import { useEffect, useState } from 'react'

export default function Home() {
  return <div>{Date.now()}</div>
}

import { useEffect, useState } from 'react'

export default function Home({ props: time }: { props: number }) {
  return <div>{time}</div>
}

export const getServerSideProps = async () => {
  return {
    props: Date.now(),
  }
}

import { Servertime } from './components/server-time'

export default function Home() {
  return <Servertime />
}

const HighLighter = lazy(() =>
  import('./components/shiki').then((mod) => ({
    default: mod.HighLighter,
  })),
)

export default function () {
  return (
    <div>
      <Suspense fallback={'loading code block..'}>
        <HighLighter content='const foo = "bar";' lang="ts" />
      </Suspense>
    </div>
  )
}

import { bundledLanguages, getHighlighter } from 'shiki'
import type { FC } from 'react'
import type {
  BundledLanguage,
  BundledTheme,
  CodeToHastOptions,
  HighlighterCore,
} from 'shiki'

function codeHighlighter(
  highlighter: HighlighterCore,
  {
    lang,
    attrs,
    code,
  }: {
    lang: string
    attrs: string
    code: string
  },
) {
  const codeOptions: CodeToHastOptions<BundledLanguage, BundledTheme> = {
    lang,
    meta: {
      __raw: attrs,
    },
    themes: {
      light: 'github-light',
      dark: 'github-dark',
    },
  }

  return highlighter.codeToHtml(code, {
    ...codeOptions,
    transformers: [...(codeOptions.transformers || [])],
  })
}

export const HighLighter: FC<{
  lang: string
  content: string
}> = async (props) => {
  const { lang: language, content: value } = props

  const highlighter = await getHighlighter({
    themes: [
      import('shiki/themes/github-light.mjs'),
      import('shiki/themes/github-dark.mjs'),
    ],
    langs: Object.keys(bundledLanguages),
  })

  return (
    <div
      dangerouslySetInnerHTML={{
        __html: codeHighlighter(highlighter, {
          attrs: '',
          code: value,
          lang: language || '',
        }),
      }}
    />
  )
}

export default () => {
  return <HighLighter content='const foo = "bar"' lang="ts" />
}