import type {APIRoute} from 'astro';
import {metadata} from "@/consts";
import {createHttp} from "@/lib/request.ts";
import type {PostForSitemap} from "@/types";
import dayjs from "dayjs";

const site = metadata.site

export const GET: APIRoute = async (context) => {
  const http = createHttp(context.request.headers);

  const {data} = await http.get<ApiResponse<PostForSitemap[]>>("posts/sitemap")

  const urls = data
    .filter((url, index, array) => {
      return array.indexOf(url) === index;
    });

  const xml = `<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
              ${urls.map((post) => `<url>
                <loc>${site}/${post.slug}</loc>
                <lastmod>${dayjs(post.updated_at || post.created_at).toISOString()}</lastmod>
              </url>`
  )
    .join('\n')}
</urlset>`;

  return new Response(xml, {
    status: 200,
    headers: {
      'Content-Type': 'application/xml; charset=utf-8',
      'Cache-Control': 'public, max-age=3600, s-maxage=3600',
    },
  });
};