"use client";
import React, { useState, useEffect, useRef, useCallback } from "react";
import Link from "next/link";
import AppImage from "@/components/ui/AppImage";
import Header from "@/components/Header";
import Footer from "@/components/Footer";
import AdSlot from "@/components/AdSlot";
import SidebarAdStack from "@/components/SidebarAdStack";
import ArticleBody from "@/components/ArticleBody";
import StarRating from "@/components/StarRating";
import { createClient } from "@/lib/supabase/client";
import type { Article } from "@/lib/articles/types";
import type { RelatedForumThread } from "@/lib/articles/legacy-source";
import ArticleComments from "@/components/ArticleComments";

interface NewsArticleDetailClientProps {
  article: Article;
  relatedArticles: Article[];
  relatedForumThreads?: RelatedForumThread[];
  companiesInStory?: React.ReactNode;
}

function getSessionId(): string {
  if (typeof window === "undefined") return "";
  let sid = sessionStorage.getItem("bb_session_id");
  if (!sid) {
    sid = `sess_${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
    sessionStorage.setItem("bb_session_id", sid);
  }
  return sid;
}

export default function NewsArticleDetailClient({
  article,
  relatedArticles,
  relatedForumThreads = [],
  companiesInStory,
}: NewsArticleDetailClientProps) {
  const [isSaved, setIsSaved] = useState(false);
  const [savingState, setSavingState] = useState<"idle" | "saving" | "removing">("idle");
  const [saveToast, setSaveToast] = useState<string | null>(null);
  const [currentUser, setCurrentUser] = useState<{ id: string } | null>(null);
  const [emailShareOpen, setEmailShareOpen] = useState(false);
  const [emailTo, setEmailTo] = useState("");
  const [emailNote, setEmailNote] = useState("");
  const [emailSending, setEmailSending] = useState(false);
  const [emailStatus, setEmailStatus] = useState<"idle" | "success" | "error">("idle");
  const [carouselIndex, setCarouselIndex] = useState(0);
  const articleStartTime = useRef<number>(Date.now());
  const hasTrackedView = useRef(false);
  const supabase = createClient();

  const CARDS_VISIBLE = 3;
  const maxIndex = Math.max(0, relatedArticles.length - CARDS_VISIBLE);

  // Get current user
  useEffect(() => {
    supabase?.auth?.getUser().then(({ data }) => {
      setCurrentUser(data?.user ?? null);
    });
  }, []);

  // Track article view
  useEffect(() => {
    if (hasTrackedView.current || !article?.slug) return;
    hasTrackedView.current = true;
    articleStartTime.current = Date.now();
    const trackView = async () => {
      try {
        const { data: userData } = await supabase?.auth?.getUser();
        await supabase?.from("article_analytics")?.insert({
          article_slug: article.slug,
          article_title: article.title,
          user_id: userData?.user?.id ?? null,
          session_id: getSessionId(),
          event_type: "view",
          read_time_seconds: 0,
          scroll_depth: 0,
          referrer: typeof document !== "undefined" ? document.referrer : "",
        });

        // Track reading history and topic preferences for authenticated users
        if (userData?.user?.id) {
          // Upsert reading history
          await supabase?.from("reading_history")?.upsert(
            {
              user_id: userData.user.id,
              article_slug: article.slug,
              article_title: article.title,
              article_excerpt: article.excerpt ?? null,
              article_image: article.image ?? null,
              article_image_alt: article.alt ?? null,
              article_category: article.category ?? null,
              article_author: article.author ?? null,
              article_read_time: article.readTime ?? null,
              article_date: article.date ?? null,
              viewed_at: new Date().toISOString(),
            },
            { onConflict: "user_id,article_slug" }
          );

          // Upsert topic preference
          if (article.category) {
            const topic = article.category.toLowerCase().trim();
            const { data: existing } = await supabase
              ?.from("user_topic_preferences")
              ?.select("id, view_count")
              ?.eq("user_id", userData.user.id)
              ?.eq("topic", topic)
              ?.maybeSingle();

            if (existing) {
              await supabase
                ?.from("user_topic_preferences")
                ?.update({
                  view_count: (existing.view_count || 0) + 1,
                  last_viewed_at: new Date().toISOString(),
                })
                ?.eq("id", existing.id);
            } else {
              await supabase?.from("user_topic_preferences")?.insert({
                user_id: userData.user.id,
                topic,
                view_count: 1,
                last_viewed_at: new Date().toISOString(),
              });
            }
          }
        }
      } catch {
        // Silent fail
      }
    };
    trackView();
  }, [article?.slug]);

