05Week timeline on a time axis

<main class="stage">
  <div class="wt is-demo">
    <div class="wt__body">
      <div class="wt__side" aria-hidden="true">
        <span class="wt__ico"><svg xmlns="http://www.w3.org/2000/svg" width="13" height="13" viewBox="0 0 256 256"><g fill="currentColor"><path d="M224 128a96 96 0 1 1-96-96a96 96 0 0 1 96 96" opacity=".2"/><path d="M128 24a104 104 0 1 0 104 104A104.11 104.11 0 0 0 128 24m0 192a88 88 0 1 1 88-88a88.1 88.1 0 0 1-88 88m64-88a8 8 0 0 1-8 8h-56a8 8 0 0 1-8-8V72a8 8 0 0 1 16 0v48h48a8 8 0 0 1 8 8"/></g></svg></span>
        <span class="wt__hr">9</span>
        <span class="wt__hr">10</span>
        <span class="wt__hr">11</span>
        <span class="wt__hr">12</span>
        <span class="wt__hr">13</span>
      </div>
      <div class="wt__grid" id="wt-grid" role="grid" aria-label="Week schedule timeline">
        <div class="wt__r wt__r--h" role="row">
          <span class="wt__h" role="columnheader">14</span>
          <span class="wt__h" role="columnheader">15</span>
          <span class="wt__h is-today" role="columnheader" aria-current="date">16</span>
          <span class="wt__h" role="columnheader">17</span>
          <span class="wt__h" role="columnheader">18</span>
        </div>
        <div class="wt__r" role="row">
          <div class="wt__c" role="gridcell" tabindex="0" data-h="9"><span class="wt__ev" style="--n:1.5">Sync</span></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="9"></div>
          <div class="wt__c is-today" role="gridcell" tabindex="-1" data-h="9"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="9"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="9"><span class="wt__ev" style="--n:2">Sync</span></div>
        </div>
        <div class="wt__r" role="row">
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="10"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="10"><span class="wt__ev wt__ev--b" style="--n:1">Review</span></div>
          <div class="wt__c is-today" role="gridcell" tabindex="-1" data-h="10"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="10"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="10"></div>
        </div>
        <div class="wt__r" role="row">
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="11"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="11"></div>
          <div class="wt__c is-today" role="gridcell" tabindex="-1" data-h="11"><span class="wt__ev wt__ev--l" style="--n:1">Review</span><span class="wt__ev wt__ev--b wt__ev--r" style="--n:1">Sync</span></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="11"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="11"></div>
        </div>
        <div class="wt__r" role="row">
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="12"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="12"></div>
          <div class="wt__c is-today" role="gridcell" tabindex="-1" data-h="12"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="12"><span class="wt__ev" style="--n:1">Lunch</span></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="12"></div>
        </div>
        <div class="wt__r" role="row">
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="13"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="13"></div>
          <div class="wt__c is-today" role="gridcell" tabindex="-1" data-h="13"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="13"></div>
          <div class="wt__c" role="gridcell" tabindex="-1" data-h="13"></div>
        </div>
      </div>
      <div class="wt__now" aria-hidden="true"><i class="wt__dot"></i></div>
    </div>
  </div>
</main>

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

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

@include stage($stage-ink);

.wt {
  --rowh: clamp(24px, 8.5vw, 32px);
  --headh: clamp(12px, 4vw, 16px);
  box-sizing: border-box;
  width: min(320px, 90vw);
  color: $subject-cream;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.wt__body { position: relative; display: flex; gap: $sp-1; }

// 왼쪽 시간 눈금 — 머리에 clock 아이콘
.wt__side {
  flex: 0 0 auto;
  width: clamp(16px, 5vw, 22px);
  display: flex;
  flex-direction: column;
  text-align: right;
}
.wt__ico {
  height: var(--headh);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  opacity: .7;
}
.wt__hr {
  height: var(--rowh);
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 600;
  line-height: 1.1;
  opacity: .55;
}

.wt__grid { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }

.wt__r {
  height: var(--rowh);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  position: relative;
}
.wt__r--h { height: var(--headh); }

.wt__h {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 700;
  opacity: .6;
}
.wt__h.is-today { opacity: 1; color: $subject-blue-light; }   // 먹 무대 위 파란 글자 — 5.69:1

