class.ilBuddySystemLinkButton.php

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<?php

declare(strict_types=1);

class ilBuddySystemLinkButton implements ilBuddySystemLinkButtonType
{
    protected ilBuddyList $buddyList;
    protected ilLanguage $lng;
    protected ilObjUser $user;

    protected function __construct(protected int $usrId)
    {
        global $DIC;
        $this->buddyList = ilBuddyList::getInstanceByGlobalUser();

        $this->user = $DIC['ilUser'];
        $this->lng = $DIC['lng'];
    }

    public static function getInstanceByUserId(int $usrId): self
    {
        return new self($usrId);
    }

    public function getUsrId(): int
    {
        return $this->usrId;
    }

    public function getBuddyList(): ilBuddyList
    {
        return $this->buddyList;
    }

    public function getHtml(): string
    {
        $this->lng->loadLanguageModule('buddysystem');

        if (!ilBuddySystem::getInstance()->isEnabled()) {
            return '';
        }

        $relation = $this->buddyList->getRelationByUserId($this->getUsrId());

        // The ILIAS JF decided to add a new personal setting
        if ($relation->isUnlinked() &&
            !ilUtil::yn2tf((string) ilObjUser::_lookupPref($this->getUsrId(), 'bs_allow_to_contact_me'))) {
            return '';
        }

        $buttonTemplate = new ilTemplate(
            'tpl.buddy_system_link_button.html',
            true,
            true,
            'components/ILIAS/Contact/BuddySystem'
        );
        $buttonTemplate->setVariable(
            'BUTTON_HTML',
            ilBuddySystemRelationStateFactory::getInstance()->getStateButtonRendererByOwnerAndRelation(
                $this->user->getId(),
                $relation
            )->getHtml()
        );
        $buttonTemplate->setVariable('BUTTON_BUDDY_ID', $this->getUsrId());
        $buttonTemplate->setVariable('BUTTON_CSS_CLASS', ilBuddySystemLinkButtonType::ROOT_CSS_CLASS);
        $buttonTemplate->setVariable('BUTTON_CURRENT_STATE', $relation->getState()::class);

        return $buttonTemplate->get();
    }
}