"use client";

import Link from "next/link";
import { useRelated } from "@/hooks/useRelated";
import { getSectionMeta } from "@mcpedia/config/sections";
import { Sparkles } from "lucide-react";

export default function RelatedGrid({ slug }: { slug: string }) {
  const { related, isLoading, error } = useRelated(slug, 4);

  if (isLoading) {
    return (
      <div className="grid grid-cols-1 sm:grid-cols-2 gap-3 animate-pulse">
        {Array.from({ length: 4 }).map((_, i) => (
          <div key={i} className="h-24 bg-[var(--bg-surface)] border border-[var(--border-color)] rounded-lg" />
        ))}
      </div>
    );
  }

  if (error || related.length === 0) return null;

  return (
    <aside className="mt-12 pt-8 border-t border-[var(--border-color)]">
      <div className="flex items-center gap-2 mb-3.5">
        <Sparkles className="w-4 h-4 text-[var(--text-muted)]" />
        <h2 className="text-xs font-bold text-[var(--text-muted)] uppercase tracking-wider font-mono">Related Knowledge</h2>
      </div>
      <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
        {related.map((r) => {
          const rInfo = getSectionMeta(r.section);
          return (
            <Link
              key={r.slug}
              href={`/${r.slug}`}
              className="group block bg-[var(--bg-surface)] hover:bg-[var(--bg-surface-hover)] border border-[var(--border-color)] hover:border-[var(--text-muted)] rounded-lg p-4 transition-colors shadow-xs"
            >
              <div className="flex items-center justify-between gap-2 mb-1.5">
                <span className="text-[10px] text-[var(--text-muted)] font-mono uppercase font-semibold">
                  {rInfo.icon} {r.section}
                </span>
                <time className="text-[11px] text-[var(--text-dim)] font-mono">
                  {new Date(r.updatedAt).toLocaleDateString(undefined, { month: "short", day: "numeric" })}
                </time>
              </div>
              <h3 className="text-xs sm:text-sm font-semibold text-[var(--text-primary)] group-hover:underline line-clamp-1">{r.title}</h3>
            </Link>
          );
        })}
      </div>
    </aside>
  );
}