withdrawGasLimit function

Future<BigInt> withdrawGasLimit(double amount, String fromEthereumAddress, String? accountIndex, Token token, String babyJubJub, int batchNumber, List<BigInt> merkleSiblings, { bool isInstant = true, })

Implementation

Future<BigInt> withdrawGasLimit(
    double amount,
    String fromEthereumAddress,
    String? accountIndex,
    Token token,
    String babyJubJub,
    int batchNumber,
    List<BigInt> merkleSiblings,
    {bool isInstant = true}) async {
  final hermezContract = await ContractParser.fromAssets('HermezABI.json',
      getCurrentEnvironment()!.contracts['Hermez']!, "Hermez");

  BigInt withdrawMaxGas = BigInt.zero;
  EthereumAddress from =
      EthereumAddress.fromHex(getEthereumAddress(fromEthereumAddress)!);
  EthereumAddress to =
      EthereumAddress.fromHex(getCurrentEnvironment()!.contracts['Hermez']!);
  EtherAmount value = EtherAmount.zero();
  Uint8List? data;

  final transactionParameters = [
    BigInt.from(token.id!),
    BigInt.from(amount),
    hexToInt(babyJubJub),
    BigInt.from(batchNumber),
    merkleSiblings,
    BigInt.from(getAccountIndex(accountIndex)),
    isInstant,
  ];

  print(transactionParameters);

  Transaction transaction = Transaction.callContract(
      contract: hermezContract,
      function: _withdrawMerkleProof(hermezContract),
      parameters: transactionParameters);

  data = transaction.data;

  // TODO: FIX ESTIMATE GAS

  /*try {
    withdrawMaxGas = await web3client.estimateGas(
        sender: from, to: to, value: value, data: data);
  } catch (e) {*/
  // DEFAULT WITHDRAW: 230K + Transfer + (siblings.length * 31K)
  withdrawMaxGas = BigInt.from(GAS_LIMIT_WITHDRAW_DEFAULT);
  if (token.id != 0) {
    withdrawMaxGas += await transferGasLimit(BigInt.from(amount), 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;
}