'use client';

import dynamic from 'next/dynamic';
import Link from 'next/link';
import * as React from 'react';
import { AddToCompareButton } from '@/components/comparison/add-to-compare-button';
import { AiAdviceCards } from '@/components/listings/ai-advice-cards';
import { ImageGallery } from '@/components/listings/image-gallery';
import { InquiryModal } from '@/components/listings/inquiry-modal';
import { PriceHistoryChart } from '@/components/listings/price-history-chart';
import { SocialShare } from '@/components/listings/social-share';
import { ReportListingModal } from '@/components/listings/report-listing-modal';
import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
import { AiEstimateButton } from '@/components/valuation/ai-estimate-button';
import { analyticsApi } from '@/lib/analytics-api';
import type { NearbyPOI } from '@/lib/analytics-api';
import { formatPrice, formatPricePerM2 } from '@/lib/currency';
import { composeWhyThisLocation, derivePersonas } from '@/lib/listing-personas';
import {
  type AgentQualityScore,
  type ListingDetail,
  type ListingSimilarItem,
  type NeighborhoodScoreResult,
  type PriceHistoryItem,
  listingsApi,
} from '@/lib/listings-api';
import {
  PROPERTY_TYPES,
  DIRECTIONS,
  TRANSACTION_TYPES,
  FURNISHING_OPTIONS,
  PROPERTY_CONDITION_OPTIONS,
} from '@/lib/validations/listings';
import type { POIItem } from '@/components/neighborhood';

const NeighborhoodRadarChart = dynamic(
  () => import('@/components/neighborhood').then((m) => m.NeighborhoodRadarChart),
  { ssr: false },
);

const NeighborhoodPOIMap = dynamic(
  () => import('@/components/neighborhood').then((m) => m.NeighborhoodPOIMap),
  {
    ssr: false,
    loading: () => (
      <div className="flex h-[400px] items-center justify-center rounded-lg bg-muted">
        <p className="text-sm text-muted-foreground">Đang tải bản đồ...</p>
      </div>
    ),
  },
);

// ─── Helpers ──────────────────────────────────────────────

function getLabel(list: readonly { value: string; label: string }[], value: string | null) {
  if (!value) return null;
  return list.find((item) => item.value === value)?.label ?? value;
}

function formatVND(value: string | number) {
  return new Intl.NumberFormat('vi-VN').format(Number(value));
}

function daysOnMarket(publishedAt: string | null): number | null {
  if (!publishedAt) return null;
  return Math.floor((Date.now() - new Date(publishedAt).getTime()) / 86_400_000);
}

// ─── Sub-components ────────────────────────────────────────

/**
 * KPI card for the trader-style strip.
 */
function KpiCard({
  label,
  value,
  sub,
  signal,
}: {
  label: string;
  value: React.ReactNode;
  sub?: React.ReactNode;
  signal?: 'up' | 'down' | 'neutral';
}) {
  const signalClass =
    signal === 'up'
      ? 'text-[hsl(var(--signal-up))]'
      : signal === 'down'
        ? 'text-[hsl(var(--signal-down))]'
        : 'text-foreground-muted';

  return (
    <div className="flex min-w-0 flex-col gap-0.5 rounded-md border bg-[hsl(var(--background-elevated))] px-3 py-2">
      <span className="truncate text-[10px] font-semibold uppercase tracking-widest text-[hsl(var(--foreground-muted))]">
        {label}
      </span>
      <span className={`font-mono text-base font-semibold tabular-nums ${signalClass}`}>
        {value}
      </span>
      {sub && (
        <span className="font-mono text-[11px] text-[hsl(var(--foreground-muted))]">{sub}</span>
      )}
    </div>
  );
}

/**
 * Tier badge for agent quality score.
 */
const TIER_COLORS: Record<AgentQualityScore['tier'], string> = {
  BRONZE: 'bg-amber-700/20 text-amber-500 border-amber-700/40',
  SILVER: 'bg-slate-400/20 text-slate-300 border-slate-400/40',
  GOLD: 'bg-yellow-400/20 text-yellow-300 border-yellow-500/40',
  PLATINUM: 'bg-cyan-400/20 text-cyan-300 border-cyan-400/40',
};

