@extends('components.layout')

@php
    $metaDescription = $article->meta_description ?: Str::limit(strip_tags($article->excerpt ?? ''), 160, '…');
    $ogImage = $article->featured_image ? asset('storage/' . $article->featured_image) : ($settings['site_og_image'] ?? asset('images/og-default.png'));
    $canonical = url()->current();

    $articleSchema = json_encode([
        '@context' => 'https://schema.org',
        '@type' => 'NewsArticle',
        'headline' => $article->title,
        'description' => $article->excerpt,
        'datePublished' => $article->published_at?->toIso8601String(),
        'dateModified' => $article->updated_at?->toIso8601String(),
        'author' => [
            '@type' => 'Person',
            'name' => $article->author->name ?? 'LOCAL PULSE',
        ],
        'publisher' => [
            '@type' => 'Organization',
            'name' => $settings['site_name'] ?? 'LOCAL PULSE',
            'logo' => [
                '@type' => 'ImageObject',
                'url' => asset('images/logo.png'),
            ],
        ],
        'image' => $ogImage,
        'mainEntityOfPage' => $canonical,
    ]);

    $breadcrumbItems = [];
    foreach ($breadcrumbs as $i => $crumb) {
        $breadcrumbItems[] = [
            '@type' => 'ListItem',
            'position' => $i + 1,
            'name' => $crumb['name'],
            'item' => $crumb['url'],
        ];
    }
    $breadcrumbSchema = json_encode([
        '@context' => 'https://schema.org',
        '@type' => 'BreadcrumbList',
        'itemListElement' => $breadcrumbItems,
    ]);

    $twitterHandle = $settings['twitter_handle'] ?? '@localpulse';
@endphp

@section('title', $article->meta_title ?: ($article->title . ' | ' . ($settings['site_name'] ?? 'LOCAL PULSE')))

@push('seo-meta')
    <meta name="description" content="{{ $metaDescription }}">
    <meta name="keywords" content="{{ $article->meta_keywords ?? ($article->category->name ?? 'News') . ', ' . ($article->location->name ?? 'Australia') . ', local news' }}">
    <meta name="author" content="{{ $article->author->name ?? 'LOCAL PULSE' }}">
    <meta name="robots" content="index, follow">
    <link rel="canonical" href="{{ $canonical }}">

    <!-- Open Graph -->
    <meta property="og:type" content="article">
    <meta property="og:title" content="{{ $article->title }}">
    <meta property="og:description" content="{{ $article->excerpt }}">
    <meta property="og:image" content="{{ $ogImage }}">
    <meta property="og:image:width" content="1200">
    <meta property="og:image:height" content="630">
    <meta property="og:url" content="{{ $canonical }}">
    <meta property="og:site_name" content="{{ $settings['site_name'] ?? 'LOCAL PULSE' }}">
    <meta property="article:published_time" content="{{ $article->published_at?->toIso8601String() }}">
    <meta property="article:modified_time" content="{{ $article->updated_at?->toIso8601String() }}">
    @if($article->author)
        <meta property="article:author" content="{{ $article->author->name }}">
    @endif
    @if($article->category)
        <meta property="article:section" content="{{ $article->category->name }}">
    @endif

    <!-- Twitter Card -->
    <meta name="twitter:card" content="summary_large_image">
    <meta name="twitter:site" content="{{ $twitterHandle }}">
    <meta name="twitter:creator" content="{{ $twitterHandle }}">
    <meta name="twitter:title" content="{{ $article->title }}">
    <meta name="twitter:description" content="{{ $article->excerpt }}">
    <meta name="twitter:image" content="{{ $ogImage }}">

    <!-- Structured Data -->
    <script type="application/ld+json">{!! $articleSchema !!}</script>
    <script type="application/ld+json">{!! $breadcrumbSchema !!}</script>
@endpush

@section('content')
    <article class="max-w-4xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
        <!-- Breadcrumbs -->
        <nav class="flex items-center gap-2 text-sm text-gray-500 mb-6">
            @foreach($breadcrumbs as $crumb)
                @if($loop->last)
                    <span class="text-gray-900 font-medium">{{ $crumb['name'] }}</span>
                @else
                    <a href="{{ $crumb['url'] }}" class="hover:text-gray-700">{{ $crumb['name'] }}</a>
                    <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"/></svg>
                @endif
            @endforeach
        </nav>

