using DS.Module.Core;
using DS.Module.Core.Enums;
using DS.Module.Core.Extensions;
using DS.WMS.Core.Application.Dtos;
using DS.WMS.Core.Application.Entity;
using DS.WMS.Core.Application.Method;
using DS.WMS.Core.Fee.Entity;
using DS.WMS.Core.Invoice.Dto;
using DS.WMS.Core.Invoice.Dtos;
using DS.WMS.Core.Invoice.Interface;
using DS.WMS.Core.Sys.Entity;
using DS.WMS.Core.Sys.Interface;
using Microsoft.Extensions.DependencyInjection;
using SqlSugar;

namespace DS.WMS.Core.Invoice.Method
{
    /// <summary>
    /// 发票服务基类
    /// </summary>
    /// <typeparam name="TEntity"></typeparam>
    public class InvoiceService<TEntity> : ApplicationServiceBase, IInvoiceService<TEntity>
        where TEntity : Entity.Invoice, new()
    {
        readonly Lazy<ICommonService> CommonService;

        /// <summary>
        /// 初始化
        /// </summary>
        /// <param name="provider"></param>
        public InvoiceService(IServiceProvider provider) : base(provider)
        {
            CommonService = new Lazy<ICommonService>(provider.GetRequiredService<ICommonService>());
        }

        /// <summary>
        /// 获取分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        public async Task<DataResult<List<InvoiceDto>>> GetListAsync(PageRequest<string> request)
        {
            var query = TenantDb.Queryable<Entity.Invoice>()
                .Select(i => new InvoiceDto
                {
                    Id = i.Id,
                    InvoiceNO = i.InvoiceNO,
                    BillNO = i.BillNO,
                    InvoiceDate = i.InvoiceDate,
                    CustomerId = i.CustomerId,
                    CustomerName = i.CustomerName,
                    Type = i.Mode,
                    Category = i.Category,
                    InvoiceHeader = i.InvoiceHeader,
                    TaxID = i.TaxID,
                    CustomerAddress = i.CustomerAddress,
                    CustomerBankName = i.CustomerBankName,
                    CustomerPhone = i.CustomerPhone,
                    CustomerAccount = i.CustomerAccount,
                    AutualCustomerName = i.AutualCustomerName,
                    Currency = i.Currency,
                    ReceiptCurrency = i.ReceiptCurrency,
                    ApplyAmount = i.ApplyAmount,
                    InvoiceAmount = i.InvoiceAmount,
                    OperatorId = i.OperatorId,
                    IsLocked = i.IsLocked,
                    LockUserId = i.LockUserId,
                    LockTime = i.LockTime,
                    TaxRate = i.TaxRate,
                    OrgId = i.OrgId,
                    SaleDeptId = i.SaleDeptId,
                    IsCancelled = i.IsCancelled,
                    CancelUserId = i.CancelUserId,
                    CancelTime = i.CancelTime,
                    CreateTime = i.CreateTime,
                    CreateBy = i.CreateBy,
                    InvoiceApplicationList = SqlFunc.Subqueryable<ApplicationDetail>().InnerJoin<InvoiceApplication>((d, a) =>
                        d.ApplicationId == i.Id && d.Category == DetailCategory.InvoiceIssuance && d.RefId == a.Id)
                        .GroupBy((d, a) => a.ApplicationNO).ToList((d, a) => a.ApplicationNO)
                });

            if (!request.OtherQueryCondition.IsNullOrEmpty())
            {
                query = query.Where(i => i.InvoiceApplicationList.Contains(request.OtherQueryCondition));
            }

            var whereList = request.GetConditionalModels(Db);
            var result = await query.Where(whereList).ToQueryPageAsync(request.PageCondition);

            if (result.Data.Count > 0)
            {
                var userIds = result.Data.Select(x => x.CreateBy)
                    .Union(result.Data.Where(x => x.LockUserId.HasValue).Select(x => x.LockUserId.Value))
                    .Union(result.Data.Where(x => x.OperatorId.HasValue).Select(x => x.OperatorId.Value))
                    .Distinct();
                var users = await Db.Queryable<SysUser>().Where(x => userIds.Contains(x.Id)).Select(x => new { x.Id, x.UserName }).ToListAsync();

                var orgIds = result.Data.Where(x => x.SaleDeptId.HasValue).Select(x => x.SaleDeptId.Value)
                    .Union(result.Data.Where(x => x.OrgId.HasValue).Select(x => x.OrgId.Value))
                    .Distinct();
                var orgs = await Db.Queryable<SysOrg>().Where(x => orgIds.Contains(x.Id)).Select(x => new { x.Id, x.OrgName }).ToListAsync();

