/// <summary>
/// Counts the fee by weight.
/// 根据重量计算区域运费
/// </summary>
/// <param name="regionFee">The delivery fee.</param>
/// <param name="weight">The weight.</param>
private decimal CountFeeByWeight(RegionTemplateFee regionFee, decimal weight)
{
//基础费用为首重
var result = regionFee.StartFee;
//判断是否超过首重
if (weight > regionFee.StartStandard)
{
//续重重量（整数)
var nextWeight = weight - regionFee.StartStandard;
//nextWeight = Math.Ceiling(nextWeight); // 向上取整
//排除续费为0，不需要运费的
if (regionFee.EndStandard != 0)
{
//加上续重费用，以续重为基础，加上超过其倍数的费用
var nextWeightFee = Math.Ceiling(nextWeight / regionFee.EndStandard);
result += nextWeightFee * regionFee.EndFee;
//如果超过首重的部分不能被续费重量整除，则向上取整，需要再加入单位续重
//if (nextWeight % regionFee.EndStandard != 0) {
// result += regionFee.EndFee;
//}
}
}
return(result);
}
/// <summary>
/// Counts the express fee.
/// 根据客户选择的物流方式，商品重量，计算快递费用
/// </summary>
/// <param name="storeId">The stroe identifier.</param>
/// <param name="templId">The express identifier.</param>
/// <param name="userAddress">用户地址</param>
/// <param name="weight">The weight.</param>
public Tuple <ServiceResult, decimal> CountExpressFee(ObjectId storeId, ObjectId templId, UserAddress userAddress, decimal weight)
{
var expressFee = 0m; // 快递费用
var express = Resolve <IDeliveryTemplateService>().GetSingle(t => t.StoreId == storeId && t.Id == templId);
if (express == null)
{
return(Tuple.Create(ServiceResult.FailedWithMessage("运费模板未找到"), expressFee));
}
//卖家承担运费的模版，运费为0
if (express.TemplateType == DeliveryTemplateType.SellerBearTheFreight)
{
return(Tuple.Create(ServiceResult.Success, expressFee));
}
//先检查区县，如果区县运费找到，则直接返回
var regionTemplateFee = GetTemplateFeeByRegionId(express, userAddress.RegionId);
if (regionTemplateFee != null)
{
expressFee = CountFeeByWeight(regionTemplateFee, weight);
return(Tuple.Create(ServiceResult.Success, expressFee));
}
// 如果区县未运费找到,再检查城市，如果城市运费找到，则直接返回
regionTemplateFee = GetTemplateFeeByRegionId(express, userAddress.City);
if (regionTemplateFee != null)
{
expressFee = CountFeeByWeight(regionTemplateFee, weight);
return(Tuple.Create(ServiceResult.Success, expressFee));
}
// 如果城市未运费找到,再检查省份，如果省份运费找到，则直接返回
regionTemplateFee = GetTemplateFeeByRegionId(express, userAddress.Province);
if (regionTemplateFee != null)
{
expressFee = CountFeeByWeight(regionTemplateFee, weight);
return(Tuple.Create(ServiceResult.Success, expressFee));
}
// 如果省份未运费找到,默认数据配置
var regionFee = new RegionTemplateFee
{
StartFee = express.StartFee,
EndFee = express.EndFee,
StartStandard = express.StartStandard,
EndStandard = express.EndStandard
};
expressFee = CountFeeByWeight(regionFee, weight);
return(Tuple.Create(ServiceResult.Success, expressFee));
}
/// <summary>
/// Counts the express fee.
/// 根据客户选择的物流方式，商品重量，计算快递费用
/// </summary>
/// <param name="storeId">The stroe identifier.</param>
/// <param name="userAddress">用户地址</param>
/// <param name="productSkuItems">The weight.</param>
public Tuple <ServiceResult, decimal> CountExpressFee(ObjectId storeId, UserAddress userAddress, IList <ProductSkuItem> productSkuItems)
{
//total
var totalExpressFee = 0m;
//get all delivery template
var deliveryTemplates = Resolve <IDeliveryTemplateService>().GetList(d => d.StoreId == storeId).ToList();
var productGroups = productSkuItems.GroupBy(p => p.ProductId).ToList();
productGroups.ForEach(product => {
var tempDelivery = product.FirstOrDefault();
var template = deliveryTemplates.FirstOrDefault(d => d.Id.ToString() == tempDelivery?.DeliveryTemplateId);
if (template == null || template.TemplateType == DeliveryTemplateType.SellerBearTheFreight)
{
return;
}
//delivery freight calculate type
var value = 0M;
if (template.CalculateType == DeliveryFreightCalculateType.ByCount)
{
value = product.Sum(p => p.BuyCount);
}
if (template.CalculateType == DeliveryFreightCalculateType.ByWeight)
{
value = product.Sum(p => p.IsFreeShipping ? 0 : (p.BuyCount * p.Weight) / 1000);
}
//region (现在用户只存了县级id (440105),县级找不到截前四位)
var tempExpressFee = CountFeeByRegion(template, userAddress.RegionId, value);
if (tempExpressFee < 0)
{
//city
var cityId = userAddress.RegionId.ToString().Substring(0, 4).ToLong();
//if (userAddress.City > 0)
//{
// cityId = userAddress.City;
//}
tempExpressFee = CountFeeByRegion(template, cityId, value);
if (tempExpressFee < 0)
{
//province
var provinceId = userAddress.RegionId.ToString().Substring(0, 2).ToLong();
//if (userAddress.Province > 0)
//{
// provinceId = userAddress.Province;
//}
tempExpressFee = CountFeeByRegion(template, provinceId, value);
}
}
if (tempExpressFee < 0)
{
//default
var regionFee = new RegionTemplateFee {
StartFee = template.StartFee,
EndFee = template.EndFee,
StartStandard = template.StartStandard,
EndStandard = template.EndStandard
};
totalExpressFee += CountFeeByWeight(regionFee, value);
}
else
{
totalExpressFee += tempExpressFee;
}
});
return(Tuple.Create(ServiceResult.Success, totalExpressFee));
}