using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.IO;
using System.Linq;
using System.Linq.Dynamic.Core;
using System.Linq.Expressions;
using System.Reflection;
using System.Security.Principal;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using AutoMapper.Internal;
using DocumentFormat.OpenXml.Math;
using DocumentFormat.OpenXml.Office2010.ExcelAc;
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml.Vml.Office;
using DocumentFormat.OpenXml.Wordprocessing;
using EFCore.BulkExtensions;
using JetBrains.Annotations;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Microsoft.Net.Http.Headers;
using Volo.Abp;
using Volo.Abp.Application.Dtos;
using Volo.Abp.Application.Services;
using Volo.Abp.Caching;
using Volo.Abp.Domain.Entities;
using Volo.Abp.Domain.Entities.Auditing;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.EventBus.Local;
using Volo.Abp.SettingManagement;
using Volo.Abp.Uow;
using Win_in.Sfs.Basedata.Application.Contracts;
using Win_in.Sfs.Shared.Application.Contracts;
using Win_in.Sfs.Shared.Application.Contracts.ExportAndImport;
using Win_in.Sfs.Shared.Domain;
using Win_in.Sfs.Shared.Domain.Shared;
using Win_in.Sfs.Shared.Event;

namespace Win_in.Sfs.Shared.Application;

/// <summary>
/// 应用服务基类
/// </summary>
public abstract class SfsCrudWithDetailsAppServiceBase<TEntity, TEntityDto, TRequestInput, TCreateInput,
                                                        TDetail, TDetailDTO, TDetailRequestInput, TImportInput>
    : CrudAppService<TEntity, TEntityDto, Guid, TRequestInput, TCreateInput>
        , ISfsCrudWithDetailsAppService<TEntityDto, TRequestInput, TCreateInput, TDetailDTO, TDetailRequestInput>
        , ISfsGetByNumberAppService<TEntityDto>
    where TEntity : class, IEntity<Guid>
    where TEntityDto : class, IEntityDto<Guid>, new()
    where TRequestInput : SfsRequestInputBase
    where TDetail : SfsDetailEntityBase
    where TDetailDTO : class, new()
    where TImportInput : class, new()
{
    protected readonly ISfsRepositoryBase<TEntity> _repository;

    /// <summary>
    /// 实体名称
    /// </summary>
    protected readonly string EntityClassName = typeof(TEntity).Name;

    protected SfsCrudWithDetailsAppServiceBase(ISfsRepositoryBase<TEntity> repository) : base(repository)
    {
        _repository = repository;
    }

    protected IDistributedCache<TEntityDto> Cache => LazyServiceProvider.LazyGetRequiredService<IDistributedCache<TEntityDto>>();

    protected IDocumentSettingAppService DocumentSettingAppService => LazyServiceProvider.LazyGetRequiredService<IDocumentSettingAppService>();
    protected IExportImportService ExportImportService => LazyServiceProvider.LazyGetRequiredService<IExportImportService>();

    protected IHttpContextAccessor HttpContextAccessor => LazyServiceProvider.LazyGetRequiredService<IHttpContextAccessor>();

    protected ILocalEventBus LocalEventBus => LazyServiceProvider.LazyGetRequiredService<ILocalEventBus>();

    /// <summary>
    ///
    /// </summary>
    protected ISettingManager SettingManager => LazyServiceProvider.LazyGetRequiredService<ISettingManager>();

    /// <summary>
    /// 添加明细列表
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="list">明细列表</param>
    [HttpPost("details/")]
    public virtual async Task AddDetailListAsync(Guid id, List<TDetailDTO> list)
    {
        var entity = await _repository.GetAsync(id).ConfigureAwait(false);
        Check.NotNull(entity, EntityClassName);
        var details = ObjectMapper.Map<List<TDetailDTO>, List<TDetail>>(list);
        if (entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
        {
            masterEntity.AddDetails(details);
        }
    }

