04よくある値減点 — 入力値があらかじめ決めたよくある値のリストと同じ状態になると強度の値が減る方式

<main class="stage">
<div class="cl is-demo" id="cl">
  <label class="cl__field">
    <input class="cl__input" id="clInput" type="text" autocomplete="off" spellcheck="false" value="">
  </label>
  <div class="cl__track"><div class="cl__fill" id="clFill"></div></div>
  <div class="cl__row">
    <span class="cl__score">値 <b id="clScore">0</b>/100</span>
    <span class="cl__warn" id="clWarn">よくある値 <b id="clPenalty">-40</b></span>
  </div>
</div>
</main>

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

// 계산 겹: 길이 기반 기본 점수에서, 값이 가상 흔한 값 목록과 완전히 일치하면
// 고정 감점(-40)을 적용한다 — 목록 포함 여부가 곧 감점 여부를 가르는 분기다.
@include stage($stage-paper);

.cl {
  width: 100%;
  max-width: 320px;
  display: grid;
  gap: $sp-3;
}

.cl__field { display: block; }

.cl__input {
  width: 100%;
  box-sizing: border-box;
  padding: $sp-3 $sp-4;
  border-radius: $r-control;
  border: 0;
  background: $subject-blue-light;
  color: $subject-blue-deep;
  font: 500 16px/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  letter-spacing: .04em;
  -webkit-text-security: disc;

  &:focus { outline: 2px solid $subject-blue-deep; outline-offset: 2px; }
}

.cl__track {
  position: relative;
  height: $sp-3;
  border-radius: $r-sm;
  background: rgba($subject-blue-deep, .14);
  overflow: hidden;
}

.cl__fill {
  position: absolute;
  inset: 0;
  border-radius: $r-sm;
  background: $subject-blue;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform $dur-base $ease-out, background-color $dur-base $ease-out;
}

.cl--hit .cl__fill { background: $error; }

.cl__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: $sp-2;
  font: 600 13px/1.2 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: $subject-blue-deep;
}

.cl__score b { font-variant-numeric: tabular-nums; }

.cl__warn {
  color: $error;
  opacity: 0;
  transform: scale(.7);
  transform-origin: right center;
  transition: opacity $dur-base $ease-out, transform $dur-base $ease-out;
}

@media (max-width: 340px) {
  .cl { max-width: 260px; }
  .cl__input { padding: $sp-2 $sp-3; font-size: 14px; }
  .cl__row { font-size: 11px; }
}

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

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);
}

.cl {
  width: 100%;
  max-width: 320px;
  display: grid;
  gap: 12px;
}

.cl__field {
  display: block;
}

.cl__input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 16px;
  border-radius: 12px;
  border: 0;
  background: #5b8cf8;
  color: #0a4fe8;
  font: 500 16px/1.3 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  letter-spacing: 0.04em;
  -webkit-text-security: disc;
}
.cl__input:focus {
  outline: 2px solid #0a4fe8;
  outline-offset: 2px;
}

.cl__track {
  position: relative;
  height: 12px;
  border-radius: 8px;
  background: rgba(10, 79, 232, 0.14);
  overflow: hidden;
}

.cl__fill {
  position: absolute;
  inset: 0;
  border-radius: 8px;
  background: #2f6df6;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 300ms ease-out, background-color 300ms ease-out;
}

.cl--hit .cl__fill {
  background: #c2361a;
}

.cl__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font: 600 13px/1.2 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: #0a4fe8;
}

.cl__score b {
  font-variant-numeric: tabular-nums;
}

.cl__warn {
  color: #c2361a;
  opacity: 0;
  transform: scale(0.7);
  transform-origin: right center;
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}

@media (max-width: 340px) {
  .cl {
    max-width: 260px;
  }
  .cl__input {
    padding: 8px 12px;
    font-size: 14px;
  }
  .cl__row {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .cl__fill, .cl__warn {
    transition: none;
  }
}

(function () {
  var root = document.getElementById('cl');
  var input = document.getElementById('clInput');
  var fill = document.getElementById('clFill');
  var scoreEl = document.getElementById('clScore');
  var warn = document.getElementById('clWarn');

