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import React from 'react'
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import Head from 'next/head'
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import { THEMES, THEMES_HASH } from '../lib/constants'
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import Reset from './style/Reset'
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import Font from './style/Font'
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import Typography from './style/Typography'
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const HIGHLIGHTS_ONLY = ['shades-of-purple', 'vscode']
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const LOCAL_STYLESHEETS = ['one-light', 'one-dark', 'verminal', 'night-owl', 'nord']
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const CDN_STYLESHEETS = THEMES.filter(
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t => LOCAL_STYLESHEETS.indexOf(t.id) < 0 && HIGHLIGHTS_ONLY.indexOf(t.id) < -1
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)
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export function Link({ href }) {
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return (
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<Head>
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<link rel="preload" as="style" href={href} />
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<link rel="stylesheet" href={href} />
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</Head>
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)
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}
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export const StylesheetLink = ({ theme }) => {
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let href
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if (LOCAL_STYLESHEETS.indexOf(theme) > -1) {
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href = `/static/themes/${theme}.css`
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} else {
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const themeDef = THEMES_HASH[theme]
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href = `//cdnjs.cloudflare.com/ajax/libs/codemirror/5.42.2/theme/${themeDef &&
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(themeDef.link || themeDef.id)}.min.css`
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}
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return <Link href={href} />
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}
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export const CodeMirrorLink = () => (
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<Link href="//cdnjs.cloudflare.com/ajax/libs/codemirror/5.42.2/codemirror.min.css" />
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)
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const title = 'Carbon'
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const description =
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'Carbon is the easiest way to create and share beautiful images of your source code.'
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export const MetaTags = React.memo(() => (
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<Head>
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<meta charSet="utf-8" />
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<meta httpEquiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<meta name="description" content={description} />
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<meta name="application-name" content={title} />
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<meta name="twitter:title" content={title} />
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<meta name="twitter:description" content={description} />
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<meta name="og:title" content={title} />
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<meta name="og:description" content={description} />
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<meta name="og:image" content="/static/banner.png" />
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<meta name="theme-color" content="#121212" />
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<title>{title}</title>
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<link rel="shortcut icon" href="/static/favicon.ico" />
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<link rel="manifest" href="/static/manifest.json" />
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</Head>
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))
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export const MetaLinks = React.memo(() => {
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return (
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<React.Fragment>
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<Link href="//cdnjs.cloudflare.com/ajax/libs/codemirror/5.42.2/theme/seti.min.css" />
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<CodeMirrorLink />
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{LOCAL_STYLESHEETS.map(id => (
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<Link key={id} href={`/static/themes/${id}.css`} />
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))}
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{CDN_STYLESHEETS.map(themeDef => {
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const href = `//cdnjs.cloudflare.com/ajax/libs/codemirror/5.42.2/theme/${themeDef &&
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(themeDef.link || themeDef.id)}.min.css`
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return <Link key={themeDef.id} href={href} />
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})}
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</React.Fragment>
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)
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})
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export default React.memo(function Meta() {
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return (
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<React.Fragment>
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<MetaTags />
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<Reset />
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<Font />
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<Typography />
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</React.Fragment>
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)
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})
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