class.InternalService.php

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<?php

declare(strict_types=1);

namespace ILIAS\InfoScreen;

use ILIAS\DI\Container;

class InternalService
{
    protected Container $DIC;
    protected array $instance = [];

    public function __construct(Container $DIC)
    {
        $this->DIC = $DIC;
    }

    public function data(): InternalDataService
    {
        return $this->instance["data"] ??
            $this->instance["data"] = new InternalDataService();
    }

    public function domain(): InternalDomainService
    {
        return $this->instance["domain"] ??
            $this->instance["domain"] = new InternalDomainService(
                $this->DIC,
                $this->data()
            );
    }

    public function gui(): InternalGUIService
    {
        return $this->instance["gui"] ??
            $this->instance["gui"] = new InternalGUIService(
                $this->DIC,
                $this->data(),
                $this->domain()
            );
    }
}