  // Track read completion on unmount
  useEffect(() => {
    return () => {
      if (!article?.slug) return;
      const readSeconds = Math.round((Date.now() - articleStartTime.current) / 1000);
      if (readSeconds < 5) return;
      const trackRead = async () => {
        try {
          const { data: userData } = await supabase?.auth?.getUser();
          await supabase?.from("article_analytics")?.insert({
            article_slug: article.slug,
            article_title: article.title,
            user_id: userData?.user?.id ?? null,
            session_id: getSessionId(),
            event_type: "read",
            read_time_seconds: readSeconds,
            scroll_depth: 0,
            referrer: typeof document !== "undefined" ? document.referrer : "",
          });
        } catch {
          // Silent fail
        }
      };
      trackRead();
    };
  }, [article?.slug]);

  // Check if article is saved
  useEffect(() => {
    if (!currentUser || !article?.slug) return;
    const checkSaved = async () => {
      try {
        const { data } = await supabase
          ?.from("reading_list")
          ?.select("id")
          ?.eq("user_id", currentUser.id)
          ?.eq("article_slug", article.slug)
          ?.maybeSingle();
        setIsSaved(!!data);
      } catch {
        // Silent fail
      }
    };
    checkSaved();
  }, [currentUser, article?.slug]);

  const handleSaveToReadingList = useCallback(async () => {
    if (!currentUser) {
      setSaveToast("Sign in to save articles to your reading list");
      setTimeout(() => setSaveToast(null), 3000);
      return;
    }
    if (isSaved) {
      setSavingState("removing");
      try {
        await supabase
          ?.from("reading_list")
          ?.delete()
          ?.eq("user_id", currentUser.id)
          ?.eq("article_slug", article.slug);
        setIsSaved(false);
        setSaveToast("Removed from reading list");
      } catch {
        setSaveToast("Failed to remove article");
      } finally {
        setSavingState("idle");
        setTimeout(() => setSaveToast(null), 2500);
      }
    } else {
      setSavingState("saving");
      try {
        await supabase?.from("reading_list")?.insert({
          user_id: currentUser.id,
          article_slug: article.slug,
          article_title: article.title,
          article_excerpt: article.excerpt,
          article_image: article.image,
          article_image_alt: article.alt,
          article_category: article.category,
          article_author: article.author,
          article_read_time: article.readTime,
          article_date: article.date,
        });
        setIsSaved(true);
        setSaveToast("Saved to reading list");
      } catch {
        setSaveToast("Failed to save article");
      } finally {
        setSavingState("idle");
        setTimeout(() => setSaveToast(null), 2500);
      }
    }
  }, [currentUser, isSaved, article]);

  const handleEmailShare = useCallback(async () => {
    if (!emailTo.trim()) return;
    setEmailSending(true);
    setEmailStatus("idle");
    try {
      const articleUrl = `${process.env.NEXT_PUBLIC_SITE_URL || "https://avbeat.com"}/news/${article.slug}`;
      const res = await fetch("/api/news/share-email", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          to: emailTo.trim(),
          articleTitle: article.title,
          articleUrl,
          articleExcerpt: article.excerpt,
          note: emailNote.trim(),
        }),
      });
      if (res.ok) {
        setEmailStatus("success");
        setEmailTo("");
        setEmailNote("");
        setTimeout(() => {
          setEmailShareOpen(false);
          setEmailStatus("idle");
        }, 2500);
      } else {
        setEmailStatus("error");
      }
    } catch {
      setEmailStatus("error");
    } finally {
      setEmailSending(false);
    }
  }, [emailTo, emailNote, article]);

  const prevCarousel = () => setCarouselIndex((i) => Math.max(0, i - 1));
  const nextCarousel = () => setCarouselIndex((i) => Math.min(maxIndex, i + 1));

  const articleUrl =
    typeof window !== "undefined"
      ? window.location.href
      : `https://avbeat.com/news/${article.slug}`;

  return (
    <div className="min-h-screen bg-background">
      <Header />

      {/* Breadcrumb */}
      <div className="bg-[#0d0d0d] border-b border-[#1a1a1a]">
        <div className="max-w-container mx-auto px-4 py-2.5 flex items-center gap-2 text-xs font-body text-[#555]">
          <Link href="/home-page" className="hover:text-[#3b82f6] transition-colors">
            Home
          </Link>
          <span>/</span>
          <Link href="/news" className="hover:text-[#3b82f6] transition-colors">
            News
          </Link>
          <span>/</span>
          <span className="text-[#888] truncate max-w-[300px]">{article.title}</span>
        </div>
      </div>

