/// <param name="depositContractAddress"></param>
/// <param name="erc20TokenAddress"></param>
/// <param name="destinationAddress"></param>
/// <returns>TransactionHash</returns>
public async Task <string> RecievePaymentFromDepositContract(string depositContractAddress,
string erc20TokenAddress, string destinationAddress)
{
var depositContract = await _contractRepository.GetByContractAddress(depositContractAddress);
if (depositContract == null)
{
throw new ClientSideException(ExceptionType.WrongParams, $"DepositContractAddress {depositContractAddress} does not exist");
}
var userWallet = await TransferWalletSharedService.GetUserTransferWalletAsync(_userTransferWalletRepository,
depositContractAddress, erc20TokenAddress, depositContract.UserAddress);
if (userWallet != null && !string.IsNullOrEmpty(userWallet.LastBalance))
{
throw new ClientSideException(ExceptionType.TransferInProcessing, $"Transfer from {depositContractAddress} was started before wait for it to complete");
}
var balance = await _ercInterfaceService.GetBalanceForExternalTokenAsync(depositContractAddress, erc20TokenAddress);
if (balance == 0)
{
throw new ClientSideException(ExceptionType.NotEnoughFunds, $"No tokens detected at deposit address {depositContractAddress}");
}
var guidStr = Guid.NewGuid().ToString();
var message = new Lykke.Service.EthereumCore.Core.Messages.LykkePay.LykkePayErc20TransferMessage()
{
OperationId = guidStr
};
var existingOperation = await _operationsRepository.GetAsync(guidStr);
if (existingOperation != null)
{
throw new ClientSideException(ExceptionType.EntityAlreadyExists, "Try again later");
}
var transactionSenderAddress = _appSettings.LykkePay.LykkePayAddress;
var estimationResult = await Erc20SharedService.EstimateDepositTransferAsync(_web3,
_settings.Erc20DepositContract.Abi,
transactionSenderAddress,
depositContractAddress,
erc20TokenAddress,
destinationAddress);
if (!estimationResult)
{
throw new ClientSideException(ExceptionType.WrongDestination, $"Can't estimate transfer {depositContractAddress}, {erc20TokenAddress}, {destinationAddress}");
}
await _operationsRepository.SaveAsync(new HotWalletOperation()
{
Amount = balance,
FromAddress = depositContractAddress,
OperationId = guidStr,
OperationType = HotWalletOperationType.Cashin,
ToAddress = destinationAddress,
TokenAddress = erc20TokenAddress
});
await _transferQueue.PutRawMessageAsync(Newtonsoft.Json.JsonConvert.SerializeObject(message));
await TransferWalletSharedService.UpdateUserTransferWalletAsync(_userTransferWalletRepository,
depositContractAddress, erc20TokenAddress, depositContract.UserAddress, balance.ToString());
return(guidStr);
}
/// <param name="depositContractAddress"></param>
/// <param name="erc20TokenAddress"></param>
/// <param name="destinationAddress"></param>
/// <returns>TransactionHash</returns>
public async Task <string> RecievePaymentFromDepositContractAsync(string depositContractAddress,
string erc20TokenAddress, string destinationAddress, string tokenAmount)
{
var depositContract = await _contractRepository.GetByContractAddress(depositContractAddress);
if (depositContract == null)
{
throw new ClientSideException(ExceptionType.WrongParams, $"DepositContractAddress {depositContractAddress} does not exist");
}
var amount = System.Numerics.BigInteger.Parse(tokenAmount);
var balance = await _ercInterfaceService.GetBalanceForExternalTokenAsync(depositContractAddress, erc20TokenAddress);
if (balance == 0 || amount > balance)
{
throw new ClientSideException(ExceptionType.NotEnoughFunds,
$"Not enough tokens to proceed with withdrawal detected at deposit address {depositContractAddress}. " +
$"Current balance: {balance}");
}
var guidStr = Guid.NewGuid().ToString();
var message = new Lykke.Service.EthereumCore.Core.Messages.LykkePay.LykkePayErc20TransferMessage()
{
OperationId = guidStr
};
var existingOperation = await _operationsRepository.GetAsync(guidStr);
if (existingOperation != null)
{
throw new ClientSideException(ExceptionType.EntityAlreadyExists, "Try again later");
}
var transactionSenderAddress = _appSettings.Airlines.AirlinesAddress;
var estimationResult = await Erc223SharedService.EstimateDepositTransferAsync(_web3,
_appSettings.EthereumCore.Erc223DepositContract.Abi,
transactionSenderAddress,
depositContractAddress,
erc20TokenAddress,
destinationAddress,
amount);
if (!estimationResult)
{
throw new ClientSideException(ExceptionType.WrongDestination, $"Can't estimate transfer {depositContractAddress}, {erc20TokenAddress}, {destinationAddress}");
}
await _operationsRepository.SaveAsync(new HotWalletOperation()
{
Amount = amount,
FromAddress = depositContractAddress,
OperationId = guidStr,
OperationType = HotWalletOperationType.Cashin,
ToAddress = destinationAddress,
TokenAddress = erc20TokenAddress
});
await _transferQueue.PutRawMessageAsync(Newtonsoft.Json.JsonConvert.SerializeObject(message));
return(guidStr);
}
