import React, { useMemo, useState } from 'react';
import { useQuery } from '@tanstack/react-query';
import { Link } from 'react-router-dom';
import {
  UserGroupIcon, HeartIcon, BuildingOffice2Icon, CalendarDaysIcon,
  CreditCardIcon, ArrowPathIcon, BellAlertIcon, ChatBubbleLeftEllipsisIcon,
} from '@heroicons/react/24/outline';
import { api } from '../lib/api';
import type { ApiResponse } from '../lib/api';
import { formatNumber, formatRial, formatDateTime } from '../lib/utils';

// ── Types ─────────────────────────────────────────────────────────────────

interface DashboardStats {
  total_users: number;
  active_doctors: number;
  total_doctors: number;
  total_clinics: number;
  today_appointments: number;
  total_appointments: number;
  today_payments_count: number;
  today_payments_amount: number;
  total_payments_amount: number;
  pending_comments: number;
  pending_settlements: number;
  this_month_revenue: number;
  this_month_appointments: number;
}

interface ChartData {
  appointments_30d: { date: string; count: number }[];
  revenue_30d:      { date: string; amount: number }[];
  appointment_status: { status: string; count: number }[];
  top_specialties:   { name: string; count: number }[];
}

interface RecentAppointment {
  uuid: string; slot_start: string; status: string;
  doctor_name: string; user_mobile: string; user_name: string | null; created_at: string;
}
interface RecentPayment {
  uuid: string; amount: number; status: string; gateway: string;
  user_mobile: string; user_name: string | null; created_at: string;
}
interface RecentUser {
  uuid: string; mobile: string; name: string | null; email: string | null; created_at: string;
}
interface RecentData {
  appointments: RecentAppointment[];
  payments:     RecentPayment[];
  users:        RecentUser[];
}

// ── Status maps ───────────────────────────────────────────────────────────

const APPT_LABEL: Record<string, string> = {
  waiting_for_payment: 'انتظار پرداخت', reserved: 'رزرو شده', checked_in: 'ورود به مطب',
  waiting: 'صف انتظار', in_progress: 'در حال ویزیت', visited: 'ویزیت شده',
  completed: 'تکمیل شده', cancelled_by_doctor: 'لغو پزشک', cancelled_by_user: 'لغو بیمار',
  auto_cancel_unpaid: 'لغو خودکار', no_show: 'غیبت',
};
const APPT_COLOR: Record<string, string> = {
  waiting_for_payment: '#f59e0b', reserved: '#3b82f6', checked_in: '#6366f1',
  waiting: '#f97316', in_progress: '#8b5cf6', visited: '#10b981',
  completed: '#22c55e', cancelled_by_doctor: '#ef4444', cancelled_by_user: '#f43f5e',
  auto_cancel_unpaid: '#94a3b8', no_show: '#64748b',
};
const APPT_CLS: Record<string, string> = {
  waiting_for_payment: 'amber', reserved: 'blue', checked_in: 'violet',
  waiting: 'amber', in_progress: 'violet', visited: 'green', completed: 'green',
  cancelled_by_doctor: 'red', cancelled_by_user: 'red', auto_cancel_unpaid: 'gray', no_show: 'gray',
};
const PAY_LABEL: Record<string, string> = {
  pending: 'در انتظار', received: 'موفق', canceled: 'لغو شده', refund: 'استرداد',
};
const PAY_COLOR: Record<string, string> = {
  pending: '#f59e0b', received: '#22c55e', canceled: '#ef4444', refund: '#3b82f6',
};
const PAY_CLS: Record<string, string> = {
  pending: 'amber', received: 'green', canceled: 'red', refund: 'blue',
};

