/// <summary>
/// Deletes lower resolution copies of images from directory.
/// </summary>
/// <param name="imageDataCollection">List of image data from db.</param>
/// <param name="ownerId">Id of imageDataCollection owner.</param>
/// <param name="directoryPath">Directory to check.</param>
public void DeleteDuplicateImagesFromDirectoryAndDb(ICollection <ImageData> imageDataCollection, int ownerId, string directoryPath)
{
//search for duplicates in album images directory.
var imagePaths = _fileManager.GetImageSimpleFileInfosFromDirectory(directoryPath).Select(sfi => sfi.Path).ToList();
var imageComparer = new ImageSizeComparer();
var duplicateImagePaths = _imageDuplicateFinder.GetDuplicateImagePaths(imagePaths, imageComparer);
//delete lower resolution image duplicates
foreach (var duplicateImagePath in duplicateImagePaths)
{
var duplicateImageName = Path.GetFileName(duplicateImagePath);
//delete file from image directory
//TODO: Add TryDeleteFile to IFileManager
_fileManager.DeleteFile(duplicateImagePath);
//delete imageDataCollection from image data collection
var imageDataToRemove = imageDataCollection.FirstOrDefault(img => img.Name.Equals(duplicateImageName));
//skip images with no records in collection
if (imageDataToRemove == null)
{
continue;
}
//delete imageDataCollection from db and collection
DeleteImageDataFromCollectionAndDb(imageDataCollection, imageDataToRemove);
}
}
public void GetDuplicateImagePaths_ShouldReturnListOFDuplicateImagePaths()
{
var imagePathList = new List <string>()
{
_image1FilePath, _image3FilePath, _image2FilePath, _image4FilePath
};
var imageSizeComparer = new ImageSizeComparer();
var duplicates = _sut.GetDuplicateImagePaths(imagePathList, imageSizeComparer, 3, 0.1f).ToList();
Assert.That(duplicates, Has.Count.EqualTo(2));
Assert.That(duplicates, Contains.Item(_image3FilePath).And.Contains(_image4FilePath));
}