class.ilAddAnswerFormBuilder.php

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<?php

use ILIAS\UI\Factory as UIFactory;
use ILIAS\Refinery\Factory as RefineryFactory;
use ILIAS\UI\Implementation\Component\Input\Container\Form\Standard as StandardForm;
use Psr\Http\Message\RequestInterface;

class ilAddAnswerFormBuilder
{
    protected UIFactory $ui_factory;
    protected RefineryFactory$refinery;
    protected ilLanguage $language;
    protected string $form_action;


    public function __construct(ilTestCorrectionsGUI $parent_object, UIFactory $ui_factory, RefineryFactory $refinery, ilLanguage $language, ilCtrl $ctrl)
    {
        $this->ui_factory = $ui_factory;
        $this->refinery = $refinery;
        $this->language = $language;

        $this->form_action = $ctrl->getFormAction(
            $parent_object,
            'addAnswer'
        );
    }

    public function buildAddAnswerForm(array $data = []): StandardForm
    {
        $inputs = $this->buildInputs($data);

        return $this->ui_factory->input()->container()->form()->standard($this->form_action, $inputs);
    }

    protected function buildInputs(array $data): array
    {
        $to_int_trafo = $this->refinery->kindlyTo()->int();
        $fix_points_trafo = $this->refinery->custom()->transformation(
            function ($v) {
                $v = str_replace(',', '.', $v);

                if (is_numeric($v)) {
                    return (float) $v;
                }

                return false;
            }
        );

        $inputs = [];
        $inputs['question_id'] = $this->ui_factory->input()->field()->hidden()
            ->withAdditionalTransformation($to_int_trafo)
            ->withValue((string) ($data['question_id'] ?? ''));
        $inputs['question_index'] = $this->ui_factory->input()->field()->hidden()
            ->withAdditionalTransformation($to_int_trafo)
            ->withValue((string) ($data['question_index'] ?? ''));
        $inputs['answer_value'] = $this->ui_factory->input()->field()->hidden($this->language->txt('answer'))
            ->withValue(($data['answer'] ?? ''));
        $inputs['answer'] = $this->ui_factory->input()->field()->text($this->language->txt('answer'))
            ->withValue(($data['answer'] ?? ''))
            ->withDisabled(true);
        $inputs['points'] = $this->ui_factory->input()->field()->text($this->language->txt('points'))
            ->withAdditionalTransformation($fix_points_trafo);
        return $inputs;
    }
}