    /// <summary>
    /// 新增实体
    /// </summary>
    /// <param name="input">CreateInput</param>
    [HttpPost("")]
    public override async Task<TEntityDto> CreateAsync(TCreateInput input)
    {
        await CheckCreatePolicyAsync().ConfigureAwait(continueOnCapturedContext: false);
        var entity = input.ToObject<TEntity>();
        SetIdForGuids(entity);
        TryToSetTenantId(entity);
        await Repository.InsertAsync(entity, autoSave: true).ConfigureAwait(continueOnCapturedContext: false);
        var dto = entity.ToObject<TEntityDto>();
        await Cache.SetItemAsync(dto.Id.ToString(), dto, SfsCacheConst.SeveralMinutes).ConfigureAwait(false);
        return dto;
    }

    /// <summary>
    /// 删除实体
    /// </summary>
    /// <param name="id">实体Id</param>
    [HttpDelete("{id}")]
    public override async Task DeleteAsync(Guid id)
    {
        await Repository.DeleteAsync(id).ConfigureAwait(false);
        await Cache.DeleteItemAsync(id.ToString()).ConfigureAwait(false);
        return;
    }

    /// <summary>
    /// 删除明细
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="detailId">明细Id</param>
    /// <returns></returns>
    [HttpDelete("details/{id}")]
    public virtual async Task DeleteDetailAsync(Guid id, Guid detailId)
    {
        var entity = await _repository.GetAsync(id).ConfigureAwait(false);
        Check.NotNull(entity, EntityClassName);
        if (entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
        {
            masterEntity.RemoveDetail(detailId);
        }
    }

    /// <summary>
    /// 导出数据
    /// </summary>
    [HttpPost("export")]
    public virtual async Task<IActionResult> ExportAsync(TRequestInput input)
    {
        var expression = input.Condition.Filters?.Count > 0
                            ? input.Condition.Filters.ToLambda<TEntity>()
                            : p => true;
        var entities = await _repository.GetPagedListAsync(expression, input.SkipCount, input.MaxResultCount,
                input.Sorting, true).ConfigureAwait(false);
        var list = ObjectMapper.Map<List<TEntity>, List<TEntityDto>>(entities);
        var hasDetails = typeof(TEntity) is SfsMasterAggregateRootBase<TDetail> detailEntity;
        return ExportImportService.Export(list, detailsProptyName: hasDetails ? nameof(detailEntity.Details) : null);
    }

    /// <summary>
    /// 按条件获取全部数据列表
    /// </summary>
    /// <param name="sfsRequestInput">RequestInput</param>
    /// <param name="includeDetails">是否包含明细</param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    [HttpPost("get-all")]
    public virtual async Task<List<TEntityDto>> GetAllListByFilterAsync(TRequestInput sfsRequestInput, bool includeDetails = false,
        CancellationToken cancellationToken = default)
    {
        Expression<Func<TEntity, bool>> expression = sfsRequestInput.Condition.Filters?.Count > 0
            ? sfsRequestInput.Condition.Filters.ToLambda<TEntity>()
            : p => true;
        return await GetAllListAsync(expression, sfsRequestInput.Sorting, includeDetails, cancellationToken).ConfigureAwait(false);
    }

    /// <summary>
    /// 按Id获取实体
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <returns></returns>
    [HttpGet("{id}")]
    public override async Task<TEntityDto> GetAsync(Guid id)
    {
        var dto = await Cache.GetOrAddItemAsync(
            id.ToString(),
            async () => await base.GetAsync(id).ConfigureAwait(false),
            SfsCacheConst.SeveralMinutes).ConfigureAwait(false);

        return dto;
    }

    /// <summary>
    /// 按编号获取实体
    /// </summary>
    /// <param name="number">编号</param>
    /// <returns></returns>
    [HttpGet("by-number")]
    public virtual async Task<TEntityDto> GetByNumberAsync(string number)
    {
        var entity = (await _repository.GetQueryableAsync().ConfigureAwait(false)).Where("Number=@0", number).FirstOrDefault();
        var dto = ObjectMapper.Map<TEntity, TEntityDto>(entity);
        return dto;
    }

