import type { MetadataRoute } from "next";
import { getLocalizedPath, isSiteClosedMode, siteConfig } from "@/lib/site";
import type { Locale } from "@/lib/i18n";

const allPages = ["", "/about", "/contact", "/legal/privacy", "/legal/terms", "/legal/impressum"] as const;
const allLocales = ["ar", "en"] as const;

export default function sitemap(): MetadataRoute.Sitemap {
  const lastModified = new Date();
  const siteClosed = isSiteClosedMode();
  const pages: readonly (typeof allPages)[number][] = siteClosed ? [] : allPages;
  const locales: readonly Locale[] = siteClosed ? [] : allLocales;

  return [
    {
      url: siteConfig.siteUrl,
      lastModified,
      changeFrequency: "weekly",
      priority: 0.8,
    },
    ...pages.flatMap((page) =>
      locales.map((locale) => ({
        url: `${siteConfig.siteUrl}${getLocalizedPath(page, locale)}`,
        lastModified,
        changeFrequency: "weekly" as const,
        priority: page === "" ? 1 : 0.7,
      })),
    ),
  ];
}