/**
  * Encodes a QuestionModel and related data for $questionId
  * @param string $projectId
  * @param string $questionId
  * @param string $userId
  * @return array - The DTO.
  * @throws ResourceNotAvailableException
  */
 public static function encode($projectId, $questionId, $userId)
 {
     $user = new UserModel($userId);
     $project = new SfchecksProjectModel($projectId);
     $question = new QuestionModel($project, $questionId);
     $textId = $question->textRef->asString();
     $text = new TextModel($project, $textId);
     if (($text->isArchived || $question->isArchived) && $project->users[$userId]->role != ProjectRoles::MANAGER) {
         throw new ResourceNotAvailableException("This Question is no longer available. If this is incorrect contact your project manager.");
     }
     $usxHelper = new UsxHelper($text->content);
     //echo $usxHelper->toHtml();
     //echo $text->content;
     $votes = new UserVoteModel($userId, $projectId, $questionId);
     $votesDto = array();
     foreach ($votes->votes as $vote) {
         $votesDto[$vote->answerRef->id] = true;
     }
     $unreadAnswerModel = new UnreadAnswerModel($userId, $project->id->asString(), $questionId);
     $unreadAnswers = $unreadAnswerModel->unreadItems();
     $unreadAnswerModel->markAllRead();
     $unreadAnswerModel->write();
     $unreadCommentModel = new UnreadCommentModel($userId, $project->id->asString(), $questionId);
     $unreadComments = $unreadCommentModel->unreadItems();
     $unreadCommentModel->markAllRead();
     $unreadCommentModel->write();
     $unreadActivityModel = new UnreadActivityModel($userId, $projectId);
     $unreadActivity = $unreadActivityModel->unreadItems();
     $dto = array();
     $dto['question'] = QuestionCommentDtoEncoder::encode($question);
     $dto['votes'] = $votesDto;
     $dto['text'] = JsonEncoder::encode($text);
     $dto['text']['content'] = $usxHelper->toHtml();
     $dto['project'] = JsonEncoder::encode($project);
     $dto['project']['slug'] = $project->databaseName();
     $dto['rights'] = RightsHelper::encode($user, $project);
     $dto['unreadAnswers'] = $unreadAnswers;
     $dto['unreadComments'] = $unreadComments;
     $dto['unreadActivityCount'] = count($unreadActivity);
     return $dto;
 }