quiz resetc

internal/service/quiz_service.go

@@ -269,6 +269,16 @@ func (s *QuizService) ParticipantResult(ctx context.Context, quizID, userID stri
 	return s.quizzes.Result(ctx, quizID, userID, true)
 }
 
+// ResetParticipant wipes one participant's attempt; the quiz becomes pending
+// for them. Works on unpublished quizzes too — staff may tidy results up
+// while a quiz is offline.
+func (s *QuizService) ResetParticipant(ctx context.Context, quizID, userID string) error {
+	if _, err := s.quizzes.Get(ctx, quizID, false); err != nil {
+		return err
+	}
+	return s.quizzes.ResetAttempt(ctx, quizID, userID)
+}
+
 // ── Taking ────────────────────────────────────────────────────────────────
 
 // published loads a quiz that users may see.