NotionNext/themes/nav/components/MenuItem.js

import Link from 'next/link'
import { useState } from 'react'
import Collapse from './Collapse'

/**
 * 菜单
 * @param {} param0
 * @returns
 */
export const MenuItem = ({ link }) => {
  link.selected = true

  const [isOpen, changeIsOpen] = useState(link?.selected)

  const toggleOpenSubMenu = () => {
    changeIsOpen(!isOpen)
  }

  if (!link || !link.show) {
    return null
  }

  return <>
        {/* 菜单 */}
        <div
            onClick={toggleOpenSubMenu}
            className='nav-menu dark:text-neutral-400 text-gray-500 hover:text-black dark:hover:text-white text-sm text-gray w-full items-center duration-300 pt-2 font-light select-none flex justify-between cursor-pointer' key={link?.name}>

            {link?.subMenus
              ? (<>
                    <span className='dark:text-neutral-400 dark:hover:text-white font-bold w-full display-block'>
                        {link?.icon && <i className={`text-base ${link?.icon}`} />}{link?.title}
                    </span>
                    <div className='inline-flex items-center select-none pointer-events-none '>
                        <i className={`${isOpen ? '-rotate-90' : ''} text-xs dark:text-neutral-500 text-gray-300 hover:text-black dark:hover:text-white-400 px-2 fas fa-chevron-left transition-all duration-200`}></i>
                    </div>
                </>)
              : (
                    <Link href={link?.to} className='dark:text-neutral-400 dark:hover:text-white font-bold w-full display-block'>
                        {link?.icon && <i className={`text-base ${link?.icon}`} />}{link?.title}
                    </Link>
                )

            }
        </div>

        {/* 菜单按钮 */}
        {link?.subMenus && (
            <Collapse isOpen={isOpen} key='collapse'>
                {
                    link?.subMenus?.map((sLink, index) => (
                        <div key={index} className='nav-submenu'>
                            <a href={sLink?.to}>
                                <span className='dark:text-neutral-400 text-gray-500 hover:text-black dark:hover:text-white text-xs font-bold'><i className={`text-xs mr-1 ${sLink?.icon ? sLink?.icon : 'fas fa-hashtag'}`} />{sLink.title}</span>
                            </a>
                        </div>
                    ))
                }

            </Collapse>
        )}

    </>
}