OA2023/OASystem/OASystem.Infrastructure/Repositories/Groups/ProcessOverviewRepository.cs

using AutoMapper;
using Newtonsoft.Json;
using OASystem.Domain;
using OASystem.Domain.Dtos.Groups;
using OASystem.Domain.Entities.Groups;
using OASystem.Domain.Entities.Resource;
using System.Reflection;

namespace OASystem.Infrastructure.Repositories.Groups
{
    /// <summary>
    /// 团组流程总览表仓储
    /// </summary>
    public class ProcessOverviewRepository : BaseRepository<Grp_ProcessOverview, Grp_ProcessOverview>
    {
        private readonly IMapper _mapper;
        private readonly DelegationInfoRepository _groupRep;
        public ProcessOverviewRepository(SqlSugarClient sqlSugar, IMapper mapper, DelegationInfoRepository groupRep) : base(sqlSugar)
        {
            _mapper = mapper;
            _groupRep = groupRep;
        }

        #region 团组流程

        /// <summary>
        /// 基础数据初始化-团组流程
        /// </summary>
        /// <param name="groupId"></param>
        /// <param name="currUserId"></param>
        /// <returns></returns>
        public async Task<List<Grp_ProcessOverview>> ProcessDataInitAsync(int groupId, int currUserId, List<string> visaCountries)
        {
            var processs = new List<Grp_ProcessOverview>();

            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null) return processs;

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .Where(p => p.IsDel == 0 && p.GroupId == groupId)
                .ToListAsync();
            if (existingProcesses.Any()) return processs;

            #region 商邀报批流程
            var custInfo = await _sqlSugar.Queryable<Grp_TourClientList>()
                .Where(c => c.DiId == groupId && c.IsDel == 0)
                .OrderByDescending(c => c.CreateTime)
                .FirstAsync();
            string oaNode2Tips = "客户提供完整名单后，2周内取得邀请函（翻译件）。";
            if (custInfo != null)
            {
                oaNode2Tips = $"请于{custInfo.CreateTime.AddDays(14):yyyy年MM月dd日}内完成该项工作(客户提供完整名单后，2周内取得邀请函（翻译件）)";
            }

            var oaNode4Tips = $"请于{groupInfo.VisitDate.AddDays(-5):yyyy年MM月dd日}内完成该项工作(按进度实际公务活动落实情况，出发前5日落实公务)";
            var oaNode7Tips = $"请于{groupInfo.VisitEndDate.AddDays(-5):yyyy年MM月dd日}内完成该项工作(团组结束前完成)";
            processs.Add(
                Grp_ProcessOverview.Create(groupId, 1, GroupProcessType.Invitation, ProcessStatus.InProgress, currUserId,
                new List<Grp_ProcessNode>()
                    {
                        Grp_ProcessNode.Create(1, "报批基础资料准备","更新报批行程和请示，提供其他报批所需材料，4个工作日内完成。",ProcessStatus.InProgress, true,false,false,false,currUserId),
                        Grp_ProcessNode.Create(2, "报批邀请函资料准备",oaNode2Tips, ProcessStatus.InProgress, false,false,false,false,currUserId),
                        Grp_ProcessNode.Create(3, "获得批件","提供完整的报批全套资源。",ProcessStatus.InProgress, false,false,false,false, currUserId ),
                        Grp_ProcessNode.Create(4, "对接公务",oaNode4Tips,ProcessStatus.InProgress, false,false,false,false, currUserId),
                        Grp_ProcessNode.Create(5, "参与翻译对接","",ProcessStatus.InProgress, false,false,false,true, currUserId),
                        Grp_ProcessNode.Create(6, "商邀文案配合","",ProcessStatus.InProgress, false,false,false,false, currUserId),
                        Grp_ProcessNode.Create(7, "票据上传(相关票据)",oaNode7Tips,ProcessStatus.InProgress, false,false,true,false, currUserId),
                    }));
            #endregion

            #region 签证流程

            //单独处理签证流程节点
            var visaNodes = new List<Grp_ProcessNode>();

            if (visaCountries != null && visaCountries.Count > 0)
            {
                var visaDefualtNodes = new List<VisaProcessNode>();
                for (int i = 1; i < visaCountries.Count + 1; i++)
                {
                    visaDefualtNodes.Add(VisaProcessNode.Info(i, visaCountries[i - 1].ToString()));
                }

                var visaNode2Tips = $"请于{groupInfo.VisitDate:yyyy年MM月dd日}内完成该项工作(按进度实际签证办理落实情况，团组出发前上传票据。)";
                visaNodes.Add(Grp_ProcessNode.Create(1, "签证信息", "", ProcessStatus.InProgress, true, false, false, false, currUserId, JsonConvert.SerializeObject(visaDefualtNodes)));
                visaNodes.Add(Grp_ProcessNode.Create(2, "票据上传(明细表、费用票据、保单及超支费用账单)", visaNode2Tips, ProcessStatus.InProgress, false, false, true, false, currUserId));
            }

            processs.Add(Grp_ProcessOverview.Create(groupId, 2, GroupProcessType.Visa, ProcessStatus.UnStarted, currUserId, visaNodes));
            #endregion

            #region 机票流程
            string airNode1Tips = "建团后打勾确认出团的时候开始24小时内。";
            if (groupInfo.Step == 1 || groupInfo.Step == 2)
            {
                if (groupInfo.StepOperationTime.HasValue)
                {
                    airNode1Tips = $"请于{groupInfo.StepOperationTime.Value.AddDays(1):yyyy年MM月dd日}内完成该项工作(建团后打勾确认出团的时候开始24小时内)";
                }
            }

            var airNode3Tips = $"完成机票采购确认（含预算核对、出票确认等）";
            var airNode5Tips = $"请于{groupInfo.VisitDate.AddDays(-5):yyyy年MM月dd日}内完成该项工作(团组出发前5日)";
            var airNode7Tips = $"请于{groupInfo.VisitEndDate.AddDays(5):yyyy年MM月dd日}内完成该项工作(团组归国后5个工作日内)";
            var airNode8Tips = $"1. 票据上传(机票报销蓝联、行程单及机票说明) \r\n 2. 请于{groupInfo.VisitEndDate.AddDays(10):yyyy年MM月dd日}内完成该项工作(团组归国后10个工作日内) *按机票报价*0.999折扣出具机票报销蓝联、行程单及机票说明";

            processs.Add(
                Grp_ProcessOverview.Create(groupId, 3, GroupProcessType.AirTicket, ProcessStatus.InProgress, currUserId,
                new List<Grp_ProcessNode>()
                    {
                        Grp_ProcessNode.Create(1, "初步拟定航程方案及价格",   airNode1Tips, ProcessStatus.InProgress, true,false,false,false, currUserId ),
                        Grp_ProcessNode.Create(2, "机票占位、续位",   "", ProcessStatus.UnStarted, false,false,false,false,currUserId ),
                        Grp_ProcessNode.Create(3, "完成机票采购确认",  airNode3Tips, ProcessStatus.UnStarted,false,false,false,false, currUserId),
                        Grp_ProcessNode.Create(4, "进行出票操作并核查信息", "", ProcessStatus.UnStarted, false,false,false,false, currUserId),
                        Grp_ProcessNode.Create(5, "机票已出",  airNode5Tips, ProcessStatus.UnStarted, false,false,false,false, currUserId),
                        Grp_ProcessNode.Create(6, "完成机票选座", "", ProcessStatus.UnStarted, false,false,false,false,currUserId),
                        Grp_ProcessNode.Create(7, "票据上传(机票超支费用账单)", airNode7Tips, ProcessStatus.UnStarted, false,false,true,false, currUserId),
                        Grp_ProcessNode.Create(8, "票据上传", airNode8Tips, ProcessStatus.UnStarted, false,false,true,false, currUserId)
                    }
                )
             );
            #endregion

            #region 酒店流程

            string hotelNode1Tips = "1. 筛选并按照预算标准，对目标酒店进行询价、比价、谈价 \r\n2. 建团后打勾确认出团的时候开始2个工作日。";
            if (groupInfo.Step == 1 || groupInfo.Step == 2)
            {
                if (groupInfo.StepOperationTime.HasValue)
                {
                    hotelNode1Tips = $"请于{groupInfo.StepOperationTime.Value.AddDays(2):yyyy年MM月dd日}内完成该项工作(建团后打勾确认出团的时候开始2个工作日)";
                }
            }

            var hotelNode4Tips = $"1.行前再次确认酒店订单、付款状态及入住安排 \r\n 2.请于{groupInfo.VisitDate.AddDays(-5):yyyy年MM月dd日}内完成该项工作(团组出发前5天)";
            var hotelNode5Tips = $"1.行程结束后整理酒店发票(含超支费用发票)与结算 \r\n 2.请于{groupInfo.VisitEndDate.AddDays(5):yyyy年MM月dd日}内完成该项工作(团组结束后5天内)";

            processs.Add(
                Grp_ProcessOverview.Create(groupId, 4, GroupProcessType.Hotel, ProcessStatus.InProgress, currUserId,
                     new List<Grp_ProcessNode>()
                    {
                        Grp_ProcessNode.Create(1, "按照预算，询价、比价、谈价", hotelNode1Tips, ProcessStatus.InProgress, true, false, false, false, currUserId),
                        Grp_ProcessNode.Create(2, "获取酒店确认函与入住名单核对", "", ProcessStatus.UnStarted, false, false, false,false, currUserId ),
                        Grp_ProcessNode.Create(3, "预订酒店并录入OA",  "", ProcessStatus.UnStarted,false, false, false,false,currUserId ),
                        Grp_ProcessNode.Create(4, "行前再次确认酒店相关情况",  hotelNode4Tips,ProcessStatus.UnStarted, false, false, false,false,currUserId ),
                        Grp_ProcessNode.Create(5, "行程结束后整理酒店发票与结算",  hotelNode5Tips, ProcessStatus.UnStarted, false, false, true,false, currUserId ),
                    }
                )
            );
            #endregion

