using BBWY.Common.Models;
using BBWY.Server.Model.Db;
using System;
using System.Collections.Generic;
using System.Linq;
using Yitter.IdGenerator;

namespace BBWY.Server.Business
{
    public class OrderSkuSaleDetailSyncBusiness : BaseBusiness, IDenpendency
    {
        public OrderSkuSaleDetailSyncBusiness(IFreeSql fsql, NLogManager nLogManager, IIdGenerator idGenerator, IEnumerable<PlatformSDKBusiness> platformSDKBusinessList) : base(fsql, nLogManager, idGenerator, platformSDKBusinessList)
        {
        }

        public void SyncOrderSkuSaleDetail(long shopId, DateTime startDate, DateTime endDate)
        {
            StatisticsOrderSkuSaleDetail(shopId, startDate, endDate);
        }

        public void SyncAllShopOrderSkuSaleDetail(DateTime startDate, DateTime endDate)
        {
            StatisticsOrderSkuSaleDetail(null, startDate, endDate);
        }

        private void StatisticsOrderSkuSaleDetail(long? shopId, DateTime startDate, DateTime endDate)
        {
            var endTime = endDate.Date.AddDays(1).AddSeconds(-1);
            fsql.Delete<SkuDailySalesDetail>().WhereIf(shopId != null, s => s.ShopId == shopId)
                                              .Where(s => s.Date >= startDate && s.Date <= endDate)
                                              .ExecuteAffrows();

            List<SkuDailySalesDetail> insertSkuDailySalesDetailList = new List<SkuDailySalesDetail>();

            var oskuGroups = fsql.Select<OrderSku, Order>()
                                 .InnerJoin((osku, o) => osku.OrderId == o.Id)
                                 .WhereIf(shopId != null, (osku, o) => o.ShopId == shopId)
                                 .Where((osku, o) => o.StartTime >= startDate && o.StartTime <= endTime)
                                 .Where((osku, o) => o.StorageType != Model.Enums.StorageType.SD)
                                 //.Where((osku, o) => o.OrderState != Model.Enums.OrderState.已取消)
                                 .GroupBy((osku, o) => new
                                 {
                                     o.Platform,
                                     o.ShopId,
                                     osku.ProductId,
                                     osku.SkuId,
                                     osku.Price,
                                     o.StartTime.Value.Date
                                 })
                                 .ToList(g => new SkuDailySalesDetail
                                 {
                                     Platform = g.Key.Platform,
                                     ShopId = g.Key.ShopId,
                                     Spu = g.Key.ProductId,
                                     Sku = g.Key.SkuId,
                                     Date = g.Key.Date,
                                     Price = g.Key.Price,
                                     Amount = g.Sum(g.Value.Item1.Price * g.Value.Item1.ItemTotal),
                                     ItemTotal = (int)g.Sum(g.Value.Item1.ItemTotal)
                                 });

            var cancelOskuGroups = fsql.Select<OrderSku, Order>()
                                       .InnerJoin((osku, o) => osku.OrderId == o.Id)
                                       .WhereIf(shopId != null, (osku, o) => o.ShopId == shopId)
                                       .Where((osku, o) => o.ModifyTime >= startDate && o.ModifyTime <= endTime)
                                       .Where((osku, o) => o.StorageType != Model.Enums.StorageType.SD)
                                       .Where((osku, o) => o.OrderState == Model.Enums.OrderState.已取消)
                                       .GroupBy((osku, o) => new
                                       {
                                           o.Platform,
                                           o.ShopId,
                                           osku.ProductId,
                                           osku.SkuId,
                                           osku.Price,
                                           o.ModifyTime.Value.Date
                                       })
                                       .ToList(g => new SkuDailySalesDetail
                                       {
                                           Platform = g.Key.Platform,
                                           ShopId = g.Key.ShopId,
                                           Spu = g.Key.ProductId,
                                           Sku = g.Key.SkuId,
                                           Date = g.Key.Date,
                                           Price = g.Key.Price,
                                           Amount = 0,
                                           ItemTotal = 0,
                                           CancelItemTotal = (int)g.Sum(g.Value.Item1.ItemTotal)
                                       });

            insertSkuDailySalesDetailList.AddRange(oskuGroups);

            foreach (var canceloSkuGroup in cancelOskuGroups)
            {
                var skuDaily = insertSkuDailySalesDetailList.FirstOrDefault(s => s.ShopId == canceloSkuGroup.ShopId &&
                                                                                 s.Date == canceloSkuGroup.Date &&
                                                                                 s.Sku == canceloSkuGroup.Sku);
                if (skuDaily != null)
                    skuDaily.CancelItemTotal = canceloSkuGroup.CancelItemTotal;
                else
                    insertSkuDailySalesDetailList.Add(canceloSkuGroup);
            }

            if (insertSkuDailySalesDetailList.Count() > 0)
            {
                var noSpuSkuIds = insertSkuDailySalesDetailList.Where(s => string.IsNullOrEmpty(s.Spu)).Select(s => s.Sku).Distinct().ToList();
                var skuList = fsql.Select<ProductSku>(noSpuSkuIds).ToList(ps => new { ps.ProductId, ps.Id });

                foreach (var skuDaily in insertSkuDailySalesDetailList)
                {
                    if (string.IsNullOrEmpty(skuDaily.Spu))
                        skuDaily.Spu = skuList.FirstOrDefault(ps => ps.Id == skuDaily.Sku)?.ProductId;
                    skuDaily.Id = idGenerator.NewLong();
                    skuDaily.IsGift = skuDaily.Price == 0M;
                    skuDaily.CreateTime = DateTime.Now;
                }
                fsql.Insert(insertSkuDailySalesDetailList).ExecuteAffrows();
            }
        }
    }
}