using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using WIDESEA_Common.CommonEnum;
using WIDESEA_Common.LocationEnum;
using WIDESEA_Core.BaseServices;
using WIDESEA_Core.Helper;
using WIDESEA_IBasicRepository;
using WIDESEA_IBasicService;
using WIDESEA_Model.Models;

namespace WIDESEA_BasicService
{
    public partial class LocationInfoService
    {

        double weightValue_GM = 0.25;

        private readonly static object _locker_GM = new object();
        static List<LocationCache> locationCaches_GM = new List<LocationCache>();

        /// <summary>
        /// 干膜仓货位分配
        /// </summary>
        /// <param name="roadwayNo">巷道号</param>
        /// <param name="palletType">
        /// 托盘类型 
        /// </param>
        /// <returns></returns>
        public Dt_LocationInfo? AssignLocation_GM(string roadwayNo, int palletType, Dt_PalletTypeInfo palletTypeInfo, string beRelocationCode = "")
        {
            lock (_locker_GM)
            {
                List<LocationCache> removeItems = locationCaches_GM.Where(x => (DateTime.Now - x.DateTime).TotalMinutes > 5).ToList();
                int count = removeItems.Count;
                for (int i = 0; i < count; i++)
                {
                    locationCaches_GM.Remove(removeItems[i]);
                }

                List<string> lockLocationCodes = locationCaches_GM.Select(x => x.LocationCode).ToList();

                List<Dt_LocationInfo> locationInfos = Repository.QueryData(x => x.RoadwayNo == roadwayNo);
                if (locationInfos == null || locationInfos.Count == 0)
                {
                    throw new Exception($"未找到该巷道的货位信息,巷道号:{roadwayNo}");
                }

                if (!string.IsNullOrEmpty(beRelocationCode))
                {
                    Dt_LocationInfo? beRelocation = locationInfos.FirstOrDefault(x => x.LocationCode == beRelocationCode);
                    if (beRelocation == null)
                    {
                        throw new Exception($"未找到货位信息");
                    }
                    int maxDepth = locationInfos.Max(x => x.Depth);
                    int mathCurrentRow = beRelocation.Row - Convert.ToInt32(Math.Ceiling(beRelocation.Row / maxDepth / 2.0)) * maxDepth * 2;
                    if (mathCurrentRow <= maxDepth)
                    {
                        locationInfos = locationInfos.Where(x => x.Row - Convert.ToInt32(Math.Ceiling(x.Row / maxDepth / 2.0)) * maxDepth * 2 <= maxDepth).ToList();
                    }
                    else
                    {
                        locationInfos = locationInfos.Where(x => x.Row - Convert.ToInt32(Math.Ceiling(x.Row / maxDepth / 2.0)) * maxDepth * 2 > maxDepth).ToList();
                    }
                }

                //已定义货位类型的货位
                List<Dt_LocationInfo> definedTypeLocations = locationInfos.Where(x => x.LocationType == palletType.ObjToInt()).ToList();

                //未定义类型的空货位
                List<Dt_LocationInfo> undefinedTypeEmptyLocations = locationInfos.Where(x => (x.EnableStatus == EnableStatusEnum.Normal.ObjToInt() || x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt()) && x.LocationStatus == LocationStatusEnum.Free.ObjToInt() && x.LocationType == LocationTypeEnum.Undefined.ObjToInt() && !lockLocationCodes.Contains(x.LocationCode)).OrderByDescending(x => x.Depth).ThenBy(x => x.Layer).ThenBy(x => x.Column).ThenBy(x => x.Row).ToList();

                List<Dt_LocationInfo> definedTypeEmptyLocations = locationInfos.Where(x => (x.EnableStatus == EnableStatusEnum.Normal.ObjToInt() || x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt()) && x.LocationStatus == LocationStatusEnum.Free.ObjToInt() && x.LocationType == palletType.ObjToInt() && !lockLocationCodes.Contains(x.LocationCode)).OrderByDescending(x => x.Depth).ThenBy(x => x.Layer).ThenBy(x => x.Column).ThenBy(x => x.Row).ToList();

                if ((locationInfos.Count * weightValue_GM >= definedTypeLocations.Count && undefinedTypeEmptyLocations.Any()) || !definedTypeEmptyLocations.Any())//如果已定义类型货位未超过比例，且有未定义类型的货位
                {
                    if (palletTypeInfo.LocaitonCount == 2)
                    {
                        if (palletTypeInfo.IsOdd)
                            undefinedTypeEmptyLocations = undefinedTypeEmptyLocations.Where(x => x.Column % 2 == 1).ToList();
                        else
                            undefinedTypeEmptyLocations = undefinedTypeEmptyLocations.Where(x => x.Column % 2 == 0).ToList();
                    }
                    for (int i = 0; i < undefinedTypeEmptyLocations.Count; i++)
                    {
                        Dt_LocationInfo undefinedTypeEmptyLocation = undefinedTypeEmptyLocations[i];
                        Dt_LocationInfo? locationInfo = GetUsableLocation_GM(locationInfos, undefinedTypeEmptyLocation, palletType, palletTypeInfo);
                        if (locationInfo != null)
                        {
                            locationCaches_GM.Add(new LocationCache { LocationCode = locationInfo.LocationCode, DateTime = DateTime.Now });
                            return locationInfo;
                        }
                    }
                }
                else
                {
                    for (int i = 0; i < definedTypeEmptyLocations.Count; i++)
                    {
                        Dt_LocationInfo definedTypeEmptyLocation = definedTypeEmptyLocations[i];
                        Dt_LocationInfo? locationInfo = GetUsableLocation_GM(locationInfos, definedTypeEmptyLocation, palletType, palletTypeInfo);
                        if (locationInfo != null)
                        {
                            locationCaches_GM.Add(new LocationCache { LocationCode = locationInfo.LocationCode, DateTime = DateTime.Now });
                            return locationInfo;
                        }
                    }
                }
                return null;
            }
        }

