import { getTranslations, setRequestLocale } from 'next-intl/server'
import { mockDb } from '@/lib/mockDb'
import ListingCard from '@/components/ListingCard'
import { notFound } from 'next/navigation'
import Image from 'next/image'
import { Link } from '@/i18n/routing'
import { Phone, Globe, MapPin, Clock, Star, MessageSquare, Share2 } from 'lucide-react'
import SaveButton from './SaveButton'
import DetailTracker from './DetailTracker'
import type { Metadata } from 'next'
import { SITE_URL } from '@/lib/seo'

interface DetailPageProps {
  params: Promise<{ locale: string; category: string; slug: string }>
}

export const dynamic = 'force-dynamic'

export async function generateMetadata({ params }: DetailPageProps): Promise<Metadata> {
  const { locale, slug } = await params
  const listing = await mockDb.getListingBySlug(slug)
  if (!listing) return {}

  const name = locale === 'ru' ? listing.nameRu : locale === 'en' ? listing.nameEn : listing.nameTr
  const description = locale === 'ru' ? listing.descriptionRu : locale === 'en' ? listing.descriptionEn : listing.descriptionTr
  const title = `${name} — Marmaris Local`
  const image = listing.images?.[0]?.url

  return {
    title,
    description,
    openGraph: {
      title,
      description,
      url: `${SITE_URL}/${locale}/${listing.category?.slug || 'isletme'}/${listing.slug}`,
      siteName: 'Marmaris Local',
      type: 'website',
      ...(image ? { images: [{ url: image }] } : {}),
    },
    twitter: {
      card: 'summary_large_image',
      title,
      description,
    },
  }
}

export default async function ListingDetailPage({ params }: DetailPageProps) {
  const { locale, category, slug } = await params
  setRequestLocale(locale)

  const t = await getTranslations('detail')

  const listing = await mockDb.getListingBySlug(slug)
  if (!listing) {
    notFound()
  }

  // Fetch similar listings in same category (limit to 3, excluding current)
  const allCategoryListings = await mockDb.getListings({
    categoryId: listing.categoryId
  })
  const relatedListings = allCategoryListings
    .filter(l => l.id !== listing.id)
    .slice(0, 3)

  // Fetch newest 3 listings (excluding current)
  const allListings = await mockDb.getListings()
  const latestListings = allListings
    .filter(l => l.id !== listing.id)
    .slice(0, 3)

  // Fetch Instagram Feed Cache
  const instagramFeed = await mockDb.getInstagramFeedCacheByListingId(listing.id)
  const instagramPosts = instagramFeed?.posts ? (instagramFeed.posts as any[]) : []

  // Localized values
  const name =
    locale === 'ru'
      ? listing.nameRu
      : locale === 'en'
        ? listing.nameEn
        : listing.nameTr

  const description =
    locale === 'ru'
      ? listing.descriptionRu
      : locale === 'en'
        ? listing.descriptionEn
        : listing.descriptionTr

  const priceSymbols = '₺'.repeat(listing.priceRange)
  const categorySlug = listing.category?.slug || 'isletme'
  const rawId = listing.id; // örn: "gm-ChIJY_2Q8tbJvxQRs7xwaSne0is"
  const hasGooglePlaceId = rawId.startsWith('gm-');
  const placeId = hasGooglePlaceId ? rawId.replace('gm-', '') : null;
  // Format WhatsApp Link
  const getWhatsAppLink = (number: string) => {
    const cleanNum = number.replace(/\D/g, '')
    return `https://wa.me/${cleanNum}`
  }

  // WhatsApp Share deep link text
  const getShareLink = () => {
    const text = encodeURIComponent(`Marmaris Local'da harika bir yer keşfettim: ${name}\nDetayları incele: https://marmarislocal.com/${locale}/${categorySlug}/${listing.slug}`)
    return `https://wa.me/?text=${text}`
  }

