"use client";

import Link from "next/link";
import { useMemo } from "react";
import { useSearchParams } from "next/navigation";
import { formatRingLabel } from "@/lib/forumRings";
import { SHOP_CHATTER_COUNT, getChatterSlice } from "@/lib/shopChatterThreads";

const PAGE_SIZE = 12;

function formatAgo(ts: number): string {
  const s = Math.floor((Date.now() - ts) / 1000);
  if (s < 60) return `${s}s ago`;
  const m = Math.floor(s / 60);
  if (m < 60) return `${m}m ago`;
  const h = Math.floor(m / 60);
  if (h < 48) return `${h}h ago`;
  const d = Math.floor(h / 24);
  return `${d}d ago`;
}

export default function HubChatterArchivePage() {
  const sp = useSearchParams();
  const page = Math.max(1, parseInt(sp.get("page") ?? "1", 10) || 1);

  const { items, totalPages, total } = useMemo(
    () => getChatterSlice(page, PAGE_SIZE),
    [page],
  );

  const pages = useMemo(() => {
    const window = 2;
    const lo = Math.max(1, page - window);
    const hi = Math.min(totalPages, page + window);
    const out: number[] = [];
    for (let i = lo; i <= hi; i++) out.push(i);
    return out;
  }, [page, totalPages]);

  return (
    <div className="min-h-screen bg-[#050403] text-[#d4c4b0]">
      <div
        className="pointer-events-none fixed inset-0 z-0 opacity-[0.08]"
        style={{
          backgroundImage:
            "repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,180,120,0.12) 3px)",
        }}
      />
      <header className="relative z-10 border-b border-[#3d3028] bg-[#0c0906]/95 px-4 py-8">
        <div className="mx-auto max-w-3xl">
          <p className="font-mono text-[10px] uppercase tracking-[0.4em] text-[#c45c26]/90">archive</p>
          <h1 className="mt-2 font-mono text-2xl font-black text-[#ffcb8a] md:text-3xl">Hub chatter index</h1>
          <p className="mt-3 max-w-2xl text-sm leading-relaxed text-[#9a8d7c]">
            Scraped-style threads about the <strong className="text-[#ffcb8a]">CyberLux main storefront</strong> — mirror
            checks, checkout banter, UI roasts, class-lab meta. Each row opens in Void Aggregate for full comments.
          </p>
          <nav className="mt-6 flex flex-wrap gap-3 font-mono text-xs">
            <Link
              href="/forum"
              className="rounded border border-[#c45c26] bg-[#c45c26]/15 px-4 py-2 font-bold text-[#ffcb8a] hover:bg-[#c45c26]/25"
            >
              Void Aggregate forum
            </Link>
            <Link href="/" className="rounded border border-[#3d3028] px-4 py-2 text-[#b8a995] hover:border-[#c45c26]/50">
              Main hub
            </Link>
          </nav>
        </div>
      </header>

      <main className="relative z-10 mx-auto max-w-3xl px-4 pb-24 pt-8">
        <p className="mb-6 font-mono text-xs text-[#6b6358]">
          Showing {(page - 1) * PAGE_SIZE + 1}–{Math.min(page * PAGE_SIZE, total)} of {total} indexed posts ·{" "}
          {PAGE_SIZE} per page
        </p>

        <ul className="space-y-4">
          {items.map((row) => (
            <li key={row.id} className="rounded-lg border border-[#2a2218] bg-[#0a0705]/95 p-4">
              <div className="flex flex-wrap items-baseline justify-between gap-2 font-mono text-[10px] uppercase tracking-wider text-[#7a6e62]">
                <span className="text-[#ff9a3c]/90">{formatRingLabel(row.topicSlug)}</span>
                <span>
                  {row.author} · {formatAgo(row.ts)}
                </span>
              </div>
              <Link
                href={`/forum/post/${row.id}`}
                className="mt-2 block font-mono text-base font-bold leading-snug text-[#ffcb8a] hover:underline"
              >
                {row.title}
              </Link>
              <p className="mt-2 line-clamp-3 text-sm leading-relaxed text-[#b0a090]">{row.body}</p>
              <div className="mt-3 flex flex-wrap gap-3 font-mono text-[11px] text-[#6b6358]">
                <span>{row.replies.length} comments</span>
                <span>score ~{row.baseScore ?? 1}</span>
                <Link href={`/forum/post/${row.id}`} className="text-[#ff9a3c] hover:underline">
                  open thread →
                </Link>
              </div>
            </li>
          ))}
        </ul>

        <nav className="mt-12 flex flex-wrap items-center justify-center gap-2 font-mono text-xs">
          {page > 1 ? (
            <Link
              href={`/chatter?page=${page - 1}`}
              className="rounded border border-[#3d3028] px-3 py-2 text-[#ffcb8a] hover:border-[#c45c26]"
            >
              ← Newer
            </Link>
          ) : (
            <span className="rounded border border-transparent px-3 py-2 text-[#4a433c]">← Newer</span>
          )}
          {pages.map((n) => (
            <Link
              key={n}
              href={`/chatter?page=${n}`}
              className={`rounded border px-3 py-2 ${
                n === page ? "border-[#c45c26] bg-[#c45c26]/20 text-[#ffcb8a]" : "border-[#3d3028] text-[#b8a995] hover:border-[#c45c26]/40"
              }`}
            >
              {n}
            </Link>
          ))}
          {page < totalPages ? (
            <Link
              href={`/chatter?page=${page + 1}`}
              className="rounded border border-[#3d3028] px-3 py-2 text-[#ffcb8a] hover:border-[#c45c26]"
            >
              Older →
            </Link>
          ) : (
            <span className="rounded border border-transparent px-3 py-2 text-[#4a433c]">Older →</span>
          )}
        </nav>

        <p className="mt-10 text-center font-mono text-[10px] text-[#4a4338]">Total catalogued: {SHOP_CHATTER_COUNT} threads</p>
      </main>
    </div>
  );
}