KnowledgeBase/server/src/auth/admin.guard.ts

import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
import { Observable } from 'rxjs';

@Injectable()
export class AdminGuard implements CanActivate {
  canActivate(
    context: ExecutionContext,
  ): boolean | Promise<boolean> | Observable<boolean> {
    const request = context.switchToHttp().getRequest();
    const user = request.user;

    // Check if user exists and has admin privileges
    return user && user.isAdmin === true;
  }
}