public Model.Data.Json.Image Copy(DiaryImage source)
{
var destination = new Model.Data.Json.Image()
{
Description = source.Description,
Source = source.Path
};
return(destination);
}
protected async Task <DiaryImage> AddImageWithoutSaving(byte[] image, string imageName, int?newBiggestDimensionSize = null)
{
if (string.IsNullOrWhiteSpace(imageName))
{
throw new ArgumentException("Image Name should not be empty");
}
_ = image ?? throw new ArgumentNullException(nameof(image));
int imageQuality = await _appSettings.GetAppSettingInt(AppSettingsKey.ImageQuality) ?? throw new Exception("Setting Value ImageQuality not set");
int thumbnailSize = await _appSettings.GetAppSettingInt(AppSettingsKey.ThumbnailSize) ?? throw new Exception("Setting Value ThumbnailSize not set");
var(taken, cameraModel) = GetMetadataFromPhoto(image);
var(width, height) = GetImageSize(image);
if (newBiggestDimensionSize is not null)
{
if (width > newBiggestDimensionSize || height > newBiggestDimensionSize)
{
image = ScaleImage(image, imageQuality, newBiggestDimensionSize.Value);
(width, height) = GetImageSize(image);
}
}
var dImage = new DiaryImage
{
Id = Guid.NewGuid(),
Name = imageName,
CreateDate = DateTime.UtcNow,
ModifyDate = DateTime.UtcNow,
SizeByte = image.Length,
Thumbnail = ScaleImage(image, imageQuality, thumbnailSize),
Taken = taken,
CameraModel = cameraModel,
Height = height,
Width = width,
FullImage = new DiaryImageFull
{
Data = image
}
};
await _context.Images.AddAsync(dImage).ConfigureAwait(false);
return(dImage);
}
public static TempImage CropImage(DiaryImage image, byte[] fullImage, int left, int top, int width, int height, int imageQuality)
{
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
var result = CropImage(fullImage, left, top, width, height, imageQuality);
var temp = new TempImage
{
SourceImageId = image.Id,
Modification = "Обрезка изображения",
Data = result,
SizeByte = result.Length
};
(temp.Width, temp.Height) = GetImageSize(result);
return(temp);
}
public static TempImage ScaleImage(DiaryImage image, byte[] fullImage, int maxSizePx, int imageQuality)
{
if (image == null)
{
throw new ArgumentNullException(nameof(image));
}
var result = ScaleImage(fullImage, imageQuality, maxSizePx);
var temp = new TempImage
{
SourceImageId = image.Id,
Modification = "Сжатие изображения",
Data = result,
SizeByte = result.Length
};
(temp.Width, temp.Height) = GetImageSize(result);
return(temp);
}
public async Task <IActionResult> UploadAndPost([FromForm] DiaryEntry diaryEntry)
{
if (!MultipartRequestHelper.IsMultipartContentType(Request.ContentType))
{
return(BadRequest($"Expected a multipart request, but got {Request.ContentType}"));
}
else
{
try
{
// A diaryEntry could have multiple files or None.
// We have to store the URI of each file in the DiaryImage table with its , associated with a eventID.
// Save the event ID in a variable.
// Create a diary log and upload the details.
// Make the Story URI
/* if (not zero files)
* there is files
* go through each file
* upload the file to a blob and get the URI
* Put the URI along with the width/height in a new diary image instance with the eventID created
* Save changes
*/
// CloudBlockBlob uploadedTextBlob = await UploadTextToBlob(diaryEntry.Story);
int eventID;
// Successfully uploaded Blob and identifier is found
DiaryLog diaryLogInstance = new DiaryLog
{
UserId = diaryEntry.UserID,
EventName = diaryEntry.Event,
StoryUrl = diaryEntry.Story,
StartTime = diaryEntry.StartTime,
EndTime = diaryEntry.EndTime
};
_context.DiaryLog.Add(diaryLogInstance);
await _context.SaveChangesAsync();
eventID = diaryLogInstance.Id;
// if 0 images, nothing will be attempted to upload
if (diaryEntry.Images != null && diaryEntry.Images.Any())
{
foreach (IFormFile imageInstance in diaryEntry.Images)
{
// Read images as a stream of data so it can be uploaded to blob
using (System.IO.Stream stream = imageInstance.OpenReadStream())
{
// Create and upload a blob for the image.
CloudBlockBlob uploadedImageBlob = await UploadImageToBlob(imageInstance.FileName, null, stream);
string uploadedImageBlobURI = uploadedImageBlob.StorageUri.ToString();
if (!string.IsNullOrEmpty(uploadedImageBlobURI))
{
System.Drawing.Image uploadedImage = System.Drawing.Image.FromStream(stream);
// If there is a valid URI, then upload
DiaryImage diaryImageInstance = new DiaryImage
{
// Problem : This is trying to upload before primary key eventId is made
EntryId = eventID,
ImageURL = uploadedImageBlob.SnapshotQualifiedUri.AbsoluteUri,
Height = uploadedImage.Height.ToString(),
Width = uploadedImage.Width.ToString()
};
// Add this new instance to the dbset (collection of entities) in memory
_context.DiaryImage.Add(diaryImageInstance);
}
}
}
}
// Save all the changes to the database
await _context.SaveChangesAsync();
return(Ok($"The file {diaryEntry.Event} has been succesfully uploaded"));
#region
/*
* using (System.IO.Stream stream = diaryEntry.Image.OpenReadStream())
* {
* // create and upload Blob for Image and Story
* CloudBlockBlob uploadedImageBlob = await UploadImageToBlob(diaryEntry.Image.FileName, null, stream);
* CloudBlockBlob uploadedTextBlob = await UploadTextToBlob(diaryEntry.Story);
*
* // The URI is an identifier for the blob. Its a more general version of a url.
* string uploadedImageBlobURI = uploadedImageBlob.StorageUri.ToString();
* string uploadedTextBlobURI = uploadedTextBlob.StorageUri.ToString();
*
* // If the URI is empty (there is no identifier for the blob), then something went wrong
* if (string.IsNullOrEmpty(uploadedImageBlobURI) || string.IsNullOrEmpty(uploadedTextBlobURI))
* {
* return BadRequest("Error when uploading: Identifier not found. Please Try Again");
* }
* else
* {
* // Can now begin uploading data to database
*
* System.Drawing.Image image = System.Drawing.Image.FromStream(stream);
*
* // Create an instance of a Diary Log
* DiaryLog diaryLog = new DiaryLog
* {
* EventName = diaryEntry.Event,
* StoryUrl = uploadedTextBlob.SnapshotQualifiedUri.AbsoluteUri, // Get the URI for the text blob
* StartTime = diaryEntry.StartTime,
* EndTime = diaryEntry.EndTime,
* ImageUrl = uploadedImageBlob.SnapshotQualifiedUri.AbsoluteUri, // Get the URI for the image blob
* Height = image.Height.ToString(),
* Width = image.Width.ToString()
* };
*
* // Adding the files to the database
* _context.DiaryLog.Add(diaryLog);
* await _context.SaveChangesAsync();
*
* return Ok($"File: {diaryEntry.Event} has been successfully uploaded to the database");
* }
* }
*/
#endregion
}
catch (Exception e)
{
return(BadRequest($"An error has occured g: {e.Message}"));
}
}
}
