import { MetadataRoute } from "next";
import { houses } from "@/src/config/apartments";

const baseUrl = "https://bb-apartment.de";

export default function sitemap(): MetadataRoute.Sitemap {
  const locales = ["de", "en"];

  const staticRoutes: MetadataRoute.Sitemap = [
    { url: baseUrl, lastModified: new Date() },
    ...locales.map((locale) => ({
      url: `${baseUrl}/${locale}`,
      lastModified: new Date(),
    })),
    ...locales.map((locale) => ({
      url: `${baseUrl}/${locale}/houses`,
      lastModified: new Date(),
    })),
    ...locales.map((locale) => ({
      url: `${baseUrl}/${locale}/contact`,
      lastModified: new Date(),
    })),
    ...locales.map((locale) => ({
      url: `${baseUrl}/${locale}/imprint`,
      lastModified: new Date(),
    })),
    ...locales.map((locale) => ({
      url: `${baseUrl}/${locale}/privacy`,
      lastModified: new Date(),
    })),
  ];

  const houseRoutes: MetadataRoute.Sitemap = houses.flatMap((house) =>
    locales.map((locale) => ({
      url: `${baseUrl}/${locale}/houses/${house.slug}`,
      lastModified: new Date(),
    }))
  );

  const apartmentRoutes: MetadataRoute.Sitemap = houses.flatMap((house) =>
    house.apartments.flatMap((apartment) =>
      locales.map((locale) => ({
        url: `${baseUrl}/${locale}/apartments/${apartment.slug}`,
        lastModified: new Date(),
      }))
    )
  );

  return [...staticRoutes, ...houseRoutes, ...apartmentRoutes];
}