using Azure.Identity;
using Business.Core.Utilities;
using Business.Domain;
using Business.Dto;
using Business.EntityFrameworkCore.SqlRepositories;
using Business.ResourceExamineManagement.Dto;
using Business.SaleForecast;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Spire.Pdf.General.Render.Decode.Jpeg2000.j2k.quantization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Threading.Tasks;
using Volo.Abp.Application.Services;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.MultiTenancy;
using Volo.Abp.Uow;

namespace Business.SaleForecastManagement
{
    /// <summary>
    /// 产能分析
    /// </summary>
    public class MonthlyCapacityLoadAppService : ApplicationService, IMonthlyCapacityLoadAppService, ITransientDependency
    {
        #region 服务
        /// <summary>
        /// 物料
        /// </summary>
        private IRepository<ic_item, long> _ic_item;

        /// <summary>
        /// 整体需求计划明细
        /// </summary>
        private ISqlRepository<OverallDemandPlanDtl> _overallDemandPlanDtl;

        /// <summary>
        /// 生产线明细
        /// </summary>
        private ISqlRepository<ProdLineDetail> _prodLineDetail;

        /// <summary>
        /// 工作日历数据
        /// </summary>
        private ISqlRepository<ShopCalendarWorkCtr> _shopCalendarWorkCtr;

        /// <summary>
        /// 产线休息时间记录表
        /// </summary>
        private ISqlRepository<QualityLineWorkDetail> _qualityLineWorkDetail;

        /// <summary>
        /// 节假日记录表
        /// </summary>
        private ISqlRepository<HolidayMaster> _holidayMaster;

        /// <summary>
        /// 月度产能共识主表
        /// </summary>
        private ISqlRepository<MonthlyProdCapacityMain> _monthlyProdCapacityMain;

        /// <summary>
        /// 月度产能共识明细表
        /// </summary>
        private ISqlRepository<MonthlyProdCapacityDtl> _monthlyProdCapacityDtl;

        /// <summary>
        /// 工作单元
        /// </summary>
        private readonly IUnitOfWorkManager _unitOfWorkManager;

        /// <summary>
        /// 日志
        /// </summary>
        private readonly ICurrentTenant _currentTenant;

        /// <summary>
        /// 年度生产需求大纲
        /// </summary>
        private IRepository<YearDemandManagement, long> _yearDemandManagement;

        /// <summary>
        /// 年度生产需求大纲历史记录
        /// </summary>
        private IRepository<YearDemandManagementHistory, long> _yearDemandManagementHistory;

        /// <summary>
        /// 国内终端预测
        /// </summary>
        private IRepository<DomesticTerminalFcst, long> _domesticTerminalFcst;

        /// <summary>
        /// 海外销售预测
        /// </summary>
        private IRepository<OverseasSaleFcst, long> _overseasSaleFcst;

        /// <summary>
        /// 平台预测收集
        /// </summary>
        private IRepository<PlatformFcstCollect, long> _platformFcstCollect;

        /// <summary>
        /// 标准物料规格型号设置表
        /// </summary>
        private IRepository<StandardItemModelSet,long> _standardItemModelSet;

        /// <summary>
        /// 库存明细表
        /// </summary>
        private ISqlRepository<LocationDetail> _locationDetail;

        /// <summary>
        /// 工单
        /// </summary>
        private ISqlRepository<WorkOrdMaster> _workOrdMaster;

        /// <summary>
        /// 雪花算法
        /// </summary>
        SnowFlake help = new SnowFlake();
        #endregion

