import type { Metadata } from "next";
import Link from "next/link";
import { notFound } from "next/navigation";

import { JsonLd } from "@/components/CmsMeta";
import { asRichHtml, getBlogBySlug, safe } from "@/lib/catalog";

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

export async function generateMetadata({ params }: PageProps): Promise<Metadata> {
  const { slug } = await params;
  const data = await safe(getBlogBySlug(slug), null);
  if (!data) return { title: "نوشته پیدا نشد" };
  const title = data.blog.seoMetaTitle || data.blog.title || data.blog.nameFa || slug;
  const description = data.blog.seoMetaDescription || data.blog.summary || title;
  const image = data.blog.thumbnailUrl || data.blog.image;
  return {
    title,
    description,
    openGraph: image ? { title, description, images: [{ url: image, alt: title }] } : { title, description },
  };
}

export default async function BlogDetailPage({ params }: PageProps) {
  const { slug } = await params;
  const data = await safe(getBlogBySlug(slug), null);
  if (!data) notFound();

  const blog = data.blog;
  const title = blog.title || blog.nameFa || slug;
  const html = asRichHtml(blog.contentHtml || blog.descriptionHtml);
  const image = blog.thumbnailUrl || blog.image;

  return (
    <main className="page">
      <JsonLd data={blog.schema?.jsonLd ?? null} />
      <article className="article wrap">
        <header className="page-intro">
          {blog.categoryNameFa ? <p className="kicker">{blog.categoryNameFa}</p> : null}
          <h1>{title}</h1>
          {blog.summary ? <p className="lead">{blog.summary}</p> : null}
        </header>
        {image ? (
          <figure className="article__figure">
            {/* eslint-disable-next-line @next/next/no-img-element */}
            <img src={image} alt={title} />
          </figure>
        ) : null}
        {html ? (
          <div className="rich-text" dangerouslySetInnerHTML={{ __html: html }} />
        ) : (
          <p className="category-empty">متن این نوشته هنوز تکمیل نشده است.</p>
        )}
        <Link className="text-link" href="/blog">
          بازگشت به مجله
        </Link>
      </article>
    </main>
  );
}