public async Task <TimestampDao> GenerateTimestamp(TimestampDao timestamp, CancellationToken cancellationToken)
{
Guard.Argument(timestamp, nameof(timestamp)).NotNull();
Guard.Argument(timestamp.UserId, nameof(timestamp.UserId)).NotNull().NotEmpty().NotWhiteSpace();
var user = await _userRepository.GetUserById(timestamp.UserId, cancellationToken);
if (user == null)
{
var message = $"Unable to find the user with user identifier '{timestamp.UserId}'.";
_logger.Error(message);
throw new UserException(message);
}
if (user.RemainingTimeStamps < 1)
{
var message = $"Not sufficient stamps left for the user '{user.Id}' with price plan '{user.CurrentPricePlanId}'.";
_logger.Error(message);
throw new TimestampException(message);
}
var pricePlan = await _pricePlanRepository.GetPricePlanById(user.CurrentPricePlanId, cancellationToken);
if (pricePlan == null)
{
var message = $"Unable to find the current price plan with user identifier '{user.CurrentPricePlanId}' for an user '{user.Id}'.";
_logger.Error(message);
throw new UserException(message);
}
try
{
await SendTransaction(timestamp, pricePlan.GasPrice, pricePlan.Price <= 0, cancellationToken);
var newTimestamp = await _timestampRepository.CreateTimestamp(timestamp, cancellationToken);
await _timestampQueueService.AddTimestampMessage(new TimestampQueueMessage { TimestampId = newTimestamp.Id, TransactionId = newTimestamp.TransactionId, Created = DateTime.UtcNow, IsPremiumPlan = pricePlan.Price > 0 }, cancellationToken);
user.RemainingTimeStamps--;
await _userRepository.UpdateUser(user, cancellationToken);
_logger.Information($"Successfully created time stamp for user '{user.Id}' with transaction '{newTimestamp.TransactionId}'");
return(newTimestamp);
}
catch (TimestampException ex)
{
_logger.Error(ex.Message);
throw ex;
}
catch (RpcClientUnknownException ex)
{
var message = $"{nameof(RpcClientUnknownException)} : {ex.Message}";
_logger.Error(message);
throw new RpcClientException(message);
}
catch (RpcClientTimeoutException ex)
{
var message = $"{nameof(RpcClientTimeoutException)} : {ex.Message}";
_logger.Error(message);
throw new RpcClientException(message);
}
catch (RpcClientNonceException ex)
{
var message = $"{nameof(RpcClientNonceException)} : {ex.Message}";
_logger.Error(message);
throw new RpcClientException(message);
}
catch (RpcClientUnderpricedException ex)
{
var message = $"{nameof(RpcClientUnderpricedException)} : {ex.Message}";
_logger.Error(message);
throw new RpcClientException(message);
}
}