import { existsSync } from "node:fs";
import path from "node:path";
import type { Metadata } from "next";
import { redirect } from "next/navigation";
import { auth } from "@/app/(auth)/auth";

const ZOO_MODELING_APP_SRC =
  "/vendor/zoo-modeling-app/index.html?v=f2b345db-eng1";

export const dynamic = "force-dynamic";
export const metadata: Metadata = {
  title: "HiCAD",
};
export const runtime = "nodejs";

export default async function AiCadPage() {
  const session = await auth();
  if (!session?.user?.id) {
    redirect("/login?callbackUrl=%2Fai-cad");
  }

  const isReady = existsSync(
    path.join(process.cwd(), "public/vendor/zoo-modeling-app/index.html")
  );

  if (isReady) {
    redirect(ZOO_MODELING_APP_SRC);
  }

  return (
    <main className="flex h-svh w-full items-center justify-center bg-[#10100e] p-6 text-[#f8f6ef]">
      <section className="w-full max-w-xl rounded-lg border border-[#3a352c] bg-[#171510] p-6 shadow-2xl">
        <h1 className="font-semibold text-lg">HiCAD 官方前端尚未构建</h1>
        <p className="mt-2 text-[#d3cabb] text-sm leading-6">
          请运行
          <code className="mx-1 rounded bg-white/10 px-1.5 py-0.5">
            pnpm zoo-modeling-app:vendor
          </code>
          生成官方前端，然后刷新本页。
        </p>
      </section>
    </main>
  );
}