Sendungsverfolgung im Shop

'use client';

import { useEffect, useId, useRef, useState } from 'react';
import { cn, formatTime, prefersReducedMotion, round, useInView, useLocale, useTexts, type Locale } from '@/lib/kit';
import { Button } from '@/components/ui/button';
import { Icon, type IconName } from '@/components/ui/icon';
import { useShake } from '@/components/ui/input';
import { ProductMedia, ShopMotion } from '@/components/ui/product-image';

/*
 * Where is my order. Five stages from ordered to delivered.
 *
 *   timeline  the delivery window large, the stages as a bar (a column on phones), every scan below
 *   map       a drawn map with the route, the van on its way and the stops still ahead
 *   lookup    order number and email or postcode, then the status, for guests without an account
 *   parcels   an order in several parcels as tabs, each with its own progress and contents
 *
 * Times are "HH:MM" and dates "YYYY-MM-DD", both shown in the format of the language.
 */

export type OrderTrackingVariant = 'timeline' | 'map' | 'lookup' | 'parcels';
export type TrackingStage = 'ordered' | 'packed' | 'shipped' | 'out' | 'delivered';

export interface TrackingEvent {
  /** "YYYY-MM-DD" */
  date: string;
  /** "HH:MM" */
  time: string;
  text: string;
  place?: string;
  stage?: TrackingStage;
}

export interface TrackingItem {
  name: string;
  quantity?: number;
  variant?: string;
  image?: React.ReactNode;
}

export interface TrackingParcel {
  id: string;
  /** e.g. "Parcel 1" or what is inside */
  label?: string;
  trackingNumber: string;
  stage: TrackingStage;
  /** Expected delivery: a date and a window */
  eta?: { date: string; from?: string; to?: string };
  /** Newest first */
  events: TrackingEvent[];
  items?: TrackingItem[];
}

export interface TrackingOrder {
  number: string;
  /** For the lookup check */
  email?: string;
  postcode?: string;
  /** "YYYY-MM-DD" */
  placed?: string;
  /** Delivery address, one line */
  address?: string;
  parcels: TrackingParcel[];
}

export interface OrderTrackingProps {
  variant?: OrderTrackingVariant;
  order?: TrackingOrder;
  /** lookup: the orders the form can find. Or pass onLookup. */
  orders?: TrackingOrder[];
  onLookup?: (number: string, contact: string) => Promise<TrackingOrder | null> | TrackingOrder | null;
  /** map: stops before yours and minutes until arrival */
  live?: { stopsAway: number; minutes: number; driver?: string };
  /** Links for the actions */
  links?: { help?: string; reschedule?: string };
  labels?: Partial<Texts>;
  className?: string;
}

const TEXTS = {
  en: {
    ordered: 'Ordered',
    packed: 'Packed',
    shipped: 'On its way',
    out: 'Out for delivery',
    delivered: 'Delivered',
    order: 'Order',
    tracking: 'Tracking number',
    copy: 'Copy tracking number',
    copied: 'Copied',
    arrives: 'Arrives',
    arrived: 'Delivered',
    between: 'between {from} and {to}',
    history: 'Shipment history',
    showAll: 'Show all {n} updates',
    showLess: 'Show fewer updates',
    notify: 'Text me before it arrives',
    notifyOn: 'We will text you about 30 minutes before',
    reschedule: 'Change delivery',
    help: 'Get help with this order',
    deliverTo: 'Delivering to',
    stopsAway: '{n} stops before yours',
    oneStop: 'One stop before yours',
    nextStop: 'You are the next stop',
    minutes: 'about {n} min',
    liveNote: 'Live position, updated every minute',
    driver: 'Your driver',
    message: 'Message',
    depot: 'Depot',
    home: 'You',
    lookupTitle: 'Track your order',
    lookupText: 'Your order number is all it takes, you will find it in the confirmation email.',
    number: 'Order number',
    numberHint: 'e.g. NH-48210',
    contact: 'Email or postcode',
    find: 'Track order',
    finding: 'Searching',
    eNumber: 'Enter your order number, it starts with two letters.',
    eNumberFormat: 'Order numbers look like NH-48210. Check the confirmation email.',
    eContact: 'Enter the email of the order or the postcode of the delivery address.',
    eNotFound: 'We found no order with these details. Check the number and the email or postcode.',
    another: 'Track another order',
    latest: 'Latest update',
    parcel: 'Parcel',
    parcelsOf: '{n} parcels',
    inside: 'In this parcel',
    progress: 'Progress',
    current: 'current stage',
    done: 'done',
    next: 'to come',
  },
  de: {
    ordered: 'Bestellt',
    packed: 'Verpackt',
    shipped: 'Unterwegs',
    out: 'In Zustellung',
    delivered: 'Zugestellt',
    order: 'Bestellung',
    tracking: 'Sendungsnummer',
    copy: 'Sendungsnummer kopieren',
    copied: 'Kopiert',
    arrives: 'Ankunft',
    arrived: 'Zugestellt',
    between: 'zwischen {from} und {to}',
    history: 'Sendungsverlauf',
    showAll: 'Alle {n} Meldungen zeigen',
    showLess: 'Weniger Meldungen zeigen',
    notify: 'Per SMS vorher Bescheid geben',
    notifyOn: 'Wir schreiben dir etwa 30 Minuten vorher',
    reschedule: 'Zustellung ändern',
    help: 'Hilfe zu dieser Bestellung',
    deliverTo: 'Lieferung an',
    stopsAway: 'Noch {n} Stopps vor dir',
    oneStop: 'Noch ein Stopp vor dir',
    nextStop: 'Du bist der nächste Stopp',
    minutes: 'etwa {n} Min.',
    liveNote: 'Live-Position, jede Minute aktualisiert',
    driver: 'Dein Fahrer',
    message: 'Nachricht',
    depot: 'Depot',
    home: 'Du',
    lookupTitle: 'Bestellung verfolgen',
    lookupText: 'Deine Bestellnummer genügt, sie steht in der Bestätigungsmail.',
    number: 'Bestellnummer',
    numberHint: 'z. B. NH-48210',
    contact: 'E-Mail oder Postleitzahl',
    find: 'Bestellung verfolgen',
    finding: 'Wird gesucht',
    eNumber: 'Gib deine Bestellnummer ein, sie beginnt mit zwei Buchstaben.',
    eNumberFormat: 'Bestellnummern sehen aus wie NH-48210. Schau in die Bestätigungsmail.',
    eContact: 'Gib die E-Mail der Bestellung oder die Postleitzahl der Lieferadresse ein.',
    eNotFound: 'Zu diesen Angaben finden wir keine Bestellung. Prüf die Nummer und die E-Mail oder Postleitzahl.',
    another: 'Andere Bestellung verfolgen',
    latest: 'Letzte Meldung',
    parcel: 'Paket',
    parcelsOf: '{n} Pakete',
    inside: 'In diesem Paket',
    progress: 'Fortschritt',
    current: 'aktuelle Etappe',
    done: 'erledigt',
    next: 'folgt',
  },
};