      {/* Article */}
      <article className="max-w-container mx-auto px-4 py-8 md:py-12">
        <div className="grid grid-cols-1 lg:grid-cols-12 gap-8">
          {/* Main Content */}
          <div className="lg:col-span-8">
            {/* Article Header */}
            <div className="mb-8">
              <div className="flex items-center gap-3 mb-4">
                <Link
                  href="/news"
                  className="text-xs font-bold uppercase tracking-widest text-[#3b82f6] hover:underline">
                  {article.category}
                </Link>
                <span className="text-xs text-[#777]">{article.readTime}</span>
              </div>

              <h1 className="font-heading text-3xl md:text-4xl font-bold mb-4 leading-tight text-[#f0f0f0]">
                {article.title}
              </h1>
              <div className="mb-4">
                <StarRating seed={article.slug} publishedAt={article.publishedAt || article.date} size="md" />
              </div>
              <p className="font-body text-lg text-[#999] mb-6 leading-relaxed">
                {article.excerpt}
              </p>

              {/* Article Meta */}
              <div className="flex items-center justify-between py-4 border-t border-b border-[#222]">
                <div className="flex items-center gap-3">
                  <AppImage
                    src={article.authorAvatar}
                    alt={`${article.author} — ${article.authorTitle}`}
                    width={40}
                    height={40}
                    className="w-10 h-10 rounded-full object-cover"
                  />
                  <div>
                    <Link
                      href={`/authors/${article.authorSlug}`}
                      className="font-heading font-bold text-sm hover:text-[#3b82f6] transition-colors text-[#e0e0e0]">
                      {article.author}
                    </Link>
                    <p className="font-body text-xs text-[#777]">{article.authorTitle}</p>
                  </div>
                </div>

                {/* Action buttons */}
                <div className="flex items-center gap-2 flex-wrap">
                  {/* Email Share Button */}
                  <button
                    onClick={() => setEmailShareOpen(true)}
                    aria-label="Share via email"
                    title="Email"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#3b82f6] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" aria-hidden="true">
                      <rect x="2" y="4" width="20" height="16" rx="2" />
                      <path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7" />
                    </svg>
                  </button>

                  {/* LinkedIn */}
                  <a
                    href={`https://www.linkedin.com/sharing/share-offsite/?url=${encodeURIComponent(articleUrl)}`}
                    target="_blank" rel="noopener noreferrer"
                    aria-label="Share on LinkedIn"
                    title="LinkedIn"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#0a66c2] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#0a66c2]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
                      <path d="M19 0h-14C2.24 0 0 2.24 0 5v14c0 2.76 2.24 5 5 5h14c2.76 0 5-2.24 5-5V5c0-2.76-2.24-5-5-5zM8 19H5V8h3v11zM6.5 6.73a1.75 1.75 0 1 1 0-3.5 1.75 1.75 0 0 1 0 3.5zM20 19h-3v-5.6c0-3.37-4-3.12-4 0V19h-3V8h3v1.77c1.4-2.59 7-2.78 7 2.48V19z"/>
                    </svg>
                  </a>

                  {/* X / Twitter */}
                  <a
                    href={`https://twitter.com/intent/tweet?url=${encodeURIComponent(articleUrl)}&text=${encodeURIComponent(article.title)}&via=BroadcastBeat`}
                    target="_blank" rel="noopener noreferrer"
                    aria-label="Share on X"
                    title="X (Twitter)"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-white hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-white">
                    <svg width="14" height="14" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
                      <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"/>
                    </svg>
                  </a>

                  {/* Facebook */}
                  <a
                    href={`https://www.facebook.com/sharer/sharer.php?u=${encodeURIComponent(articleUrl)}`}
                    target="_blank" rel="noopener noreferrer"
                    aria-label="Share on Facebook"
                    title="Facebook"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#1877f2] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#1877f2]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
                      <path d="M24 12.073c0-6.627-5.373-12-12-12S0 5.446 0 12.073C0 18.062 4.388 23.027 10.125 23.927v-8.385H7.078v-3.47h3.047V9.43c0-3.007 1.792-4.669 4.533-4.669 1.312 0 2.686.235 2.686.235v2.953H15.83c-1.491 0-1.956.925-1.956 1.874v2.25h3.328l-.532 3.47h-2.796v8.385C19.612 23.027 24 18.062 24 12.073z"/>
                    </svg>
                  </a>