.wt__c {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, .12);
  border-left: 1px solid rgba(255, 255, 255, .06);
}
.wt__c.is-today { background: rgba(255, 255, 255, .05); }
.wt__c:focus-visible { outline: 2px solid $subject-cream; outline-offset: -2px; }

// 일정 블록 — 시작 시각의 칸 안에서 자기 길이(--n)만큼 아래로 자란다
.wt__ev {
  position: absolute;
  left: 2px; right: 2px; top: 1px;
  z-index: 2;
  box-sizing: border-box;
  height: calc(var(--rowh) * var(--n) - 2px);
  padding: 0 $sp-1;
  border-radius: $r-xs;
  background: $color;
  color: $subject-cream;
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 700;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: box-shadow $duration $easing;
}
.wt__c:focus-visible .wt__ev { box-shadow: 0 0 0 2px rgba(255, 255, 255, .85); }
.wt__ev--b { background: $subject-cream; color: $stage-ink; }
// 겹치는 두 블록은 폭을 반씩 나눠 나란히 — 폭이 절반이니 글자도 한 눈금 줄인다(ja 가 가장 길다)
.wt__ev--l, .wt__ev--r { font-size: clamp(7px, 2.1vw, 9px); }
.wt__ev--l { right: 50%; }
.wt__ev--r { left: 50%; }

// ── 지금 시각 선: 위에서 아래로 천천히. 0%·100% 를 모두 투명으로 두어 이어 붙인다 ──
.wt__now {
  position: absolute;
  left: 0; right: 0;
  top: var(--headh);
  height: 2px;
  z-index: 3;
  background: $subject-cream;
  pointer-events: none;
  opacity: 0;
}
.wt__dot {
  position: absolute;
  left: 0; top: -3px;
  display: block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: $subject-cream;
}
.wt.is-demo .wt__now {
  animation-name: wt-now;
  animation-duration: $dur-loop;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}
// 첫·끝 프레임을 넉넉히 투명하게 잡아 둔다 — 헤드리스 캡처가 시작 두 프레임을
// 컴포지터 지연으로 늦게 잡는 일이 있어(실측), 0 구간이 짧으면 첫 프레임에 선이 남는다
// transform 은 0%·100% 에만 적어 선이 일정 속도로 내려오게 두고, opacity 만 끝을 물린다
@keyframes wt-now {
  0%   { transform: translateY(calc(var(--rowh) * .4));  opacity: 0; }
  10%  { opacity: 0; }
  22%  { opacity: 1; }
  78%  { opacity: 1; }
  90%  { opacity: 0; }
  100% { transform: translateY(calc(var(--rowh) * 4.7)); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .wt.is-demo .wt__now { animation: none !important; opacity: 1; transform: translateY(calc(var(--rowh) * 2.4)); }
  .wt__c { transition: none; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.wt {
  --rowh: clamp(24px, 8.5vw, 32px);
  --headh: clamp(12px, 4vw, 16px);
  box-sizing: border-box;
  width: min(320px, 90vw);
  color: #fff7e6;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.wt__body {
  position: relative;
  display: flex;
  gap: 4px;
}

.wt__side {
  flex: 0 0 auto;
  width: clamp(16px, 5vw, 22px);
  display: flex;
  flex-direction: column;
  text-align: right;
}

.wt__ico {
  height: var(--headh);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  opacity: 0.7;
}

.wt__hr {
  height: var(--rowh);
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 600;
  line-height: 1.1;
  opacity: 0.55;
}

.wt__grid {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.wt__r {
  height: var(--rowh);
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  position: relative;
}

.wt__r--h {
  height: var(--headh);
}

.wt__h {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 700;
  opacity: 0.6;
}

.wt__h.is-today {
  opacity: 1;
  color: #5b8cf8;
}

.wt__c {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}

.wt__c.is-today {
  background: rgba(255, 255, 255, 0.05);
}

.wt__c:focus-visible {
  outline: 2px solid #fff7e6;
  outline-offset: -2px;
}

.wt__ev {
  position: absolute;
  left: 2px;
  right: 2px;
  top: 1px;
  z-index: 2;
  box-sizing: border-box;
  height: calc(var(--rowh) * var(--n) - 2px);
  padding: 0 4px;
  border-radius: 4px;
  background: #0a4fe8;
  color: #fff7e6;
  font-size: clamp(8px, 2.4vw, 10px);
  font-weight: 700;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: box-shadow 300ms ease-out;
}

