class.ilTestSequenceFactory.php

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<?php

declare(strict_types=1);

class ilTestSequenceFactory
{
    private array $test_sequences = [];

    public function __construct(
        private ilObjTest $test_obj,
        private ilDBInterface $db,
        private \ILIAS\TestQuestionPool\QuestionInfoService $questioninfo
    ) {
    }

    public function getSequenceByTestSession($testSession)
    {
        return $this->getSequenceByActiveIdAndPass($testSession->getActiveId(), $testSession->getPass());
    }

    public function getSequenceByActiveIdAndPass($activeId, $pass)
    {
        if (!isset($this->test_sequences[$activeId][$pass])) {
            if ($this->test_obj->isFixedTest()) {
                $this->test_sequences[$activeId][$pass] = new ilTestSequenceFixedQuestionSet(
                    $this->db,
                    $activeId,
                    $pass,
                    $this->questioninfo
                );
            }

            if ($this->test_obj->isRandomTest()) {
                $this->test_sequences[$activeId][$pass] = new ilTestSequenceRandomQuestionSet(
                    $this->db,
                    $activeId,
                    $pass,
                    $this->questioninfo
                );
            }
        }

        return $this->test_sequences[$activeId][$pass];
    }
}