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path: root/lib/modules/IliasInterfaceModule.php
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<?php
/**
 * Ilias Interface - navigation and meta data
 *
 * @author    André Noack <noack@data-quest.de>
 * @copyright 2019 Stud.IP Core-Group
 * @license   GPL version 2 or any later version
 * @since     4.3
 */

class IliasInterfaceModule extends CorePlugin implements StudipModule, SystemPlugin
{
    public function __construct()
    {
        parent::__construct();
        if (Config::get()->ILIAS_INTERFACE_ENABLE) {
            $ilias_interface_config = Config::get()->ILIAS_INTERFACE_BASIC_SETTINGS;
            if (Seminar_Perm::get()->have_perm('root')) {
                Navigation::addItem('/admin/config/ilias_interface',
                    new Navigation(_('ILIAS-Schnittstelle'), 'dispatch.php/admin/ilias_interface'));
            }
            if (Seminar_Perm::get()->have_perm('tutor') || Seminar_Perm::get()->have_perm('autor')) {
                $ilias = new Navigation(_('ILIAS'), 'dispatch.php/my_ilias_accounts/my_courses');
                $ilias->setImage(Icon::create('ilias'));
                $ilias->setDescription(_('Schnittstelle zu ILIAS'));
                $ilias->addSubNavigation(
                    'my_courses',
                    new Navigation(_('Meine Kurse'), 'dispatch.php/my_ilias_accounts/my_courses')
                );
                if (!empty($ilias_interface_config['show_tools_page'])) {
                    $ilias->addSubNavigation(
                        'my_accounts',
                        new Navigation(_('Meine Lernobjekte und Accounts'), 'dispatch.php/my_ilias_accounts')
                    );
                }
                Navigation::addItem('/contents/my_ilias_accounts', $ilias);
            }
        }
    }

    public function isActivatableForContext(Range $context)
    {
        return Config::get()->ILIAS_INTERFACE_ENABLE && $context->getRangeType() === 'course';
    }

    public function getInfoTemplate($course_id)
    {
        return null;
    }

    public function getIconNavigation($course_id, $last_visit, $user_id)
    {
        if (!Config::get()->ILIAS_INTERFACE_ENABLE) {
            return;
        }

        $sql = "SELECT COUNT(IF(a.module_type != 'crs', module_id, NULL)) AS count_modules,
                       COUNT(IF(a.module_type = 'crs', module_id, NULL)) AS count_courses,
                       COUNT(IF((chdate > IFNULL(b.visitdate, :threshold) AND a.module_type != 'crs'), module_id, NULL)) AS neue
                FROM object_contentmodules AS a
                LEFT JOIN object_user_visits AS b
                  ON b.object_id = a.object_id
                     AND b.user_id = :user_id
                     AND b.plugin_id = :plugin_id
                WHERE a.object_id = :course_id
                GROUP BY a.object_id";

        $statement = DBManager::get()->prepare($sql);
        $statement->bindValue(':user_id', $user_id);
        $statement->bindValue(':course_id', $course_id);
        $statement->bindValue(':threshold', $last_visit);
        $statement->bindValue(':plugin_id', $this->getPluginId());
        $statement->execute();
        $result = $statement->fetch(PDO::FETCH_ASSOC);

        if (!$result) {
            return null;
        }

        $title = CourseConfig::get($course_id)->getValue('ILIAS_INTERFACE_MODULETITLE');
        $nav = new Navigation($title, 'dispatch.php/course/ilias_interface/index');
        if ($result['neue']) {
            $nav->setImage(Icon::create('learnmodule', Icon::ROLE_ATTENTION));
            $nav->setLinkAttributes([
                'title' => sprintf(
                    ngettext(
                        '%1$d Lernobjekt, %2$d neues',
                        '%1$d Lernobjekte, %2$d neue',
                        $result['count_modules']
                    ),
                    $result['count_modules'],
                    $result['neue']
                )
            ]);
        } elseif ($result['count_modules']) {
            $nav->setImage(Icon::create('learnmodule'));
            $nav->setLinkAttributes([
                'title' => sprintf(
                    ngettext(
                        '%d Lernobjekt',
                        '%d Lernobjekte',
                        $result['count_modules']
                    ),
                    $result['count_modules']
                )
            ]);
        } elseif ($result['count_courses']) {
            $nav->setImage(Icon::create('learnmodule'));
            $nav->setLinkAttributes([
                'title' => sprintf(
                    ngettext(
                        '%d ILIAS-Kurs',
                        '%d ILIAS-Kurse',
                        $result['count_courses']
                    ),
                    $result['count_courses']
                )
            ]);
        }
        return $nav;
    }

