using BBWYB.Common.Log;
using BBWYB.Common.Models;
using BBWYB.Server.Model;
using BBWYB.Server.Model.Db;
using FreeSql;
using Yitter.IdGenerator;

namespace BBWYB.Server.Business
{
    public class AggregionPurchaseSchemeBusiness : BaseBusiness, IDenpendency
    {
        private TaskSchedulerManager taskSchedulerManager;
        public AggregionPurchaseSchemeBusiness(IFreeSql fsql, NLogManager nLogManager, IIdGenerator idGenerator, TaskSchedulerManager taskSchedulerManager) : base(fsql, nLogManager, idGenerator)
        {
            this.taskSchedulerManager = taskSchedulerManager;
        }

        public void AutoAggregion()
        {
            var startTime = DateTime.Now.Date.AddDays(-2);
            //查询最近有采购的采购方案
            var schemeIdList = fsql.Select<OrderPurchaseInfo, OrderPurchaseRelationInfo>()
                                   .InnerJoin((opi, opri) => opi.OrderId == opri.OrderId &&
                                                             opi.PurchaseOrderId == opri.PurchaseOrderId)
                                   .Where((opi, opri) => opi.IsEnabled == true &&
                                                         opi.UpdateTime >= startTime &&
                                                         opri.SchemeId != null)
                                   .Distinct().ToList((opi, opri) => opri.SchemeId.Value);
            Task.Factory.StartNew(() => AggregionByGroup(schemeIdList), CancellationToken.None, TaskCreationOptions.LongRunning, taskSchedulerManager.AggregationPurchaserTaskScheduler);
        }

        public void AggregionBySchemeIdList(IList<long> schemeIdList)
        {
            Task.Factory.StartNew(() => AggregionByGroup(schemeIdList), CancellationToken.None, TaskCreationOptions.LongRunning, taskSchedulerManager.AggregationPurchaserTaskScheduler);
        }

        public void AggregionAllScheme()
        {
            var schemeIdList = fsql.Select<PurchaseScheme>().ToList(ps => ps.Id);
            Task.Factory.StartNew(() => AggregionByGroup(schemeIdList), CancellationToken.None, TaskCreationOptions.LongRunning, taskSchedulerManager.AggregationPurchaserTaskScheduler);
        }

        private void AggregionByGroup(IList<long> schemeIdList)
        {
            var tempSchemeIdList = new List<long>();
            for (var i = 0; i < schemeIdList.Count(); i++)
            {
                tempSchemeIdList.Add(schemeIdList[i]);
                if (i != 0 && i % 30 == 0)
                {
                    Console.WriteLine($"聚合{i + 1}/{schemeIdList.Count()}");
                    Aggregion(tempSchemeIdList);
                    tempSchemeIdList.Clear();
                    Thread.Sleep(2000);
                }
            }
            if (tempSchemeIdList.Count() > 0)
            {
                Console.WriteLine($"最后聚合");
                Aggregion(tempSchemeIdList);
                tempSchemeIdList.Clear();
            }
        }

        private void Aggregion(IList<long> schemeIdList)
        {
            var pssIdList = fsql.Select<PurchaseSchemeProductSku>()
                                .Where(pss => schemeIdList.Contains(pss.SkuPurchaseSchemeId))
                                .Distinct()
                                .ToList(pss => pss.PurchaseSkuId);

            #region 配件

            var dbStatisticList = fsql.Select<PurchaseSchemeProductSkuStatistic>(pssIdList).ToList();

            List<PurchaseSchemeProductSkuStatistic> insertStatisticList = new List<PurchaseSchemeProductSkuStatistic>();
            List<IUpdate<PurchaseSchemeProductSkuStatistic>> updateStatisticList = new List<IUpdate<PurchaseSchemeProductSkuStatistic>>();

            #region 采购件数/采购金额
            var aggregationItemCountAndAmountList = fsql.Select<OrderPurchaseInfo, OrderPurchaseSkuInfo>()
                                                      .InnerJoin((opi, opsi) => opi.OrderId == opsi.OrderId &&
                                                                                opi.PurchaseOrderId == opsi.PurchaseOrderId)
                                                      .Where((opi, opsi) => opi.IsEnabled == true && pssIdList.Contains(opsi.PurchaseSkuId))
                                                      .GroupBy((opi, opsi) => opsi.PurchaseSkuId)
                                                      .ToList(g => new
                                                      {
                                                          PurchaseSkuId = g.Key,
                                                          PurchasedItemCount = g.Sum(g.Value.Item2.PurchasedItemCount),
                                                          PurchasedAmount = g.Sum(g.Value.Item2.PurchasedAmount)
                                                      });
            #endregion