type Texts = (typeof TEXTS)['en'];

const STAGES: TrackingStage[] = ['ordered', 'packed', 'shipped', 'out', 'delivered'];
const STAGE_ICON: Record<TrackingStage, IconName> = { ordered: 'receipt', packed: 'package', shipped: 'truck', out: 'map-pin', delivered: 'home' };
const fill = (s: string, vars: Record<string, string | number>) => s.replace(/\{(\w+)\}/g, (_, k) => String(vars[k] ?? ''));
const idx = (s: TrackingStage) => STAGES.indexOf(s);

function formatDate(locale: Locale, iso: string, style: 'long' | 'short' = 'short') {
  const d = new Date(iso + 'T12:00:00Z');
  return new Intl.DateTimeFormat(locale === 'de' ? 'de-DE' : 'en-US', style === 'long' ? { weekday: 'long', day: 'numeric', month: 'long', timeZone: 'UTC' } : { weekday: 'short', day: 'numeric', month: 'short', timeZone: 'UTC' }).format(d);
}

/* ------------------------------------------------------------------ */
/* Parts                                                               */
/* ------------------------------------------------------------------ */

/** The five stages as a bar from 768 px and as a column below */
function Stages({ stage, t, compact }: { stage: TrackingStage; t: Texts; compact?: boolean }) {
  const at = idx(stage);
  const [ref, inView] = useInView<HTMLOListElement>();
  const pct = (at / (STAGES.length - 1)) * 100;
  return (
    <ol ref={ref} aria-label={t.progress} className={cn('relative', compact ? 'grid grid-cols-5' : 'max-md:space-y-0 md:grid md:grid-cols-5')}>
      {/* The line under the dots: across from 768 px, down on phones */}
      <span aria-hidden className={cn('absolute bg-track', compact ? 'left-[10%] right-[10%] top-4 h-0.5' : 'bottom-5 left-[19px] top-5 w-0.5 md:bottom-auto md:left-[10%] md:right-[10%] md:top-5 md:h-0.5 md:w-auto')}>
        <span
          className={cn('absolute left-0 top-0 bg-primary transition-[width,height] duration-[1200ms] ease-[var(--ease-kit)] motion-reduce:transition-none', compact ? 'h-full' : 'w-full md:h-full md:w-auto max-md:hidden')}
          style={{ width: `${inView ? pct : 0}%` }}
        />
        {!compact && <span className="absolute left-0 top-0 w-full bg-primary transition-[height] duration-[1200ms] ease-[var(--ease-kit)] motion-reduce:transition-none md:hidden" style={{ height: `${inView ? pct : 0}%` }} />}
      </span>
      {STAGES.map((s, i) => {
        const done = i < at;
        const now = i === at;
        return (
          <li key={s} className={cn('relative flex items-center gap-4', compact ? 'flex-col gap-2 text-center' : 'py-2 md:flex-col md:gap-3 md:py-0 md:text-center')} aria-current={now ? 'step' : undefined}>
            <span
              className={cn(
                'relative grid shrink-0 place-items-center rounded-full border-2 transition-[background-color,border-color,color] duration-500',
                compact ? 'size-8' : 'size-10',
                done || now ? 'border-primary bg-primary text-primary-foreground' : 'border-border-strong bg-background text-muted-foreground',
              )}
              style={{ transitionDelay: inView ? `${200 + i * 220}ms` : '0ms' }}
            >
              {now && i < STAGES.length - 1 && <span aria-hidden className="absolute -inset-1.5 animate-kit-pulse rounded-full border-2 border-primary/40 motion-reduce:animate-none" />}
              <Icon name={done ? 'check' : STAGE_ICON[s]} size={compact ? 14 : 17} strokeWidth={done ? 2.4 : 1.8} />
            </span>
            <span className={cn('text-[13px] leading-tight', compact && 'max-sm:text-[11px]', now ? 'font-semibold text-foreground' : done ? 'text-foreground' : 'text-muted-foreground')}>
              {t[s]}
              <span className="sr-only">, {now ? t.current : done ? t.done : t.next}</span>
            </span>
          </li>
        );
      })}
    </ol>
  );
}