        #region 构造函数
        /// <summary>
        /// 构造函数
        /// </summary>
        public MonthlyCapacityLoadAppService(
            IRepository<ic_item, long> ic_item,
            ISqlRepository<OverallDemandPlanDtl> overallDemandPlanDtl,
            ISqlRepository<ProdLineDetail> prodLineDetail,
            ISqlRepository<ShopCalendarWorkCtr> shopCalendarWorkCtr,
            ISqlRepository<QualityLineWorkDetail> qualityLineWorkDetail,
            ISqlRepository<HolidayMaster> holidayMaster,
            ISqlRepository<MonthlyProdCapacityMain> monthlyProdCapacityMain,
            ISqlRepository<MonthlyProdCapacityDtl> monthlyProdCapacityDtl,
            IUnitOfWorkManager unitOfWorkManager,
            ICurrentTenant currentTenant,
            IRepository<StandardItemModelSet,long> standardItemModelSet,
            IRepository<YearDemandManagement, long> yearDemandManagement,
            IRepository<DomesticTerminalFcst, long> domesticTerminalFcst,
            IRepository<OverseasSaleFcst, long> overseasSaleFcst,
            IRepository<PlatformFcstCollect, long> platformFcstCollect,
            IRepository<YearDemandManagementHistory, long> yearDemandManagementHistory,
            ISqlRepository<LocationDetail> locationDetail,
            ISqlRepository<WorkOrdMaster> workOrdMaster
            )
        {
            _ic_item = ic_item;
            _overallDemandPlanDtl = overallDemandPlanDtl;
            _prodLineDetail = prodLineDetail;
            _shopCalendarWorkCtr = shopCalendarWorkCtr;
            _qualityLineWorkDetail = qualityLineWorkDetail;
            _holidayMaster = holidayMaster;
            _monthlyProdCapacityMain = monthlyProdCapacityMain;
            _monthlyProdCapacityDtl = monthlyProdCapacityDtl;
            _unitOfWorkManager = unitOfWorkManager;
            _currentTenant = currentTenant;
            _standardItemModelSet = standardItemModelSet;
            _yearDemandManagement= yearDemandManagement;
            _domesticTerminalFcst= domesticTerminalFcst;
            _overseasSaleFcst = overseasSaleFcst;
            _platformFcstCollect= platformFcstCollect;
            _yearDemandManagementHistory= yearDemandManagementHistory;
            _locationDetail = locationDetail;
            _workOrdMaster = workOrdMaster;
        }
        #endregion

        ///// <summary>
        ///// 产能分析
        ///// </summary>
        ///// <param name="input"></param>
        ///// <returns></returns>
        ///// <exception cref="NotImplementedException"></exception>
        //public async Task<string> CapacityAnalysis(InputDto input)
        //{
        //    //1、获取数据
        //    //1.1 根据年、月、版本号获取整体需求计划明细
        //    List<OverallDemandPlanDtl> planDtls = _overallDemandPlanDtl.Select(p => p.Year == input.year && p.Month == input.month && p.Version == input.version && p.tenant_id == input.tenant_id && p.factory_id == input.factory_id).OrderBy(p => p.ProdLine).ThenBy(p => p.ProdRange).ThenBy(p => p.Model).ThenBy(p => p.PlanDate).ToList();
        //    //1.2 根据规格型号获取物料数据
        //    List<string> models = planDtls.Select(p => p.Model).Distinct().ToList();
        //    List<StandardItemModelSet> standards = _standardItemModelSet.Select(p => models.Contains(p.Model) && p.tenant_id == input.tenant_id && p.factory_id == input.factory_id);
        //    //1.3 根据物料编码获取产线数据
        //    List<ProdLineDetail> lines = _prodLineDetail.Select(p => standards.Select(m => m.ItemNumber).Contains(p.Part) && p.Domain == input.factory_id.ToString() && p.IsActive);
        //    //1.4 根据产线获取工作日历数据和产线休息配置数据
        //    List<ShopCalendarWorkCtr> calendars = _shopCalendarWorkCtr.Select(p => lines.Select(m => m.Line).Contains(p.ProdLine) && p.Domain == input.factory_id.ToString() && p.IsActive);
        //    List<QualityLineWorkDetail> lineWorks = _qualityLineWorkDetail.Select(p => lines.Select(m => m.Line).Contains(p.ProdLine) && p.Domain == input.factory_id.ToString() && p.IsActive);
        //    //1.5 获取当前年和下一年的节假日配置数据
        //    List<HolidayMaster> holidays = _holidayMaster.Select(p => (p.Dated.Value.Year == input.year || p.Dated.Value.Year == (input.year + 1)) && p.Domain == input.factory_id.ToString() && p.IsActive);

