public async Task <OperationResult> UpdateRemoteMachinePriceTableAsync(Machine machine, IEnumerable <ProductRail> products)
{
//if (!IPAddress.TryParse(machine.IPEndPoint, out var ipAddr))
if (!IPEndPointHelper.TryParse(machine.IPEndPoint, out var ipAddr))
{
return(OperationResult.Failed(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.InvalidMachineIPEndPoint)));
}
var productsArr = products.ToArray();
using (var client = new TcpClient())
{
_logger.LogInformationIfEnabled(() => $"Connection to machine {machine}");
_logger.LogInformationIfEnabled(() => $"Openning TCP connection in {ipAddr.Address}:{MACHINE_TCP_PORT}");
await client.ConnectAsync(ipAddr.Address, MACHINE_TCP_PORT);
var stream = client.GetStream();
_logger.LogDebug("Got stream!");
var productsCount = productsArr.Length;
_logger.LogDebugIfEnabled(() => $"Sending {productsCount} products update.");
var data = new byte[OFFSET.PRODUCTS + (productsCount * PRODUCT_SIZE)];
data[OFFSET.INTENTION] = 0x02;
data[OFFSET.COUNT] = (byte)productsCount;
for (int i = 0; i < productsCount; i++)
{
var p = productsArr[i];
ToBytes(p).CopyTo(data, OFFSET.PRODUCTS + (i * PRODUCT_SIZE));
}
_logger.LogInformationIfEnabled(() => $"Awaiting...");
await Task.Delay(500);
_logger.LogTraceIfEnabled(() => $"Sending bulk update data: '{ByteHelper.ByteArrayToString(data)}'.");
stream.Write(data, 0, data.Length);
_logger.LogDebug("Ignoring response....");
// var buffer = new byte[255];
// var result = await stream.ReadAsync(buffer, 0, 255);
}
_logger.LogDebug("Returning OperationResult.Success.");
return(OperationResult.Success);
}
//TODO: Review floating points comparisons
public OperationResult Sale(SaleOperation sale)
{
var decimalPrice = new decimal(sale.Price);
var machine = _machineRepository.Get(sale.MachineId);
var client = _clientCardRepository.Get(sale.ClientCardId);
var products = _productRepository.GetMany(sale.ItemsId.Select(_ => (int)_)).ToList();
var errors = new List <OperationError>();
if (client == null)
{
errors.Add(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.ClientNotFound));
}
if (client != null && client.Credit < decimalPrice)
{
errors.Add(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.ClientWithNoEnoughCredit));
}
if (products.Count != sale.ItemsCount)
{
errors.Add(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.InvalidProduct));
}
if (products.Sum(_ => _.Price) != decimalPrice)
{
errors.Add(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.InvalidPrice));
}
if (products.Count != sale.ItemsCount)
{
errors.Add(OperationErrorFactory.FromWellKnowErrors(WellKnowErrors.InvalidProduct));
}
if (errors.Any())
{
return(OperationResult.Failed(errors.ToArray()));
}
DoTransaction(client, machine, products, decimalPrice);
return(OperationResult.Success);
}
