public async Task <Result> Handle(GenerateDeliveryBatchFormsCommand request, CancellationToken token)
{
var deliveryBatch = await _context.DeliveryBatches.SingleOrDefaultAsync(d => d.Id == request.DeliveryBatchId, token);
if (deliveryBatch == null)
{
return(Result.Failure($"DeliveryBatch {request.DeliveryBatchId} was not found."));
}
var outputDocument = new PdfDocument();
Result <byte[]> blobResult = null;
foreach (var delivery in deliveryBatch.Deliveries)
{
blobResult = await _blobService.DownloadDeliveryAsync(delivery.DeliveryFormUrl, token);
if (!blobResult.Succeeded)
{
break;
}
using (var stream = new MemoryStream(blobResult.Data))
{
var inputDocument = PdfReader.Open(stream, PdfDocumentOpenMode.Import);
for (var idx = 0; idx < inputDocument.PageCount; idx++)
{
var page = inputDocument.Pages[idx];
outputDocument.AddPage(page);
}
}
}
if (!blobResult.Succeeded)
{
return(Failure(blobResult));
}
outputDocument.Info.Subject = $"{deliveryBatch.Name} du {deliveryBatch.ScheduledOn:yyyyMMdd}";
using (var stream = new MemoryStream())
{
outputDocument.Save(stream);
var result = await _blobService.UploadProducerDeliveryBatchAsync(deliveryBatch.AssignedToId,
deliveryBatch.Id, $"{deliveryBatch.Name}_{deliveryBatch.ScheduledOn:yyyyMMdd}.pdf", stream.ToArray(), token);
if (!result.Succeeded)
{
return(Failure(result));
}
deliveryBatch.SetDeliveryFormsUrl(result.Data);
await _context.SaveChangesAsync(token);
}
return(Success());
}
