public async Task <IActionResult> RequestTokens([FromRoute] string address, [FromServices] WalletClient walletClient, [FromServices] IOptions <Configuration.Token> tokenOptions)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (Client.WalletAddress.Decode58Check(address) == null)
{
return(NotFound());
}
var result = new RequestTokensResult()
{
Result = RequestTokensResult.Type.MaximumReachedPerDay,
TransactionHash = null,
};
var ipAddress = HttpContext.Connection.RemoteIpAddress.ToString();
var receivedTokensToday = _context.UserReceivedTokens.Where(rt =>
(rt.Address == address || rt.Ip == ipAddress) &&
rt.CreatedAt.Date == DateTime.Today
).ToList();
var sumTokensReceivedToday = receivedTokensToday.Sum(rt => rt.ReceivedTokens);
if (sumTokensReceivedToday < tokenOptions.Value.TransferMaxPerAccountEveryDay)
{
try
{
var userAccount = await walletClient.GetAddressInformation(address);
var asset = userAccount.AssetV2.SingleOrDefault(a => a.Key.Equals(tokenOptions.Value.Id, StringComparison.CurrentCultureIgnoreCase));
if (asset.Key == null || asset.Value <= tokenOptions.Value.TransferOnlyWhenHasLessOrEqualThan)
{
var canReceiveToday = (tokenOptions.Value.TransferMaxPerAccountEveryDay - sumTokensReceivedToday);
var amount = (canReceiveToday <= tokenOptions.Value.TransferSteps
? canReceiveToday
: tokenOptions.Value.TransferSteps
);
var transferResult = await walletClient.TransferTokenFromProperty(amount, address);
if (transferResult.Result)
{
var transactionHash = Common.Utils
.ToHexString(Crypto.Sha256.Hash(transferResult.Transaction.RawData.ToByteArray()))
.ToLower();
result.TransactionHash = transactionHash;
result.Result = RequestTokensResult.Type.Transferred;
_context.UserReceivedTokens.Add(new UserReceivedToken()
{
Address = address,
Ip = ipAddress,
ReceivedTokens = amount,
CreatedAt = DateTime.UtcNow,
});
_context.SaveChanges();
}
else
{
result.Result = RequestTokensResult.Type.ServerError;
}
}
else
{
result.Result = RequestTokensResult.Type.HasEnough;
}
}
catch (RpcException e)
{
result.Result = RequestTokensResult.Type.ServerError;
_logger.LogError("Couldn't transfer tokens to {Receiver}! Error:", address);
_logger.LogError(e.Message);
_logger.LogError(e.StackTrace);
}
catch (DbUpdateException e)
{
_logger.LogError("Couldn't save the userReceivedToken in Database! Error:");
_logger.LogError(e.Message);
_logger.LogError(e.StackTrace);
}
}
return(Ok(result));
}