function CopyNumber({ value, t }: { value: string; t: Texts }) {
  const [copied, setCopied] = useState(false);
  const timer = useRef<ReturnType<typeof setTimeout>>(undefined);
  useEffect(() => () => clearTimeout(timer.current), []);
  return (
    <span className="inline-flex items-center gap-1">
      <span className="text-[13px] tabular-nums tracking-[0.04em] text-foreground">{value}</span>
      <button
        type="button"
        onClick={() => {
          navigator.clipboard?.writeText(value).catch(() => {});
          setCopied(true);
          clearTimeout(timer.current);
          timer.current = setTimeout(() => setCopied(false), 1600);
        }}
        aria-label={copied ? t.copied : t.copy}
        className="relative grid size-8 place-items-center rounded-md text-muted-foreground transition-colors after:absolute after:-inset-1.5 hover:bg-accent hover:text-foreground"
      >
        <Icon name={copied ? 'check' : 'copy'} size={14} className={cn(copied && 'animate-[kitshop-pop_0.35s_var(--ease-kit)] text-success')} />
      </button>
      <span role="status" className="sr-only">
        {copied ? t.copied : ''}
      </span>
    </span>
  );
}

function Eta({ parcel, t, size = 'lg' }: { parcel: TrackingParcel; t: Texts; size?: 'lg' | 'md' }) {
  const locale = useLocale();
  const delivered = parcel.stage === 'delivered';
  const e = parcel.eta;
  const last = parcel.events[0];
  return (
    <div>
      <p className="text-[13px] font-medium text-muted-foreground">{delivered ? t.arrived : t.arrives}</p>
      <p className={cn('mt-1 text-balance font-semibold tracking-[-0.02em] text-foreground', size === 'lg' ? 'text-h3' : 'text-[19px]')}>
        {delivered && last ? formatDate(locale, last.date, 'long') : e ? formatDate(locale, e.date, 'long') : ''}
      </p>
      {!delivered && e?.from && e.to && <p className="mt-1 text-[15px] text-foreground">{fill(t.between, { from: formatTime(e.from, locale), to: formatTime(e.to, locale) })}</p>}
      {delivered && last && <p className="mt-1 text-[15px] text-foreground">{formatTime(last.time, locale)}{last.place ? ` · ${last.place}` : ''}</p>}
    </div>
  );
}

function Events({ events, t, initial = 3 }: { events: TrackingEvent[]; t: Texts; initial?: number }) {
  const locale = useLocale();
  const [all, setAll] = useState(false);
  const shown = all ? events : events.slice(0, initial);
  const list = useId();
  return (
    <div>
      <ol id={list} className="relative">
        {shown.map((e, i) => {
          const day = i === 0 || shown[i - 1].date !== e.date;
          return (
            <li key={`${e.date}${e.time}${i}`} className={cn('relative grid grid-cols-[4.75rem_1.5rem_minmax(0,1fr)] gap-x-2 sm:grid-cols-[7.5rem_1.5rem_minmax(0,1fr)] sm:gap-x-3', i >= initial && 'animate-[kitshop-in_0.4s_var(--ease-kit)_both]')} style={i >= initial ? { animationDelay: `${(i - initial) * 50}ms` } : undefined}>
              <span className="pt-0.5 text-right text-[12px] leading-tight tabular-nums text-muted-foreground">
                {day && <span className="block font-medium text-foreground">{formatDate(locale, e.date)}</span>}
                {formatTime(e.time, locale)}
              </span>
              <span className="relative flex justify-center" aria-hidden>
                {i < shown.length - 1 && <span className="absolute bottom-0 top-3 w-px bg-border" />}
                <span className={cn('relative mt-1 size-2.5 rounded-full', i === 0 ? 'bg-primary ring-4 ring-[color-mix(in_oklab,var(--primary)_18%,transparent)]' : 'bg-border-strong')} />
              </span>
              <span className="pb-5">
                <span className={cn('block text-[14px] leading-snug', i === 0 ? 'font-medium text-foreground' : 'text-foreground')}>{e.text}</span>
                {e.place && <span className="mt-0.5 block text-[12px] text-muted-foreground">{e.place}</span>}
              </span>
            </li>
          );
        })}
      </ol>
      {events.length > initial && (
        <button type="button" onClick={() => setAll(!all)} aria-expanded={all} aria-controls={list} className="ml-[5.25rem] inline-flex h-10 items-center gap-1.5 rounded-md px-2 text-[13px] font-medium text-foreground hover:bg-accent max-sm:h-11 sm:ml-[8.75rem]">
          {all ? t.showLess : fill(t.showAll, { n: events.length })}
          <Icon name="chevron-down" size={15} className={cn('transition-transform motion-reduce:transition-none', all && 'rotate-180')} />
        </button>
      )}
    </div>
  );
}

function NotifySwitch({ t }: { t: Texts }) {
  const [on, setOn] = useState(false);
  const id = useId();
  return (
    <div className="flex items-start justify-between gap-4">
      <div>
        <p id={id} className="text-[14px] font-medium text-foreground">
          {t.notify}
        </p>
        <p className={cn('mt-0.5 text-[12px] text-muted-foreground transition-opacity', !on && 'opacity-0')} aria-hidden={!on}>
          {t.notifyOn}
        </p>
      </div>
      <button
        type="button"
        role="switch"
        aria-checked={on}
        aria-labelledby={id}
        onClick={() => setOn(!on)}
        className={cn('relative mt-0.5 h-7 w-12 shrink-0 rounded-full transition-colors duration-300 after:absolute after:-inset-2', on ? 'bg-primary' : 'bg-track')}
      >
        <span className={cn('absolute left-0.5 top-0.5 size-6 rounded-full bg-white shadow-[var(--shadow-sm)] transition-transform duration-300 ease-[var(--ease-kit)] motion-reduce:transition-none', on && 'translate-x-5')} />
      </button>
    </div>
  );
}

