import { Children } from 'react'
import getConfig from 'next/config'
import Document, { Html, Head, Main, NextScript } from 'next/document'
import { ServerStyleSheets } from '@material-ui/core/styles'
import theme from '../components/assets/theme'
const { publicRuntimeConfig } = getConfig()
const siteDescription: string = publicRuntimeConfig.siteDescription
export default class MyDocument extends Document {
render() {
return (
{/* PWA primary color */}
)
}
}
MyDocument.getInitialProps = async (ctx) => {
// Resolution order
//
// On the server:
// 1. app.getInitialProps
// 2. page.getInitialProps
// 3. document.getInitialProps
// 4. app.render
// 5. page.render
// 6. document.render
//
// On the server with error:
// 1. document.getInitialProps
// 2. app.render
// 3. page.render
// 4. document.render
//
// On the client
// 1. app.getInitialProps
// 2. page.getInitialProps
// 3. app.render
// 4. page.render
// Render app and page and get the context of the page with collected side effects.
const sheets = new ServerStyleSheets()
const originalRenderPage = ctx.renderPage
ctx.renderPage = () =>
originalRenderPage({
enhanceApp: (App) => (props) => sheets.collect()
})
const initialProps = await Document.getInitialProps(ctx)
return {
...initialProps,
// Styles fragment is rendered after the app and page rendering finish.
styles: [
...Children.toArray(initialProps.styles),
sheets.getStyleElement()
]
}
}