public async Task <ActionResult <Cart> > ApplyVoucher(String Owner, String VoucherId, DateTime date_voucher)
{
Cart cart;
try
{
IList <Cart> carts = _cartRepository.GetAll();
cart = carts.FirstOrDefault <Cart>(x => x.Owner == Owner);
if (cart == null)
{
throw new Exception(String.Format("The {0}'s cart does not exist in the database", Owner));
}
IList <VoucherStore> voucherValids = await _voucherRepository.validVouchers(cart.StoreId);
if (voucherValids.Any(c => c.VoucherId == VoucherId))
{
Voucher voucher = await _voucherRepository.GetByID(VoucherId);
IList <Tuple <Product, int> > listProducts = new List <Tuple <Product, int> >();
decimal total = 0;
foreach (CartItem cartItem in cart.Items)
{
total = total + cartItem.Product.Price * cartItem.Cant;
listProducts.Add(cartItem.GetTuple());
}
decimal discount = voucher.Calculate(listProducts, date_voucher);
cart.Total = total;
cart.Total_discount = total - discount;
return(cart);
}
else
{
return(BadRequest(String.Format("Voucher {0} invalid in Store {1}", VoucherId, cart.StoreId)));
}
}
catch (Exception ex)
{
if (ex is MiniMartException)
{
return(BadRequest(((MiniMartException)ex).MinimartMessage));
}
else
{
return(BadRequest(ex.Message));
}
}
}
public async Task <ActionResult <Voucher> > GetByID(string id)
{
return(await _voucherRepository.GetByID(id));
}