/**
 * Comps table — similar listings in same district, sorted by pricePerM².
 */
function CompsTable({ items }: { items: ListingSimilarItem[] }) {
  if (items.length === 0) {
    return (
      <div className="flex h-24 items-center justify-center rounded-lg border border-dashed">
        <p className="text-sm text-[hsl(var(--foreground-muted))]">
          Không có bất động sản tương tự trong quận này
        </p>
      </div>
    );
  }

  return (
    <div className="overflow-x-auto rounded-md border">
      <table className="w-full text-sm">
        <thead>
          <tr className="border-b bg-[hsl(var(--background-surface))]">
            <th className="px-3 py-2 text-left text-[10px] font-semibold uppercase tracking-wider text-[hsl(var(--foreground-muted))]">
              Tiêu đề
            </th>
            <th className="px-3 py-2 text-right text-[10px] font-semibold uppercase tracking-wider text-[hsl(var(--foreground-muted))]">
              Diện tích
            </th>
            <th className="px-3 py-2 text-right text-[10px] font-semibold uppercase tracking-wider text-[hsl(var(--foreground-muted))]">
              Giá
            </th>
            <th className="px-3 py-2 text-left text-[10px] font-semibold uppercase tracking-wider text-[hsl(var(--foreground-muted))]">
              Quận
            </th>
          </tr>
        </thead>
        <tbody>
          {items.map((comp, i) => (
            <tr
              key={comp.id}
              className={`border-b last:border-b-0 transition-colors hover:bg-[hsl(var(--background-surface))] ${
                i % 2 === 0 ? '' : 'bg-[hsl(var(--background-surface)/0.4)]'
              }`}
            >
              <td className="px-3 py-2">
                <Link
                  href={`/listings/${comp.id}`}
                  className="line-clamp-1 font-medium text-[hsl(var(--accent-blue))] hover:underline"
                >
                  {comp.title}
                </Link>
                {comp.publishedAt && (
                  <p className="mt-0.5 text-[11px] text-[hsl(var(--foreground-muted))]">
                    {new Date(comp.publishedAt).toLocaleDateString('vi-VN')}
                  </p>
                )}
              </td>
              <td className="px-3 py-2 text-right font-mono tabular-nums">
                {comp.areaM2} m²
              </td>
              <td className="px-3 py-2 text-right font-mono tabular-nums text-[hsl(var(--foreground))]">
                {formatVND(comp.priceVND)}
              </td>
              <td className="px-3 py-2 text-[hsl(var(--foreground-muted))]">{comp.district}</td>
            </tr>
          ))}
        </tbody>
      </table>
    </div>
  );
}

/**
 * Compact agent card with quality score.
 */
function AgentCard({
  agent,
  agentQualityScore,
  onInquiry,
}: {
  agent: ListingDetail['agent'];
  agentQualityScore: AgentQualityScore | null;
  onInquiry: () => void;
}) {
  if (!agent) return null;
  return (
    <div className="flex items-center gap-3 rounded-md border bg-[hsl(var(--background-elevated))] p-3">
      <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-full bg-primary/10 text-primary">
        <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path
            strokeLinecap="round"
            strokeLinejoin="round"
            strokeWidth={2}
            d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z"
          />
        </svg>
      </div>
      <div className="min-w-0 flex-1">
        {agent.agency && (
          <p className="truncate text-sm font-semibold">{agent.agency}</p>
        )}
        {agentQualityScore && (
          <div className="mt-0.5 flex items-center gap-1.5">
            <span
              className={`rounded border px-1.5 py-0.5 text-[10px] font-semibold uppercase ${TIER_COLORS[agentQualityScore.tier]}`}
            >
              {agentQualityScore.tier}
            </span>
            <span className="font-mono text-[11px] text-[hsl(var(--foreground-muted))]">
              {agentQualityScore.score.toFixed(1)} điểm
            </span>
          </div>
        )}
      </div>
      <Button size="sm" onClick={onInquiry} className="shrink-0">
        Liên hệ
      </Button>
    </div>
  );
}

// ─── Persona fit ───────────────────────────────────────────

function mapScoreToCategories(result: NeighborhoodScoreResult) {
  return [
    { category: 'education', label: 'Giáo dục', score: result.educationScore },
    { category: 'healthcare', label: 'Y tế', score: result.healthcareScore },
    { category: 'transport', label: 'Giao thông', score: result.transportScore },
    { category: 'shopping', label: 'Mua sắm', score: result.shoppingScore },
    { category: 'environment', label: 'Môi trường', score: result.greeneryScore },
    { category: 'safety', label: 'An ninh', score: result.safetyScore },
  ];
}

