private async Task<int> BuildDonationModel(OrderViewModel order, IList<WishlistItem> wishlistItems) {
var donation = new Donation {
DonorId = order.DonorId,
OrderId = order.OrderId,
Date = DateTime.Now,
Subtotal = order.Subtotal,
SalesTax = order.SalesTax,
Total = order.Total
};
_db.Donations.Add(donation);
var donatedItems = order.Items.Join(wishlistItems, oi => oi.WishlistItemId, wi => wi.Id,
(oi, wi) => new DonatedItem {
Donation = donation,
Item = wi,
PurchasePrice = oi.Price,
Title = oi.Title,
});
foreach (var di in donatedItems) {
_db.DonatedItems.Add(di);
}
await _db.SaveChangesAsync();
return donation.Id;
}
private OrderViewModel BuildOrderModel(int donorId, IList<CartItem> items) {
var orderItems = items.Select(ci => new OrderItemViewModel {
WishlistItemId = ci.Item.Id,
ItemId = ci.Item.ItemId,
Price = ci.Price,
Title = ci.Title
}).ToList();
var subtotal = items.Sum(oi => oi.Price);
var shipping = subtotal * (decimal) (0.05 + new Random().NextDouble() * 0.2);
var tax = (subtotal + shipping) * 0.05m;
var total = subtotal + shipping + tax;
var order = new OrderViewModel {
DonorId = donorId,
OrderId = Guid.NewGuid().ToString(),
Subtotal = subtotal,
Shipping = shipping,
SalesTax = tax,
Total = total,
Items = orderItems
};
return order;
}