                  {/* Reddit */}
                  <a
                    href={`https://www.reddit.com/submit?url=${encodeURIComponent(articleUrl)}&title=${encodeURIComponent(article.title)}`}
                    target="_blank" rel="noopener noreferrer"
                    aria-label="Share on Reddit"
                    title="Reddit"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#ff4500] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#ff4500]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
                      <path d="M12 0A12 12 0 0 0 0 12a12 12 0 0 0 12 12 12 12 0 0 0 12-12A12 12 0 0 0 12 0zm5.01 4.744c.688 0 1.25.561 1.25 1.249a1.25 1.25 0 0 1-2.498.056l-2.597-.547-.8 3.747c1.824.07 3.48.632 4.674 1.488.308-.309.73-.491 1.207-.491.968 0 1.754.786 1.754 1.754 0 .716-.435 1.333-1.01 1.614a3.111 3.111 0 0 1 .042.52c0 2.694-3.13 4.87-7.004 4.87-3.874 0-7.004-2.176-7.004-4.87 0-.183.015-.366.043-.534A1.748 1.748 0 0 1 4.028 12c0-.968.786-1.754 1.754-1.754.463 0 .898.196 1.207.49 1.207-.883 2.878-1.43 4.744-1.487l.885-4.182a.342.342 0 0 1 .14-.197.35.35 0 0 1 .238-.042l2.906.617a1.214 1.214 0 0 1 1.108-.701zM9.25 12C8.561 12 8 12.562 8 13.25c0 .687.561 1.248 1.25 1.248.687 0 1.248-.561 1.248-1.249 0-.688-.561-1.249-1.249-1.249zm5.5 0c-.687 0-1.248.561-1.248 1.25 0 .687.561 1.248 1.249 1.248.688 0 1.249-.561 1.249-1.249 0-.687-.562-1.249-1.25-1.249zm-5.466 3.99a.327.327 0 0 0-.231.094.33.33 0 0 0 0 .463c.842.842 2.484.913 2.961.913.477 0 2.105-.056 2.961-.913a.361.361 0 0 0 .029-.463.33.33 0 0 0-.464 0c-.547.533-1.684.73-2.512.73-.828 0-1.979-.196-2.512-.73a.326.326 0 0 0-.232-.095z"/>
                    </svg>
                  </a>

                  {/* WhatsApp */}
                  <a
                    href={`https://api.whatsapp.com/send?text=${encodeURIComponent(article.title + ' ' + articleUrl)}`}
                    target="_blank" rel="noopener noreferrer"
                    aria-label="Share on WhatsApp"
                    title="WhatsApp"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#25d366] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#25d366]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true">
                      <path d="M.057 24l1.687-6.163a11.867 11.867 0 0 1-1.587-5.945C.16 5.335 5.495 0 12.05 0a11.817 11.817 0 0 1 8.413 3.488 11.824 11.824 0 0 1 3.48 8.414c-.003 6.557-5.338 11.892-11.893 11.892a11.9 11.9 0 0 1-5.688-1.448L.057 24zm6.597-3.807c1.676.995 3.276 1.591 5.392 1.592 5.448 0 9.886-4.434 9.889-9.885.002-5.462-4.415-9.89-9.881-9.892-5.452 0-9.887 4.434-9.889 9.884-.001 2.225.651 3.891 1.746 5.634l-.999 3.648 3.742-.981zm11.387-5.464c-.074-.124-.272-.198-.57-.347-.297-.149-1.758-.868-2.031-.967-.272-.099-.47-.149-.669.149-.198.297-.768.967-.941 1.165-.173.198-.347.223-.644.074-.297-.149-1.255-.462-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.297-.347.446-.521.151-.172.2-.296.3-.495.099-.198.05-.372-.025-.521-.075-.148-.669-1.611-.916-2.206-.242-.579-.487-.501-.669-.51l-.57-.01c-.198 0-.52.074-.792.372s-1.04 1.016-1.04 2.479 1.065 2.876 1.213 3.074c.149.198 2.095 3.2 5.076 4.487.711.306 1.265.489 1.697.626.713.226 1.362.194 1.875.118.572-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413z"/>
                    </svg>
                  </a>

                  {/* Copy Link */}
                  <button
                    onClick={async () => {
                      try { await navigator.clipboard.writeText(articleUrl); }
                      catch { /* swallow */ }
                    }}
                    aria-label="Copy article link"
                    title="Copy link"
                    className="flex items-center justify-center w-8 h-8 rounded-sm text-[#888] hover:text-[#3b82f6] hover:bg-[#1a1a1a] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                    <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" aria-hidden="true">
                      <path d="M10 13a5 5 0 0 0 7.54.54l3-3a5 5 0 0 0-7.07-7.07l-1.72 1.71"/>
                      <path d="M14 11a5 5 0 0 0-7.54-.54l-3 3a5 5 0 0 0 7.07 7.07l1.71-1.71"/>
                    </svg>
                  </button>

