GET question sets API fix

internal/repository/questions.go

@@ -607,6 +607,19 @@ func (s *Store) GetQuestionSetsByType(ctx context.Context, setType string, limit
 			UpdatedAt:        timePtr(r.UpdatedAt),
 		}
 	}
+
+	// COUNT(*) OVER() only appears when at least one row is returned.
+	// For out-of-range offsets, fetch total count explicitly so pagination metadata stays correct.
+	if len(rows) == 0 {
+		err = s.conn.QueryRow(
+			ctx,
+			`SELECT COUNT(*) FROM question_sets WHERE set_type = $1 AND status != 'ARCHIVED'`,
+			setType,
+		).Scan(&totalCount)
+		if err != nil {
+			return nil, 0, err
+		}
+	}
 	return result, totalCount, nil
 }
 

internal/web_server/handlers/questions.go

@@ -1120,11 +1120,64 @@ func (h *Handler) GetQuestionsInSet(c *fiber.Ctx) error {
 		})
 	}
 
-	itemResponses := questionSetItemsToRes(items)
+	questionResponses := make([]questionRes, 0, len(items))
+	for _, item := range items {
+		question, err := h.questionsSvc.GetQuestionWithDetails(c.Context(), item.QuestionID)
+		if err != nil {
+			return c.Status(fiber.StatusInternalServerError).JSON(domain.ErrorResponse{
+				Message: "Failed to get question details",
+				Error:   err.Error(),
+			})
+		}
+
+		options := make([]optionRes, 0, len(question.Options))
+		for _, opt := range question.Options {
+			options = append(options, optionRes{
+				ID:          opt.ID,
+				OptionText:  opt.OptionText,
+				OptionOrder: opt.OptionOrder,
+				IsCorrect:   opt.IsCorrect,
+			})
+		}
+
+		shortAnswers := make([]shortAnswerRes, 0, len(question.ShortAnswers))
+		for _, sa := range question.ShortAnswers {
+			shortAnswers = append(shortAnswers, shortAnswerRes{
+				ID:               sa.ID,
+				AcceptableAnswer: sa.AcceptableAnswer,
+				MatchType:        sa.MatchType,
+			})
+		}
+
+		var audioCorrectAnswerText *string
+		if question.AudioAnswer != nil {
+			audioCorrectAnswerText = &question.AudioAnswer.CorrectAnswerText
+		}
+
+		questionResponses = append(questionResponses, questionRes{
+			ID:                      question.ID,
+			QuestionText:            question.QuestionText,
+			QuestionType:            question.QuestionType,
+			DifficultyLevel:         question.DifficultyLevel,
+			Points:                  question.Points,
+			Explanation:             question.Explanation,
+			Tips:                    question.Tips,
+			VoicePrompt:             question.VoicePrompt,
+			SampleAnswerVoicePrompt: question.SampleAnswerVoicePrompt,
+			ImageURL:                question.ImageURL,
+			Status:                  question.Status,
+			CreatedAt:               question.CreatedAt.String(),
+			Options:                 options,
+			ShortAnswers:            shortAnswers,
+			AudioCorrectAnswerText:  audioCorrectAnswerText,
+		})
+	}
 
 	return c.JSON(domain.Response{
 		Message: "Questions retrieved successfully",
-		Data:    itemResponses,
+		Success: true,
+		StatusCode: fiber.StatusOK,
+		Data:    questionResponses,
 	})
 }