using Magicodes.ExporterAndImporter.Excel;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using OfficeOpenXml.FormulaParsing.Excel.Functions.Text;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using TaskManager.Entity;
using TaskManager.EntityFramework.Repository;
using TaskManager.EntityFramework;
using Wood.Service.Controllers;
using Magicodes.ExporterAndImporter.Core.Models;
using System.Transactions;
using Wood.Util;

namespace Wood.Service.Datas
{
    public class SupplierInfoDtService : NormalBaseController<SUPPLIER_INFO_DT>
    {
        const string _taskName = "供应商基础信息";

        private readonly IRepository<TaskSub> _taskSubRepository;
        private readonly IRepository<SUPPLIER_INFO> _supplierInfoRepository;
        private readonly IRepository<TaskConifgure> _taskConfigureRepository;
        private readonly CommonService _commonService;

        public SupplierInfoDtService(JobDbContext context, IServiceProvider builder, IConfiguration configuration, IRepository<SUPPLIER_INFO_DT> repository, IRepository<TaskSub> taskSubRepository, IRepository<SUPPLIER_INFO> supplierInfoRepository, IRepository<TaskConifgure> taskConfigureRepository, CommonService commonService) : base(context, builder, configuration, repository)
        {
            _taskSubRepository = taskSubRepository;
            _supplierInfoRepository = supplierInfoRepository;
            _taskConfigureRepository = taskConfigureRepository;
            _commonService = commonService;

            _taskSubRepository.SetDbContext(_context);
            _supplierInfoRepository.SetDbContext(_context);
            _taskConfigureRepository.SetDbContext(_context);

        }

        [HttpPost]
        [Route("import")]
        public override async Task<IActionResult> Import(IFormFile file)
        {
            if (file == null || file.Length == 0)
            {
                return NotFound();
            }
            MemoryStream memStream = new MemoryStream();
            await file.CopyToAsync(memStream);

            var importer = new ExcelImporter();
            ImportResult<SUPPLIER_INFO_DT> impResult = await importer.Import<SUPPLIER_INFO_DT>(memStream);
            if (impResult.HasError)
            {
                StringBuilder sb = new StringBuilder();
                foreach (var rowErr in impResult.RowErrors)
                {
                    string temp = string.Join("；", rowErr.FieldErrors.Select(itm => $"第{rowErr.RowIndex}行：{itm.Key}-{itm.Value}"));
                    sb.AppendLine(temp);
                }
                foreach (var templateErr in impResult.TemplateErrors)
                {
                    string temp = $"列名：{templateErr.RequireColumnName}，错误信息：{templateErr.Message}";
                    sb.AppendLine(temp);
                }
                throw new Exception(sb.ToString());
            }
            var entityLst = impResult.Data;

            using var transaction = _context.Database.BeginTransaction();
            try
            {
                #region 数据库操作
                //添加任务
                TaskSub taskSubObj = _commonService.BuildTaskSub(entityLst.Count, _taskName);
                await _taskSubRepository.AddAsync(taskSubObj);
                //添加任务明细
                foreach (var empDtObj in entityLst)
                {
                    SUPPLIER_INFO empObj = ExpressionGenericMapper<SUPPLIER_INFO_DT, SUPPLIER_INFO>.Trans(empDtObj);
                    empObj.TaskId = taskSubObj.TaskId;
                    await _supplierInfoRepository.AddAsync(empObj);
                }

                foreach (var empDtObj in entityLst)
                {
                    //以“供应商代码+工厂代码+车间代码+产线代码+工位代码”为唯一标识，做新增或更新存储
                    var firstObj = _context.Set<SUPPLIER_INFO_DT>().FirstOrDefault(
                        itm => itm.SupplierCode == empDtObj.SupplierCode
                        && itm.PlantId == empDtObj.PlantId
                        && itm.WorkshopId == empDtObj.WorkshopId
                        && itm.ProductionLineId == empDtObj.ProductionLineId
                        && itm.StationId == empDtObj.StationId
                        );
                    if (firstObj == null)
                    {
                        var ret = await base.Create(empDtObj);
                    }
                    else
                    {
                        var ret = await base.Update(empDtObj);
                    }
                }
                #endregion

                transaction.Commit();
                return Ok(true);
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                throw new Exception("方法体执行报错，事务回滚：" + ex.Message);
            }
        }

        public override async Task<ActionResult<SUPPLIER_INFO_DT>> Create(SUPPLIER_INFO_DT entity)
        {
            using var transaction = _context.Database.BeginTransaction();
            try
            {
                #region 数据库操作
                //添加任务
                TaskSub taskSubObj = _commonService.BuildTaskSub(1, _taskName);

                await _taskSubRepository.AddAsync(taskSubObj);

                //添加任务明细
                SUPPLIER_INFO empObj = ExpressionGenericMapper<SUPPLIER_INFO_DT, SUPPLIER_INFO>.Trans(entity);
                empObj.TaskId = taskSubObj.TaskId;
                await _supplierInfoRepository.AddAsync(empObj);

                var firstObj = _context.Set<SUPPLIER_INFO_DT>().FirstOrDefault(
                    itm => itm.SupplierCode == entity.SupplierCode
                    && itm.PlantId == entity.PlantId
                    && itm.WorkshopId == entity.WorkshopId
                    && itm.ProductionLineId == entity.ProductionLineId
                    && itm.StationId == entity.StationId
                    );
                if (firstObj == null)
                {
                    var ret = await base.Create(entity);
                }
                else
                {
                    throw new Exception("数据库已经存在，不能重复插入");
                }
                #endregion

                transaction.Commit();
                return Ok(true);
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                throw new Exception("方法体执行报错，事务回滚：" + ex.Message);
            }
        }

        public override async Task<IActionResult> Update(SUPPLIER_INFO_DT entity)
        {
            using var transaction = _context.Database.BeginTransaction();
            try
            {
                #region 数据库操作
                //添加任务
                TaskSub taskSubObj = _commonService.BuildTaskSub(1, _taskName);
                await _taskSubRepository.AddAsync(taskSubObj);
                //添加任务明细
                SUPPLIER_INFO empObj = ExpressionGenericMapper<SUPPLIER_INFO_DT, SUPPLIER_INFO>.Trans(entity);
                empObj.TaskId = taskSubObj.TaskId;
                await _supplierInfoRepository.AddAsync(empObj);

                var firstObj = _context.Set<SUPPLIER_INFO_DT>().FirstOrDefault(
                    itm => itm.SupplierCode == entity.SupplierCode
                    && itm.PlantId == entity.PlantId
                    && itm.WorkshopId == entity.WorkshopId
                    && itm.ProductionLineId == entity.ProductionLineId
                    && itm.StationId == entity.StationId
                    );
                if (firstObj == null)
                {
                    throw new Exception("数据库不存在，不能更新");
                }
                else
                {
                    var ret = await base.Update(entity);
                }
                #endregion

                transaction.Commit();
                return Ok(true);
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                throw new Exception("方法体执行报错，事务回滚：" + ex.Message);
            }
        }
    }
}