        /// <summary>
        /// 获取可用货位(测试架仓)
        /// </summary>
        /// <param name="locationInfos"></param>
        /// <param name="emptyLocation"></param>
        /// <param name="palletType"></param>
        /// <returns></returns>
        private Dt_LocationInfo? GetUsableLocation_GM(List<Dt_LocationInfo> locationInfos, Dt_LocationInfo emptyLocation, int palletType, Dt_PalletTypeInfo palletTypeInfo)
        {
            if (palletTypeInfo.LocaitonCount == 2)
            {
                if (palletTypeInfo.IsOdd && emptyLocation.Column % 2 != 1 || !palletTypeInfo.IsOdd && emptyLocation.Column % 2 != 0)
                    return null;

                Dt_LocationInfo? nearLocation = locationInfos.FirstOrDefault(x => x.Row == emptyLocation.Row && x.Layer == emptyLocation.Layer && x.Depth == emptyLocation.Depth && x.Column == emptyLocation.Column + 1);
                if (nearLocation != null && DepthLocationIsEmpty_BC(locationInfos, nearLocation) != null)
                {
                    Dt_LocationInfo? locationInfo = DepthLocationIsEmpty_BC(locationInfos, emptyLocation);
                    if (locationInfo != null)
                    {
                        return locationInfo;
                    }
                }
            }
            else
            {
                Dt_LocationInfo? locationInfo = DepthLocationIsEmpty_BC(locationInfos, emptyLocation);
                if (locationInfo != null)
                {
                    return locationInfo;
                }
            }
            return null;
        }


        /// <summary>
        /// 判断不同深度的同组货位状态是否为空闲空位(测试架仓)
        /// </summary>
        /// <param name="locationInfos"></param>
        /// <param name="emptyLocation"></param>
        /// <returns></returns>
        private Dt_LocationInfo? DepthLocationIsEmpty_GM(List<Dt_LocationInfo> locationInfos, Dt_LocationInfo emptyLocation)
        {
            List<Dt_LocationInfo> locations = GetGroupLocations(locationInfos, emptyLocation);

            bool moreDepthFlag = false;
            bool littleDepthFlag = false;

            if (emptyLocation.LocationType == 0)
            {
                List<Dt_LocationInfo> moreDepth = locations.Where(x => x.Depth > emptyLocation.Depth).ToList();
                moreDepthFlag = moreDepth.FirstOrDefault(x => x.LocationStatus != LocationStatusEnum.InStock.ObjToInt() && (x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt() || x.EnableStatus == EnableStatusEnum.Normal.ObjToInt()) && x.LocationType != 0) == null;//查询大于当前货位深度的集合里是否有状态不为有货的货位，如果是true，则表示深货位有未被使用的情况

                List<Dt_LocationInfo> littleDepth = locations.Where(x => x.Depth <= emptyLocation.Depth).ToList();
                littleDepthFlag = littleDepth.FirstOrDefault(x => x.LocationStatus != LocationStatusEnum.Free.ObjToInt() && (x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt() || x.EnableStatus == EnableStatusEnum.Normal.ObjToInt()) && x.LocationType != 0) == null; //查询小于当前货位深度的集合里是否有状态不为空，且禁用状态不为禁用以及只入的货位，如果是true，则表示浅货位被使用或者被禁用的情况
            }
            else
            {
                List<Dt_LocationInfo> moreDepth = locations.Where(x => x.Depth > emptyLocation.Depth).ToList();
                moreDepthFlag = moreDepth.FirstOrDefault(x => x.LocationStatus != LocationStatusEnum.InStock.ObjToInt() && (x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt() || x.EnableStatus == EnableStatusEnum.Normal.ObjToInt()) && x.LocationType != emptyLocation.LocationType) == null;//查询大于当前货位深度的集合里是否有状态不为有货的货位，如果是true，则表示深货位有未被使用的情况

                List<Dt_LocationInfo> littleDepth = locations.Where(x => x.Depth <= emptyLocation.Depth).ToList();
                littleDepthFlag = littleDepth.FirstOrDefault(x => x.LocationStatus != LocationStatusEnum.Free.ObjToInt() && (x.EnableStatus == EnableStatusEnum.OnlyIn.ObjToInt() || x.EnableStatus == EnableStatusEnum.Normal.ObjToInt()) && x.LocationType != emptyLocation.LocationType) == null; //查询小于当前货位深度的集合里是否有状态不为空，且禁用状态不为禁用以及只入的货位，如果是true，则表示浅货位被使用或者被禁用的情况
            }

            if (moreDepthFlag && littleDepthFlag)
            {
                return emptyLocation;
            }

            return null;
        }
    }
}