UserLanguageDefinition.php

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<?php

declare(strict_types=1);

namespace ILIAS\LegalDocuments\Condition\Definition;

use ILIAS\UI\Component\Input\Field\Radio;
use ILIAS\Refinery\Constraint;
use ILIAS\LegalDocuments\Condition;
use ILIAS\LegalDocuments\ConditionDefinition;
use ILIAS\LegalDocuments\Condition\UserLanguage;
use ILIAS\LegalDocuments\ConsumerToolbox\UI;
use ILIAS\LegalDocuments\Value\CriterionContent;
use ILIAS\UI\Component\Input\Field\Group;
use Closure;

class UserLanguageDefinition implements ConditionDefinition
{
    public function __construct(
        private readonly UI $ui,
        private readonly array $installed_languages,
        private readonly Closure $required
    ) {
    }

    public function formGroup(array $arguments = []): Group
    {
        $languages = array_combine($this->installed_languages, array_map($this->translatedLanguage(...), $this->installed_languages));
        $default = key($languages);

        return $this->ui->create()->input()->field()->group([
            'lng' => $this->radio(
                $this->ui->txt('language'),
                $languages,
                $arguments['lng'] ?? $default
            )->withRequired(true, ($this->required)($languages))
        ], $this->ui->txt('crit_type_usr_language'), $this->ui->txt('crit_type_usr_language_info'));
    }

    public function withCriterion(CriterionContent $criterion): Condition
    {
        return new UserLanguage($criterion, $this, $this->ui);
    }

    public function translatedType(): string
    {
        return $this->ui->txt('crit_type_usr_language');
    }

    public function translatedLanguage(string $language): string
    {
        return $this->ui->txt('meta_l_' . $language);
    }

    private function radio(string $lang_key, array $options, $value): Radio
    {
        $field = $this->ui->create()->input()->field()->radio($lang_key);
        foreach ($options as $key => $label) {
            $field = $field->withOption((string) $key, $label);
        }

        return $value !== null && isset($options[(string) $value]) ? $field->withValue((string) $value) : $field;
    }
}