        <!-- Article Header -->
        <header class="mb-8">
            @if($article->category)
                <span class="category-badge inline-block px-3 py-1 bg-gray-900 text-white text-xs font-semibold uppercase tracking-wide mb-4">
                    {{ $article->category->name }}
                </span>
            @endif

            <h1 class="text-4xl md:text-5xl font-bold text-gray-900 leading-tight mb-4">{{ $article->title }}</h1>

            @if($article->excerpt)
                <p class="text-xl text-gray-600 leading-relaxed">{{ $article->excerpt }}</p>
            @endif

            <div class="flex flex-wrap items-center gap-4 mt-6 pt-6 border-t border-gray-200">
                @if($article->author)
                    <div class="flex items-center gap-3">
                        @if($article->author->avatar)
                            <img src="{{ asset('storage/' . $article->author->avatar) }}" alt="{{ $article->author->name }}" class="w-10 h-10 rounded-full object-cover">
                        @else
                            <div class="w-10 h-10 rounded-full bg-gray-200 flex items-center justify-center">
                                <span class="text-sm font-bold text-gray-600">{{ strtoupper(substr($article->author->name, 0, 2)) }}</span>
                            </div>
                        @endif
                        <div>
                            <a href="{{ route('authors.show', $article->author->slug) }}" class="text-sm font-semibold text-gray-900 hover:text-red-600">{{ $article->author->name }}</a>
                            @if($article->author->role)
                                <p class="text-xs text-gray-500">{{ ucfirst($article->author->role) }}</p>
                            @endif
                        </div>
                    </div>
                @endif

                <div class="flex items-center gap-2 text-sm text-gray-500">
                    <span>{{ $article->published_at?->format('d M Y \a\t g:i A') }}</span>
                    @if($article->published_at != $article->updated_at)
                        <span class="text-gray-400">(Updated {{ $article->updated_at?->format('d M Y') }})</span>
                    @endif
                    <span>&middot;</span>
                    <span>{{ $article->reading_time ?? $article->calculateReadingTime() }} min read</span>
                </div>

                @if($article->location)
                    <span class="text-sm text-gray-500 flex items-center gap-1">
                        <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243A8 8 0 1117.657 16.657z"/><circle cx="12" cy="11" r="1.414" fill="currentColor"/></svg>
                        {{ $article->location->name }}
                    </span>
                @endif
            </div>
        </header>

        <!-- Featured Image -->
        @if($article->featured_image)
            <div class="aspect-video overflow-hidden rounded-lg mb-8">
                <img src="{{ asset('storage/' . $article->featured_image) }}" alt="{{ $article->title }}" class="w-full h-full object-cover">
            </div>
        @endif

<!-- Article Body -->
        <div class="prose prose-lg max-w-none mb-8">
            <div class="article-body text-gray-800 leading-relaxed space-y-6">
                {!! $article->body !!} 
            </div>
        </div>

        <!-- Tags -->
        @if($article->tags->isNotEmpty())
            <div class="flex flex-wrap gap-2 mb-8 pt-6 border-t border-gray-200">
                <span class="text-sm font-semibold text-gray-500 mr-2">Tags:</span>
                @foreach($article->tags as $tag)
                    <a href="{{ route('search', ['q' => $tag->slug]) }}" class="px-3 py-1 bg-gray-100 text-gray-700 text-sm rounded-full hover:bg-gray-200 transition-colors">{{ $tag->name }}</a>
                @endforeach
            </div>
        @endif

