public async Task <bool> AddProductToSessionCart(ISession session, string productId, int quantity)
{
var sessionCart = this.GetOrCreateSessionCart(session);
if (!sessionCart.Products.Any(x => x.Id == productId))
{
// if a product with provided id doesn't exist get the product and add it to the cart
var product = await this.productService.GetProductForCart(productId);
product.Quantity = quantity;
product.TotalPrice = (double)(product.Price * product.Quantity);
sessionCart.Products.Add(product);
}
else
{
// if a product exists change its quantity and total price
var product = sessionCart.Products.SingleOrDefault(p => p.Id == productId);
sessionCart.Products.Remove(product);
product.Quantity += quantity;
product.TotalPrice += (double)(product.Price * quantity);
sessionCart.Products.Add(product);
}
sessionCart.TotalPrice = sessionCart.Products.Sum(p => p.TotalPrice);
SessionExtensions.SetObjectAsJson(session, GlobalConstants.ShoppingCartSession, sessionCart);
return(true);
}
public async Task <bool> RemoveProductFromSessionCart(ISession session, string productId)
{
var sessionCart = this.GetOrCreateSessionCart(session);
var product = sessionCart.Products.SingleOrDefault(p => p.Id == productId);
sessionCart.Products.Remove(product);
sessionCart.TotalPrice = sessionCart.Products.Sum(p => p.TotalPrice);
SessionExtensions.SetObjectAsJson(session, GlobalConstants.ShoppingCartSession, sessionCart);
return(true);
}
public async Task <bool> UpdateSessionProductCount(ISession session, string productId, int quantity)
{
var sessionCart = this.GetOrCreateSessionCart(session);
var product = sessionCart.Products.SingleOrDefault(p => p.Id == productId);
sessionCart.Products.Remove(product);
product.Quantity = quantity;
product.TotalPrice = (double)(product.Price * product.Quantity);
sessionCart.Products.Add(product);
sessionCart.TotalPrice = sessionCart.Products.Sum(p => p.TotalPrice);
SessionExtensions.SetObjectAsJson(session, GlobalConstants.ShoppingCartSession, sessionCart);
return(true);
}