public async Task UpdateAccountsAmount(AccountUpdateModel accountUpdateModel)
{
var transactionMessageModel = new TransactionMessageModel
{
TransactionId = accountUpdateModel.TransactionId,
SenderAccountId = accountUpdateModel.SenderAccountId,
ReceiverAccountId = accountUpdateModel.ReceiverAccountId,
Amount = accountUpdateModel.Amount
};
if (await IsTransactionPermitted(accountUpdateModel))
{
try
{
var senderAccount = await _mediator.Send(
new GetAccountByIdQuery(accountUpdateModel.SenderAccountId)
);
var receiverAccount = await _mediator.Send(
new GetAccountByIdQuery(accountUpdateModel.ReceiverAccountId)
);
if (senderAccount != null && receiverAccount != null)
{
if (senderAccount.Amount >= accountUpdateModel.Amount)
{
senderAccount.Amount -= accountUpdateModel.Amount;
receiverAccount.Amount += accountUpdateModel.Amount;
await _mediator.Send(new UpdateAccountCommand(senderAccount.Id, senderAccount));
await _mediator.Send(new UpdateAccountCommand(receiverAccount.Id, receiverAccount));
transactionMessageModel.Status = "Finished";
transactionMessageModel.Info = "The transaction was successful";
_transactionUpdateSender.UpdateTransaction(transactionMessageModel);
}
else
{
transactionMessageModel.Status = "Failed";
transactionMessageModel.Info = "The account balance is too low";
_transactionUpdateSender.UpdateTransaction(transactionMessageModel);
}
}
}
catch (Exception ex)
{
transactionMessageModel.Status = "Failed";
transactionMessageModel.Info = "Account number not found. The operation has failed";
_transactionUpdateSender.UpdateTransaction(transactionMessageModel);
}
}
else
{
transactionMessageModel.Status = "Failed";
transactionMessageModel.Info = "Operation prohibited";
_transactionUpdateSender.UpdateTransaction(transactionMessageModel);
}
}
public void SendTransaction(TransactionMessageModel transaction)
{
var factory = new ConnectionFactory()
{
HostName = _hostname, UserName = _username, Password = _password
};
using var connection = factory.CreateConnection();
using (var channel = connection.CreateModel())
{
channel.QueueDeclare(queue: _queueName, durable: false, exclusive: false, autoDelete: false, arguments: null);
var json = JsonConvert.SerializeObject(transaction);
var body = Encoding.UTF8.GetBytes(json);
channel.BasicPublish(exchange: "", routingKey: _queueName, basicProperties: null, body: body);
}
}