/* ------------------------------------------------------------------ */
/* timeline                                                            */
/* ------------------------------------------------------------------ */

function Timeline(props: OrderTrackingProps & { t: Texts }) {
  const { t } = props;
  const order = props.order;
  const p = order?.parcels[0];
  if (!order || !p) return null;
  return (
    <section className={cn('py-12 sm:py-16 lg:py-20', props.className)}>
      <ShopMotion />
      <div className="kit-container">
        <div className="mx-auto max-w-[58rem]">
          <div className="flex flex-wrap items-baseline justify-between gap-x-6 gap-y-2">
            <p className="text-[13px] text-muted-foreground">
              {t.order} <span className="font-medium tabular-nums text-foreground">{order.number}</span>
            </p>
            <p className="flex items-center gap-2 text-[13px] text-muted-foreground">
              {t.tracking} <CopyNumber value={p.trackingNumber} t={t} />
            </p>
          </div>
          <div className="mt-4 overflow-hidden rounded-2xl border border-border bg-card shadow-[var(--highlight),var(--shadow-md)]">
            <div className="grid grid-cols-1 gap-6 p-5 sm:p-8 md:grid-cols-[minmax(0,1fr)_auto] md:items-end">
              <div className="kit-rise">
                <Eta parcel={p} t={t} />
              </div>
              {order.address && (
                <p className="kit-rise flex items-start gap-2 text-[13px] text-muted-foreground md:max-w-[16rem] md:text-right" style={{ '--kit-delay': '80ms' } as React.CSSProperties}>
                  <Icon name="map-pin" size={15} className="mt-0.5 shrink-0 md:order-2" />
                  <span>
                    <span className="block font-medium text-foreground">{t.deliverTo}</span>
                    {order.address}
                  </span>
                </p>
              )}
            </div>
            <div className="border-t border-border px-5 py-6 sm:px-8 sm:py-8">
              <Stages stage={p.stage} t={t} />
            </div>
          </div>
          <div className="mt-8 grid grid-cols-1 gap-8 lg:grid-cols-[minmax(0,1fr)_18rem] lg:gap-12">
            <div>
              <h2 className="mb-5 text-[16px] font-semibold text-foreground">{t.history}</h2>
              <Events events={p.events} t={t} />
            </div>
            <aside className="space-y-5 rounded-2xl border border-border bg-surface p-5 lg:self-start">
              <NotifySwitch t={t} />
              <div className="grid gap-2 border-t border-border pt-5">
                <Button href={props.links?.reschedule ?? '#'} variant="outline" iconLeft="calendar" className="w-full">
                  {t.reschedule}
                </Button>
                <Button href={props.links?.help ?? '#'} variant="ghost" iconLeft="help-circle" className="w-full">
                  {t.help}
                </Button>
              </div>
            </aside>
          </div>
        </div>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* map                                                                 */
/* ------------------------------------------------------------------ */

const ROUTE: [number, number][] = [
  [118, 382], [118, 300], [250, 300], [250, 196], [410, 196], [410, 120], [560, 120], [560, 236], [682, 236], [682, 150],
];

function pointAt(f: number) {
  const segs = ROUTE.slice(1).map((p, i) => Math.hypot(p[0] - ROUTE[i][0], p[1] - ROUTE[i][1]));
  const total = segs.reduce((a, b) => a + b, 0);
  let left = Math.max(0, Math.min(1, f)) * total;
  for (let i = 0; i < segs.length; i++) {
    if (left <= segs[i]) {
      const k = segs[i] ? left / segs[i] : 0;
      const [x0, y0] = ROUTE[i];
      const [x1, y1] = ROUTE[i + 1];
      return { x: round(x0 + (x1 - x0) * k, 1), y: round(y0 + (y1 - y0) * k, 1), dx: x1 - x0, dy: y1 - y0 };
    }
    left -= segs[i];
  }
  const [x, y] = ROUTE[ROUTE.length - 1];
  return { x, y, dx: 1, dy: 0 };
}