    /// <summary>
    /// 按条件获取数量
    /// request sample
    /// {
    /// "maxResultCount": 1000,
    /// "skipCount": 0,
    /// "sorting": "",
    /// "condition": { "filters": []}
    /// }
    /// </summary>
    /// <param name="sfsRequestInput">RequestInput</param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    [HttpPost("count")]
    public virtual async Task<long> GetCountByFilterAsync(TRequestInput sfsRequestInput, CancellationToken cancellationToken = default)
    {
        Expression<Func<TEntity, bool>> expression = sfsRequestInput.Condition.Filters?.Count > 0
            ? sfsRequestInput.Condition.Filters.ToLambda<TEntity>()
            : p => true;

        var count = await _repository.GetCountAsync(expression, cancellationToken).ConfigureAwait(false);
        return count;
    }

    /// <summary>
    /// 获取明细
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="detailId">明细Id</param>
    /// <returns></returns>
    [HttpGet("details/{id}")]
    public virtual async Task<TDetailDTO> GetDetailAsync(Guid id, Guid detailId)
    {
        var entity = await _repository.GetAsync(id).ConfigureAwait(false);
        Check.NotNull(entity, EntityClassName);
        if (entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
        {
            var detail = masterEntity.GetDetail(detailId);
            var dto = ObjectMapper.Map<TDetail, TDetailDTO>(detail);
            return dto;
        }
        return null;
    }

    /// <summary>
    /// 按条件获取明细列表
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="requestInput">明细RequestInput</param>
    /// <returns></returns>
    [HttpGet("details/")]
    public virtual async Task<List<TDetailDTO>> GetDetailListAsync(Guid id, TDetailRequestInput requestInput)
    {
        var entity = await _repository.GetAsync(id).ConfigureAwait(false);
        Check.NotNull(entity, EntityClassName);
        if (entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
        {
            var details = masterEntity.GetDetailList(d => d.MasterID == id).ToList();
            var dtos = ObjectMapper.Map<List<TDetail>, List<TDetailDTO>>(details);
            return dtos;
        }
        return null;
    }

    /// <summary>
    /// 屏蔽基类方法
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [NonAction]
    public override async Task<PagedResultDto<TEntityDto>> GetListAsync(TRequestInput input)
    {
        return await base.GetListAsync(input).ConfigureAwait(false);
    }

    /// <summary>
    /// 按条件获取分页列表
    /// request sample
    /// {
    /// "maxResultCount": 1000,
    /// "skipCount": 0,
    /// "sorting": "",
    /// "condition": { "filters": []}
    /// }
    /// </summary>
    /// <param name="sfsRequestInput">RequestInput</param>
    /// <param name="includeDetails">是否包含明细</param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    [HttpPost("list")]
    public virtual async Task<PagedResultDto<TEntityDto>> GetPagedListByFilterAsync(TRequestInput sfsRequestInput, bool includeDetails = false,
        CancellationToken cancellationToken = default)
    {
        Expression<Func<TEntity, bool>> expression = sfsRequestInput.Condition.Filters?.Count > 0
            ? sfsRequestInput.Condition.Filters.ToLambda<TEntity>()
            : p => true;

        return await GetPagedListAsync(expression, sfsRequestInput.SkipCount, sfsRequestInput.MaxResultCount, sfsRequestInput.Sorting, includeDetails, cancellationToken).ConfigureAwait(false);
    }

    /// <summary>
    /// 按关键字获取分页列表
    /// </summary>
    /// <param name="keyWord">关键字</param>
    /// <param name="skipCount">跳过数</param>
    /// <param name="maxResultCount">最大结果数</param>
    /// <param name="sorting">排序</param>
    /// <param name="includeDetails">是否包含明细</param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    [HttpPost("search")]
    public virtual async Task<PagedResultDto<TEntityDto>> GetPagedListByKeyWordAsync(string keyWord, int skipCount, int maxResultCount, string sorting,
        bool includeDetails = false, CancellationToken cancellationToken = default)
    {
        var expression = BuildSearchExpression(keyWord);
        return await GetPagedListAsync(expression, skipCount, maxResultCount, sorting, includeDetails, cancellationToken).ConfigureAwait(false);
    }

