public IActionResult StartTicketDownload(Vereniging vereniging, TicketsDownloadViewModel vm)
        {
            McEditie editie = _editieRepository.GetNextOrCurrentEditieIncludeTickets();

            if (editie == null)
            {
                return(NotFound("Er is nog geen opkomende editie aangemaakt, als dit volgens u niet klopt, gelieve dan contact op te nemen met [email protected]"));
            }
            string blankPDFpath;
            string ticketPath;

            try
            {
                string blankPDFname = _config.GetValue <string>("EmptyTicketName");
                ticketPath   = Path.Combine(Directory.GetCurrentDirectory(), "Tickets");
                blankPDFpath = Path.Combine(Directory.GetCurrentDirectory(), "Tickets", blankPDFname);
            }
            catch (Exception ex)
            {
                TempData["error"] = $"Oeps er ging iets mis, indien dit blijft voorkomen, stuur dan volgende tekst door naar [email protected]: {ex.Message}";
                return(RedirectToAction(nameof(Index)));
            }
            if (!editie.VerenigingHasTickets(vereniging))
            {
                TempData["error"] = "Sorry, u heeft geen tickets...";
                return(RedirectToAction(nameof(Index)));
            }

            //make newlines also possible
            string        memberNamesString = vm.MemberNames?.Replace(Environment.NewLine, ";");
            List <string> memberNames       = memberNamesString?.Split(";").ToList();

            editie.GenerateTicketsForVereniging(vereniging, blankPDFpath, ticketPath, memberNames);
            _editieRepository.SaveChanges();
            using (MemoryStream ms = new MemoryStream())
            {
                using (var archive = new ZipArchive(ms, ZipArchiveMode.Create, true))
                {
                    foreach (Ticket t in editie.GetAllTicketsOfVereniging(vereniging))
                    {
                        var    ZipArchiveEntry = archive.CreateEntry(t.TicketName, CompressionLevel.Fastest);
                        byte[] ticketBytes     = System.IO.File.ReadAllBytes(t.PdfPath);
                        using (var zipStream = ZipArchiveEntry.Open()) zipStream.Write(ticketBytes, 0, ticketBytes.Length);
                    }
                }
                Task.Run(() => editie.RemoveTicketsVereniging(vereniging, ticketPath));
                return(File(ms.ToArray(), "application/zip", "Tickets.zip"));
            }
        }