function PersonaFitCard({
  listing,
  score,
  pois,
}: {
  listing: ListingDetail;
  score: NeighborhoodScoreResult | null;
  pois: POIItem[];
}) {
  const adminPicks = listing.property.suitableFor ?? [];
  const adminNarrative = listing.property.whyThisLocation?.trim() || null;

  const derived = React.useMemo(
    () => derivePersonas(listing, score, pois),
    [listing, score, pois],
  );
  const derivedNarrative = React.useMemo(
    () => composeWhyThisLocation(listing, score, pois),
    [listing, score, pois],
  );

  const narrative = adminNarrative ?? derivedNarrative;
  const derivedFiltered = derived.filter((d) => !adminPicks.includes(d.label));

  if (adminPicks.length === 0 && derivedFiltered.length === 0 && !narrative) return null;

  return (
    <Card className="my-6 border-primary/30 bg-primary/5">
      <CardHeader className="pb-3">
        <CardTitle className="text-lg">Phù hợp với ai?</CardTitle>
      </CardHeader>
      <CardContent className="space-y-4">
        {(adminPicks.length > 0 || derivedFiltered.length > 0) && (
          <div className="flex flex-wrap gap-2">
            {adminPicks.map((label) => (
              <div
                key={`admin-${label}`}
                className="group relative inline-flex items-center gap-1.5 rounded-full border border-primary/50 bg-primary/10 px-3 py-1.5 text-sm shadow-sm"
              >
                <span className="font-medium">{label}</span>
                <span className="rounded bg-primary/20 px-1.5 py-0.5 text-[10px] uppercase tracking-wide text-primary">
                  Người đăng chọn
                </span>
              </div>
            ))}
            {derivedFiltered.map((p) => (
              <div
                key={p.key}
                className="group relative inline-flex items-center gap-1.5 rounded-full border bg-card px-3 py-1.5 text-sm shadow-sm"
                title={p.reason}
              >
                <span className="inline-flex items-center text-primary">
                  <p.icon className="h-4 w-4 shrink-0" aria-hidden="true" />
                </span>
                <span className="font-medium">{p.label}</span>
              </div>
            ))}
          </div>
        )}
        {derivedFiltered.length > 0 && (
          <ul className="space-y-1.5 text-sm text-muted-foreground">
            {derivedFiltered.map((p) => (
              <li key={`reason-${p.key}`} className="flex gap-2">
                <span className="shrink-0 text-primary" aria-hidden="true">→</span>
                <span>
                  <span className="font-medium text-foreground">{p.label}:</span> {p.reason}
                </span>
              </li>
            ))}
          </ul>
        )}
        {narrative && (
          <div className="rounded-md border bg-card p-3">
            <p className="mb-1 text-xs font-semibold uppercase tracking-wide text-muted-foreground">
              Vì sao nên ở đây
            </p>
            <p className="text-sm leading-relaxed">{narrative}</p>
          </div>
        )}
      </CardContent>
    </Card>
  );
}

// ─── Utility sub-components ────────────────────────────────

function QuickStat({ icon, label, value }: { icon: string; label: string; value: string }) {
  const icons: Record<string, React.ReactNode> = {
    area: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M4 8V4m0 0h4M4 4l5 5m11-1V4m0 0h-4m4 0l-5 5M4 16v4m0 0h4m-4 0l5-5m11 5l-5-5m5 5v-4m0 4h-4" />
      </svg>
    ),
    bed: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M3 7v11m0-7h18M3 18h18M6 14h.01M6 10a2 2 0 012-2h8a2 2 0 012 2v0H6z" />
      </svg>
    ),
    bath: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M4 12h16M4 12a2 2 0 00-2 2v2a4 4 0 004 4h12a4 4 0 004-4v-2a2 2 0 00-2-2M4 12V7a3 3 0 013-3h1" />
      </svg>
    ),
    floors: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
      </svg>
    ),
    compass: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M9 9l3 3m0 0l3-3m-3 3V6m0 6l-3 3m3-3l3 3m-3-3v6" />
      </svg>
    ),
    transit: (
      <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M8 7h12m0 0l-4-4m4 4l-4 4m0 6H4m0 0l4 4m-4-4l4-4" />
      </svg>
    ),
  };

  return (
    <div className="flex items-center gap-2">
      <div className="text-muted-foreground">{icons[icon]}</div>
      <div>
        <p className="text-xs text-muted-foreground">{label}</p>
        <p className="text-sm font-semibold">{value}</p>
      </div>
    </div>
  );
}

function InfoItem({ label, value }: { label: string; value: string }) {
  return (
    <div>
      <p className="text-xs text-muted-foreground">{label}</p>
      <p className="font-medium">{value}</p>
    </div>
  );
}

