06Tool-call step progress

<main class="stage">
  <div class="ts-list is-demo">
    <div class="ts-step">
      <span class="ts-icon ts-icon--1"><svg viewBox="0 0 16 16"><path d="M3 8.5l3 3 7-7"/></svg></span>
      <span class="ts-label">Searching web</span>
    </div>
    <span class="ts-line ts-line--1"></span>
    <div class="ts-step">
      <span class="ts-icon ts-icon--2"><svg viewBox="0 0 16 16"><path d="M3 8.5l3 3 7-7"/></svg></span>
      <span class="ts-label">Reading page</span>
    </div>
    <span class="ts-line ts-line--2"></span>
    <div class="ts-step">
      <span class="ts-icon ts-icon--3"><svg viewBox="0 0 16 16"><path d="M3 8.5l3 3 7-7"/></svg></span>
      <span class="ts-label">Writing answer</span>
    </div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: 2s;
$easing: $ease-out;
$color: $subject-ink;

@include stage($stage-yellow);

.ts-list {
  display: grid;
  grid-template-columns: $sp-5 1fr;
  column-gap: $sp-3;
  width: min(260px, 84vw);
}

.ts-step { display: contents; }

.ts-icon {
  grid-column: 1;
  justify-self: center;
  width: $sp-5;
  height: $sp-5;
  border-radius: $r-pill;
  display: grid;
  place-items: center;
  background: rgba(23, 20, 26, .08);
  color: $color;

  svg { width: 12px; height: 12px; }
  path {
    fill: none;
    stroke: currentColor;
    stroke-width: 2.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 16;
    stroke-dashoffset: 16;
  }
}
.ts-icon--1 path { stroke-dashoffset: 0; } // 이미 끝난 첫 단계

.ts-label {
  grid-column: 2;
  align-self: center;
  padding: $sp-2 0;
  color: $color;
  font: 500 12px/1.2 -apple-system, "Segoe UI", sans-serif;
}

.ts-line {
  grid-column: 1;
  justify-self: center;
  width: 2px;
  height: $sp-6;
  background: rgba(23, 20, 26, .18);
  transform-origin: top; // 규칙8: 세로 연결선 위변 채움
  transform: scaleY(0);
}

// 실사용: 도구 이벤트마다 JS 가 .is-done 을 붙인다(위 스크립트). 데모 루프는 같은 순서를 keyframes 로 반복한다
@keyframes ts-line-fill  { 0%, 5%  { transform: scaleY(0); } 25%, 100% { transform: scaleY(1); } }
@keyframes ts-check-2    { 0%, 25% { stroke-dashoffset: 16; } 40%, 100% { stroke-dashoffset: 0; } }
@keyframes ts-line-fill2 { 0%, 40% { transform: scaleY(0); } 60%, 100% { transform: scaleY(1); } }
@keyframes ts-check-3    { 0%, 60% { stroke-dashoffset: 16; } 75%, 100% { stroke-dashoffset: 0; } }

.ts-list.is-demo .ts-line--1        { animation: ts-line-fill $duration $easing infinite; }
.ts-list.is-demo .ts-icon--2 path   { animation: ts-check-2 $duration $easing infinite; }
.ts-list.is-demo .ts-line--2        { animation: ts-line-fill2 $duration $easing infinite; }
.ts-list.is-demo .ts-icon--3 path   { animation: ts-check-3 $duration $easing infinite; }

@media (prefers-reduced-motion: reduce) {
  .ts-list.is-demo .ts-line--1,
  .ts-list.is-demo .ts-line--2 { animation: none !important; transform: scaleY(1) !important; }
  .ts-list.is-demo .ts-icon--2 path,
  .ts-list.is-demo .ts-icon--3 path { animation: none !important; stroke-dashoffset: 0 !important; }
}

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);
}

.ts-list {
  display: grid;
  grid-template-columns: 20px 1fr;
  column-gap: 12px;
  width: min(260px, 84vw);
}

