ExerciseShowFunctions::displayMultipleAnswerDropdown()

Complexity

Conditions	25
Paths	1734

Size

Total Lines	114
Code Lines	66

Duplication

Lines	0
Ratio	0 %

Importance

Changes	2
Bugs	0	Features	0

<?php
    public static function displayMultipleAnswerDropdown(
        Exercise $exercise,
        Answer $answer,
        array $correctAnswers,
        array $studentChoices,
        bool $showTotalScoreAndUserChoices = true
    ): string {
        if (true === $exercise->hideNoAnswer && empty($studentChoices)) {
            return '';
        }

        $studentChoices = array_filter(
            $studentChoices,
            function ($studentAnswerId) {
                return -1 !== (int) $studentAnswerId;
            }
        );

        $allChoices = array_unique(
            array_merge($correctAnswers, $studentChoices)
        );
        sort($allChoices);

        $checkboxOn = Display::return_icon('checkbox_on.png', null, null, ICON_SIZE_TINY);
        $checkboxOff = Display::return_icon('checkbox_off.png', null, null, ICON_SIZE_TINY);

        $labelSuccess = Display::label(get_lang('Correct'), 'success');
        $labelIncorrect = Display::label(get_lang('Incorrect'), 'danger');

        $html = '';

        foreach ($allChoices as $choice) {
            $isStudentAnswer = in_array($choice, $studentChoices);
            $isExpectedAnswer = in_array($choice, $correctAnswers);
            $isCorrectAnswer = $isStudentAnswer && $isExpectedAnswer;
            $answerPosition = array_search($choice, $answer->iid);

            $hideExpectedAnswer = false;

            switch ($exercise->selectResultsDisabled()) {
                case RESULT_DISABLE_SHOW_ONLY_IN_CORRECT_ANSWER:
                    $hideExpectedAnswer = true;

                    if (!$isCorrectAnswer && empty($studentChoices)) {
                        continue 2;
                    }
                    break;
                case RESULT_DISABLE_SHOW_SCORE_ONLY:
                    if (0 == $exercise->getFeedbackType()) {
                        $hideExpectedAnswer = true;
                    }
                    break;
                case RESULT_DISABLE_DONT_SHOW_SCORE_ONLY_IF_USER_FINISHES_ATTEMPTS_SHOW_ALWAYS_FEEDBACK:
                case RESULT_DISABLE_SHOW_SCORE_ATTEMPT_SHOW_ANSWERS_LAST_ATTEMPT:
                    $hideExpectedAnswer = true;
                    if ($showTotalScoreAndUserChoices) {
                        $hideExpectedAnswer = false;
                    }
                    break;
                case RESULT_DISABLE_SHOW_SCORE_ATTEMPT_SHOW_ANSWERS_LAST_ATTEMPT_NO_FEEDBACK:
                    if (false === $showTotalScoreAndUserChoices && empty($studentChoices)) {
                        continue 2;
                    }
                    break;
            }

            $studentAnswerClass = '';

            if ($isCorrectAnswer
                && in_array(
                    $exercise->selectResultsDisabled(),
                    [
                        RESULT_DISABLE_SHOW_ONLY_IN_CORRECT_ANSWER,
                        RESULT_DISABLE_SHOW_SCORE_AND_EXPECTED_ANSWERS_AND_RANKING,
                    ]
                )
            ) {
                $studentAnswerClass = 'success';
            }

            $html .= '<tr class="'.$studentAnswerClass.'">';
            $html .= '<td class="text-center">'.($isStudentAnswer ? $checkboxOn : $checkboxOff).'</td>';

            if ($exercise->showExpectedChoiceColumn()) {
                $html .= '<td class="text-center">';

                if ($hideExpectedAnswer) {
                    $html .= '<span class="text-muted">&mdash;</span>';
                } else {
                    $html .= $isExpectedAnswer ? $checkboxOn : $checkboxOff;
                }

                $html .= '</td>';
            }

            $answerText = $answer->answer[$answerPosition] ?? get_lang('None');

            if ($exercise->export) {
                $answerText = strip_tags_blacklist($answerText, ['title', 'head']);
                // Fix answers that contains this tags
                $tags = ['<html>', '</html>', '<body>', '</body>'];
                $answerText = str_replace($tags, '', $answerText);
            }

            $html .= '<td>'.Security::remove_XSS($answerText).'</td>';

            if ($exercise->showExpectedChoice()) {
                $html .= '<td class="text-center">'.($isCorrectAnswer ? $labelSuccess : $labelIncorrect).'</td>';
            }

            $html .= '</tr>';
        }

        return $html;
    }