private async Task <bool> SendEmailReject(ApprovalHandler approvalHandler)
        {
            string ownerId = await approvalHandler.GetOwnerID();

            WebAppUser userCurrent = await _userHandler.GetUserAsync(HttpContext.User);

            WebAppUser userOwner = _userHandler.Users.Where(x => x.Id == ownerId).FirstOrDefault();
            MtdForm    mtdForm   = await approvalHandler.GetFormAsync();

            string storeId = await approvalHandler.GetStoreID();

            MtdApprovalStage stagePrev = await approvalHandler.GetPrevStage();

            MtdApprovalStage stageFirst = await approvalHandler.GetFirstStageAsync();

            if (stagePrev != null && stagePrev.Id != stageFirst.Id)
            {
                WebAppUser userNext   = _userHandler.Users.Where(x => x.Id == stagePrev.UserId).FirstOrDefault();
                BlankEmail blankEmail = new BlankEmail
                {
                    Subject = _localizer["Approval event"],
                    Email   = userNext.Email,
                    Header  = _localizer["Approval required"],
                    Content = new List <string> {
                        $"<strong>{_localizer["Document"]} - {mtdForm.Name}</strong>",
                        $"{_localizer["User"]} {userCurrent.Title} {_localizer["rejected the document at"]} {DateTime.Now}",
                        $"{_localizer["Click on the link to view the document that required to approve."]}",
                        $"<a href='http://{HttpContext.Request.Host}/workplace/store/details?id={storeId}'>{_localizer["Document link"]}</a>"
                    }
                };


                await _emailSender.SendEmailBlankAsync(blankEmail);
            }

            BlankEmail blankOwner = new BlankEmail
            {
                Subject = _localizer["Approval event"],
                Email   = userOwner.Email,
                Header  = _localizer["Approval process event"],
                Content = new List <string> {
                    $"<strong>{_localizer["Document"]} - {mtdForm.Name}</strong>",
                    $"{_localizer["User"]} {userCurrent.Title} {_localizer["rejected the document at"]} {DateTime.Now}",
                    $"{_localizer["Click on the link to view the document."]}",
                    $"<a href='http://{HttpContext.Request.Host}/workplace/store/details?id={storeId}'>{_localizer["Document link"]}</a>"
                }
            };

            await _emailSender.SendEmailBlankAsync(blankOwner);

            return(true);
        }