public async Task <ActionResult> Import([FromForm] IFormFile file2)
        {
            var    URL       = _configuration.GetSection("AppSettings:URL").Value.ToSafetyString();
            var    url       = URL + "/workplace";
            string token     = Request.Headers["Authorization"];
            var    userId    = Extensions.GetDecodeTokenByProperty(token, "nameid").ToInt();
            var    aliasUser = Extensions.GetDecodeTokenByProperty(token, ClaimTypeEnum.Alias.ToString()).ToSafetyString();

            IFormFile file      = Request.Form.Files["UploadedFile"];
            var       datasList = new List <UploadDataViewModel>();

            //var datasList2 = new List<UploadDataVM2>();

            if ((file != null) && (file.Length > 0) && !string.IsNullOrEmpty(file.FileName))
            {
                string fileName        = file.FileName;
                string fileContentType = file.ContentType;
                byte[] fileBytes       = new byte[file.Length];
                //var data = file.InputStream.Read(fileBytes, 0, Convert.ToInt32(file.Length));

                using (var package = new ExcelPackage(file.OpenReadStream()))
                {
                    var currentSheet = package.Workbook.Worksheets;
                    var workSheet    = currentSheet.First();
                    var noOfCol      = workSheet.Dimension.End.Column;
                    var noOfRow      = workSheet.Dimension.End.Row;

                    for (int rowIterator = 2; rowIterator <= noOfRow; rowIterator++)
                    {
                        var value        = string.Empty;
                        var target_value = string.Empty;
                        if (workSheet.Cells[rowIterator, 3].Value != null)
                        {
                            value = workSheet.Cells[rowIterator, 3].Value.ToSafetyString();
                        }
                        else
                        {
                            value = "0";
                        }
                        if (workSheet.Cells[rowIterator, 4].Value != null)
                        {
                            target_value = workSheet.Cells[rowIterator, 4].Value.ToSafetyString();
                        }
                        else
                        {
                            target_value = "0";
                        }

                        if (workSheet.Cells[rowIterator, 1].Value != null)
                        {
                            datasList.Add(new UploadDataViewModel()
                            {
                                KPILevelCode = workSheet.Cells[rowIterator, 1].Value.ToSafetyString().ToUpper() ?? null,
                                Value        = value,
                                TargetValue  = target_value,
                                PeriodValue  = workSheet.Cells[rowIterator, 5].Value.ToInt(),
                                Year         = workSheet.Cells[rowIterator, 6].Value.ToInt(),
                                CreateTime   = DateTime.Now,
                            });
                        }
                    }
                }

                var model = await _dataService.ImportData(datasList, aliasUser, userId);

                //signalr

                await _hubContext.Clients.All.SendAsync("ReceiveMessage", "user", "message");

                if (model.ListDatasSuccess.Count > 0)
                {
                    string content2 = System.IO.File.ReadAllText("./wwwroot/Templates/UploadSuccessfully.html");
                    content2 = content2.Replace("{{{content}}}", "<b style='color:green'>Upload Data Successfully!</b><br/> Dear Updater, <br/> You just uploaded the KPIs as below list: " + "<br/>" +
                                                "<b style='color:green'>上傳資料成功!</b><br/> 親愛的資料更新者, <br/> 您已更新以下的KPI資料: ");
                    var html2 = string.Empty;
                    foreach (var item in model.ListDatasSuccess.DistinctBy(x => x.KPIName))
                    {
                        var area = _levelService.GetNode(item.KPILevelCode);
                        html2 += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                             </tr>"
                                 .Replace("{{area}}", area)
                                 .Replace("{{code}}", item.KPILevelCode)
                                 .Replace("{{kpiname}}", item.KPIName);
                    }
                    content2 = content2.Replace("{{{html-template}}}", html2).Replace("{{{href}}}", url);
                    Thread thread = new Thread(async() =>
                    {
                        await _mailHelper.SendEmailRangeAsync(model.ListSendMail, "[KPI System] Upload Data successfully(上傳資料成功)", content2);
                    });
                    thread.Start();
                }