    public function getTabNavigation($course_id)
    {
        if (!Config::get()->ILIAS_INTERFACE_ENABLE) {
            return null;
        }
        $ilias_interface_config = Config::get()->ILIAS_INTERFACE_BASIC_SETTINGS;
        if (count($ilias_interface_config) === 0) {
            return null;
        }

        $moduletitle = Config::get()->ILIAS_INTERFACE_MODULETITLE;
        if ($ilias_interface_config['edit_moduletitle']) {
            $moduletitle = CourseConfig::get($course_id)->ILIAS_INTERFACE_MODULETITLE;
        }

        $navigation = new Navigation($moduletitle);
        $navigation->setImage(Icon::create('learnmodule', Icon::ROLE_INFO_ALT));
        $navigation->setActiveImage(Icon::create('learnmodule', Icon::ROLE_INFO));
        if ($GLOBALS['perm']->have_studip_perm('tutor', $course_id) || ($GLOBALS['perm']->have_studip_perm('autor', $course_id) && IliasObjectConnections::isCourseConnected($course_id))) {
            if (get_object_type($course_id, ['inst'])) {
                if ($ilias_interface_config['create_objects']) {
                    $navigation->addSubNavigation('view', new Navigation(_('Lernobjekte dieser Einrichtung'), 'dispatch.php/course/ilias_interface/index/' . $course_id));
                } else {
                    $navigation->addSubNavigation('view', new Navigation(_('ILIAS-Kurs zu dieser Einrichtung'), 'dispatch.php/course/ilias_interface/index/' . $course_id));
                }
            } else {
                if ($ilias_interface_config['create_objects']) {
                    $navigation->addSubNavigation('view', new Navigation(_('Lernobjekte dieser Veranstaltung'), 'dispatch.php/course/ilias_interface/index/' . $course_id));
                } else {
                    $navigation->addSubNavigation('view', new Navigation(_('ILIAS-Kurs zu dieser Veranstaltung'), 'dispatch.php/course/ilias_interface/index/' . $course_id));
                }
            }
        }

        return ['ilias_interface' => $navigation];
    }

    /**
     * @see StudipModule::getMetadata()
     */
    public function getMetadata()
    {
        return [
            'summary'          => _('Zugang zu extern erstellten ILIAS-Lernobjekten'),
            'description'      => _('Über diese Schnittstelle ist es möglich, Lernobjekte aus ' .
                'einer ILIAS-Installation (ILIAS-Version >= 5.3.8) in Stud.IP zur Verfügung ' .
                'zu stellen. Lehrende haben die Möglichkeit, in ' .
                'ILIAS Selbstlerneinheiten zu erstellen und in Stud.IP bereit zu stellen.'),
            'displayname'      => _('ILIAS-Schnittstelle'),
            'category'         => _('Inhalte und Aufgabenstellungen'),
            'keywords'         => _('Einbindung von ILIAS-Lernobjekten;
                            Zugang zu ILIAS;
                            Aufgaben- und Test-Erstellung'),
            'icon'             => Icon::create('learnmodule', Icon::ROLE_INFO),
            'icon_clickable' => Icon::create('learnmodule'),
            'descriptionshort' => _('Zugang zu extern erstellten ILIAS-Lernobjekten'),
            'descriptionlong'  => _('Über diese Schnittstelle ist es möglich, Lernobjekte aus ' .
                'einer ILIAS-Installation (> 5.3.8) in Stud.IP zur Verfügung ' .
                'zu stellen. Lehrende haben die Möglichkeit, in ' .
                'ILIAS Selbstlerneinheiten zu erstellen und in Stud.IP bereit zu stellen.'),
        ];
    }
}