                foreach (var item in result.Data)
                {
                    item.CreateByName = users.Find(x => x.Id == item.CreateBy)?.UserName;
                    item.LockUserName = users.Find(x => x.Id == item.LockUserId)?.UserName;
                    item.OperatorName = users.Find(x => x.Id == item.OperatorId)?.UserName;

                    item.SaleDeptName = orgs.Find(x => x.Id == item.SaleDeptId)?.OrgName;
                    item.OrgName = orgs.Find(x => x.Id == item.OrgId)?.OrgName;
                }
            }

            return result;
        }

        /// <summary>
        /// 获取发票详情
        /// </summary>
        /// <param name="id">发票ID</param>
        /// <returns></returns>
        public async Task<DataResult<InvoiceDto>> GetAsync(long id)
        {
            var invoice = await TenantDb.Queryable<Entity.Invoice>().Select<InvoiceDto>().FirstAsync(x => x.Id == id);
            if (invoice != null)
            {
                invoice.Details = await CreateApplicationDetailQuery((d, f, s) => d.ApplicationId == id && d.Category == DetailCategory.InvoiceIssuance)
                    .Select(x => new ApplicationDetailDto
                    {
                        Id = x.Id,
                        ApplicationId = x.ApplicationId,
                        RecordId = x.RecordId,
                        FeeName = x.FeeName,
                        FeeType = x.FeeType,
                        ApplyAmount = x.ApplyAmount,
                        ExchangeRate = x.ExchangeRate,
                        Currency = x.Currency,
                        OriginalAmount = x.OriginalAmount,
                        OriginalCurrency = x.OriginalCurrency,
                        OriginalRate = x.OriginalRate,
                        CustomerNo = x.CustomerNo,
                        MBLNO = x.MBLNO,
                        ClientName = x.ClientName,
                        ETD = x.ETD,
                        SaleName = x.SaleName,
                        SourceName = x.SourceName,
                        LoadPort = x.LoadPort,
                        Vessel = x.Vessel,
                        Voyage = x.Voyage,
                    }).ToListAsync();

                invoice.Summary = invoice.Details.GroupBy(x => new { x.FeeType, x.Currency }).Select(x => new SummaryItem
                {
                    FeeType = x.Key.FeeType,
                    Currency = x.Key.Currency,
                    Amount = x.Sum(y => y.ApplyAmount)
                }).ToList();

                invoice.InvoiceDetails = await TenantDb.Queryable<InvoiceDetail>().Where(
                    x => x.ApplicationId == id && x.Category == DetailCategory.InvoiceIssuance).ToListAsync();
            }

            return DataResult<InvoiceDto>.Success(invoice);
        }


#pragma warning disable CS4014

        /// <summary>
        /// 提交
        /// </summary>
        /// <param name="request">请求参数</param>
        /// <returns></returns>
        public async Task<DataResult<TEntity>> SaveAsync(InvoiceRequest<TEntity> request)
        {
            var invoice = request.Invoice;
            if (invoice.InvoiceDate == default)
                invoice.InvoiceDate = DateTime.Now;

            if (invoice.Currency.IsNullOrEmpty())
                invoice.Currency = FeeCurrency.RMB_CODE;

            TEntity? dbValue = default;
            if (request.Invoice.Id > 0)
            {
                dbValue = await TenantDb.Queryable<TEntity>().Select(x => new TEntity
                {
                    Id = x.Id,
                    IsLocked = x.IsLocked,
                    Mode = x.Mode,
                }).FirstAsync(x => x.Id == request.Invoice.Id);
            }
            var result = EnsureSettlement(request.Invoice, dbValue);
            if (!result.Succeeded)
                return DataResult<TEntity>.Failed(result.Message, result.MultiCode);

            //按发票申请
            if (request.Applications != null && request.Applications.Count > 0)
            {
                var ids = request.Applications.Select(x => x.ApplicationId);
                var details = await TenantDb.Queryable<ApplicationDetail>()
                    .InnerJoin<InvoiceApplication>((x, y) => x.ApplicationId == y.Id)
                    .Where((x, y) => ids.Contains(x.ApplicationId) && x.Category == DetailCategory.InvoiceApplication)
                    .Select((x, y) => new
                    {
                        x.Id,
                        x.ApplicationId,
                        x.RecordId,
                        x.CustomerName,
                        x.FeeId,
                        x.FeeType,
                        x.FeeName,
                        x.ApplyAmount,
                        x.OriginalAmount,
                        x.Currency,
                        x.OriginalCurrency,
                        x.ProcessedAmount,
                        x.OriginalProcessedAmount,
                        y.CustomerId
                    }).ToListAsync();

