Review

'use client';

import { useEffect, useMemo, useRef, useState } from 'react';
import { cn, round, useLocale, useTexts } from '@/lib/kit';
import { Button } from '@/components/ui/button';
import { Icon } from '@/components/ui/icon';
import { Magnetic, Parallax, Stagger } from '@/components/ui/motion';
import { Reveal } from '@/components/ui/reveal';
import { Slider } from '@/components/ui/slider';
import { Eyebrow } from '@/components/ui/section';

/*
 * Reviews and tests, written so a reader can decide. Scores are numbers,
 * so every variant can draw, weigh and compare them.
 *
 *   verdict   the result first: score ring, the verdict in one sentence,
 *             pros and cons, who should buy it and who should not
 *   scores    the score by criterion; readers move the weights to their own
 *             priorities and the total follows
 *   specs     the data sheet, promised against measured, deviations marked
 *   roundup   the winners of a comparison test, each with its award
 *   test-log  the long test as a diary, the score changing over the months
 */

export type ReviewArticleVariant = 'verdict' | 'scores' | 'specs' | 'roundup' | 'test-log';

export interface ReviewProduct {
  name: string;
  media?: React.ReactNode;
  /** Total score */
  score?: number;
  /** As shown, e.g. €3,490 */
  price?: string;
  href?: string;
  /** roundup: e.g. Best overall */
  award?: string;
  /** roundup: one sentence why */
  reason?: string;
  /** roundup: two or three facts */
  facts?: string[];
}

export interface ReviewCriterion {
  label: string;
  score: number;
  /** Weight in percent, the weights add up to 100 */
  weight: number;
  note?: string;
}

export interface ReviewSpec {
  group?: string;
  label: string;
  /** What the maker says */
  claimed?: string;
  /** What we measured */
  measured: string;
  /** Mark the measured value: better, worse or same */
  verdict?: 'better' | 'worse' | 'same';
}

export interface ReviewLogEntry {
  /** e.g. Week 1 */
  when: string;
  title: string;
  text: string;
  score?: number;
  /** km, hours, uses, as shown */
  mileage?: string;
}

export interface ReviewArticleProps {
  variant?: ReviewArticleVariant;
  eyebrow?: React.ReactNode;
  title?: React.ReactNode;
  description?: React.ReactNode;
  product?: ReviewProduct;
  /** roundup */
  products?: ReviewProduct[];
  /** verdict: the sentence */
  verdict?: string;
  pros?: string[];
  cons?: string[];
  /** verdict: who it is for and who should skip */
  goodFor?: string;
  skipIf?: string;
  criteria?: ReviewCriterion[];
  specs?: ReviewSpec[];
  log?: ReviewLogEntry[];
  /** Highest possible score, default 10 */
  scale?: number;
  /** Main action, e.g. to the shop */
  action?: { label: string; href: string };
  labels?: Partial<Texts>;
  className?: string;
}

const TEXTS = {
  en: {
    score: 'Score',
    of: 'out of {m}',
    pros: 'What we liked',
    cons: 'What could be better',
    goodFor: 'Buy it if',
    skipIf: 'Skip it if',
    verdict: 'Our verdict',
    criteria: 'Criteria',
    weight: 'Weight',
    yourScore: 'Your score',
    ourScore: 'Our weighting',
    reset: 'Back to our weighting',
    claimed: 'Maker says',
    measured: 'We measured',
    better: 'better than promised',
    worse: 'below the promise',
    same: 'as promised',
    onlyDiff: 'Only deviations',
    all: 'All values',
    log: 'Test diary',
    since: 'since the start',
  },
  de: {
    score: 'Wertung',
    of: 'von {m}',
    pros: 'Was uns gefallen hat',
    cons: 'Was besser sein könnte',
    goodFor: 'Kauf es, wenn',
    skipIf: 'Lass es, wenn',
    verdict: 'Unser Urteil',
    criteria: 'Kriterien',
    weight: 'Gewicht',
    yourScore: 'Deine Wertung',
    ourScore: 'Unsere Gewichtung',
    reset: 'Zurück zu unserer Gewichtung',
    claimed: 'Laut Hersteller',
    measured: 'Gemessen',
    better: 'besser als versprochen',
    worse: 'unter dem Versprechen',
    same: 'wie versprochen',
    onlyDiff: 'Nur Abweichungen',
    all: 'Alle Werte',
    log: 'Testtagebuch',
    since: 'seit Beginn',
  },
};

