public async Task <FileContentResult> GenerateExcel(BlankFile param, long userId, IImageHandler imageHandler = null)
{
if (!param.Validate())
{
throw new ArgumentException();
}
var blankType = await _blankTypeRepository.Get()
.FirstOrDefaultAsync(bt => bt.Name.Equals(param.Type, StringComparison.OrdinalIgnoreCase));
if (blankType == null)
{
throw new InvalidOperationException();
}
var questions = _questionRepository.Get().Where(q => q.BlankTypeId == blankType.Id).Select(q => q.Question);
_imageHandler = imageHandler ?? ImageHandlerFactory.GetImageHanlderByType(blankType.Type);
var file = await _imageHandler.GenerateExcel(param, questions)
?? throw new InvalidOperationException();
var user = await _userRepository.GetAsync(userId);
file = await _blankFileRepository.AddAsync(file);
user.BlankFileUsers.Add(new BlankFileUser
{
BlankFile = file,
BlankFileId = file.Id,
User = user,
UserId = user.Id
});
await _userRepository.EditAsync(user);
return(new FileContentResult(Convert.FromBase64String(file.Data), file.FileType)
{
FileDownloadName = file.Name
});
}
public Task <BlankFile> GenerateExcel(BlankFile param, IEnumerable <string> questions)
{
try
{
Questions = questions?.ToArray();
var pathToSave = Path.Combine(
Directory.GetCurrentDirectory(),
"wwwroot",
DateTime.Now.Subtract(DateTime.MinValue).TotalSeconds.ToString(CultureInfo.CurrentCulture));
_savedImageName = pathToSave + param.Name;
SavedBlackWhiteImageName = pathToSave + param.Name + "_bw";
_excelFileName = DateTime.Now.ToString("dd-MM-yyyy-HH-mm-ss_") + param.Type.Replace(" ", "") + ".xlsx";
_excelFilePath = pathToSave + _excelFileName;
_recognizedBlankType = param.Type;
_blankFile = param;
SaveImage(_blankFile.Data, _savedImageName);
SaveGrayScaleImage();
SearchAnswers();
var result = Task.FromResult(CreateExcel());
return(result);
}
finally
{
RemoveFiles();
GC.Collect();
}
}
public async Task <FileContentResult> GenerateExcel([FromBody] BlankFile param)
{
return(await _userService.GenerateExcel(param, User.GetUserId()));
}