.wt__c:focus-visible .wt__ev {
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.85);
}

.wt__ev--b {
  background: #fff7e6;
  color: #17141a;
}

.wt__ev--l, .wt__ev--r {
  font-size: clamp(7px, 2.1vw, 9px);
}

.wt__ev--l {
  right: 50%;
}

.wt__ev--r {
  left: 50%;
}

.wt__now {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--headh);
  height: 2px;
  z-index: 3;
  background: #fff7e6;
  pointer-events: none;
  opacity: 0;
}

.wt__dot {
  position: absolute;
  left: 0;
  top: -3px;
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff7e6;
}

.wt.is-demo .wt__now {
  animation-name: wt-now;
  animation-duration: 2s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
}

@keyframes wt-now {
  0% {
    transform: translateY(calc(var(--rowh) * 0.4));
    opacity: 0;
  }
  10% {
    opacity: 0;
  }
  22% {
    opacity: 1;
  }
  78% {
    opacity: 1;
  }
  90% {
    opacity: 0;
  }
  100% {
    transform: translateY(calc(var(--rowh) * 4.7));
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .wt.is-demo .wt__now {
    animation: none !important;
    opacity: 1;
    transform: translateY(calc(var(--rowh) * 2.4));
  }
  .wt__c {
    transition: none;
  }
}

// role="grid" 위에서 화살표 키로 블록 사이를 옮겨 다닌다.
// 지금 시각 선은 사람이 만져도 계속 내려와야 하므로 .is-demo 를 떼지 않는다 (시계지 연출이 아니다).
var grid = document.getElementById('wt-grid');
var cells = [].slice.call(grid.querySelectorAll('.wt__c'));
var COLS = 5;

for (var i = 0; i < cells.length; i++) {
  var t = cells[i].textContent.replace(/\s+/g, ' ').trim();
  cells[i].setAttribute('aria-label', cells[i].getAttribute('data-h') + ':00' + (t ? ' ' + t : ''));
}
function rove(i) {
  for (var k = 0; k < cells.length; k++) cells[k].setAttribute('tabindex', k === i ? '0' : '-1');
  cells[i].focus({ preventScroll: true });
}
grid.addEventListener('pointerdown', function (e) {
  var c = e.target.closest ? e.target.closest('.wt__c') : null;
  if (!c) return;
  rove(cells.indexOf(c));
});
grid.addEventListener('keydown', function (e) {
  var i = cells.indexOf(document.activeElement);
  if (i < 0) return;
  var n = i;
  if (e.key === 'ArrowLeft') n = i - 1;
  else if (e.key === 'ArrowRight') n = i + 1;
  else if (e.key === 'ArrowUp') n = i - COLS;
  else if (e.key === 'ArrowDown') n = i + COLS;
  else if (e.key === 'Home') n = i - (i % COLS);
  else if (e.key === 'End') n = i - (i % COLS) + COLS - 1;
  else return;
  if (n < 0 || n >= cells.length) return;
  e.preventDefault();
  rove(n);
});

import { useEffect, useRef, useState } from "react";
import type { CSSProperties } from "react";
import styles from "./WeekTimelineCalendar.module.scss";

export type TimelineEvent = {
  /** 열 index (0 = 첫 요일) */
  col: number;
  /** 시작 시각 — hours 배열의 값 */
  hour: number;
  /** 길이(시간 단위) */
  span: number;
  title: string;
  /** 같은 시각에 겹치는 두 블록: "l" = 왼쪽 절반, "r" = 오른쪽 절반 */
  half?: "l" | "r";
  tone?: "a" | "b";
};

export type WeekTimelineCalendarProps = {
  hours?: number[];
  cols?: string[];
  events?: TimelineEvent[];
  /** 지금 시각 선이 한 바퀴 도는 시간(ms) */
  duration?: number;
  easing?: string;
  color?: string;
  todayCol?: number;
};

type Vars = CSSProperties & {
  "--duration"?: string; "--easing"?: string; "--color"?: string; "--n"?: number;
};
type KeyEvt = { key: string; preventDefault: () => void };