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

/* ------------------------------------------------------------------ */
/* Shared pieces                                                       */
/* ------------------------------------------------------------------ */

function useScore() {
  const locale = useLocale();
  const nf = new Intl.NumberFormat(locale === 'de' ? 'de-DE' : 'en-US', { minimumFractionDigits: 1, maximumFractionDigits: 1 });
  return (n: number) => nf.format(n);
}

/** A ring that fills to the score once it scrolls into view */
function ScoreRing({ score, scale, size = 120, label }: { score: number; scale: number; size?: number; label: string }) {
  const fmt = useScore();
  const ref = useRef<HTMLDivElement>(null);
  const [on, setOn] = useState(true);
  useEffect(() => {
    const el = ref.current;
    if (!el || window.matchMedia('(prefers-reduced-motion: reduce)').matches) return;
    setOn(false);
    const io = new IntersectionObserver(([e]) => {
      if (e.isIntersecting) {
        setOn(true);
        io.disconnect();
      }
    }, { threshold: 0.4 });
    io.observe(el);
    return () => io.disconnect();
  }, []);
  const R = 44;
  const C = 2 * Math.PI * R;
  return (
    <div ref={ref} className="relative grid shrink-0 place-items-center" style={{ width: size, height: size }} role="img" aria-label={label}>
      <svg viewBox="0 0 100 100" className="absolute inset-0 size-full -rotate-90" aria-hidden>
        <circle cx="50" cy="50" r={R} fill="none" stroke="var(--border)" strokeWidth="6" />
        <circle cx="50" cy="50" r={R} fill="none" stroke="var(--primary)" strokeWidth="6" strokeLinecap="round" strokeDasharray={round(C)} strokeDashoffset={round(C * (1 - (on ? score / scale : 0)))} className="transition-[stroke-dashoffset] duration-[1400ms] ease-[var(--ease-kit)] motion-reduce:transition-none" />
      </svg>
      <span className="text-center leading-none" aria-hidden>
        <span className="block font-semibold tabular-nums tracking-[-0.03em] text-foreground" style={{ fontSize: round(size * 0.3) }}>
          {fmt(score)}
        </span>
        <span className="mt-1 block text-[12px] text-muted-foreground">/ {scale}</span>
      </span>
    </div>
  );
}

function Picture({ media, aspect = '4 / 3', className, parallax }: { media?: React.ReactNode; aspect?: string; className?: string; parallax?: boolean }) {
  if (!media) return null;
  return (
    <div data-clip-ok className={cn('relative overflow-hidden rounded-2xl bg-muted', className)} style={{ aspectRatio: aspect }}>
      {parallax ? (
        <Parallax speed={36} className="size-full scale-[1.1] [&>*]:size-full">
          {media}
        </Parallax>
      ) : (
        <div className="size-full [&>*]:size-full">{media}</div>
      )}
    </div>
  );
}

function Head({ eyebrow, title, description, aside }: { eyebrow?: React.ReactNode; title?: React.ReactNode; description?: React.ReactNode; aside?: React.ReactNode }) {
  if (!title && !eyebrow) return null;
  return (
    <div className="mb-10 flex flex-col gap-6 sm:mb-12 lg:flex-row lg:items-end lg:justify-between">
      <div className="max-w-[42rem]">
        {eyebrow && <Eyebrow className="kit-rise">{eyebrow}</Eyebrow>}
        {title && <h2 className="kit-rise text-balance text-h2 font-semibold text-foreground" style={{ '--kit-delay': '60ms' } as React.CSSProperties}>{title}</h2>}
        {description && <p className="kit-rise mt-4 text-pretty text-lead text-muted-foreground" style={{ '--kit-delay': '120ms' } as React.CSSProperties}>{description}</p>}
      </div>
      {aside}
    </div>
  );
}