// ─── Main component ────────────────────────────────────────

interface ListingDetailClientProps {
  listing: ListingDetail;
}

export function ListingDetailClient({ listing }: ListingDetailClientProps) {
  const { property, seller, agent } = listing;
  const transactionLabel = getLabel(TRANSACTION_TYPES, listing.transactionType);
  const propertyTypeLabel = getLabel(PROPERTY_TYPES, property.propertyType);

  const [inquiryOpen, setInquiryOpen] = React.useState(false);
  const [reportOpen, setReportOpen] = React.useState(false);
  const [neighborhoodScore, setNeighborhoodScore] = React.useState<NeighborhoodScoreResult | null>(null);
  const [priceHistory, setPriceHistory] = React.useState<PriceHistoryItem[]>([]);
  const [comps, setComps] = React.useState<ListingSimilarItem[]>([]);
  const [compsLoaded, setCompsLoaded] = React.useState(false);
  const [nearbyPois, setNearbyPois] = React.useState<POIItem[]>([]);

  React.useEffect(() => {
    if (!property.district || !property.city) return;
    listingsApi
      .getNeighborhoodScore(property.district, property.city)
      .then(setNeighborhoodScore)
      .catch(() => {/* silently ignore */});
  }, [property.district, property.city]);

  React.useEffect(() => {
    const { latitude, longitude } = property;
    if (latitude == null || longitude == null) return;
    analyticsApi
      .getNearbyPOIs(latitude, longitude)
      .then((res) => {
        const mapped: POIItem[] = res.pois.map((p: NearbyPOI) => ({
          id: p.id,
          name: p.name,
          category: p.category,
          lat: p.lat,
          lng: p.lng,
          distance: p.distance,
        }));
        setNearbyPois(mapped);
      })
      .catch(() => {/* silently ignore */});
  }, [property.latitude, property.longitude]);

  React.useEffect(() => {
    listingsApi
      .getPriceHistory(listing.id)
      .then(setPriceHistory)
      .catch(() => {/* silently ignore */});
  }, [listing.id]);

  React.useEffect(() => {
    listingsApi
      .getSimilar(listing.id, 5)
      .then((data) => {
        setComps(data);
        setCompsLoaded(true);
      })
      .catch(() => {
        setCompsLoaded(true); // show empty state on error
      });
  }, [listing.id]);

  const dom = daysOnMarket(listing.publishedAt);

  return (
    /* pb-28 reserves space for the sticky action bar on mobile */
    <div className="mx-auto max-w-6xl px-4 pb-28 pt-4 lg:pb-6">
      {/* ── Breadcrumb + header strip ─────────────────────────── */}
      <nav className="mb-3 flex items-center gap-1.5 text-xs text-[hsl(var(--foreground-muted))]">
        <Link href="/" className="hover:text-foreground">Trang chủ</Link>
        <span>/</span>
        <Link href="/search" className="hover:text-foreground">Tìm kiếm</Link>
        <span>/</span>
        <span className="truncate text-foreground">{property.title}</span>
      </nav>

      {/* ── Title + status pills ──────────────────────────────── */}
      <div className="mb-4">
        <div className="mb-1.5 flex flex-wrap items-center gap-2">
          {transactionLabel && (
            <Badge variant={listing.transactionType === 'SALE' ? 'default' : 'secondary'}>
              {transactionLabel}
            </Badge>
          )}
          {propertyTypeLabel && <Badge variant="outline">{propertyTypeLabel}</Badge>}
          {listing.status !== 'ACTIVE' && (
            <Badge variant="destructive">{listing.status}</Badge>
          )}
        </div>
        <h1 className="text-xl font-bold leading-snug md:text-2xl">{property.title}</h1>
        <p className="mt-1 flex items-center gap-1 text-sm text-[hsl(var(--foreground-muted))]">
          <svg className="h-3.5 w-3.5 shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17.657 16.657L13.414 20.9a1.998 1.998 0 01-2.827 0l-4.244-4.243a8 8 0 1111.314 0z" />
            <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 11a3 3 0 11-6 0 3 3 0 016 0z" />
          </svg>
          {property.address}, {property.ward}, {property.district}, {property.city}
        </p>
      </div>

