delayedWithdrawGasLimit function

Future<BigInt> delayedWithdrawGasLimit(String fromEthereumAddress, Token token)

Implementation

Future<BigInt> delayedWithdrawGasLimit(
    String fromEthereumAddress, Token token) async {
  BigInt withdrawMaxGas = BigInt.zero;
  EthereumAddress from =
      EthereumAddress.fromHex(getEthereumAddress(fromEthereumAddress)!);
  EthereumAddress to = EthereumAddress.fromHex(
      getCurrentEnvironment()!.contracts[ContractName.withdrawalDelayer]!);
  EtherAmount value = EtherAmount.zero();
  Uint8List? data;

  final withdrawalDelayerContract = await ContractParser.fromAssets(
      'WithdrawalDelayerABI.json',
      getCurrentEnvironment()!.contracts[ContractName.withdrawalDelayer]!,
      ContractName.withdrawalDelayer);

  final transactionParameters = [
    from,
    token.id == 0 ? 0x0 : EthereumAddress.fromHex(token.ethereumAddress!)
  ];

  Transaction transaction = Transaction.callContract(
      contract: withdrawalDelayerContract,
      function: _withdrawal(withdrawalDelayerContract),
      parameters: transactionParameters);

  data = transaction.data;

  try {
    withdrawMaxGas = await HermezSDK.currentWeb3Client!
        .estimateGas(sender: from, to: to, value: value, data: data);
  } catch (e) {
    // DEFAULT DELAYED WITHDRAW: ???? 230K + Transfer + (siblings.length * 31K)
    withdrawMaxGas = BigInt.from(GAS_LIMIT_WITHDRAW_DEFAULT);
    if (token.id != 0) {
      withdrawMaxGas += await transferGasLimit(
          value.getInWei, to.hex, from.hex, token.ethereumAddress, token.name);
    }
    //withdrawMaxGas += BigInt.from(GAS_LIMIT_WITHDRAW_SIBLING * merkleSiblings.length);
  }
  withdrawMaxGas += BigInt.from(GAS_LIMIT_OFFSET);
  withdrawMaxGas =
      BigInt.from((withdrawMaxGas.toInt() / pow(10, 3)).floor() * pow(10, 3));

  return withdrawMaxGas;
}