  // schema.org LocalBusiness structured data
  const schemaTypeByCategory: Record<string, string> = {
    restoran: 'Restaurant',
    apart: 'LodgingBusiness',
    isletme: 'LocalBusiness',
  }

  const jsonLd = {
    '@context': 'https://schema.org',
    '@type': schemaTypeByCategory[categorySlug] || 'LocalBusiness',
    name,
    description,
    image: listing.images?.map(img => img.url) || undefined,
    url: `https://marmarislocal.com/${locale}/${categorySlug}/${listing.slug}`,
    address: {
      '@type': 'PostalAddress',
      streetAddress: listing.address,
      addressLocality: 'Marmaris',
      addressCountry: 'TR',
    },
    ...(listing.latitude && listing.longitude
      ? { geo: { '@type': 'GeoCoordinates', latitude: listing.latitude, longitude: listing.longitude } }
      : {}),
    ...(listing.phone ? { telephone: listing.phone } : {}),
    ...(listing.website ? { sameAs: [listing.website] } : {}),
    priceRange: priceSymbols || undefined,
    ...(listing.openingHours && (listing.openingHours as any).all
      ? { openingHours: (listing.openingHours as any).all }
      : {}),
  }

  return (
    <div className="flex-1 flex flex-col min-h-screen bg-stone text-ink">
      <script
        type="application/ld+json"
        dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
      />
      <DetailTracker listingId={listing.id} />

      <main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-10 flex-1 space-y-10">

        {/* Breadcrumb */}
        <div className="text-xs font-mono uppercase tracking-wider text-shutter flex items-center gap-2">
          <span className="hover:text-turquoise transition-colors">marmaris local</span>
          <span>/</span>
          <span className="hover:text-turquoise transition-colors">
            {locale === 'ru' ? listing.category?.nameRu : locale === 'en' ? listing.category?.nameEn : listing.category?.nameTr}
          </span>
          <span>/</span>
          <span className="text-pine font-bold">{name}</span>
        </div>

        {/* Hero Details Block */}
        <div className="bg-paper rounded-3xl border border-pine/8 p-6 sm:p-10 shadow-sm space-y-8">
          <div className="flex flex-col lg:flex-row gap-10">

            {/* Left: Gallery Panel */}
            <div className="flex-1 space-y-4">
              <div className="aspect-[16/10] w-full relative rounded-2xl overflow-hidden bg-stone-deep shadow-sm">
                <Image
                  src={listing.images && listing.images.length > 0 ? listing.images[0].url : 'https://images.unsplash.com/photo-1555396273-367ea4eb4db5?w=800&auto=format&fit=crop&q=80'}
                  alt={name}
                  fill
                  priority
                  className="object-cover"
                />
              </div>

              {/* Thumbnails if multiple images exist */}
              {listing.images && listing.images.length > 1 && (
                <div className="grid grid-cols-4 gap-4">
                  {listing.images.slice(1, 5).map((img, idx) => (
                    <div key={img.id} className="aspect-square relative rounded-xl overflow-hidden bg-stone-deep border border-pine/5 shadow-sm">
                      <Image
                        src={img.url}
                        alt={`${name} thumbnail ${idx + 1}`}
                        fill
                        className="object-cover hover:scale-105 transition duration-300"
                      />
                    </div>
                  ))}
                </div>
              )}
            </div>

            {/* Right: Info Panel */}
            <div className="flex-1 flex flex-col justify-between space-y-6">
              <div className="space-y-4">
                <div className="flex flex-wrap gap-2.5 items-center">
                  <span className="text-[10px] font-mono text-bougainvillea font-bold uppercase tracking-wider bg-bougainvillea/5 border border-bougainvillea/10 px-2.5 py-1 rounded-full">
                    {locale === 'ru' ? listing.category?.nameRu : locale === 'en' ? listing.category?.nameEn : listing.category?.nameTr}
                  </span>

                  {listing.isLocalApproved && (
                    <span className="inline-flex items-center gap-1 text-[10px] font-mono text-turquoise font-bold uppercase tracking-wider bg-turquoise/5 border border-turquoise/10 px-2.5 py-1 rounded-full">
                      ★ {t('approved')}
                    </span>
                  )}
                </div>

                <h1 className="font-heading font-extrabold text-2xl sm:text-4xl text-pine leading-tight lowercase">
                  {name}
                </h1>

