import { serverApi } from '../lib/serverApi.js';

const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL || 'https://top-sysops.ru';

export default async function sitemap() {
  const [posts, services, faqs] = await Promise.all([
    serverApi.getBlogPosts(),
    serverApi.getServices(),
    serverApi.getFaqs(),
  ]);

  return [
    { url: `${SITE_URL}/`, changeFrequency: 'weekly', priority: 1.0 },
    { url: `${SITE_URL}/uslugi`, changeFrequency: 'weekly', priority: 0.9 },
    ...services.map((cat) => ({
      url: `${SITE_URL}/uslugi/${cat.slug}`,
      changeFrequency: 'monthly',
      priority: 0.8,
    })),
    { url: `${SITE_URL}/aktsii`, changeFrequency: 'weekly', priority: 0.7 },
    { url: `${SITE_URL}/keysy`, changeFrequency: 'monthly', priority: 0.6 },
    { url: `${SITE_URL}/o-kompanii`, changeFrequency: 'monthly', priority: 0.6 },
    { url: `${SITE_URL}/otzyvy`, changeFrequency: 'weekly', priority: 0.5 },
    { url: `${SITE_URL}/faq`, changeFrequency: 'monthly', priority: 0.5 },
    ...faqs.filter((f) => f.slug).map((f) => ({
      url: `${SITE_URL}/faq/${f.slug}`,
      changeFrequency: 'monthly',
      priority: 0.4,
    })),
    { url: `${SITE_URL}/kontakty`, changeFrequency: 'monthly', priority: 0.6 },
    { url: `${SITE_URL}/blog`, changeFrequency: 'weekly', priority: 0.7 },
    ...posts.map((p) => ({
      url: `${SITE_URL}/blog/${p.slug}`,
      lastModified: p.published_at ? new Date(p.published_at) : undefined,
      changeFrequency: 'monthly',
      priority: 0.6,
    })),
  ];
}