/// <summary>
/// 校验活动资源
/// </summary>
/// <param name="userId">用户Id</param>
/// <param name="promotion">商品活动</param>
/// <param name="comNumber">用户购买数量</param>
/// <returns>用户是否可以购买</returns>
public static bool CheckResource(Guid userId, TodayPromotionDTO promotion, int comNumber)
{
return(CheckResource(userId, new List <Tuple <TodayPromotionDTO, int> >()
{
new Tuple <TodayPromotionDTO, int>(promotion, comNumber)
}));
}
private bool checkCanBuyByPromotion(TodayPromotionDTO promotion, CreateOrderCom createOrderCom)
{
if (promotion == null)
{
createOrderCom.checkResult.FillData(true, false, 0, ComCantBuyReasonEnum.NoPromotion, "活动已失效");
return(false);
}
if (promotion.StartTime > DateTime.Now)
{
createOrderCom.checkResult.FillData(true, false, 0, ComCantBuyReasonEnum.PromotionNotStart,
"活动即将开始");
return(false);
}
if (promotion.EndTime < DateTime.Now)
{
createOrderCom.checkResult.FillData(true, false, 0, ComCantBuyReasonEnum.PromotionEnded, "活动已结束");
return(false);
}
if (!PromotionCheck.CheckResource(_condition.userId, promotion, createOrderCom.number))
{
createOrderCom.checkResult.FillData(true, false, 0, ComCantBuyReasonEnum.Stock, "商品库存不足");
return(false);
}
return(true);
}
/// <summary>
/// 校验活动资源
/// </summary>
/// <param name="userId"></param>
/// <param name="promotions"></param>
/// <returns>用户是否可以购买</returns>
public static bool CheckResource(Guid userId, List <Tuple <TodayPromotionDTO, int> > promotions)
{
if (promotions == null || !promotions.Any())
{
return(true);
}
foreach (var tuple in promotions)
{
TodayPromotionDTO todaypromotion = tuple.Item1;
int comNumber = tuple.Item2;
if (todaypromotion.LimitBuyEach != -1)
{
int sumLi = RedisHelper.GetHashValue <int>(RedisKeyConst.UserLimitPrefix + todaypromotion.PromotionId + ":" + todaypromotion.CommodityId, userId.ToString());
if (sumLi + comNumber > todaypromotion.LimitBuyEach)
{
return(false);
}
}
if (todaypromotion.LimitBuyTotal != -1)
{
if (todaypromotion.SurplusLimitBuyTotal + comNumber > todaypromotion.LimitBuyTotal)
{
return(false);
}
}
}
return(true);
}
