06Pricing testimonials — a review group that works out its own average rating

<main class="stage">
<section class="panel">
  <p class="hint">It recalculates the star-rating average and card height to fit the review content.</p>
  <p class="avgLine"><span class="avgNum" id="avgNum">0.0</span><span class="avgUnit"> / 5 · <span id="avgCount">0</span>people</span></p>
  <div class="cards" id="cards">
    <article class="card" id="card0">
      <p class="quote" id="quote0"></p>
      <p class="who" id="who0"></p>
    </article>
    <article class="card" id="card1">
      <p class="quote" id="quote1"></p>
      <p class="who" id="who1"></p>
    </article>
    <article class="card" id="card2">
      <p class="quote" id="quote2"></p>
      <p class="who" id="who2"></p>
    </article>
  </div>
  <p class="chip" id="heightChip">Card height 0px</p>
</section>
</main>

@use "../../../../site/static/demo-tokens" as *;

$duration: $dur-quick;
$easing: $ease-out;
$color: $subject-blue-deep;

@include stage($stage-yellow);

.panel {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: $sp-2;
}

.hint {
  margin: 0;
  padding: 0 $sp-2;
  text-align: center;
  font-weight: 400;
  font-size: 11px;
  line-height: 1.4;
  color: rgba($subject-ink, .72);
}

.avgLine {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: $sp-1;
}

.avgNum {
  font-weight: 700;
  font-size: 26px;
  color: $subject-ink;
}

.avgUnit {
  font-weight: 400;
  font-size: 11px;
  color: rgba($subject-ink, .70);
}

.cards {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: $sp-2;
}

.card {
  border-radius: $r-card;
  background: rgba($subject-ink, .05);
  padding: $sp-2;
  display: flex;
  flex-direction: column;
  gap: $sp-1;
  transition: min-height $duration $easing;
}

.quote {
  margin: 0;
  font-weight: 500;
  font-size: 10px;
  line-height: 1.4;
  color: $subject-ink;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.who {
  margin: 0;
  font-weight: 400;
  font-size: 9px;
  color: rgba($subject-ink, .60);
}

.chip {
  margin: 0;
  padding: $sp-1 $sp-3;
  border-radius: $r-pill;
  background: $color;
  color: $subject-cream;
  font-weight: 700;
  font-size: 11px;
}

@media (max-width: 340px) {
  .panel { max-width: 300px; gap: $sp-1; }
  .hint { font-size: 9px; }
  .cards { gap: $sp-1; }
  .card { padding: $sp-1; }
  .quote { font-size: 8px; -webkit-line-clamp: 2; }
  .who { font-size: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.panel {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hint {
  margin: 0;
  padding: 0 8px;
  text-align: center;
  font-weight: 400;
  font-size: 11px;
  line-height: 1.4;
  color: rgba(23, 20, 26, 0.72);
}

.avgLine {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.avgNum {
  font-weight: 700;
  font-size: 26px;
  color: #17141a;
}

.avgUnit {
  font-weight: 400;
  font-size: 11px;
  color: rgba(23, 20, 26, 0.7);
}

.cards {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.card {
  border-radius: 16px;
  background: rgba(23, 20, 26, 0.05);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: min-height 220ms ease-out;
}

.quote {
  margin: 0;
  font-weight: 500;
  font-size: 10px;
  line-height: 1.4;
  color: #17141a;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.who {
  margin: 0;
  font-weight: 400;
  font-size: 9px;
  color: rgba(23, 20, 26, 0.6);
}

.chip {
  margin: 0;
  padding: 4px 12px;
  border-radius: 999px;
  background: #0a4fe8;
  color: #fff7e6;
  font-weight: 700;
  font-size: 11px;
}

@media (max-width: 340px) {
  .panel {
    max-width: 300px;
    gap: 4px;
  }
  .hint {
    font-size: 9px;
  }
  .cards {
    gap: 4px;
  }
  .card {
    padding: 4px;
  }
  .quote {
    font-size: 8px;
    -webkit-line-clamp: 2;
  }
  .who {
    font-size: 8px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .card {
    transition: none;
  }
}