const DEFAULT_EVENTS: TimelineEvent[] = [
  { col: 0, hour: 9, span: 1.5, title: "회의" },
  { col: 4, hour: 9, span: 2, title: "회의" },
  { col: 1, hour: 10, span: 1, title: "리뷰", tone: "b" },
  { col: 2, hour: 11, span: 1, title: "리뷰", half: "l" },
  { col: 2, hour: 11, span: 1, title: "회의", half: "r", tone: "b" },
  { col: 3, hour: 12, span: 1, title: "점심" },
];

export default function WeekTimelineCalendar({
  hours = [9, 10, 11, 12, 13],
  cols = ["14", "15", "16", "17", "18"],
  events = DEFAULT_EVENTS,
  duration = 2000,
  easing = "linear",
  color = "#2f6df6",
  todayCol = 2,
}: WeekTimelineCalendarProps) {
  const [focus, setFocus] = useState(0);
  const cellRefs = useRef<(HTMLDivElement | null)[]>([]);
  const moved = useRef(false);
  const n = cols.length;
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  useEffect(() => {
    if (!moved.current) return;
    const el = cellRefs.current ? cellRefs.current[focus] : null;
    if (el) el.focus({ preventScroll: true });
  }, [focus]);

  function onKeyDown(i: number, e: KeyEvt) {
    let k = i;
    if (e.key === "ArrowLeft") k = i - 1;
    else if (e.key === "ArrowRight") k = i + 1;
    else if (e.key === "ArrowUp") k = i - n;
    else if (e.key === "ArrowDown") k = i + n;
    else if (e.key === "Home") k = i - (i % n);
    else if (e.key === "End") k = i - (i % n) + n - 1;
    else return;
    if (k < 0 || k >= hours.length * n) return;
    e.preventDefault();
    moved.current = true;
    setFocus(k);
  }

  return (
    <div className={styles.wt} style={vars}>
      <div className={styles.body}>
        <div className={styles.side} aria-hidden="true">
          <span className={styles.ico}>
            <svg xmlns="http://www.w3.org/2000/svg" width="13" height="13" viewBox="0 0 256 256">
              <g fill="currentColor">
                <path d="M224 128a96 96 0 1 1-96-96a96 96 0 0 1 96 96" opacity=".2" />
                <path d="M128 24a104 104 0 1 0 104 104A104.11 104.11 0 0 0 128 24m0 192a88 88 0 1 1 88-88a88.1 88.1 0 0 1-88 88m64-88a8 8 0 0 1-8 8h-56a8 8 0 0 1-8-8V72a8 8 0 0 1 16 0v48h48a8 8 0 0 1 8 8" />
              </g>
            </svg>
          </span>
          {hours.map((h) => <span className={styles.hr} key={h}>{h}</span>)}
        </div>

        <div className={styles.grid} role="grid">
          <div className={`${styles.row} ${styles.rowHead}`} role="row">
            {cols.map((c, i) => (
              <span
                key={c}
                className={`${styles.h} ${i === todayCol ? styles.isToday : ""}`}
                role="columnheader"
                aria-current={i === todayCol ? "date" : undefined}
              >
                {c}
              </span>
            ))}
          </div>
          {hours.map((h, r) => (
            <div className={styles.row} role="row" key={h}>
              {cols.map((c, ci) => {
                const i = r * n + ci;
                const here = events.filter((e) => e.col === ci && e.hour === h);
                return (
                  <div
                    key={c}
                    ref={(el: HTMLDivElement | null) => { if (cellRefs.current) cellRefs.current[i] = el; }}
                    className={`${styles.cell} ${ci === todayCol ? styles.isToday : ""}`}
                    role="gridcell"
                    tabIndex={i === focus ? 0 : -1}
                    aria-label={`${h}:00 ${here.map((e) => e.title).join(" ")}`.trim()}
                    onKeyDown={(e: KeyEvt) => onKeyDown(i, e)}
                  >
                    {here.map((e, k) => (
                      <span
                        key={`${e.title}-${k}`}
                        className={[
                          styles.ev,
                          e.tone === "b" ? styles.evB : "",
                          e.half === "l" ? styles.evL : "",
                          e.half === "r" ? styles.evR : "",
                        ].join(" ")}
                        style={{ "--n": e.span } as Vars}
                      >
                        {e.title}
                      </span>
                    ))}
                  </div>
                );
              })}
            </div>
          ))}
        </div>

        <div className={styles.now} aria-hidden="true"><i className={styles.dot} /></div>
      </div>
    </div>
  );
}