import { getOptionalAppUserFromRequest } from "@/server/app/app-auth";
import { listPickedGalleryPhotos } from "@/server/site/gallery-photos";
import { NextResponse, type NextRequest } from "next/server";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

export async function GET(request: NextRequest) {
    try {
        const { searchParams } = new URL(request.url);
        const page = parseInt(searchParams.get("page") || "1", 10);
        const pageSize = parseInt(
            searchParams.get("pageSize") ||
                searchParams.get("page_size") ||
                "24",
            10,
        );
        const colorFamily = searchParams.get("colorFamily");

        if (page < 1 || pageSize < 1 || pageSize > 100) {
            return NextResponse.json(
                { ok: false, error: "Invalid pagination parameters." },
                { status: 400 },
            );
        }

        const user = await getOptionalAppUserFromRequest(request);
        const result = await listPickedGalleryPhotos({
            colorFamily,
            page,
            pageSize,
            userId: user?.id ?? null,
        });

        return NextResponse.json({
            ok: true,
            data: result.data,
            pagination: {
                page,
                pageSize,
                total: result.total,
                hasMore: result.total > page * pageSize,
                nextPage: result.total > page * pageSize ? page + 1 : null,
            },
        });
    } catch (error) {
        const message =
            error instanceof Error ? error.message : "Unknown error.";
        return NextResponse.json(
            { ok: false, error: message },
            { status: 500 },
        );
    }
}