// 고객 리뷰(06) — 후기 3개의 별점 평균을 매번 새로 구하고, 각 카드의 실제 콘텐츠 높이(scrollHeight)를
// 다시 재 가장 큰 값으로 세 카드의 높이를 맞춘다(계산 한 겹). 자동 시연은 후기 길이가 다른 세트를 돌린다.
(function () {
  var avgNum = document.getElementById('avgNum');
  var avgCount = document.getElementById('avgCount');
  var cards = [document.getElementById('card0'), document.getElementById('card1'), document.getElementById('card2')];
  var quotes = [document.getElementById('quote0'), document.getElementById('quote1'), document.getElementById('quote2')];
  var whos = [document.getElementById('who0'), document.getElementById('who1'), document.getElementById('who2')];
  var chip = document.getElementById('heightChip');
  if (!avgNum || !avgCount || !chip || cards.indexOf(null) !== -1 || quotes.indexOf(null) !== -1 || whos.indexOf(null) !== -1) return;
  var reduce = window.matchMedia('(prefers-reduced-motion: reduce)').matches;

  var SETS = [
    {
      count: 128,
      reviews: [
        { text: 'The pricing is clear, and I like that.', who: 'Ribbon Studio · Jisu', rating: 5 },
        { text: 'Switching was easy and the guidance was friendly.', who: 'Bloomworks · Minho', rating: 4 },
        { text: 'Managing got easier after we moved to the team plan.', who: 'NoteGreen · Daeun', rating: 5 }
      ]
    },
    {
      count: 96,
      reviews: [
        { text: 'Great value for the features you get. The annual billing perk is especially big.', who: 'Parang Shop · Sehun', rating: 4 },
        { text: 'The support team responded quickly.', who: 'Handeul Company · Yuna', rating: 5 },
        { text: 'It was great being able to try it thoroughly during the free trial before deciding.', who: 'Dasol Works · Jaehyun', rating: 4 }
      ]
    },
    {
      count: 210,
      reviews: [
        { text: 'The comparison table made it easy to pick a plan.', who: 'Yeondu House · Haeun', rating: 5 },
        { text: 'Having many payment options made things convenient.', who: 'Gaon Square · Doyun', rating: 5 },
        { text: 'The annual savings were big, so I switched right away. Very satisfied.', who: 'Byeolbit Lab · Seoa', rating: 4 }
      ]
    }
  ];

  function average(reviews) {
    var sum = reviews.reduce(function (acc, r) { return acc + r.rating; }, 0);
    return sum / reviews.length;
  }

  function apply(set) {
    avgNum.textContent = average(set.reviews).toFixed(1);
    avgCount.textContent = String(set.count);
    set.reviews.forEach(function (r, i) {
      quotes[i].textContent = '“' + r.text + '”';
      whos[i].textContent = r.who + ' · ' + r.rating + '★';
    });
    requestAnimationFrame(function () {
      var maxH = 0;
      cards.forEach(function (card) { maxH = Math.max(maxH, card.scrollHeight); });
      cards.forEach(function (card) { card.style.minHeight = maxH + 'px'; });
      chip.textContent = 'Card height ' + maxH + 'px';
    });
  }

  apply(SETS[0]);

  if (!reduce) {
    var idx = 0;
    setInterval(function () {
      idx = (idx + 1) % SETS.length;
      apply(SETS[idx]);
    }, 900);
  }
})();

// PricingTestimonial — vanilla 판(run/339/demo/06-pricing-testimonial/index.html) 의 React 포트.
// 후기 3개의 별점 평균을 매번 새로 구하고, 각 카드의 실제 콘텐츠 높이(scrollHeight)를 다시 재
// 가장 큰 값으로 세 카드의 높이를 맞춘다(계산 한 겹).
import { useEffect, useRef } from "react";
import styles from "./PricingTestimonial.module.scss";

export type PricingTestimonialProps = {
  duration?: string;
  easing?: string;
  color?: string;
};

const HINT = "별점 평균과 카드 높이를 후기 내용에 맞춰 다시 계산합니다";

type Review = { text: string; who: string; rating: number };
type ReviewSet = { count: number; reviews: Review[] };

