import type { Metadata } from 'next';
import { notFound } from 'next/navigation';
import { verifySession } from '@/lib/auth/dal';
import { fetchCommonCodes } from '@/lib/data/repositories/common-code-repository';
import { fetchMerchantDetail } from '@/lib/data/repositories/merchant-detail-repository';
import { fetchMerchantProducts } from '@/lib/data/repositories/merchant-product-repository';
import { CODE_GROUP } from '@/lib/domain/common-code';
import { MerchantDetailForm } from './_components/merchant-detail-form';

export const metadata: Metadata = { title: '가맹몰 상세 정보' };
export const dynamic = 'force-dynamic';

interface PageProps {
  params: Promise<{ frcsNo: string }>;
}

/** 가맹점 하나의 상세 화면 — 상세가 아직 없으면 그 가맹점을 고정한 채 처음 만드는 화면이 된다. */
export default async function Page({ params }: PageProps) {
  await verifySession();

  const { frcsNo } = await params;
  const detail = await fetchMerchantDetail(frcsNo);
  if (!detail) {
    notFound();
  }

  // 상세가 없으면 백엔드 메뉴 목록도 비어 온다(상세와 INNER JOIN) — 부르지 않는다.
  const [products, categories] = await Promise.all([
    detail.hasDetail ? fetchMerchantProducts(frcsNo) : Promise.resolve([]),
    fetchCommonCodes(CODE_GROUP.merchantType),
  ]);

  if (!detail.hasDetail) {
    return <MerchantDetailForm merchant={detail} categories={categories} />;
  }
  return <MerchantDetailForm detail={detail} products={products} categories={categories} />;
}