refactor: cleanup - schema edition

whole bunch of refactors (especially with schemas)

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

@@ -1,4 +1,4 @@
-import { NextResponse } from "next/server";
+import { NextRequest, NextResponse } from "next/server";
 import { z } from "zod";
 
 import { auth } from "@/lib/auth";
@@ -10,7 +10,7 @@ const usernameSchema = z
 	.max(20, "Username cannot be more than 20 characters long")
 	.regex(/^[a-zA-Z0-9_]+$/, "Username can only contain letters, numbers, and underscores");
 
-export async function PATCH(request: Request) {
+export async function PATCH(request: NextRequest) {
 	const session = await auth();
 	if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
 

src/app/api/like/route.ts

@@ -1,16 +1,24 @@
-import { NextResponse } from "next/server";
+import { NextRequest, NextResponse } from "next/server";
+import { z } from "zod";
 
 import { auth } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
 
-export async function PATCH(request: Request) {
+const likeSchema = z.object({
+	miiId: z.coerce.number().int({ message: "Mii ID must be an integer" }).positive({ message: "Mii ID must be valid" }),
+});
+
+export async function PATCH(request: NextRequest) {
 	// todo: rate limit
 
 	const session = await auth();
 	if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
 
-	const { miiId } = await request.json();
+	const body = await request.json();
-	if (!miiId) return NextResponse.json({ error: "Mii ID is required" }, { status: 400 });
+	const parsed = likeSchema.safeParse(body);
+
+	if (!parsed.success) return NextResponse.json({ error: parsed.error.errors[0].message }, { status: 400 });
+	const { miiId } = parsed.data;
 
 	const result = await prisma.$transaction(async (tx) => {
 		const existingLike = await tx.like.findUnique({

src/app/api/submit/route.ts

@@ -1,4 +1,5 @@
 import { NextResponse } from "next/server";
+import { z } from "zod";
 
 import fs from "fs/promises";
 import path from "path";
@@ -17,31 +18,33 @@ import TomodachiLifeMii from "@/lib/tomodachi-life-mii";
 
 const uploadsDirectory = path.join(process.cwd(), "public", "mii");
 
+const submitSchema = z.object({
+	name: nameSchema,
+	tags: tagsSchema,
+	qrBytesRaw: z
+		.array(z.number(), { required_error: "A QR code is required" })
+		.length(372, { message: "QR code size is not a valid Tomodachi Life QR code" }),
+	image1: z.instanceof(File).optional(),
+	image2: z.instanceof(File).optional(),
+	image3: z.instanceof(File).optional(),
+});
+
 export async function POST(request: Request) {
 	const session = await auth();
 	if (!session) return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
 
 	const formData = await request.formData();
+	const parsed = submitSchema.safeParse({
+		name: formData.get("name"),
+		tags: JSON.parse(formData.get("tags") as string),
+		qrBytesRaw: JSON.parse(formData.get("qrBytesRaw") as string),
+		image1: formData.get("image1"),
+		image2: formData.get("image2"),
+		image3: formData.get("image3"),
+	});
 
-	const name = formData.get("name") as string;
+	if (!parsed.success) return NextResponse.json({ error: parsed.error.errors[0].message }, { status: 400 });
-	const tags: string[] = JSON.parse(formData.get("tags") as string);
+	const { name, tags, qrBytesRaw, image1, image2, image3 } = parsed.data;
-	const qrBytesRaw: number[] = JSON.parse(formData.get("qrBytesRaw") as string);
-
-	const image1 = formData.get("image1") as File;
-	const image2 = formData.get("image2") as File;
-	const image3 = formData.get("image3") as File;
-
-	if (!name) return NextResponse.json({ error: "Name is required" }, { status: 400 });
-	if (!tags || tags.length == 0) return NextResponse.json({ error: "At least one tag is required" }, { status: 400 });
-	if (!qrBytesRaw || qrBytesRaw.length == 0) return NextResponse.json({ error: "A QR code is required" }, { status: 400 });
-
-	const nameValidation = nameSchema.safeParse(name);
-	if (!nameValidation.success) return NextResponse.json({ error: nameValidation.error.errors[0].message }, { status: 400 });
-
-	const tagsValidation = tagsSchema.safeParse(tags);
-	if (!tagsValidation.success) return NextResponse.json({ error: tagsValidation.error.errors[0].message }, { status: 400 });
-
-	if (qrBytesRaw.length !== 372) return NextResponse.json({ error: "QR code size is not a valid Tomodachi Life QR code" }, { status: 400 });
 
 	// Validate image files
 	const images: File[] = [];

src/app/components/mii-list/index.tsx

@@ -40,7 +40,6 @@ export default async function MiiList({ searchParams, userId, where }: Props) {
 			: [];
 	const whereTags = tagFilter.length > 0 ? { tags: { hasEvery: tagFilter } } : undefined;
 
-	// If the mii list is on a user's profile, don't query for the username
 	const userInclude =
 		userId == null
 			? {

src/app/components/search-bar.tsx

@@ -3,20 +3,13 @@
 import { useState } from "react";
 import { Icon } from "@iconify/react";
 import { redirect } from "next/navigation";
-import { z } from "zod";
+import { nameSchema } from "@/lib/schemas";
-
-const searchSchema = z
-	.string()
-	.trim()
-	.min(2)
-	.max(64)
-	.regex(/^[a-zA-Z0-9_]+$/);
 
 export default function SearchBar() {
 	const [query, setQuery] = useState("");
 
 	const handleSearch = () => {
-		const result = searchSchema.safeParse(query);
+		const result = nameSchema.safeParse(query);
 		if (!result.success) redirect("/");
 
 		redirect(`/search?q=${query}`);

src/app/components/tag-selector.tsx

@@ -9,7 +9,7 @@ interface Props {
 	setTags: React.Dispatch<React.SetStateAction<string[]>>;
 }
 
-const tagRegex = /^[a-z-]*$/;
+const tagRegex = /^[a-z0-9-_]*$/;
 const predefinedTags = ["anime", "art", "cartoon", "celebrity", "games", "history", "meme", "movie", "oc", "tv"];
 
 export default function TagSelector({ tags, setTags }: Props) {

src/lib/schemas.ts

@@ -2,6 +2,7 @@ import { z } from "zod";
 
 export const nameSchema = z
 	.string()
+	.trim()
 	.min(2, { message: "Name must be at least 2 characters long" })
 	.max(64, { message: "Name cannot be more than 64 characters long" })
 	.regex(/^[a-zA-Z0-9-_. ']+$/, {