portfolio/src/components/Layout.jsx

import React, { PureComponent } from 'react'
import PropTypes from 'prop-types'
import posed, { PoseGroup } from 'react-pose'
import { StaticQuery, graphql } from 'gatsby'
import { fadeIn } from './atoms/Transitions'
import Typekit from './atoms/Typekit'
import HostnameCheck from './atoms/HostnameCheck'
import Header from './organisms/Header'
import Footer from './organisms/Footer'
import styles from './Layout.module.scss'

// if (process.env.NODE_ENV !== 'production') {
//   const { whyDidYouUpdate } = require('why-did-you-update')
//   whyDidYouUpdate(React)
// }

const query = graphql`
  query {
    metaYaml {
      allowedHosts
    }
  }
`

const timeout = 200
const RoutesContainer = posed.div(fadeIn)

export default class Layout extends PureComponent {
  static propTypes = {
    children: PropTypes.any.isRequired,
    location: PropTypes.shape({
      pathname: PropTypes.string.isRequired
    }).isRequired
  }

  render() {
    const { children, location } = this.props
    const isHomepage = location.pathname === '/'

    return (
      <StaticQuery
        query={query}
        render={data => {
          const { allowedHosts } = data.metaYaml

          return (
            <>
              <Typekit />
              <HostnameCheck allowedHosts={allowedHosts} />

              <PoseGroup animateOnMount={true}>
                <RoutesContainer
                  key={location.pathname}
                  delay={timeout}
                  delayChildren={timeout}
                >
                  <Header minimal={!isHomepage} />
                  <main className={styles.screen}>{children}</main>
                </RoutesContainer>
              </PoseGroup>

              <Footer />
            </>
          )
        }}
      />
    )
  }
}