08Odometer time scrubber

<main class="stage">
  <div class="tp is-demo">
    <div class="tp__col" data-target="h">
      <button type="button" class="tp__btn" data-dir="1" aria-label="Increase hour">+</button>
      <div class="tp__win"><span class="tp__val is-cur">09</span><span class="tp__val is-next">10</span></div>
      <button type="button" class="tp__btn" data-dir="-1" aria-label="Decrease hour">−</button>
      <span class="tp__unit">hr</span>
    </div>
    <span class="tp__colon" aria-hidden="true">:</span>
    <div class="tp__col" data-target="m">
      <button type="button" class="tp__btn" data-dir="1" aria-label="Increase minute">+</button>
      <div class="tp__win"><span class="tp__val is-cur">05</span><span class="tp__val is-next">06</span></div>
      <button type="button" class="tp__btn" data-dir="-1" aria-label="Decrease minute">−</button>
      <span class="tp__unit">min</span>
    </div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────
$duration: $dur-base;
$easing: $ease-spring;
$color: $subject-ink;

@include stage($stage-paper);

.tp { display: flex; align-items: center; gap: $sp-2; }
.tp__col { display: flex; flex-direction: column; align-items: center; gap: $sp-1; }
.tp__btn {
  width: 28px; height: 24px;
  border: 0; border-radius: $r-xs;
  background: rgba($color, .1);
  color: $color;
  font-weight: 700; font-size: 15px; font-family: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.tp__win {
  position: relative;
  overflow: hidden;
  width: 2.4ch; height: 1.5em;
  font-variant-numeric: tabular-nums;
}
.tp__val {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: 700; font-family: inherit; color: $color;
  transition: transform $duration $easing;
}
.tp__val.is-cur { transform: translateY(0); }
.tp__val.is-next { transform: translateY(100%); }
.tp__val.is-leaving { transform: translateY(-100%); }
.tp__val.is-arriving {
  transform: translateY(0);
  transform-origin: top;
  animation: tp-arrive-jelly $duration $easing;
}
// 도착 젤리: translateY(0) 에 도착한 뒤 scaleY 로 눌림-늘림을 얹는다 (translateY 는 유지해 점프 없이)
@keyframes tp-arrive-jelly {
  0%   { transform: translateY(0) scaleY(1); }
  50%  { transform: translateY(0) scaleY(1.15); }
  75%  { transform: translateY(0) scaleY(.95); }
  100% { transform: translateY(0) scaleY(1); }
}
.tp__unit { font-size: 12px; color: rgba($color, .72); }
.tp__colon { font-size: 22px; font-weight: 700; color: $color; align-self: flex-start; margin-top: $sp-2; }

@media (prefers-reduced-motion: reduce) {
  .tp__val { transition: none; }
  .tp__val.is-arriving { animation: none !important; transform: translateY(0); }
}

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

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

.tp {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tp__col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.tp__btn {
  width: 28px;
  height: 24px;
  border: 0;
  border-radius: 4px;
  background: rgba(23, 20, 26, 0.1);
  color: #17141a;
  font-weight: 700;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.tp__win {
  position: relative;
  overflow: hidden;
  width: 2.4ch;
  height: 1.5em;
  font-variant-numeric: tabular-nums;
}

.tp__val {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  font-weight: 700;
  font-family: inherit;
  color: #17141a;
  transition: transform 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.tp__val.is-cur {
  transform: translateY(0);
}

.tp__val.is-next {
  transform: translateY(100%);
}

.tp__val.is-leaving {
  transform: translateY(-100%);
}

.tp__val.is-arriving {
  transform: translateY(0);
  transform-origin: top;
  animation: tp-arrive-jelly 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes tp-arrive-jelly {
  0% {
    transform: translateY(0) scaleY(1);
  }
  50% {
    transform: translateY(0) scaleY(1.15);
  }
  75% {
    transform: translateY(0) scaleY(0.95);
  }
  100% {
    transform: translateY(0) scaleY(1);
  }
}
.tp__unit {
  font-size: 12px;
  color: rgba(23, 20, 26, 0.72);
}