/* ------------------------------------------------------------------ */
/* verdict                                                             */
/* ------------------------------------------------------------------ */

function Verdict(p: ReviewArticleProps & { t: Texts }) {
  const { t } = p;
  const scale = p.scale ?? 10;
  const fmt = useScore();
  const pr = p.product;
  return (
    <section className={cn('py-16 sm:py-20 lg:py-24', p.className)}>
      <div className="kit-container">
        <Head eyebrow={p.eyebrow} title={p.title} description={p.description} />
        <Reveal effect="rise" className="kit-card overflow-hidden">
          <div className="grid grid-cols-[minmax(0,1fr)] lg:grid-cols-[minmax(0,1fr)_minmax(0,1.15fr)]">
            <div className="relative border-b border-border lg:border-b-0 lg:border-r">
              <div data-clip-ok className="relative aspect-[4/3] overflow-hidden bg-muted lg:aspect-auto lg:h-full">
                <Parallax speed={36} className="absolute inset-0 scale-[1.1] [&>*]:size-full">
                  {pr?.media}
                </Parallax>
              </div>
            </div>
            <div className="flex flex-col p-6 sm:p-8">
              <div className="flex items-start gap-5 sm:gap-6">
                {pr?.score !== undefined && <ScoreRing score={pr.score} scale={scale} size={112} label={`${t.score} ${fmt(pr.score)} ${t.of.replace('{m}', String(scale))}`} />}
                <div className="min-w-0">
                  <p className="text-[13px] font-semibold uppercase tracking-[0.08em] text-[color-mix(in_oklab,var(--primary)_80%,var(--foreground))]">{t.verdict}</p>
                  <h3 className="mt-1.5 text-balance text-[22px] font-semibold leading-[1.25] tracking-[-0.012em] text-foreground sm:text-[24px]">{pr?.name}</h3>
                  {pr?.price && <p className="mt-1 text-[15px] tabular-nums text-muted-foreground">{pr.price}</p>}
                </div>
              </div>
              {p.verdict && <p className="mt-6 text-pretty text-[18px] font-medium leading-[1.55] text-foreground sm:text-[19px]">{p.verdict}</p>}
              <div className="mt-6 grid grid-cols-[minmax(0,1fr)] gap-6 sm:grid-cols-2">
                {[
                  { list: p.pros ?? [], head: t.pros, icon: 'plus' as const, tone: 'text-success-foreground bg-[color-mix(in_oklab,var(--success)_14%,transparent)]' },
                  { list: p.cons ?? [], head: t.cons, icon: 'minus' as const, tone: 'text-destructive bg-[color-mix(in_oklab,var(--destructive)_12%,transparent)]' },
                ].map((b) => (
                  <div key={b.head}>
                    <p className="text-[13.5px] font-semibold text-foreground">{b.head}</p>
                    <Stagger as="ul" step={70} className="mt-3 space-y-2.5">
                      {b.list.map((x, i) => (
                        <li key={i} className="flex gap-2.5 text-[14.5px] leading-[1.5] text-foreground">
                          <span className={cn('mt-px grid size-5 shrink-0 place-items-center rounded-full', b.tone)} aria-hidden>
                            <Icon name={b.icon} size={12} strokeWidth={2.4} />
                          </span>
                          <span className="text-pretty">{x}</span>
                        </li>
                      ))}
                    </Stagger>
                  </div>
                ))}
              </div>
              {(p.goodFor || p.skipIf || p.action) && (
                <div className="mt-auto pt-7">
                  <dl className="grid grid-cols-[minmax(0,1fr)] gap-px overflow-hidden rounded-xl border border-border bg-border sm:grid-cols-2">
                    {p.goodFor && (
                      <div className="bg-surface p-4">
                        <dt className="text-[12.5px] font-semibold text-foreground">{t.goodFor}</dt>
                        <dd className="mt-1 text-pretty text-[14px] leading-[1.5] text-muted-foreground">{p.goodFor}</dd>
                      </div>
                    )}
                    {p.skipIf && (
                      <div className="bg-surface p-4">
                        <dt className="text-[12.5px] font-semibold text-foreground">{t.skipIf}</dt>
                        <dd className="mt-1 text-pretty text-[14px] leading-[1.5] text-muted-foreground">{p.skipIf}</dd>
                      </div>
                    )}
                  </dl>
                  {p.action && (
                    <Magnetic className="mt-5 flex w-full sm:inline-flex sm:w-auto">
                      <Button href={p.action.href} icon="arrow-up-right" className="w-full sm:w-auto">
                        {p.action.label}
                      </Button>
                    </Magnetic>
                  )}
                </div>
              )}
            </div>
          </div>
        </Reveal>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* scores                                                              */
/* ------------------------------------------------------------------ */

