{{-- OG locale mapping --}}
@php
    $ogLocaleMap = [
        'fr' => 'fr_FR', 'en' => 'en_US', 'it' => 'it_IT', 'ar' => 'ar_SA',
        'de' => 'de_DE', 'es' => 'es_ES', 'pt' => 'pt_BR', 'ru' => 'ru_RU',
    ];
@endphp

{{-- Hreflang tags --}}
@if(!empty($localeUrls))
    @php
        $pageSuffix = (!empty($currentPage) && $currentPage > 1) ? '/' . $currentPage : '';
    @endphp
    @foreach($localeUrls as $code => $path)
        <link rel="alternate" hreflang="{{ $code }}" href="{{ url($path . $pageSuffix) }}" />
    @endforeach
    <link rel="alternate" hreflang="x-default" href="{{ url(($localeUrls['fr'] ?? '/fr') . $pageSuffix) }}" />
@endif

{{-- Canonical URL --}}
@php
    $canonicalUrl = url()->current();
@endphp
<link rel="canonical" href="{{ $canonicalUrl }}" />

{{-- Rel prev/next for split posts --}}
@if(!empty($totalPages) && $totalPages > 1)
    @php
        $baseUrl = (!empty($post) && !empty($locale))
            ? route('content.show', ['locale' => $locale, 'slug' => $post->translation($locale)?->slug])
            : url()->current();
    @endphp
    @if($currentPage > 1)
        <link rel="prev" href="{{ $currentPage === 2 ? $baseUrl : $baseUrl . '/' . ($currentPage - 1) }}" />
    @endif
    @if($currentPage < $totalPages)
        <link rel="next" href="{{ $baseUrl . '/' . ($currentPage + 1) }}" />
    @endif
@endif

{{-- Open Graph meta tags --}}
@php
    $ogTitle = '';
    $ogDescription = '';
    $ogImage = '';
    $ogType = 'website';
    $ogLocale = $locale ?? 'fr';
    $ogLocaleFormatted = $ogLocaleMap[$ogLocale] ?? $ogLocale;

    if (!empty($post)) {
        $ogTrans = $post->translation($ogLocale);
        $ogTitle = $ogTrans?->meta_title ?: $ogTrans?->title ?: '';
        $ogDescription = $ogTrans?->meta_description ?: Str::limit(strip_tags($ogTrans?->body ?? ''), 200);

        // Enrich for subpages
        if (!empty($currentPage) && $currentPage > 1 && !empty($totalPages) && !empty($globalToc[$currentPage - 1]['title'])) {
            $chapterTitle = $globalToc[$currentPage - 1]['title'];
            $ogTitle = $ogTitle . ' - ' . $chapterTitle . ' (' . $currentPage . '/' . $totalPages . ')';
            $ogDescription = Str::limit(strip_tags($pageBody ?? ''), 200);
        }

        $ogImage = $ogTrans?->og_image ?? '';
        $ogType = $post->isPage() ? 'website' : 'article';
    } elseif (!empty($category)) {
        $catTrans = $category->translation($ogLocale);
        $ogTitle = $catTrans?->name ?? '';
        $ogDescription = $catTrans?->description ?? '';
    }

    if (empty($ogTitle)) {
        $ogTitle = config('app.name', 'Pierre2.net');
    }
@endphp
<meta property="og:title" content="{{ $ogTitle }}" />
<meta property="og:type" content="{{ $ogType }}" />
<meta property="og:url" content="{{ $canonicalUrl }}" />
@if($ogDescription)
<meta property="og:description" content="{{ $ogDescription }}" />
@endif
@if($ogImage)
<meta property="og:image" content="{{ Str::startsWith($ogImage, 'http') ? $ogImage : asset('storage/' . $ogImage) }}" />
@endif
<meta property="og:site_name" content="Pierre2.net" />
<meta property="og:locale" content="{{ $ogLocaleFormatted }}" />
@if(!empty($localeUrls))
    @foreach($localeUrls as $code => $path)
        @if($code !== $ogLocale)
<meta property="og:locale:alternate" content="{{ $ogLocaleMap[$code] ?? $code }}" />
        @endif
    @endforeach
@endif

{{-- Twitter Card meta tags --}}
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:title" content="{{ $ogTitle }}" />
@if($ogDescription)
<meta name="twitter:description" content="{{ $ogDescription }}" />
@endif
@if($ogImage)
<meta name="twitter:image" content="{{ Str::startsWith($ogImage, 'http') ? $ogImage : asset('storage/' . $ogImage) }}" />
@endif

{{-- Article timestamps --}}
@if(!empty($post) && !$post->isPage())
<meta property="article:published_time" content="{{ ($post->published_at ?? $post->created_at)?->toIso8601String() }}" />
@if($post->updated_at)
<meta property="article:modified_time" content="{{ $post->updated_at->toIso8601String() }}" />
@endif
@endif

{{-- JSON-LD Structured Data --}}
@php
    $siteName = 'Pierre2.net';
    $siteUrl = rtrim(config('app.url'), '/');
    $jsonLdScripts = [];

