public DeliveryFeeSumBLL(DeliveryFeeSumMethond SumFeeMethod)
{
this._SumFeeMethod = SumFeeMethod;
}
/// <summary>
/// 获取商品运费（专业版：通过购物车商品）
/// </summary>
/// <param name="goodCarts"></param>
/// <param name="sumMethod"></param>
/// <returns></returns>
public DeliveryFeeResult GetDeliveryFeeSum(List <EntGoodsCart> goodCarts, string provinces, string city, DeliveryFeeSumMethond sumMethod)
{
DeliveryFeeResult result = new DeliveryFeeResult();
if (string.IsNullOrWhiteSpace(provinces) || string.IsNullOrWhiteSpace(city))
{
result.InRange = false;
result.Message = "无效配送地址";
return(result);
}
//获取商品
string goodsId = string.Join(",", goodCarts.Select(good => good.FoodGoodsId));
if (string.IsNullOrWhiteSpace(goodsId))
{
result.InRange = false;
return(result);
}
List <EntGoods> goods = EntGoodsBLL.SingleModel.GetListByIds(goodsId);
List <DeliveryProduct> computedProduct = goodCarts.Where(item => goods.FindIndex(good => good.id == item.FoodGoodsId) > -1).Select(item => {
//商品
EntGoods good = goods.Find(thisGood => thisGood.id == item.FoodGoodsId);
return(new DeliveryProduct
{
Name = good.name,
Count = item.Count,
TemplateId = good.TemplateId,
Weight = good.Weight,
Amount = item.Price,
Id = good.id
});
}).ToList();
return(GetDeliveryFeeCommon(productInfo: computedProduct, provinces: provinces, city: city, sumMethod: sumMethod));
}
public DeliveryFeeResult GetDeliveryFee(BargainUser bargainOrder, string province, string city, DeliveryFeeSumMethond sumMethod, DeliveryConfig config = null)
{
if (config == null)
{
config = DeliveryConfigBLL.SingleModel.GetConfig(new Bargain {
Id = bargainOrder.BId
});
}
DeliveryProduct formatProduct = new DeliveryProduct
{
Count = 1,
Name = bargainOrder.BName,
TemplateId = config.Attr.DeliveryTemplateId,
Weight = config.Attr.Weight,
Amount = bargainOrder.CurrentPrice,
};
DeliveryFeeResult result = GetDeliveryFeeCommon(new List <DeliveryProduct> {
formatProduct
}, province, city, sumMethod);
if (result.InRange)
{
DeliveryDiscount discount = GetDiscount(bargainOrder.aid, bargainOrder.CurrentPrice);
result.Fee = discount.HasDiscount ? discount.DiscountPrice : result.Fee;
result.Message = discount.HasDiscount ? discount.DiscountInfo : result.Message;
}
return(result);
}
/// <summary>
/// 获取商品运费（通用业务）
/// </summary>
/// <param name="productInfo">产品信息</param>
/// <param name="provinces">配送省份</param>
/// <param name="city">配送市区</param>
/// <param name="sumMethod">运费结算规则</param>
/// <returns></returns>
public DeliveryFeeResult GetDeliveryFeeCommon(List <DeliveryProduct> productInfo, string provinces, string city, DeliveryFeeSumMethond sumMethod)
{
DeliveryFeeResult result = new DeliveryFeeResult();
if (string.IsNullOrWhiteSpace(provinces) || string.IsNullOrWhiteSpace(city))
{
result.Message = "无效配送地址";
return(result);
}
//获取商品
if (productInfo == null || productInfo.Count == 0)
{
result.Message = "无效产品信息";
return(result);
}
//获取运费模板ID
string templateIds = string.Join(",", productInfo.Select(product => product.TemplateId).Where(templateId => templateId > 0));
if (string.IsNullOrWhiteSpace(templateIds))
{
//没有选择运费模板，默认零元
result.InRange = true;
result.Message = "没有产品使用运费模板，返回零元";
return(result);
}
List <DeliveryTemplate> productTemplates = GetTemplateByIds(templateIds);
if (productTemplates == null || productTemplates.Count == 0)
{
//没运费模板数据，已删除，默认零元
result.InRange = true;
result.Message = "查无运费模板，或许已删除，默认返回零元";
return(result);
}
DeliveryFeeSumBLL sumFeeMethod = new DeliveryFeeSumBLL(sumMethod);
foreach (DeliveryTemplate template in productTemplates)
{
List <DeliveryProduct> products = productInfo.FindAll(item => item.TemplateId == template.Id);
if (template.IsFree == 1)
{
//全国包邮
result.Fee = 0;
result.InRange = true;
result.Message += $"[{template.Name}]模板，设置为全国包邮，[{string.Join(",",products.Select(item => item.Name))}]商品运费为零；";
continue;
}
DeliveryTemplate region = MatchDeliveryRegion(template, provinces, city);
if (region == null)
{
//检查超出配送区域
result.ErrorId = products.First().Id;
result.Message = $"[{products.First().Name}]不在配送区域内";
return(result);
}
if (region.IsFree == 1)
{
//部分区域设置包邮
result.Fee = 0;
result.InRange = true;
result.Message += $"[{string.Join(",", products.Select(item => item.Name))}]配送到[{provinces}][{city}]为包邮地区；";
continue;
}
//购买单位
int unit = 0;
int padUnit = 0;
string unitName = string.Empty;
switch (template.UnitType)
{
case (int)DeliveryUnit.件数:
unitName = "件";
unit = products.Sum(item => item.Count);
break;
case (int)DeliveryUnit.重量:
unitName = "g";
//购买重量 = 数量 x 单件重量
unit = products.Sum(item => item.Count * item.Weight);
//补余，如：购买300g，不足1kg，追加700kg
int extraUnit = unit - region.Base;
if (extraUnit > 0 && region.Extra > 0 && region.ExtraCost > 0)
{
padUnit = (int)Math.Ceiling((double)extraUnit / region.Extra) * region.Extra - extraUnit;
}
break;
default:
continue;
}
//新建运费
DeliveryFeeSum sum = new DeliveryFeeSum
{
Base = region.Base,
BaseCost = region.BaseCost,
Extra = region.Extra,
ExtraCost = region.ExtraCost,
BuyUnit = unit,
PadUnit = padUnit,
UnitType = template.UnitType
};
//叠加运费
sumFeeMethod.AddTotal(sum);
result.Message += string.Join(";", products.Select(item =>
{
int buyUnit = template.UnitType == (int)DeliveryUnit.件数 ? item.Count : item.Count * item.Weight;
return(string.Join("", new string[]
{
$"[{item.Name}]（购买{buyUnit}{unitName}）:",
$"{sum.Base}{unitName} 内 {sum.BaseCost * 0.01}元，",
$"运费增加{sum.ExtraCost * 0.01}元；",
}));
}));
}
int totalFee = 0;
result.InRange = true;
try
{
totalFee = sumFeeMethod.GetTotal();
}
catch (Exception ex)
{
result.Message = ex.Message;
result.InRange = false;
}
result.Fee = totalFee;
return(result);
}