// ── SVG Chart Components ──────────────────────────────────────────────────

function SvgLineChart({ data, color, h = 220 }: { data: number[]; color: string; h?: number }) {
  if (data.length < 2) return null;
  const w = 760, pad = 8;
  const max = Math.max(...data) * 1.15 || 1;
  const stepX = (w - pad * 2) / (data.length - 1);
  const pts: [number, number][] = data.map((v, i) => [
    pad + i * stepX,
    h - pad - (v / max) * (h - pad * 2 - 18),
  ]);
  const d = pts.map((p, i) => {
    if (i === 0) return `M${p[0]},${p[1]}`;
    const prev = pts[i - 1];
    const cx = (prev[0] + p[0]) / 2;
    return `C${cx},${prev[1]} ${cx},${p[1]} ${p[0]},${p[1]}`;
  }).join(' ');
  const area = `${d} L${pts[pts.length - 1][0]},${h - pad} L${pts[0][0]},${h - pad} Z`;
  const gid = 'lg' + color.replace(/[^a-z0-9]/gi, '');
  return (
    <svg viewBox={`0 0 ${w} ${h}`} width="100%" height={h} preserveAspectRatio="none" style={{ overflow: 'visible' }}>
      <defs>
        <linearGradient id={gid} x1="0" y1="0" x2="0" y2="1">
          <stop offset="0%" stopColor={color} stopOpacity={0.22} />
          <stop offset="100%" stopColor={color} stopOpacity={0} />
        </linearGradient>
      </defs>
      {[0.25, 0.5, 0.75, 1].map((g, i) => (
        <line key={i} x1={pad} x2={w - pad} y1={(h - pad * 2) * g} y2={(h - pad * 2) * g}
          stroke="var(--border)" strokeDasharray="4 6" strokeWidth={1} />
      ))}
      <path d={area} fill={`url(#${gid})`} className="ln-area" />
      <path d={d} fill="none" stroke={color} strokeWidth={2.6} strokeLinecap="round" className="ln-path" />
      {pts.map((p, i) => i % 4 === 0 && (
        <circle key={i} cx={p[0]} cy={p[1]} r={3.2} fill="var(--surface)" stroke={color} strokeWidth={2.2} />
      ))}
      <style>{`.ln-path{stroke-dasharray:2400;stroke-dashoffset:2400;animation:draw 1.4s cubic-bezier(.22,.61,.36,1) forwards}.ln-area{opacity:0;animation:fadein .9s .5s forwards}@keyframes draw{to{stroke-dashoffset:0}}`}</style>
    </svg>
  );
}

function SvgDonut({ data, size = 190 }: { data: { value: number; color: string; label: string }[]; size?: number }) {
  const total = data.reduce((s, d) => s + d.value, 0);
  if (!total) return null;
  const r = size / 2 - 16;
  const c = 2 * Math.PI * r;
  let off = 0;
  return (
    <svg viewBox={`0 0 ${size} ${size}`} width={size} height={size}>
      <g transform={`rotate(-90 ${size / 2} ${size / 2})`}>
        {data.map((d, i) => {
          const frac = d.value / total;
          const seg = (
            <circle key={i} cx={size / 2} cy={size / 2} r={r} fill="none"
              stroke={d.color} strokeWidth={20} strokeLinecap="round"
              strokeDasharray={`${Math.max(frac * c - 4, 0)} ${c}`}
              strokeDashoffset={-off * c} />
          );
          off += frac;
          return seg;
        })}
      </g>
      <text x="50%" y="46%" textAnchor="middle" fontSize="13" fill="var(--text-3)" fontFamily="Vazirmatn">مجموع</text>
      <text x="50%" y="60%" textAnchor="middle" fontSize="22" fontWeight="800" fill="var(--text)" fontFamily="Vazirmatn">{formatNumber(total)}</text>
    </svg>
  );
}