.ts-step {
  display: contents;
}

.ts-icon {
  grid-column: 1;
  justify-self: center;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(23, 20, 26, 0.08);
  color: #17141a;
}
.ts-icon svg {
  width: 12px;
  height: 12px;
}
.ts-icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 16;
  stroke-dashoffset: 16;
}

.ts-icon--1 path {
  stroke-dashoffset: 0;
}

.ts-label {
  grid-column: 2;
  align-self: center;
  padding: 8px 0;
  color: #17141a;
  font: 500 12px/1.2 -apple-system, "Segoe UI", sans-serif;
}

.ts-line {
  grid-column: 1;
  justify-self: center;
  width: 2px;
  height: 24px;
  background: rgba(23, 20, 26, 0.18);
  transform-origin: top;
  transform: scaleY(0);
}

@keyframes ts-line-fill {
  0%, 5% {
    transform: scaleY(0);
  }
  25%, 100% {
    transform: scaleY(1);
  }
}
@keyframes ts-check-2 {
  0%, 25% {
    stroke-dashoffset: 16;
  }
  40%, 100% {
    stroke-dashoffset: 0;
  }
}
@keyframes ts-line-fill2 {
  0%, 40% {
    transform: scaleY(0);
  }
  60%, 100% {
    transform: scaleY(1);
  }
}
@keyframes ts-check-3 {
  0%, 60% {
    stroke-dashoffset: 16;
  }
  75%, 100% {
    stroke-dashoffset: 0;
  }
}
.ts-list.is-demo .ts-line--1 {
  animation: ts-line-fill 2s ease-out infinite;
}

.ts-list.is-demo .ts-icon--2 path {
  animation: ts-check-2 2s ease-out infinite;
}

.ts-list.is-demo .ts-line--2 {
  animation: ts-line-fill2 2s ease-out infinite;
}

.ts-list.is-demo .ts-icon--3 path {
  animation: ts-check-3 2s ease-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .ts-list.is-demo .ts-line--1,
  .ts-list.is-demo .ts-line--2 {
    animation: none !important;
    transform: scaleY(1) !important;
  }
  .ts-list.is-demo .ts-icon--2 path,
  .ts-list.is-demo .ts-icon--3 path {
    animation: none !important;
    stroke-dashoffset: 0 !important;
  }
}

// 실사용: 도구 호출 이벤트가 올 때마다 부른다 (이 데모의 자동 루프에는 연결하지 않는다)
function tsAdvance(list, n) {
  var steps = list.querySelectorAll('.ts-step');
  var lines = list.querySelectorAll('.ts-line');
  for (var i = 0; i < n; i++) steps[i].classList.add('is-done');
  for (var i = 0; i < n - 1; i++) lines[i].classList.add('is-done');
}

import { CSSProperties } from "react";
import styles from "./ToolStepProgress.module.scss";

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

export interface ToolStepProgressProps {
  duration?: string;
  easing?: string;
  color?: string;
  steps?: string[];
}

const Check = () => (
  <svg viewBox="0 0 16 16">
    <path d="M3 8.5l3 3 7-7" />
  </svg>
);

export default function ToolStepProgress({
  duration = "2s",
  easing = "ease-out",
  color = "#17141a",
  steps = ["Searching web", "Reading page", "Writing answer"],
}: ToolStepProgressProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--color": color,
  };
  return (
    <div className={styles.list} style={style}>
      <div className={styles.step}>
        <span className={`${styles.icon} ${styles.icon1}`}><Check /></span>
        <span className={styles.label}>{steps[0]}</span>
      </div>
      <span className={`${styles.line} ${styles.line1}`} />
      <div className={styles.step}>
        <span className={`${styles.icon} ${styles.icon2}`}><Check /></span>
        <span className={styles.label}>{steps[1]}</span>
      </div>
      <span className={`${styles.line} ${styles.line2}`} />
      <div className={styles.step}>
        <span className={`${styles.icon} ${styles.icon3}`}><Check /></span>
        <span className={styles.label}>{steps[2]}</span>
      </div>
    </div>
  );
}