import { Mainnet } from '@usedapp/core/modal/chain/ethereum'
import { useEthers, useEtherBalance } from '@usedapp/core'

const config = {
  readOnlyChainId: Mainnet.chainId,
  readOnlyUrls: {
    [Mainnet.chainId]: 'https://mainnet.infura.io/v3/62687d1a985d4508b2b7a24827551934',
  },
}

ReactDOM.render(
  <DAppProvider config={config}>
    <App />
  </DAppProvider>,
  document.getElementById('root')
)

const STAKING_CONTRACT = '0x00000000219ab540356cBB839Cbe05303d7705Fa'

export function App() {
  const { activateBrowserWallet, deactivate, account } = useEthers()
  const userBalance = useEtherBalance(account)
  const stakingBalance = useEtherBalance(STAKING_CONTRACT)

  return (
    <div>
      {!account && <button onClick={activateBrowserWallet}> Connect </button>}
      {account && <button onClick={deactivate}> Disconnect </button>}
      {stakingBalance && <p>ETH2 staking balance: {formatEther(stakingBalance)} ETH </p>}
      {account && <p>Account: {account}</p>}
      {userBalance && <p>Ether balance: {formatEther(userBalance)} ETH </p>}
    </div>
  )
}