How to write a regular expression for a URL?

Question

Yii

I set up an advanced CNC in the project, for viewing pages of one news or one project in the controller, one action view is used, because the template is the same:

public function actionView($className, $id, $title)
    {
        switch ($title) {
            case 0:
                $title = 'Проекты';
                $route = 'site/projects';
                break;
            case 1:
                $title = 'Новости';
                $route = 'site/news';
                break;
        }

        if (($model = $className::findOne($id)) !== null) {
            return $this->render('view', [
                'model' => $model,
                'title' => $title,
                'route' => $route,
            ]);
        }

        throw new NotFoundHttpException('The requested page does not exist.');
    }

The default url is:

site/view?className=common%5Cmodels%5CNews&id=1&title=1

.
In the final version, I want to get the name of the model (the last word in className is News) and id, like:
/news-1
Tell me, how can I do it?