/** The drawing, in map units. Roads and water reach past the frame, so a wider or taller window never shows an edge. */
function MapDrawing({ f, t, viewBox, labelScale = 1 }: { f: number; t: Texts; viewBox: string; labelScale?: number }) {
  const at = pointAt(f);
  const pts = ROUTE.map((p) => p.join(' ')).join(' L');
  const block = { fill: 'color-mix(in oklab, var(--foreground) 5%, var(--surface-2))' };
  const park = { fill: 'color-mix(in oklab, var(--success) 15%, var(--surface-2))' };
  const road = { fill: 'none', stroke: 'var(--background)', strokeLinecap: 'round' as const };
  const [dx, dy] = ROUTE[0];
  const [hx, hy] = ROUTE[ROUTE.length - 1];
  const label = (x: number, y: number, text: string, strong?: boolean) => {
    const w = Math.round(text.length * 7.4 + 20);
    return (
      <g transform={`translate(${x} ${y}) scale(${labelScale})`}>
        <rect x={-w / 2} y="-13" width={w} height="26" rx="7" style={{ fill: strong ? 'var(--primary)' : 'var(--background)', filter: 'drop-shadow(0 3px 6px rgb(0 0 0 / 0.2))' }} />
        <text y="4.5" textAnchor="middle" fontSize="13" fontWeight={strong ? 700 : 600} style={{ fill: strong ? 'var(--primary-foreground)' : 'var(--foreground)' }}>
          {text}
        </text>
      </g>
    );
  };
  return (
    <svg viewBox={viewBox} preserveAspectRatio="xMidYMid meet" className="absolute inset-0 size-full">
      <rect x="-800" y="-400" width="2400" height="1300" style={{ fill: 'var(--surface-2)' }} />
      <path d="M-800 430 C -300 380, -100 470, 140 420 S 300 470, 520 420 S 760 380, 1600 400 V 900 H -800 Z" style={{ fill: 'color-mix(in oklab, var(--primary) 16%, var(--surface-2))' }} />
      <rect x="300" y="230" width="90" height="56" rx="10" style={park} />
      <circle cx="740" cy="60" r="70" style={park} />
      <rect x="-200" y="120" width="120" height="70" rx="12" style={park} />
      {[-60, 60, 120, 196, 236, 300, 360].map((y) => <path key={`h${y}`} d={`M-800 ${y} H1600`} style={{ ...road, strokeWidth: y === 196 ? 13 : 7 }} />)}
      {[-250, -150, -40, 40, 118, 190, 250, 330, 410, 480, 560, 620, 682, 750, 840, 930].map((x) => <path key={`v${x}`} d={`M${x} -400 V430`} style={{ ...road, strokeWidth: x === 410 ? 13 : 7 }} />)}
      {[[136, 316, 40, 28], [266, 132, 50, 48], [424, 132, 40, 48], [496, 246, 50, 40], [576, 132, 30, 38], [636, 246, 32, 40], [200, 246, 36, 40], [700, 166, 36, 52], [496, 316, 110, 30], [136, 132, 40, 48], [-120, 246, 60, 40], [-20, 132, 44, 48], [770, 246, 50, 40], [860, 132, 50, 48]].map(([x, y, w, h], i) => (
        <rect key={i} x={x} y={y} width={w} height={h} rx="4" style={block} />
      ))}
      <path d={`M${pts}`} fill="none" strokeWidth="6" strokeLinejoin="round" strokeLinecap="round" strokeDasharray="0.012 0.012" pathLength={1} style={{ stroke: 'color-mix(in oklab, var(--primary) 45%, var(--surface-2))' }} />
      <path d={`M${pts}`} fill="none" strokeWidth="6" strokeLinejoin="round" strokeLinecap="round" pathLength={1} strokeDasharray={`${round(f, 4)} 1`} style={{ stroke: 'var(--primary)' }} />
      <g transform={`translate(${dx} ${dy})`}>
        <rect x="-14" y="-14" width="28" height="28" rx="7" style={{ fill: 'var(--foreground)' }} />
        <path d="M-7 4V-2l7-5 7 5v6Z" fill="none" strokeWidth="2" strokeLinejoin="round" style={{ stroke: 'var(--background)' }} />
      </g>
      {label(dx, dy + 20 + 14 * labelScale, t.depot)}
      <g transform={`translate(${hx} ${hy})`}>
        <circle r="30" className="animate-kit-pulse motion-reduce:animate-none" style={{ fill: 'color-mix(in oklab, var(--primary) 22%, transparent)' }} />
        <circle r="13" style={{ fill: 'var(--primary)', stroke: 'var(--background)', strokeWidth: 4 }} />
      </g>
      {label(hx, hy - 32 - 14 * labelScale, t.home, true)}
      <g transform={`translate(${at.x} ${at.y})`}>
        <circle r="21" style={{ fill: 'var(--background)', filter: 'drop-shadow(0 4px 8px rgb(0 0 0 / 0.25))' }} />
        <g transform={at.dx < 0 ? 'scale(-1 1)' : undefined}>
          <path d="M-11 5V-6h12l5 5h4v6Z" strokeWidth="2.2" strokeLinejoin="round" fill="none" style={{ stroke: 'var(--foreground)' }} />
          <circle cx="-6" cy="6.5" r="2.6" style={{ fill: 'var(--foreground)' }} />
          <circle cx="6" cy="6.5" r="2.6" style={{ fill: 'var(--foreground)' }} />
        </g>
      </g>
    </svg>
  );
}

function RouteMap({ progress, t }: { progress: number; t: Texts }) {
  const [ref, inView] = useInView<HTMLDivElement>();
  const [f, setF] = useState(progress);
  // Drive in from the depot once the map is on screen
  useEffect(() => {
    if (!inView || prefersReducedMotion()) return setF(progress);
    let raf = 0;
    const t0 = performance.now();
    const from = Math.max(0, progress - 0.35);
    const tick = (now: number) => {
      const k = Math.min(1, (now - t0) / 1800);
      setF(from + (progress - from) * (1 - Math.pow(1 - k, 3)));
      if (k < 1) raf = requestAnimationFrame(tick);
    };
    raf = requestAnimationFrame(tick);
    return () => cancelAnimationFrame(raf);
  }, [inView, progress]);
  return (
    <div ref={ref} data-clip-ok className="relative size-full overflow-hidden bg-surface-2" role="img" aria-label={`${t.depot} → ${t.home}`}>
      {/* Below 1024 px the route fills the frame. From 1024 px it moves right, the card stands on the free left side. */}
      <div className="absolute inset-0 lg:hidden">
        <MapDrawing f={f} t={t} viewBox="70 50 670 380" labelScale={1.7} />
      </div>
      <div className="absolute inset-0 max-lg:hidden">
        <MapDrawing f={f} t={t} viewBox="-420 40 1160 400" />
      </div>
    </div>
  );
}