            #region 地接流程
            var airTripCodeInfo = await _sqlSugar.Queryable<Air_TicketBlackCode>()
                .Where(x => x.IsDel == 0 && x.DiId == groupId)
                .OrderByDescending(x => x.CreateTime)
                .FirstAsync();
            string opNode1Tips = $"机票行程代码最后一段录入后1个工作日内。";
            if (airTripCodeInfo != null)
            {
                opNode1Tips = $"请于{airTripCodeInfo.CreateTime.AddDays(1):yyyy年MM月dd日}内完成该项工作(机票行程代码最后一段录入后1个工作日内)";
            }


            string opNode2Tips = $"1.联系并询价地接、餐厅、用车、景点等供应商 \r\n 2. 请于{groupInfo.CreateTime.AddDays(7):yyyy年MM月dd日}内完成该项工作(建团完成后7个工作日内)";
            string opNode3Tips = $"请于{groupInfo.CreateTime.AddDays(10):yyyy年MM月dd日}内完成该项工作(上一步往后3个工作日内)";
            string opNode4Tips = $"请于{groupInfo.CreateTime.AddDays(12):yyyy年MM月dd日}内完成该项工作(上一步往后2个工作日内)";

            var backListInfo = await _sqlSugar.Queryable<Grp_InvertedList>().Where(x => x.DiId == groupId && x.IsDel == 0).FirstAsync();
            string opNode5Tips = $"1.制定最终《行程单》及《出行手册》 \r\n2. 倒推表里开行前会 -3天。";
            if (backListInfo != null)
            {

                if (DateTime.TryParse(backListInfo.PreTripMeetingDt, out DateTime dateTime))
                {
                    opNode5Tips = $"请于{dateTime.AddDays(-3):yyyy年MM月dd日}内完成该项工作(倒推表里开行前会 -3天)";
                }
            }

            string opNode7Tips = $"请于{groupInfo.VisitEndDate.AddDays(5):yyyy年MM月dd日}内完成该项工作(团组归国后5个工作日内) *上传最终报批行程，确定城市间交通最终版报价分配；地接账单（清楚标注超时及其他项超支费用）、地接交通费用原始票据、城市间交通明细表；";
            processs.Add(
                Grp_ProcessOverview.Create(groupId, 5, GroupProcessType.LocalGuide, ProcessStatus.InProgress, currUserId,
                     new List<Grp_ProcessNode>()
                    {
                        Grp_ProcessNode.Create(1,"根据机票方案出框架行程", opNode1Tips,ProcessStatus.InProgress, true, false, false,false,currUserId ),
                        Grp_ProcessNode.Create(2,"联系并询价地接相关的供应商", opNode2Tips,ProcessStatus.UnStarted, false, false, false,false, currUserId ),
                        Grp_ProcessNode.Create(3,"提交供应商报价及比价表", opNode3Tips, ProcessStatus.UnStarted, false, false, false, false,currUserId),
                        Grp_ProcessNode.Create(4,"执行采购流程", opNode4Tips, ProcessStatus.UnStarted, false, false, false,false, currUserId),
                        Grp_ProcessNode.Create(5,"制定最终行程单及出行手册", opNode5Tips, ProcessStatus.UnStarted, false, false, false,false, currUserId ),
                        Grp_ProcessNode.Create(6,"送机", "", ProcessStatus.UnStarted, false, false, false,false, currUserId ),
                        Grp_ProcessNode.Create(7,"最终版报批行程、票据上传", opNode7Tips, ProcessStatus.UnStarted, false, false, true, false,currUserId )
                    }
                )
            );

            #endregion

            #region 费用结算流程
            var feeNode3Tips = $"1.整理统计团组超支费用、三公报销资料给到各单位 \r\n 2. 请于{groupInfo.VisitEndDate.AddDays(12):yyyy年MM月dd日}内完成该项工作(团组归国后12个工作日内)";
            processs.Add(
                Grp_ProcessOverview.Create(groupId, 6, GroupProcessType.FeeSettle, ProcessStatus.InProgress, currUserId,
                    new List<Grp_ProcessNode>()
                    {
                        Grp_ProcessNode.Create(1, "城市间交通报批金额核定", "团组报批前", ProcessStatus.InProgress, true, true, false,false,currUserId ),
                        Grp_ProcessNode.Create(2, "团组全程各段机票打票金额的核定", "团组报批后、订票前", ProcessStatus.UnStarted, false, false, false,false,currUserId ),
                        Grp_ProcessNode.Create(3, "整理统计相关财务资料给到各单位", feeNode3Tips, ProcessStatus.UnStarted, false, false, false,false,currUserId ),
                        Grp_ProcessNode.Create(4, "费用结算完毕", "", ProcessStatus.UnStarted, false, false, false,false, currUserId ),
                    }
                )
            );
            #endregion

            return processs;
        }

        /// <summary>
        /// 团组流程初始化
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ProcessInitAsync(int groupId, int currUserId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .Where(p => p.IsDel == 0 && p.GroupId == groupId)
                .ToListAsync();
            if (existingProcesses.Any())
            {
                return new Result { Code = 400, Msg = "该团组的流程已存在" };
            }

            //处理签证国家
            var visaCountries = _groupRep.GroupSplitCountry(groupInfo.VisitCountry);

            // 定义默认的流程节点
            var processs = await ProcessDataInitAsync(groupId, currUserId, visaCountries);

            _sqlSugar.BeginTran();

            foreach (var item in processs)
            {
                var processId = await _sqlSugar.Insertable(item).ExecuteReturnIdentityAsync();

                if (processId < 1)
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组流程进度总览表添加失败！" };
                }
                item.Id = processId;
                // 记录流程日志
                await LogProcessOpAsync(null, item, "Create", currUserId);

                var nodes = item.Nodes.Select((nodeDto, index) => new Grp_ProcessNode
                {
                    ProcessId = processId,
                    NodeName = nodeDto.NodeName,
                    NodeOrder = nodeDto.NodeOrder,
                    OverallStatus = nodeDto.OverallStatus,
                    NodeDescTips = nodeDto.NodeDescTips,
                    //Country = nodeDto.Country,
                    IsCurrent = nodeDto.IsCurrent,
                    IsAssist = nodeDto.IsAssist,
                    IsPart = nodeDto.IsPart,
                    IsFileUp = nodeDto.IsFileUp,
                    Remark = nodeDto.Remark
                }).ToList();

                var nodeIds = await _sqlSugar.Insertable(nodes).ExecuteCommandAsync();
                if (nodeIds < 1)
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组流程进度流程节点添加失败！" };
                }

                //设置节点ID
                nodes = await _sqlSugar.Queryable<Grp_ProcessNode>().Where(x => x.IsDel == 0 && x.ProcessId == processId).ToListAsync();

                //记录节点日志
                foreach (var node in nodes)
                {
                    await LogNodeOpAsync(null, node, "Create", currUserId);
                }

            }
            _sqlSugar.CommitTran();
            return new Result { Code = 200, Msg = "添加成功！" }; ;
        }

        /// <summary>
        /// 获取团组的所有流程及节点详情
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ProcessesDetailsAsync(int groupId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ProcessOverview>().Where(p => p.IsDel == 0 && p.GroupId == groupId).ToListAsync();
            if (!existingProcesses.Any())
            {
                //新建团组流程
                var res = await ProcessInitAsync(groupId, 4);
                if (res.Code != 200)
                {
                    return res;
                }
            }

            var users = await _sqlSugar.Queryable<Sys_Users>().Select(x => new { x.Id, x.CnName }).ToListAsync();

            var processData = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .Where(p => p.GroupId == groupId && p.IsDel == 0)
                .Mapper(p => p.Nodes, p => p.Nodes.First().ProcessId)
                .ToListAsync();

            // 预先构建用户字典，提升查询性能
            var userDict = users.ToDictionary(u => u.Id, u => u.CnName);

            var processes = processData.Select(p =>
            {
                var orderedNodes = p.Nodes.OrderBy(n => n.NodeOrder).ToList();
                var totalNodes = orderedNodes.Count;

                return new
                {
                    p.Id,
                    p.GroupId,
                    p.ProcessType,
                    ProcessName = p.ProcessType.GetEnumDescription(),
                    Nodes = orderedNodes.Select((n, index) =>
                    {
                        var isLastNode = index == totalNodes - 1;
                        var isSecondLastNode = index == totalNodes - 2;
                        var isFifthStep = index == 4;