        //    //月度产能共识主表
        //    List<MonthlyProdCapacityMain> capacityMains = new List<MonthlyProdCapacityMain>();
        //    //月度产能共识明细表
        //    List<MonthlyProdCapacityDtl> capacityDtls = new List<MonthlyProdCapacityDtl>();
        //    foreach (var item in planDtls)
        //    {
        //        //获取当前产品的生产线
        //        var std = standards.FirstOrDefault(p => p.Model == item.Model);
        //        if (std == null)
        //        {
        //            new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("CapacityAnalysis", "规格型号【" + item.Model + "】没有维护标准物料数据", _currentTenant.Id.ToString());
        //            return "NO|规格型号【" + item.Model + "】没有维护标准物料数据，请维护后再发布！";
        //        }
        //        var curLines = lines.Where(p => p.Part == std.ItemNumber).OrderBy(p => p.Line).ToList();
        //        //过滤产线
        //        var distLines = curLines.Select(p => p.Line).Distinct().ToList();
        //        if (distLines.Count == 0)
        //        {
        //            new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("CapacityAnalysis", "物料【" + std.ItemNumber + "】没有维护产线数据", _currentTenant.Id.ToString());
        //            return "NO|物料【" + std.ItemNumber + "】没有维护产线数据，请维护后再发布！";
        //        }
        //        foreach (var dl in distLines)
        //        {
        //            //添加月度产能共识主表数据
        //            MonthlyProdCapacityMain main = new MonthlyProdCapacityMain();
        //            main.Id = help.NextId();
        //            main.Version = input.version;//整体需求计划版本号
        //            main.Year = Convert.ToInt16(item.PlanDate.Substring(0, 4));
        //            main.Month = Convert.ToInt16(item.PlanDate.Substring(4, 2));
        //            main.ProdRange = item.ProdRange;
        //            main.Model = item.Model;
        //            main.ProdQty = item.Qty;
        //            main.ProdLine = dl;
        //            main.Qty = item.Qty;
        //            main.tenant_id = item.tenant_id;
        //            main.factory_id = item.factory_id;
        //            main.Version = item.Version;
        //            main.CreateTime = DateTime.Now;
        //            capacityMains.Add(main);

        //            //添加月度产能共识产能效率数据
        //            MonthlyProdCapacityDtl dtl = new MonthlyProdCapacityDtl();
        //            dtl.MainId = main.Id;
        //            dtl.Version = input.version;
        //            dtl.Year = main.Year;
        //            dtl.Month = main.Month;
        //            dtl.ProdLine = dl;
        //            //计算每天工作时间
        //            var curCal = calendars.FirstOrDefault(p => p.ProdLine == dl);
        //            if (curCal == null)
        //            {
        //                continue;
        //            }
        //            dtl.DailyWorks = curCal.ShiftsHours1;
        //            dtl.FlightQty = 1;
        //            //计算当月工作天数
        //            var curHoildays = holidays.Where(p => p.Dated.Value.Year == main.Year && p.Dated.Value.Month == main.Month).ToList();
        //            //当月天数
        //            int days = DateTime.DaysInMonth(main.Year.Value, main.Month.Value);
        //            //当月周末天数
        //            int weekDays = CalcWeekDays(days, Convert.ToDateTime(main.Year.ToString() + "-" + main.Month.ToString() + "-01"));
        //            dtl.YearWorks = days - weekDays - curHoildays.Where(p => p.Ufld1 == "休假").Count() + curHoildays.Where(p => p.Ufld1 == "调班").Count();
        //            dtl.AvailableTimes = dtl.DailyWorks * dtl.FlightQty * dtl.YearWorks;
        //            //计算产线耗时
        //            var line = curLines.Where(p => p.Line == dl).OrderByDescending(p => p.Op).First();
        //            dtl.NeedWorks = line.Rate == 0 ? 0 : (Math.Ceiling(main.Qty.GetValueOrDefault() / line.Rate));
        //            dtl.ProdRate = 100;
        //            dtl.Rate = dtl.AvailableTimes == 0 ? 0 : Math.Floor(dtl.NeedWorks.GetValueOrDefault() / dtl.AvailableTimes.GetValueOrDefault() * 100);
        //            dtl.IsOverTime = dtl.NeedWorks > dtl.YearWorks ? "是" : "否";
        //            dtl.OverTimes = dtl.IsOverTime == "是" ? (dtl.NeedWorks - dtl.YearWorks) : 0;
        //            dtl.tenant_id = main.tenant_id;
        //            dtl.factory_id = main.factory_id;
        //            capacityDtls.Add(dtl);
        //        }
        //    }
        //    //保存数据
        //    using (var unitOfWork = _unitOfWorkManager.Begin(false, true))
        //    {
        //        try
        //        {
        //            //先删除数据
        //            _monthlyProdCapacityMain.Delete(p => p.tenant_id == input.tenant_id && p.factory_id == input.factory_id && p.Version.Contains(input.version.Substring(0, 7)));
        //            _monthlyProdCapacityDtl.Delete(p => p.tenant_id == input.tenant_id && p.factory_id == input.factory_id && p.Version.Contains(input.version.Substring(0, 7)));

