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<?php
/**
 * Copyright © Extmag. All rights reserved.
 */

namespace Extmag\Shiplab\Helper;

use Magento\Framework\App\Helper\AbstractHelper;
use Magento\Framework\App\Helper\Context;
use Magento\Framework\App\Response\Http\FileFactory;
use Magento\Framework\Exception\FileSystemException;
use Magento\Framework\Filesystem;
use Magento\Framework\Filesystem\Driver\File as Driver;

class Filer extends AbstractHelper
{

    /**
     * @var FileFactory
     */
    protected $fileFactory;

    /**
     * @var Url
     */
    protected $url;

    /**
     * @var DriverInterface
     */
    protected $driver;

    /**
     * @var Filesystem
     */
    protected $filesystem;

    /**
     * Pdf constructor.
     * @param Context $context
     * @param FileFactory $fileFactory
     * @param Url $url
     * @param Driver $driver
     * @param Filesystem $filesystem
     */
    public function __construct(
        Context $context,
        FileFactory $fileFactory,
        Url $url,
        Driver $driver,
        Filesystem $filesystem
    ) {
        parent::__construct($context);
        $this->fileFactory = $fileFactory;
        $this->url = $url;
        $this->driver = $driver;
        $this->filesystem = $filesystem;
    }

    /**
     * @param $carrierCode
     * @param $track
     * @param $ext
     * @param $documentType
     * @return string
     * @throws FileSystemException
     */
    public function getFileData($carrierCode, $track, $ext, $documentType)
    {
        $labelFileString = '';
        $labelPath = $this->url->getMediaPath() . '/'
            . $this->url->getExtmagMediaPath(
                $carrierCode,
                $documentType,
                (in_array($documentType, ['label', 'archive']) ? $ext : null)
            ) . $track . '.' . $ext;
        if ($this->driver->isFile($labelPath)) {
            $labelFileString = $this->driver->fileGetContents($labelPath);
        }

        return $labelFileString;
    }
}