07Barcode scan coupon

<main class="stage">
<div class="bc is-demo" id="bc">
  <div class="bc__card" id="card">
    <div class="bc__head">
      <p class="bc__title"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" fill="currentColor" class="bc__ico" aria-hidden="true"><path d="M224,48V208H32V48Z" opacity="0.2"/><path d="M232,48V88a8,8,0,0,1-16,0V56H184a8,8,0,0,1,0-16h40A8,8,0,0,1,232,48ZM72,200H40V168a8,8,0,0,0-16,0v40a8,8,0,0,0,8,8H72a8,8,0,0,0,0-16Zm152-40a8,8,0,0,0-8,8v32H184a8,8,0,0,0,0,16h40a8,8,0,0,0,8-8V168A8,8,0,0,0,224,160ZM32,96a8,8,0,0,0,8-8V56H72a8,8,0,0,0,0-16H32a8,8,0,0,0-8,8V88A8,8,0,0,0,32,96ZM80,80a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,80,80Zm104,88V88a8,8,0,0,0-16,0v80a8,8,0,0,0,16,0ZM144,80a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,144,80Zm-32,0a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,112,80Z"/></svg><span>Membership barcode</span></p>
      <span class="bc__state" id="stateTxt">Waiting</span>
    </div>
    <div class="bc__bars" aria-hidden="true">
      <span class="bc__beam"></span>
    </div>
    <p class="bc__digits">8842 0071 3390</p>
    <div class="bc__foot">
      <button type="button" class="bc__btn" id="scanBtn">Scan</button>
      <p class="bc__done" id="done"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" fill="currentColor" class="bc__tick" aria-hidden="true"><path d="M232,56V200a16,16,0,0,1-16,16H40a16,16,0,0,1-16-16V56A16,16,0,0,1,40,40H216A16,16,0,0,1,232,56Z" opacity="0.2"/><path d="M205.66,85.66l-96,96a8,8,0,0,1-11.32,0l-40-40a8,8,0,0,1,11.32-11.32L104,164.69l90.34-90.35a8,8,0,0,1,11.32,11.32Z"/></svg><span>Paid</span></p>
    </div>
  </div>
  <p class="bc__live" id="live" aria-live="polite"></p>
</div>
</main>

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

// 바코드 스캔 쿠폰 — 바코드는 repeating-linear-gradient 두 겹(주기 4px·9px)로 불규칙한 막대를 만들고,
// 스캔 빔이 translateY 로 훑고 지나간 뒤 결제 완료 상태로 컷 전환한다.

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

@include stage($stage-orange);