    /// <summary>
    /// 导入数据
    /// </summary>
    [HttpPost("import")]
    [Consumes("multipart/form-data")]
    [UnitOfWork]
    public virtual async Task<IActionResult> ImportAsync([FromForm] SfsImportRequestInput requestInput, [Required] IFormFile file)
    {
        using var ms = new MemoryStream();
        await file.OpenReadStream().CopyToAsync(ms).ConfigureAwait(false);
        var inputFileBytes = ms.GetAllBytes();
        var result = await ImportInternalAsync(requestInput, inputFileBytes);
        var bytes = result.FileContents;
        result.FileContents = null;

        HttpContextAccessor.HttpContext.Response.Headers.AccessControlExposeHeaders="X-Response";
        HttpContextAccessor.HttpContext.Response.Headers.Add("X-Response",
            JsonSerializer.Serialize(new { result.ExceptionMessage, result.FileName, result.FileCode, result }));

        Console.WriteLine(@"导入错误信息："+result.ExceptionMessage);

        var resultAction = new TestResult(bytes, ExportImportService.ContentType) { FileDownloadName = result.FileName };
        resultAction.errorNum = result.ErrorNum;
        resultAction.successNum = resultAction.successNum;
        return resultAction;
    }

    public class TestResult: FileContentResult
    {
        public byte[]_bytes { get; set; }
        public int errorNum { get; set; }
        public int successNum { get; set; }

        public TestResult([NotNull] byte[] fileContents, [NotNull] string contentType) : base(fileContents, contentType)
        {
        }

        public TestResult([NotNull] byte[] fileContents, [NotNull] MediaTypeHeaderValue contentType) : base(fileContents, contentType)
        {
        }
    }

    /// <summary>
    /// 获取导入模板
    /// </summary>
    [HttpPost("import-template")]
    public virtual IActionResult ImportTemplateAsync()
    {
        return ExportImportService.GetImportTemplate<TImportInput>();
    }

    /// <summary>
    /// 修改实体
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="input">UpdateInput</param>
    /// <returns></returns>
    [HttpPut("{id}")]
    public override async Task<TEntityDto> UpdateAsync(Guid id, TCreateInput input)
    {
        try
        {
            //Value Inject 替换 AutoMapper
            await CheckUpdatePolicyAsync().ConfigureAwait(continueOnCapturedContext: false);
            TEntity entity = await GetEntityByIdAsync(id).ConfigureAwait(continueOnCapturedContext: false);
            entity.FromObject(input);
            await Repository.UpdateAsync(entity, autoSave: true).ConfigureAwait(continueOnCapturedContext: false);
            var dto = entity.ToObject<TEntityDto>();
            await Cache.SetItemAsync(dto.Id.ToString(), dto, SfsCacheConst.SeveralMinutes).ConfigureAwait(false);
            return dto;
        }
        catch (Exception ex)
        {
            var message = ex.Message.Contains("Database operation expected to affect 1 row(s) but actually affected 0 row(s)")
                ? $" {typeof(TEntityDto).Name} 已经被他人更改, 请刷新数据后再更新."
                : ex.ToString();
            throw new UserFriendlyException(message);
        }
    }

    /// <summary>
    /// 更新明细
    /// </summary>
    /// <param name="id">实体Id</param>
    /// <param name="detailId">明细Id</param>
    /// <param name="updateDTO">明细UpdateDto</param>
    /// <returns></returns>
    [HttpPut("details/{id}")]
    public virtual async Task UpdateDetailAsync(Guid id, Guid detailId, TDetailDTO updateDTO)
    {
        var entity = await _repository.GetAsync(id).ConfigureAwait(false);
        Check.NotNull(entity, EntityClassName);
        var detail = ObjectMapper.Map<TDetailDTO, TDetail>(updateDTO);

        if (entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
        {
            masterEntity.ReplaceDetail(detailId, detail);
        }
    }