                invoice.Details ??= new List<ApplicationDetail>(details.Count);

                foreach (var item in details)
                {
                    if (request.Invoice.CustomerId == 0)
                    {
                        request.Invoice.CustomerId = item.CustomerId;
                        request.Invoice.CustomerName = item.CustomerName;
                    }
                    else if (request.Invoice.CustomerId != item.CustomerId) //校验开票单位是否一致
                    {
                        return DataResult<TEntity>.FailedWithDesc(nameof(MultiLanguageConst.InvoiceCustomerOnlyOne));
                    }
                    //需转换为费用明细
                    var detail = new ApplicationDetail
                    {
                        ApplicationId = request.Invoice.Id,
                        RefId = item.ApplicationId,
                        DetailId = item.Id,
                        RecordId = item.RecordId,
                        Category = DetailCategory.InvoiceIssuance,
                        CustomerName = item.CustomerName,
                        FeeId = item.FeeId,
                        FeeName = item.FeeName,
                        FeeType = item.FeeType,
                        Currency = FeeCurrency.RMB_CODE,
                        OriginalCurrency = item.Currency,
                        ApplyAmount = item.ApplyAmount - item.ProcessedAmount,
                        OriginalAmount = item.OriginalAmount - item.OriginalProcessedAmount
                    };

                    var app = request.Applications.Find(x => x.ApplicationId == item.ApplicationId);
                    if (app != null && app.Currency != invoice.Currency)
                        detail.ExchangeRate = app.ExchangeRate;
                    else
                        detail.ExchangeRate = 1m;

                    if (detail.ExchangeRate.HasValue)
                        detail.ApplyAmount = detail.ApplyAmount * detail.ExchangeRate.Value;

                    invoice.Details.Add(detail);
                }
            }
            //自由申请
            if (request.Details?.Count > 0)
            {
                if (invoice.Id == 0 && invoice.CustomerId == 0)
                {
                    var first = request.Details[0];
                    invoice.CustomerId = first.CustomerId.GetValueOrDefault();
                    invoice.CustomerName = first.CustomerName;
                }

                //将请求明细转换为数据库的费用明细
                invoice.Details = request.Details.Select(x => new ApplicationDetail
                {
                    Id = x.Id,
                    ApplicationId = x.ApplicationId == 0 ? x.ApplicationId : invoice.Id,
                    RefId = x.RefId,
                    DetailId = x.Id == 0 ? null : x.Id,
                    RecordId = x.RecordId,
                    Category = DetailCategory.InvoiceIssuance,
                    CustomerName = x.CustomerName ?? invoice.CustomerName,
                    FeeId = x.FeeId,
                    FeeName = x.FeeName,
                    FeeType = x.FeeType,
                    Currency = x.Currency,
                    ApplyAmount = x.ApplyAmount,
                    ExchangeRate = x.ExchangeRate,
                    OriginalAmount = x.OriginalAmount,
                    OriginalCurrency = x.OriginalCurrency ?? (invoice.Currency.IsNullOrEmpty() ? x.Currency : invoice.Currency),
                }).ToList();
            }

            if (invoice.Details?.Count > 0)
            {
                //筛选出新增的费用明细
                invoice.Details = invoice.Details.FindAll(x => x.Id == 0);

                //金额禁止为0
                if (invoice.Details.Any(x => x.ApplyAmount == 0 || x.OriginalAmount == 0))
                    return DataResult<TEntity>.FailedWithDesc(nameof(MultiLanguageConst.AmountCannotBeZero));

                if (invoice.Details.Any(x => x.OriginalCurrency.IsNullOrEmpty()))
                    return DataResult<TEntity>.FailedWithDesc(nameof(MultiLanguageConst.OriginalCurrencyCanNotNull));

                if (invoice.Details.Any(x => x.Currency != invoice.Currency && x.ExchangeRate == null))
                    return DataResult<TEntity>.FailedWithDesc(nameof(MultiLanguageConst.NeedExchangeRate));

                result = await PreSaveAsync(invoice);
                if (!result.Succeeded)
                    return DataResult<TEntity>.Failed(result.Message, result.MultiCode);
            }

