<?php

namespace IpSupply\SyncOrder\Observer;

use Magento\Framework\Event\ObserverInterface;

class CheckOrderStatus implements ObserverInterface
{

    protected $orderRepository;
    protected $dir;

    public function __construct(
        \Magento\Sales\Api\OrderRepositoryInterface $orderRepository,
        \Magento\Framework\Filesystem\DirectoryList $dir,
    ) {
        $this->orderRepository = $orderRepository;
        $this->dir = $dir;
    }

    public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $order = $observer->getEvent()->getOrder();
        $customerId = $order->getCustomerId();
        $OrderStatus = $order->getStatus();
        $file = $this->dir->getPath('log') . '/' . 'CheckOrderStatus.log';
        if (!file_exists($file)) {
            $fh = fopen($file, 'w') or die("Can't create file");
            fclose($fh);
        }
        $current = file_get_contents($file);
        $current .= $customerId . ':' . $OrderStatus . " \n";
        file_put_contents($file, $current);
    }
}