using SqlSugar;
using WIDESEA_Common.StockEnum;
using WIDESEA_Core;
using WIDESEA_DTO.MES;
using WIDESEA_DTO.Stock;
using WIDESEA_IBasicService;
using WIDESEA_IStockService;
using WIDESEA_Model.Models;

namespace WIDESEA_StockService
{
    /// <summary>
    /// 库存服务聚合实现类
    /// </summary>
    public class StockService : IStockService
    {
        /// <summary>
        /// 库存明细服务
        /// </summary>
        public IStockInfoDetailService StockInfoDetailService { get; }

        /// <summary>
        /// 库存信息服务
        /// </summary>
        public IStockInfoService StockInfoService { get; }

        /// <summary>
        /// 库存明细历史服务
        /// </summary>
        public IStockInfoDetail_HtyService StockInfoDetail_HtyService { get; }

        /// <summary>
        /// 库存历史服务
        /// </summary>
        public IStockInfo_HtyService StockInfo_HtyService { get; }

        /// <summary>
        /// Mes接口服务
        /// </summary>
        public IMesService _mesService { get; }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="stockInfoDetailService">库存明细服务</param>
        /// <param name="stockInfoService">库存信息服务</param>
        /// <param name="stockInfoDetail_HtyService">库存明细历史服务</param>
        /// <param name="stockInfo_HtyService">库存历史服务</param>
        public StockService(
            IStockInfoDetailService stockInfoDetailService,
            IStockInfoService stockInfoService,
            IStockInfoDetail_HtyService stockInfoDetail_HtyService,
            IStockInfo_HtyService stockInfo_HtyService,
            IMesService mesService)
        {
            StockInfoDetailService = stockInfoDetailService;
            StockInfoService = stockInfoService;
            StockInfoDetail_HtyService = stockInfoDetail_HtyService;
            StockInfo_HtyService = stockInfo_HtyService;
            _mesService = mesService;
        }

        /// <summary>
        /// 在事务中执行操作
        /// </summary>
        private async Task<WebResponseContent> ExecuteWithinTransactionAsync(Func<Task<WebResponseContent>> operation)
        {
            var db = StockInfoService.Repository.Db as SqlSugarClient;
            if (db == null)
            {
                return WebResponseContent.Instance.Error("Database context does not support transactions");
            }

            var ownsTransaction = db.Ado.Transaction == null;
            try
            {
                if (ownsTransaction)
                {
                    db.BeginTran();
                }

                var result = await operation();
                if (result?.Status == true)
                {
                    if (ownsTransaction)
                    {
                        db.CommitTran();
                    }
                    return result;
                }

                if (ownsTransaction)
                {
                    db.RollbackTran();
                }
                return result ?? WebResponseContent.Instance.Error("Transaction failed");
            }
            catch
            {
                if (ownsTransaction)
                {
                    db.RollbackTran();
                }
                throw;
            }
        }

        /// <summary>
        /// 组盘
        /// </summary>
        public async Task<WebResponseContent> GroupPalletAsync(StockDTO stock)
        {
            WebResponseContent content = new WebResponseContent();
            try
            {
                var now = DateTime.Now;
                var details = stock.Details.Select(item => new Dt_StockInfoDetail
                {
                    MaterielCode = "电芯",
                    MaterielName = "电芯",
                    StockQuantity = item.Quantity,
                    Unit = "PCS",
                    Creater = "system",
                    OrderNo = "111",
                    ProductionDate = now.ToString(),
                    EffectiveDate = now.AddYears(1).ToString(),
                    SerialNumber = item.CellBarcode,
                    InboundOrderRowNo = item.Channel,
                    Status = StockStatusEmun.组盘暂存.GetHashCode(),
                }).ToList();

                var bindRequest = new BindContainerRequest
                {
                    ContainerCode = stock?.TargetPalletNo,
                    EquipmentCode = "STK-GROUP-001",
                    ResourceCode = "STK-GROUP-001",
                    LocalTime = now,
                    OperationType = 0, // 0代表组盘
                    ContainerSfcList = details.Select(d => new ContainerSfcItem
                    {
                        Sfc = d.SerialNumber,
                        Location = d.InboundOrderRowNo.ToString(),
                    }).ToList()
                };

