public function toOptionArray()
    {
        $statuses = $this->orderConfig->getStatuses();

        $options[] = [
            'label' => __('---- Default Option ----'),
            'value' => '0',
        ];

        foreach ($statuses as $code => $label) {
            $options[] = ['value' => $code, 'label' => $label];
        }

        return $options;
    }