                  <span className="w-px h-5 bg-[#252525] mx-1" aria-hidden="true" />

                  {/* Save Button */}
                  <button
                    onClick={handleSaveToReadingList}
                    disabled={savingState !== "idle"}
                    aria-label={isSaved ? "Remove from reading list" : "Save to reading list"}
                    className="text-xs font-bold uppercase tracking-widest text-[#3b82f6] hover:text-blue-300 disabled:opacity-50 transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                    {savingState === "saving" ?"Saving..."
                      : savingState === "removing" ?"Removing..."
                      : isSaved
                      ? "✓ Saved" :"Save"}
                  </button>
                </div>
              </div>
            </div>

            {/* Featured Image */}
            <div className="mb-8 overflow-hidden rounded-sm">
              <AppImage
                src={article.image}
                alt={article.alt}
                width={800}
                height={450}
                className="w-full h-auto object-cover"
                priority
              />
            </div>

            {/* Article Body — paragraphs interleaved with rotating 300×250 ads every 4 paragraphs */}
            <ArticleBody
              html={article.content}
              everyN={4}
              className="bb-article-prose prose prose-invert max-w-none mb-8"
            />

            {/* Tags */}
            {article.tags && article.tags.length > 0 && (
              <div className="py-6 border-t border-[#222]">
                <p className="font-body text-xs text-[#555] uppercase tracking-wider mb-3">Tags</p>
                <div className="flex flex-wrap gap-2">
                  {article.tags.map((tag) => (
                    <span
                      key={tag}
                      className="px-3 py-1 text-xs font-body bg-[#1a1a1a] border border-[#2a2a2a] text-[#888] hover:border-[#3b82f6] hover:text-[#3b82f6] transition-colors rounded-sm cursor-default">
                      {tag}
                    </span>
                  ))}
                </div>
              </div>
            )}

            {/* Email Share inline CTA */}
            <div className="py-6 border-t border-[#222]">
              <div className="flex items-center justify-between">
                <p className="font-body text-sm text-[#777]">Found this article useful?</p>
                <button
                  onClick={() => setEmailShareOpen(true)}
                  className="flex items-center gap-2 px-4 py-2 bg-[#1a1a1a] border border-[#2a2a2a] hover:border-[#3b82f6] text-[#888] hover:text-[#3b82f6] text-xs font-bold uppercase tracking-widest transition-colors rounded-sm focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                  <svg
                    width="13"
                    height="13"
                    viewBox="0 0 24 24"
                    fill="none"
                    stroke="currentColor"
                    strokeWidth="2"
                    aria-hidden="true">
                    <rect x="2" y="4" width="20" height="16" rx="2" />
                    <path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7" />
                  </svg>
                  Share via Email
                </button>
              </div>
            </div>

            {/* Back navigation */}
            <div className="pt-6 border-t border-[#222]">
              <Link
                href="/news"
                className="inline-flex items-center gap-2 text-[#3b82f6] font-body text-sm hover:underline focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                <svg
                  width="14"
                  height="14"
                  viewBox="0 0 24 24"
                  fill="none"
                  stroke="currentColor"
                  strokeWidth="2"
                  aria-hidden="true">
                  <polyline points="15 18 9 12 15 6" />
                </svg>
                Back to News
              </Link>
            </div>

            {/* Article comments — sign-in gated for posting + voting,
                public for reading. AI personas participate (tagged). */}
            <ArticleComments articleSlug={article.slug} />
          </div>

          {/* Sidebar */}
          <aside className="lg:col-span-4 space-y-6">
            {/* Blackmagic 300x600 fixed at top + every 300x250 banner stacked */}
            <SidebarAdStack />