.bc { display: flex; flex-direction: column; align-items: center; gap: $sp-2; width: 100%; }
.bc__card {
  width: min(100%, 264px); background: $subject-cream; border-radius: $r-card;
  box-shadow: $shadow-raised; padding: $sp-3 $sp-4; border: 2px solid transparent;
}
.bc__head { display: flex; align-items: center; justify-content: space-between; gap: $sp-2; }
.bc__title { display: flex; align-items: center; gap: $sp-1; margin: 0; font-weight: 800; font-size: clamp(11px, 3.2vw, 13px); color: $subject-ink; }
.bc__ico { width: 16px; height: 16px; color: $subject-ink; }
.bc__state {
  background: rgba(23,20,26,.08); color: $subject-ink; border-radius: $r-pill;
  font-weight: 700; font-size: clamp(9px, 2.6vw, 10px); padding: 0 $sp-2; line-height: 1.6;
}
.bc__bars {
  position: relative; margin-top: $sp-2; height: 64px; border-radius: $r-sm; overflow: hidden;
  background:
    repeating-linear-gradient(90deg, $subject-ink 0 2px, transparent 2px 4px),
    repeating-linear-gradient(90deg, $subject-ink 0 3px, transparent 3px 9px);
  background-position: 0 0, 3px 0;
}
.bc__beam {
  position: absolute; left: 0; right: 0; top: 0; height: 4px; visibility: hidden;
  background: linear-gradient(180deg, transparent, rgba(76,212,166,.95) 40%, rgba(23,20,26,.9) 55%, transparent);
  box-shadow: 0 0 8px rgba(76,212,166,.8);
}
.bc.is-scanning .bc__beam { visibility: visible; animation: bcBeamOnce 800ms ease-in-out; }
@keyframes bcBeamOnce { 0% { transform: translateY(0); } 100% { transform: translateY(60px); } }
.bc__digits { margin: $sp-2 0 0; font-weight: 800; font-size: clamp(14px, 4.2vw, 18px); letter-spacing: .3em; color: $subject-ink; text-align: center; }
.bc__foot { position: relative; display: flex; justify-content: center; margin-top: $sp-2; min-height: 30px; }
.bc__btn {
  border: 0; cursor: pointer; background: $subject-ink; color: $subject-cream;
  border-radius: $r-pill; font-family: inherit; font-weight: 800;
  font-size: clamp(11px, 3vw, 12px); padding: $sp-1 $sp-5; line-height: 1.4;
  transition: transform 140ms cubic-bezier(.2,.8,.2,1);
}
.bc__btn:active { transform: scale(.94); }
.bc__btn:focus-visible { outline: 3px solid $subject-blue; outline-offset: 2px; }
.bc__done { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: $sp-1; margin: 0; visibility: hidden; }
.bc.is-done .bc__done { visibility: visible; }
.bc.is-done .bc__btn { visibility: hidden; }
.bc.is-done .bc__bars { opacity: .3; }
.bc.is-done .bc__digits { text-decoration: line-through; color: rgba(23,20,26,.4); }
.bc__tick { width: 14px; height: 14px; color: #479074; }
.bc__done span { font-weight: 800; font-size: clamp(11px, 3vw, 12px); color: #479074; }
.bc__live { margin: 0; min-height: 1.2em; font-weight: 700; font-size: clamp(10px, 2.8vw, 11px); color: $subject-cream; }

// ── 격자 미리보기 루프: 빔이 위→아래로 훑고(10~68%) 74% 결제 완료 컷 → 94% 복귀
.bc.is-demo .bc__beam { visibility: visible; animation: bcBeamLoop 2s ease-in-out infinite; }
@keyframes bcBeamLoop {
  0%, 10% { transform: translateY(0); }
  68% { transform: translateY(60px); }
  68.5%, 93% { transform: translateY(60px); opacity: 0; }
  93.5%, 100% { transform: translateY(0); opacity: 1; }
}
.bc.is-demo .bc__btn { animation: bcBtnCut 2s steps(1, end) infinite; }
@keyframes bcBtnCut { 0%, 73% { visibility: visible; } 73.5%, 93% { visibility: hidden; } 93.5%, 100% { visibility: visible; } }
.bc.is-demo .bc__done { visibility: visible; }
.bc.is-demo .bc__done { animation: bcDonePop 2s ease-out infinite; }
@keyframes bcDonePop { 0%, 73% { transform: scale(0); } 77%, 92% { transform: scale(1); } 94%, 100% { transform: scale(0); } }
.bc.is-demo .bc__bars { animation: bcBarsCut 2s steps(1, end) infinite; }
@keyframes bcBarsCut { 0%, 73% { opacity: 1; } 73.5%, 93% { opacity: .3; } 93.5%, 100% { opacity: 1; } }
.bc.is-demo .bc__digits { animation: bcDigitsCut 2s steps(1, end) infinite; }
@keyframes bcDigitsCut { 0%, 73% { opacity: 1; } 73.5%, 93% { opacity: .4; } 93.5%, 100% { opacity: 1; } }