                        // 计算按钮状态
                        bool isEnaAssistBtn = p.ProcessType == GroupProcessType.FeeSettle && n.NodeOrder == 1;

                        // 文件上传按钮启用规则
                        bool isEnaFileUpBtn = false;
                        // 是否参与按钮启用
                        bool isEnaPartBtn = false;

                        // 规则1：商邀流程第五步启用参与按钮
                        if (p.ProcessType == GroupProcessType.Invitation && isFifthStep)
                        {
                            isEnaPartBtn = true;
                        }
                        // 规则2：机票流程倒数第二步启用上传按钮
                        else if (p.ProcessType == GroupProcessType.AirTicket && isSecondLastNode)
                        {
                            isEnaFileUpBtn = true;
                        }
                        // 规则3：默认流程节点最后一步启用上传按钮
                        else if (isLastNode && p.ProcessType != GroupProcessType.FeeSettle)
                        {
                            isEnaFileUpBtn = true;
                        }

                        // 处理签证子节点
                        List<VisaProcessNode> visaSubNodes = new();
                        if (p.ProcessType == GroupProcessType.Visa && n.NodeOrder == 1)
                        {
                            visaSubNodes = JsonConvert.DeserializeObject<List<VisaProcessNode>>(n.Remark ?? "[]")
                                ?? new List<VisaProcessNode>();
                        }

                        // 获取操作人姓名（使用字典提升性能）
                        string operatorName = "-";
                        if (n.Operator.HasValue && userDict.TryGetValue(n.Operator.Value, out var name))
                        {
                            operatorName = name;
                        }

                        return new
                        {
                            n.Id,
                            n.ProcessId,
                            n.NodeOrder,
                            n.NodeName,
                            n.OverallStatus,
                            StatusText = n.OverallStatus.GetEnumDescription(),
                            Operator = operatorName,
                            OpeateTime = n.OperationTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "-",
                            ActualDone = n.ActualDone?.ToString("yyyy-MM-dd HH:mm:ss") ?? "",
                            n.NodeDescTips,
                            isEnaAssistBtn,  // 是否启用财务流程首节点协助按钮
                            n.IsAssist,      // 财务流程首节点 存储值
                            isEnaFileUpBtn,  // 是否启用上传文件按钮
                            n.IsFileUp,      // 票据上传节点 存储值
                            isEnaPartBtn,    // 是否启用参与按钮
                            n.IsPart,        // 参与按钮 存储值
                            visaSubNodes     // 签证节点类型使用
                        };
                    }).ToList()
                };
            }).ToList();

            return new Result { Code = 200, Data = processes, Msg = "查询成功！" };
        }

        /// <summary>
        /// 更新节点状态
        /// </summary>
        /// <param name="nodeId">节点ID</param>
        /// <param name="currUserId">当前用户ID</param>
        /// <param name="processStatus">流程状态，默认为已完成</param>
        /// <returns>操作结果</returns>
        public async Task<Result> UpdateNodeStatusAsync(int nodeId, int currUserId, ProcessStatus processStatus = ProcessStatus.Completed)
        {
            try
            {
                // 使用事务确保数据一致性
                var result = await _sqlSugar.Ado.UseTranAsync(async () =>
                {
                    // 1. 获取并验证节点
                    var node = await _sqlSugar.Queryable<Grp_ProcessNode>()
                        .FirstAsync(n => n.Id == nodeId && n.IsDel == 0) ?? throw new BusinessException("当前节点不存在或已被删除。");

                    // 2. 获取流程信息，检查ProcessType
                    var process = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                        .FirstAsync(p => p.Id == node.ProcessId && p.IsDel == 0) ?? throw new BusinessException("关联的流程不存在。");

                    // 3. 节点操作验证
                    ValidateNodeOperation(node, processStatus);

                    // 4. 存储更新前的值
                    var before = new Grp_ProcessNode()
                    {
                        Id = node.Id,
                        ProcessId = node.ProcessId,
                        NodeName = node.NodeName,
                        NodeOrder = node.NodeOrder,
                        OverallStatus = node.OverallStatus,
                        Operator = node.Operator,
                        OperationTime = node.OperationTime,
                        IsCurrent = node.IsCurrent,
                    };

                    // 5. 更新节点状态
                    node.OverallStatus = processStatus;
                    node.Operator = currUserId;
                    node.OperationTime = DateTime.Now;

                    var updateCount = await _sqlSugar.Updateable(node)
                        .UpdateColumns(n => new
                        {
                            n.OverallStatus,
                            n.Operator,
                            n.OperationTime
                        })
                        .ExecuteCommandAsync();

                    if (updateCount == 0)
                    {
                        throw new BusinessException("节点状态更新失败。");
                    }

                    // 6. 记录节点日志
                    await LogNodeOpAsync(before, node, "Update", currUserId);

                    // 7. 如果是完成当前节点，处理流程流转
                    //    当前节点或者流程类型为商邀可进入状态流转
                    if (processStatus == ProcessStatus.Completed && (node.IsCurrent || process.ProcessType == GroupProcessType.Invitation))
                    {
                        await ProcessCurrentNodeCompletionAsync(node, currUserId);
                    }

                    return new Result { Code = StatusCodes.Status200OK, Msg = "操作成功。" };
                });

                return result.IsSuccess ? result.Data : new Result
                {
                    Code = StatusCodes.Status500InternalServerError,
                    Msg = result.ErrorMessage
                };
            }
            catch (BusinessException ex)
            {
                // 业务异常
                return new Result { Code = StatusCodes.Status400BadRequest, Msg = ex.Message };
            }
            catch (Exception ex)
            {
                // 系统异常
                return new Result { Code = StatusCodes.Status500InternalServerError, Msg = "系统错误，请稍后重试" };
            }
        }

        /// <summary>
        /// 验证节点操作权限
        /// </summary>
        /// <param name="node">流程节点</param>
        /// <param name="targetStatus">目标状态</param>
        private static void ValidateNodeOperation(Grp_ProcessNode node, ProcessStatus targetStatus)
        {
            // 验证节点是否已完成
            if (node.OverallStatus == ProcessStatus.Completed)
            {
                throw new BusinessException("当前节点已完成，不可重复操作。");
            }

            // 验证状态流转是否合法（可选）
            //if (targetStatus != ProcessStatus.Completed)
            //{
            //    throw new BusinessException("未开始或者进行中的节点只能重新完成，不可进行其他操作。");
            //}

            // 验证是否尝试将已完成节点改为其他状态
            if (node.OverallStatus == ProcessStatus.Completed && targetStatus != ProcessStatus.Completed)
            {
                throw new BusinessException("已完成节点不可修改状态。");
            }
        }

        /// <summary>
        /// 处理当前节点完成后的流程流转
        /// </summary>
        private async Task ProcessCurrentNodeCompletionAsync(Grp_ProcessNode currentNode, int currUserId)
        {
            // 1. 获取流程信息
            var process = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .FirstAsync(p => p.Id == currentNode.ProcessId && p.IsDel == 0);

            if (process == null)
            {
                throw new BusinessException("关联的流程不存在。");
            }

            var processBefore = new Grp_ProcessOverview()
            {
                Id = process.Id,
                GroupId = process.GroupId,
                ProcessOrder = process.ProcessOrder,
                ProcessType = process.ProcessType,
                OverallStatus = process.OverallStatus,
                StartTime = process.StartTime,
                EndTime = process.EndTime,
                UpdatedUserId = process.UpdatedUserId,
                UpdatedTime = process.UpdatedTime
            };

            // 2. 取消当前节点的当前状态
            var before = new Grp_ProcessNode()
            {
                Id = currentNode.Id,
                ProcessId = currentNode.ProcessId,
                NodeName = currentNode.NodeName,
                NodeOrder = currentNode.NodeOrder,
                OverallStatus = currentNode.OverallStatus,
                Operator = currentNode.Operator,
                OperationTime = currentNode.OperationTime,
                IsCurrent = currentNode.IsCurrent,
            };
            currentNode.IsCurrent = false;
            await _sqlSugar.Updateable(currentNode)
                .UpdateColumns(n => new { n.IsCurrent })
                .ExecuteCommandAsync();
            // 2.1 记录节点日志 取消当前节点状态
            await LogNodeOpAsync(before, currentNode, "Update", currUserId);

