import { createRelativeLink } from 'fumadocs-ui/mdx';
import {
  DocsBody,
  DocsDescription,
  DocsPage,
  DocsTitle,
} from 'fumadocs-ui/page';
import type { Metadata } from 'next';
import { notFound } from 'next/navigation';
import { url } from '@/lib/layout.shared';
import { getOgImageUrl, getPageMetadata } from '@/lib/metadata';
import { source } from '@/lib/source';
import { getMDXComponents } from '@/mdx-components';

type PageProps = {
  params: Promise<{ slug: string[] }>;
};

export default async function Page(props: PageProps) {
  const params = await props.params;
  const page = source.getPage(params.slug);
  if (!page) {
    notFound();
  }

  const MDX = page.data.body;

  return (
    <DocsPage full={page.data.full} toc={page.data.toc}>
      <DocsTitle>{page.data.title}</DocsTitle>
      <DocsDescription>{page.data.description}</DocsDescription>
      <DocsBody>
        <MDX
          components={getMDXComponents({
            // this allows you to link to other pages with relative file paths
            a: createRelativeLink(source, page),
          })}
        />
      </DocsBody>
    </DocsPage>
  );
}

export async function generateStaticParams() {
  return source.generateParams();
}

export async function generateMetadata(props: PageProps): Promise<Metadata> {
  const params = await props.params;
  const page = source.getPage(params.slug);
  if (!page) {
    notFound();
  }

  return getPageMetadata({
    title: page.data.title,
    url: url(page.url),
    description: page.data.description ?? '',
    image: getOgImageUrl(page.url),
  });
}