function Scores(p: ReviewArticleProps & { t: Texts }) {
  const { t } = p;
  const locale = useLocale();
  const scale = p.scale ?? 10;
  const fmt = useScore();
  const criteria = p.criteria ?? [];
  const base = useMemo(() => criteria.map((c) => c.weight), [criteria]);
  const [w, setW] = useState<number[]>(base);
  useEffect(() => setW(base), [base]);
  const sum = w.reduce((a, b) => a + b, 0) || 1;
  const total = criteria.reduce((a, c, i) => a + c.score * (w[i] ?? 0), 0) / sum;
  const ours = criteria.reduce((a, c, i) => a + c.score * base[i], 0) / (base.reduce((a, b) => a + b, 0) || 1);
  const changed = w.some((x, i) => x !== base[i]);
  const [ref, inView] = useSeen<HTMLUListElement>();
  return (
    <section className={cn('py-16 sm:py-20 lg:py-24', p.className)}>
      <div className="kit-container">
        <Head eyebrow={p.eyebrow} title={p.title} description={p.description} />
        <div className="grid grid-cols-[minmax(0,1fr)] gap-10 lg:grid-cols-[minmax(0,1fr)_minmax(0,20rem)] lg:gap-14">
          <ul ref={ref} className="divide-y divide-border border-y border-border">
            {criteria.map((c, i) => (
              <li key={c.label} className="py-5">
                <div className="flex items-center justify-between gap-4">
                  <h3 className="min-w-0 text-[16.5px] font-semibold text-foreground">{c.label}</h3>
                  <span className="flex shrink-0 items-center gap-3">
                    <span className="h-2.5 w-24 overflow-hidden rounded-full bg-track sm:w-40" aria-hidden>
                      <span className="block h-full origin-left rounded-full bg-[color-mix(in_oklab,var(--foreground)_80%,var(--background))] transition-transform duration-1000 ease-[var(--ease-kit)] motion-reduce:transition-none" style={{ transform: `scaleX(${inView ? round(c.score / scale, 3) : 0})`, transitionDelay: `${i * 80}ms` }} />
                    </span>
                    <span className="w-9 text-right text-[18px] font-semibold tabular-nums text-foreground">{fmt(c.score)}</span>
                  </span>
                </div>
                {c.note && <p className="mt-2.5 text-pretty text-[14.5px] leading-[1.55] text-muted-foreground">{c.note}</p>}
                <Slider
                  className="mt-3"
                  label={t.weight}
                  min={0}
                  max={50}
                  step={5}
                  value={w[i] ?? 0}
                  onValueChange={(v: number) => setW((ws) => ws.map((x, k) => (k === i ? v : x)))}
                  format={() => `${round(((w[i] ?? 0) / sum) * 100, 0)}${locale === 'de' ? ' %' : '%'}`}
                />
              </li>
            ))}
          </ul>
          {/* Phones and tablets: the total rides along at the bottom while the weights move */}
          <div className="sticky bottom-3 z-10 flex items-center gap-4 rounded-2xl border border-border bg-[color-mix(in_oklab,var(--card)_92%,transparent)] p-3 pr-4 shadow-[var(--highlight),var(--shadow-lg)] backdrop-blur-md lg:hidden">
            <ScoreRing score={round(total, 1)} scale={scale} size={64} label={`${t.score} ${fmt(total)} ${t.of.replace('{m}', String(scale))}`} />
            <p className="min-w-0 flex-1 text-[14px] leading-snug">
              <span className="block font-semibold text-foreground">{changed ? t.yourScore : t.ourScore}</span>
              {changed && (
                <span className="text-muted-foreground">
                  {t.ourScore} <span className="tabular-nums">{fmt(ours)}</span>
                </span>
              )}
            </p>
            {changed && (
              <button type="button" onClick={() => setW(base)} aria-label={t.reset} className="grid size-11 shrink-0 place-items-center rounded-lg border border-border text-foreground transition-colors hover:bg-accent">
                <Icon name="rotate-ccw" size={16} />
              </button>
            )}
          </div>
          <div className="hidden lg:sticky lg:top-10 lg:block lg:self-start">
            <div className="kit-card flex flex-col items-center p-6 text-center sm:p-8">
              <p className="text-[13px] font-semibold text-muted-foreground">{changed ? t.yourScore : t.ourScore}</p>
              <div className="mt-4">
                <ScoreRing score={round(total, 1)} scale={scale} size={150} label={`${t.score} ${fmt(total)} ${t.of.replace('{m}', String(scale))}`} />
              </div>
              <p className="mt-4 text-[14px] text-muted-foreground" aria-live="polite">
                {changed ? (
                  <>
                    {t.ourScore} <span className="font-semibold tabular-nums text-foreground">{fmt(ours)}</span>
                  </>
                ) : (
                  p.product?.name
                )}
              </p>
              <button type="button" onClick={() => setW(base)} disabled={!changed} className="mt-4 inline-flex min-h-11 items-center gap-2 rounded-lg px-3 text-[14px] font-medium text-foreground transition-[background-color,opacity] hover:bg-accent disabled:pointer-events-none disabled:opacity-0">
                <Icon name="rotate-ccw" size={15} />
                {t.reset}
              </button>
            </div>
          </div>
        </div>
      </div>
    </section>
  );
}

