cfc/cfc-frontend/router/teacherGuard.js

// Teacher role route guard for Vue Router
// Import this guard in your router entry (e.g., src/router/index.js) and call `router.beforeEach(teacherGuard)`

export default function teacherGuard(to, from, next) {
  // Assume user role is stored in localStorage after login
  const role = localStorage.getItem('role');
  // List of routes that require teacher role (prefix /guide)
  const teacherOnly = to.path.startsWith('/guide');
  if (teacherOnly && role !== 'teacher') {
    // Redirect to a safe page, e.g., home or login
    return next({ path: '/', replace: true });
  }
  return next();
}