Customshipping.php

<?php
declare(strict_types=1);

namespace uafrica\Customshipping\Model\Carrier;

use DateTime;
use Magento\Catalog\Model\ResourceModel\Product\CollectionFactory;
use Magento\CatalogInventory\Api\StockRegistryInterface;
use Magento\Directory\Helper\Data;
use Magento\Directory\Model\CountryFactory;
use Magento\Directory\Model\CurrencyFactory;
use Magento\Directory\Model\RegionFactory;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\Controller\Result\JsonFactory;
use Magento\Framework\DataObject;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\HTTP\Client\CurlFactory;
use Magento\Framework\Module\Dir\Reader;
use Magento\Framework\Xml\Security;
use Magento\Quote\Model\Quote\Address\RateRequest;
use Magento\Quote\Model\Quote\Address\RateResult\ErrorFactory;
use Magento\Quote\Model\Quote\Address\RateResult\MethodFactory;
use Magento\Shipping\Model\Carrier\AbstractCarrier;
use Magento\Shipping\Model\Carrier\AbstractCarrierOnline;
use Magento\Shipping\Model\Rate\Result;
use Magento\Shipping\Model\Rate\ResultFactory;
use Magento\Shipping\Model\Simplexml\ElementFactory;
use Magento\Shipping\Model\Tracking\Result\StatusFactory;
use Magento\Store\Model\ScopeInterface;
use Magento\Store\Model\StoreManagerInterface;
use Psr\Log\LoggerInterface;

/**
 * uAfrica shipping implementation
 * @category   uafrica
 * @package    uafrica_Customshipping
 * @author     info@bob.co.za
 * @website    https://www.bob.co.za
 * @SuppressWarnings(PHPMD.ExcessiveClassComplexity)
 * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
 * @SuppressWarnings(PHPMD.TooManyFields)
 */
class Customshipping extends AbstractCarrierOnline implements \Magento\Shipping\Model\Carrier\CarrierInterface
{
    /**
     * Code of the carrier
     *`
     * @var string
     */
    public const CODE = 'uafrica';

    /** Tracking Endpoint */
    const TRACKING = 'https://api.dev.ship.uafrica.com/tracking?channel=localhost&tracking_reference=';
    /*** RATES API Endpoint*/
    const RATES_ENDPOINT = 'https://api.dev.ship.uafrica.com/rates-at-checkout/woocommerce';


    /**
     * Code of the carrier
     *
     * @var string
     */
    protected $_code = self::CODE;

    /**
     * Types of rates, order is important
     *
     * @var array
     */
    protected $_ratesOrder = [