/**
 * RailwaySystem - Visual Portal Common Interactive Engine v2.0
 * 纯静态 · 离线友好 · 零网络 CDN 依赖
 */

const GITLAB_DOCS_BASE = "http://192.168.139.218:9980/sict/railwaysystem/-/blob/feat/cicd-pipeline/";

document.addEventListener('DOMContentLoaded', () => {
  // 1. 导航栏高亮当前页面
  const currentPath = window.location.pathname.split('/').pop() || 'index.html';
  document.querySelectorAll('.nav-link, .dropdown-item a').forEach(link => {
    const href = link.getAttribute('href');
    if (href === currentPath || (currentPath === '' && href === 'index.html')) {
      link.classList.add('active');
    }
  });

  // 2. 文档跳转拦截与 GitLab 自动重定向保护
  document.querySelectorAll('a').forEach(anchor => {
    const href = anchor.getAttribute('href');
    if (href && href.includes('.md')) {
      anchor.setAttribute('target', '_blank');
      anchor.setAttribute('rel', 'noopener noreferrer');
      // 如果仍有相对路径，自动转换为 GitLab 远程在线路径
      if (!href.startsWith('http://') && !href.startsWith('https://')) {
        let cleanRel = href.replace(/^(\.\.\/)+/, '');
        if (!cleanRel.startsWith('docs/')) {
          cleanRel = 'docs/' + cleanRel;
        }
        anchor.setAttribute('href', GITLAB_DOCS_BASE + cleanRel);
      }
    }
  });

  // 3. 抽屉 (Drawer) 机制
  const drawerBackdrop = document.getElementById('drawer-backdrop');
  const drawerCloseBtn = document.getElementById('drawer-close-btn');

  window.openDrawer = function(title, contentHtml) {
    const drawerTitle = document.getElementById('drawer-title');
    const drawerBody = document.getElementById('drawer-body');
    if (drawerTitle) drawerTitle.textContent = title;
    if (drawerBody) drawerBody.innerHTML = contentHtml;
    if (drawerBackdrop) {
      drawerBackdrop.classList.add('active');
      document.body.style.overflow = 'hidden';
    }
  };

  window.closeDrawer = function() {
    if (drawerBackdrop) {
      drawerBackdrop.classList.remove('active');
      document.body.style.overflow = '';
    }
  };

  if (drawerCloseBtn) {
    drawerCloseBtn.addEventListener('click', window.closeDrawer);
  }

  if (drawerBackdrop) {
    drawerBackdrop.addEventListener('click', (e) => {
      if (e.target === drawerBackdrop) {
        window.closeDrawer();
      }
    });
  }

  // ESC 键关闭抽屉或弹窗
  document.addEventListener('keydown', (e) => {
    if (e.key === 'Escape') {
      window.closeDrawer();
      window.closeModal && window.closeModal();
    }
  });

  // 4. 手风琴折叠面板 (Accordion)
  document.querySelectorAll('.accordion-header').forEach(header => {
    header.addEventListener('click', () => {
      const item = header.closest('.accordion-item');
      if (item) {
        item.classList.toggle('open');
      }
    });
  });

  // 5. 选项卡 (Tabs) 切换
  document.querySelectorAll('.tab-trigger').forEach(tab => {
    tab.addEventListener('click', () => {
      const tabGroup = tab.getAttribute('data-tab-group');
      const targetId = tab.getAttribute('data-target');

      // 切换触发器状态
      document.querySelectorAll(`.tab-trigger[data-tab-group="${tabGroup}"]`).forEach(t => t.classList.remove('active'));
      tab.classList.add('active');

      // 切换内容面板
      document.querySelectorAll(`.tab-panel[data-tab-group="${tabGroup}"]`).forEach(p => p.style.display = 'none');
      const targetPanel = document.getElementById(targetId);
      if (targetPanel) {
        targetPanel.style.display = 'block';
      }
    });
  });
});