/**
         * ak klient ma stale platny program cviceni, nastavi sa mu cviciaci tyzden
         */
        $todayDatetime = \Nette\Utils\DateTime::from('now');
        $mainDatetime = \Nette\Utils\DateTime::from($lastQuestionnaire->created);

        if ($todayDatetime === $mainDatetime) {
            $currentExcerciseWeek = 1;

        } else {
            $currentExcerciseWeek = $todayDatetime->diff($mainDatetime, TRUE);
            $currentExcerciseWeek = $currentExcerciseWeek->format('%a');
            $currentExcerciseWeek = ceil($currentExcerciseWeek / 7);
            $currentExcerciseWeek = intval($currentExcerciseWeek);
        }

        if ($currentExcerciseWeek === 0) {
            $currentExcerciseWeek = 1;
        }

        /**
         * ak ma klient viac dotaznikov,
         * zapocita sa mu do aktualneho tyzdna dlzka z minulych programov
         */
        $previosProgramLength = 0;

        if (count($questionnaires) > 1) {
            for ($i = 1; $i < count($questionnaires); $i++) {
                //v tyzdnoch
                $previosProgramLength = $questionnaires[$i]->product->excerciseDuration * 4;

                $currentExcerciseWeek += $previosProgramLength;
            }
        }


        if (!empty($client->excercisePauseDuration)) {
            $currentExcerciseWeek = $currentExcerciseWeek - floor($client->excercisePauseDuration / 7);
        }