.tp__colon {
  font-size: 22px;
  font-weight: 700;
  color: #17141a;
  align-self: flex-start;
  margin-top: 8px;
}

@media (prefers-reduced-motion: reduce) {
  .tp__val {
    transition: none;
  }
  .tp__val.is-arriving {
    animation: none !important;
    transform: translateY(0);
  }
}

// 실제 동작: +/- 를 누르면 현재 숫자가 밀려나가고 다음 숫자가 그 자리로 굴러 들어온다 (odometer). 23줄
var tp = document.querySelector('.tp');
function roll(col, dir) {
  var win = col.querySelector('.tp__win');
  var cur = win.querySelector('.is-cur'), next = win.querySelector('.is-next');
  var v = (parseInt(cur.textContent, 10) + dir + 60) % 60;
  next.textContent = String(v).padStart(2, '0');
  cur.classList.add('is-leaving'); next.classList.add('is-arriving');
  next.addEventListener('transitionend', function done() {
    next.removeEventListener('transitionend', done);
    cur.classList.remove('is-cur', 'is-leaving'); cur.classList.add('is-next');
    cur.style.transition = 'none'; void cur.offsetWidth; cur.style.transition = '';
    next.classList.remove('is-arriving'); next.classList.add('is-cur');
  }, { once: true });
}
tp.querySelectorAll('.tp__btn').forEach(function (btn) {
  btn.addEventListener('pointerdown', function () {
    tp.classList.remove('is-demo'); clearInterval(loop);
    roll(btn.closest('.tp__col'), parseInt(btn.dataset.dir, 10));
  });
});
// .is-demo 자동 순환 — 두 칸을 번갈아 굴린다 (실제 클릭이 오면 멈춘다)
var cols = tp.querySelectorAll('.tp__col'), j = 0;
var loop = setInterval(function () { roll(cols[j % cols.length], 1); j++; }, 900);

import { useState } from "react";
import type { CSSProperties } from "react";
import styles from "./TimePickerOdometerScrub.module.scss";

export type TimePickerOdometerScrubProps = {
  initialHour?: number;
  initialMinute?: number;
  duration?: number;
  easing?: string;
  digitColor?: string;
};

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

function pad(n: number) {
  return String((n + 60) % 60).padStart(2, "0");
}

export default function TimePickerOdometerScrub({
  initialHour = 9,
  initialMinute = 5,
  duration = 300,
  easing = "cubic-bezier(.2,.8,.2,1)",
  digitColor = "#17141a",
}: TimePickerOdometerScrubProps) {
  const [hour, setHour] = useState(initialHour);
  const [minute, setMinute] = useState(initialMinute);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--digit": digitColor };

  function Column({ value, unit, onChange, incLabel, decLabel }: { value: number; unit: string; onChange: (d: number) => void; incLabel: string; decLabel: string }) {
    return (
      <div className={styles.col}>
        <button type="button" className={styles.btn} aria-label={incLabel} onClick={() => onChange(1)}>+</button>
        <div className={styles.win} key={value}>
          <span className={styles.val}>{pad(value)}</span>
        </div>
        <button type="button" className={styles.btn} aria-label={decLabel} onClick={() => onChange(-1)}>−</button>
        <span className={styles.unit}>{unit}</span>
      </div>
    );
  }

  return (
    <div className={styles.tp} style={vars}>
      <Column value={hour} unit="hr" incLabel="Increase hour" decLabel="Decrease hour" onChange={(d) => setHour((h) => Number(pad(h + d)))} />
      <span className={styles.colon} aria-hidden="true">:</span>
      <Column value={minute} unit="min" incLabel="Increase minute" decLabel="Decrease minute" onChange={(d) => setMinute((m) => Number(pad(m + d)))} />
    </div>
  );
}