public void RemoveItem(string productId, string unitId)
{
var vanItem = ShoppingVanItems.FirstOrDefault(x => x.ProductId == productId);
if (vanItem == null)
{
throw new ShoppingVanItemNotFound(productId, unitId);
}
TotalItemsCount -= 1;
var unit = vanItem.DecreaseUnit(unitId);
TotalPrice -= unit.SellingPrice;
AddDomainEvent(new ShoppingVanUpdated(this));
}
public void AddItem(string productId, string productName, string photoUrl, List <Unit> units, string unitId)
{
// Check if the product exist in the shopping van items or not if not will will add it with the required amount
var vanItem = ShoppingVanItems.FirstOrDefault(x => x.ProductId == productId);
if (vanItem == null)
{
vanItem = new VanItem(Id.ToString(), productId, productName, photoUrl, units);
ShoppingVanItems.Add(vanItem);
}
var unit = vanItem.IncreaseUnit(unitId);
TotalItemsCount += 1;
TotalPrice += unit.SellingPrice;
AddDomainEvent(new ShoppingVanUpdated(this));
}