function MapVariant(props: OrderTrackingProps & { t: Texts }) {
  const { t } = props;
  const locale = useLocale();
  const order = props.order;
  const p = order?.parcels[0];
  const live = props.live ?? { stopsAway: 3, minutes: 25 };
  // The minutes count down while the page is open, once a minute
  const [minutes, setMinutes] = useState(live.minutes);
  useEffect(() => {
    setMinutes(live.minutes);
    const id = setInterval(() => setMinutes((m) => Math.max(1, m - 1)), 60_000);
    return () => clearInterval(id);
  }, [live.minutes]);
  if (!order || !p) return null;
  const stops = live.stopsAway;
  const progress = Math.max(0.2, Math.min(0.94, 1 - stops * 0.07 - 0.12));
  const card = (
    <div className="rounded-2xl border border-border bg-card p-5 shadow-[var(--highlight),var(--shadow-lg)] sm:p-6">
      <p className="inline-flex items-center gap-2 text-[12px] font-medium text-success-foreground">
        <span className="relative flex size-2">
          <span className="absolute inset-0 animate-ping rounded-full bg-success opacity-60 motion-reduce:animate-none" />
          <span className="relative size-2 rounded-full bg-success" />
        </span>
        {t.out}
      </p>
      <p className="mt-3 text-h3 font-semibold tracking-[-0.02em] text-foreground">
        <span className="tabular-nums">{fill(t.minutes, { n: minutes })}</span>
      </p>
      <p className="mt-1 text-[14px] text-foreground">{stops > 1 ? fill(t.stopsAway, { n: stops }) : stops === 1 ? t.oneStop : t.nextStop}</p>
      <div className="mt-4 flex gap-1" aria-hidden>
        {Array.from({ length: Math.max(1, stops) + 1 }, (_, i) => (
          <span key={i} className={cn('h-1.5 flex-1 rounded-full', i === Math.max(1, stops) ? 'bg-primary' : 'bg-track')} />
        ))}
      </div>
      {live.driver && (
        <div className="mt-5 flex items-center gap-3 border-t border-border pt-4">
          <span className="grid size-10 place-items-center rounded-full bg-muted text-[14px] font-semibold text-foreground">{live.driver.slice(0, 1)}</span>
          <div className="min-w-0 flex-1">
            <p className="text-[12px] text-muted-foreground">{t.driver}</p>
            <p className="truncate text-[14px] font-medium text-foreground">{live.driver}</p>
          </div>
          <Button href={props.links?.help ?? '#'} variant="outline" size="sm" iconLeft="chat">
            {t.message}
          </Button>
        </div>
      )}
      <div className="mt-5 border-t border-border pt-4 text-[13px] text-muted-foreground">
        <p className="flex items-center justify-between gap-3">
          <span>{t.order}</span>
          <span className="font-medium tabular-nums text-foreground">{order.number}</span>
        </p>
        {p.eta?.from && p.eta.to && (
          <p className="mt-1.5 flex items-center justify-between gap-3">
            <span>{t.arrives}</span>
            <span className="text-right text-foreground">{fill(t.between, { from: formatTime(p.eta.from, locale), to: formatTime(p.eta.to, locale) })}</span>
          </p>
        )}
      </div>
      <p className="mt-4 text-[11px] text-subtle-foreground">{t.liveNote}</p>
    </div>
  );
  return (
    <section className={cn('py-10 sm:py-14 lg:py-16', props.className)}>
      <div className="kit-container">
        {/* Desktop: the card floats over the map's free left side. Below 1024 px it follows the map. */}
        <div className="relative overflow-hidden rounded-2xl border border-border aspect-[16/10] max-sm:aspect-[4/3] lg:aspect-auto lg:h-[34rem]">
          <RouteMap progress={progress} t={t} />
          <div className="absolute bottom-6 left-6 top-6 hidden w-[21rem] flex-col justify-end lg:flex">{card}</div>
        </div>
        <div className="mt-4 lg:hidden">{card}</div>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* lookup                                                              */
/* ------------------------------------------------------------------ */

