<?php
declare(strict_types=1);

namespace Esun\Catalog\Model\MixStepPricing;

use Magento\Framework\App\Filesystem\DirectoryList;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\Filesystem;
use Magento\MediaStorage\Model\File\UploaderFactory;

class FileUploader
{
    private const TARGET_DIRECTORY = 'esun_mix_step_pricing';

    public function __construct(
        private readonly UploaderFactory $uploaderFactory,
        private readonly Filesystem $filesystem
    ) {
    }

    /**
     * @throws LocalizedException
     */
    public function upload(string $fileId): string
    {
        $directory = $this->filesystem->getDirectoryWrite(DirectoryList::VAR_IMPORT_EXPORT);
        $directory->create(self::TARGET_DIRECTORY);

        $uploader = $this->uploaderFactory->create(['fileId' => $fileId]);
        $uploader->setAllowedExtensions(['xlsx', 'xls']);
        $uploader->setAllowRenameFiles(true);
        $uploader->setFilesDispersion(false);
        $result = $uploader->save($directory->getAbsolutePath(self::TARGET_DIRECTORY));
        if (!$result || empty($result['path']) || empty($result['file'])) {
            throw new LocalizedException(__('The Excel file could not be uploaded.'));
        }

        return rtrim((string)$result['path'], DIRECTORY_SEPARATOR)
            . DIRECTORY_SEPARATOR
            . ltrim((string)$result['file'], DIRECTORY_SEPARATOR);
    }
}