/// <summary>
/// 先按BC方式拆单，BC拆完仍有剩余时，全部放到一个子订单中(里面的费用全设为MaxValue)
/// </summary>
/// <param name="productList"></param>
/// <returns></returns>
public SplitedOrder Split(List <ProductEntity> productList /*, int totalQuantity*/)
{
var result = new SplitedOrder();
var peTuple = SplitProductEntity(productList, (decimal)this.BcConfig.TotalPriceLimit);
// 额度(2万)以后按BC拆单
var subOrder = CreateSubOrder();
peTuple.Item1.ForEach(pe => subOrder.ProList.AddRange(pe.OrderInfo));
subOrder.TaxCost = CalculateTax(peTuple.Item1);
result.AddSubOrder(subOrder);
if (peTuple.Item2.Count > 0)
{
// 超过额度的不拆了，卖不了
var invalidSubOrder = new SubOrder("-1", null, null, null, null, null, peTuple.Item2.SelectMany(pe => pe.OrderInfo).ToList())
{
LogisticsUnitPrice = int.MaxValue,
LogisticsCost = int.MaxValue,
TaxCost = int.MaxValue,
};
result.AddSubOrder(invalidSubOrder);
}
result.OrderList.ForEach(so => so.LogisticsCost = this.CalculateFreight(so.CalculateTotalWeight()));
result.OrderList.ForEach(so => so.CalculateTotalPrice());
return(result);
}
private SplitedOrder SplitOrder(string orderId, List <ProductEntity> productList, List <Product> badProductList, int totalQuantity, SplitPrinciple splitPrinciple)
{
Debug.Assert(splitPrinciple != SplitPrinciple.LogisticsFirst);
var result = new SplitedOrder();
List <List <RuleEntity> > ruleOptions = null;
switch (splitPrinciple)
{
case SplitPrinciple.SpeedFirst:
break;
case SplitPrinciple.QuanlityFirst:
case SplitPrinciple.PriceFirst:
default:
ruleOptions = splitConfig.GetRuleEntities(splitPrinciple, productList);
break;
}
if (ruleOptions != null && ruleOptions.Count > 0)
{
var splitResults = ruleOptions.Select(rules => SplitOnce(SplitPackage.SplitV1.Common.Common.CloneProductEntityList(productList), rules, splitPrinciple)).ToList();
Tuple <SplitedOrder, bool, List <ProductEntity> > optimal = null;
switch (splitPrinciple)
{
case SplitPrinciple.QuanlityFirst:
optimal = splitResults.OrderBy(t => t.Item2 ? 0 : 1)
.ThenBy(t => t.Item1.OrderList.Count)
.ThenBy(t => t.Item1.CalculateLogisticsAndTaxCost())
.FirstOrDefault();
break;
case SplitPrinciple.PriceFirst:
case SplitPrinciple.LogisticsFirst:
default:
optimal = splitResults.OrderBy(t => t.Item2 ? 0 : 1)
.ThenBy(t => t.Item1.CalculateLogisticsAndTaxCost())
.ThenBy(t => t.Item1.OrderList.Count)
.FirstOrDefault();
break;
}
result = optimal != null ? optimal.Item1 : result;
}
else
{
// BC方式，计算跨境综合税
result = this.ReturnRemainPackage(productList);
}
if (badProductList != null && badProductList.Any())
{
var subOrder = new SubOrder("-2", null, null, null, null, null, badProductList)
{
LogisticsUnitPrice = int.MaxValue,
LogisticsCost = int.MaxValue,
TaxCost = int.MaxValue,
};
result.AddSubOrder(subOrder);
}
result.OrderId = orderId;
return(result);
}
private SplitedOrder ReturnRemainPackage(List <ProductEntity> remainProducts)
{
var result = new SplitedOrder();
var productList = remainProducts.SelectMany(o => o.OrderInfo).ToList();
var invalidSubOrder = new SubOrder()
{
Id = "-1",
TotalWeight = productList.Sum(o => o.Weight * o.Quantity),
TotalPrice = productList.Sum(o => o.ProPrice * o.Quantity),
ProList = productList
};
result.AddSubOrder(invalidSubOrder);
return(result);
}
/// <summary>
/// 循环拆解商品项
/// </summary>
/// <param name="productList"></param>
/// <param name="withTax"></param>
/// <returns>可拆解出的子订单,未能拆解的商品</returns>
public Tuple <SplitedOrder, List <ProductEntity> > Split(List <ProductEntity> productList, bool withTax)
{
var result = new SplitedOrder();
var productEntities = productList.Where(pe => ruleItemDic.ContainsKey(pe.PTId)).ToList();
var subOrder = SplitOneSubOrder(productEntities, withTax);
while (subOrder != null && subOrder.ProList.Count > 0)
{
result.AddSubOrder(subOrder);
subOrder = SplitOneSubOrder(productEntities, withTax);
}
productList.RemoveAll(pe => pe.OrderInfo.Count <= 0);
result.OrderList.ForEach(so => so.CalculateTotalPrice());
result.OrderList.Where(so => withTax).ToList().ForEach(so => CalculateTax(so));
return(Tuple.Create(result, productList));
}
private SplitedOrder SplitOrder(string orderId, List <ProductEntity> productList, List <Product> badProductList, int totalQuantity, SplitPrinciple splitPrinciple)