function useSeen<T extends Element>() {
  const ref = useRef<T>(null);
  const [v, setV] = useState(true);
  useEffect(() => {
    const el = ref.current;
    if (!el || window.matchMedia('(prefers-reduced-motion: reduce)').matches) return;
    if (el.getBoundingClientRect().top < window.innerHeight * 0.85) return;
    setV(false);
    const io = new IntersectionObserver(([e]) => {
      if (e.isIntersecting) {
        setV(true);
        io.disconnect();
      }
    }, { rootMargin: '0px 0px -15% 0px' });
    io.observe(el);
    return () => io.disconnect();
  }, []);
  return [ref, v] as const;
}

/* ------------------------------------------------------------------ */
/* specs                                                               */
/* ------------------------------------------------------------------ */

function Specs(p: ReviewArticleProps & { t: Texts }) {
  const { t } = p;
  const specs = p.specs ?? [];
  const [only, setOnly] = useState(false);
  const groups = useMemo(() => {
    const m = new Map<string, ReviewSpec[]>();
    for (const s of specs) m.set(s.group ?? '', [...(m.get(s.group ?? '') ?? []), s]);
    return [...m.entries()];
  }, [specs]);
  const mark = (v?: ReviewSpec['verdict']) =>
    v === 'better' ? { icon: 'arrow-up' as const, cls: 'text-success-foreground bg-[color-mix(in_oklab,var(--success)_14%,transparent)]', text: t.better } : v === 'worse' ? { icon: 'arrow-down' as const, cls: 'text-destructive bg-[color-mix(in_oklab,var(--destructive)_12%,transparent)]', text: t.worse } : { icon: 'check' as const, cls: 'text-muted-foreground bg-muted', text: t.same };
  return (
    <section className={cn('py-16 sm:py-20 lg:py-24', p.className)}>
      <div className="kit-container">
        <Head
          eyebrow={p.eyebrow}
          title={p.title}
          description={p.description}
          aside={
            <div role="group" className="inline-flex self-start rounded-xl border border-border bg-surface p-1 lg:self-end">
              {[false, true].map((v) => (
                <button key={String(v)} type="button" aria-pressed={only === v} onClick={() => setOnly(v)} className={cn('min-h-10 rounded-lg px-3.5 text-[14px] font-medium transition-[background-color,color] duration-300 max-sm:min-h-11', only === v ? 'bg-card text-foreground shadow-[var(--highlight),var(--shadow-sm)]' : 'text-muted-foreground hover:text-foreground')}>
                  {v ? t.onlyDiff : t.all}
                </button>
              ))}
            </div>
          }
        />
        <div className="overflow-hidden rounded-2xl border border-border">
          <div className="hidden grid-cols-[minmax(0,1.2fr)_minmax(0,1fr)_minmax(0,1fr)] gap-4 border-b border-border bg-surface px-5 py-3 text-[12.5px] font-semibold uppercase tracking-[0.06em] text-muted-foreground sm:grid">
            <span />
            <span>{t.claimed}</span>
            <span>{t.measured}</span>
          </div>
          {groups.map(([g, rows]) => {
            const visible = rows.filter((r) => !only || (r.verdict && r.verdict !== 'same'));
            if (!visible.length) return null;
            return (
              <div key={g}>
                {g && <p className="border-b border-border bg-[color-mix(in_oklab,var(--surface)_50%,var(--background))] px-5 py-2.5 text-[13px] font-semibold text-foreground">{g}</p>}
                <dl>
                  {visible.map((r) => {
                    const m = mark(r.verdict);
                    return (
                      <div key={r.label} className="kit-rise grid grid-cols-2 gap-x-4 gap-y-1.5 border-b border-border px-5 py-4 last:border-b-0 sm:grid-cols-[minmax(0,1.2fr)_minmax(0,1fr)_minmax(0,1fr)] sm:items-center" style={{ animationDuration: '.5s' } as React.CSSProperties}>
                        <dt className="col-span-2 text-[15px] font-medium text-foreground sm:col-span-1">{r.label}</dt>
                        <dd className="flex flex-wrap items-center gap-2 text-[14.5px] tabular-nums text-muted-foreground">
                          <span className="block w-full text-[12px] sm:hidden">{t.claimed}</span>
                          {r.claimed ?? '·'}
                        </dd>
                        <dd className="flex flex-wrap items-center gap-2 text-[14.5px] font-semibold tabular-nums text-foreground">
                          <span className="block w-full text-[12px] font-normal text-muted-foreground sm:hidden">{t.measured}</span>
                          {r.measured}
                          {r.verdict && (
                            <span className={cn('inline-flex h-5 items-center gap-1 rounded-md px-1.5 text-[12px] font-medium', m.cls)}>
                              <Icon name={m.icon} size={12} strokeWidth={2.2} />
                              <span className="sr-only lg:not-sr-only">{m.text}</span>
                            </span>
                          )}
                        </dd>
                      </div>
                    );
                  })}
                </dl>
              </div>
            );
          })}
        </div>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* roundup                                                             */
/* ------------------------------------------------------------------ */