                {/* Stars and Price level */}
                <div className="flex items-center gap-6 font-mono text-sm border-b border-dashed border-pine/8 pb-4">
                  {listing.rating && (
                    <div className="flex items-center gap-1.5 text-gold font-bold">
                      <Star className="w-4 h-4 fill-gold stroke-gold" />
                      <span>{t('rating')}: {listing.rating.toFixed(1)}</span>
                    </div>
                  )}
                  <div className="text-pine font-semibold">
                    <span>{t('price')}: {priceSymbols}</span>
                  </div>
                </div>
              </div>

              {/* Description */}
              <div className="text-ink/80 text-sm sm:text-base leading-relaxed font-medium">
                {description ? description : <span className="italic text-ink/50">{t('no_description', { defaultValue: 'Bu işletme için henüz bir açıklama eklenmemiştir.' })}</span>}
              </div>

              {/* Contact Info (Only if at least one exists) */}
              {(listing.phone || listing.website || listing.instagram) && (
                <div className="space-y-4 pt-6 border-t border-pine/10">
                  <h3 className="font-heading font-bold text-xs text-pine uppercase tracking-wider">{t('contact')}</h3>
                  <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
                    {listing.phone && (
                      <a id="listing-contact-phone" href={`tel:${listing.phone}`} className="flex items-center gap-3 p-3 rounded-xl border border-pine/10 hover:border-turquoise/30 hover:bg-turquoise/5 transition-colors group">
                        <div className="w-8 h-8 rounded-full bg-pine/5 flex items-center justify-center group-hover:bg-turquoise/10 transition-colors">
                          <Phone className="w-4 h-4 text-pine group-hover:text-turquoise transition-colors" />
                        </div>
                        <div className="flex flex-col">
                          <span className="text-[10px] font-bold text-pine/50 uppercase tracking-wider">{t('phone')}</span>
                          <span className="text-sm font-medium text-ink group-hover:text-pine transition-colors">{listing.phone}</span>
                        </div>
                      </a>
                    )}
                    {listing.website && (
                      <a id="listing-contact-website" href={listing.website.startsWith('http') ? listing.website : `https://${listing.website}`} target="_blank" rel="noopener noreferrer" className="flex items-center gap-3 p-3 rounded-xl border border-pine/10 hover:border-turquoise/30 hover:bg-turquoise/5 transition-colors group">
                        <div className="w-8 h-8 rounded-full bg-pine/5 flex items-center justify-center group-hover:bg-turquoise/10 transition-colors">
                          <Globe className="w-4 h-4 text-pine group-hover:text-turquoise transition-colors" />
                        </div>
                        <div className="flex flex-col">
                          <span className="text-[10px] font-bold text-pine/50 uppercase tracking-wider">{t('website')}</span>
                          <span className="text-sm font-medium text-ink group-hover:text-pine transition-colors truncate max-w-[150px]">
                            {listing.website.replace(/^https?:\/\//, '').replace(/\/$/, '')}
                          </span>
                        </div>
                      </a>
                    )}
                  </div>
                </div>
              )}

              {/* Contact & Actions Grid */}
              <div className="space-y-4 pt-2">
                <h3 className="font-heading font-bold text-xs uppercase tracking-wider text-shutter">{t('contact')}</h3>

                <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
                  {listing.phone && (
                    <a
                      id="listing-contact-phone"
                      href={`tel:${listing.phone}`}
                      className="flex items-center justify-center gap-2 bg-pine hover:bg-pine/90 text-stone font-bold text-xs py-3.5 px-4 rounded-xl transition"
                    >
                      <Phone className="w-4 h-4" />
                      {t('call')}
                    </a>
                  )}

                  {listing.whatsapp && (
                    <a
                      id="listing-contact-whatsapp"
                      href={getWhatsAppLink(listing.whatsapp)}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="flex items-center justify-center gap-2 bg-turquoise hover:bg-turquoise/90 text-paper font-bold text-xs py-3.5 px-4 rounded-xl transition"
                    >
                      <MessageSquare className="w-4 h-4" />
                      {t('whatsapp')}
                    </a>
                  )}

