import { MetadataRoute } from "next";
import { getAllPosts } from "@/lib/blog";

export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
  const baseUrl = "https://sztucznainteligencjadlafirm.pl";

  // Static pages
  const routes = [
    {
      url: `${baseUrl}/`,
      lastModified: new Date(),
      changeFrequency: "monthly" as const,
      priority: 1.0,
    },
    {
      url: `${baseUrl}/about/`,
      lastModified: new Date(),
      changeFrequency: "monthly" as const,
      priority: 0.8,
    },
    {
      url: `${baseUrl}/oferta/`,
      lastModified: new Date(),
      changeFrequency: "monthly" as const,
      priority: 0.9,
    },
    {
      url: `${baseUrl}/blog/`,
      lastModified: new Date(),
      changeFrequency: "weekly" as const,
      priority: 0.9,
    },
  ];

  // Dynamic blog posts
  try {
    const posts = await getAllPosts();
    const blogPosts = posts.map((post) => ({
      url: `${baseUrl}/blog/${post.slug}/`,
      lastModified: new Date(post.updatedAt),
      changeFrequency: "weekly" as const,
      priority: 0.7,
    }));

    return [...routes, ...blogPosts];
  } catch (error) {
    console.error("Error generating sitemap:", error);
    // Return static routes if blog posts fail to load
    return routes;
  }
}