function SvgHBars({ data }: { data: { label: string; value: number }[] }) {
  const max = Math.max(...data.map(d => d.value)) || 1;
  return (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
      {data.map((d, i) => (
        <div key={i} style={{ display: 'grid', gridTemplateColumns: '160px 1fr 52px', alignItems: 'center', gap: 12 }}>
          <div style={{ fontSize: 12.5, color: 'var(--text-2)', whiteSpace: 'nowrap', overflow: 'hidden', textOverflow: 'ellipsis' }}>{d.label}</div>
          <div className="bar" style={{ height: 12 }}>
            <i style={{ width: `${(d.value / max) * 100}%`, animation: `growbar 1s ${i * 0.07}s cubic-bezier(.22,.61,.36,1) both` }} />
          </div>
          <div style={{ fontSize: 12.5, fontWeight: 700 }}>{formatNumber(d.value)}</div>
        </div>
      ))}
    </div>
  );
}

// ── Colored Avatar ────────────────────────────────────────────────────────

function AvatarEl({ initials, hue = 222, size }: { initials: string; hue?: number; size?: 'sm' | 'lg' }) {
  const cls = 'avatar' + (size === 'sm' ? ' sm' : size === 'lg' ? ' lg' : '');
  return (
    <div className={cls} style={{ background: `linear-gradient(145deg, oklch(0.62 0.15 ${hue}), oklch(0.48 0.16 ${hue}))` }}>
      {initials}
    </div>
  );
}

// ── MiniList ──────────────────────────────────────────────────────────────

interface MiniRow {
  title: string;
  sub: string;
  meta: string;
  badgeLabel: string;
  badgeCls: string;
  initials: string;
  hue: number;
}

function MiniList({ title, to, rows, loading }: { title: string; to: string; rows: MiniRow[]; loading?: boolean }) {
  return (
    <div className="card card-pad">
      <div className="card-title-row">
        <h3 style={{ fontSize: 16 }}>{title}</h3>
        <Link to={to} className="link">همه</Link>
      </div>
      {loading ? (
        <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
          {Array.from({ length: 5 }).map((_, i) => (
            <div key={i} style={{ display: 'flex', gap: 11, alignItems: 'center' }}>
              <div className="skeleton" style={{ width: 32, height: 32, borderRadius: '50%', flexShrink: 0 }} />
              <div style={{ flex: 1 }}>
                <div className="skeleton" style={{ height: 13, borderRadius: 5, width: '70%', marginBottom: 5 }} />
                <div className="skeleton" style={{ height: 11, borderRadius: 5, width: '50%' }} />
              </div>
            </div>
          ))}
        </div>
      ) : !rows.length ? (
        <p className="muted" style={{ textAlign: 'center', padding: '32px 0', fontSize: 13.5 }}>موردی ثبت نشده</p>
      ) : (
        <div style={{ display: 'flex', flexDirection: 'column' }}>
          {rows.map((r, i) => (
            <div key={i} style={{ display: 'flex', alignItems: 'center', gap: 11, padding: '10px 0', borderBottom: i < rows.length - 1 ? '1px solid var(--border)' : 'none' }}>
              <AvatarEl initials={r.initials} hue={r.hue} size="sm" />
              <div style={{ flex: 1, minWidth: 0 }}>
                <b style={{ fontSize: 13.5, display: 'block', whiteSpace: 'nowrap', overflow: 'hidden', textOverflow: 'ellipsis' }}>{r.title}</b>
                <span className="muted" style={{ fontSize: 11.5 }}>{r.sub}</span>
              </div>
              <div style={{ textAlign: 'start', flexShrink: 0 }}>
                <span className={`badge ${r.badgeCls}`}><span className="bdot" />{r.badgeLabel}</span>
                <div className="muted" style={{ fontSize: 10.5, marginTop: 3 }}>{r.meta}</div>
              </div>
            </div>
          ))}
        </div>
      )}
    </div>
  );
}