                  {/* Menu Link */}
                  {listing.menuUrl && (
                    <a
                      id="listing-contact-menu"
                      href={listing.menuUrl}
                      target="_blank"
                      rel="noopener noreferrer"
                      className="flex items-center justify-center gap-2 bg-paper text-pine font-bold text-xs py-3.5 px-4 rounded-xl border border-pine/15 hover:bg-stone/50 transition sm:col-span-2"
                    >
                      <Globe className="w-4 h-4 text-turquoise" />
                      {t('viewMenu')}
                    </a>
                  )}

                  {/* Save Button (Favorites client action) */}
                  <SaveButton
                    listingId={listing.id}
                    saveLabel={t('save')}
                    savedLabel={t('saved')}
                  />
                </div>

                {/* External links */}
                <div className="flex flex-wrap gap-5 pt-2 text-xs font-semibold text-shutter">
                  {listing.website && (
                    <a href={listing.website} target="_blank" rel="noopener noreferrer" className="flex items-center gap-1.5 hover:text-turquoise transition">
                      <Globe className="w-4 h-4 text-turquoise" />
                      {t('website')}
                    </a>
                  )}

                  {listing.instagram && (
                    <a href={`https://instagram.com/${listing.instagram}`} target="_blank" rel="noopener noreferrer" className="flex items-center gap-1.5 hover:text-turquoise transition">
                      <Globe className="w-4 h-4 text-turquoise" />
                      {t('instagram')}
                    </a>
                  )}

                  {/* WhatsApp Share button */}
                  <a href={getShareLink()} target="_blank" rel="noopener noreferrer" className="flex items-center gap-1.5 hover:text-turquoise transition">
                    <Share2 className="w-4 h-4 text-turquoise" />
                    {t('shareWhatsapp')}
                  </a>
                </div>
              </div>
            </div>
          </div>

          {/* Details footer (Hours & Location map) */}
          <div className="grid grid-cols-1 lg:grid-cols-3 gap-8 pt-8 border-t border-dashed border-pine/12">
            
            {/* Address */}
            <div className="space-y-2">
              <div className="flex items-center gap-2 font-heading font-bold text-xs text-pine uppercase tracking-wider">
                <MapPin className="w-4 h-4 text-turquoise" />
                <span>{t('address')}</span>
              </div>
              <p className="text-xs text-ink/75 font-medium leading-relaxed">
                {listing.address}
              </p>
            </div>

            {/* Hours */}
            <div className="space-y-2">
              <div className="flex items-center gap-2 font-heading font-bold text-xs text-pine uppercase tracking-wider">
                <Clock className="w-4 h-4 text-turquoise" />
                <span>{t('hours')}</span>
              </div>
              <div className="text-xs text-ink/75 font-medium">
                {listing.openingHours ? (
                  <p>{(listing.openingHours as any).all || t('noHours')}</p>
                ) : (
                  <p>{t('noHours')}</p>
                )}
              </div>
            </div>

            {/* Map Frame */}
            {((listing.latitude && listing.longitude) || hasGooglePlaceId) && (
              <div className="space-y-2">
                <div className="flex items-center gap-2 font-heading font-bold text-xs text-pine uppercase tracking-wider">
                  <Globe className="w-4 h-4 text-turquoise" />
                  <span>{t('location')}</span>
                </div>
                <div className="rounded-xl overflow-hidden border border-pine/8 aspect-[16/10] sm:aspect-auto sm:h-36 relative group">
                  <iframe
                    width="100%"
                    height="100%"
                    frameBorder="0"
                    scrolling="no"
                    marginHeight={0}
                    marginWidth={0}
                    src={
                      hasGooglePlaceId
                        ? `https://maps.google.com/maps?q=place_id:${placeId}&z=16&output=embed`
                        : `https://maps.google.com/maps?q=${listing.latitude},${listing.longitude}+(${encodeURIComponent(name)})&t=&z=16&ie=UTF8&output=embed`
                    }
                    className="w-full h-full shadow-sm"
                    loading="lazy"
                    referrerPolicy="no-referrer-when-downgrade"
                  />
                </div>
              </div>
            )}
          </div>
        </div>

