using DS.Module.Core;
using DS.Module.SqlSugar;
using DS.Module.UserModule;
using DS.WMS.Core.Op.Dtos;
using DS.WMS.Core.Op.Entity;
using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using NLog;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Mapster;
using DS.WMS.Core.Op.Interface;
using Microsoft.Extensions.Logging;

namespace DS.WMS.Core.Op.Method
{
    /// <summary>
    /// 舱位库存
    /// </summary>
    public class BookingSlotStockService: IBookingSlotStockService
    {
        private readonly IServiceProvider _serviceProvider;
        private readonly ISqlSugarClient db;
        private readonly IUser user;
        private readonly ISaasDbService saasService;

        private static readonly NLog.Logger Logger = LogManager.GetCurrentClassLogger();

        /// <summary>
        /// 
        /// </summary>
        /// <param name="serviceProvider"></param>
        public BookingSlotStockService(IServiceProvider serviceProvider)
        {
            _serviceProvider = serviceProvider;
            db = _serviceProvider.GetRequiredService<ISqlSugarClient>();
            user = _serviceProvider.GetRequiredService<IUser>();
            saasService = _serviceProvider.GetRequiredService<ISaasDbService>();
        }

        #region 计算舱位库存
        /// <summary>
        /// 计算舱位库存
        /// </summary>
        /// <param name="paraObj">请求参数</param>
        /// <returns>返回回执</returns>
        public async Task<DataResult<string>> BookingSlotStock(BookingSlotStockUpdateModel paraObj)
        {
            Logger.Log(NLog.LogLevel.Info, $"收到更新库存订阅请求：{ JsonConvert.SerializeObject(paraObj)}");

            if (string.IsNullOrEmpty(paraObj.Vessel)
                || string.IsNullOrEmpty(paraObj.Voyno)
                || string.IsNullOrEmpty(paraObj.ContractNo)
                || string.IsNullOrEmpty(paraObj.BookingSlotType)
                || string.IsNullOrEmpty(paraObj.CarrierCode)
                || string.IsNullOrEmpty(paraObj.PortLoadId)
                || string.IsNullOrEmpty(paraObj.PortDischargeId))
            {
                Logger.Log(NLog.LogLevel.Info, $"收到更新库存订阅请求：部分参数存在空值，结束");
                return DataResult<string>.FailedData(string.Empty);
            }

            var tenantDb = saasService.GetBizDbScopeById(user.TenantId);

            var baseList = await tenantDb.Queryable<BookingSlotBase>()
                                          .Where(x => !x.Deleted
                                           //&& x.TenantId == paraObj.TenantId
                                           && x.Vessel == paraObj.Vessel
                                           && x.Voyno == paraObj.Voyno
                                           && x.ContractNo == paraObj.ContractNo
                                           && x.BookingSlotType == paraObj.BookingSlotType
                                           && x.CarrierCode == paraObj.CarrierCode
                                           && x.PortLoadCode == paraObj.PortLoadId
                                           && x.PortDischargeCode == paraObj.PortDischargeId)
                                          .OrderByDescending(x => x.UpdateTime)
                                          .ToListAsync();

            var stockObj = await tenantDb.Queryable<BookingSlotStock>()
                                         .FirstAsync(x => !x.Deleted
                                         //&& x.TenantId == paraObj.TenantId
                                         && x.Vessel == paraObj.Vessel
                                           && x.Voyno == paraObj.Voyno
                                           && x.ContractNo == paraObj.ContractNo
                                           && x.BookingSlotType == paraObj.BookingSlotType
                                           && x.CarrierCode == paraObj.CarrierCode
                                           && x.PortLoadId == paraObj.PortLoadId
                                           && x.PortDischargeId == paraObj.PortDischargeId);

            if (!baseList.Any())
            {
                if (stockObj != null)
                {
                    // 从库存表删除这7项维度的库存数据
                    await tenantDb.Deleteable<BookingSlotStock>(stockObj).ExecuteCommandAsync();
                }

                return DataResult<string>.FailedData(string.Empty);
            }

            var isInsert = stockObj == null;
            var idTemp = stockObj?.Id;

            stockObj = baseList[0].Adapt(stockObj);

            if (isInsert)
            {
                stockObj.Id = 0;
            }
            else
            {
                stockObj.Id = (long)idTemp;
            }

            stockObj.PortLoadId = baseList[0].PortLoadCode;
            stockObj.PortDischargeId = baseList[0].PortDischargeCode;