            {/* Companies referenced in the article body */}
            {companiesInStory}

            {/* Related Articles Sidebar */}
            <div className="bg-[#111] border border-[#222] p-5">
              <h3 className="font-body font-bold text-xs text-[#3b82f6] uppercase tracking-widest mb-4 pb-2 border-b border-[#222]">
                Related Articles
              </h3>
              <div className="space-y-4">
                {relatedArticles.slice(0, 3).map((related) => (
                  <Link
                    key={related.slug}
                    href={`/news/${related.slug}`}
                    className="flex gap-3 group">
                    <div className="flex-shrink-0 w-[80px] h-[55px] relative overflow-hidden rounded-sm">
                      <AppImage
                        src={related.image}
                        alt={related.alt}
                        fill
                        className="object-cover group-hover:scale-105 transition-transform duration-300"
                        sizes="80px"
                      />
                    </div>
                    <div className="flex-1 min-w-0">
                      <p className="text-[#3b82f6] font-body text-[9px] font-bold uppercase tracking-wider mb-0.5">
                        {related.category}
                      </p>
                      <p className="font-heading text-[#e0e0e0] text-xs font-bold group-hover:text-[#3b82f6] transition-colors line-clamp-2 leading-snug">
                        {related.title}
                      </p>
                    </div>
                  </Link>
                ))}
              </div>
            </div>

            {/* Related Forum Posts — same widget as /articles/[slug] */}
            {relatedForumThreads.length > 0 && (
              <div className="bg-[#111] border border-[#222] p-5">
                <h3 className="font-body font-bold text-xs text-[#3b82f6] uppercase tracking-widest mb-4 pb-2 border-b border-[#222]">
                  Related Forum Posts
                </h3>
                <ul className="space-y-3.5">
                  {relatedForumThreads.map((t) => (
                    <li key={t.id}>
                      <Link href={`/forum/thread/${t.id}`} className="group block">
                        <p className="font-heading text-[#e0e0e0] text-xs font-bold group-hover:text-[#3b82f6] transition-colors line-clamp-2 leading-snug">
                          {t.title}
                        </p>
                        <p className="flex items-center gap-2 mt-1 text-[10px] text-[#666]">
                          {t.category_name && (
                            <span className="text-[#3b82f6] font-body font-bold uppercase tracking-wider">
                              {t.category_name}
                            </span>
                          )}
                          <span>·</span>
                          <span>{t.reply_count} {t.reply_count === 1 ? "reply" : "replies"}</span>
                          {t.vote_score > 0 && <><span>·</span><span>▲ {t.vote_score}</span></>}
                        </p>
                      </Link>
                    </li>
                  ))}
                </ul>
                <Link
                  href="/forum"
                  className="block mt-4 pt-3 border-t border-[#222] text-[11px] text-[#3b82f6] hover:underline font-body font-semibold uppercase tracking-wider"
                >
                  Browse all forum threads →
                </Link>
              </div>
            )}

            {/* Newsletter Signup */}
            <div className="bg-[#0d1520] border border-[#1e3a5f] p-5">
              <h3 className="font-heading text-[#e0e0e0] font-bold mb-2">Stay Updated</h3>
              <p className="font-body text-[#777] text-xs mb-4">
                Get the latest broadcast engineering news delivered to your inbox.
              </p>
              <Link
                href="/home-page#newsletter"
                className="btn-subscribe text-xs py-2 px-4 inline-block w-full text-center">
                Subscribe Free
              </Link>
            </div>

            {/* Ad placeholder */}
          </aside>
        </div>
      </article>

      {/* Bottom leaderboard */}
      <div className="max-w-container mx-auto px-4 pb-8">
        <AdSlot zone="article-bottom" size="728x90" />
      </div>

      {/* Related Articles Carousel */}
      {relatedArticles.length > 0 && (
        <section className="border-t border-[#1a1a1a] bg-[#0d0d0d] py-10">
          <div className="max-w-container mx-auto px-4">
            <div className="flex items-center justify-between mb-6">
              <div className="flex items-center gap-3">
                <span className="section-label">More News</span>
                <div className="h-px w-16 bg-[#2a2a2a]" />
              </div>
              {relatedArticles.length > CARDS_VISIBLE && (
                <div className="flex items-center gap-2">
                  <button
                    onClick={prevCarousel}
                    disabled={carouselIndex === 0}
                    aria-label="Previous articles"
                    className="w-8 h-8 flex items-center justify-center border border-[#2a2a2a] text-[#666] hover:border-[#3b82f6] hover:text-[#3b82f6] disabled:opacity-30 disabled:cursor-not-allowed transition-colors rounded-sm focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                    <svg
                      width="14"
                      height="14"
                      viewBox="0 0 24 24"
                      fill="none"
                      stroke="currentColor"
                      strokeWidth="2"
                      aria-hidden="true">
                      <polyline points="15 18 9 12 15 6" />
                    </svg>
                  </button>
                  <button
                    onClick={nextCarousel}
                    disabled={carouselIndex >= maxIndex}
                    aria-label="Next articles"
                    className="w-8 h-8 flex items-center justify-center border border-[#2a2a2a] text-[#666] hover:border-[#3b82f6] hover:text-[#3b82f6] disabled:opacity-30 disabled:cursor-not-allowed transition-colors rounded-sm focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
                    <svg
                      width="14"
                      height="14"
                      viewBox="0 0 24 24"
                      fill="none"
                      stroke="currentColor"
                      strokeWidth="2"
                      aria-hidden="true">
                      <polyline points="9 18 15 12 9 6" />
                    </svg>
                  </button>
                </div>
              )}
            </div>