@media (max-width: 340px) {
  .bc__card { padding: $sp-2 $sp-3; }
  .bc__bars { height: 40px; margin-top: $sp-1; }
  .bc__digits { margin-top: $sp-1; }
  .bc__foot { margin-top: $sp-1; min-height: 26px; }
  .bc { gap: $sp-1; }
}

@media (prefers-reduced-motion: reduce) {
  .bc.is-demo .bc__beam,
  .bc.is-demo .bc__btn,
  .bc.is-demo .bc__done,
  .bc.is-demo .bc__bars,
  .bc.is-demo .bc__digits { animation: none !important; }
  .bc__btn { transition: none !important; }
  .bc.is-demo .bc__beam { transform: translateY(28px); }
  .bc.is-demo .bc__done { transform: scale(1); }
  .bc.is-demo .bc__btn { visibility: hidden; }
  .bc.is-demo .bc__bars { opacity: .3; }
  .bc.is-demo .bc__digits { opacity: .4; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

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

.bc__card {
  width: min(100%, 264px);
  background: #fff7e6;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  padding: 12px 16px;
  border: 2px solid transparent;
}

.bc__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.bc__title {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  font-weight: 800;
  font-size: clamp(11px, 3.2vw, 13px);
  color: #17141a;
}

.bc__ico {
  width: 16px;
  height: 16px;
  color: #17141a;
}

.bc__state {
  background: rgba(23, 20, 26, 0.08);
  color: #17141a;
  border-radius: 999px;
  font-weight: 700;
  font-size: clamp(9px, 2.6vw, 10px);
  padding: 0 8px;
  line-height: 1.6;
}

.bc__bars {
  position: relative;
  margin-top: 8px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  background: repeating-linear-gradient(90deg, #17141a 0 2px, transparent 2px 4px), repeating-linear-gradient(90deg, #17141a 0 3px, transparent 3px 9px);
  background-position: 0 0, 3px 0;
}

.bc__beam {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  visibility: hidden;
  background: linear-gradient(180deg, transparent, rgba(76, 212, 166, 0.95) 40%, rgba(23, 20, 26, 0.9) 55%, transparent);
  box-shadow: 0 0 8px rgba(76, 212, 166, 0.8);
}

.bc.is-scanning .bc__beam {
  visibility: visible;
  animation: bcBeamOnce 800ms ease-in-out;
}

@keyframes bcBeamOnce {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(60px);
  }
}
.bc__digits {
  margin: 8px 0 0;
  font-weight: 800;
  font-size: clamp(14px, 4.2vw, 18px);
  letter-spacing: 0.3em;
  color: #17141a;
  text-align: center;
}

.bc__foot {
  position: relative;
  display: flex;
  justify-content: center;
  margin-top: 8px;
  min-height: 30px;
}

.bc__btn {
  border: 0;
  cursor: pointer;
  background: #17141a;
  color: #fff7e6;
  border-radius: 999px;
  font-family: inherit;
  font-weight: 800;
  font-size: clamp(11px, 3vw, 12px);
  padding: 4px 20px;
  line-height: 1.4;
  transition: transform 140ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.bc__btn:active {
  transform: scale(0.94);
}

.bc__btn:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 2px;
}

.bc__done {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin: 0;
  visibility: hidden;
}

.bc.is-done .bc__done {
  visibility: visible;
}

.bc.is-done .bc__btn {
  visibility: hidden;
}

.bc.is-done .bc__bars {
  opacity: 0.3;
}

.bc.is-done .bc__digits {
  text-decoration: line-through;
  color: rgba(23, 20, 26, 0.4);
}

.bc__tick {
  width: 14px;
  height: 14px;
  color: #479074;
}

.bc__done span {
  font-weight: 800;
  font-size: clamp(11px, 3vw, 12px);
  color: #479074;
}

.bc__live {
  margin: 0;
  min-height: 1.2em;
  font-weight: 700;
  font-size: clamp(10px, 2.8vw, 11px);
  color: #fff7e6;
}