        <!-- Share + Save Bar -->
        <div class="flex flex-wrap items-center gap-3 mb-8 pt-6 border-t border-gray-200">
            <span class="text-sm font-semibold text-gray-500">Share:</span>
            <a href="https://twitter.com/intent/tweet?text={{ urlencode($article->title) }}&url={{ urlencode(route('articles.show', $article->slug)) }}" target="_blank" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-gray-900 hover:text-white hover:border-gray-900" title="Share on X / Twitter">
                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24"><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>
            <a href="https://www.facebook.com/sharer/sharer.php?u={{ urlencode(route('articles.show', $article->slug)) }}" target="_blank" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-blue-600 hover:text-white hover:border-blue-600" title="Share on Facebook">
                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24"><path d="M24 12.073c0-6.627-5.373-12-12-12s-12 5.373-12 12c0 5.99 4.388 10.954 10.125 11.854v-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>
            <a href="https://www.linkedin.com/shareArticle?mini=true&url={{ urlencode(route('articles.show', $article->slug)) }}&title={{ urlencode($article->title) }}" target="_blank" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-blue-700 hover:text-white hover:border-blue-700" title="Share on LinkedIn">
                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24"><path d="M20.447 20.452h-3.554v-5.569c0-1.328-.027-3.037-1.852-3.037-1.853 0-2.136 1.445-2.136 2.939v5.667H9.351V9h3.414v1.561h.046c.477-.9 1.637-1.85 3.37-1.85 3.601 0 4.267 2.37 4.267 5.455v6.286zM5.337 7.433c-1.144 0-2.063-.926-2.063-2.065 0-1.138.92-2.063 2.063-2.063 1.14 0 2.064.925 2.064 2.063 0 1.139-.925 2.065-2.064 2.065zm1.782 13.019H3.555V9h3.564v11.452zM22.225 0H1.771C.792 0 0 .774 0 1.729v20.542C0 23.227.792 24 1.771 24h20.451C23.2 24 24 23.227 24 22.271V1.729C24 .774 23.2 0 22.222 0h.003z"/></svg>
            </a>
            <a href="https://wa.me/?text={{ urlencode($article->title . ' ' . route('articles.show', $article->slug)) }}" target="_blank" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-green-600 hover:text-white hover:border-green-600" title="Share on WhatsApp">
                <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 24 24"><path d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413Z"/></svg>
            </a>
            <a href="mailto:?subject={{ urlencode($article->title) }}&body={{ urlencode(route('articles.show', $article->slug)) }}" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-gray-700 hover:text-white hover:border-gray-700" title="Share via email">
                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 8l7.89 5.26a2 2 0 002.22 0L21 8M5 19h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
            </a>
            <button onclick="(function(){navigator.clipboard.writeText(window.location.href).then(()=>{this.textContent='Copied!'; setTimeout(()=>this.textContent='',1500)});}).call(this)" class="w-9 h-9 rounded-full border border-gray-200 flex items-center justify-center text-gray-600 hover:bg-gray-200" title="Copy link">
                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"/></svg>
            </button>

            @auth
                <form action="{{ route('articles.save', $article->slug) }}" method="POST" class="ml-auto">
                    @csrf
                    <button type="submit" class="inline-flex items-center gap-2 px-4 py-2 border {{ $isSaved ? 'bg-red-600 text-white border-red-600' : 'border-gray-300 text-gray-700 hover:bg-gray-50' }} rounded-full text-sm font-semibold transition-colors">
                        <svg class="w-4 h-4" fill="{{ $isSaved ? 'currentColor' : 'none' }}" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 5a2 2 0 012-2h10a2 2 0 012 2v16l-7-3.5L5 21V5z"/></svg>
                        {{ $isSaved ? 'Saved' : 'Save' }}
                    </button>
                </form>
            @endauth
        </div>

        @auth
        <script>
            (function () {
                if (!window.IntersectionObserver) return;
                const article = document.querySelector('.article-body');
                if (!article) return;
                let maxScroll = 0;
                const startTime = Date.now();
                const observer = new IntersectionObserver((entries) => {
                    entries.forEach(e => {
                        const depth = Math.round(e.intersectionRatio * 100);
                        if (depth > maxScroll) maxScroll = depth;
                    });
                }, { threshold: Array.from({length: 20}, (_, i) => (i + 1) / 20) });
                observer.observe(article);

                let sendTimeout = null;
                const send = () => {
                    const seconds = Math.round((Date.now() - startTime) / 1000);
                    if (maxScroll < 10 || seconds < 5) return;
                    fetch('{{ route("feed.track") }}', {
                        method: 'POST',
                        headers: {'Content-Type': 'application/json', 'X-CSRF-TOKEN': '{{ csrf_token() }}', 'Accept': 'application/json'},
                        body: JSON.stringify({article_id: {{ $article->id }}, scroll_depth: maxScroll, read_seconds: seconds}),
                        keepalive: true
                    });
                };
                ['scroll', 'beforeunload', 'visibilitychange'].forEach(evt => {
                    window.addEventListener(evt, () => {
                        clearTimeout(sendTimeout);
                        sendTimeout = setTimeout(send, 1500);
                    });
                });
            })();
        </script>
        @endauth

