public Shop(IShopItemGroup rootCategories, ICollection <IUser> users, ICollection <IManager> managers, ICollection <IOrder> orders)
{
_rootCategories = rootCategories;
_users = users;
_managers = managers;
_orders = orders;
}
protected virtual void Validate(IShopItem shopItem, IShopItemGroup group)
{
if (shopItem == null)
{
throw new NullReferenceException("shopItem should be not null");
}
else if (group == null)
{
throw new NullReferenceException("group should be not null");
}
}
public void Add(IShopItem shopItem, IShopItemGroup group)
{
Validate(shopItem, group);
group.Add(shopItem);
}
