class.ilWOPISettingsForm.php

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<?php

declare(strict_types=1);

use ILIAS\Administration\Setting;
use ILIAS\UI\Component\Input\Container\Form\Standard;
use ILIAS\UI\Component\Input\Field\Section;
use Psr\Http\Message\RequestInterface;
use ILIAS\Services\WOPI\Discovery\Crawler;
use ILIAS\Data\URI;

class ilWOPISettingsForm
{
    private Standard $form;
    private \ILIAS\UI\Factory $ui_factory;
    private \ILIAS\UI\Renderer $ui_renderer;
    private ilCtrlInterface $ctrl;
    private ilLanguage $lng;
    private \ILIAS\Refinery\Factory $refinery;

    public function __construct(
        private Setting $settings,
    ) {
        global $DIC;
        $this->ui_factory = $DIC->ui()->factory();
        $this->ui_renderer = $DIC->ui()->renderer();
        $this->ctrl = $DIC->ctrl();
        $this->lng = $DIC->language();
        $this->refinery = $DIC->refinery();

        $this->form = $this->initForm();
    }

    private function initForm(): Standard
    {
        return $this->ui_factory->input()->container()->form()->standard(
            $this->ctrl->getFormActionByClass(ilWOPIAdministrationGUI::class, ilWOPIAdministrationGUI::CMD_STORE),
            $this->getSection()->getInputs()
        );
    }

    private function getSection(): Section
    {
        $wopi_activated = (bool) $this->settings->get("wopi_activated", '0');
        $wopi_discovery_url = $this->settings->get("wopi_discovery_url");

        $wopi_url = $this->ui_factory->input()->field()->text(
            $this->lng->txt("wopi_url"),
            $this->lng->txt("wopi_url_byline")
            /*. $this->renderLink(
                " ➜︎ Wikipedia",
                "https://en.wikipedia.org/wiki/Web_Application_Open_Platform_Interface",
                true
            )*/
        )->withAdditionalTransformation(
            $this->refinery->custom()->transformation(function ($v) {
                return $v === '' ? null : $v;
            })
        )->withAdditionalTransformation(
            $this->refinery->custom()->constraint(function ($v) {
                if ($v === null) {
                    return false;
                }
                return (new Crawler())->validate(new URI($v));
            }, $this->lng->txt('msg_error_wopi_invalid_discorvery_url'))
        )->withAdditionalTransformation(
            $this->refinery->custom()->transformation(function ($v) {
                $this->settings->set("wopi_discovery_url", $v);

                return true;
            })
        )->withValue(
            $wopi_discovery_url ?? ''
        );

        return $this->ui_factory->input()->field()->section(
            [
                $this->ui_factory->input()->field()->optionalGroup(
                    [$wopi_url],
                    $this->lng->txt("activate_wopi")
                )->withValue(
                    $wopi_discovery_url === null ? null : [$wopi_discovery_url]
                )->withAdditionalTransformation(
                    $this->refinery->custom()->transformation(function ($v) {
                        if ($v === null || $v === [null]) {
                            $this->settings->set("wopi_activated", '0');
                            $this->settings->delete("wopi_discovery_url");
                        } else {
                            $this->settings->set("wopi_activated", "1");
                        }
                        return $v;
                    })
                )
            ],
            $this->lng->txt("wopi_settings"),
        );
    }

    public function proceed(RequestInterface $request): bool
    {
        $this->form = $this->form->withRequest($request);

        return $this->form->getData() !== null;
    }

    public function getHTML(): string
    {
        return $this->ui_renderer->render($this->form);
    }

    private function renderLink(string $translation, string $url, bool $new_tab = true): string
    {
        $link = $this->ui_factory->link()->standard(
            $translation,
            $url
        )->withOpenInNewViewport($new_tab);
        return $this->ui_renderer->render($link);
    }
}