        {/* Instagram Feed Cache (Phase 2) */}
        {instagramFeed && instagramPosts.length > 0 && (
          <div className="bg-paper rounded-3xl border border-pine/8 p-6 sm:p-10 shadow-sm space-y-6">
            <div className="flex items-center gap-3 border-b border-dashed border-pine/8 pb-4">
              <div className="w-10 h-10 rounded-full border border-pine/10 flex items-center justify-center relative bg-stone shrink-0">
                <span className="font-heading font-bold text-pine text-xs tracking-tighter">IG</span>
              </div>
              <div>
                <h3 className="font-heading font-bold text-sm text-pine lowercase">@{instagramFeed.handle}</h3>
                <p className="text-[10px] font-mono text-shutter uppercase tracking-wider mt-0.5">{t('instagramFeed')}</p>
              </div>
            </div>

            <div className="grid grid-cols-1 sm:grid-cols-3 gap-4">
              {instagramPosts.slice(0, 3).map((post: any, idx: number) => (
                <a
                  key={idx}
                  href={post.permalink || '#'}
                  target="_blank"
                  rel="noopener noreferrer"
                  className="group relative aspect-square rounded-2xl overflow-hidden bg-stone border border-pine/5 shadow-sm block"
                >
                  <img
                    src={post.imageUrl}
                    alt={post.caption || 'Instagram post'}
                    className="w-full h-full object-cover group-hover:scale-103 transition duration-500"
                  />
                  <div className="absolute inset-0 bg-pine/70 opacity-0 group-hover:opacity-100 transition-opacity duration-300 p-4 flex flex-col justify-end">
                    <p className="text-[11px] text-stone font-medium line-clamp-3 leading-relaxed">
                      {post.caption}
                    </p>
                  </div>
                </a>
              ))}
            </div>
          </div>
        )}

        {/* Newly Added Widget (Phase 2) */}
        {latestListings.length > 0 && (
          <div className="bg-paper rounded-3xl border border-pine/8 p-6 sm:p-10 shadow-sm space-y-6">
            <div className="border-b border-dashed border-pine/8 pb-4">
              <h3 className="text-lg font-heading font-extrabold text-pine lowercase">
                {t('newlyAdded')}
              </h3>
              <p className="text-ink/65 text-xs font-medium mt-0.5">
                {t('newlyAddedSubtitle')}
              </p>
            </div>

            <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
              {latestListings.map((newest) => {
                const catSlug = newest.category?.slug || 'businesses'
                const newestName = locale === 'en' ? newest.nameEn : locale === 'ru' ? newest.nameRu : newest.nameTr
                const newestImg = newest.images && newest.images.length > 0 ? newest.images[0].url : 'https://images.unsplash.com/photo-1555396273-367ea4eb4db5?w=800&auto=format&fit=crop&q=80'
                return (
                  <Link
                    key={newest.id}
                    href={`/${catSlug}/${newest.slug}`}
                    className="flex gap-4 items-center group bg-stone/20 p-3.5 rounded-2xl border border-pine/5 hover:border-turquoise/25 transition duration-150"
                  >
                    <div className="w-16 h-16 rounded-xl overflow-hidden bg-stone shrink-0 border border-pine/8">
                      <img src={newestImg} alt={newestName} className="w-full h-full object-cover group-hover:scale-105 transition duration-300" />
                    </div>
                    <div>
                      <h4 className="font-heading font-bold text-xs text-pine lowercase line-clamp-1 group-hover:text-turquoise transition-colors">{newestName}</h4>
                      <p className="text-[10px] text-shutter font-mono mt-0.5">{newest.neighborhood?.nameTr}</p>
                    </div>
                  </Link>
                )
              })}
            </div>
          </div>
        )}

        {/* Related Section */}
        {relatedListings.length > 0 && (
          <div className="space-y-6 pt-6">
            <h3 className="text-xl font-heading font-extrabold text-pine lowercase border-b border-dashed border-pine/8 pb-3">
              {t('related')}
            </h3>
            <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-8">
              {relatedListings.map((listingItem) => (
                <ListingCard key={listingItem.id} listing={listingItem} />
              ))}
            </div>
          </div>
        )}

      </main>
    </div>
  )
}