// 处理主题样式
export function handleThemeStyle(theme) {
  const primary = normalizeHex(theme);
  const [r, g, b] = hexToRgb(primary);
  const light2 = getLightColor(primary, 0.2);
  const light3 = getLightColor(primary, 0.3);
  const light5 = getLightColor(primary, 0.5);

  document.documentElement.style.setProperty("--el-color-primary", primary);
  document.documentElement.style.setProperty("--el-color-primary-rgb", `${r}, ${g}, ${b}`);
  for (let i = 1; i <= 9; i++) {
    document.documentElement.style.setProperty(`--el-color-primary-light-${i}`, `${getLightColor(primary, i / 10)}`);
  }
  for (let i = 1; i <= 9; i++) {
    document.documentElement.style.setProperty(`--el-color-primary-dark-${i}`, `${getDarkColor(primary, i / 10)}`);
  }

  // 系统主题联动到侧边栏选中态与高亮
  document.documentElement.style.setProperty("--menu-active-bg", `linear-gradient(135deg, ${primary} 0%, ${light3} 100%)`);
  document.documentElement.style.setProperty("--menu-active-glow", `0 10px 24px rgba(${r}, ${g}, ${b}, 0.32)`);
  document.documentElement.style.setProperty("--menu-hover", `rgba(${r}, ${g}, ${b}, 0.2)`);
  document.documentElement.style.setProperty("--accent-primary", primary);
  document.documentElement.style.setProperty("--accent-light", light2);
  document.documentElement.style.setProperty("--accent-lighter", light5);

  // 新增：侧边栏与导航栏动态色彩联动
  // 侧边栏背景：极深的主题色变体，增加一点深度感
  const sidebarBg = getDarkColor(primary, 0.15);
  document.documentElement.style.setProperty("--sidebar-bg", sidebarBg);

  // 导航栏背景：带透明度的主题色变体，实现玻璃拟态
  document.documentElement.style.setProperty("--navbar-bg", `rgba(${r}, ${g}, ${b}, 0.85)`);

  // 页签栏背景：极浅的主题色变体，增加呼吸感
  const tagsBg = getLightColor(primary, 0.96);
  document.documentElement.style.setProperty("--tags-bg", tagsBg);

  // 文本颜色适配逻辑
  const brightness = (r * 299 + g * 587 + b * 114) / 1000;
  const isDarkTheme = brightness < 128;

  // 导航栏文字颜色：根据主题色亮度自动切换深浅
  document.documentElement.style.setProperty("--navbar-text", isDarkTheme ? "#f8fafc" : "#1e293b");

  // 侧边栏文字与图标颜色
  document.documentElement.style.setProperty("--sidebar-text", isDarkTheme ? "rgba(255, 255, 255, 0.75)" : "rgba(15, 23, 42, 0.75)");
  document.documentElement.style.setProperty("--sidebar-muted", isDarkTheme ? "rgba(255, 255, 255, 0.45)" : "rgba(15, 23, 42, 0.45)");

  // 激活项文字颜色：始终保持高对比度
  document.documentElement.style.setProperty("--menu-active-text", isDarkTheme ? "#ffffff" : "#ffffff"); // 通常主色调激活态用白色

  // 悬停与激活状态颜色
  document.documentElement.style.setProperty("--menu-hover", `rgba(${r}, ${g}, ${b}, ${isDarkTheme ? 0.12 : 0.08})`);
  document.documentElement.style.setProperty("--navbar-hover", `rgba(${r}, ${g}, ${b}, 0.1)`);

  // 表格表头颜色联动 (跟随主题，但颜色较浅)
  const tableHeaderBg = getLightColor(primary, 0.92);
  const tableHeaderText = getDarkColor(primary, 0.6); // 始终固定为深色，以覆盖浅色版本的需求
  document.documentElement.style.setProperty("--table-header-bg-custom", tableHeaderBg);
  document.documentElement.style.setProperty("--table-header-text-custom", tableHeaderText);

  // 边框颜色联动
  document.documentElement.style.setProperty("--surface-border", `rgba(${r}, ${g}, ${b}, 0.12)`);
}

// hex颜色转rgb颜色
export function hexToRgb(str) {
  str = normalizeHex(str).replace("#", "");
  const hexs = str.match(/../g) || ["40", "9e", "ff"];
  for (let i = 0; i < 3; i++) {
    hexs[i] = parseInt(hexs[i], 16);
  }
  return hexs;
}

// rgb颜色转hex颜色
export function rgbToHex(r, g, b) {
  const hexs = [r.toString(16), g.toString(16), b.toString(16)];
  for (let i = 0; i < 3; i++) {
    if (hexs[i].length === 1) {
      hexs[i] = `0${hexs[i]}`;
    }
  }
  return `#${hexs.join("")}`;
}

// 变浅颜色值
export function getLightColor(color, level) {
  const rgb = hexToRgb(color);
  for (let i = 0; i < 3; i++) {
    rgb[i] = Math.floor((255 - rgb[i]) * level + rgb[i]);
  }
  return rgbToHex(rgb[0], rgb[1], rgb[2]);
}

// 变深颜色值
export function getDarkColor(color, level) {
  const rgb = hexToRgb(color);
  for (let i = 0; i < 3; i++) {
    rgb[i] = Math.floor(rgb[i] * (1 - level));
  }
  return rgbToHex(rgb[0], rgb[1], rgb[2]);
}

function normalizeHex(color) {
  if (!color || typeof color !== "string") return "#409eff";
  let value = color.trim().replace("#", "");
  if (value.length === 3) {
    value = value
      .split("")
      .map(s => s + s)
      .join("");
  }
  if (!/^[0-9a-fA-F]{6}$/.test(value)) return "#409eff";
  return `#${value.toLowerCase()}`;
}