      {/* ── KPI strip (trader-style) ──────────────────────────── */}
      <div className="mb-5 grid grid-cols-2 gap-2 sm:grid-cols-3 lg:grid-cols-6">
        <KpiCard
          label="Giá"
          value={`${formatVND(listing.priceVND)} đ`}
        />
        {listing.pricePerM2 != null && (
          <KpiCard
            label="Giá/m²"
            value={formatPricePerM2(listing.pricePerM2)}
          />
        )}
        {listing.valuationEstimate != null && (
          <KpiCard
            label="Định giá AVM"
            value={`${formatVND(listing.valuationEstimate.value)} đ`}
            sub={`Tin cậy ${Math.round(listing.valuationEstimate.confidence * 100)}%`}
          />
        )}
        {listing.inquiryCount != null && (
          <KpiCard
            label="Liên hệ"
            value={String(listing.inquiryCount)}
          />
        )}
        {listing.agentQualityScore != null && (
          <KpiCard
            label="Điểm môi giới"
            value={listing.agentQualityScore.score.toFixed(1)}
            sub={listing.agentQualityScore.tier}
          />
        )}
        {dom != null && (
          <KpiCard
            label="Ngày đăng"
            value={`${dom} ngày`}
            signal={dom > 90 ? 'down' : dom > 30 ? 'neutral' : 'up'}
          />
        )}
      </div>

      {/* ── Image gallery ─────────────────────────────────────── */}
      <ImageGallery media={property.media} />

      {/* ── Quick specs bar ───────────────────────────────────── */}
      <div className="my-5 flex flex-wrap gap-4 rounded-lg border bg-[hsl(var(--background-elevated))] p-4">
        <QuickStat icon="area" label="Diện tích" value={`${property.areaM2} m²`} />
        {property.bedrooms != null && (
          <QuickStat icon="bed" label="Phòng ngủ" value={`${property.bedrooms}`} />
        )}
        {property.bathrooms != null && (
          <QuickStat icon="bath" label="Phòng tắm" value={`${property.bathrooms}`} />
        )}
        {property.floor != null && property.totalFloors != null && (
          <QuickStat icon="floors" label="Tầng" value={`${property.floor} / ${property.totalFloors}`} />
        )}
        {property.floor != null && property.totalFloors == null && (
          <QuickStat icon="floors" label="Tầng" value={`${property.floor}`} />
        )}
        {property.floor == null && property.floors != null && (
          <QuickStat icon="floors" label="Số tầng" value={`${property.floors}`} />
        )}
        {property.direction && (
          <QuickStat icon="compass" label="Hướng" value={getLabel(DIRECTIONS, property.direction) || ''} />
        )}
        {property.metroDistanceM != null && (
          <QuickStat
            icon="transit"
            label="Cách metro"
            value={
              property.metroDistanceM < 1000
                ? `${property.metroDistanceM} m`
                : `${(property.metroDistanceM / 1000).toFixed(1)} km`
            }
          />
        )}
      </div>

      {/* ── Persona fit ───────────────────────────────────────── */}
      <PersonaFitCard listing={listing} score={neighborhoodScore} pois={nearbyPois} />

      {/* ── Main two-column layout ────────────────────────────── */}
      <div className="grid gap-6 lg:grid-cols-3">
        {/* Left — main content */}
        <div className="space-y-6 lg:col-span-2">

          {/* Price chart */}
          <Card>
            <CardHeader className="pb-2">
              <CardTitle className="text-sm font-semibold uppercase tracking-wider">
                Lịch sử giá
              </CardTitle>
            </CardHeader>
            <CardContent>
              {priceHistory.length > 0 ? (
                <PriceHistoryChart data={priceHistory} />
              ) : (
                <div className="flex h-24 items-center justify-center rounded-lg border border-dashed">
                  <p className="text-sm text-[hsl(var(--foreground-muted))]">
                    Chưa có lịch sử biến động giá cho tin này
                  </p>
                </div>
              )}
            </CardContent>
          </Card>

          {/* Comps table */}
          <Card>
            <CardHeader className="pb-2">
              <CardTitle className="text-sm font-semibold uppercase tracking-wider">
                Bất động sản tương tự
              </CardTitle>
            </CardHeader>
            <CardContent>
              {compsLoaded ? (
                <CompsTable items={comps} />
              ) : (
                <div className="flex h-16 items-center justify-center">
                  <p className="text-xs text-[hsl(var(--foreground-muted))]">Đang tải...</p>
                </div>
              )}
            </CardContent>
          </Card>