            await TenantDb.Ado.BeginTranAsync();
            try
            {
                BuildOption buildOption;
                if (invoice.Id == 0)//新增
                {
                    buildOption = BuildOption.Create;
                    //创建时需要生成申请单编号
                    var sequence = CommonService.Value.GetSequenceNext<TEntity>();
                    if (!sequence.Succeeded)
                    {
                        return DataResult<TEntity>.Failed(sequence.Message, MultiLanguageConst.SequenceSetNotExist);
                    }
                    invoice.BillNO = sequence.Data;
                    //关联导航属性插入
                    await TenantDb.InsertNav(invoice).Include(x => x.Details).ExecuteCommandAsync();
                }
                else//编辑
                {
                    buildOption = BuildOption.Update;
                    await TenantDb.Updateable(invoice).UpdateColumns(x => new
                    {
                        x.InvoiceNO,
                        x.InvoiceDate,
                        x.Account,
                        x.BankName,
                        //x.Currency,
                        x.ReceiptCurrency,
                        x.CustomerId,
                        x.CustomerName,
                        x.AutualCustomerName,
                        x.InvoiceHeader,
                        x.CustomerAddress,
                        x.CustomerPhone,
                        x.CustomerBankName,
                        x.CustomerAccount,
                        x.OperatorId,
                        x.TaxID,
                        x.TaxRate,
                        x.OrgId,
                        x.SaleDeptId
                    }).ExecuteCommandAsync();

                    if (invoice.Details?.Count > 0)
                        await TenantDb.Insertable(invoice.Details).ExecuteCommandAsync();

                    if (invoice.InvoiceDetails?.Count > 0)
                        //发票明细只有更新
                        await TenantDb.Updateable(invoice.InvoiceDetails).IgnoreColumns(x => new { x.Category }).ExecuteCommandAsync();
                }

                if (invoice.Details?.Count > 0)
                {
                    //更新费用记录的已开票金额
                    var fees = invoice.Details.Select(x => new FeeRecord
                    {
                        Id = x.RecordId,
                        InvoiceAmount = x.OriginalAmount,
                        OrderInvSettlementAmount = x.OriginalAmount,
                    }).ToList();

                    var updateable = TenantDb.Updateable(fees).PublicSetColumns(x => x.InvoiceAmount, "+");
                    if (invoice.Mode == InvoiceMode.Applcation)
                        updateable = updateable.PublicSetColumns(x => x.OrderInvSettlementAmount, "+")
                            .UpdateColumns(x => new { x.OrderInvSettlementAmount });

                    await updateable.UpdateColumns(x => new { x.InvoiceAmount }).ExecuteCommandAsync();

                    //生成发票明细
                    await BuildInvoiceDetailAsync(invoice, buildOption);

                    //重新计算发票总金额
                    await RefreshInvoiceAsync([invoice]);
                }

                await OnSaveAsync(invoice);
                await TenantDb.Ado.CommitTranAsync();
                PostSaveAsync(invoice);

                return DataResult<TEntity>.Success(invoice);
            }
            catch (Exception ex)
            {
                await TenantDb.Ado.RollbackTranAsync();
                await ex.LogAsync(Db);
                return DataResult<TEntity>.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
            }
        }

        /// <summary>
        /// 生成发票明细
        /// </summary>
        /// <param name="invoice">发票</param>
        /// <param name="option">生成类型</param>
        /// <returns></returns>
        protected async Task BuildInvoiceDetailAsync(TEntity invoice, BuildOption option)
        {
            if (invoice.Details == null || invoice.Details.Count == 0)
                return;

            var ids = invoice.Details.Select(x => x.Id);
            if (option == BuildOption.Create)
            {
                var feesCodes = await TenantDb.Queryable<ApplicationDetail>().InnerJoin<FeeCode>((d, fc) => d.FeeId == fc.Id && ids.Contains(d.Id))
                    .Select((d, fc) => new
                    {
                        DetailId = d.Id,
                        FeeId = fc.Id,
                        fc.GoodName
                    }).ToListAsync();
                var feeCodeGroups = feesCodes.GroupBy(x => x.GoodName).ToList();

                invoice.InvoiceDetails = new List<InvoiceDetail>(feeCodeGroups.Count);
                List<ApplicationDetailRelation> relations = [];
                foreach (var g in feeCodeGroups)
                {
                    var invDetail = new InvoiceDetail
                    {
                        Id = SnowFlakeSingle.Instance.NextId(),
                        ApplicationId = invoice.Id,
                        Name = g.Key,
                        TaxRate = invoice.TaxRate,
                        Quantity = 1,
                        TaxUnitPrice = invoice.Details.FindAll(x => g.Select(x => x.DetailId).Contains(x.Id)).Sum(x => x.ApplyAmount),
                        Category = DetailCategory.InvoiceIssuance
                    };
                    invDetail.TaxAmount = invDetail.TaxUnitPrice * invoice.TaxRate;
                    invDetail.UnitPrice = invDetail.TaxUnitPrice - invDetail.TaxAmount;
                    invDetail.Amount = invDetail.TaxUnitPrice * invDetail.Quantity;
                    invoice.InvoiceDetails.Add(invDetail);