  // 계산 겹: 가상 よくある値 소형 목록(일반 패턴형 10개, 외부 유출 목록 아님) — 실제 서비스명 0.
  var COMMON = ['password', '123456', 'qwerty', '111111', 'abc123',
                'letmein', 'iloveyou', 'admin', 'welcome', 'monkey'];
  var PENALTY = 40;

  function scoreOf(value) {
    var base = Math.min(100, value.length * 8);
    var hit = value.length > 0 && COMMON.indexOf(value.toLowerCase()) !== -1;
    var score = hit ? Math.max(0, base - PENALTY) : base;
    return { score: score, hit: hit };
  }

  function paint(value) {
    var r = scoreOf(value);
    fill.style.transform = 'scaleX(' + (r.score / 100) + ')';
    root.classList.toggle('cl--hit', r.hit);
    scoreEl.textContent = String(r.score);
    warn.style.opacity = r.hit ? '1' : '0';
    warn.style.transform = r.hit ? 'scale(1)' : 'scale(.7)';
  }

  input.addEventListener('input', function () {
    root.classList.remove('is-demo');
    stopAutoplay();
    paint(input.value);
  });

  paint(input.value);

  // 자동 루프: 시드 고정 문자열 배열 — 흔한 값과 일반 값을 번갈아 입력한다.
  var SEQ = ['', 'x7Ba9K2', 'password', 'x7Ba9K2Q', '123456', 'GreenTiger42', 'qwerty', ''];
  var si = 0;
  var autoTimer = null;
  function autoTick() { input.value = SEQ[si]; paint(SEQ[si]); si = (si + 1) % SEQ.length; }
  function stopAutoplay() { if (autoTimer) { clearInterval(autoTimer); autoTimer = null; } }
  var reduce = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
  if (!reduce) { autoTimer = setInterval(autoTick, 360); autoTick(); }
})();

import { useEffect, useRef } from "react";
import styles from "./CommonListPenalty.module.scss";

type Box<T> = { current: T };

const PENALTY = 40;

export default function CommonListPenalty() {
  const rootRef = useRef(null) as unknown as Box<HTMLDivElement | null>;

  useEffect(() => {
    const root = rootRef.current;
    if (!root) return;
    const input = root.querySelector(`.${styles.input}`) as HTMLInputElement | null;
    const fill = root.querySelector(`.${styles.fill}`) as HTMLElement | null;
    const scoreEl = root.querySelector(`.${styles.scoreNum}`) as HTMLElement | null;
    const warn = root.querySelector(`.${styles.warn}`) as HTMLElement | null;
    if (!input || !fill || !scoreEl || !warn) return;

    // 계산 겹: 가상 흔한 값 소형 목록(일반 패턴형 10개, 외부 유출 목록 아님) — 실제 서비스명 0.
    const COMMON = ["password", "123456", "qwerty", "111111", "abc123",
      "letmein", "iloveyou", "admin", "welcome", "monkey"];

    function scoreOf(value: string) {
      const base = Math.min(100, value.length * 8);
      const hit = value.length > 0 && COMMON.indexOf(value.toLowerCase()) !== -1;
      const score = hit ? Math.max(0, base - PENALTY) : base;
      return { score, hit };
    }

    function paint(value: string) {
      const r = scoreOf(value);
      fill!.style.transform = "scaleX(" + r.score / 100 + ")";
      root!.classList.toggle(styles["cl--hit"], r.hit);
      scoreEl!.textContent = String(r.score);
      warn!.style.opacity = r.hit ? "1" : "0";
      warn!.style.transform = r.hit ? "scale(1)" : "scale(.7)";
    }

    function onInput() {
      root!.classList.remove(styles["is-demo"]);
      stopAutoplay();
      paint(input!.value);
    }
    input.addEventListener("input", onInput);
    paint(input.value);

    // 자동 루프: 시드 고정 문자열 배열 — 흔한 값과 일반 값을 번갈아 입력한다.
    const SEQ = ["", "x7Ba9K2", "password", "x7Ba9K2Q", "123456", "GreenTiger42", "qwerty", ""];
    let si = 0;
    let autoTimer: number | null = null;
    function autoTick() { input!.value = SEQ[si]; paint(SEQ[si]); si = (si + 1) % SEQ.length; }
    function stopAutoplay() { if (autoTimer !== null) { window.clearInterval(autoTimer); autoTimer = null; } }
    const reduce = window.matchMedia("(prefers-reduced-motion: reduce)").matches;
    if (!reduce) { autoTimer = window.setInterval(autoTick, 360); autoTick(); }

    return () => {
      stopAutoplay();
      input.removeEventListener("input", onInput);
    };
  }, []);

  return (
    <div ref={rootRef} className={`${styles.stage} ${styles.cl} ${styles["is-demo"]}`}>
      <label className={styles.field}>
        <input className={styles.input} type="text" autoComplete="off" spellCheck={false} defaultValue="" />
      </label>
      <div className={styles.track}><div className={styles.fill} /></div>
      <div className={styles.row}>
        <span className={styles.score}>값 <b className={styles.scoreNum}>0</b>/100</span>
        <span className={styles.warn}>흔한 값 <b>-{PENALTY}</b></span>
      </div>
    </div>
  );
}