function Roundup(p: ReviewArticleProps & { t: Texts }) {
  const { t } = p;
  const scale = p.scale ?? 10;
  const fmt = useScore();
  const products = p.products ?? [];
  return (
    <section className={cn('py-16 sm:py-20 lg:py-24', p.className)}>
      <div className="kit-container">
        <Head eyebrow={p.eyebrow} title={p.title} description={p.description} />
        <Stagger step={90} className="grid grid-cols-[minmax(0,1fr)] gap-4 md:grid-cols-2 lg:grid-cols-4">
          {products.map((x, i) => (
            <article key={x.name} className={cn('group/p relative flex flex-col overflow-hidden rounded-2xl border bg-card shadow-[var(--highlight),var(--shadow-sm)] transition-[transform,box-shadow,border-color] duration-500 ease-[var(--ease-kit)] hover:-translate-y-1 hover:shadow-[var(--highlight),var(--shadow-md)]', i === 0 ? 'border-[color-mix(in_oklab,var(--primary)_55%,var(--border))]' : 'border-border hover:border-border-strong')}>
              {i === 0 && <span className="kit-beam pointer-events-none absolute inset-0 rounded-[inherit]" aria-hidden />}
              <div className="relative overflow-hidden">
                <div className="transition-transform duration-700 ease-[var(--ease-kit)] group-hover/p:scale-[1.04]">
                  <Picture media={x.media} aspect="4 / 3" className="rounded-none" />
                </div>
                {x.award && (
                  <span className={cn('absolute left-3 top-3 inline-flex items-center gap-1.5 rounded-lg px-2.5 py-1 text-[12.5px] font-semibold shadow-[var(--shadow-md)]', i === 0 ? 'bg-primary text-primary-foreground' : 'bg-[color-mix(in_oklab,var(--background)_88%,transparent)] text-foreground backdrop-blur')}>
                    <Icon name={i === 0 ? 'trophy' : 'award'} size={14} />
                    {x.award}
                  </span>
                )}
              </div>
              <div className="flex flex-1 flex-col p-5">
                <div className="flex items-start justify-between gap-3">
                  <h3 className="text-pretty text-[18px] font-semibold leading-[1.3] text-foreground">{x.name}</h3>
                  {x.score !== undefined && (
                    <span className="shrink-0 rounded-lg bg-muted px-2 py-1 text-[15px] font-semibold tabular-nums text-foreground" aria-label={`${t.score} ${fmt(x.score)} ${t.of.replace('{m}', String(scale))}`}>
                      {fmt(x.score)}
                    </span>
                  )}
                </div>
                {x.reason && <p className="mt-2 text-pretty text-[14.5px] leading-[1.55] text-muted-foreground">{x.reason}</p>}
                {x.facts && (
                  <ul className="mt-4 space-y-1.5 border-t border-border pt-4">
                    {x.facts.map((f) => (
                      <li key={f} className="flex items-center gap-2 text-[13.5px] text-foreground">
                        <Icon name="check" size={14} className="text-[color-mix(in_oklab,var(--primary)_80%,var(--foreground))]" />
                        {f}
                      </li>
                    ))}
                  </ul>
                )}
                <div className="mt-auto flex items-center justify-between gap-3 pt-5">
                  <span className="text-[16px] font-semibold tabular-nums text-foreground">{x.price}</span>
                  <a href={x.href ?? '#'} className="inline-flex min-h-11 items-center gap-1.5 text-[14px] font-medium text-foreground transition-colors hover:text-primary">
                    {p.action?.label}
                    <Icon name="arrow-right" size={15} className="transition-transform duration-300 group-hover/p:translate-x-0.5" />
                  </a>
                </div>
              </div>
            </article>
          ))}
        </Stagger>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */
/* test-log                                                            */
/* ------------------------------------------------------------------ */

