public async Task <string> Handle(GetResizedFileByIdQuery request, CancellationToken cancellationToken)
{
var criteria = new ImageResizeCriteria(request.ImageId, request.Query);
var criteriaValidator = new ImageResizeCriteriaValidator(_configuration);
Guard.AgainstInvalidArgumentWithMessage("Invalid criteria", criteriaValidator.ValidCriteria(criteria));
(int?width, int?height)widthHeightPair = criteriaValidator.GetCriteria(criteria);
var fileDtos = await _fileReadRepository.GetAllImageOfIdAsync(request.ImageId, widthHeightPair.width, widthHeightPair.height);
Guard.AgainstNullOrNotAny(Constants.File, fileDtos);
BaseFileDto fileFound;
fileFound = fileDtos.FirstOrDefault(file => (widthHeightPair.width == null || file.Width == widthHeightPair.width) &&
(widthHeightPair.height == null || file.Height == widthHeightPair.height) && !criteria.Empty);
if (fileFound != null)
{
return(fileFound.FilePath);
}
BaseFileDto originalFile = fileDtos.FirstOrDefault(file => file.Id == criteria.ImageId);
Guard.AgainstNull(Constants.OriginalFile, originalFile);
bool shoudResize = _imageService.ShouldResize(((int)originalFile.Width, (int)originalFile.Height), widthHeightPair);
if (criteria.Empty || !shoudResize)
{
fileFound = originalFile;
}
return(fileFound?.FilePath);
}
public async Task <bool> Handle(ResizeImageCommand request, CancellationToken cancellationToken)
{
var criteria = new ImageResizeCriteria(request.ImageId, request.Query);
var criteriaValidator = new ImageResizeCriteriaValidator(_configuration);
Guard.AgainstInvalidArgumentWithMessage("Invalid criteria", criteriaValidator.ValidCriteria(criteria));
(int?width, int?height)widthHeightPair = criteriaValidator.GetCriteria(criteria);
var files = _fileRepository.GetFiles(criteria.ImageId, widthHeightPair.width, widthHeightPair.height);
Guard.AgainstNullOrNotAny("Files", files);
var originalImage = files.FirstOrDefault(file => file.Id == request.ImageId);
Guard.AgainstNull("OriginalFile", originalImage);
//if request has no param -> ask for original image -> return directly to original image
if (criteria.Empty)
{
return(true);
}
//resized image is always the first one in the list
var fileResized = files.OrderByDescending(file => file.OriginalId)
.FirstOrDefault();
bool canResize = _imageService.CanResize(widthHeightPair, (fileResized.Width, fileResized.Height));
Guard.AgainstInvalidOperationWithMessage("Cannot Resize this picture with given resolution", canResize);
bool shouldResize = _imageService.ShouldResize(((int)originalImage.Width, (int)originalImage.Height), widthHeightPair);
if (!shouldResize)
{
return(true);
}
//file not exist
if (fileResized.OriginalId == null)
{
if ((widthHeightPair.width == null || fileResized.Width == widthHeightPair.width) &&
(widthHeightPair.height == null || fileResized.Height == widthHeightPair.height))
{
return(true);
}
using (var imageData = _imageService.ReadImage(fileResized.FilePath))
{
var oldFileName = Path.GetFileName(fileResized.FilePath);
string fileExtension = Path.GetExtension(fileResized.FilePath);
var imagePath = Path.GetDirectoryName(fileResized.FilePath);
var newFileName = string.Concat(Path.GetFileNameWithoutExtension(oldFileName),
widthHeightPair.width == null ? "" : $"_w{widthHeightPair.width}",
widthHeightPair.height == null ? "" : $"_h{widthHeightPair.height}",
fileExtension);
string cloudPath = PathHelper.CombineUrl(imagePath.Replace(_configuration.RootDataFolder, _configuration.CloudDataUrl), string.Empty);
using (FileStream outputStream = new FileStream(Path.Combine(imagePath, newFileName), FileMode.CreateNew))
{
(int?width, int?height)sizeAfterResized = await _imageService.ResizeImage(imageData, (widthHeightPair.width, widthHeightPair.height), fileExtension, outputStream);
var filebuilder = new FileBuilder();
var newFile = filebuilder.BuildCloudUrl(cloudPath, newFileName)
.BuildFilePath(imagePath, newFileName)
.BuildFileInfo(new BlueprintFile
{
CreatedDate = DateTime.UtcNow,
CreatedBy = nameof(System),
FileType = fileResized.FileType,
Height = sizeAfterResized.height,
Width = sizeAfterResized.width,
OriginalFileName = newFileName,
Source = fileResized.Source,
OriginalId = fileResized.Id,
Extension = fileResized.Extension,
CompanyId = fileResized.CompanyId
})
.Build();
await _fileRepository.AddAsync(newFile);
await _fileRepository.CommitAsync();
return(true);
}
}
}
return(true);
}
