import { json } from '@sveltejs/kit';
import { browseAllPost } from "$lib/content/contentApi";

export async function GET() {

    const allPosts = await browseAllPost();


    /** @type {import('@sveltejs/kit').RequestHandler} */
    const createSitemap = () => {

        let xml = ''
        xml += '<?xml version="1.0" encoding="UTF-8"?>'
        xml += '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'


        allPosts.map((_post) => {
            xml += '<url>'
            xml += `<loc>${_post.url}</loc>`
            xml += `<lastmod>${_post.updated_at}</lastmod>`
            xml += `<changefreq>always</changefreq>`
            xml += `<priority>0.5</priority>`
            xml += '</url>'
        });

        xml += '</urlset>'

        console.log(`Wrote Sitemap`);
        return xml;

    }
    const xmlSitemap =  createSitemap();
    // Suggestion (check for correctness before using):
    // return json(xml, {
    //     headers: {
    //         'access-control-allow-origin': '*'
    //     }
    // });
    return new Response(xmlSitemap, {
        headers: {
            'access-control-allow-origin': '*'
        },
    });
}