDisplayName(e.target.value)} />
+					<input
+						type="text"
+						className="pill input w-full max-w-64"
+						placeholder="Type here..."
+						value={displayName}
+						onChange={(e) => setDisplayName(e.target.value)}
+					/>
 					<SubmitDialogButton
 						title="Confirm Display Name Change"
 						description="Update your display name? This will only be visible on your profile. You can change it again later."
-						onSubmit={() => {}}
+						error={displayNameChangeError}
+						onSubmit={handleSubmitDisplayNameChange}
 					>
 						<div className="bg-orange-100 rounded-xl border-2 border-orange-400 mt-4 px-2 py-1">
 							<p className="font-semibold">New display name:</p>
-							<p className="indent-4">"{name}"</p>
+							<p className="indent-4">'{displayName}'</p>
 						</div>
 					</SubmitDialogButton>
 				</div>
@@ -65,19 +125,26 @@ export default function ProfileSettings({ name, username }: Props) {
 						<input
 							type="text"
 							className="pill input w-full max-w-64 indent-4"
-							value={usernameState}
-							onChange={(e) => setUsernameState(e.target.value)}
+							placeholder="Type here..."
+							value={username}
+							onChange={(e) => setUsername(e.target.value)}
 						/>
 						<span className="absolute top-1/2 -translate-y-1/2 left-4 select-none">@</span>
 					</div>
 					<SubmitDialogButton
 						title="Confirm Username Change"
 						description="Are you sure? Your username is your unique indentifier and can only be changed every 90 days."
-						onSubmit={() => {}}
+						error={usernameChangeError}
+						onSubmit={handleSubmitUsernameChange}
 					>
+						<p className="text-sm text-zinc-500 mt-2">
+							After submitting, you can change it again on{" "}
+							{usernameDate.toDate().toLocaleDateString("en-US", { month: "long", day: "numeric", year: "numeric" })}.
+						</p>
+
 						<div className="bg-orange-100 rounded-xl border-2 border-orange-400 mt-4 px-2 py-1">
 							<p className="font-semibold">New username:</p>
-							<p className="indent-4">"@{usernameState}"</p>
+							<p className="indent-4">'@{username}'</p>
 						</div>
 					</SubmitDialogButton>
 				</div>

src/app/components/profile-settings/submit-dialog-button.tsx

@@ -7,7 +7,7 @@ import { Icon } from "@iconify/react";
 interface Props {
 	title: string;
 	description: string;
-	onSubmit: () => void;
+	onSubmit: (close: () => void) => void;
 	error?: string;
 	children?: React.ReactNode;
 }
@@ -17,9 +17,7 @@ export default function SubmitDialogButton({ title, description, onSubmit, error
 	const [isVisible, setIsVisible] = useState(false);
 
 	const submit = () => {
-		onSubmit();
-		close();
-		window.location.reload(); // I would use router.refresh() here but the API data fetching breaks
+		onSubmit(close);
 	};
 
 	const close = () => {

src/app/components/username-form.tsx

@@ -2,6 +2,7 @@
 
 import { FormEvent, useState } from "react";
 import { redirect } from "next/navigation";
+import { usernameSchema } from "@/lib/schemas";
 
 export default function UsernameForm() {
 	const [username, setUsername] = useState("");
@@ -10,6 +11,9 @@ export default function UsernameForm() {
 	const handleSubmit = async (event: FormEvent) => {
 		event.preventDefault();
 
+		const parsed = usernameSchema.safeParse(username);
+		if (!parsed.success) setError(parsed.error.errors[0].message);
+
 		const response = await fetch("/api/auth/username", {
 			method: "PATCH",
 			headers: { "Content-Type": "application/json" },

src/app/profile/settings/page.tsx

@@ -46,7 +46,7 @@ export default async function ProfileSettingsPage() {
 				</div>
 			</div>
 
-			<ProfileSettings name={session.user.name} username={session.user.username} />
+			<ProfileSettings />
 		</div>
 	);
 }