          {/* Description */}
          <Card>
            <CardHeader>
              <CardTitle>Mô tả</CardTitle>
            </CardHeader>
            <CardContent>
              <p className="whitespace-pre-wrap text-sm leading-relaxed">{property.description}</p>
            </CardContent>
          </Card>

          {/* Details */}
          <Card>
            <CardHeader>
              <CardTitle>Thông tin chi tiết</CardTitle>
            </CardHeader>
            <CardContent>
              <div className="grid grid-cols-2 gap-4 sm:grid-cols-3">
                <InfoItem label="Loại BĐS" value={propertyTypeLabel || '---'} />
                <InfoItem label="Diện tích tim tường" value={`${property.areaM2} m²`} />
                <InfoItem
                  label="Diện tích sử dụng"
                  value={property.usableAreaM2 != null ? `${property.usableAreaM2} m²` : '---'}
                />
                <InfoItem label="Phòng ngủ" value={property.bedrooms != null ? `${property.bedrooms}` : '---'} />
                <InfoItem label="Phòng tắm" value={property.bathrooms != null ? `${property.bathrooms}` : '---'} />
                <InfoItem
                  label="Tầng / Tổng tầng"
                  value={
                    property.floor != null && property.totalFloors != null
                      ? `${property.floor} / ${property.totalFloors}`
                      : property.floor != null
                        ? `${property.floor}`
                        : property.floors != null
                          ? `${property.floors}`
                          : '---'
                  }
                />
                <InfoItem label="Hướng" value={getLabel(DIRECTIONS, property.direction) || '---'} />
                <InfoItem label="Năm xây" value={property.yearBuilt ? `${property.yearBuilt}` : '---'} />
                <InfoItem label="Pháp lý" value={
                  (() => {
                    const labels: Record<string, string> = {
                      SO_DO: 'Sổ đỏ', SO_HONG: 'Sổ hồng',
                      LAND_USE_RIGHT: 'Quyền sử dụng đất', JOINT_USE_RIGHT: 'Sở hữu chung',
                      AWAITING: 'Đang chờ sổ', NO_CERTIFICATE: 'Chưa có giấy tờ',
                    };
                    const label = property.legalStatus ? (labels[property.legalStatus] ?? property.legalStatus) : '---';
                    const badge = property.certificateVerified ? ' ✅ Đã xác minh' : '';
                    return label + badge;
                  })()
                } />
                <InfoItem label="Dự án" value={property.projectName || '---'} />
                <InfoItem
                  label="Cách metro gần nhất"
                  value={
                    property.metroDistanceM != null
                      ? property.metroDistanceM < 1000
                        ? `${property.metroDistanceM} m`
                        : `${(property.metroDistanceM / 1000).toFixed(1)} km`
                      : '---'
                  }
                />
                <InfoItem label="Nội thất" value={getLabel(FURNISHING_OPTIONS, property.furnishing) || '---'} />
                <InfoItem label="Tình trạng" value={getLabel(PROPERTY_CONDITION_OPTIONS, property.propertyCondition) || '---'} />
                <InfoItem label="Hướng ban công" value={getLabel(DIRECTIONS, property.balconyDirection) || '---'} />
                <InfoItem
                  label="Phí quản lý/tháng"
                  value={property.maintenanceFeeVND ? `${formatPrice(property.maintenanceFeeVND)} VND` : '---'}
                />
                <InfoItem
                  label="Chỗ để xe"
                  value={property.parkingSlots != null ? `${property.parkingSlots}` : '---'}
                />
                <InfoItem
                  label="View"
                  value={property.viewType && property.viewType.length > 0 ? property.viewType.join(' • ') : '---'}
                />
                {property.petFriendly !== null && (
                  <InfoItem
                    label="Thú cưng"
                    value={property.petFriendly ? 'Cho phép' : 'Không cho phép'}
                  />
                )}
              </div>
            </CardContent>
          </Card>

          {/* Amenities */}
          {property.amenities && property.amenities.length > 0 && (
            <Card>
              <CardHeader>
                <CardTitle>Tiện ích</CardTitle>
              </CardHeader>
              <CardContent>
                <div className="flex flex-wrap gap-2">
                  {property.amenities.map((a) => (
                    <Badge key={a} variant="secondary">
                      {a}
                    </Badge>
                  ))}
                </div>
              </CardContent>
            </Card>
          )}

