private async Task <FileData> GetFileData(IDbConnection connection, IGuidGenerator guidGenerator,
FileRepository fileRepository, string md5HashString,
byte[] fileBytes, string fileName, string fileExtension)
{
if (!await fileRepository.HasFileWithSameHashAsync(connection, md5HashString))
{
var fileId = guidGenerator.GenerateGuid();
return(new FileData(fileId, true, ImageFormatDetector.GetImageFormat(fileBytes) != ImageFormat.Unknown,
fileBytes, md5HashString, fileBytes.LongLength, fileName, fileExtension));
}
var fileDataFromStore = await fileRepository.GetFileByMd5HashAsync(connection, md5HashString);
return(new FileData(fileDataFromStore.FileId, false,
ImageFormatDetector.GetImageFormat(fileDataFromStore.Binary) != ImageFormat.Unknown,
fileDataFromStore.Binary, fileDataFromStore.Md5Hash, fileDataFromStore.Size, fileDataFromStore.Name,
fileDataFromStore.Extension));
}