/// <summary>
/// 添加商品
/// </summary>
/// <param name="cartGoodsInfo"></param>
public void AddGoods(CartGoodsInfo cartGoodsInfo)
{
cartGoodsInfo.CheckNotNull(nameof(cartGoodsInfo));
var finalCount = _goodsCount;
finalCount += cartGoodsInfo.Quantity;
//判断是否存在该商品
var cartGoods = _cartGoodses.SingleOrDefault(x => x.Info.SpecificationId == cartGoodsInfo.SpecificationId);
if(cartGoods!=null)
{//存在商品只更新数量即可
var finalQuantity = cartGoods.Info.Quantity + cartGoodsInfo.Quantity;
ApplyEvent(new CartGoodsQuantityChangedEvent(cartGoods.Id, finalQuantity, finalCount));
}
else
{
ApplyEvent(new CartAddedGoodsEvent(Guid.NewGuid(),cartGoodsInfo, finalCount));
}
}
public CartAddedGoodsEvent(Guid cartGoodsId, CartGoodsInfo info, int finalCount)
{
CartGoodsId = cartGoodsId;
Info = info;
FinalCount = finalCount;
}