import type { MetadataRoute } from "next";
import { getAllCafeSlugs } from "@/lib/api";

const BASE = process.env.NEXT_PUBLIC_SITE_URL ?? "https://find.meezi.ir";
const LOCALES = ["fa", "en"];

const CITIES = [
  "tehran", "isfahan", "mashhad", "shiraz", "tabriz",
  "karaj", "ahvaz", "qom", "rasht", "kermanshah",
];

export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
  const slugs = await getAllCafeSlugs();

  const staticPages = LOCALES.flatMap((locale) => [
    {
      url: `${BASE}/${locale}`,
      lastModified: new Date(),
      changeFrequency: "daily" as const,
      priority: 1.0,
    },
    {
      url: `${BASE}/${locale}/search`,
      lastModified: new Date(),
      changeFrequency: "daily" as const,
      priority: 0.8,
    },
  ]);

  const cityPages = LOCALES.flatMap((locale) =>
    CITIES.map((city) => ({
      url: `${BASE}/${locale}/city/${city}`,
      lastModified: new Date(),
      changeFrequency: "weekly" as const,
      priority: 0.7,
    }))
  );

  const cafePages = LOCALES.flatMap((locale) =>
    slugs.map((slug) => ({
      url: `${BASE}/${locale}/cafe/${slug}`,
      lastModified: new Date(),
      changeFrequency: "weekly" as const,
      priority: 0.9,
    }))
  );

  return [...staticPages, ...cityPages, ...cafePages];
}