function Lookup(props: OrderTrackingProps & { t: Texts }) {
  const { t } = props;
  const locale = useLocale();
  const id = useId();
  const [number, setNumber] = useState('');
  const [contact, setContact] = useState('');
  const [errors, setErrors] = useState<{ number?: string; contact?: string; form?: string }>({});
  const [busy, setBusy] = useState(false);
  const [found, setFound] = useState<TrackingOrder | null>(null);
  const form = useRef<HTMLFormElement>(null);
  const result = useRef<HTMLDivElement>(null);
  useShake(form, !!(errors.number || errors.contact || errors.form));
  const submit = async (e: React.FormEvent) => {
    e.preventDefault();
    const n = number.trim().toUpperCase();
    const next: typeof errors = {};
    if (!n) next.number = t.eNumber;
    else if (!/^[A-Z]{2}-?\d{4,8}$/.test(n)) next.number = t.eNumberFormat;
    if (!contact.trim()) next.contact = t.eContact;
    setErrors(next);
    if (next.number || next.contact) {
      requestAnimationFrame(() => form.current?.querySelector<HTMLInputElement>('[aria-invalid="true"]')?.focus());
      return;
    }
    setBusy(true);
    let o: TrackingOrder | null | undefined;
    if (props.onLookup) o = await props.onLookup(n, contact.trim());
    else {
      await new Promise((r) => setTimeout(r, 600));
      const c = contact.trim().toLowerCase();
      o = props.orders?.find((x) => x.number.replace('-', '') === n.replace('-', '') && (x.email?.toLowerCase() === c || x.postcode?.toLowerCase() === c));
    }
    setBusy(false);
    if (!o) return setErrors({ form: t.eNotFound });
    setFound(o);
    requestAnimationFrame(() => result.current?.focus());
  };
  const field = 'h-12 w-full rounded-lg border border-input bg-background px-4 text-base text-foreground shadow-[var(--shadow-sm)] outline-none transition-[border-color,box-shadow] duration-300 placeholder:text-subtle-foreground hover:border-border-strong focus-visible:border-[color-mix(in_oklab,var(--primary)_60%,var(--border-strong))] focus-visible:shadow-[0_0_0_3px_color-mix(in_oklab,var(--primary)_16%,transparent)] aria-[invalid=true]:border-[color-mix(in_oklab,var(--destructive)_75%,var(--border))] sm:text-[15px]';
  const p = found?.parcels[0];
  return (
    <section className={cn('kit-glow py-14 sm:py-20 lg:py-24', props.className)}>
      <ShopMotion />
      <div className="kit-container">
        <div className="mx-auto max-w-[34rem]">
          {found && p ? (
            <div ref={result} tabIndex={-1} className="animate-[kitshop-zoom_0.5s_var(--ease-kit)] rounded-2xl border border-border bg-card p-5 shadow-[var(--highlight),var(--shadow-lg)] outline-none sm:p-7">
              <div className="flex items-start justify-between gap-4">
                <div>
                  <p className="text-[13px] text-muted-foreground">
                    {t.order} <span className="font-medium tabular-nums text-foreground">{found.number}</span>
                  </p>
                  <div className="mt-3">
                    <Eta parcel={p} t={t} size="md" />
                  </div>
                </div>
                <span className="grid size-12 shrink-0 place-items-center rounded-xl bg-[color-mix(in_oklab,var(--primary)_12%,var(--card))] text-primary">
                  <Icon name={STAGE_ICON[p.stage]} size={22} />
                </span>
              </div>
              <div className="mt-6">
                <Stages stage={p.stage} t={t} compact />
              </div>
              {p.events[0] && (
                <div className="mt-6 rounded-xl bg-surface-2 p-4">
                  <p className="text-[12px] font-medium text-muted-foreground">{t.latest}</p>
                  <p className="mt-1 text-[14px] font-medium text-foreground">{p.events[0].text}</p>
                  <p className="mt-0.5 text-[12px] text-muted-foreground">
                    {formatDate(locale, p.events[0].date)} · {formatTime(p.events[0].time, locale)}
                    {p.events[0].place ? ` · ${p.events[0].place}` : ''}
                  </p>
                </div>
              )}
              <div className="mt-6 flex flex-col gap-2 sm:flex-row">
                <Button href={props.links?.help ?? '#'} variant="outline" className="flex-1">
                  {t.help}
                </Button>
                <Button variant="ghost" iconLeft="arrow-left" onClick={() => { setFound(null); setNumber(''); setContact(''); }} className="flex-1">
                  {t.another}
                </Button>
              </div>
            </div>
          ) : (
            <div className="rounded-2xl border border-border bg-card p-5 shadow-[var(--highlight),var(--shadow-lg)] sm:p-8">
              <span className="grid size-12 place-items-center rounded-xl bg-[color-mix(in_oklab,var(--primary)_12%,var(--card))] text-primary">
                <Icon name="package" size={22} />
              </span>
              <h2 className="mt-5 text-h3 font-semibold text-foreground">{t.lookupTitle}</h2>
              <p className="mt-2 text-pretty text-[15px] text-muted-foreground">{t.lookupText}</p>
              <form ref={form} onSubmit={submit} noValidate className="mt-6 space-y-4">
                <div>
                  <label htmlFor={`${id}-n`} className="mb-1.5 block text-[13px] font-medium text-foreground">
                    {t.number}
                  </label>
                  <input id={`${id}-n`} value={number} onChange={(e) => { setNumber(e.target.value); setErrors({}); }} placeholder={t.numberHint} autoComplete="off" autoCapitalize="characters" aria-invalid={!!errors.number || undefined} aria-describedby={errors.number ? `${id}-ne` : undefined} className={cn(field, 'uppercase placeholder:normal-case')} />
                  {errors.number && <p id={`${id}-ne`} className="mt-1.5 animate-[kitshop-in_0.3s_var(--ease-kit)] text-[12px] text-destructive">{errors.number}</p>}
                </div>
                <div>
                  <label htmlFor={`${id}-c`} className="mb-1.5 block text-[13px] font-medium text-foreground">
                    {t.contact}
                  </label>
                  <input id={`${id}-c`} value={contact} onChange={(e) => { setContact(e.target.value); setErrors({}); }} autoComplete="email" aria-invalid={!!errors.contact || undefined} aria-describedby={errors.contact ? `${id}-ce` : undefined} className={field} />
                  {errors.contact && <p id={`${id}-ce`} className="mt-1.5 animate-[kitshop-in_0.3s_var(--ease-kit)] text-[12px] text-destructive">{errors.contact}</p>}
                </div>
                {errors.form && (
                  <p role="alert" className="flex animate-[kitshop-in_0.3s_var(--ease-kit)] gap-2 rounded-lg bg-[color-mix(in_oklab,var(--destructive)_9%,var(--card))] px-3 py-2.5 text-[13px] text-foreground">
                    <Icon name="alert-circle" size={16} className="mt-0.5 shrink-0 text-destructive" />
                    {errors.form}
                  </p>
                )}
                <Button type="submit" size="lg" disabled={busy} icon={busy ? undefined : 'arrow-right'} className="w-full">
                  {busy && <Icon name="loader" size={17} className="animate-kit-spin motion-reduce:animate-none" />}
                  {busy ? t.finding : t.find}
                </Button>
              </form>
            </div>
          )}
        </div>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* parcels                                                             */
/* ------------------------------------------------------------------ */