// ── Skeleton ──────────────────────────────────────────────────────────────

function KpiSkeleton() {
  return (
    <div className="stat">
      <div className="skeleton" style={{ width: 40, height: 40, borderRadius: 12, marginBottom: 14 }} />
      <div className="skeleton" style={{ height: 13, borderRadius: 6, width: '60%', marginBottom: 6 }} />
      <div className="skeleton" style={{ height: 26, borderRadius: 6, width: '45%', marginBottom: 4 }} />
      <div className="skeleton" style={{ height: 12, borderRadius: 6, width: '75%' }} />
    </div>
  );
}

// ── Main Component ────────────────────────────────────────────────────────

export default function DashboardPage() {
  const [chartMode, setChartMode] = useState<'appts' | 'rev'>('appts');

  const statsQ = useQuery({
    queryKey: ['dashboard-stats'],
    queryFn: () => api.get<ApiResponse<DashboardStats>>('/api/v1/admin/dashboard/stats'),
    staleTime: 60_000,
  });
  const chartsQ = useQuery({
    queryKey: ['dashboard-charts'],
    queryFn: () => api.get<ApiResponse<ChartData>>('/api/v1/admin/dashboard/charts'),
    staleTime: 120_000,
  });
  const recentQ = useQuery({
    queryKey: ['dashboard-recent'],
    queryFn: () => api.get<ApiResponse<RecentData>>('/api/v1/admin/dashboard/recent'),
    staleTime: 30_000,
  });

  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const stats  = useMemo<DashboardStats | undefined>(() => (statsQ.data?.data  as any)?.data ?? statsQ.data?.data,  [statsQ.data]);
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const charts = useMemo<ChartData | undefined>(     () => (chartsQ.data?.data as any)?.data ?? chartsQ.data?.data, [chartsQ.data]);
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  const recent = useMemo<RecentData | undefined>(    () => (recentQ.data?.data as any)?.data ?? recentQ.data?.data, [recentQ.data]);

  const fn = (n?: number) => n !== undefined ? formatNumber(n) : '—';
  const fr = (n?: number) => n !== undefined ? formatRial(n) : '—';
  const today = new Date().toLocaleDateString('fa-IR', { year: 'numeric', month: 'long', day: 'numeric' });
  const isFetching = statsQ.isFetching || chartsQ.isFetching || recentQ.isFetching;

  // Chart data transformations
  const apptSeries = useMemo(() => charts?.appointments_30d?.map(d => d.count) ?? [], [charts]);
  const revSeries  = useMemo(() => charts?.revenue_30d?.map(d => d.amount) ?? [], [charts]);
  const donutData  = useMemo(() =>
    (charts?.appointment_status ?? []).slice(0, 7).map(s => ({
      label: APPT_LABEL[s.status] ?? s.status,
      value: s.count,
      color: APPT_COLOR[s.status] ?? '#94a3b8',
    })), [charts]);
  const hbarsData = useMemo(() =>
    (charts?.top_specialties ?? []).map(s => ({ label: s.name, value: s.count })), [charts]);

  // KPI cards
  const kpiCards = [
    { label: 'کل کاربران',      value: fn(stats?.total_users),        hint: 'رشد نسبت به ماه قبل',                                  icon: UserGroupIcon,        color: 'var(--violet)',  bg: 'var(--violet-bg)'   },
    { label: 'پزشکان فعال',     value: fn(stats?.active_doctors),     hint: stats ? `از ${fn(stats.total_doctors)} پزشک` : '',      icon: HeartIcon,            color: 'var(--success)', bg: 'var(--success-bg)'  },
    { label: 'کلینیک‌ها',       value: fn(stats?.total_clinics),      hint: '',                                                      icon: BuildingOffice2Icon,  color: 'var(--info)',    bg: 'var(--info-bg)'     },
    { label: 'نوبت‌های امروز',  value: fn(stats?.today_appointments), hint: stats ? `ماه جاری: ${fn(stats.this_month_appointments)}` : '', icon: CalendarDaysIcon, color: 'var(--warning)', bg: 'var(--warning-bg)'  },
    { label: 'درآمد این ماه',   value: fr(stats?.this_month_revenue), hint: 'تومان',                                                 icon: CreditCardIcon,       color: 'var(--primary)', bg: 'var(--primary-soft)' },
    { label: 'در انتظار بررسی', value: fn(stats ? stats.pending_comments + stats.pending_settlements : undefined), hint: stats ? `${fn(stats.pending_comments)} نظر · ${fn(stats.pending_settlements)} تسویه` : '', icon: BellAlertIcon, color: 'var(--danger)', bg: 'var(--danger-bg)' },
  ];