.bc.is-demo .bc__beam {
  visibility: visible;
  animation: bcBeamLoop 2s ease-in-out infinite;
}

@keyframes bcBeamLoop {
  0%, 10% {
    transform: translateY(0);
  }
  68% {
    transform: translateY(60px);
  }
  68.5%, 93% {
    transform: translateY(60px);
    opacity: 0;
  }
  93.5%, 100% {
    transform: translateY(0);
    opacity: 1;
  }
}
.bc.is-demo .bc__btn {
  animation: bcBtnCut 2s steps(1, end) infinite;
}

@keyframes bcBtnCut {
  0%, 73% {
    visibility: visible;
  }
  73.5%, 93% {
    visibility: hidden;
  }
  93.5%, 100% {
    visibility: visible;
  }
}
.bc.is-demo .bc__done {
  visibility: visible;
}

.bc.is-demo .bc__done {
  animation: bcDonePop 2s ease-out infinite;
}

@keyframes bcDonePop {
  0%, 73% {
    transform: scale(0);
  }
  77%, 92% {
    transform: scale(1);
  }
  94%, 100% {
    transform: scale(0);
  }
}
.bc.is-demo .bc__bars {
  animation: bcBarsCut 2s steps(1, end) infinite;
}

@keyframes bcBarsCut {
  0%, 73% {
    opacity: 1;
  }
  73.5%, 93% {
    opacity: 0.3;
  }
  93.5%, 100% {
    opacity: 1;
  }
}
.bc.is-demo .bc__digits {
  animation: bcDigitsCut 2s steps(1, end) infinite;
}

@keyframes bcDigitsCut {
  0%, 73% {
    opacity: 1;
  }
  73.5%, 93% {
    opacity: 0.4;
  }
  93.5%, 100% {
    opacity: 1;
  }
}
@media (max-width: 340px) {
  .bc__card {
    padding: 8px 12px;
  }
  .bc__bars {
    height: 40px;
    margin-top: 4px;
  }
  .bc__digits {
    margin-top: 4px;
  }
  .bc__foot {
    margin-top: 4px;
    min-height: 26px;
  }
  .bc {
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .bc.is-demo .bc__beam,
  .bc.is-demo .bc__btn,
  .bc.is-demo .bc__done,
  .bc.is-demo .bc__bars,
  .bc.is-demo .bc__digits {
    animation: none !important;
  }
  .bc__btn {
    transition: none !important;
  }
  .bc.is-demo .bc__beam {
    transform: translateY(28px);
  }
  .bc.is-demo .bc__done {
    transform: scale(1);
  }
  .bc.is-demo .bc__btn {
    visibility: hidden;
  }
  .bc.is-demo .bc__bars {
    opacity: 0.3;
  }
  .bc.is-demo .bc__digits {
    opacity: 0.4;
  }
}

var bc = document.getElementById('bc');
var scanBtn = document.getElementById('scanBtn');
var stateTxt = document.getElementById('stateTxt');
var live = document.getElementById('live');
var bars = document.querySelector('.bc__bars');
scanBtn.addEventListener('click', function () {
  bc.classList.remove('is-demo');
  if (bc.classList.contains('is-done')) { return; }
  bc.classList.add('is-scanning');
  stateTxt.textContent = 'Scanning';
  window.setTimeout(function () {
    bc.classList.remove('is-scanning');
    bc.classList.add('is-done');
    stateTxt.textContent = 'Paid';
    live.textContent = 'The barcode was read and checkout completed';
  }, 800);
});

// BarcodeScanCoupon — vanilla 판(run/283/demo/07-coupon-barcode-scan/index.html) 의 React 포트.
// 스캔 버튼을 누르면 미리보기 루프에서 빠져나와 빔이 한 번 훑고(800ms) 결제 완료로 컷 전환한다.
import { useEffect, useRef, useState } from "react";
import type { CSSProperties } from "react";
import styles from "./BarcodeScanCoupon.module.scss";

export type BarcodeScanCouponProps = {
  /** 격자 미리보기 루프 한 바퀴 (vanilla 2s) */
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