                    foreach (var item in g)
                    {
                        relations.Add(new ApplicationDetailRelation
                        {
                            DetailId = item.DetailId,
                            InvoiceDetailId = invDetail.Id,
                            OriginalName = g.Key,
                            InvoiceId = invoice.Id
                        });
                    }
                }

                await TenantDb.Insertable(invoice.InvoiceDetails).ExecuteCommandAsync();
                await TenantDb.Insertable(relations).ExecuteCommandAsync();
            }
            //更新时只处理增加的明细
            else if (option == BuildOption.Update)
            {
                //获取现有发票明细对应关系
                var relations = await TenantDb.Queryable<ApplicationDetailRelation>().Where(x => x.InvoiceId == invoice.Id)
                    .Select(x => new
                    {
                        x.DetailId,
                        x.InvoiceDetailId,
                        x.OriginalName,
                    }).ToListAsync();
                var feeIds = invoice.Details.Select(x => x.FeeId);
                var feesCodes = await TenantDb.Queryable<FeeCode>().Where(x => feeIds.Contains(x.Id))
                    .Select(x => new
                    {
                        FeeId = x.Id,
                        x.GoodName
                    }).ToListAsync();

                invoice.InvoiceDetails = []; //新增的发票明细
                List<InvoiceDetail> invoiceDetailList = []; //更新的发票明细
                List<ApplicationDetailRelation> relationList = []; //新增的明细关系

                foreach (var detail in invoice.Details)
                {
                    var goodsName = feesCodes.Find(x => x.FeeId == detail.FeeId)?.GoodName; //转换为发票明细名称
                    var relation = relations.Find(x => string.Equals(x.OriginalName, goodsName, StringComparison.Ordinal));     
                    if (relation == null) //需要新增发票明细
                    {
                        var invDetail = new InvoiceDetail
                        {
                            Id = SnowFlakeSingle.Instance.NextId(),
                            ApplicationId = invoice.Id,
                            Name = goodsName,
                            Quantity = 1,
                            TaxRate = invoice.TaxRate,
                            TaxUnitPrice = detail.ApplyAmount,
                            Category = DetailCategory.InvoiceIssuance
                        };
                        invDetail.TaxAmount = invDetail.TaxUnitPrice * invoice.TaxRate;
                        invDetail.UnitPrice = invDetail.TaxUnitPrice - invDetail.TaxAmount;
                        invDetail.Amount = invDetail.TaxUnitPrice * invDetail.Quantity;
                        invoice.InvoiceDetails.Add(invDetail);

                        relationList.Add(new ApplicationDetailRelation
                        {
                            DetailId = detail.Id,
                            InvoiceDetailId = invDetail.Id,
                            InvoiceId = invoice.Id,
                            OriginalName = goodsName
                        });
                    }
                    else //发票明细已存在，追加金额
                    {
                        //添加到更新列表
                        invoiceDetailList.Add(new InvoiceDetail
                        {
                            Id = relation.InvoiceDetailId,
                            TaxUnitPrice = detail.ApplyAmount
                        });
                    }
                }

                if (invoice.InvoiceDetails.Count > 0)
                    await TenantDb.Insertable(invoice.InvoiceDetails).ExecuteCommandAsync();

                //执行发票明细金额更新
                if (invoiceDetailList.Count > 0)
                {
                    var ids2 = invoiceDetailList.Select(x => x.Id);
                    var updateList = await TenantDb.Queryable<InvoiceDetail>().Where(x => ids2.Contains(x.Id)).Select(x => new InvoiceDetail
                    {
                        Id = x.Id,
                        TaxUnitPrice = x.TaxUnitPrice,
                        TaxRate = x.TaxRate,
                        TaxAmount = x.TaxAmount,
                        UnitPrice = x.UnitPrice
                    }).ToListAsync();
                    foreach (var item in updateList)
                    {
                        var invDetail = invoiceDetailList.Find(x => x.Id == item.Id);
                        item.TaxUnitPrice += (invDetail?.TaxUnitPrice).GetValueOrDefault();
                        item.TaxAmount = item.TaxUnitPrice * invoice.TaxRate;
                        item.UnitPrice = item.TaxUnitPrice - item.TaxAmount;
                    }

                    await TenantDb.Updateable(updateList).UpdateColumns(x => new
                    {
                        x.TaxUnitPrice,
                        x.TaxAmount,
                        x.UnitPrice
                    }).ExecuteCommandAsync();
                }

                if (relationList.Count > 0)
                    await TenantDb.Insertable(relationList).ExecuteCommandAsync();
            }
            else if (option == BuildOption.Delete)
            {
            }