function Parcels(props: OrderTrackingProps & { t: Texts }) {
  const { t } = props;
  const order = props.order;
  const [active, setActive] = useState(0);
  const tabs = useRef<(HTMLButtonElement | null)[]>([]);
  const base = useId();
  if (!order) return null;
  const parcels = order.parcels;
  const p = parcels[Math.min(active, parcels.length - 1)];
  const onKey = (e: React.KeyboardEvent, i: number) => {
    const n = parcels.length;
    const go = e.key === 'ArrowRight' ? (i + 1) % n : e.key === 'ArrowLeft' ? (i - 1 + n) % n : e.key === 'Home' ? 0 : e.key === 'End' ? n - 1 : -1;
    if (go < 0) return;
    e.preventDefault();
    setActive(go);
    tabs.current[go]?.focus();
  };
  return (
    <section className={cn('py-12 sm:py-16 lg:py-20', props.className)}>
      <ShopMotion />
      <div className="kit-container">
        <div className="mx-auto max-w-[60rem]">
          <div className="flex flex-wrap items-end justify-between gap-3">
            <div>
              <p className="text-[13px] text-muted-foreground">
                {t.order} <span className="font-medium tabular-nums text-foreground">{order.number}</span>
              </p>
              <h2 className="mt-1 text-h3 font-semibold text-foreground">{fill(t.parcelsOf, { n: parcels.length })}</h2>
            </div>
          </div>
          <div role="tablist" aria-label={fill(t.parcelsOf, { n: parcels.length })} className="mt-6 grid grid-cols-1 gap-2 sm:grid-cols-3 sm:gap-3">
            {parcels.map((x, i) => {
              const on = i === active;
              const pct = (idx(x.stage) / (STAGES.length - 1)) * 100;
              return (
                <button
                  key={x.id}
                  ref={(el) => { tabs.current[i] = el; }}
                  role="tab"
                  id={`${base}-t${i}`}
                  aria-selected={on}
                  aria-controls={`${base}-p`}
                  tabIndex={on ? 0 : -1}
                  onClick={() => setActive(i)}
                  onKeyDown={(e) => onKey(e, i)}
                  className={cn('group/tab rounded-xl border p-4 text-left transition-[border-color,background-color,box-shadow] duration-300', on ? 'border-primary bg-[color-mix(in_oklab,var(--primary)_6%,var(--card))] shadow-[var(--shadow-sm)]' : 'border-border bg-card hover:border-border-strong')}
                >
                  <span className="flex items-center justify-between gap-3">
                    <span className="text-[14px] font-semibold text-foreground">{x.label ?? `${t.parcel} ${i + 1}`}</span>
                    <span className={cn('inline-flex items-center gap-1 text-[12px] font-medium', x.stage === 'delivered' ? 'text-success-foreground' : 'text-muted-foreground')}>
                      <Icon name={x.stage === 'delivered' ? 'check-circle' : STAGE_ICON[x.stage]} size={13} />
                      {t[x.stage]}
                    </span>
                  </span>
                  <span className="mt-3 block h-1 overflow-hidden rounded-full bg-track" aria-hidden>
                    <span className={cn('block h-full rounded-full transition-[width] duration-700 ease-[var(--ease-kit)]', x.stage === 'delivered' ? 'bg-success' : 'bg-primary')} style={{ width: `${Math.max(6, pct)}%` }} />
                  </span>
                  {x.items?.length ? (
                    <span className="mt-3 flex -space-x-2" aria-hidden>
                      {x.items.slice(0, 4).map((it, k) => (
                        <ProductMedia key={k} className="size-8 rounded-full ring-2 ring-card">
                          {it.image}
                        </ProductMedia>
                      ))}
                    </span>
                  ) : null}
                </button>
              );
            })}
          </div>
          <div key={p.id} id={`${base}-p`} role="tabpanel" aria-labelledby={`${base}-t${active}`} tabIndex={0} className="mt-6 animate-[kitshop-fade_0.35s_var(--ease-kit)] rounded-2xl border border-border bg-card shadow-[var(--highlight),var(--shadow-md)]">
            <div className="grid grid-cols-1 gap-6 p-5 sm:p-7 md:grid-cols-[minmax(0,1fr)_auto] md:items-start">
              <Eta parcel={p} t={t} size="md" />
              <p className="flex flex-wrap items-center gap-2 text-[13px] text-muted-foreground">
                {t.tracking} <CopyNumber value={p.trackingNumber} t={t} />
              </p>
            </div>
            <div className="border-t border-border px-5 py-6 sm:px-7">
              <Stages stage={p.stage} t={t} />
            </div>
            <div className="grid grid-cols-1 gap-8 border-t border-border p-5 sm:p-7 lg:grid-cols-[minmax(0,1fr)_17rem]">
              <div>
                <h3 className="mb-4 text-[15px] font-semibold text-foreground">{t.history}</h3>
                <Events events={p.events} t={t} initial={3} />
              </div>
              {p.items?.length ? (
                <div className="lg:border-l lg:border-border lg:pl-8">
                  <h3 className="mb-4 text-[15px] font-semibold text-foreground">{t.inside}</h3>
                  <ul className="space-y-3">
                    {p.items.map((it, k) => (
                      <li key={k} className="flex items-center gap-3">
                        <ProductMedia className="size-14 shrink-0 rounded-lg">{it.image}</ProductMedia>
                        <div className="min-w-0">
                          <p className="truncate text-[14px] font-medium text-foreground">{it.name}</p>
                          <p className="text-[12px] text-muted-foreground">
                            {it.variant}
                            {it.quantity && it.quantity > 1 ? ` · ${it.quantity}×` : ''}
                          </p>
                        </div>
                      </li>
                    ))}
                  </ul>
                </div>
              ) : null}
            </div>
          </div>
        </div>
      </div>
    </section>
  );
}

/**
 * Order tracking after the purchase: a timeline with every scan, a drawn
 * map with the van on its way, a lookup for guests and an order split into
 * parcels. Five stages from ordered to delivered.
 */
export function OrderTracking(props: OrderTrackingProps) {
  const t = useTexts(TEXTS, props.labels);
  const { variant = 'timeline' } = props;
  if (variant === 'map') return <MapVariant {...props} t={t} />;
  if (variant === 'lookup') return <Lookup {...props} t={t} />;
  if (variant === 'parcels') return <Parcels {...props} t={t} />;
  return <Timeline {...props} t={t} />;
}