From cada748f2d5bcd088c3572de75b814d61d7c314d Mon Sep 17 00:00:00 2001
From: trafficlunar <hello@trafficlunar.net>
Date: Sun, 13 Apr 2025 20:00:33 +0100
Subject: [PATCH] feat: pagination

---
 src/app/api/mii/list/route.ts              |  5 +-
 src/app/components/mii-list/index.tsx      |  4 +
 src/app/components/mii-list/pagination.tsx | 92 ++++++++++++++++++++++
 3 files changed, 99 insertions(+), 2 deletions(-)
 create mode 100644 src/app/components/mii-list/pagination.tsx

diff --git a/src/app/api/mii/list/route.ts b/src/app/api/mii/list/route.ts
index cbe477f..3b044c5 100644
--- a/src/app/api/mii/list/route.ts
+++ b/src/app/api/mii/list/route.ts
@@ -45,7 +45,7 @@ export async function GET(request: NextRequest) {
 	const parsed = searchSchema.safeParse(Object.fromEntries(request.nextUrl.searchParams));
 	if (!parsed.success) return NextResponse.json({ error: parsed.error.errors[0].message }, { status: 400 });
 
-	const { q: query, sort, tags, userId, page = 1, limit = 20 } = parsed.data;
+	const { q: query, sort, tags, userId, page = 1, limit = 24 } = parsed.data;
 
 	const where: Prisma.MiiWhereInput = {
 		// Searching
@@ -92,7 +92,7 @@ export async function GET(request: NextRequest) {
 	const skip = (page - 1) * limit;
 
 	const [totalCount, filteredCount, list] = await Promise.all([
-		prisma.mii.count({ where: userId ? { userId } : {} }),
+		prisma.mii.count({ where: { ...where, userId } }),
 		prisma.mii.count({ where, skip, take: limit }),
 		prisma.mii.findMany({ where, orderBy, select, skip: (page - 1) * limit, take: limit }),
 	]);
@@ -100,6 +100,7 @@ export async function GET(request: NextRequest) {
 	return NextResponse.json({
 		total: totalCount,
 		filtered: filteredCount,
+		lastPage: Math.ceil(totalCount / limit),
 		miis: list.map(({ _count, likedBy, ...rest }) => ({
 			...rest,
 			likes: _count.likedBy,
diff --git a/src/app/components/mii-list/index.tsx b/src/app/components/mii-list/index.tsx
index 13e8154..4fde6d1 100644
--- a/src/app/components/mii-list/index.tsx
+++ b/src/app/components/mii-list/index.tsx
@@ -8,6 +8,7 @@ import SortSelect from "./sort-select";
 import Carousel from "../carousel";
 import LikeButton from "../like-button";
 import FilterSelect from "./filter-select";
+import Pagination from "./pagination";
 
 interface Props {
 	isLoggedIn: boolean;
@@ -18,6 +19,7 @@ interface Props {
 interface ApiResponse {
 	total: number;
 	filtered: number;
+	lastPage: number;
 	miis: {
 		id: number;
 		user?: {
@@ -131,6 +133,8 @@ export default function MiiList({ isLoggedIn, userId }: Props) {
 			) : (
 				<>{error && <p className="text-xl text-red-400 font-semibold text-center mt-10">Error: {error}</p>}</>
 			)}
+
+			{data && <Pagination lastPage={data.lastPage} />}
 		</div>
 	);
 }
diff --git a/src/app/components/mii-list/pagination.tsx b/src/app/components/mii-list/pagination.tsx
new file mode 100644
index 0000000..e0793a9
--- /dev/null
+++ b/src/app/components/mii-list/pagination.tsx
@@ -0,0 +1,92 @@
+"use client";
+
+import { redirect, useSearchParams } from "next/navigation";
+import Link from "next/link";
+
+import { useEffect, useMemo, useState } from "react";
+import { Icon } from "@iconify/react";
+
+interface Props {
+	lastPage: number;
+}
+
+export default function Pagination({ lastPage }: Props) {
+	const searchParams = useSearchParams();
+	const page = Number(searchParams.get("page") ?? 1);
+
+	const numbers = useMemo(() => {
+		const result = [];
+
+		// Always show 5 pages, centering around the current page when possible
+		const start = Math.max(1, Math.min(page - 2, lastPage - 4));
+		const end = Math.min(lastPage, start + 4);
+
+		for (let i = start; i <= end; i++) result.push(i);
+
+		return result;
+	}, [page, lastPage]);
+
+	return (
+		<div className="flex justify-center items-center w-full mt-8">
+			{/* Go to first page */}
+			<Link
+				href={page === 1 ? "#" : "/?page=1"}
+				aria-disabled={page === 1}
+				tabIndex={page === 1 ? -1 : undefined}
+				className={`pill button !bg-orange-100 !p-0.5 aspect-square text-2xl ${
+					page === 1 ? "pointer-events-none opacity-50" : "hover:!bg-orange-400"
+				}`}
+			>
+				<Icon icon="stash:chevron-double-left" />
+			</Link>
+
+			{/* Previous page */}
+			<Link
+				href={page === 1 ? "#" : `/?page=${page - 1}`}
+				aria-disabled={page === 1}
+				tabIndex={page === 1 ? -1 : undefined}
+				className={`pill !bg-orange-100 !p-0.5 aspect-square text-2xl ${page === 1 ? "pointer-events-none opacity-50" : "hover:!bg-orange-400"}`}
+			>
+				<Icon icon="stash:chevron-left" />
+			</Link>
+
+			{/* Page numbers */}
+			<div className="flex mx-2">
+				{numbers.map((number) => (
+					<Link
+						key={number}
+						href={`/?page=${number}`}
+						aria-current={number === page ? "page" : undefined}
+						className={`pill !p-0 w-8 h-8 text-center !rounded-md ${number == page ? "!bg-orange-400" : "!bg-orange-100 hover:!bg-orange-400"}`}
+					>
+						{number}
+					</Link>
+				))}
+			</div>
+
+			{/* Next page */}
+			<Link
+				href={page === lastPage ? "#" : `/?page=${page + 1}`}
+				aria-disabled={page === lastPage}
+				tabIndex={page === lastPage ? -1 : undefined}
+				className={`pill button !bg-orange-100 !p-0.5 aspect-square text-2xl ${
+					page === lastPage ? "pointer-events-none opacity-50" : "hover:!bg-orange-400"
+				}`}
+			>
+				<Icon icon="stash:chevron-right" />
+			</Link>
+
+			{/* Go to last page */}
+			<Link
+				href={page === lastPage ? "#" : `/?page=${lastPage}`}
+				aria-disabled={page === lastPage}
+				tabIndex={page === lastPage ? -1 : undefined}
+				className={`pill button !bg-orange-100 !p-0.5 aspect-square text-2xl ${
+					page === lastPage ? "pointer-events-none opacity-50" : "hover:!bg-orange-400"
+				}`}
+			>
+				<Icon icon="stash:chevron-double-right" />
+			</Link>
+		</div>
+	);
+}