            // 3. 查找并激活下一个节点 商邀节点单独处理
            if (process.ProcessType == GroupProcessType.Invitation)
            {
                var invitaNodeStatus = await _sqlSugar.Queryable<Grp_ProcessNode>()
                    .Where(x => x.IsDel == 0 && x.ProcessId == currentNode.ProcessId)
                    .ToListAsync();

                int completedCount = invitaNodeStatus.Count(n => n.OverallStatus == ProcessStatus.Completed);
                int nodeCount = invitaNodeStatus.Count;
                if (completedCount == nodeCount) //全部子节点完成，该流程完成
                {
                    process.OverallStatus = ProcessStatus.Completed;
                    process.EndTime = DateTime.Now;
                }
            }
            else
            {
                var nextNode = await _sqlSugar.Queryable<Grp_ProcessNode>()
                .Where(n => n.ProcessId == currentNode.ProcessId
                         && n.NodeOrder == currentNode.NodeOrder + 1
                         && n.IsDel == 0)
                .FirstAsync();

                if (nextNode != null)
                {
                    var nextNodeBefore = new Grp_ProcessNode()
                    {
                        Id = nextNode.Id,
                        ProcessId = nextNode.ProcessId,
                        NodeName = nextNode.NodeName,
                        NodeOrder = nextNode.NodeOrder,
                        OverallStatus = nextNode.OverallStatus,
                        Operator = nextNode.Operator,
                        OperationTime = nextNode.OperationTime,
                        IsCurrent = nextNode.IsCurrent,
                    };

                    // 激活下一个节点
                    nextNode.IsCurrent = true;
                    nextNode.OverallStatus = ProcessStatus.InProgress;
                    //nextNode.Operator = currUserId;
                    //nextNode.OperationTime = DateTime.Now;

                    var updateCount = await _sqlSugar.Updateable(nextNode)
                        .UpdateColumns(n => new
                        {
                            n.IsCurrent,
                            n.OverallStatus,
                            n.Operator,
                            n.OperationTime
                        })
                        .ExecuteCommandAsync();

                    if (updateCount == 0)
                    {
                        throw new BusinessException("激活下一节点失败");
                    }

                    // 1.1 记录节点日志 激活下一节点当前节点状态
                    await LogNodeOpAsync(nextNodeBefore, nextNode, "Start", currUserId);

                    // 更新流程状态为进行中
                    process.OverallStatus = ProcessStatus.InProgress;
                }
                else
                {
                    // 下一节点不存在，整个流程完成
                    process.OverallStatus = ProcessStatus.Completed;
                    process.EndTime = DateTime.Now;
                }
            }

            // 4. 更新流程信息
            process.UpdatedUserId = currUserId;
            process.UpdatedTime = DateTime.Now;

            var processUpdateCount = await _sqlSugar.Updateable(process)
                .UpdateColumns(p => new
                {
                    p.OverallStatus,
                    p.EndTime,
                    p.UpdatedUserId,
                    p.UpdatedTime
                })
                .ExecuteCommandAsync();

            if (processUpdateCount == 0)
            {
                throw new BusinessException("流程状态更新失败。");
            }

            //记录流程日志
            await LogProcessOpAsync(processBefore, process, "Update", currUserId);
        }

        /// <summary>
        /// 更新签证节点信息及状态
        /// </summary>
        /// <param name="dto">签证节点更新数据传输对象</param>
        /// <returns>操作结果</returns>
        public async Task<Result> UpdateVisaNodeDetailsAsync(GroupProcessUpdateVisaNodeDetailsDto dto)
        {
            // 1. 获取并验证节点和流程
            var node = await _sqlSugar.Queryable<Grp_ProcessNode>()
                .FirstAsync(n => n.Id == dto.NodeId && n.IsDel == 0)
                ?? throw new BusinessException("当前节点不存在或已被删除。");

            var process = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .FirstAsync(p => p.Id == node.ProcessId && p.IsDel == 0)
                ?? throw new BusinessException("当前流程不存在或已被删除。");

            if (process.ProcessType != GroupProcessType.Visa)
            {
                throw new BusinessException("当前流程节点不为签证流程，不可编辑。");
            }

            // 2. 检查签证子节点 字段信息是否全部填写
            var allSubNodesCompleted = dto.VisaSubNodes?.All(subNode => EntityExtensions.IsCompleted(subNode)) ?? false;

            // 2.1 存储更新前流程及节点信息
            var nodeBefore = new Grp_ProcessNode()
            {
                Id = node.Id,
                ProcessId = node.ProcessId,
                NodeName = node.NodeName,
                NodeOrder = node.NodeOrder,
                OverallStatus = node.OverallStatus,
                Operator = node.Operator,
                OperationTime = node.OperationTime,
                IsCurrent = node.IsCurrent,
            };

            var processBefore = new Grp_ProcessOverview()
            {
                Id = process.Id,
                GroupId = process.GroupId,
                ProcessOrder = process.ProcessOrder,
                ProcessType = process.ProcessType,
                OverallStatus = process.OverallStatus,
                StartTime = process.StartTime,
                EndTime = process.EndTime,
                UpdatedUserId = process.UpdatedUserId,
                UpdatedTime = process.UpdatedTime
            };

            // 3. 更新节点信息
            node.Remark = JsonConvert.SerializeObject(dto.VisaSubNodes);
            node.Operator = dto.CurrUserId;
            node.OperationTime = DateTime.Now;

            if (allSubNodesCompleted)
            {
                node.OverallStatus = ProcessStatus.Completed;

                process.OverallStatus = ProcessStatus.Completed;
                process.EndTime = DateTime.Now;
                process.UpdatedUserId = dto.CurrUserId;
                process.UpdatedTime = DateTime.Now;

                // 更新流程状态
                await _sqlSugar.Updateable(process)
                    .UpdateColumns(p => new
                    {
                        p.OverallStatus,
                        p.EndTime,
                        p.UpdatedUserId,
                        p.UpdatedTime
                    })
                    .ExecuteCommandAsync();
                //记录流程日志
                await LogProcessOpAsync(processBefore, process, "Update", dto.CurrUserId);
            }

            // 4. 保存节点更新
            await _sqlSugar.Updateable(node)
                .UpdateColumns(n => new
                {
                    n.Remark,
                    n.Operator,
                    n.OperationTime,
                    n.OverallStatus
                })
                .ExecuteCommandAsync();
            //记录节点日志
            await LogNodeOpAsync(nodeBefore, node, "Update", dto.CurrUserId);

            return new Result { Code = 200, Msg = "节点信息更新成功。" };
        }

        /// <summary>
        /// 更新节点信息及状态
        /// </summary>
        /// <param name="dto">签证节点更新数据传输对象</param>
        /// <returns>操作结果</returns>
        public async Task<Result> SetActualDoneAsync(GroupProcessSetActualDoneDto dto)
        {
            int nodeId = dto.NodeId;
            var isDtNul = DateTime.TryParse(dto.ActualDone, out DateTime actualDone);
            int currUserId = dto.CurrUserId;
            bool isAssist = dto.IsAssist;
            bool isFileUp = dto.IsFileUp;
            bool isPart = dto.IsPart;

            // 1. 获取并验证节点和流程
            var node = await _sqlSugar.Queryable<Grp_ProcessNode>()
                .FirstAsync(n => n.Id == nodeId && n.IsDel == 0)
                ?? throw new BusinessException("当前节点不存在或已被删除。");

            var process = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .FirstAsync(p => p.Id == node.ProcessId && p.IsDel == 0)
                ?? throw new BusinessException("当前流程不存在或已被删除。");

            // 2.1 存储更新前流程及节点信息
            var nodeBefore = new Grp_ProcessNode()
            {
                Id = node.Id,
                ProcessId = node.ProcessId,
                NodeName = node.NodeName,
                NodeOrder = node.NodeOrder,
                OverallStatus = node.OverallStatus,
                Operator = node.Operator,
                OperationTime = node.OperationTime,
                IsCurrent = node.IsCurrent
            };

            if (isDtNul)
            {
                node.ActualDone = actualDone;
            }

            node.IsAssist = isAssist;
            node.IsFileUp = isFileUp;
            node.IsPart = isPart;

            // 3. 保存节点更新
            await _sqlSugar.Updateable(node)
                .UpdateColumns(n => new
                {
                    ActualDone = isDtNul ? node.ActualDone : null,
                    n.IsAssist,
                    n.IsFileUp,
                    n.IsPart,
                })
                .ExecuteCommandAsync();
            //记录节点日志
            await LogNodeOpAsync(nodeBefore, node, "Update", currUserId);

            return new Result { Code = 200, Msg = "实际操作时间设置成功。" };
        }

        #endregion

        #region 会务流程

        /// <summary>
        /// 设置节点流程模板
        /// </summary>
        /// <param name="groupId"></param>
        /// <param name="currUserId"></param>
        /// <returns></returns>
        public async Task<List<Grp_ConfProcessOverview>> DefaultConfProcessTemps(int groupId, int currUserId)
        {
            var temps = new List<Grp_ConfProcessOverview>();

            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null) return temps;

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .Where(p => p.IsDel == 0 && p.GroupId == groupId)
                .ToListAsync();
            if (existingProcesses.Any()) return temps;

