private ShoppingCart(ShoppingCartSnapshot snapshot)
{
this.userId = snapshot.UserId;
this.items = new List<ShoppingCartItem>();
this.totalAmountAfterDiscount = snapshot.TotalAmountAfterDiscount;
snapshot.Items.ForEach(itemSnapshot => {
items.Add(ShoppingCartItem.FromSnapshot(itemSnapshot));
});
}
public ShoppingCartSnapshot CreateSnapshot()
{
List<ShoppingCartItemSnapshot> itemsSnapshot = new List<ShoppingCartItemSnapshot>();
items.ForEach(item => {
itemsSnapshot.Add(item.CreateSnapshot());
});
ShoppingCartSnapshot snapshot = new ShoppingCartSnapshot {
TotalAmountAfterDiscount = this.totalAmountAfterDiscount,
Items = itemsSnapshot,
UserId = this.userId
};
return snapshot;
}
public static ShoppingCart FromSnapshot(ShoppingCartSnapshot snapshot)
{
return new ShoppingCart(snapshot);
}