import { Disclosure, Menu, Transition } from '@headlessui/react'
import { Bars3Icon, XMarkIcon } from '@heroicons/react/24/outline'

import Link from 'next/link'
import GitHubButton from 'react-next-github-btn'

const navigation = [
  { name: 'Docs', href: '/docs' },
  { name: 'Components', href: '/docs/components' },
  { name: 'Learn', href: '/learn' },
  { name: 'Gallery', href: '/gallery' },
  { name: 'Data Literate', href: '/data-literate/', current: false },
  { name: 'DL Demo', href: '/data-literate/demo/', current: false },
  { name: 'Excel Viewer', href: '/excel-viewer/', current: false },
  { name: 'Github', href: 'https://github.com/datopian/portal.js', current: false },
]

function classNames(...classes) {
  return classes.filter(Boolean).join(' ')
}

export default function Nav() {
  return (
    <Disclosure as="nav" className="bg-gray-800">
      {({ open }) => (
        <>
          <div className="max-w-7xl mx-auto px-2 sm:px-6 lg:px-8">
            <div className="relative flex items-center justify-between h-16">
              <div className="absolute inset-y-0 left-0 flex items-center sm:hidden">
                {/* Mobile menu button*/}
                <Disclosure.Button className="inline-flex items-center justify-center p-2 rounded-md text-gray-400 hover:text-white hover:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-inset focus:ring-white">
                  <span className="sr-only">Open main menu</span>
                  {open ? (
                    <XMarkIcon className="block h-6 w-6" aria-hidden="true" />
                  ) : (
                    <Bars3Icon className="block h-6 w-6" aria-hidden="true" />
                  )}
                </Disclosure.Button>
              </div>
              <div className="flex-1 flex items-center justify-center sm:items-stretch sm:justify-start">
                <div className="flex-shrink-0 flex items-center">
                  <Link href="/" className="text-white"
                  >
                      Portal.JS
                  </Link>
                </div>
                <div className="hidden sm:block sm:ml-6">
                  <div className="flex space-x-4">
                    {navigation.map((item) => (
                      <Link href={item.href}
                        key={item.name}
                        className={classNames(
                          item.current ? 'bg-gray-900 text-white' : 'text-gray-300 hover:bg-gray-700 hover:text-white',
                          'px-3 py-2 rounded-md text-sm font-medium'
                        )}
                        aria-current={item.current ? 'page' : undefined}
                      >
                        {item.name}
                      </Link>
                    ))}
                  </div>
                </div>
              </div>
              <div className="mt-2 justify-end">
                  <GitHubButton href="https://github.com/datopian/portal.js" data-color-scheme="no-preference: light; light: light; dark: dark;" data-size="large" data-show-count="true" aria-label="Star datopian/portal.js on GitHub">Stars</GitHubButton>
                </div>
            </div>
          </div>

          <Disclosure.Panel className="sm:hidden">
            <div className="px-2 pt-2 pb-3 space-y-1">
              {navigation.map((item) => (
                <a
                  key={item.name}
                  href={item.href}
                  className={classNames(
                    item.current ? 'bg-gray-900 text-white' : 'text-gray-300 hover:bg-gray-700 hover:text-white',
                    'block px-3 py-2 rounded-md text-base font-medium'
                  )}
                  aria-current={item.current ? 'page' : undefined}
                >
                  {item.name}
                </a>
              ))}
            </div>
          </Disclosure.Panel>
        </>
      )}
    </Disclosure>
  )
}