blowfish/src/screens/Home.jsx

import React, { PureComponent } from 'react'
import { Link } from '@reach/router'
import { Consumer } from '../store/createContext'
import Total from '../components/Total'
import Account from '../components/Account'
import Ticker from '../components/Ticker'
import Spinner from '../components/Spinner'
import './Home.css'

export default class Home extends PureComponent {
  render() {
    return (
      <Consumer>
        {({ isLoading, accounts, needsConfig }) => (
          <>
            <Link to="preferences">Settings</Link>
            <main className="main">
              {needsConfig ? (
                'Needs config'
              ) : isLoading ? (
                <Spinner />
              ) : (
                <>
                  <Total />

                  <div className="number-unit-wrap number-unit-wrap--accounts">
                    {accounts.map((account, i) => (
                      <Account key={i} account={account} />
                    ))}
                  </div>
                </>
              )}
            </main>

            <Ticker style={isLoading ? { opacity: 0 } : null} />
          </>
        )}
      </Consumer>
    )
  }
}