            {/* Carousel track */}
            <div className="overflow-hidden">
              <div
                className="flex gap-5 transition-transform duration-300 ease-in-out"
                style={{
                  transform: `translateX(calc(-${carouselIndex} * (100% / ${CARDS_VISIBLE} + 20px / ${CARDS_VISIBLE})))`,
                }}>
                {relatedArticles.map((related) => (
                  <Link
                    key={related.slug}
                    href={`/news/${related.slug}`}
                    className="group flex-shrink-0 w-[calc(33.333%-14px)]"
                    style={{ minWidth: "calc(33.333% - 14px)" }}>
                    <div className="relative overflow-hidden rounded-sm mb-3 aspect-[16/9]">
                      <AppImage
                        src={related.image}
                        alt={related.alt}
                        fill
                        className="object-cover group-hover:scale-105 transition-transform duration-300"
                        sizes="(max-width: 768px) 100vw, 33vw"
                      />
                    </div>
                    <div className="flex items-center gap-2 mb-1.5">
                      <span className="text-[#3b82f6] font-body text-[10px] font-bold uppercase tracking-wider">
                        {related.category}
                      </span>
                    </div>
                    <h3 className="font-heading text-[#e0e0e0] text-sm font-bold leading-snug group-hover:text-[#3b82f6] transition-colors line-clamp-2 mb-1.5">
                      {related.title}
                    </h3>
                    <p className="text-[#666] font-body text-xs line-clamp-2 leading-relaxed">
                      {related.excerpt}
                    </p>
                    <div className="flex items-center gap-2 mt-2">
                      <span className="text-[#555] font-body text-[11px]">By {related.author}</span>
                      <span className="text-[#444] text-[10px]">·</span>
                      <span className="text-[#555] font-body text-[11px]">{related.readTime}</span>
                    </div>
                  </Link>
                ))}
              </div>
            </div>

            {/* Dot indicators */}
            {relatedArticles.length > CARDS_VISIBLE && (
              <div className="flex justify-center gap-1.5 mt-6">
                {Array.from({ length: maxIndex + 1 }).map((_, i) => (
                  <button
                    key={i}
                    onClick={() => setCarouselIndex(i)}
                    aria-label={`Go to slide ${i + 1}`}
                    className={`w-1.5 h-1.5 rounded-full transition-colors focus:outline-none ${
                      i === carouselIndex ? "bg-[#3b82f6]" : "bg-[#333]"
                    }`}
                  />
                ))}
              </div>
            )}
          </div>
        </section>
      )}

      {/* Email Share Modal */}
      {emailShareOpen && (
        <div
          className="fixed inset-0 z-50 flex items-center justify-center p-4"
          role="dialog"
          aria-modal="true"
          aria-label="Share article via email">
          {/* Backdrop */}
          <div
            className="absolute inset-0 bg-black/70"
            onClick={() => {
              setEmailShareOpen(false);
              setEmailStatus("idle");
            }}
          />
          {/* Modal */}
          <div className="relative bg-[#111] border border-[#2a2a2a] rounded-sm w-full max-w-md p-6 shadow-2xl">
            <button
              onClick={() => {
                setEmailShareOpen(false);
                setEmailStatus("idle");
              }}
              aria-label="Close share dialog"
              className="absolute top-4 right-4 text-[#555] hover:text-[#e0e0e0] transition-colors focus:outline-none focus-visible:ring-1 focus-visible:ring-[#3b82f6]">
              <svg
                width="18"
                height="18"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                strokeWidth="2"
                aria-hidden="true">
                <line x1="18" y1="6" x2="6" y2="18" />
                <line x1="6" y1="6" x2="18" y2="18" />
              </svg>
            </button>