    // WebSite schema (all pages)
    $webSiteSchema = [
        '@context' => 'https://schema.org',
        '@type' => 'WebSite',
        'name' => $siteName,
        'url' => $siteUrl,
    ];
    $webSiteSchema['potentialAction'] = [
        [
            '@type' => 'SearchAction',
            'target' => [
                '@type' => 'EntryPoint',
                'urlTemplate' => $siteUrl . '/' . $ogLocale . '/search?q={search_term_string}',
            ],
            'query-input' => [
                '@type' => 'PropertyValueSpecification',
                'valueRequired' => true,
                'valueName' => 'search_term_string',
            ],
        ],
    ];
    $jsonLdScripts[] = $webSiteSchema;

    // WebPage schema (all pages)
    $webPageSchema = [
        '@context' => 'https://schema.org',
        '@type' => 'WebPage',
        'name' => $ogTitle,
        'url' => $canonicalUrl,
        'inLanguage' => $ogLocale,
    ];
    if ($ogDescription) {
        $webPageSchema['description'] = $ogDescription;
    }
    $jsonLdScripts[] = $webPageSchema;

    // Article + Person + BreadcrumbList for posts
    if (!empty($post) && !$post->isPage()) {
        $articleTrans = $post->translation($ogLocale);

        $articleSchema = [
            '@context' => 'https://schema.org',
            '@type' => 'Article',
            'headline' => $articleTrans?->title ?? $ogTitle,
            'url' => $canonicalUrl,
            'inLanguage' => $ogLocale,
        ];

        if ($post->published_at) {
            $articleSchema['datePublished'] = $post->published_at->toIso8601String();
        } elseif ($post->created_at) {
            $articleSchema['datePublished'] = $post->created_at->toIso8601String();
        }

        if ($post->updated_at) {
            $articleSchema['dateModified'] = $post->updated_at->toIso8601String();
        }

        if ($ogImage) {
            $articleSchema['image'] = Str::startsWith($ogImage, 'http') ? $ogImage : asset('storage/' . $ogImage);
        }

        // Author
        $author = $post->author;
        if ($author) {
            $personSchema = [
                '@type' => 'Person',
                'name' => $author->name,
            ];
            $articleSchema['author'] = $personSchema;
        }

        // Word count
        $wordCount = str_word_count(strip_tags($articleTrans?->body ?? ''));
        if ($wordCount > 0) {
            $articleSchema['wordCount'] = $wordCount;
        }

        // Article section (category)
        if ($post->relationLoaded('categories') && $post->categories->isNotEmpty()) {
            $catName = $post->categories->first()->translation($ogLocale)?->name;
            if ($catName) {
                $articleSchema['articleSection'] = $catName;
            }
        }

        // Keywords from tags
        if ($post->relationLoaded('tags') && $post->tags->isNotEmpty()) {
            $keywords = $post->tags
                ->map(fn ($tag) => $tag->translation($ogLocale)?->name)
                ->filter()
                ->values()
                ->all();
            if ($keywords) {
                $articleSchema['keywords'] = implode(', ', $keywords);
            }
        }

        $jsonLdScripts[] = $articleSchema;

        // BreadcrumbList
        $breadcrumbItems = [
            [
                '@type' => 'ListItem',
                'position' => 1,
                'name' => $siteName,
                'item' => $siteUrl . '/' . $ogLocale,
            ],
        ];

        // Add category if available
        if ($post->relationLoaded('categories') && $post->categories->isNotEmpty()) {
            $firstCat = $post->categories->first();
            $catTranslation = $firstCat->translation($ogLocale);
            if ($catTranslation && $catTranslation->slug) {
                $breadcrumbItems[] = [
                    '@type' => 'ListItem',
                    'position' => 2,
                    'name' => $catTranslation->name,
                    'item' => $siteUrl . '/' . $ogLocale . '/category/' . $catTranslation->slug,
                ];
            }
        }

        $breadcrumbItems[] = [
            '@type' => 'ListItem',
            'position' => count($breadcrumbItems) + 1,
            'name' => $articleTrans?->title ?? $ogTitle,
        ];

        $jsonLdScripts[] = [
            '@context' => 'https://schema.org',
            '@type' => 'BreadcrumbList',
            'itemListElement' => $breadcrumbItems,
        ];
    }

    // BreadcrumbList for category pages
    if (!empty($category)) {
        $catTransBc = $category->translation($ogLocale);
        $jsonLdScripts[] = [
            '@context' => 'https://schema.org',
            '@type' => 'BreadcrumbList',
            'itemListElement' => [
                [
                    '@type' => 'ListItem',
                    'position' => 1,
                    'name' => $siteName,
                    'item' => $siteUrl . '/' . $ogLocale,
                ],
                [
                    '@type' => 'ListItem',
                    'position' => 2,
                    'name' => $catTransBc?->name ?? '',
                ],
            ],
        ];
    }
@endphp
@foreach($jsonLdScripts as $schema)
<script type="application/ld+json">{!! json_encode($schema, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) !!}</script>
@endforeach