---
import ThemeSwitcher from "./ThemeSwitcher.astro";
---

<header class="wi-navbar-wrapper" id="wi-navbar" th:classappend="${theme.config?.navbar?.navbar_style == 'minimal'} ? 'wi-navbar--minimal' : (${theme.config?.navbar?.navbar_style == 'float'} ? 'wi-navbar--float' : 'wi-navbar--glass')">
  <div class="wi-navbar__capsule">
    <a
      class="wi-navbar__brand"
      th:href="@{/}"
      th:with="brandType=${theme.config?.navbar?.navbar_brand_type}, logoUrl=${!#strings.isEmpty(theme.config?.navbar?.navbar_logo) ? theme.config?.navbar?.navbar_logo : theme.config?.basic?.logo}, logoRadius=${theme.config?.navbar?.navbar_logo_radius}"
    >
      <img
        th:if="${brandType == 'logo' and !#strings.isEmpty(logoUrl)}"
        th:src="${logoUrl}"
        alt=""
        th:class="${'wi-navbar__logo wi-navbar__logo--' + (logoRadius != null ? logoRadius : 'rounded')}"
        loading="eager"
        decoding="async"
        onerror="this.style.display='none'"
      />
      <span
        th:if="${brandType != 'logo' or #strings.isEmpty(logoUrl)}"
        class="wi-navbar__title"
        th:text="${site.title}"
      ></span>
    </a>

    <nav
      class="wi-navbar__nav"
      aria-label="Main navigation"
    >
      <th:block th:if="${menuFinder != null}">
        <th:block th:with="menu = ${menuFinder.getPrimary()}">
          <th:block th:if="${menu != null and menu.menuItems != null and not #lists.isEmpty(menu.menuItems)}">
            <div
              th:each="menuItem : ${menu.menuItems}"
              class="wi-navbar__item"
              th:classappend="${not #lists.isEmpty(menuItem.children)} ? 'wi-navbar__item--has-children'"
            >
              <a
                th:href="@{${menuItem.status.href}}"
                th:target="${menuItem.spec?.target?.value == '_blank'} ? '_blank' : '_self'"
                th:text="${menuItem.status.displayName}"
                class="wi-navbar__link"
                th:data-href="${menuItem.status.href}"
                th:aria-haspopup="${not #lists.isEmpty(menuItem.children)} ? 'true' : null"
              >
              </a>
              <div
                class="wi-navbar__submenu"
                th:if="${not #lists.isEmpty(menuItem.children)}"
              >
                <a
                  th:each="child : ${menuItem.children}"
                  th:href="@{${child.status.href}}"
                  th:target="${child.spec?.target?.value == '_blank'} ? '_blank' : '_self'"
                  th:text="${child.status.displayName}"
                  class="wi-navbar__submenu-link"
                >
                </a>
              </div>
            </div>
          </th:block>
        </th:block>
      </th:block>
    </nav>

    <div class="wi-navbar__actions">
      <button
        th:if="${pluginFinder.available('PluginSearchWidget') and theme.config?.navbar?.navbar_show_search != false}"
        class="wi-navbar__action-btn wi-navbar__search-btn"
        type="button"
        th:aria-label="${theme.config?.basic?.label_search ?: '搜索'}"
        onclick="SearchWidget.open()"
      >
        <svg xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><path d="m21 21-4.3-4.3"/></svg>
      </button>

      <th:block th:if="${theme.config?.navbar?.navbar_show_theme_switch != false}">
        <span th:attr="data-label=${theme.config?.basic?.label_theme_switch ?: '切换主题'}" style="display:inline-flex">
          <ThemeSwitcher />
        </span>
      </th:block>

      <button
        class="wi-navbar__action-btn wi-navbar__menu-btn"
        type="button"
        aria-label="Toggle menu"
      >
        <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="4" x2="20" y1="12" y2="12"/><line x1="4" x2="20" y1="6" y2="6"/><line x1="4" x2="20" y1="18" y2="18"/></svg>
      </button>
    </div>
  </div>
</header>

<script is:inline th:inline="none">
  const navbar = document.getElementById("wi-navbar");
  let lastScrollY = window.scrollY;
  let ticking = false;

  function onScroll() {
    if (!ticking) {
      requestAnimationFrame(() => {
        const currentScrollY = window.scrollY;

        if (currentScrollY > 20) {
          navbar?.classList.add("wi-navbar--scrolled");
        } else {
          navbar?.classList.remove("wi-navbar--scrolled");
        }

        if (currentScrollY > lastScrollY && currentScrollY > 80) {
          navbar?.classList.add("wi-navbar--hidden");
        } else if (currentScrollY < lastScrollY) {
          navbar?.classList.remove("wi-navbar--hidden");
        }

        lastScrollY = currentScrollY;
        ticking = false;
      });
      ticking = true;
    }
  }

  window.addEventListener("scroll", onScroll, { passive: true });

  document.querySelectorAll('.wi-navbar__link[data-href]').forEach(function(link) {
    try {
      if (new URL(link.href).pathname === window.location.pathname) {
        link.classList.add('wi-navbar__link--active');
      }
    } catch(e) {}
  });

  document.querySelector(".wi-navbar__menu-btn")?.addEventListener("click", () => {
    window.dispatchEvent(new CustomEvent("wi:toggle-mobile-menu"));
  });
</script>

<style>
  .wi-navbar-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0.75rem 1rem;
    pointer-events: none;
    transition:
      transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
      padding var(--duration-normal) var(--ease-out-expo);
  }