            <div className="flex items-center gap-3 mb-5">
              <div className="w-9 h-9 rounded-sm bg-[#1a2a3a] border border-[#1e3a5f] flex items-center justify-center flex-shrink-0">
                <svg
                  width="16"
                  height="16"
                  viewBox="0 0 24 24"
                  fill="none"
                  stroke="#3b82f6"
                  strokeWidth="2"
                  aria-hidden="true">
                  <rect x="2" y="4" width="20" height="16" rx="2" />
                  <path d="m22 7-8.97 5.7a1.94 1.94 0 0 1-2.06 0L2 7" />
                </svg>
              </div>
              <div>
                <h2 className="font-heading text-[#e0e0e0] font-bold text-base">Share via Email</h2>
                <p className="font-body text-[#666] text-xs mt-0.5">Send this article to a colleague</p>
              </div>
            </div>

            {/* Article preview */}
            <div className="bg-[#0d0d0d] border border-[#1a1a1a] rounded-sm p-3 mb-5">
              <p className="font-body text-[#888] text-[10px] uppercase tracking-wider mb-1">
                {article.category}
              </p>
              <p className="font-heading text-[#e0e0e0] text-sm font-bold line-clamp-2 leading-snug">
                {article.title}
              </p>
            </div>

            {emailStatus === "success" ? (
              <div className="text-center py-6">
                <div className="w-12 h-12 rounded-full bg-[#0d2a1a] border border-[#1a5a2a] flex items-center justify-center mx-auto mb-3">
                  <svg
                    width="20"
                    height="20"
                    viewBox="0 0 24 24"
                    fill="none"
                    stroke="#22c55e"
                    strokeWidth="2.5"
                    aria-hidden="true">
                    <polyline points="20 6 9 17 4 12" />
                  </svg>
                </div>
                <p className="font-heading text-[#e0e0e0] font-bold mb-1">Email Sent!</p>
                <p className="font-body text-[#777] text-sm">The article has been shared successfully.</p>
              </div>
            ) : (
              <div className="space-y-4">
                <div>
                  <label
                    htmlFor="email-to"
                    className="block font-body text-xs text-[#888] uppercase tracking-wider mb-1.5">
                    Recipient Email <span className="text-[#3b82f6]">*</span>
                  </label>
                  <input
                    id="email-to"
                    type="email"
                    value={emailTo}
                    onChange={(e) => setEmailTo(e.target.value)}
                    placeholder="colleague@example.com"
                    className="w-full bg-[#0d0d0d] border border-[#2a2a2a] focus:border-[#3b82f6] text-[#e0e0e0] placeholder-[#444] text-sm font-body px-3 py-2.5 rounded-sm outline-none transition-colors"
                  />
                </div>
                <div>
                  <label
                    htmlFor="email-note"
                    className="block font-body text-xs text-[#888] uppercase tracking-wider mb-1.5">
                    Personal Note <span className="text-[#555]">(optional)</span>
                  </label>
                  <textarea
                    id="email-note"
                    value={emailNote}
                    onChange={(e) => setEmailNote(e.target.value)}
                    placeholder="Thought you might find this interesting..."
                    rows={3}
                    className="w-full bg-[#0d0d0d] border border-[#2a2a2a] focus:border-[#3b82f6] text-[#e0e0e0] placeholder-[#444] text-sm font-body px-3 py-2.5 rounded-sm outline-none transition-colors resize-none"
                  />
                </div>

                {emailStatus === "error" && (
                  <p className="text-xs font-body text-red-400">
                    Failed to send email. Please try again.
                  </p>
                )}

                <button
                  onClick={handleEmailShare}
                  disabled={emailSending || !emailTo.trim()}
                  className="w-full btn-subscribe py-2.5 text-sm font-bold disabled:opacity-50 disabled:cursor-not-allowed flex items-center justify-center gap-2">
                  {emailSending ? (
                    <>
                      <svg
                        className="animate-spin"
                        width="14"
                        height="14"
                        viewBox="0 0 24 24"
                        fill="none"
                        stroke="currentColor"
                        strokeWidth="2"
                        aria-hidden="true">
                        <path d="M21 12a9 9 0 1 1-6.219-8.56" />
                      </svg>
                      Sending...
                    </>
                  ) : (
                    "Send Article"
                  )}
                </button>
              </div>
            )}
          </div>
        </div>
      )}

      {/* Toast Notification */}
      {saveToast && (
        <div
          role="status"
          aria-live="polite"
          className="fixed bottom-4 right-4 bg-[#1a1a1a] border border-[#3b82f6] text-white px-4 py-3 rounded-sm text-sm font-body shadow-lg z-50">
          {saveToast}
        </div>
      )}

      <Footer />
    </div>
  );
}