  // Quick actions
  const quickActions = [
    { label: 'پزشکان',    to: '/admin/doctors',      icon: HeartIcon,                  color: 'var(--success)', bg: 'var(--success-bg)'   },
    { label: 'کلینیک‌ها', to: '/admin/clinics',      icon: BuildingOffice2Icon,        color: 'var(--info)',    bg: 'var(--info-bg)'      },
    { label: 'نوبت‌ها',   to: '/admin/appointments', icon: CalendarDaysIcon,           color: 'var(--warning)', bg: 'var(--warning-bg)'   },
    { label: 'پرداخت‌ها', to: '/admin/payments',     icon: CreditCardIcon,             color: 'var(--danger)',  bg: 'var(--danger-bg)'    },
    { label: 'نظرات',     to: '/admin/comments',     icon: ChatBubbleLeftEllipsisIcon, color: 'var(--violet)',  bg: 'var(--violet-bg)'    },
    { label: 'کاربران',   to: '/admin/users',        icon: UserGroupIcon,              color: 'var(--primary)', bg: 'var(--primary-soft)' },
  ];

  // Timeline events
  const timelineEvents = useMemo(() => {
    if (!recent) return [];
    const evs: { title: string; sub: string; time: string; color: string }[] = [];
    (recent.appointments ?? []).slice(0, 4).forEach(a => {
      evs.push({ title: `نوبت ${APPT_LABEL[a.status] ?? a.status}`, sub: `${a.user_name || a.user_mobile} · دکتر ${a.doctor_name}`, time: a.created_at, color: APPT_COLOR[a.status] ?? '#94a3b8' });
    });
    (recent.payments ?? []).slice(0, 3).forEach(p => {
      evs.push({ title: `پرداخت ${PAY_LABEL[p.status] ?? p.status}`, sub: `${p.user_name || p.user_mobile} · ${formatRial(p.amount)}`, time: p.created_at, color: PAY_COLOR[p.status] ?? '#94a3b8' });
    });
    (recent.users ?? []).slice(0, 3).forEach(u => {
      evs.push({ title: 'ثبت‌نام کاربر جدید', sub: u.name || u.mobile, time: u.created_at, color: '#8b5cf6' });
    });
    return evs.sort((a, b) => new Date(b.time).getTime() - new Date(a.time).getTime()).slice(0, 8);
  }, [recent]);

  // MiniList rows
  const apptRows = useMemo<MiniRow[]>(() =>
    (recent?.appointments ?? []).slice(0, 5).map(a => ({
      title: a.user_name || a.user_mobile,
      sub: `دکتر ${a.doctor_name}`,
      meta: formatDateTime(a.slot_start),
      badgeLabel: APPT_LABEL[a.status] ?? a.status,
      badgeCls: APPT_CLS[a.status] ?? 'gray',
      initials: (a.user_name || a.user_mobile).slice(0, 2),
      hue: 222,
    })), [recent]);

  const payRows = useMemo<MiniRow[]>(() =>
    (recent?.payments ?? []).slice(0, 5).map(p => ({
      title: p.user_name || p.user_mobile,
      sub: formatRial(p.amount),
      meta: formatDateTime(p.created_at),
      badgeLabel: PAY_LABEL[p.status] ?? p.status,
      badgeCls: PAY_CLS[p.status] ?? 'gray',
      initials: (p.user_name || p.user_mobile).slice(0, 2),
      hue: 162,
    })), [recent]);