          {/* Map */}
          <Card>
            <CardHeader>
              <CardTitle>Vị trí trên bản đồ</CardTitle>
            </CardHeader>
            <CardContent>
              {property.latitude != null && property.longitude != null ? (
                <>
                  <NeighborhoodPOIMap
                    center={{ lat: property.latitude, lng: property.longitude }}
                    pois={nearbyPois}
                    height="400px"
                  />
                  <p className="mt-3 text-sm text-muted-foreground">
                    Tìm thấy {nearbyPois.length} điểm quan tâm trong bán kính 2 km
                  </p>
                </>
              ) : (
                <div className="flex h-[300px] items-center justify-center rounded-lg bg-muted">
                  <p className="text-sm text-muted-foreground">
                    Chưa có tọa độ cho tin đăng này
                  </p>
                </div>
              )}
            </CardContent>
          </Card>

          {/* Neighborhood score radar */}
          <Card>
            <CardHeader>
              <CardTitle>Đánh giá khu vực</CardTitle>
            </CardHeader>
            <CardContent>
              {neighborhoodScore ? (
                <>
                  <div className="mb-3 flex items-center gap-2">
                    <Badge
                      variant={
                        neighborhoodScore.totalScore > 7
                          ? 'success'
                          : neighborhoodScore.totalScore >= 5
                            ? 'warning'
                            : 'destructive'
                      }
                      className="px-3 py-1 text-lg font-bold"
                    >
                      {neighborhoodScore.totalScore.toFixed(1)}/10
                    </Badge>
                    <span className="text-sm text-muted-foreground">Điểm tổng khu vực</span>
                  </div>
                  <NeighborhoodRadarChart
                    categories={mapScoreToCategories(neighborhoodScore)}
                    height={300}
                  />
                </>
              ) : (
                <div className="flex h-[200px] items-center justify-center rounded-lg bg-muted/50">
                  <p className="text-sm text-muted-foreground">
                    Chưa có dữ liệu đánh giá khu vực này
                  </p>
                </div>
              )}
            </CardContent>
          </Card>
        </div>

        {/* Right — sidebar */}
        <div className="space-y-4">
          {/* Price card */}
          <Card className="border-primary/30">
            <CardContent className="pt-5">
              <p className="font-mono text-2xl font-bold text-primary tabular-nums">
                {formatVND(listing.priceVND)} đ
              </p>
              {listing.pricePerM2 != null && (
                <p className="mt-0.5 font-mono text-sm text-[hsl(var(--foreground-muted))] tabular-nums">
                  ~{formatPricePerM2(listing.pricePerM2)}
                </p>
              )}
              {listing.rentPriceMonthly && (
                <p className="mt-0.5 text-sm text-muted-foreground">
                  Thuê: {formatPrice(listing.rentPriceMonthly)}/tháng
                </p>
              )}
              {listing.valuationEstimate && (
                <p className="mt-1.5 rounded border border-dashed px-2 py-1 text-xs text-[hsl(var(--foreground-muted))]">
                  AVM: {formatVND(listing.valuationEstimate.value)} đ
                  &nbsp;·&nbsp;{Math.round(listing.valuationEstimate.confidence * 100)}% tin cậy
                </p>
              )}
              <div className="mt-3">
                <AddToCompareButton listingId={listing.id} />
              </div>
            </CardContent>
          </Card>

          {/* Agent card compact */}
          {agent && (
            <AgentCard
              agent={agent}
              agentQualityScore={listing.agentQualityScore}
              onInquiry={() => setInquiryOpen(true)}
            />
          )}

          {/* Seller contact */}
          <Card>
            <CardHeader>
              <CardTitle>Liên hệ người đăng</CardTitle>
            </CardHeader>
            <CardContent className="space-y-3">
              <div className="flex items-center gap-3">
                <div className="flex h-9 w-9 items-center justify-center rounded-full bg-primary/10 text-primary">
                  <svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z" />
                  </svg>
                </div>
                <div>
                  <p className="font-medium">{seller.fullName}</p>
                  <p className="text-sm text-muted-foreground">{seller.phone}</p>
                </div>
              </div>
              <a href={`tel:${seller.phone}`}>
                <Button className="w-full gap-2">
                  <svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z" />
                  </svg>
                  Gọi ngay
                </Button>
              </a>
              <Button variant="outline" className="w-full gap-2" onClick={() => setInquiryOpen(true)}>
                <svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 12h.01M12 12h.01M16 12h.01M21 12c0 4.418-4.03 8-9 8a9.863 9.863 0 01-4.255-.949L3 20l1.395-3.72C3.512 15.042 3 13.574 3 12c0-4.418 4.03-8 9-8s9 3.582 9 8z" />
                </svg>
                Nhắn tin
              </Button>