        //            //插入数据
        //            _monthlyProdCapacityMain.Insert(capacityMains);
        //            _monthlyProdCapacityDtl.Insert(capacityDtls);
        //            await unitOfWork.CompleteAsync();
        //        }
        //        catch (Exception e)
        //        {
        //            unitOfWork.Dispose();
        //            new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("CapacityAnalysis", "生成【" + input.year + "年" + input.month + "月】月度产能共识失败：" + e.Message, _currentTenant.Id.ToString());
        //            return "NO|" + e.Message;
        //        };
        //    }
        //    return "OK|发布成功！";
        //}

        /// <summary>
        /// 计算当月有多少个周末
        /// </summary>
        /// <param name="days"></param>
        /// <param name="startDay"></param>
        /// <returns></returns>
        private int CalcWeekDays(int days, DateTime startDay)
        {
            int sumDays = 0;
            for (int i = 0; i < days; i++)
            {
                int weekDays = (int)startDay.AddDays(i).DayOfWeek;
                if (weekDays == 0 || weekDays == 6)
                {
                    sumDays++;
                }
            }
            return sumDays;
        }

        /// <summary>
        /// 月度需求预测更新
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        public async Task<string> DemandAnalysis(InputDto input)
        {
            //1.0 获取当前年年度生产需求大纲
            List<YearDemandManagement> yearDemands = _yearDemandManagement.GetListAsync(p => p.Year == input.year && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result.OrderBy(p=>p.OrderNum).ToList();
            //1.0 获取下一年年度生产大纲
            List<YearDemandManagement> nextYearDemands = _yearDemandManagement.GetListAsync(p => p.Year == (input.year+1) && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result.OrderBy(p => p.OrderNum).ToList();
            //记录历史版本:当前年+下一年
            var updateMonth = input.year.ToString() + "-" + input.month.ToString("00");
            var histories = ObjectMapper.Map<List<YearDemandManagement>, List<YearDemandManagementHistory>>(yearDemands);
            histories.ForEach(p => {
                p.UpdateMonth = updateMonth;
            });
            var nextHistories = ObjectMapper.Map<List<YearDemandManagement>, List<YearDemandManagementHistory>>(nextYearDemands);
            nextHistories.ForEach(p => {
                p.UpdateMonth = updateMonth;
            });
            //1.1、获取海外销售预测数据
            List<OverseasSaleFcst> overseasSales = _overseasSaleFcst.GetListAsync(p => p.Year == input.year && p.Month == input.month && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result;
            //1.2、获取平台预测收集数据
            List<PlatformFcstCollect> platformFcsts = _platformFcstCollect.GetListAsync(p => p.Year == input.year && p.Month == input.month && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result;
            //1.3、获取国内终端预测-T1汇总数据
            List<DomesticTerminalFcst> domesticFcst = _domesticTerminalFcst.GetListAsync(p =>p.TypeEnum == 2 && p.Year == input.year && p.Month == input.month && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result;
            //1.4、根据年度生产大纲，获取规格型号对应的补货周期
            List<string> allModels = yearDemands.Select(p=>p.Model).Distinct().ToList();
            if (nextYearDemands.Any())
            {
                allModels.AddRange(nextYearDemands.Select(p => p.Model).ToList());
                allModels = allModels.Distinct().ToList();
            }
            List<StandardItemModelSet> standards = _standardItemModelSet.GetListAsync(p => allModels.Contains(p.Model) && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result;
            //1.5、获取规格型号对应的标准SKU数据：获取最小包装单位
            List<string> itemNums = standards.Select(p=>p.ItemNumber).Distinct().ToList();
            List<ic_item> items = _ic_item.GetListAsync(p=> itemNums.Contains(p.number) && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id && !p.IsDeleted).Result;
            //1.6、获取成品库存、灭菌库存
            //List<LocationDetail> locations = _locationDetail.Select(p=>p.Domain == input.factory_id.ToString() && p.IsActive && itemNums.Contains(p.ItemNum));
            //1.7、获取在制库存:计划开始时间、计划结束时间都在本月，并且未关闭的工单
            //DateTime monStart = Convert.ToDateTime(input.year + "-" + input.month + "-01");
            //DateTime monEnd = monStart.AddMonths(1).AddDays(-1);
            //List<WorkOrdMaster> workOrds = _workOrdMaster.Select(p=>p.Domain);
            //1.9、获取节假日设置
            List<HolidayMaster> holidays = _holidayMaster.Select(p => (p.Dated.Value.Year == input.year || p.Dated.Value.Year == (input.year + 1)) && p.Domain == input.factory_id.ToString() && p.IsActive);