            // 总舱位数
            stockObj.TotalOrders = baseList.Count;

            // 取消舱位数
            stockObj.CancelNum = baseList.Count(x => x.IsCancellation);

            // 舱位主键列表
            var slotBaseIdList = baseList.Select(x => x.Id).ToList();

            // 总的箱型箱量
            var ctnAllList = await tenantDb.Queryable<BookingSlotCtn>()
                                  .Where(x => !x.Deleted && slotBaseIdList.Contains(x.SlotId))
                                  .GroupBy(x => x.CtnAll)
                                  .Select(x => new
                                  {
                                      x.CtnAll,
                                      CTNNUM = SqlFunc.AggregateSum(x.CtnNum)
                                  }).ToListAsync();
            stockObj.CtnStat = string.Join(' ', ctnAllList.Select(c => c.CtnAll + "*" + c.CTNNUM));

            // 总箱数
            stockObj.TotalCtns = ctnAllList.Sum(x => x.CTNNUM);

            // 订舱引用表主键与订舱主表主键
            var lstAllocKeyList = await tenantDb.Queryable<BookingSlotAllocation>()
                                                //.Filter(null, true)
                                                .Where(x => !x.Deleted && slotBaseIdList.Contains(x.BookingSlotId))
                                                .Select(x => new { x.Id, x.BookingSlotId })
                                                .ToListAsync();

            // 如果舱位未被引用过，可以直接确定库存
            if (!lstAllocKeyList.Any())
            {
                // 已使用舱位数
                stockObj.UseNum = 0;
                // 已使用的箱型箱量
                stockObj.UseCtnStat = "";
                // 已使用的箱数
                stockObj.UseCtnsNum = 0;

                // 剩余的箱型箱量
                stockObj.RemainCtnStat = stockObj.CtnStat;
                // 剩余箱数
                stockObj.RemainCtnsNum = stockObj.TotalCtns;
            }
            else
            {
                // 已使用舱位数
                //stockObj.USE_NUM = lstAllocKeyList.DistinctBy(x => x.BOOKING_SLOT_ID).Count();

                // 订舱引用表主键列表
                var allocIdList = lstAllocKeyList.Select(x => x.Id).ToList();
                var allocSlotIdList = lstAllocKeyList.Select(x => x.BookingSlotId).Distinct().ToList();
                var userCtnNumList = await tenantDb.Queryable<BookingSlotAllocationCtn>().Filter(null, true)
                                                             .Where(x => !x.Deleted && allocIdList.Contains(x.SlotAllocId))
                                                             .GroupBy(x => x.SlotAllocId)
                                                             .Select(x => new
                                                             {
                                                                 x.SlotAllocId,
                                                                 CTNNUM = SqlFunc.AggregateSum(x.CtnNum)
                                                             }).ToListAsync();
                var hasCtnNumList = await tenantDb.Queryable<BookingSlotCtn>().Filter(null, true)
                                                            .Where(x => !x.Deleted && allocSlotIdList.Contains(x.SlotId))
                                                            .GroupBy(x => x.SlotId)
                                                            .Select(x => new
                                                            {
                                                                x.SlotId,
                                                                CTNNUM = SqlFunc.AggregateSum(x.CtnNum)
                                                            })
                                                            .ToListAsync();
                var useNum = 0;
                foreach (long slotId in allocSlotIdList)
                {
                    List<long> temp1 = lstAllocKeyList.Where(x => x.BookingSlotId == slotId).Select(x => x.Id).ToList();
                    var userNum = userCtnNumList.Where(x => temp1.Contains(x.SlotAllocId)).Sum(x => x.CTNNUM);
                    var hasNum = hasCtnNumList.Where(x => x.SlotId == slotId).Sum(x => x.CTNNUM);
                    if (userNum >= hasNum)
                    {
                        useNum++;
                    }
                }
                // 已使用舱位数
                stockObj.UseNum = useNum;

