import { CollateralBridge } from '@vegaprotocol/smart-contracts';
import { useWeb3React } from '@web3-react/core';
import { useMemo } from 'react';
import { useEthereumConfig } from './use-ethereum-config';

export const useBridgeContract = () => {
  const { provider } = useWeb3React();
  const { config } = useEthereumConfig();

  const contract = useMemo(() => {
    if (!provider || !config) {
      return null;
    }

    const signer = provider.getSigner();

    return new CollateralBridge(
      config.collateral_bridge_contract.address,
      signer || provider
    );
  }, [provider, config]);

  return contract;
};