  const userRows = useMemo<MiniRow[]>(() =>
    (recent?.users ?? []).slice(0, 5).map(u => ({
      title: u.name || u.mobile,
      sub: u.name ? u.mobile : '',
      meta: formatDateTime(u.created_at),
      badgeLabel: 'فعال',
      badgeCls: 'green',
      initials: (u.name || u.mobile).slice(0, 2),
      hue: 256,
    })), [recent]);

  return (
    <div className="fade-in">

      {/* Page header */}
      <div className="card-title-row" style={{ marginBottom: 'var(--gap)' }}>
        <div>
          <h1 className="section-title">داشبورد</h1>
          <div className="muted" style={{ fontSize: 13, marginTop: 2 }}>{today} · نمای کلی عملکرد مجموعه</div>
        </div>
        <div style={{ display: 'flex', gap: 10 }}>
          <button className="btn ghost sm">گزارش</button>
          <button className="btn primary sm" disabled={isFetching}
            onClick={() => { statsQ.refetch(); chartsQ.refetch(); recentQ.refetch(); }}>
            <ArrowPathIcon style={{ width: 14, height: 14 }} />
            به‌روزرسانی
          </button>
        </div>
      </div>

      {/* Stat cards (6-col grid) */}
      <div className="stat-grid">
        {statsQ.isLoading
          ? Array.from({ length: 6 }).map((_, i) => <KpiSkeleton key={i} />)
          : kpiCards.map(c => (
            <div key={c.label} className="stat">
              <div className="ico" style={{ background: c.bg, color: c.color }}>
                <c.icon style={{ width: 21, height: 21 }} />
              </div>
              <div className="lbl">{c.label}</div>
              <div className="val">{c.value}</div>
              <div style={{ display: 'flex', gap: 8, justifyContent: 'space-between' }}>
                <span className="hint">{c.hint}</span>
              </div>
            </div>
          ))
        }
      </div>

      {/* dash-main: Donut (360px) + LineChart (1fr) */}
      <div className="dash-main">
        <div className="card card-pad">
          <div className="card-title-row"><h3 style={{ fontSize: 16 }}>وضعیت نوبت‌ها</h3></div>
          {chartsQ.isLoading ? (
            <>
              <div className="skeleton" style={{ width: 190, height: 190, borderRadius: '50%', margin: '6px auto 18px' }} />
              <div style={{ display: 'flex', flexDirection: 'column', gap: 11 }}>
                {Array.from({ length: 5 }).map((_, i) => (
                  <div key={i} className="skeleton" style={{ height: 14, borderRadius: 5 }} />
                ))}
              </div>
            </>
          ) : (
            <>
              <div style={{ display: 'flex', justifyContent: 'center', margin: '6px 0 18px' }}>
                <SvgDonut data={donutData} />
              </div>
              <div style={{ display: 'flex', flexDirection: 'column', gap: 11 }}>
                {donutData.map((d, i) => (
                  <div key={i} style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', fontSize: 13 }}>
                    <span style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
                      <span style={{ width: 9, height: 9, borderRadius: 3, background: d.color, flexShrink: 0, display: 'inline-block' }} />
                      <span style={{ color: 'var(--text-2)' }}>{d.label}</span>
                    </span>
                    <b>{formatNumber(d.value)}</b>
                  </div>
                ))}
              </div>
            </>
          )}
        </div>

        <div className="card card-pad">
          <div className="card-title-row">
            <h3 style={{ fontSize: 16 }}>{chartMode === 'appts' ? 'نوبت‌ها' : 'درآمد'} — ۳۰ روز اخیر</h3>
            <div className="seg">
              <button className={chartMode === 'appts' ? 'on' : ''} onClick={() => setChartMode('appts')}>نوبت‌ها</button>
              <button className={chartMode === 'rev' ? 'on' : ''} onClick={() => setChartMode('rev')}>درآمد</button>
            </div>
          </div>
          {chartsQ.isLoading ? (
            <div className="skeleton" style={{ height: 236, borderRadius: 'var(--r)' }} />
          ) : (
            <SvgLineChart key={chartMode}
              data={chartMode === 'appts' ? apptSeries : revSeries}
              color={chartMode === 'appts' ? 'var(--primary)' : 'var(--success)'}
              h={236} />
          )}
        </div>
      </div>