            #region 会务流程
            //参与人 participators
            var defaultParticipators = new List<ParticipatorInfo>() { new() { UserId = 213, UserName = "李新江" } };

            var defaultPorc1 = new List<Grp_ConfProcessNode>() {
                Grp_ConfProcessNode.Create(1,"方案/报价（含成本）","", ProcessStatus.InProgress,true,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(2,"项目前期比选/招投标相关文件","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(3,"参与投标","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(4,"拟定/签订合同","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(5,"场地预订/物料设计/对接活动所需的供应商/嘉宾邀约","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(6,"现场执行","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(7,"验收报告/决算表","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(8,"跟进项目收款","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
            };

            temps.Add(Grp_ConfProcessOverview.Create(groupId, 1, ProcessStatus.InProgress, currUserId, defaultPorc1));

            var defaultPorc2 = new List<Grp_ConfProcessNode>() {
                Grp_ConfProcessNode.Create(1,"方案/报价（含成本）","", ProcessStatus.InProgress,true,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(2,"拟定/签订合同","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(3,"场地预订/物料设计/对接活动所需的供应商/嘉宾邀约","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(4,"现场执行","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(5,"验收报告/决算表","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
                Grp_ConfProcessNode.Create(6,"跟进项目收款","", ProcessStatus.UnStarted,false,false, currUserId,defaultParticipators),
            };

            temps.Add(Grp_ConfProcessOverview.Create(groupId, 2, ProcessStatus.InProgress, currUserId, defaultPorc1));

            #endregion
            return temps;
        }

        /// <summary>
        /// 团组会务流程初始化
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ConfProcessInitAsync(int groupId, int currUserId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .Where(p => p.IsDel == 0 && p.GroupId == groupId)
                .ToListAsync();
            if (existingProcesses.Any())
            {
                return new Result { Code = 400, Msg = "团组会务流程已存在" };
            }

            // 定义默认的流程节点
            var temps = await DefaultConfProcessTemps(groupId, currUserId);
            if (temps == null || temps.Count < 1)
                return new Result { Code = 400, Msg = "团组会务默认流程不存在" };

            var process = temps.FirstOrDefault(x => x.ProcessOrder == 1);
            process.CreateUserId = currUserId;
            _sqlSugar.BeginTran();

            try
            {
                var processId = await _sqlSugar.Insertable(process).ExecuteReturnIdentityAsync();

                if (processId < 1)
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组会务流程进度总览添加失败！" };
                }
                process.Id = processId;
                // 记录流程日志
                await LogConfProcessOpAsync(null, process, "Create", currUserId);

                var nodes = process.Nodes.Select((nodeDto, index) => new Grp_ConfProcessNode
                {
                    ProcessId = processId,
                    NodeName = nodeDto.NodeName,
                    NodeOrder = nodeDto.NodeOrder,
                    Participator = JsonConvert.SerializeObject(nodeDto.Participators.Select(p => p.UserId).ToList()),
                    OverallStatus = nodeDto.OverallStatus,
                    NodeDescTips = nodeDto.NodeDescTips,
                    //Country = nodeDto.Country,
                    IsCurrent = nodeDto.IsCurrent,
                    IsFileUp = nodeDto.IsFileUp,
                    Remark = nodeDto.Remark,
                    CreateUserId = currUserId,
                }).ToList();

                var nodeIds = await _sqlSugar.Insertable(nodes).ExecuteCommandAsync();
                if (nodeIds < 1)
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组流程进度流程节点添加失败！" };
                }

                //设置节点ID
                nodes = await _sqlSugar.Queryable<Grp_ConfProcessNode>().Where(x => x.IsDel == 0 && x.ProcessId == processId).ToListAsync();

                //记录节点日志
                foreach (var node in nodes)
                {
                    await LogConfNodeOpAsync(null, node, "Create", currUserId);
                }

                _sqlSugar.CommitTran();
                return new Result { Code = 200, Msg = "添加成功！" };
            }
            catch (Exception ex)
            {
                _sqlSugar.RollbackTran();
                return new Result { Code = 500, Msg = $"操作失败！msg：{ex.Message}" };
            }
        }

        /// <summary>
        /// 获取团组会务流程及节点详情
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ConfProcessesDetailsAsync(int groupId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .Where(p => p.IsDel == 0 && p.GroupId == groupId)
                .ToListAsync();
            if (!existingProcesses.Any())
            {
                //新建团组流程
                var res = await ConfProcessInitAsync(groupId, 4);
                if (res.Code != 200)
                {
                    return res;
                }
            }

            var users = await _sqlSugar.Queryable<Sys_Users>().Select(x => new { x.Id, x.CnName }).ToListAsync();

            var processData = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .Where(p => p.GroupId == groupId && p.IsDel == 0)
                .Mapper(p => p.Nodes, p => p.Nodes.First().ProcessId)
                .ToListAsync();

            // 预先构建用户字典，提升查询性能
            var userDict = users.ToDictionary(u => u.Id, u => u.CnName);

            var processes = processData.Select(p =>
            {
                var orderedNodes = p.Nodes.OrderBy(n => n.NodeOrder).ToList();
                var totalNodes = orderedNodes.Count;

                return new
                {
                    p.Id,
                    p.GroupId,
                    p.ProcessType,
                    ProcessName = p.ProcessType.GetEnumDescription(),
                    Nodes = orderedNodes.Select((n, index) =>
                    {
                        //var isLastNode = index == totalNodes - 1;
                        //// 文件上传按钮启用规则
                        //bool isEnaFileUpBtn = false;
                        //if (isLastNode )
                        //{
                        //    isEnaFileUpBtn = true;
                        //}

                        //获取参与人姓名
                        var participators = new List<ParticipatorInfo>();
                        var participatorArray = JsonConvert.DeserializeObject<List<int>>(n.Participator);
                        if (participatorArray?.Count > 0)
                        {
                            foreach (var item in participatorArray)
                            {
                                if (userDict.TryGetValue(item, out var userName))
                                {
                                    participators.Add(new ParticipatorInfo
                                    {
                                        UserId = item,
                                        UserName = userName
                                    });
                                }
                            }
                        }

                        // 获取操作人姓名（使用字典提升性能）
                        string operatorName = "-";
                        if (n.Operator.HasValue && userDict.TryGetValue(n.Operator.Value, out var name))
                        {
                            operatorName = name;
                        }

                        return new
                        {
                            n.Id,
                            n.ProcessId,
                            n.NodeOrder,
                            n.NodeName,
                            n.NodeDescTips,
                            n.OverallStatus,
                            participators,
                            StatusText = n.OverallStatus.GetEnumDescription(),
                            Operator = operatorName,
                            OpeateTime = n.OperationTime?.ToString("yyyy-MM-dd HH:mm:ss") ?? "-",
                            ActualDone = n.ActualDone?.ToString("yyyy-MM-dd HH:mm:ss") ?? "",
                            n.IsFileUp,      // 票据上传节点 存储值
                        };
                    }).ToList()
                };
            }).ToList();

            return new Result { Code = 200, Data = processes, Msg = "查询成功！" };
        }

        /// <summary>
        /// 更新团组会务流程节点状态
        /// </summary>
        /// <param name="nodeId">节点ID</param>
        /// <param name="currUserId">当前用户ID</param>
        /// <param name="processStatus">流程状态，默认为已完成</param>
        /// <returns>操作结果</returns>
        public async Task<Result> UpdateConfNodeStatusAsync(int nodeId, int currUserId, ProcessStatus processStatus = ProcessStatus.Completed)
        {
            try
            {
                // 使用事务确保数据一致性
                var result = await _sqlSugar.Ado.UseTranAsync(async () =>
                {
                    // 1. 获取并验证节点
                    var node = await _sqlSugar.Queryable<Grp_ConfProcessNode>()
                        .FirstAsync(n => n.Id == nodeId && n.IsDel == 0) ?? throw new BusinessException("当前节点不存在或已被删除。");

                    // 2. 获取流程信息，检查ProcessType
                    var process = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                        .FirstAsync(p => p.Id == node.ProcessId && p.IsDel == 0) ?? throw new BusinessException("关联的流程不存在。");

                    // 3. 节点操作验证
                    ValidateConfNodeOperation(node, processStatus);

                    // 4. 存储更新前的值
                    var before = new Grp_ConfProcessNode()
                    {
                        Id = node.Id,
                        ProcessId = node.ProcessId,
                        NodeName = node.NodeName,
                        NodeDescTips = node.NodeDescTips,
                        NodeOrder = node.NodeOrder,
                        Participator = node.Participator,
                        OverallStatus = node.OverallStatus,
                        Operator = node.Operator,
                        OperationTime = node.OperationTime,
                        IsCurrent = node.IsCurrent,
                        ActualDone = node.ActualDone,
                        IsFileUp = node.IsFileUp,
                    };

                    // 5. 更新节点状态
                    node.OverallStatus = processStatus;
                    node.Operator = currUserId;
                    node.OperationTime = DateTime.Now;

                    var updateCount = await _sqlSugar.Updateable(node)
                        .UpdateColumns(n => new
                        {
                            n.OverallStatus,
                            n.Operator,
                            n.OperationTime
                        })
                        .ExecuteCommandAsync();

                    if (updateCount == 0)
                    {
                        throw new BusinessException("节点状态更新失败。");
                    }

                    // 6. 记录节点日志
                    await LogConfNodeOpAsync(before, node, "Update", currUserId);

