public async Task <LendBasketCommandResult> Handle(LendBasketCommand request, CancellationToken cancellationToken)
{
if (!_cache.TryGetValue(request.EmployeeName, out Basket basket))
{
return(new LendBasketCommandResult(false, new List <string>()
{
"Basket not exists"
}));
}
if (basket.Customer is null)
{
return(new LendBasketCommandResult(false, new List <string>()
{
"Customer is required for lend basket"
}));
}
if (!basket.StockWithBooks.Any())
{
return(new LendBasketCommandResult(false, new List <string>()
{
"Stocks are required for lend basket"
}));
}
//TODO check if customer exists
var customerMessageResponse = await _customerClient.GetResponse <CustomerInfoResult>(
new { Email = basket.Customer.Email.EmailAddress }, cancellationToken);
if (customerMessageResponse.Message.Customer is null)
{
return(new LendBasketCommandResult(false,
new List <string>()
{
$"Customer with email {basket.Customer.Email.EmailAddress} not exist"
}));
}
//TODO check if all stocks exists
var stockMessageResponse = await _stockClient.GetResponse <StocksExistanceResult>(new
{
StocksIds = basket.StockWithBooks.Select(s => s.StockId).ToList()
});
if (!stockMessageResponse.Message.IsAllExists)
{
return(new LendBasketCommandResult(false, new List <string>()
{
"Not all Stocks exists in system"
}));
}
var stocksInBasket = basket.StockWithBooks.Select(s => s.StockId).ToList();
var borrowedStocks = (await _lendedBasketRepository.GetAllByStocksIds(stocksInBasket)).ToList();
if (borrowedStocks.Any())
{
return(new LendBasketCommandResult(false,
new List <string>()
{
$"Stocks:{string.Join(",", borrowedStocks.Select(s => s.Stocks))} are already borrowed by someone"
}));
}
var check = await CheckIfCustomerAndBasketMatchAllStrategies(basket);
if (!check.Item1)
{
return(new LendBasketCommandResult(false, new List <string>()
{
check.Item2.FirstOrDefault()
}));
}
var lendedBasket = new LendedBasket(basket, _intStrategies, _booleanStrategies);
_lendedBasketRepository.Add(lendedBasket);
if (await _lendedBasketRepository.UnitOfWork.SaveChangesAsync(cancellationToken) < 0)
{
return(new LendBasketCommandResult(false, new List <string>()
{
"Something went wrong during saving"
}));
}
_cache.Remove(request.EmployeeName);
return(new LendBasketCommandResult(true));
}
public LendedBasket Add(LendedBasket lendedBasket)
{
return(_lendDbContext.LendedBaskets.Add(lendedBasket).Entity);
}
