<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Kole UI · ThemeSwitcher</title>
  <link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css" />
  <link rel="stylesheet" href="./ThemeSwitcher.css" />
</head>
<body>
  <div class="kole-page">
    <h2 class="kole-h2">ThemeSwitcher 主题切换</h2>
    <p class="kole-desc">日间 / 夜间 / 自动主题 + 品牌色切换，实时预览。</p>

    <div class="kole-demo">
      <div class="kole-themesw" id="sw" role="radiogroup" aria-label="主题模式">
        <div class="kole-themesw-opt" role="radio" aria-checked="false" tabindex="0" data-mode="light"><span class="kole-themesw-dot light"></span>日间</div>
        <div class="kole-themesw-opt" role="radio" aria-checked="false" tabindex="0" data-mode="dark"><span class="kole-themesw-dot dark"></span>夜间</div>
        <div class="kole-themesw-opt" role="radio" aria-checked="false" tabindex="0" data-mode="auto"><span class="kole-themesw-dot auto"></span>自动</div>
        <div class="kole-themesw-colors" id="colors"></div>
        <div class="kole-themesw-label" id="label"></div>
      </div>
      <div class="kole-card" style="margin-top:12px">
        <div class="kole-card__body">
          <button class="kole-btn kole-btn--primary">品牌色按钮</button>
          <span style="margin-left:10px">当前主题：<b id="cur"></b></span>
        </div>
      </div>
    </div>
  </div>

  <script>
    var brands = ['#2F54EB', '#1677FF', '#722ED1', '#13C2C2', '#FA541C', '#EB2F96'];
    var mode = 'auto', brand = '#2F54EB';
    var media = window.matchMedia ? window.matchMedia('(prefers-color-scheme: dark)') : null;
    try { mode = localStorage.getItem('kole-mode') || 'auto'; } catch (e) {}
    if (mode !== 'light' && mode !== 'dark' && mode !== 'auto') mode = 'auto';
    var colorsEl = document.getElementById('colors');
    brands.forEach(function (c) {
      var s = document.createElement('span');
      s.className = 'kole-themesw-color'; s.setAttribute('role','radio'); s.setAttribute('aria-label','品牌色 ' + c); s.setAttribute('aria-checked', 'false'); s.setAttribute('tabindex','0'); s.style.background = c; s.dataset.c = c;
      s.onclick = function () { brand = c; render(); };
      s.onkeydown = function (e) { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); brand = c; render(); } };
      colorsEl.appendChild(s);
    });
    document.querySelectorAll('.kole-themesw-opt').forEach(function (o) {
      o.onclick = function () { mode = o.dataset.mode; try { localStorage.setItem('kole-mode', mode); } catch (e) {} render(); };
      o.onkeydown = function (e) { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); o.click(); } };
    });
    function effective() { return mode === 'auto' && media ? (media.matches ? 'dark' : 'light') : mode; }
    function render() {
      var actual = effective();
      document.documentElement.classList.toggle('kole-dark', actual === 'dark');
      document.querySelectorAll('.kole-themesw-opt').forEach(function (o) { var active = o.dataset.mode === mode; o.classList.toggle('is-active', active); o.setAttribute('aria-checked', active ? 'true' : 'false'); });
      Array.prototype.forEach.call(colorsEl.children, function (c) { c.classList.toggle('is-active', c.dataset.c === brand); c.setAttribute('aria-checked', c.dataset.c === brand ? 'true' : 'false'); });
      document.documentElement.style.setProperty('--kole-color-brand', brand);
      document.getElementById('cur').textContent = mode === 'auto' ? '自动（当前：' + (actual === 'dark' ? '夜间' : '日间') + '）' : (actual === 'dark' ? '夜间' : '日间');
      document.getElementById('label').textContent = '品牌色：' + brand + '（应用于 Kole 品牌令牌实时预览）';
    }
    if (media) {
      var onChange = function () { if (mode === 'auto') render(); };
      if (media.addEventListener) media.addEventListener('change', onChange); else if (media.addListener) media.addListener(onChange);
    }
    render();
  </script>
</body>
</html>
