public IActionResult GenerateNewInvoice([FromBody] InvoiceModel model)
{
int.TryParse(HttpContext.User.Identity.Name, out int userId);
var user = _userService.GetById(userId);
var invoice = _mapper.Map <Invoice>(model);
invoice.DateOfPayment = DateTime.Now.AddDays(15);
var file = _pdfFactory.GeneratePdf(invoice, TemplateGenerator.GetSaleInvoiceTemplate(invoice, user));
return(File(file, "application/pdf", $"{invoice.Number.Replace("'/'", "_")}.pdf"));
}