        <!-- Author Card -->
        @if($article->author)
            <div class="bg-gray-50 rounded-lg p-6 mb-8">
                <div class="flex items-start gap-4">
                    @if($article->author->avatar)
                        <img src="{{ asset('storage/' . $article->author->avatar) }}" alt="{{ $article->author->name }}" class="w-16 h-16 rounded-full object-cover">
                    @else
                        <div class="w-16 h-16 rounded-full bg-gray-200 flex items-center justify-center flex-shrink-0">
                            <span class="text-xl font-bold text-gray-600">{{ strtoupper(substr($article->author->name, 0, 2)) }}</span>
                        </div>
                    @endif
                    <div>
                        <h3 class="text-lg font-bold text-gray-900">{{ $article->author->name }}</h3>
                        @if($article->author->role)
                            <p class="text-sm text-gray-500">{{ ucfirst($article->author->role) }}</p>
                        @endif
                        @if($article->author->bio)
                            <p class="text-gray-600 text-sm mt-2">{{ $article->author->bio }}</p>
                        @endif
                        <a href="{{ route('authors.show', $article->author->slug) }}" class="text-red-600 text-sm font-semibold hover:underline mt-2 inline-block">View all articles</a>
                    </div>
                </div>
            </div>
        @endif

        <!-- Comments Section -->
        <div class="border-t border-gray-200 pt-8">
            <h2 class="text-2xl font-bold text-gray-900 mb-6">Comments</h2>

            @auth
                <form action="{{ route('articles.comment', $article->slug) }}" method="POST" class="mb-8">
                    @csrf
                    <textarea name="body" rows="3" placeholder="Join the conversation..." class="w-full border border-gray-300 rounded-lg p-3 text-sm focus:outline-none focus:ring-2 focus:ring-red-600 focus:border-transparent" required></textarea>
                    <button type="submit" class="mt-2 bg-gray-900 text-white px-4 py-2 rounded-md text-sm font-semibold hover:bg-gray-800 transition-colors">Post Comment</button>
                    <p class="text-xs text-gray-500 mt-1">Comments are moderated before appearing.</p>
                </form>
            @else
                <div class="bg-gray-50 rounded-lg p-6 mb-8 text-center">
                    <p class="text-gray-600 mb-3">Please log in to join the conversation.</p>
                    <a href="{{ route('login') }}" class="text-red-600 font-semibold hover:underline">Log in</a>
                </div>
            @endauth

            @if($article->comments->isNotEmpty())
                <div class="space-y-6">
                    @foreach($article->comments as $comment)
                        <div class="border-b border-gray-100 pb-6">
                            <div class="flex items-start gap-3">
                                <div class="w-8 h-8 rounded-full bg-gray-200 flex items-center justify-center flex-shrink-0">
                                    <span class="text-xs font-bold text-gray-600">{{ strtoupper(substr($comment->user->name ?? 'U', 0, 1)) }}</span>
                                </div>
                                <div class="flex-1">
                                    <div class="flex items-center gap-2 mb-1">
                                        <span class="font-semibold text-sm text-gray-900">{{ $comment->user->name ?? 'User' }}</span>
                                        <span class="text-xs text-gray-500">{{ $comment->created_at?->diffForHumans() ?? '—' }}</span>
                                    </div>
                                    <p class="text-gray-700 text-sm">{{ $comment->body }}</p>
                                </div>
                            </div>
                        </div>
                    @endforeach
                </div>
            @else
                <p class="text-gray-500 text-center py-8">No comments yet. Be the first to share your thoughts!</p>
            @endif
        </div>

        <!-- Related Stories -->
        @if($relatedArticles->isNotEmpty())
            <div class="mt-12 pt-8 border-t border-gray-200">
                <h2 class="text-2xl font-bold text-gray-900 mb-6">Related Stories</h2>
                <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
                    @foreach($relatedArticles as $article)
                        <x-article-card :article="$article" />
                    @endforeach
                </div>
            </div>
        @endif
    </article>
@endsection