            #region 最近采购单价

            var recentPurchaseSkuList = fsql.Select<OrderPurchaseInfo, OrderPurchaseSkuInfo>()
                                              .InnerJoin((opi, opsi) => opi.OrderId == opsi.OrderId &&
                                                                        opi.PurchaseOrderId == opsi.PurchaseOrderId)
                                              .Where((opi, opsi) => opi.IsEnabled == true && pssIdList.Contains(opsi.PurchaseSkuId))
                                              .GroupBy((opi, opsi) => opsi.PurchaseSkuId)
                                              .WithTempQuery(g => new { MaxId = g.Max(g.Value.Item2.Id) })
                                              .From<OrderPurchaseSkuInfo>()
                                              .InnerJoin((opsi, opsi2) => opsi.MaxId == opsi2.Id)
                                              .ToList((opsi, opsi2) => opsi2);
            #endregion

            foreach (var purchaseSkuId in pssIdList)
            {
                var statistic = dbStatisticList.FirstOrDefault(x => x.PurchaseSkuId == purchaseSkuId);
                var aggregation = aggregationItemCountAndAmountList.FirstOrDefault(x => x.PurchaseSkuId == purchaseSkuId);
                var recent = recentPurchaseSkuList.FirstOrDefault(x => x.PurchaseSkuId == purchaseSkuId);
                if (statistic == null)
                {
                    insertStatisticList.Add(new PurchaseSchemeProductSkuStatistic()
                    {
                        PurchaseSkuId = purchaseSkuId,
                        CreateTime = DateTime.Now,
                        PurchasedAmount = aggregation?.PurchasedAmount ?? 0M,
                        PurchasedItemCount = Convert.ToInt32(aggregation?.PurchasedItemCount ?? 0M),
                        LastPurchasedPrice = recent?.PurchasedPrice,
                        LastPurchasedTime = recent?.CreateTime
                    });
                }
                else
                {
                    if (aggregation != null || recent != null)
                    {
                        var update = fsql.Update<PurchaseSchemeProductSkuStatistic>(purchaseSkuId)
                                         .SetIf(aggregation != null, x => x.PurchasedAmount, aggregation?.PurchasedAmount ?? 0M)
                                         .SetIf(aggregation != null, x => x.PurchasedItemCount, Convert.ToInt32(aggregation?.PurchasedItemCount ?? 0))
                                         .SetIf(recent != null, x => x.LastPurchasedPrice, recent.PurchasedPrice)
                                         .SetIf(recent != null, x => x.LastPurchasedTime, recent.CreateTime);
                        updateStatisticList.Add(update);
                    }
                }
            }
            #endregion

            #region 采购方案
            //List<PurchaseScheme> dbSchemeList = fsql.Select<PurchaseScheme>(schemeIdList).ToList();

            //#region 最近采购成本/采购时间


            //var recentPurchaseRecordList = fsql.Select<OrderPurchaseInfo, OrderPurchaseRelationInfo, OrderPurchaseSkuInfo>()
            //                                   .InnerJoin((opi, opri, opsi) => opi.OrderId == opri.OrderId &&
            //                                                                   opi.PurchaseOrderId == opri.PurchaseOrderId)
            //                                   .InnerJoin((opi, opri, opsi) => opri.PurchaseOrderId == opsi.PurchaseOrderId &&
            //                                                                  opri.PurchaseSkuId == opsi.PurchaseSkuId)
            //                                   .Where((opi, opri, opsi) => opi.IsEnabled == true &&
            //                                                              schemeIdList.Contains(opri.SchemeId.Value))
            //                                   .OrderByDescending((opi, opri, opsi) => opri.CreateTime)
            //                                   .Page(1, 1000)
            //                                   .ToList((opi, opri, opsi) => new
            //                                   {
            //                                       opi.OrderId,
            //                                       opi.PurchaseOrderId,
            //                                       opri.SchemeId,
            //                                       opsi.PurchasedPrice,
            //                                       opsi.CreateTime
            //                                   });

            //var recentPurchaseRecordGroups = recentPurchaseRecordList.GroupBy(x => x.SchemeId);
            //foreach (var relationGroup in recentPurchaseRecordGroups)
            //{
            //    var scheme = dbSchemeList.FirstOrDefault(s => s.Id == relationGroup.Key.Value);
            //    if (scheme == null)
            //        continue;

            //    //取最近一笔订单，最大的订单号
            //    var recentOrderId = relationGroup.Max(x => x.OrderId);
            //    var recentOrderRelationRecordList = relationGroup.Where(x => x.OrderId == recentOrderId);
            //    scheme.LastPurchasePriceCost = recentOrderRelationRecordList.Sum(x=>x.PurchasedPrice);
            //    scheme.LastBargainingTime = recentOrderRelationRecordList.FirstOrDefault()?.CreateTime;
            //}


            //#endregion


            #region 采购次数

            #endregion

            #region 采购件数

            #endregion

            #region 采购金额

            #endregion

            #endregion

            fsql.Transaction(() =>
            {
                if (insertStatisticList.Count() > 0)
                    fsql.Insert(insertStatisticList).ExecuteAffrows();
                if (updateStatisticList.Count() > 0)
                {
                    foreach (var update in updateStatisticList)
                        update.ExecuteAffrows();
                }
            });
        }
    }
}