    /// <summary>
    /// 构造搜索条件表达式
    /// </summary>
    /// <param name="keyWord">搜索关键字</param>
    /// <returns></returns>
    protected virtual Expression<Func<TEntity, bool>> BuildSearchExpression(string keyWord)
    {
        // p => p.Id.ToString().Contains(keyWord);
        var expression = typeof(TEntity).GetExpressionByProperty<TEntity>("Number", keyWord);
        return expression;
    }

    protected virtual async Task<string> GenerateNumberAsync(string typeName, DateTime time)
    {
        var documentInput = new DocumentSettingGenerateInput(typeName, Clock.Normalize(time));

        var maxCount = 10_000;
        var tryCount = 0;
        while (true)
        {
            var number = await DocumentSettingAppService.GenerateNumberAsync(documentInput).ConfigureAwait(false);
            var entity = await GetByNumberAsync(number).ConfigureAwait(false);
            if (entity == null)
            {
                return number;
            }

            tryCount++;
            if (tryCount >= maxCount)
            {
                throw new UserFriendlyException($"无法生成 {documentInput.Type} 在 {documentInput.Time} 单据编号，请联系管理员处理。");
            }
        }
    }

    /// <summary>
    /// 按表达式条件获取分页列表
    /// </summary>
    /// <param name="expression"></param>
    /// <param name="sorting"></param>
    /// <param name="includeDetails"></param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    protected async Task<List<TEntityDto>> GetAllListAsync(Expression<Func<TEntity, bool>> expression, string sorting, bool includeDetails,
        CancellationToken cancellationToken)
    {
        var entities = await _repository.GetListAsync(expression, sorting, includeDetails, cancellationToken).ConfigureAwait(false);
        var dtos = ObjectMapper.Map<List<TEntity>, List<TEntityDto>>(entities);
        return dtos;
    }

    /// <summary>
    /// 导入查询实体，可重写
    /// </summary>
    /// <param name="importInput"></param>
    /// <returns></returns>
    protected virtual async Task<TEntity> GetEntityAsync(TImportInput importInput)
    {
        var source = await _repository.GetDbSetAsync().ConfigureAwait(false);
        return source.AsQueryable().WhereByKey(importInput)?.FirstOrDefault();
    }

    /// <summary>
    /// 按表达式条件获取分页列表
    /// </summary>
    /// <param name="expression"></param>
    /// <param name="skipCount"></param>
    /// <param name="maxResultCount"></param>
    /// <param name="sorting"></param>
    /// <param name="includeDetails"></param>
    /// <param name="cancellationToken"></param>
    /// <returns></returns>
    protected async Task<PagedResultDto<TEntityDto>> GetPagedListAsync(Expression<Func<TEntity, bool>> expression, int skipCount, int maxResultCount, string sorting, bool includeDetails,
        CancellationToken cancellationToken)
    {
        var totalCount = await _repository.GetCountAsync(expression, cancellationToken).ConfigureAwait(false);
        var entities = await _repository.GetPagedListAsync(expression, skipCount, maxResultCount, sorting, includeDetails, cancellationToken).ConfigureAwait(false);
        var dtos = ObjectMapper.Map<List<TEntity>, List<TEntityDto>>(entities);
        return new PagedResultDto<TEntityDto>(totalCount, dtos);
    }

    /// <summary>
    /// 导入数据具体实现，可重写
    /// </summary>
    [UnitOfWork]
    protected virtual async Task<SfsImportResult> ImportInternalAsync(SfsImportRequestInput requestInput, byte[] inputFileBytes)
    {
        try
        {
            var hasDetails = typeof(TEntity).GetInterfaces().Any(o => o.IsGenericType && o.GetGenericTypeDefinition() == typeof(IMasterEntity<>));
            var modelList = ExportImportService.Import<TImportInput>(inputFileBytes);
            var modelDict = new Dictionary<TImportInput, List<ValidationResult>>();
            var entityDict = new Dictionary<TEntity, EntityState>();

            foreach (var model in modelList)
            {
                // DataAnnotations 静态验证
                var validationRresults = new List<ValidationResult>();
                modelDict.Add(model, validationRresults);
                Validator.TryValidateObject(model, new ValidationContext(model, null, null), validationRresults);
            }