            #region 数据校验
            //1、校验当前年的年度生产大纲是否导入
            if (!yearDemands.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "请导入" + input.year + "年的年度生产需求后再操作！", _currentTenant.Id.ToString());
                return "NO|请导入" + input.year + "年的年度生产需求后再操作！";
            }
            //2、如果当前月份大于10，则需校验下一年的年度生产大纲
            if (input.month > 10 && !nextYearDemands.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "请导入" + (input.year+1) + "年的年度生产需求后再操作！", _currentTenant.Id.ToString());
                return "NO|请导入" + (input.year + 1) + "年的年度生产需求后再操作！";
            }
            //3、校验当前月份的海外销售预测是否导入
            if (!overseasSales.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "请导入" + input.year + "年" + input.month + "月海外销售预测后再操作！", _currentTenant.Id.ToString());
                return "NO|请导入" + input.year + "年" + input.month + "月海外销售预测后再操作！";
            }
            //4、校验当前月份的平台预测收集是否导入
            if (!platformFcsts.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "请导入" + input.year + "年" + input.month + "月平台需求收集后再操作！", _currentTenant.Id.ToString());
                return "NO|请导入" + input.year + "年" + input.month + "月平台需求收集后再操作！";
            }
            //5、校验当前月份的国内终端预测是否导入
            if (!domesticFcst.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "请导入" + input.year + "年" + input.month + "月国内终端预测后再操作！", _currentTenant.Id.ToString());
                return "NO|请导入" + input.year + "年" + input.month + "月国内终端预测后再操作！";
            }
            //6、校验终端+平台导入的规格型号是否已维护标准SKU
            if (allModels.Count() != standards.Count())
            {
                allModels.RemoveAll(standards.Select(p=>p.Model).ToList());
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "规格型号【" + string.Join(",",allModels) + "】没有维护标准SKU，请维护后再操作！", _currentTenant.Id.ToString());
                return "NO|规格型号【" + string.Join(",", allModels) + "】没有维护标准SKU，请维护后再操作！";
            }
            //7、校验是否已维护补货周期
            var zeros = standards.Where(p => p.ReplenishCycle == 0).ToList();
            if (zeros.Any())
            {
                new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "规格型号【" + string.Join(",", zeros.Select(p=>p.Model).ToList()) + "】没有维护补货周期，请维护后再操作！", _currentTenant.Id.ToString());
                return "NO|规格型号【" + string.Join(",", zeros.Select(p => p.Model).ToList()) + "】没有维护补货周期，请维护后再操作！";
            }
            #endregion

            //计算当前年月的N+1,N+2
            int newYear = input.month == 12 ? input.year + 1 : input.year;
            int newMonth = input.month == 12 ? 1 : input.month + 1;
            string strN1 = newYear.ToString() + "-" + newMonth.ToString("00");
            newYear = newMonth == 12 ? newYear + 1 : newYear;
            newMonth = newMonth == 12 ? 1 : newMonth + 1;
            string strN2 = newYear.ToString() + "-" + newMonth.ToString("00");

