public IActionResult CreateComment(int cardId, [FromBody] CommentForCreationDto comment)
        {
            if (comment == null)
            {
                return(BadRequest());
            }

            if (comment.User == comment.Description)
            {
                ModelState.AddModelError("Desctiption", "The provided Description should be different from the User.");
            }

            if (!ModelState.IsValid)
            {
                return(BadRequest());
            }

            if (!_cardRepository.CardExists(cardId))
            {
                return(NotFound());
            }

            var finalComment = Mapper.Map <Comment>(comment);

            _cardRepository.AddComment(cardId, finalComment);

            if (!_cardRepository.Save())
            {
                return(StatusCode(500, "A problem happened while handling your request"));
            }

            var createCommentToReturn = Mapper.Map <CommentDto>(finalComment);

            return(CreatedAtRoute("GetComment", new { cardId = cardId, commentId = createCommentToReturn.Id }, createCommentToReturn));
        }