            // 如果没有验证错误或允许部分导入
            if (!modelDict.SelectMany(o => o.Value).Any() || requestInput.IsAllowPartImport)
            {
                // 遍历并处理导入
                if (hasDetails) //
                {
                    var groups = modelList.AsQueryable().GroupByKey();
                    foreach (var item in groups)
                    {
                        var model = item.ToList().FirstOrDefault();
                        var validationRresults = modelDict[model];
                        await ImportValidationAsync(requestInput, modelDict, entityDict, model, validationRresults, item.ToList()).ConfigureAwait(false);
                    }
                }
                else
                {
                    foreach (var item in modelDict)
                    {
                        var model = item.Key;
                        var validationRresults = item.Value;
                        await ImportValidationAsync(requestInput, modelDict, entityDict, model, validationRresults).ConfigureAwait(false);
                    }
                }
            }
            // 批量更新
            if (entityDict.Any())
            {
                entityDict=await ImportProcessingEntityAsync(entityDict).ConfigureAwait(false);

                // 调用批量验证
                var entityListStatus = await ValidateImportEntities(entityDict).ConfigureAwait(false);
                if (entityListStatus)
                {
                    await SaveImportAsync(entityDict).ConfigureAwait(false);
                }
            }
            //将需要新增的数据进行发布
            var addList= entityDict.Where(p => p.Value == EntityState.Added).Select(p=>p.Key).ToList();
            await PublishCreatedAsync(addList).ConfigureAwait(false);
            // 创建导入报告
            var reportFile = ExportImportService.GetImportReport(inputFileBytes, modelDict);
            // 创建返回值
            return new SfsImportResult
            {
                TotalNum = modelList.Count,
                ErrorNum = modelDict.Count(o => o.Value.Any()),
                FileName = reportFile.FileDownloadName,
                FileContents = reportFile.FileContents
            };
        }
        catch (Exception ex)
        {
            Logger.LogException(ex);
            return new SfsImportResult() { ExceptionMessage = ex.Message };
        }
    }

    /// <summary>
    /// 发布新增事件
    /// </summary>
    /// <param name="entities"></param>
    /// <returns></returns>
    private async Task PublishCreatedAsync(List<TEntity> entities)
    {
        try
        {
            await LocalEventBus.PublishAsync(new SfsCreatedEntityEventData<List<TEntity>>(entities),false).ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            Logger.LogDebug($"{typeof(TEntity).Name} Created Event:{ex.Message}", null);
            Console.WriteLine(ex.Source);
            throw;
        }
    }

    /// <summary>
    /// 用来重写 导入数据时可以加工数据
    /// </summary>
    /// <param name="dictionary"></param>
    /// <returns></returns>
    protected virtual async Task<Dictionary<TEntity, EntityState>> ImportProcessingEntityAsync(Dictionary<TEntity, EntityState> dictionary)
    {
        return dictionary;
    }

    /// <summary>
    /// 导入保存到数据库，可重写
    /// </summary>

    protected virtual async Task SaveImportAsync(Dictionary<TEntity, EntityState> dict)
    {
        var entityList = dict.Keys.ToList();
        var context = await _repository.GetDbContextAsync().ConfigureAwait(false);
        var list = new List<TDetail>();
        if (entityList.Count > 0)
        {
            foreach (var entity in entityList)
            {
                foreach (var propertyInfo in entity.GetType().GetProperties())
                {
                    if (propertyInfo.PropertyType.IsListType() && propertyInfo.Name == "Details")
                    {
                        var entityDetails= propertyInfo.GetValue(entity, null);

                        list.AddRange(((List<TDetail>)entityDetails)!);
                    }
                }
            }
            var bulkConfig = new BulkConfig()
            {
                SetOutputIdentity = true,
                PreserveInsertOrder = true
            };

            await context.BulkInsertOrUpdateAsync(entityList, bulkConfig).ConfigureAwait(false);
            await context.BulkInsertAsync(list).ConfigureAwait(false);
        }
    }

    /// <summary>
    /// 导入批量验证，可重写
    /// </summary>
    protected virtual async Task<bool> ValidateImportEntities(Dictionary<TEntity, EntityState> dict)
    {
        return await Task.FromResult(true).ConfigureAwait(false);
    }

    /// <summary>
    /// 导入单个输入，可重写
    /// </summary>
    /// <param name="model"></param>
    /// <param name="validationRresult"></param>
    /// <returns></returns>
    protected virtual async Task ValidateImportModelAsync(TImportInput model, List<ValidationResult> validationRresult)
    {
        await Task.CompletedTask.ConfigureAwait(false);
    }