                return await ExecuteWithinTransactionAsync(async () =>
                {
                    var existingStock = StockInfoService.Repository.QueryFirst(s => s.PalletCode == stock.TargetPalletNo);
                    var result = false;
                    if (existingStock != null)
                    {
                        details.ForEach(d => d.StockId = existingStock.Id);
                        result = await StockInfoDetailService.Repository.AddDataAsync(details) > 0;
                        return result ? content.OK("组盘成功") : content.Error("组盘失败");
                    }

                    var entity = new Dt_StockInfo
                    {
                        PalletCode = stock.TargetPalletNo,
                        //WarehouseId = stock.WarehouseId > 0 ? stock.WarehouseId : 1,
                        WarehouseId = 1,
                        StockStatus = StockStatusEmun.组盘暂存.GetHashCode(),
                        Creater = "system",
                        Details = details
                    };
                    var mesResult = _mesService.BindContainer(bindRequest);
                    if (mesResult == null || !mesResult.IsSuccess)
                    {
                        return content.Error($"组盘成功，但MES绑定失败: {mesResult?.ErrorMessage ?? "未知错误"}");
                    }

                    result = StockInfoService.Repository.AddData(entity, x => x.Details);
                    return result ? content.OK("组盘成功") : content.Error("组盘失败");
                });
            }
            catch (Exception ex)
            {
                return content.Error($"组盘失败: {ex.Message}");
            }
        }

        /// <summary>
        /// 换盘
        /// </summary>
        public async Task<WebResponseContent> ChangePalletAsync(StockDTO stock)
        {
            WebResponseContent content = new WebResponseContent();
            try
            {
                if (stock == null ||
                    string.IsNullOrWhiteSpace(stock.TargetPalletNo) ||
                    string.IsNullOrWhiteSpace(stock.SourcePalletNo) ||
                    string.Equals(stock.SourcePalletNo, stock.TargetPalletNo, StringComparison.OrdinalIgnoreCase))
                {
                    return content.Error("源托盘号与目标托盘号相同");
                }

                return await ExecuteWithinTransactionAsync(async () =>
                {
                    var sourceStock = await StockInfoService.Repository.QueryDataNavFirstAsync(s => s.PalletCode == stock.SourcePalletNo);
                    if (sourceStock == null) return content.Error("源托盘不存在");

                    var targetStock = StockInfoService.Repository.QueryFirst(s => s.PalletCode == stock.TargetPalletNo);
                    if (targetStock == null)
                    {
                        var newStock = new Dt_StockInfo
                        {
                            PalletCode = stock.TargetPalletNo,
                            WarehouseId = sourceStock.WarehouseId,
                            StockStatus = StockStatusEmun.组盘暂存.GetHashCode(),
                            Creater = "system",
                        };

                        var newId = StockInfoService.Repository.AddData(newStock);
                        if (newId <= 0) return content.Error("换盘失败");

                        targetStock = newStock;
                        targetStock.Id = newId;
                    }

                    var serialNumbers = stock.Details.Select(d => d.Channel).Distinct().ToList();
                    if (!serialNumbers.Any()) return content.Error("未找到有效的序列号");

                    var detailEntities = StockInfoDetailService.Repository.QueryData(
                        d => d.StockId == sourceStock.Id && serialNumbers.Contains(d.InboundOrderRowNo));
                    if (!detailEntities.Any()) return content.Error("未找到有效的库存明细");

                    if (await StockInfoDetail_HtyService.Repository.AddDataAsync(CreateDetailHistory(detailEntities, "换盘")) <= 0)
                        return content.Error("换盘历史记录保存失败");

                    if (await StockInfo_HtyService.Repository.AddDataAsync(CreateStockHistory(new[] { sourceStock, targetStock }, "换盘")) <= 0)
                        return content.Error("换盘历史记录保存失败");

                    detailEntities.ForEach(d => d.StockId = targetStock.Id);
                    var result = await StockInfoDetailService.Repository.UpdateDataAsync(detailEntities);
                    if (!result) return content.Error("换盘失败");
                    return content.OK("换盘成功");
                });
            }
            catch (Exception ex)
            {
                return content.Error($"换盘失败: {ex.Message}");
            }
        }

