public HttpResponseMessage Post(BasketItem item)
{
if (Cart.Items.Any(i => i.ProductId == item.ProductId))
return Request.CreateErrorResponse(HttpStatusCode.Conflict,
"Product " + item.ProductId +
" already in cart, please update quantity to increase number of items");
var product = ProductsRepository.Products.FirstOrDefault(p => p.Id == item.ProductId);
if (product == null)
return Request.CreateErrorResponse(HttpStatusCode.Conflict, "No product found with id " + item.ProductId);
if (product.ItemsInStock == 0)
return Request.CreateErrorResponse(HttpStatusCode.Conflict, "Item is no longer in stock");
Cart.AddItem(item);
product.ItemsInStock -= item.Quantity;
return Request.CreateResponse();
}
public HttpResponseMessage Put(BasketItem item)
{
var existing = Cart.Items.SingleOrDefault(i => i.Id == item.Id);
if (existing == null)
return Request.CreateErrorResponse(HttpStatusCode.NotFound, "No basketitem found with id " + item.Id);
if (existing.ProductId != item.ProductId)
return Request.CreateErrorResponse(HttpStatusCode.Conflict, "Product in item different than product in request");
var product = ProductsRepository.Products.FirstOrDefault(p => p.Id == item.ProductId);
if (product == null)
return Request.CreateErrorResponse(HttpStatusCode.Conflict, "No product found with id " + item.ProductId);
if (product.ItemsInStock == 0)
return Request.CreateErrorResponse(HttpStatusCode.Conflict, "Item is no longer in stock");
var diff = item.Quantity - existing.Quantity;
existing.Quantity = item.Quantity;
product.ItemsInStock -= diff;
return Request.CreateResponse(HttpStatusCode.Accepted, item);
}
public void AddItem(BasketItem product)
{
_items.Add(product);
}