    /// <summary>
    /// 验证单个实体，可重写
    /// </summary>
    /// <param name="model"></param>
    /// <param name="entity"></param>
    /// <param name="validationRresult"></param>
    /// <returns></returns>
    protected virtual async Task ValidateImportEntityAsync(TImportInput model, TEntity entity, List<ValidationResult> validationRresult)
    {
        await Task.CompletedTask.ConfigureAwait(false);
    }

    private async Task ImportValidationAsync(SfsImportRequestInput requestInput, Dictionary<TImportInput, List<ValidationResult>> modelDict, Dictionary<TEntity, EntityState> entityDict, TImportInput model, List<ValidationResult> validationRresults, List<TImportInput> detailModels = null)
    {
        var entity = await GetEntityAsync(model).ConfigureAwait(false);
        if (requestInput.Method == EnumImportMethod.Append)
        {
            if (entity != null)
            {
                validationRresults.Add(new ValidationResult($"无法添加，数据已存在", new string[] { "错误" }));
            }
        }
        else if (requestInput.Method == EnumImportMethod.Update)
        {
            if (entity == null)
            {
                validationRresults.Add(new ValidationResult($"无法更新，数据不存在", new string[] { "错误" }));
            }
        }
        // 不包含错误或运行部分插入时,执行动态验证
        if (!modelDict.SelectMany(o => o.Value).Any() || requestInput.IsAllowPartImport)
        {
            var hasEntity = entity != null;
            await ValidateImportModelAsync(model, validationRresults).ConfigureAwait(false);
        }
        // 不包含错误或运行部分插入时,加入批量操作列表
        if (!modelDict.SelectMany(o => o.Value).Any() || requestInput.IsAllowPartImport)
        {
            if (entity is IHasWorker worker)
            {
                worker.Worker = CurrentUser.GetUserName();
            }
            var hasEntity = entity != null;
            if (entity == null)
            {
                entity = ObjectMapper.Map<TImportInput, TEntity>(model);
                if (entity is SfsMasterAggregateRootBase<TDetail> entityWithIdAndNumber)
                {
                    entityWithIdAndNumber.SetIdAndNumberWithDetails(GuidGenerator, await GenerateNumberAsync(typeof(TEntity).Name, DateTime.Now.Date).ConfigureAwait(false));
                }
                else if (entity is ISetId entityWithId)
                {
                    entityWithId.SetId(GuidGenerator.Create());
                }
                if (entity is CreationAuditedAggregateRoot<Guid> creation)
                {
                    creation.CreationTime = DateTime.Now;
                    creation.CreatorId = CurrentUser.Id;
                }
                // 清空现有子表
                (entity as SfsMasterAggregateRootBase<TDetail>)?.Details.Clear();
            }
            else
            {
                var id = entity.Id;
                ObjectMapper.Map(model, entity);
                // ObjectMapper.Map 清空了 id,因此需要把预存的 id 取回
                if (entity is ISetId entityWithId)
                {
                    entityWithId.SetId(id);
                }
            }
            // 设置子表
            if (detailModels != null && entity is SfsMasterAggregateRootBase<TDetail> masterEntity)
            {
                foreach (var item in detailModels)
                {
                    var detail = ObjectMapper.Map<TImportInput, TDetail>(item);
                    masterEntity.Details.Add(detail);
                    if (detail is ISetId entityWithId)
                    {
                        entityWithId.SetId(GuidGenerator.Create());
                    }
                    detail.SetIdAndNumber(GuidGenerator, masterEntity.Id, masterEntity.Number);
                    if (detail is CreationAuditedAggregateRoot<Guid> creation)
                    {
                        creation.CreationTime = DateTime.Now;
                        creation.CreatorId = CurrentUser.Id;
                    }
                }
            }
            await ValidateImportEntityAsync(model, entity, validationRresults).ConfigureAwait(false);
            entityDict.Add(entity, hasEntity ? EntityState.Modified : EntityState.Added);
        }
    }
}