{
Debug.Assert(splitPrinciple != SplitPrinciple.LogisticsFirst);
var result = new SplitedOrder();
List <List <RuleEntity> > ruleOptions = null;
switch (splitPrinciple)
{
case SplitPrinciple.SpeedFirst:
// BC
break;
//case SplitPrinciple.LogisticsFirst:
case SplitPrinciple.QuanlityFirst:
case SplitPrinciple.PriceFirst:
default:
ruleOptions = splitConfig.GetRuleEntities(splitPrinciple, productList);
break;
}
if (ruleOptions != null && ruleOptions.Count > 0)
{
var splitResults = ruleOptions.Select(rules => SplitOnce(SplitPackage.Split.Common.Common.CloneProductEntityList(productList), rules, splitPrinciple)).ToList();
var msgs = Enumerable.Repeat(string.Format("Spliter.SplitOrder({0}, {1}, {2}, {3}) alternative:", "orderId=" + orderId, "productList.Count=" + productList.Count, "totalQuantity=" + totalQuantity, "splitPrinciple=" + splitPrinciple), 1)
.Concat(splitResults.Select(ret => string.Format(" ({0}, {1}, {2})", ret.Item1, ret.Item2, "[" + string.Join(", ", ret.Item3) + "]")));
LogHelper.Logger.Info(string.Join(Environment.NewLine, msgs));
Tuple <SplitedOrder, bool, List <ProductEntity> > optimal = null;
switch (splitPrinciple)
{
case SplitPrinciple.QuanlityFirst:
optimal = splitResults.OrderBy(t => t.Item2 ? 0 : 1)
.ThenBy(t => t.Item1.OrderList.Count)
.ThenBy(t => t.Item1.CalculateLogisticsAndTaxCost())
.FirstOrDefault();
break;
case SplitPrinciple.PriceFirst:
case SplitPrinciple.LogisticsFirst:
default:
optimal = splitResults.OrderBy(t => t.Item2 ? 0 : 1)
.ThenBy(t => t.Item1.CalculateLogisticsAndTaxCost())
.ThenBy(t => t.Item1.OrderList.Count)
.FirstOrDefault();
break;
}
result = optimal != null ? optimal.Item1 : result;
}
else
{
// BC方式，计算跨境综合税
result = bcRuleEntity.Split(productList);
}
if (badProductList != null && badProductList.Any())
{
var subOrder = new SubOrder("-2", null, null, null, null, null, badProductList)
{
LogisticsUnitPrice = int.MaxValue,
LogisticsCost = int.MaxValue,
TaxCost = int.MaxValue,
};
result.AddSubOrder(subOrder);
}
result.OrderId = orderId;
return(result);
}
// 拆包，把当前Rule能装的包全拆
public Tuple <SplitedOrder, List <ProductEntity> > Split(List <ProductEntity> productList, bool withTax)
{
var result = new SplitedOrder();
var index = productList.FindIndex(pe => pe.PTId == this.PTId);
if (index >= 0)
{
var pe = productList[index];
var restProducts = new List <Product>();
var subOrder = CreateSubOrder();
for (int j = 0; j < pe.OrderInfo.Count; j++)
{
var restProduct = pe.OrderInfo[j];
while (restProduct.Quantity > 0)
{
var pl = FindSubLevel(restProduct);
var quantityLimit = (pl != null ? pl.MaxQuantity : this.MaxQuantity) - subOrder.CalculateTotalQuantity();
var weightLimit = (pl != null ? pl.MaxWeight : this.MaxWeight) - subOrder.CalculateTotalWeight();
var priceLimit = (withTax ? this.MaxPrice : (pl != null ? (decimal)pl.MaxPrice : this.TaxThreshold)) - subOrder.CalculateTotalPrice();
var productTuple = SplitProduct(restProduct, quantityLimit, weightLimit, priceLimit);
if (productTuple.Item1.Quantity <= 0) // 一个都分配不出去，要么是当前Rule不满足，要么是当前SubOrder满了，测试一下是哪种情况
{
var testProduct = SplitProduct(restProduct, this.MaxQuantity, this.MaxWeight, this.MaxPrice);
if (testProduct.Item1.Quantity <= 0) // Rule不满足
{
break;
}
else // 满了，换下一个子包
{
result.AddSubOrder(subOrder);
subOrder = CreateSubOrder();
}
}
else // 分配了部分或全部
{
subOrder.ProList.Add(productTuple.Item1);
restProduct = productTuple.Item2;
if (restProduct.Quantity > 0 || subOrder.CalculateTotalQuantity() >= this.MaxQuantity) // 当前子包满了(有剩余，或者子包的数量达到上限)
{
result.AddSubOrder(subOrder);
subOrder = CreateSubOrder();
}
}
}
if (restProduct.Quantity > 0) // 如果分配不出去了，但还有剩下，那放回原队列，分配给下一家物流
{
restProducts.Add(restProduct);
}
}
if (subOrder.ProList.Count > 0)
{
result.AddSubOrder(subOrder);
subOrder = CreateSubOrder();
}
if (restProducts.Any()) // 最后还有剩余，把剩余放回队列
{
productList[index].OrderInfo = restProducts;
}
else // 没有剩余，从队列移除
{
productList.RemoveAt(index);
}
}
result.OrderList.ForEach(so => so.CalculateTotalPrice());
result.OrderList.Where(so => withTax).ToList().ForEach(so => CalculateTax(so));
return(Tuple.Create(result, productList));
}