function TestLog(p: ReviewArticleProps & { t: Texts }) {
  const { t } = p;
  const scale = p.scale ?? 10;
  const fmt = useScore();
  const log = p.log ?? [];
  const scores = log.map((l) => l.score).filter((x): x is number => x !== undefined);
  const lo = Math.min(...scores, scale) - 0.5;
  const hi = Math.max(...scores, 0) + 0.3;
  const W = 600;
  const H = 120;
  const pts = log.map((l, i) => ({ x: round((i / Math.max(1, log.length - 1)) * W), y: l.score === undefined ? null : round(H - 14 - ((l.score - lo) / Math.max(0.1, hi - lo)) * (H - 28)) }));
  const path = pts.filter((q) => q.y !== null).map((q, i) => `${i ? 'L' : 'M'}${q.x} ${q.y}`).join(' ');
  const [ref, inView] = useSeen<HTMLDivElement>();
  const delta = scores.length > 1 ? scores[scores.length - 1] - scores[0] : 0;
  return (
    <section className={cn('py-16 sm:py-20 lg:py-24', p.className)}>
      <div className="kit-container">
        <div className="mx-auto max-w-[48rem]">
          <Head eyebrow={p.eyebrow} title={p.title} description={p.description} />
          <div ref={ref} className="rounded-2xl border border-border bg-card p-5 shadow-[var(--highlight),var(--shadow-sm)] sm:p-6">
            <div className="flex items-baseline justify-between gap-4">
              <p className="text-[13px] font-semibold text-foreground">{t.log}</p>
              {scores.length > 1 && (
                <p className={cn('text-[13px] font-medium tabular-nums', delta >= 0 ? 'text-success-foreground' : 'text-destructive')}>
                  {delta >= 0 ? '+' : ''}
                  {fmt(delta)} {t.since}
                </p>
              )}
            </div>
            {/* The line is drawn in a stretched SVG, points and labels sit in HTML so they keep their size on every width */}
            <div className="relative mx-3 mt-8 h-28 sm:mx-4">
              <svg viewBox={`0 0 ${W} ${H}`} preserveAspectRatio="none" className="absolute inset-0 size-full overflow-visible transition-[clip-path] duration-[1600ms] ease-[var(--ease-kit)] motion-reduce:transition-none" style={{ clipPath: inView ? 'inset(-10px -10px -10px -10px)' : 'inset(-10px 100% -10px -10px)' }} aria-hidden>
                <path d={path} fill="none" stroke="var(--primary)" strokeWidth="2.5" vectorEffect="non-scaling-stroke" strokeLinecap="round" strokeLinejoin="round" />
              </svg>
              {pts.map((q, i) =>
                q.y === null ? null : (
                  <span key={i} aria-hidden className="absolute flex -translate-x-1/2 -translate-y-1/2 flex-col items-center transition-opacity duration-500" style={{ left: `${round((q.x / W) * 100, 3)}%`, top: `${round((q.y / H) * 100, 3)}%`, opacity: inView ? 1 : 0, transitionDelay: `${300 + i * 200}ms` }}>