const SETS: ReviewSet[] = [
  {
    count: 128,
    reviews: [
      { text: "요금이 명확해서 좋아요.", who: "리본 스튜디오 · 지수", rating: 5 },
      { text: "전환이 쉬웠고 안내가 친절했습니다.", who: "블룸웍스 · 민호", rating: 4 },
      { text: "팀 플랜으로 옮긴 뒤 관리가 편해졌어요.", who: "노트그린 · 다은", rating: 5 }
    ]
  },
  {
    count: 96,
    reviews: [
      { text: "가격 대비 기능이 많아 만족합니다. 특히 연간 결제 혜택이 커요.", who: "파랑상점 · 세훈", rating: 4 },
      { text: "지원팀 응답이 빨랐어요.", who: "한들컴퍼니 · 유나", rating: 5 },
      { text: "무료 체험 기간 동안 충분히 써보고 결정할 수 있어서 좋았습니다.", who: "다솔웍스 · 재현", rating: 4 }
    ]
  },
  {
    count: 210,
    reviews: [
      { text: "비교표가 있어서 플랜 고르기가 쉬웠어요.", who: "연두하우스 · 하은", rating: 5 },
      { text: "결제 수단이 다양해서 편했습니다.", who: "가온스퀘어 · 도윤", rating: 5 },
      { text: "연간 절약액이 커서 바로 전환했어요. 만족스럽습니다.", who: "별빛랩 · 서아", rating: 4 }
    ]
  }
];

function average(reviews: Review[]): number {
  const sum = reviews.reduce((acc, r) => acc + r.rating, 0);
  return sum / reviews.length;
}

export default function PricingTestimonial({
  duration = "220ms",
  easing = "ease-out",
  color = "#0a4fe8"
}: PricingTestimonialProps) {
  const avgNumRef = useRef<HTMLSpanElement | null>(null);
  const avgCountRef = useRef<HTMLSpanElement | null>(null);
  const cardRefs = useRef<(HTMLElement | null)[]>([]);
  const quoteRefs = useRef<(HTMLParagraphElement | null)[]>([]);
  const whoRefs = useRef<(HTMLParagraphElement | null)[]>([]);
  const chipRef = useRef<HTMLParagraphElement | null>(null);

  useEffect(() => {
    const avgNum = avgNumRef.current;
    const avgCount = avgCountRef.current;
    const chip = chipRef.current;
    if (!avgNum || !avgCount || !chip) return;
    const reduce = window.matchMedia("(prefers-reduced-motion: reduce)").matches;

    function apply(set: ReviewSet): void {
      avgNum!.textContent = average(set.reviews).toFixed(1);
      avgCount!.textContent = String(set.count);
      set.reviews.forEach((r, i) => {
        const quote = quoteRefs.current![i];
        const who = whoRefs.current![i];
        if (quote) quote.textContent = "“" + r.text + "”";
        if (who) who.textContent = r.who + " · " + r.rating + "★";
      });
      requestAnimationFrame(() => {
        let maxH = 0;
        cardRefs.current!.forEach((card) => {
          if (card) maxH = Math.max(maxH, card.scrollHeight);
        });
        cardRefs.current!.forEach((card) => {
          if (card) card.style.minHeight = maxH + "px";
        });
        chip!.textContent = "카드 높이 " + maxH + "px";
      });
    }

    apply(SETS[0]);

    let timer = 0;
    if (!reduce) {
      let idx = 0;
      timer = window.setInterval(() => {
        idx = (idx + 1) % SETS.length;
        apply(SETS[idx]);
      }, 900);
    }

    return () => {
      if (timer) window.clearInterval(timer);
    };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);

  return (
    <main className={styles.stage}>
      <section className={styles.panel}>
        <p className={styles.hint}>{HINT}</p>
        <p className={styles.avgLine}>
          <span className={styles.avgNum} ref={avgNumRef}>
            0.0
          </span>
          <span className={styles.avgUnit}>
            {" "}
            / 5 · <span ref={avgCountRef}>0</span>명
          </span>
        </p>
        <div className={styles.cards}>
          {[0, 1, 2].map((i) => (
            <article
              key={i}
              className={styles.card}
              ref={(el: HTMLElement | null) => {
                cardRefs.current![i] = el;
              }}
            >
              <p
                className={styles.quote}
                ref={(el: HTMLParagraphElement | null) => {
                  quoteRefs.current![i] = el;
                }}
              />
              <p
                className={styles.who}
                ref={(el: HTMLParagraphElement | null) => {
                  whoRefs.current![i] = el;
                }}
              />
            </article>
          ))}
        </div>
        <p className={styles.chip} ref={chipRef}>
          카드 높이 0px
        </p>
      </section>
    </main>
  );
}