        }

        /// <summary>
        /// 重新计算发票的各项金额数据
        /// </summary>
        /// <param name="invoices">发票</param>
        /// <returns></returns>
        protected async Task<int> RefreshInvoiceAsync(List<TEntity> invoices)
        {
            var ids = invoices.Select(x => x.Id);
            var details = await TenantDb.Queryable<ApplicationDetail>().Where(x => ids.Contains(x.ApplicationId))
                .Select(x => new { x.ApplicationId, x.Currency, x.ApplyAmount, x.OriginalAmount }).ToListAsync();
            var invDetails = await TenantDb.Queryable<InvoiceDetail>().Where(x => ids.Contains(x.ApplicationId))
                .Select(x => new { x.ApplicationId, x.Amount }).ToListAsync();

            foreach (var invoice in invoices)
            {
                var currDetails = details.FindAll(x => x.ApplicationId == invoice.Id);

                invoice.ApplyAmount = currDetails.Sum(x => x.ApplyAmount);
                invoice.AmountUppercase = new Money(invoice.ApplyAmount).ToString();
                invoice.OriginalAmount = currDetails.Sum(x => x.OriginalAmount);
                invoice.OtherInvoiceAmount = currDetails.FindAll(x => x.Currency != FeeCurrency.RMB_CODE).Sum(x => x.OriginalAmount);

                invoice.InvoiceAmount = invDetails.FindAll(x => x.ApplicationId == invoice.Id).Sum(x => x.Amount);
            }

            return await TenantDb.Updateable(invoices).UpdateColumns(x => new
            {
                x.ApplyAmount,
                x.AmountUppercase,
                x.OriginalAmount,
                x.OtherInvoiceAmount,
                x.InvoiceAmount
            }).ExecuteCommandAsync();
        }

        /// <summary>
        /// 用于发票的状态检查
        /// </summary>
        /// <param name="invoice">提交的发票</param>
        /// <param name="dbValue">数据库值，新增时为null</param>
        /// <returns></returns>
        protected virtual DataResult EnsureSettlement(TEntity invoice, TEntity? dbValue)
        {
            if (dbValue != null && dbValue.IsLocked)
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.InvoiceIsLocked));

            return DataResult.Success;
        }

        /// <summary>
        /// 在保存前调用
        /// </summary>
        /// <param name="invoice">发票</param>
        /// <returns></returns>
        protected virtual Task<DataResult> PreSaveAsync(TEntity invoice) => Task.FromResult(DataResult.Success);

        /// <summary>
        /// 在保存时调用
        /// </summary>
        /// <param name="invoice">要保存的发票</param>
        /// <returns></returns>
        protected virtual Task OnSaveAsync(TEntity invoice) => Task.CompletedTask;

        /// <summary>
        /// 在保存完成后调用
        /// </summary>
        /// <param name="invoice">发票</param>
        protected virtual Task PostSaveAsync(TEntity invoice) => Task.CompletedTask;


        /// <summary>
        /// 删除发票
        /// </summary>
        /// <param name="ids">发票ID</param>
        /// <returns></returns>
        public async Task<DataResult> DeleteAsync(params long[] ids)
        {
            await TenantDb.Ado.BeginTranAsync();
            try
            {
                var apps = await TenantDb.Queryable<TEntity>().Where(x => ids.Contains(x.Id)).Select(x => new TEntity
                {
                    Id = x.Id,
                    Mode = x.Mode,
                    IsLocked = x.IsLocked
                }).ToListAsync();

                if (apps.Count == 0)
                    return DataResult.FailedWithDesc(nameof(MultiLanguageConst.EmptyData));

                var details = await TenantDb.Queryable<ApplicationDetail>().Where(x => ids.Contains(x.ApplicationId)).Select(
                    x => new ApplicationDetail
                    {
                        Id = x.Id,
                        ApplicationId = x.ApplicationId,
                        DetailId = x.DetailId,
                        RefId = x.RefId,
                        RecordId = x.RecordId,
                        ApplyAmount = x.ApplyAmount,
                        OriginalAmount = x.OriginalAmount
                    }).ToListAsync();

                foreach (var app in apps)
                    app.Details = details.FindAll(x => x.ApplicationId == app.Id);

                var result = PreDelete(apps);
                if (!result.Succeeded)
                    return result;

                await OnDeleteDetailAsync(apps, DeleteOption.Entire);
                await TenantDb.DeleteNav<TEntity>(x => ids.Contains(x.Id)).Include(x => x.Details).ExecuteCommandAsync();
                await TenantDb.Ado.CommitTranAsync();