            //需要回写的数据
            List<YearDemandManagement> updates = new List<YearDemandManagement>();
            #region 计算国内终端预测,回写年度生产大纲
            //获取导入的T1、平台数据
            List<string> gnModels = new List<string>();
            if (domesticFcst.Any())
            {
                gnModels.AddRange(domesticFcst.Select(p => p.Model).ToList());
            }
            if (platformFcsts.Any())
            {
                gnModels.AddRange(platformFcsts.Select(p => p.Model).ToList());
            }
            gnModels = gnModels.Distinct().ToList();
            foreach (var gnModel in gnModels)
            {
                //N+1月
                YearDemandManagement monthN1 = new YearDemandManagement();
                //N+2月
                YearDemandManagement monthN2 = new YearDemandManagement();
                //获取需要回写的数据
                if (input.month < 11)
                {
                    monthN1 = yearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN1);
                    monthN2 = yearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN2);
                }
                if (input.month == 11)
                {
                    monthN1 = yearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN1);
                    monthN2 = nextYearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN2);
                }
                if (input.month == 12)
                {
                    monthN1 = nextYearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN1);
                    monthN2 = nextYearDemands.FirstOrDefault(p => p.Area == "国内" && p.Model == gnModel && p.PlanMonth == strN2);
                }
                if (monthN1 == null || monthN2 == null)
                {
                    continue;
                }
                //T1
                var sumT1N1 = domesticFcst.Where(p => p.Model == gnModel && p.PlanMonth == strN1).Sum(p=>p.Qty);
                var sumT1N2 = domesticFcst.Where(p => p.Model == gnModel && p.PlanMonth == strN2).Sum(p => p.Qty);
                //平台
                var sumPN1 = platformFcsts.Where(p => p.Model == gnModel && p.PlanMonth == strN1).Sum(p => p.Qty);
                var sumPN2 = platformFcsts.Where(p => p.Model == gnModel && p.PlanMonth == strN2).Sum(p => p.Qty);
                //合计
                var sumN1 = sumT1N1+ sumPN1;
                var sumN2 = sumT1N2 + sumPN2;

                //当前规格型号对应标准SKU的最小包装单位、补货周期
                var curStd = standards.FirstOrDefault(p => p.Model == gnModel);
                decimal packQty = 1m;//最小包装单位
                decimal cycle = 0m;//补货周期
                if (curStd != null)
                {
                    var curItem = items.FirstOrDefault(p => p.number == curStd.ItemNumber);
                    packQty = curItem == null ? 1 : (curItem.minpackqty.GetValueOrDefault() == 0.0m ? 1 : curItem.minpackqty.Value);
                    cycle = curStd.ReplenishCycle;
                }
                //TODO:获取成品库存、在制库存、灭菌库存，参与计算
                //N+1月使用N+2月的再订货点参与计算
                decimal rop = CalcRop(strN2+"-01", sumN2, packQty, holidays, cycle);
                monthN1.Qty = Math.Ceiling((sumN1 / 2 + sumN2 / 2 + rop - 0 - 0 - 0) / packQty) * packQty;
                //N+2月使用本月的需求量，下一月的工作天数
                rop = CalcRop(Convert.ToDateTime(strN2 + "-01").AddMonths(1).ToString("yyyy-MM-dd"), sumN2, packQty, holidays, cycle);
                monthN2.Qty = Math.Ceiling((sumN2 + rop - 0 - 0 - 0) / packQty) * packQty;
                //负数置0
                monthN1.Qty = monthN1.Qty < 0 ? 0m : monthN1.Qty;
                monthN2.Qty = monthN2.Qty < 0 ? 0m : monthN2.Qty;
                //记录需要回写的数据
                updates.Add(monthN1);
                updates.Add(monthN2);
            }
            #endregion

            #region 海外销售预测，回写年度生产大纲
            List<string> hwModels = overseasSales.Select(p => p.Model).Distinct().ToList();
            foreach (var hwModel in hwModels)
            {
                //N+1月
                YearDemandManagement monthN1 = new YearDemandManagement();
                //N+2月
                YearDemandManagement monthN2 = new YearDemandManagement();
                //获取需要回写的数据
                if (input.month < 11)
                {
                    monthN1 = yearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN1);
                    monthN2 = yearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN2);
                }
                if (input.month == 11)
                {
                    monthN1 = yearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN1);
                    monthN2 = nextYearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN2);
                }
                if (input.month == 12)
                {
                    monthN1 = nextYearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN1);
                    monthN2 = nextYearDemands.FirstOrDefault(p => p.Area == "海外" && p.Model == hwModel && p.PlanMonth == strN2);
                }
                if (monthN1 == null || monthN2 == null) {
                    continue;
                }
                var sumN1 = overseasSales.Where(p => p.Model == hwModel && p.PlanMonth == strN1).Sum(p => p.Qty);
                var sumN2 = overseasSales.Where(p => p.Model == hwModel && p.PlanMonth == strN2).Sum(p => p.Qty);