      {/* Top specialties (HBars) */}
      <div className="card card-pad" style={{ marginBottom: 'var(--gap)' }}>
        <div className="card-title-row">
          <h3 style={{ fontSize: 16 }}>پرتکرارترین تخصص‌ها</h3>
          <span className="muted" style={{ fontSize: 12 }}>بر اساس تعداد نوبت</span>
        </div>
        {chartsQ.isLoading ? (
          <div className="skeleton" style={{ height: 200, borderRadius: 'var(--r)' }} />
        ) : !hbarsData.length ? (
          <p className="muted" style={{ textAlign: 'center', padding: '40px 0', fontSize: 13.5 }}>داده‌ای موجود نیست</p>
        ) : (
          <SvgHBars data={hbarsData} />
        )}
      </div>

      {/* grid-2: Quick access + Timeline */}
      <div className="grid-2" style={{ marginBottom: 'var(--gap)' }}>
        <div className="card card-pad">
          <div className="card-title-row"><h3 style={{ fontSize: 16 }}>دسترسی سریع</h3></div>
          <div className="quick-grid" style={{ gridTemplateColumns: 'repeat(3,1fr)' }}>
            {quickActions.map(a => (
              <Link key={a.to} to={a.to} className="quick">
                <span className="qi" style={{ background: a.bg, color: a.color }}>
                  <a.icon style={{ width: 22, height: 22 }} />
                </span>
                <b>{a.label}</b>
              </Link>
            ))}
          </div>
        </div>

        <div className="card card-pad">
          <div className="card-title-row">
            <h3 style={{ fontSize: 16 }}>آخرین رویدادها</h3>
          </div>
          {recentQ.isLoading ? (
            <div style={{ display: 'flex', flexDirection: 'column', gap: 14 }}>
              {Array.from({ length: 5 }).map((_, i) => (
                <div key={i} style={{ display: 'flex', gap: 13, alignItems: 'flex-start' }}>
                  <div className="skeleton" style={{ width: 9, height: 9, borderRadius: '50%', marginTop: 7, flexShrink: 0 }} />
                  <div style={{ flex: 1 }}>
                    <div className="skeleton" style={{ height: 13, borderRadius: 5, width: '70%', marginBottom: 5 }} />
                    <div className="skeleton" style={{ height: 11, borderRadius: 5, width: '50%' }} />
                  </div>
                </div>
              ))}
            </div>
          ) : !timelineEvents.length ? (
            <p className="muted" style={{ textAlign: 'center', padding: '32px 0', fontSize: 13.5 }}>رویدادی ثبت نشده</p>
          ) : (
            <div>
              {timelineEvents.map((e, i) => (
                <div className="timeline-item" key={i}>
                  <span className="tl-dot" style={{ background: e.color }}></span>
                  <div className="tl-body">
                    <b>{e.title}</b>
                    {e.sub && <p>{e.sub}</p>}
                    <time>{formatDateTime(e.time)}</time>
                  </div>
                </div>
              ))}
            </div>
          )}
        </div>
      </div>

      {/* dash-3: Three MiniLists */}
      <div className="dash-3">
        <MiniList title="آخرین نوبت‌ها"   to="/admin/appointments" rows={apptRows} loading={recentQ.isLoading} />
        <MiniList title="آخرین پرداخت‌ها" to="/admin/payments"     rows={payRows}  loading={recentQ.isLoading} />
        <MiniList title="کاربران جدید"     to="/admin/users"        rows={userRows} loading={recentQ.isLoading} />
      </div>

    </div>
  );
}