public async Task <CommandResponse <Order> > ExecuteAsync(CreateOrderCommand command, CommandResponse <Order> previousResult)
{
ShoppingCart.Model.ShoppingCart cart = (await _dispatcher.DispatchAsync(new GetCartQuery {
AuthenticatedUserId = command.AuthenticatedUserId
})).Result;
if (cart.Items.Count == 0)
{
return(CommandResponse <Order> .WithError("Shopping cart must not be empty to checkout"));
}
Order order = new Order
{
Id = Guid.NewGuid(),
CreatedAtUtc = DateTime.UtcNow,
OrderItems = cart.Items.Select(x => new OrderItem
{
Name = x.Product.Name,
Price = x.Product.Price,
ProductId = x.Product.Id,
Quantity = x.Quantity
}).ToArray(),
PaymentMade = false,
PercentageDiscountApplied = 10.0,
UserId = command.AuthenticatedUserId
};
order.Total = order.OrderItems.Sum(i => i.Price * i.Quantity) * (100 - order.PercentageDiscountApplied) / 100.0;
await _repository.CreateAsync(order);
return(CommandResponse <Order> .Ok(order));
}
public double calculateFor(Cart shoppingCart)
{
var cartItems = shoppingCart.getShoppingCartItems();
var products = cartItems.Select(x => x.getProduct()).ToList();
double numberOfDeliveries = products.GroupBy(x => x.getCategory(), (key, group) => group.ToList()).Count();
double numberOfProducts = products.Count;
return((CostPerDelivery * numberOfDeliveries) + (CostPerProduct * numberOfProducts) + FixedCost);
}
public async Task <CommandResponse <Order> > ExecuteAsync(CreateOrderCommand command, CommandResponse <Order> previousResult)
{
_logger.LogInformation("Creating order for user {0} from basket", command.AuthenticatedUserId);
try
{
ShoppingCart.Model.ShoppingCart cart = (await _dispatcher.DispatchAsync(new GetCartQuery {
AuthenticatedUserId = command.AuthenticatedUserId
})).Result;
if (cart.Items.Count == 0)
{
return(new CommandResponse <Order> {
ErrorMessage = "Shopping cart must not be empty to checkout", IsSuccess = false
});
}
Order order = new Order
{
Id = Guid.NewGuid(),
CreatedAtUtc = DateTime.UtcNow,
OrderItems = cart.Items.Select(x => new OrderItem
{
Name = x.Product.Name,
Price = x.Product.Price,
ProductId = x.Product.Id,
Quantity = x.Quantity
}).ToArray(),
PaymentMade = false,
PercentageDiscountApplied = 10.0,
UserId = command.AuthenticatedUserId
};
order.Total = order.OrderItems.Sum(i => i.Price * i.Quantity) * (100 - order.PercentageDiscountApplied) / 100.0;
await _repository.CreateAsync(order);
_logger.LogInformation("Created order for user {0} from basket", command.AuthenticatedUserId);
return(CommandResponse <Order> .Ok(order));
}
catch (Exception ex)
{
_logger.LogError(ex, "Unable to create order for user {0}", command.AuthenticatedUserId);
throw new CheckoutException($"Unable to create order for user {command.AuthenticatedUserId}");
}
}