                    // 7. 如果是完成当前节点，处理流程流转
                    if (processStatus == ProcessStatus.Completed)
                    {
                        await ConfProcessCurrentNodeCompletionAsync(node, currUserId);
                    }

                    return new Result { Code = StatusCodes.Status200OK, Msg = "操作成功。" };
                });

                return result.IsSuccess ? result.Data : new Result
                {
                    Code = StatusCodes.Status500InternalServerError,
                    Msg = result.ErrorMessage
                };
            }
            catch (BusinessException ex)
            {
                // 业务异常
                return new Result { Code = StatusCodes.Status400BadRequest, Msg = ex.Message };
            }
            catch (Exception ex)
            {
                // 系统异常
                return new Result { Code = StatusCodes.Status500InternalServerError, Msg = "系统错误，请稍后重试" };
            }
        }

        /// <summary>
        /// 验证会务流程节点操作权限
        /// </summary>
        /// <param name="node">流程节点</param>
        /// <param name="targetStatus">目标状态</param>
        private static void ValidateConfNodeOperation(Grp_ConfProcessNode node, ProcessStatus targetStatus)
        {
            // 验证节点是否已完成
            if (node.OverallStatus == ProcessStatus.Completed)
            {
                throw new BusinessException("当前节点已完成，不可重复操作。");
            }

            // 验证状态流转是否合法（可选）
            //if (targetStatus != ProcessStatus.Completed)
            //{
            //    throw new BusinessException("未开始或者进行中的节点只能重新完成，不可进行其他操作。");
            //}

            // 验证是否尝试将已完成节点改为其他状态
            if (node.OverallStatus == ProcessStatus.Completed && targetStatus != ProcessStatus.Completed)
            {
                throw new BusinessException("已完成节点不可修改状态。");
            }
        }

        /// <summary>
        /// 处理当前会务流程节点完成后的流程流转
        /// </summary>
        private async Task ConfProcessCurrentNodeCompletionAsync(Grp_ConfProcessNode currentNode, int currUserId)
        {
            // 1. 获取流程信息
            var process = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .FirstAsync(p => p.Id == currentNode.ProcessId && p.IsDel == 0) ?? throw new BusinessException("关联的流程不存在。");

            var processBefore = new Grp_ConfProcessOverview()
            {
                Id = process.Id,
                GroupId = process.GroupId,
                ProcessOrder = process.ProcessOrder,
                ProcessType = process.ProcessType,
                OverallStatus = process.OverallStatus,
                StartTime = process.StartTime,
                EndTime = process.EndTime,
                UpdatedUserId = process.UpdatedUserId,
                UpdatedTime = process.UpdatedTime
            };

            // 2. 取消当前节点的当前状态
            var before = new Grp_ConfProcessNode()
            {
                Id = currentNode.Id,
                ProcessId = currentNode.ProcessId,
                NodeName = currentNode.NodeName,
                NodeOrder = currentNode.NodeOrder,
                OverallStatus = currentNode.OverallStatus,
                Operator = currentNode.Operator,
                OperationTime = currentNode.OperationTime,
                IsCurrent = currentNode.IsCurrent,
            };
            currentNode.IsCurrent = false;
            await _sqlSugar.Updateable(currentNode)
                .UpdateColumns(n => new { n.IsCurrent })
                .ExecuteCommandAsync();
            // 2.1 记录节点日志 取消当前节点状态
            await LogConfNodeOpAsync(before, currentNode, "Update", currUserId);

            // 3. 查找并激活下一个节点
            var nextNode = await _sqlSugar.Queryable<Grp_ConfProcessNode>()
                .Where(n => n.ProcessId == currentNode.ProcessId
                         && n.NodeOrder == currentNode.NodeOrder + 1
                         && n.IsDel == 0)
                .FirstAsync();

            if (nextNode != null)
            {
                var nextNodeBefore = new Grp_ConfProcessNode()
                {
                    Id = nextNode.Id,
                    ProcessId = nextNode.ProcessId,
                    NodeName = nextNode.NodeName,
                    NodeOrder = nextNode.NodeOrder,
                    OverallStatus = nextNode.OverallStatus,
                    Operator = nextNode.Operator,
                    OperationTime = nextNode.OperationTime,
                    IsCurrent = nextNode.IsCurrent,
                };

                // 激活下一个节点
                nextNode.IsCurrent = true;
                nextNode.OverallStatus = ProcessStatus.InProgress;

                var updateCount = await _sqlSugar.Updateable(nextNode)
                    .UpdateColumns(n => new
                    {
                        n.IsCurrent,
                        n.OverallStatus,
                        n.Operator,
                        n.OperationTime
                    })
                    .ExecuteCommandAsync();

                if (updateCount == 0)
                {
                    throw new BusinessException("激活下一节点失败");
                }

                // 1.1 记录节点日志 激活下一节点当前节点状态
                await LogConfNodeOpAsync(nextNodeBefore, nextNode, "Start", currUserId);

                // 更新流程状态为进行中
                process.OverallStatus = ProcessStatus.InProgress;
            }
            else
            {
                // 下一节点不存在，整个流程完成
                process.OverallStatus = ProcessStatus.Completed;
                process.EndTime = DateTime.Now;
            }

            // 4. 更新流程信息
            process.UpdatedUserId = currUserId;
            process.UpdatedTime = DateTime.Now;

            var processUpdateCount = await _sqlSugar.Updateable(process)
                .UpdateColumns(p => new
                {
                    p.OverallStatus,
                    p.EndTime,
                    p.UpdatedUserId,
                    p.UpdatedTime
                })
                .ExecuteCommandAsync();

            if (processUpdateCount == 0)
            {
                throw new BusinessException("流程状态更新失败。");
            }

            //记录流程日志
            await LogConfProcessOpAsync(processBefore, process, "Update", currUserId);
        }

        /// <summary>
        /// 更新节点信息
        /// </summary>
        /// <param name="dto">签证节点更新数据传输对象</param>
        /// <returns>操作结果</returns>
        public async Task<Result> SetNodeInfoAsync(ConfProcessSetActualDoneDto dto)
        {
            //参与人验证
            if (dto.Participators?.Count < 1)
            {
                throw new BusinessException("参与人不能为空。");
            }

            int nodeId = dto.NodeId;
            var isDtNul = DateTime.TryParse(dto.ActualDone, out DateTime actualDone);
            int currUserId = dto.CurrUserId;
            bool isFileUp = dto.IsFileUp;

            // 1. 获取并验证节点和流程
            var node = await _sqlSugar.Queryable<Grp_ConfProcessNode>()
                .FirstAsync(n => n.Id == nodeId && n.IsDel == 0)
                ?? throw new BusinessException("当前节点不存在或已被删除。");

            var process = await _sqlSugar.Queryable<Grp_ConfProcessOverview>()
                .FirstAsync(p => p.Id == node.ProcessId && p.IsDel == 0)
                ?? throw new BusinessException("当前流程不存在或已被删除。");

            // 2.1 存储更新前流程及节点信息
            var nodeBefore = new Grp_ConfProcessNode()
            {
                Id = node.Id,
                ProcessId = node.ProcessId,
                NodeName = node.NodeName,
                NodeOrder = node.NodeOrder,
                OverallStatus = node.OverallStatus,
                Operator = node.Operator,
                OperationTime = node.OperationTime,
                IsCurrent = node.IsCurrent
            };

            if (isDtNul)
            {
                node.ActualDone = actualDone;
            }

            node.IsFileUp = isFileUp;
            node.Participator = JsonConvert.SerializeObject(node.Participators.Select(x => x.UserId).ToList());

            // 3. 保存节点更新
            await _sqlSugar.Updateable(node)
                .UpdateColumns(n => new
                {
                    ActualDone = isDtNul ? node.ActualDone : null,
                    n.Participator,
                    n.IsFileUp,
                })
                .ExecuteCommandAsync();
            //记录节点日志
            await LogConfNodeOpAsync(nodeBefore, node, "Update", currUserId);

            return new Result { Code = 200, Msg = "实际操作时间设置成功。" };
        }

        #endregion

        #region 操作日志

        #region 团组流程

        /// <summary>
        /// 记录流程操作日志
        /// </summary>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="opType">操作类型（Create - 创建、Update - 更新、Complete - 完成）</param>
        /// <param name="operId">操作人ID</param>
        /// <returns>异步任务</returns>
        public async Task LogProcessOpAsync(Grp_ProcessOverview before, Grp_ProcessOverview after, string opType, int operId)
        {
            var chgDetails = GetProcessChgDetails(before, after);

            var log = new Grp_ProcessLog
            {
                ProcessId = after?.Id ?? before?.Id,
                GroupId = after?.GroupId ?? before?.GroupId ?? 0,
                OpType = opType,
                OpDesc = GenerateProcessOpDesc(opType, before, after, chgDetails),
                BeforeData = before != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                AfterData = after != null ? JsonConvert.SerializeObject(after, GetJsonSettings()) : null,
                ChgFields = string.Join(",", chgDetails.Select(x => x.FieldName)),
                CreateUserId = operId
            };