                PostDeleteAsync(apps, DeleteOption.Entire);

                return DataResult.Success;
            }
            catch (Exception ex)
            {
                await TenantDb.Ado.RollbackTranAsync();
                await ex.LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
            }
        }

        /// <summary>
        /// 删除发票费用明细
        /// </summary>
        /// <param name="ids">明细ID</param>
        /// <returns></returns>
        public async Task<DataResult> DeleteDetailAsync(params long[] ids)
        {
            await TenantDb.Ado.BeginTranAsync();
            try
            {
                var details = await TenantDb.Queryable<ApplicationDetail>().Where(x => ids.Contains(x.Id)).Select(
                x => new ApplicationDetail
                {
                    Id = x.Id,
                    ApplicationId = x.ApplicationId,
                    DetailId = x.DetailId,
                    RefId = x.RefId,
                    RecordId = x.RecordId,
                    ApplyAmount = x.ApplyAmount,
                    OriginalAmount = x.OriginalAmount
                }).ToListAsync();

                if (details.Count == 0)
                    return DataResult.FailedWithDesc(nameof(MultiLanguageConst.EmptyData));

                var invIds = details.Select(x => x.ApplicationId).Distinct().ToList();
                var invoices = await TenantDb.Queryable<TEntity>().Where(x => invIds.Contains(x.Id)).Select(x => new TEntity
                {
                    Id = x.Id,
                    Mode = x.Mode,
                    IsLocked = x.IsLocked
                }).ToListAsync();

                foreach (var app in invoices)
                    app.Details = details.FindAll(x => x.ApplicationId == app.Id);

                var result = PreDelete(invoices);
                if (!result.Succeeded)
                    return result;

                await OnDeleteDetailAsync(invoices, DeleteOption.DetailOnly);
                await TenantDb.Deleteable(details).ExecuteCommandAsync();
                //重新计算发票总金额
                await RefreshInvoiceAsync(invoices);
                await TenantDb.Ado.CommitTranAsync();

                PostDeleteAsync(invoices, DeleteOption.Entire);

                return DataResult.Success;
            }
            catch (Exception ex)
            {
                await TenantDb.Ado.RollbackTranAsync();
                await ex.LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
            }
        }

        /// <summary>
        /// 删除发票明细
        /// </summary>
        /// <param name="ids">发票明细ID</param>
        /// <returns></returns>
        public async Task<DataResult> DeleteInvoiceDetailAsync(params long[] ids)
        {
            await TenantDb.Ado.BeginTranAsync();
            try
            {
                var invDetails = await TenantDb.Queryable<InvoiceDetail>().Where(x => ids.Contains(x.Id))
                    .Select(x => new { x.ApplicationId, x.Amount }).ToListAsync();
                var groups = invDetails.GroupBy(x => x.ApplicationId);
                foreach (var g in groups)
                {
                    var list = g.Select(x => new TEntity { Id = g.Key, InvoiceAmount = g.Sum(x => x.Amount) }).ToList();
                    //更新发票主表的开票金额
                    await TenantDb.Updateable(list).PublicSetColumns(x => x.InvoiceAmount, "-")
                        .UpdateColumns(x => new { x.InvoiceAmount }).ExecuteCommandAsync();
                }

                await TenantDb.Deleteable<InvoiceDetail>().Where(x => ids.Contains(x.Id)).ExecuteCommandAsync();
                //删除对应关系
                await TenantDb.Deleteable<ApplicationDetailRelation>().Where(x => ids.Contains(x.InvoiceDetailId)).ExecuteCommandAsync();

                await TenantDb.Ado.CommitTranAsync();
                return DataResult.Success;
            }
            catch (Exception ex)
            {
                await TenantDb.Ado.RollbackTranAsync();
                await ex.LogAsync(Db);
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
            }
        }

        /// <summary>
        /// 在删除发票或其明细之前调用，用于检查状态
        /// </summary>
        /// <param name="invoices">发票</param>
        /// <returns></returns>
        protected virtual DataResult PreDelete(List<TEntity> invoices)
        {
            if (invoices.Any(x => x.IsLocked))
                return DataResult.FailedWithDesc(nameof(MultiLanguageConst.InvoiceIsLocked));

            return DataResult.Success;
        }

        /// <summary>
        /// 在执行删除发票或其明细时调用
        /// </summary>
        /// <param name="invoices">发票及其明细</param>
        /// <param name="deleteOption">发票删除选项</param>
        /// <returns></returns>
        protected virtual async Task OnDeleteDetailAsync(List<TEntity> invoices, DeleteOption deleteOption)
        {
            var appIds = invoices.Select(x => x.Id);

