public async Task <Unit> Handle(RemoveOfferDraftCommand request, CancellationToken cancellationToken)
{
var userId = _httpContext.User.Claims.ToTokenPayload().UserClaims.Id;
var offerId = Guid.Parse(request.OfferId);
var offer = await _offerRepository.GetByIdAsync(offerId);
if (offer == null || offer.OwnerId != userId)
{
throw new NotFoundException();
}
if (!offer.IsDraft)
{
throw new OffersDomainException($"Offer {offerId} is not draft");
}
foreach (var offerImage in offer.Images)
{
await _imageStorage.DeleteAsync(offerImage.Filename);
}
_offerRepository.Remove(offer);
await _offerRepository.UnitOfWork.SaveChangesAndDispatchDomainEventsAsync(cancellationToken);
return(await Unit.Task);
}
public async Task Process(Offer offer, IList <IFormFile> images, string imagesMetadata)
{
var imagesMetadataDict = _imagesMetadataExtractor.Extract(imagesMetadata);
if (images != null)
{
var imagesIdList = images.Select(img => Path.GetFileNameWithoutExtension(img.FileName));
if (imagesIdList.Any(id => !imagesMetadataDict.ContainsKey(id)))
{
throw new OffersDomainException("Invalid images metadata");
}
}
// Delete images not present in metadata
var imagesToRemove = offer.Images.Where(x => imagesMetadataDict.ContainsKey(x.Id.ToString()) == false).ToList();
foreach (var imageToRemove in imagesToRemove)
{
await _imageStorage.DeleteAsync(imageToRemove.Filename);
}
var currentImages = offer.Images.Except(imagesToRemove).Select(x => (ImageInfo)x.Clone()).ToList();
// Process remaining offer images
foreach (var offerImage in currentImages)
{
var imageMetadata = imagesMetadataDict[offerImage.Id.ToString()];
if (!imageMetadata.IsRemote)
{
throw new OffersDomainException($"Invalid metadata entry - '{nameof(imageMetadata.IsRemote)}' should be true");
}
offerImage.SetIsMain(imageMetadata.IsMain);
offerImage.SetSortId(imageMetadata.IsMain ? 0 : imageMetadata.SortId);
imagesMetadataDict.Remove(offerImage.Id.ToString());
}
if (imagesMetadataDict.Any(x => x.Value.IsRemote))
{
throw new OffersDomainException($"Uploaded image cannot be marked as '{nameof(ImageMetadata.IsRemote)}'");
}
// Upload new images from request
if (images != null)
{
foreach (var requestImageFile in images)
{
var id = Path.GetFileNameWithoutExtension(requestImageFile.FileName);
var metadata = imagesMetadataDict[id];
var uploadedImage = await _imageStorage.UploadAsync(requestImageFile);
if (uploadedImage == null)
{
throw new OffersDomainException("Image upload failed");
}
var uploadedImageInfo = uploadedImage.ToImageInfo();
uploadedImageInfo.SetIsMain(metadata.IsMain);
uploadedImageInfo.SetSortId(metadata.IsMain ? 0 : uploadedImageInfo.SortId);
currentImages.Add(uploadedImageInfo);
}
}
var mainImage = currentImages.Single(x => x.IsMain);
currentImages.Remove(mainImage);
var finalImages = new List <ImageInfo>();
foreach (var imgWithIndex in currentImages.OrderBy(x => x.SortId).WithIndex(1))
{
imgWithIndex.Item.SetSortId(imgWithIndex.Index);
finalImages.Add(imgWithIndex.Item);
}
finalImages.Insert(0, mainImage);
offer.SetImages(finalImages);
}