Exclude payment methode depending on product or category

<?php
defined('_JEXEC') or die();

class plgSystemHikapaymentrestriction extends \Joomla\CMS\Plugin\CMSPlugin {
	// the payment methods to hide, and the categories which hide them
	protected $payment_ids = array(2, 3);
	protected $category_ids = array(15);

	public function onPaymentDisplay(&$order, &$methods, &$usable_methods) {
		if(empty($order->products) || empty($methods))
			return true;

		$ids = array();
		foreach($order->products as $product) {
			$ids[] = (int)$product->product_id;
			if(!empty($product->product_parent_id))
				$ids[] = (int)$product->product_parent_id;
		}

		$db = \Joomla\CMS\Factory::getContainer()->get('DatabaseDriver');
		$db->setQuery('SELECT COUNT(*) FROM '.hikashop_table('product_category').
			' WHERE product_id IN ('.implode(',', $ids).')'.
			' AND category_id IN ('.implode(',', $this->category_ids).')');
		if(!$db->loadResult())
			return true;

		foreach($methods as $k => $method) {
			if(in_array((int)$method->payment_id, $this->payment_ids))
				unset($methods[$k]);
		}
		foreach($usable_methods as $k => $method) {
			if(in_array((int)$method->payment_id, $this->payment_ids))
				unset($usable_methods[$k]);
		}
		return true;
	}
}