                //当前规格型号对应标准SKU的最小包装单位、补货周期
                var curStd = standards.FirstOrDefault(p => p.Model == hwModel);
                decimal packQty = 1m;//最小包装单位
                if (curStd != null)
                {
                    var curItem = items.FirstOrDefault(p => p.number == curStd.ItemNumber);
                    packQty = curItem == null ? 1 : (curItem.minpackqty.GetValueOrDefault() == 0.0m ? 1 : curItem.minpackqty.Value);
                }
                //海外生产需求量=当月的50%+下一月的50%-成品库存-在制库存-灭菌库存
                //TODO:获取成品库存、在制库存、灭菌库存，参与运算
                //计算N+1月,N+2月
                monthN1.Qty = Math.Ceiling((sumN1 / 2 + sumN2 / 2 - 0 - 0 - 0) / packQty) * packQty;
                monthN2.Qty = Math.Ceiling((sumN2 - 0 - 0 - 0) / packQty) *packQty; ;
                //负数置0
                monthN1.Qty = monthN1.Qty < 0 ? 0m : monthN1.Qty;
                monthN2.Qty = monthN2.Qty < 0 ? 0m : monthN2.Qty;
                //记录需要回写的数据
                updates.Add(monthN1);
                updates.Add(monthN2);
            }
            #endregion

            //保存数据
            using (var unitOfWork = _unitOfWorkManager.Begin(false, true))
            {
                try
                {
                    //判断是否存在当前年月的历史版本,不存在则插入
                    var dbHistory =  _yearDemandManagementHistory.GetListAsync(p=>p.Year ==input.year && p.UpdateMonth == updateMonth && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id).Result;
                    if (!dbHistory.Any())
                    {
                        await _yearDemandManagementHistory.InsertManyAsync(histories);
                    }
                    if (input.month > 10)
                    {
                        //判断是否存在下一年月的历史版本,不存在则插入
                        dbHistory = _yearDemandManagementHistory.GetListAsync(p =>(p.Year == input.year + 1) && p.UpdateMonth == updateMonth && p.tenant_id == input.tenant_id && p.company_id == input.company_id && p.factory_id == input.factory_id).Result;
                        if (!dbHistory.Any())
                        {
                            await _yearDemandManagementHistory.InsertManyAsync(nextHistories);
                        }
                    }
                    //回写年度生产大纲
                    await _yearDemandManagement.UpdateManyAsync(updates);
                    await unitOfWork.CompleteAsync();
                }
                catch (Exception e)
                {
                    unitOfWork.Dispose();
                    new NLogHelper("MonthlyCapacityLoadAppService").WriteLog("DemandAnalysis", "【" + input.year + "年" + input.month + "月】月度需求预测更新失败：" + e.Message, _currentTenant.Id.ToString());
                    return "NO|" + e.Message;
                };
            }
            return "OK|修订成功！";
        }

        /// <summary>
        /// 计算再订货点
        /// </summary>
        /// <param name="planMonth">计划年月(yyyy-MM-dd)</param>
        /// <param name="qty">需求量</param>
        /// <param name="qty">最小包装数量</param>
        /// <param name="holidays">节假日</param>
        /// <param name="replenishCycle">补货周期</param>
        /// <returns></returns>
        private decimal CalcRop(string planMonth,decimal qty,decimal packQty,List<HolidayMaster> holidays,decimal replenishCycle)
        {
            decimal rop = 0.0m;
            //获取当月天数
            int year = Convert.ToInt16(planMonth.Substring(0, 4));
            int month = Convert.ToInt16(planMonth.Substring(5, 2));
            int days = DateTime.DaysInMonth(year, month);
            //计算当前月的周末天数
            int weeks = CalcWeekDays(days, Convert.ToDateTime(planMonth));
            //获取当前年月的节假日设置
            var curHolidays = holidays.Where(p => p.Dated.Value.Year == year && p.Dated.Value.Month == month).ToList();
            //当月工作天数
            int workDays = days - weeks - curHolidays.Where(p => p.Ufld1 == "休假").Count() + curHolidays.Where(p => p.Ufld1 == "调班").Count();
            //rop = (需求量/月工作天数*补货周期)=>按照最小包装单位元整
            rop = Math.Ceiling(qty / workDays * replenishCycle / packQty) * packQty;
            return rop;
        }
    }
}