                // 已使用的箱型箱量
                var userCtnList = await tenantDb.Queryable<BookingSlotAllocationCtn>()
                                               .Filter(null, true)
                                               .Where(x => !x.Deleted && allocIdList.Contains(x.SlotAllocId))
                                               .GroupBy(x => x.CtnAll)
                                               .Select(x => new
                                               {
                                                   x.CtnAll,
                                                   CTNNUM = SqlFunc.AggregateSum(x.CtnNum)
                                               }).ToListAsync();
                stockObj.UseCtnStat = string.Join(' ', userCtnList.Select(c => c.CtnAll + "*" + c.CTNNUM));

                // 已使用的箱数
                stockObj.UseCtnsNum = userCtnList.Sum(x => x.CTNNUM);

                // 剩余的箱型箱量
                Dictionary<string, int> remainCtnList = new(ctnAllList.Count);
                foreach (var item in ctnAllList)
                {
                    var useItem = userCtnList.FirstOrDefault(x => x.CtnAll == item.CtnAll);
                    if (useItem == null)
                    {
                        remainCtnList.Add(item.CtnAll, item.CTNNUM);
                    }
                    else
                    {
                        int remainCtnNum = item.CTNNUM - useItem.CTNNUM;
                        if (remainCtnNum > 0)
                        {
                            remainCtnList.Add(item.CtnAll, remainCtnNum);
                        }
                    }
                }
                stockObj.RemainCtnStat = string.Join(' ', remainCtnList.Select(x => x.Key + "*" + x.Value));

                // 剩余箱数
                stockObj.RemainCtnsNum = stockObj.TotalCtns - stockObj.UseCtnsNum;
            }

            if (isInsert)
            {
                await tenantDb.Insertable<BookingSlotStock>(stockObj).ExecuteCommandAsync();
            }
            else
            {
                await tenantDb.Updateable<BookingSlotStock>(stockObj).ExecuteCommandAsync();
            }

            return DataResult<string>.Success(string.Empty);
        }
        #endregion

        #region 重新计算某租户下面所有的库存
        /// <summary>
        /// 重新计算某租户下面所有的库存
        /// </summary>
        /// <returns></returns>
        public async Task RefreshAllStock()
        {
            var tenantDb = saasService.GetBizDbScopeById(user.TenantId);

            var n = await tenantDb.Deleteable<BookingSlotStock>().ExecuteCommandAsync();

            var group = await tenantDb.Queryable<BookingSlotBase>()
                .Where(x => x.Deleted == false)
                .GroupBy(x => new
                {
                    x.Vessel,
                    x.Voyno,
                    x.CarrierCode,
                    x.ContractNo,
                    x.BookingSlotType,
                    x.PortLoadCode,
                    x.PortDischargeCode,
                }).Select(x => new
                {
                    x.Vessel,
                    x.Voyno,
                    x.CarrierCode,
                    x.ContractNo,
                    x.BookingSlotType,
                    x.PortLoadCode,
                    x.PortDischargeCode,
                }).ToListAsync();
            foreach (var item in group)
            {
                BookingSlotStockUpdateModel model = new BookingSlotStockUpdateModel { 
                    Vessel = item.Vessel,
                    Voyno = item.Voyno,
                    CarrierCode = item.CarrierCode,
                    ContractNo = item.ContractNo,
                    BookingSlotType = item.BookingSlotType,
                    PortLoadId = item.PortLoadCode,
                    PortDischargeId = item.PortDischargeCode,
                };
                await BookingSlotStock(model);
            }
        }
        #endregion
    }
}