import React from 'react'
import Link from 'next/link'
import { useRouter } from 'next/router'

export async function getServerSideProps({ query: { port } }) {
  if (!port) {
    throw new Error('port required')
  }
  return { props: { port } }
}

export default function Page({ port }) {
  const router = useRouter()
  const [hover, setHover] = React.useState(false)

  return (
    <>
      <Link href="https://vercel.com/" id="absolute-link">
        https://vercel.com/
      </Link>
      <br />
      <button
        id="router-push"
        onClick={() => router.push('https://vercel.com/')}
      >
        push https://vercel.com/
      </button>
      <br />
      <button
        id="router-replace"
        onClick={() => router.replace('https://vercel.com/')}
      >
        replace https://vercel.com/
      </button>
      <br />
      <Link
        href={`http://localhost:${port}/nav/about`}
        id="absolute-local-link"
      >
        http://localhost:{port}/nav/about
      </Link>
      <br />
      <Link
        href={`http://localhost:${port}/dynamic/[slug]/route`}
        as={`http://localhost:${port}/dynamic/hello/route`}
        id="absolute-local-dynamic-link"
      >
        http://localhost:{port}/dynamic/hello/route
      </Link>
      <br />
      <button
        id="router-local-push"
        onClick={() => router.push(`http://localhost:${port}/nav/about`)}
      >
        push http://localhost:{port}/nav/about
      </button>
      <br />
      <button
        id="router-local-replace"
        onClick={() => router.replace(`http://localhost:${port}/nav/about`)}
      >
        replace http://localhost:{port}/nav/about
      </button>
      <br />
      <Link href="mailto:idk@idk.com" id="mailto-link">
        mailto:idk@idk.com
      </Link>
      <br />
      <Link
        href="https://vercel.com/"
        id="absolute-link-mouse-events"
        data-hover={hover}
        onMouseEnter={() => setHover(true)}
        onMouseLeave={() => setHover(false)}
      >
        https://vercel.com/
      </Link>
    </>
  )
}