<?php
namespace App\Handlers\Registrators;

use App\Enumerations\WidgetTypesWithHandlers;
use App\Models\WidgetType;
use App\Widgets\Contracts\PublicWidget;
use Symfony\Component\Process\Exception\InvalidArgumentException;

class WidgetRegistrator
{
    protected $widgets;

    function __construct()
    {
        $this->widgets = WidgetTypesWithHandlers::getSimple();
    }

    /**
     * Method used for registering new widgets
     *
     * @param $classname
     */
    public function register($classname)
    {
        $class = new $classname;
        if (!$class instanceof PublicWidget) {
            throw new InvalidArgumentException($class . ' must implement PublicWidget interface.');
        }

        // register widget as new widget type
        if (!in_array($classname, $this->widgets)) {
            $widgetName = call_user_func($classname . '::getName');
            $widgetDescription = call_user_func($classname . '::getDescription');

            // create row in widget types
            WidgetType::create([
                                   'handler'     => $classname,
                                   'name'        => $widgetName,
                                   'description' => $widgetDescription
                               ]);

            // install widget (if neccessary)
            call_user_func($classname . '::install');
        }
    }
}