/** 빔이 바코드를 훑는 시간 — scss 의 bcBeamOnce 800ms 와 같은 값 */
const SCAN_MS = 800;

export default function BarcodeScanCoupon({
  duration = 2000,
  easing = "ease-out",
  color = "#fff7e6",
}: BarcodeScanCouponProps) {
  const [demo, setDemo] = useState(true);
  const [scanning, setScanning] = useState(false);
  const [done, setDone] = useState(false);
  const [stateText, setStateText] = useState("대기 중");
  const [liveText, setLiveText] = useState("");
  const timerRef = useRef<number>(null);

  useEffect(() => {
    return () => {
      if (timerRef.current !== null) { window.clearTimeout(timerRef.current); }
    };
  }, []);

  function applyScan(): void {
    setDemo(false);
    if (done) { return; }
    setScanning(true);
    setStateText("스캔 중");
    timerRef.current = window.setTimeout(() => {
      setScanning(false);
      setDone(true);
      setStateText("결제 완료");
      setLiveText("바코드를 읽어 결제를 끝냈어요");
    }, SCAN_MS);
  }

  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  const cls: string = [
    styles.root,
    demo ? styles.isDemo : "",
    scanning ? styles.isScanning : "",
    done ? styles.isDone : "",
  ].filter(Boolean).join(" ");

  return (
    <main className={styles.stage}>
      <div className={cls} style={vars}>
        <div className={styles.card}>
          <div className={styles.head}>
            <p className={styles.title}>
              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" fill="currentColor" className={styles.ico} aria-hidden="true"><path d="M224,48V208H32V48Z" opacity="0.2" /><path d="M232,48V88a8,8,0,0,1-16,0V56H184a8,8,0,0,1,0-16h40A8,8,0,0,1,232,48ZM72,200H40V168a8,8,0,0,0-16,0v40a8,8,0,0,0,8,8H72a8,8,0,0,0,0-16Zm152-40a8,8,0,0,0-8,8v32H184a8,8,0,0,0,0,16h40a8,8,0,0,0,8-8V168A8,8,0,0,0,224,160ZM32,96a8,8,0,0,0,8-8V56H72a8,8,0,0,0,0-16H32a8,8,0,0,0-8,8V88A8,8,0,0,0,32,96ZM80,80a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,80,80Zm104,88V88a8,8,0,0,0-16,0v80a8,8,0,0,0,16,0ZM144,80a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,144,80Zm-32,0a8,8,0,0,0-8,8v80a8,8,0,0,0,16,0V88A8,8,0,0,0,112,80Z" /></svg>
              <span>멤버십 바코드</span>
            </p>
            <span className={styles.state}>{stateText}</span>
          </div>
          <div className={styles.bars} aria-hidden="true">
            <span className={styles.beam} />
          </div>
          <p className={styles.digits}>8842 0071 3390</p>
          <div className={styles.foot}>
            <button type="button" className={styles.btn} onClick={applyScan}>스캔</button>
            <p className={styles.done}>
              <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" fill="currentColor" className={styles.tick} aria-hidden="true"><path d="M232,56V200a16,16,0,0,1-16,16H40a16,16,0,0,1-16-16V56A16,16,0,0,1,40,40H216A16,16,0,0,1,232,56Z" opacity="0.2" /><path d="M205.66,85.66l-96,96a8,8,0,0,1-11.32,0l-40-40a8,8,0,0,1,11.32-11.32L104,164.69l90.34-90.35a8,8,0,0,1,11.32,11.32Z" /></svg>
              <span>결제 완료</span>
            </p>
          </div>
        </div>
        <p className={styles.live} aria-live="polite">{liveText}</p>
      </div>
    </main>
  );
}