            await _sqlSugar.Insertable(log).ExecuteCommandAsync();
        }

        /// <summary>
        /// 记录节点操作日志
        /// </summary>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="opType">操作类型（Create - 创建、Update - 更新、Start - 启动、Complete - 完成）</param>
        /// <param name="operId">操作人ID</param>
        /// <returns>异步任务</returns>
        public async Task LogNodeOpAsync(Grp_ProcessNode before, Grp_ProcessNode after, string opType, int operId)
        {
            var chgDetails = GetNodeChgDetails(before, after);

            var log = new Grp_ProcessLog
            {
                NodeId = after?.Id ?? before?.Id,
                ProcessId = after?.ProcessId ?? before?.ProcessId,
                GroupId = 0, // 通过流程ID关联获取
                OpType = opType,
                OpDesc = GenerateNodeOpDesc(opType, before, after, chgDetails),
                BeforeData = before != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                AfterData = after != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                ChgFields = string.Join(",", chgDetails.Select(x => x.FieldName)),
                CreateUserId = operId
            };

            await _sqlSugar.Insertable(log).ExecuteCommandAsync();
        }

        /// <summary>
        /// 获取流程变更详情
        /// </summary>
        /// <param name="before">变更前</param>
        /// <param name="after">变更后</param>
        /// <returns>变更详情</returns>
        private List<FieldChgDetail> GetProcessChgDetails(Grp_ProcessOverview before, Grp_ProcessOverview after)
        {
            var chgDetails = new List<FieldChgDetail>();

            if (before == null || after == null) return chgDetails;

            var props = typeof(Grp_ProcessOverview).GetProperties(BindingFlags.Public | BindingFlags.Instance)
                .Where(p => p.CanRead && p.CanWrite && !IsExclField(p.Name));

            foreach (var prop in props)
            {
                var beforeVal = prop.GetValue(before);
                var afterVal = prop.GetValue(after);

                if (!Equals(beforeVal, afterVal))
                {
                    chgDetails.Add(new FieldChgDetail
                    {
                        FieldName = prop.Name,
                        BeforeValue = FormatVal(beforeVal),
                        AfterValue = FormatVal(afterVal)
                    });
                }
            }

            return chgDetails;
        }

        /// <summary>
        /// 获取节点变更详情
        /// </summary>
        /// <param name="before">变更前</param>
        /// <param name="after">变更后</param>
        /// <returns>变更详情</returns>
        private List<FieldChgDetail> GetNodeChgDetails(Grp_ProcessNode before, Grp_ProcessNode after)
        {
            var chgDetails = new List<FieldChgDetail>();

            if (before == null || after == null) return chgDetails;

            var props = typeof(Grp_ProcessNode).GetProperties(BindingFlags.Public | BindingFlags.Instance)
                .Where(p => p.CanRead && p.CanWrite && !IsExclField(p.Name));

            foreach (var prop in props)
            {
                var beforeVal = prop.GetValue(before);
                var afterVal = prop.GetValue(after);

                if (!Equals(beforeVal, afterVal))
                {
                    chgDetails.Add(new FieldChgDetail
                    {
                        FieldName = prop.Name,
                        BeforeValue = FormatVal(beforeVal),
                        AfterValue = FormatVal(afterVal)
                    });
                }
            }

            return chgDetails;
        }

        /// <summary>
        /// 生成流程操作描述
        /// </summary>
        /// <param name="opType">操作类型</param>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="chgDetails">变更详情</param>
        /// <returns>操作描述</returns>
        private string GenerateProcessOpDesc(string opType, Grp_ProcessOverview before,
            Grp_ProcessOverview after, List<FieldChgDetail> chgDetails)
        {
            var processType = after?.ProcessType ?? before?.ProcessType;
            var processName = GetProcessTypeName(processType);

            if (!chgDetails.Any())
            {
                return opType switch
                {
                    "Create" => $"创建流程：{processName}",
                    "Update" => $"更新流程：{processName} - 无变更",
                    "Start" => $"启动流程：{processName}",
                    "Complete" => $"完成流程：{processName}",
                    "Delete" => $"删除流程：{processName}",
                    _ => $"{opType}：{processName}"
                };
            }

            var chgDesc = string.Join("; ", chgDetails.Select(x =>
                $"{GetFieldDisplayName(x.FieldName)} ({x.BeforeValue} -> {x.AfterValue})"));

            return $"{GetOpTypeDisplay(opType)}：{processName} - {chgDesc}";
        }

        /// <summary>
        /// 生成节点操作描述
        /// </summary>
        /// <param name="opType">操作类型</param>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="chgDetails">变更详情</param>
        /// <returns>操作描述</returns>
        private string GenerateNodeOpDesc(string opType, Grp_ProcessNode before,
            Grp_ProcessNode after, List<FieldChgDetail> chgDetails)
        {
            var nodeName = after?.NodeName ?? before?.NodeName;

            if (!chgDetails.Any())
            {
                return opType switch
                {
                    "Create" => $"创建节点：{nodeName}",
                    "Update" => $"更新节点：{nodeName} - 无变更",
                    "Start" => $"启动节点：{nodeName}",
                    "Complete" => $"完成节点：{nodeName}",
                    //"Delete" => $"删除节点：{nodeName}",
                    _ => $"{opType}：{nodeName}"
                };
            }

            var chgDesc = string.Join("; ", chgDetails.Select(x =>
                $"{GetFieldDisplayName(x.FieldName)} ({x.BeforeValue} -> {x.AfterValue})"));

            return $"{GetOpTypeDisplay(opType)}：{nodeName} - {chgDesc}";
        }

        /// <summary>
        /// 获取流程类型名称
        /// </summary>
        /// <param name="processType">流程类型</param>
        /// <returns>流程名称</returns>
        private static string GetProcessTypeName(GroupProcessType? processType)
        {
            return processType switch
            {
                GroupProcessType.Invitation => "商邀报批",
                GroupProcessType.Visa => "签证",
                GroupProcessType.AirTicket => "机票",
                GroupProcessType.Hotel => "酒店",
                GroupProcessType.LocalGuide => "地接",
                GroupProcessType.FeeSettle => "费用结算",
                _ => "未知流程"
            };
        }

        /// <summary>
        /// 获取流程日志
        /// </summary>
        /// <param name="processId">流程ID</param>
        /// <returns>日志列表</returns>
        public async Task<List<Grp_ProcessLog>> GetProcessLogsAsync(int processId)
        {
            return await _sqlSugar.Queryable<Grp_ProcessLog>()
                .Where(x => x.ProcessId == processId)
                .OrderByDescending(x => x.CreateTime)
                .ToListAsync();
        }

        /// <summary>
        /// 获取团组流程日志
        /// </summary>
        /// <param name="groupId">团组ID</param>
        /// <returns>日志列表</returns>
        public async Task<List<Grp_ProcessLog>> GetGroupLogsAsync(int groupId)
        {
            return await _sqlSugar.Queryable<Grp_ProcessLog>()
                .Where(x => x.GroupId == groupId)
                .OrderByDescending(x => x.CreateTime)
                .ToListAsync();
        }

        #endregion

        #region 会务流程

        /// <summary>
        /// 记录会务流程操作日志
        /// </summary>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="opType">操作类型（Create - 创建、Update - 更新、Complete - 完成）</param>
        /// <param name="operId">操作人ID</param>
        /// <returns>异步任务</returns>
        public async Task LogConfProcessOpAsync(Grp_ConfProcessOverview before, Grp_ConfProcessOverview after, string opType, int operId)
        {
            var chgDetails = GetConfProcessChgDetails(before, after);

            var log = new Grp_ConfProcessLog
            {
                ProcessId = after?.Id ?? before?.Id,
                GroupId = after?.GroupId ?? before?.GroupId ?? 0,
                OpType = opType,
                OpDesc = GenerateConfProcessOpDesc(opType, before, after, chgDetails),
                BeforeData = before != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                AfterData = after != null ? JsonConvert.SerializeObject(after, GetJsonSettings()) : null,
                ChgFields = string.Join(",", chgDetails.Select(x => x.FieldName)),
                CreateUserId = operId
            };

            await _sqlSugar.Insertable(log).ExecuteCommandAsync();
        }

        /// <summary>
        /// 记录会务节点操作日志
        /// </summary>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="opType">操作类型（Create - 创建、Update - 更新、Start - 启动、Complete - 完成）</param>
        /// <param name="operId">操作人ID</param>
        /// <returns>异步任务</returns>
        public async Task LogConfNodeOpAsync(Grp_ConfProcessNode before, Grp_ConfProcessNode after, string opType, int operId)
        {
            var chgDetails = GetConfNodeChgDetails(before, after);

            var log = new Grp_ConfProcessLog
            {
                NodeId = after?.Id ?? before?.Id,
                ProcessId = after?.ProcessId ?? before?.ProcessId,
                GroupId = 0, // 通过流程ID关联获取
                OpType = opType,
                OpDesc = GenerateConfNodeOpDesc(opType, before, after, chgDetails),
                BeforeData = before != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                AfterData = after != null ? JsonConvert.SerializeObject(before, GetJsonSettings()) : null,
                ChgFields = string.Join(",", chgDetails.Select(x => x.FieldName)),
                CreateUserId = operId
            };