                if (model.ListDatasOverTarget != null && model.ListDatasOverTarget.Count > 0)
                {
                    string content = System.IO.File.ReadAllText("./wwwroot/Templates/overTarget.html");
                    content = content.Replace("{{{content}}}", @"<b style='color:red'>Over Target!</b><br/>Dear Owner, <br/>Please add your comment and action plan because you did not achieve KPI target as over list:" + "<br/>" +
                                              @"<b style='color:red'>未達到目標!</b><br/>親愛的資料執行者, <br/>請加上您的意見以及行動方案因為以下的KPI項目未達到目標:");
                    var html = string.Empty;

                    foreach (var item in model.ListDatasOverTarget)
                    {
                        var area = _levelService.GetNode(item.KPILevelCode);
                        if (item.Week > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{week}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{week}}", "Week " + item.Week.ToSafetyString());
                        }
                        if (item.Month > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>                            
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{month}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{month}}", "Month " + item.Month.ToSafetyString());
                        }
                        if (item.Half > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{quarter}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{half}}", "HalfYear " + item.Half.ToSafetyString());
                        }
                        if (item.Quarter > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{quarter}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{quarter}}", "Quarter " + item.Quarter.ToSafetyString());
                        }

                        if (item.Year > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{year}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{year}}", "Year " + item.Year.ToSafetyString());
                        }
                    }

                    content = content.Replace("{{{html-template}}}", html).Replace("{{{href}}}", url);
                    Thread thread = new Thread(async() =>
                    {
                        await _mailHelper.SendEmailRangeAsync(model.ListSendMail, "[KPI System] Over Target (未達到目標)", content);
                    });
                    thread.Start();

                    //signalR
                    return(Ok(model.Status));
                }

                if (model.ListDatasBelowTarget.Count > 0)
                {
                    string content = System.IO.File.ReadAllText("./wwwroot/Templates/BelowTarget.html");
                    content = content.Replace("{{{content}}}", @"<b style='color:red'>Below Target!</b><br/>Dear Owner, <br/>Please add your comment and action plan because you did not achieve KPI target as below list:" + "<br/>" +
                                              @"<b style='color:red'>未達到目標!</b><br/>親愛的資料執行者, <br/>請加上您的意見以及行動方案因為以下的KPI項目未達到目標:");
                    var html = string.Empty;

                    foreach (var item in model.ListDatasBelowTarget)
                    {
                        var area = _levelService.GetNode(item.KPILevelCode);
                        if (item.Week > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{week}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{week}}", "Week " + item.Week.ToSafetyString());
                        }
                        if (item.Month > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>                            
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{month}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{month}}", "Month " + item.Month.ToSafetyString());
                        }
                        if (item.Half > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{quarter}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{half}}", "HalfYear " + item.Half.ToSafetyString());
                        }
                        if (item.Quarter > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{quarter}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{quarter}}", "Quarter " + item.Quarter.ToSafetyString());
                        }

                        if (item.Year > 0)
                        {
                            html += @"<tr>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{area}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{code}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{kpiname}}</td>
                            <td valign='top' style='padding:5px; font-family: Arial,sans-serif; font-size: 16px; line-height:20px;'>{{year}}</td>
                             </tr>"
                                    .Replace("{{area}}", area)
                                    .Replace("{{code}}", item.KPILevelCode)
                                    .Replace("{{kpiname}}", item.KPIName)
                                    .Replace("{{year}}", "Year " + item.Year.ToSafetyString());
                        }
                    }

                    content = content.Replace("{{{html-template}}}", html).Replace("{{{href}}}", url);
                    Thread thread = new Thread(async() =>
                    {
                        await _mailHelper.SendEmailRangeAsync(model.ListSendMail, "[KPI System] Below Target (未達到目標)", content);
                    });
                    thread.Start();

                    //signalR
                    return(Ok(model.Status));
                }

                return(Ok(model.Status));
            }
            return(Ok(false));
        }