                    <span className="absolute bottom-[calc(100%+4px)] text-[13px] font-semibold tabular-nums text-foreground">{fmt(log[i].score!)}</span>
                    <span className="size-3 rounded-full border-[2.5px] border-primary bg-card" />
                  </span>
                ),
              )}
            </div>
            <div className="relative mx-3 mt-3 h-4 text-[12px] text-muted-foreground sm:mx-4" aria-hidden>
              {log.map((l, i) => (
                <span key={l.when} className={cn('absolute whitespace-nowrap', i === 0 ? '' : i === log.length - 1 ? '-translate-x-full' : '-translate-x-1/2')} style={{ left: `${round((pts[i].x / W) * 100, 3)}%` }}>
                  {l.when}
                </span>
              ))}
            </div>
          </div>
          <ol className="relative mt-12 space-y-10 pl-8 sm:pl-10">
            <span aria-hidden className="absolute bottom-2 left-[5px] top-2 w-px bg-border" />
            {log.map((l, i) => (
              <Reveal as="li" key={i} effect="rise" className="relative">
                <span aria-hidden className="absolute -left-8 top-[5px] size-[11px] rounded-full border-2 border-primary bg-background sm:-left-10" />
                <p className="flex flex-wrap items-center gap-x-3 gap-y-1 text-[13.5px] text-muted-foreground">
                  <span className="font-semibold text-foreground">{l.when}</span>
                  {l.mileage && <span className="tabular-nums">{l.mileage}</span>}
                  {l.score !== undefined && <span className="rounded-md bg-muted px-1.5 py-0.5 text-[12.5px] font-semibold tabular-nums text-foreground">{fmt(l.score)}</span>}
                </p>
                <h3 className="mt-2 text-pretty text-[20px] font-semibold leading-[1.3] tracking-[-0.01em] text-foreground">{l.title}</h3>
                <p className="mt-2 text-pretty text-[16px] leading-[1.7] text-muted-foreground">{l.text}</p>
              </Reveal>
            ))}
          </ol>
        </div>
      </div>
    </section>
  );
}

/* ------------------------------------------------------------------ */

export function ReviewArticle(props: ReviewArticleProps) {
  const t = useTexts(TEXTS, props.labels);
  const { variant = 'verdict' } = props;
  if (variant === 'scores') return <Scores {...props} t={t} />;
  if (variant === 'specs') return <Specs {...props} t={t} />;
  if (variant === 'roundup') return <Roundup {...props} t={t} />;
  if (variant === 'test-log') return <TestLog {...props} t={t} />;
  return <Verdict {...props} t={t} />;
}