            if (deleteOption == DeleteOption.DetailOnly)
            {
                //删除明细需要同时变更发票明细
                foreach (var item in invoices)
                    BuildInvoiceDetailAsync(item, BuildOption.Delete);

                var excludeIds = invoices.SelectMany(x => x.Details).Select(x => x.Id);
                var details = await TenantDb.Queryable<ApplicationDetail>().Where(x => appIds.Contains(x.ApplicationId) && !excludeIds.Contains(x.Id))
                    .Select(x => new ApplicationDetail
                    {
                        Id = x.Id,
                        ApplicationId = x.ApplicationId,
                        RecordId = x.RecordId,
                        FeeId = x.FeeId,
                        ApplyAmount = x.ApplyAmount
                    }).ToListAsync();
                foreach (var item in invoices)
                {
                    //重新设置申请明细与总金额
                    item.Details = details.FindAll(x => x.ApplicationId == item.Id);
                    item.ApplyAmount = item.Details.Sum(x => x.ApplyAmount);
                    item.AmountUppercase = new Money(item.ApplyAmount).ToString();
                }

                await TenantDb.Updateable(invoices).UpdateColumns(x => new
                {
                    x.ApplyAmount,
                    x.AmountUppercase
                }).ExecuteCommandAsync();

                //删除明细之间的关系
                await TenantDb.Deleteable<ApplicationDetailRelation>().Where(x => excludeIds.Contains(x.DetailId)).ExecuteCommandAsync();
            }
            else if (deleteOption == DeleteOption.Entire)
            {
                //删除发票主表则同时删除对应发票明细
                await TenantDb.Deleteable<InvoiceDetail>().Where(x => appIds.Contains(x.ApplicationId)).ExecuteCommandAsync();

                //删除明细之间的关系
                await TenantDb.Deleteable<ApplicationDetailRelation>().Where(x => appIds.Contains(x.InvoiceId)).ExecuteCommandAsync();
            }

            foreach (var item in invoices)
            {
                //还原费用表的已开票金额
                var fees = item.Details?.Select(x => new FeeRecord { Id = x.RecordId, InvoiceAmount = x.OriginalAmount }).ToList();

                var updateable = TenantDb.Updateable(fees).PublicSetColumns(x => x.InvoiceAmount, "-");

                if (item.Mode == InvoiceMode.Applcation)
                    updateable = updateable.PublicSetColumns(x => x.OrderInvSettlementAmount, "-")
                        .UpdateColumns(x => new { x.OrderInvSettlementAmount });

                await updateable.UpdateColumns(x => new { x.InvoiceAmount }).ExecuteCommandAsync();

            }

        }

        /// <summary>
        /// 在删除完成后调用
        /// </summary>
        /// <param name="invoices">发票及其明细</param>
        /// <param name="deleteOption">发票删除选项</param>
        protected virtual Task PostDeleteAsync(List<TEntity> invoices, DeleteOption deleteOption) => Task.CompletedTask;


        /// <summary>
        /// 设置发票的锁定状态
        /// </summary>
        /// <param name="isLocked">是否锁定</param>
        /// <param name="ids">发票ID</param>
        /// <returns></returns>
        public async Task<DataResult> SetLockAsync(bool isLocked, params long[] ids)
        {
            var dt = DateTime.Now;
            var userId = long.Parse(User.UserId);
            var list = ids.Select(x => new TEntity
            {
                Id = x,
                IsLocked = isLocked,
                LockTime = isLocked ? dt : null,
                LockUserId = isLocked ? userId : null
            }).ToList();
            int rows = await TenantDb.Updateable(list)
                .UpdateColumns(x => new { x.IsLocked, x.LockTime, x.LockUserId }).ExecuteCommandAsync();

            return rows > 0 ? DataResult.Success : DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
        }

        /// <summary>
        /// 设置发票的作废状态
        /// </summary>
        /// <param name="isCancelled">是否锁定</param>
        /// <param name="ids">发票ID</param>
        /// <returns></returns>
        public async Task<DataResult> SetCancelAsync(bool isCancelled, params long[] ids)
        {
            var dt = DateTime.Now;
            var userId = long.Parse(User.UserId);
            var list = ids.Select(x => new TEntity
            {
                Id = x,
                IsCancelled = isCancelled,
                CancelTime = isCancelled ? dt : null,
                CancelUserId = isCancelled ? userId : null
            }).ToList();
            int rows = await TenantDb.Updateable(list)
                .UpdateColumns(x => new { x.IsCancelled, x.CancelTime, x.CancelUserId }).ExecuteCommandAsync();

            return rows > 0 ? DataResult.Success : DataResult.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
        }
    }

}