  .wi-navbar--hidden {
    transform: translateY(-100%);
  }

  .wi-navbar__capsule {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    height: 56px;
    padding: 0 1.5rem;
    margin: 0 auto;
    pointer-events: auto;
    transition:
      background var(--duration-normal) var(--ease-out-expo),
      box-shadow var(--duration-normal) var(--ease-out-expo),
      transform var(--duration-normal) var(--ease-out-expo);
  }

  .wi-navbar--glass .wi-navbar__capsule {
    border-radius: 9999px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    max-width: 900px;
  }

  .wi-navbar--glass.wi-navbar--scrolled .wi-navbar__capsule {
    background: var(--bg-overlay);
    box-shadow: var(--shadow-lg);
    transform: scale(0.98);
  }

  .wi-navbar--minimal {
    padding: 0;
  }

  .wi-navbar--minimal .wi-navbar__capsule {
    border-radius: 0;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border: none;
    border-bottom: 1px solid transparent;
    box-shadow: none;
    max-width: 100%;
    padding: 0 2rem;
    transition: background 0.3s ease, border-color 0.3s ease;
  }

  .wi-navbar--minimal.wi-navbar--scrolled .wi-navbar__capsule {
    background: var(--bg);
    border-bottom-color: var(--rule);
  }

  .wi-navbar--float .wi-navbar__capsule {
    border-radius: 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background 0.3s ease, box-shadow 0.3s ease;
  }

  .wi-navbar--float.wi-navbar--scrolled .wi-navbar__capsule {
    transform: scale(0.96);
    box-shadow: var(--shadow-md);
  }

  .wi-navbar__brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    flex-shrink: 0;
  }

  .wi-navbar__logo {
    height: 32px;
    width: auto;
    border-radius: 8px;
    object-fit: contain;
  }

  .wi-navbar__logo--square {
    border-radius: 0;
  }

  .wi-navbar__logo--rounded {
    border-radius: 8px;
  }

  .wi-navbar__logo--circle {
    border-radius: 50%;
  }

  .wi-navbar__title {
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: var(--text-md);
    color: var(--ink);
    letter-spacing: var(--tracking-tight);
    white-space: nowrap;
    transition: color var(--duration-fast) var(--ease-out-quart);
  }

  .wi-navbar__brand:hover .wi-navbar__title {
    color: var(--accent);
  }

  .wi-navbar__nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
    justify-content: center;
    min-width: 0;
  }

  /* 一级菜单项容器（含子菜单时作为下拉的定位锚点） */
  .wi-navbar__item {
    position: relative;
    display: inline-flex;
  }

  /* 二级下拉：纯 CSS 悬停/聚焦展开，无 JS 开销 */
  .wi-navbar__submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    display: flex;
    flex-direction: column;
    min-width: 168px;
    padding: 6px;
    margin: 0;
    list-style: none;
    border-radius: var(--radius-md, 12px);
    background: var(--bg-raised);
    border: 1px solid var(--rule);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease, transform 0.18s var(--ease-out-quart),
      visibility 0.18s;
    z-index: 101;
  }

  /* 悬停桥：避免鼠标从一级移到二级途中经过空隙导致菜单关闭 */
  .wi-navbar__item--has-children::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: 10px;
  }

  .wi-navbar__item--has-children:hover .wi-navbar__submenu,
  .wi-navbar__item--has-children:focus-within .wi-navbar__submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  .wi-navbar__submenu-link {
    display: block;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    font-size: var(--text-sm);
    color: var(--ink-2);
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.15s ease, background 0.15s ease;
  }

  .wi-navbar__submenu-link:hover {
    color: var(--accent);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
  }

  /* 有子菜单的一级项带下拉小箭头 */
  .wi-navbar__item--has-children > .wi-navbar__link::after {
    content: "";
    display: inline-block;
    width: 4px;
    height: 4px;
    margin-left: 0.3rem;
    margin-top: -2px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    opacity: 0.6;
    transition: transform 0.18s var(--ease-out-quart);
  }

  .wi-navbar__item--has-children:hover > .wi-navbar__link::after {
    transform: rotate(225deg);
    margin-top: 2px;
  }

  .wi-navbar__link {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.7rem;
    border-radius: 9999px;
    font-size: var(--text-sm);
    color: var(--ink-2);
    text-decoration: none;
    white-space: nowrap;
    transition:
      color var(--duration-fast) var(--ease-out-quart),
      background var(--duration-fast) var(--ease-out-quart);
  }

  .wi-navbar__link:hover {
    color: var(--accent);
    background: var(--bg-raised);
  }

  .wi-navbar__link--active {
    color: var(--ink);
    background: var(--bg-raised);
    font-weight: 600;
  }

  .wi-navbar__actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
    margin-left: auto;
  }

  .wi-navbar__action-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: none;
    border-radius: 9999px;
    background: transparent;
    color: var(--ink-2);
    cursor: pointer;
    transition:
      background var(--duration-fast) var(--ease-out-quart),
      color var(--duration-fast) var(--ease-out-quart);
  }

  .wi-navbar__action-btn:hover {
    background: var(--bg-raised);
    color: var(--ink);
  }

  .wi-navbar__action-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  .wi-navbar__menu-btn {
    display: none;
  }

  @media (max-width: 768px) {
    .wi-navbar-wrapper {
      padding: 0.5rem 0.75rem;
    }

    .wi-navbar__capsule {
      padding: 0 1rem;
    }

    .wi-navbar__nav {
      display: none;
    }

    .wi-navbar__action-btn {
      width: 40px;
      height: 40px;
    }

    .wi-navbar__menu-btn {
      display: inline-flex;
    }
  }
</style>