        /// <summary>
        /// 拆盘
        /// </summary>
        public async Task<WebResponseContent> SplitPalletAsync(StockDTO stock)
        {
            WebResponseContent content = new WebResponseContent();
            try
            {
                if (stock == null || string.IsNullOrWhiteSpace(stock.SourcePalletNo))
                    return content.Error("源托盘号不能为空");

                return await ExecuteWithinTransactionAsync(async () =>
                {
                    var sourceStock = StockInfoService.Repository.QueryFirst(s => s.PalletCode == stock.SourcePalletNo);
                    if (sourceStock == null) return content.Error("源托盘不存在");

                    var serialNumbers = stock.Details.Select(d => d.CellBarcode).Distinct().ToList();
                    if (!serialNumbers.Any())
                    {
                        serialNumbers = sourceStock.Details
                                                    .Where(x => stock.Details.Any(d => d.Channel == x.InboundOrderRowNo))
                                                    .Select(x => x.SerialNumber)
                                                    .ToList();
                    }

                    var detailEntities = StockInfoDetailService.Repository.QueryData(
                        d => d.StockId == sourceStock.Id && serialNumbers.Contains(d.SerialNumber));
                    if (!detailEntities.Any()) return content.Error("未找到有效的库存明细");

                    if (await StockInfoDetail_HtyService.Repository.AddDataAsync(CreateDetailHistory(detailEntities, "拆盘")) <= 0)
                        return content.Error("拆盘历史记录保存失败");

                    if (await StockInfo_HtyService.Repository.AddDataAsync(CreateStockHistory(new[] { sourceStock }, "拆盘")) <= 0)
                        return content.Error("拆盘历史记录保存失败");

                    var result = await StockInfoDetailService.Repository.DeleteDataAsync(detailEntities);
                    if (!result) return content.Error("拆盘失败");
                    return content.OK("拆盘成功");
                });
            }
            catch (Exception ex)
            {
                return content.Error($"拆盘失败: {ex.Message}");
            }
        }

        /// <summary>
        /// 堆垛机换盘后更新库存信息（清空库位信息）
        /// </summary>
        /// <param name="stock"></param>
        /// <returns></returns>
        public async Task<WebResponseContent> UpdateStockInfoAsync(StockInfoDTO stock)
        {
            WebResponseContent content = new WebResponseContent();
            if (string.IsNullOrWhiteSpace(stock.PalletCode)) return content.Error("托盘号不能为空");

            var existingStock = StockInfoService.Repository.QueryFirst(s => s.PalletCode == stock.PalletCode);
            if (existingStock == null) return content.Error("托盘信息不存在");

            existingStock.LocationCode = "";
            existingStock.LocationId = 0;

            var result = await StockInfoService.Repository.UpdateDataAsync(existingStock);
            if (!result) return content.Error("更新库存信息失败");
            return content.OK("更新库存信息成功");
        }

        private static List<Dt_StockInfoDetail_Hty> CreateDetailHistory(IEnumerable<Dt_StockInfoDetail> details, string operateType)
        {
            var now = DateTime.Now;
            return details.Select(d => new Dt_StockInfoDetail_Hty
            {
                SourceId = d.Id,
                OperateType = operateType,
                InsertTime = now,
                StockId = d.StockId,
                MaterielCode = d.MaterielCode,
                MaterielName = d.MaterielName,
                OrderNo = d.OrderNo,
                BatchNo = d.BatchNo,
                ProductionDate = d.ProductionDate,
                EffectiveDate = d.EffectiveDate,
                SerialNumber = d.SerialNumber,
                StockQuantity = d.StockQuantity,
                OutboundQuantity = d.OutboundQuantity,
                Status = d.Status,
                Unit = d.Unit,
                InboundOrderRowNo = d.InboundOrderRowNo,
                Remark = d.Remark,
                Creater = d.Creater,
                CreateDate = d.CreateDate,
                Modifier = d.Modifier,
                ModifyDate = d.ModifyDate
            }).ToList();
        }

        private static List<Dt_StockInfo_Hty> CreateStockHistory(IEnumerable<Dt_StockInfo> stocks, string operateType)
        {
            var now = DateTime.Now;
            return stocks.Select(s => new Dt_StockInfo_Hty
            {
                SourceId = s.Id,
                OperateType = operateType,
                InsertTime = now,
                PalletCode = s.PalletCode,
                PalletType = s.PalletType,
                LocationCode = s.LocationCode,
                WarehouseId = s.WarehouseId,
                StockStatus = s.StockStatus,
                Remark = s.Remark,
                Creater = s.Creater,
                CreateDate = s.CreateDate,
                Modifier = s.Modifier,
                ModifyDate = s.ModifyDate,
                LocationId = s.LocationId,
                OutboundDate = s.OutboundDate
            }).ToList();
        }
    }
}