              <InquiryModal
                open={inquiryOpen}
                onOpenChange={setInquiryOpen}
                listingId={listing.id}
                listingTitle={property.title}
                sellerName={seller.fullName}
              />

              {agent?.agency && listing.commissionPct != null && (
                <div className="border-t pt-3">
                  <p className="text-xs text-muted-foreground">Môi giới: {agent.agency}</p>
                  <p className="text-xs text-muted-foreground">Hoa hồng: {listing.commissionPct}%</p>
                </div>
              )}
            </CardContent>
          </Card>

          {/* Sharing */}
          <Card>
            <CardContent className="pt-6">
              <SocialShare listingId={listing.id} listingTitle={property.title} />
            </CardContent>
          </Card>

          {/* Report */}
          <Button
            variant="ghost"
            size="sm"
            className="w-full gap-2 text-muted-foreground hover:text-destructive"
            onClick={() => setReportOpen(true)}
          >
            <svg className="h-4 w-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 21v-4m0 0V5a2 2 0 012-2h6.5l1 1H21l-3 6 3 6h-8.5l-1-1H5a2 2 0 00-2 2zm9-13.5V9" />
            </svg>
            Báo cáo tin đăng
          </Button>
          <ReportListingModal
            listingId={listing.id}
            open={reportOpen}
            onOpenChange={setReportOpen}
          />

          {/* Stats */}
          <Card>
            <CardContent className="pt-5">
              <div className="grid grid-cols-3 gap-3 text-center">
                <div>
                  <p className="font-mono text-lg font-bold tabular-nums">{listing.viewCount}</p>
                  <p className="text-[11px] text-muted-foreground">Lượt xem</p>
                </div>
                <div>
                  <p className="font-mono text-lg font-bold tabular-nums">{listing.saveCount}</p>
                  <p className="text-[11px] text-muted-foreground">Lượt lưu</p>
                </div>
                <div>
                  <p className="font-mono text-lg font-bold tabular-nums">
                    {listing.similarCount}
                  </p>
                  <p className="text-[11px] text-muted-foreground">Tin tương tự</p>
                </div>
              </div>
              {listing.publishedAt && (
                <p className="mt-3 border-t pt-3 text-center text-xs text-muted-foreground">
                  Đăng ngày {new Date(listing.publishedAt).toLocaleDateString('vi-VN')}
                </p>
              )}
            </CardContent>
          </Card>

          {/* AI tools */}
          <AiEstimateButton listingId={listing.id} />
          <AiAdviceCards
            listingId={listing.id}
            existingPersonas={property.suitableFor ?? []}
          />
        </div>
      </div>

      {/* ── Sticky action bar (mobile + desktop) ─────────────── */}
      <div className="fixed inset-x-0 bottom-0 z-30 border-t bg-[hsl(var(--background-elevated))]/95 px-4 py-3 backdrop-blur-sm lg:hidden">
        <div className="mx-auto flex max-w-6xl items-center gap-3">
          <div className="min-w-0 flex-1">
            <p className="truncate text-xs text-[hsl(var(--foreground-muted))]">{property.title}</p>
            <p className="font-mono text-sm font-bold text-primary tabular-nums">
              {formatVND(listing.priceVND)} đ
            </p>
          </div>
          <a href={`tel:${seller.phone}`}>
            <Button size="sm" variant="outline" className="gap-1.5">
              <svg className="h-3.5 w-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M3 5a2 2 0 012-2h3.28a1 1 0 01.948.684l1.498 4.493a1 1 0 01-.502 1.21l-2.257 1.13a11.042 11.042 0 005.516 5.516l1.13-2.257a1 1 0 011.21-.502l4.493 1.498a1 1 0 01.684.949V19a2 2 0 01-2 2h-1C9.716 21 3 14.284 3 6V5z" />
              </svg>
              Gọi
            </Button>
          </a>
          <Button size="sm" onClick={() => setInquiryOpen(true)} className="gap-1.5">
            <svg className="h-3.5 w-3.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 12h.01M12 12h.01M16 12h.01M21 12c0 4.418-4.03 8-9 8a9.863 9.863 0 01-4.255-.949L3 20l1.395-3.72C3.512 15.042 3 13.574 3 12c0-4.418 4.03-8 9-8s9 3.582 9 8z" />
            </svg>
            Nhắn tin
          </Button>
          <AddToCompareButton listingId={listing.id} />
        </div>
      </div>
    </div>
  );
}