            await _sqlSugar.Insertable(log).ExecuteCommandAsync();
        }

        /// <summary>
        /// 获取流程变更详情
        /// </summary>
        /// <param name="before">变更前</param>
        /// <param name="after">变更后</param>
        /// <returns>变更详情</returns>
        private static List<FieldChgDetail> GetConfProcessChgDetails(Grp_ConfProcessOverview before, Grp_ConfProcessOverview after)
        {
            var chgDetails = new List<FieldChgDetail>();

            if (before == null || after == null) return chgDetails;

            var props = typeof(Grp_ConfProcessOverview).GetProperties(BindingFlags.Public | BindingFlags.Instance)
                .Where(p => p.CanRead && p.CanWrite && !IsExclField(p.Name));

            foreach (var prop in props)
            {
                var beforeVal = prop.GetValue(before);
                var afterVal = prop.GetValue(after);

                if (!Equals(beforeVal, afterVal))
                {
                    chgDetails.Add(new FieldChgDetail
                    {
                        FieldName = prop.Name,
                        BeforeValue = FormatVal(beforeVal),
                        AfterValue = FormatVal(afterVal)
                    });
                }
            }

            return chgDetails;
        }

        /// <summary>
        /// 获取节点变更详情
        /// </summary>
        /// <param name="before">变更前</param>
        /// <param name="after">变更后</param>
        /// <returns>变更详情</returns>
        private static List<FieldChgDetail> GetConfNodeChgDetails(Grp_ConfProcessNode before, Grp_ConfProcessNode after)
        {
            var chgDetails = new List<FieldChgDetail>();

            if (before == null || after == null) return chgDetails;

            var props = typeof(Grp_ConfProcessNode).GetProperties(BindingFlags.Public | BindingFlags.Instance)
                .Where(p => p.CanRead && p.CanWrite && !IsExclField(p.Name));

            foreach (var prop in props)
            {
                var beforeVal = prop.GetValue(before);
                var afterVal = prop.GetValue(after);

                if (!Equals(beforeVal, afterVal))
                {
                    chgDetails.Add(new FieldChgDetail
                    {
                        FieldName = prop.Name,
                        BeforeValue = FormatVal(beforeVal),
                        AfterValue = FormatVal(afterVal)
                    });
                }
            }

            return chgDetails;
        }

        /// <summary>
        /// 生成流程操作描述
        /// </summary>
        /// <param name="opType">操作类型</param>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="chgDetails">变更详情</param>
        /// <returns>操作描述</returns>
        private static string GenerateConfProcessOpDesc(string opType, Grp_ConfProcessOverview before,
            Grp_ConfProcessOverview after, List<FieldChgDetail> chgDetails)
        {
            var processType = after?.ProcessType ?? before?.ProcessType;
            var processName = GetConfProcessTypeName(processType);

            if (!chgDetails.Any())
            {
                return opType switch
                {
                    "Create" => $"创建流程：{processName}",
                    "Update" => $"更新流程：{processName} - 无变更",
                    "Start" => $"启动流程：{processName}",
                    "Complete" => $"完成流程：{processName}",
                    "Delete" => $"删除流程：{processName}",
                    _ => $"{opType}：{processName}"
                };
            }

            var chgDesc = string.Join("; ", chgDetails.Select(x =>
                $"{GetFieldDisplayName(x.FieldName)} ({x.BeforeValue} -> {x.AfterValue})"));

            return $"{GetOpTypeDisplay(opType)}：{processName} - {chgDesc}";
        }

        /// <summary>
        /// 生成节点操作描述
        /// </summary>
        /// <param name="opType">操作类型</param>
        /// <param name="before">操作前</param>
        /// <param name="after">操作后</param>
        /// <param name="chgDetails">变更详情</param>
        /// <returns>操作描述</returns>
        private static string GenerateConfNodeOpDesc(string opType, Grp_ConfProcessNode before,
            Grp_ConfProcessNode after, List<FieldChgDetail> chgDetails)
        {
            var nodeName = after?.NodeName ?? before?.NodeName;

            if (!chgDetails.Any())
            {
                return opType switch
                {
                    "Create" => $"创建节点：{nodeName}",
                    "Update" => $"更新节点：{nodeName} - 无变更",
                    "Start" => $"启动节点：{nodeName}",
                    "Complete" => $"完成节点：{nodeName}",
                    //"Delete" => $"删除节点：{nodeName}",
                    _ => $"{opType}：{nodeName}"
                };
            }

            var chgDesc = string.Join("; ", chgDetails.Select(x =>
                $"{GetFieldDisplayName(x.FieldName)} ({x.BeforeValue} -> {x.AfterValue})"));

            return $"{GetOpTypeDisplay(opType)}：{nodeName} - {chgDesc}";
        }

        /// <summary>
        /// 获取流程类型名称
        /// </summary>
        /// <param name="processType">流程类型</param>
        /// <returns>流程名称</returns>
        private static string GetConfProcessTypeName(ConfProcessType? processType)
        {
            return processType switch
            {
                ConfProcessType.Conference => "会务",
                _ => "未知流程"
            };
        }

        /// <summary>
        /// 获取会务流程日志
        /// </summary>
        /// <param name="processId">流程ID</param>
        /// <returns>日志列表</returns>
        public async Task<List<Grp_ConfProcessLog>> GetConfProcessLogsAsync(int processId)
        {
            return await _sqlSugar.Queryable<Grp_ConfProcessLog>()
                .Where(x => x.ProcessId == processId)
                .OrderByDescending(x => x.CreateTime)
                .ToListAsync();
        }

        /// <summary>
        /// 获取团组会务流程日志
        /// </summary>
        /// <param name="groupId">团组ID</param>
        /// <returns>日志列表</returns>
        public async Task<List<Grp_ConfProcessLog>> GetGroupConfLogsAsync(int groupId)
        {
            return await _sqlSugar.Queryable<Grp_ConfProcessLog>()
                .Where(x => x.GroupId == groupId)
                .OrderByDescending(x => x.CreateTime)
                .ToListAsync();
        }

        #endregion

        #region 日志私有方法

        /// <summary>
        /// 获取JSON序列化设置
        /// </summary>
        /// <returns>JSON设置</returns>
        private static JsonSerializerSettings GetJsonSettings()
        {
            return new JsonSerializerSettings
            {
                ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
                NullValueHandling = NullValueHandling.Ignore,
                DateFormatString = "yyyy-MM-dd HH:mm:ss",
                Formatting = Formatting.None
            };
        }

        /// <summary>
        /// 获取操作类型显示
        /// </summary>
        /// <param name="opType">操作类型</param>
        /// <returns>显示名称</returns>
        private static string GetOpTypeDisplay(string opType)
        {
            return opType switch
            {
                "Create" => "创建",
                "Update" => "更新",
                "Start" => "启动",
                "Complete" => "完成",
                "Delete" => "删除",
                "StatusChg" => "状态变更",
                _ => opType
            };
        }

        /// <summary>
        /// 获取字段显示名称
        /// </summary>
        /// <param name="fieldName">字段名</param>
        /// <returns>显示名称</returns>
        private static string GetFieldDisplayName(string fieldName)
        {
            return fieldName switch
            {
                "OverallStatus" => "状态",
                "ProcessOrder" => "流程顺序",
                "StartTime" => "开始时间",
                "EndTime" => "结束时间",
                "UpdatedUserId" => "更新人",
                "UpdatedTime" => "更新时间",
                "NodeOrder" => "节点顺序",
                "NodeName" => "节点名称",
                "NodeDescTips" => "节点描述提示",
                "IsCurrent" => "当前节点",
                "Participator" => "参与人",
                "Operator" => "操作人",
                "OperationTime" => "操作时间",
                "ActualDone" => "实际完成时间",
                "IsFileUp" => "是否上传文件(签证、机票、酒店、地接 流程结尾节点使用)",
                "IsAssist" => "是否协助(财务流程首节点使用)",
                "IsPart" => "是否参与(商邀 第五步使用)",
                _ => fieldName
            };
        }

        /// <summary>
        /// 格式化值显示
        /// </summary>
        /// <param name="value">值</param>
        /// <returns>格式化值</returns>
        private static string FormatVal(object value)
        {
            if (value == null) return "空";

            if (value is ProcessStatus status)
            {
                return status switch
                {
                    ProcessStatus.UnStarted => "未开始",
                    ProcessStatus.InProgress => "进行中",
                    ProcessStatus.Completed => "已完成",
                    _ => status.ToString()
                };
            }

            if (value is bool boolVal) return boolVal ? "是" : "否";
            if (value is DateTime dateVal) return dateVal.ToString("yyyy-MM-dd HH:mm");

            var strVal = value.ToString();
            return string.IsNullOrEmpty(strVal) ? "空" : strVal;
        }

        /// <summary>
        /// 检查是否排除字段
        /// </summary>
        /// <param name="fieldName">字段名</param>
        /// <returns>是否排除</returns>
        private static bool IsExclField(string fieldName)
        {
            var exclFields = new List<string>
            {
                "Id", "CreateTime", "CreateUserId", "Nodes", "Process" // 导航属性
            };
            return exclFields.Contains(fieldName);
        }

        #endregion

        #endregion
    }
}