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<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * System config Logo image field backend model
 */
namespace Magento\Config\Model\Config\Backend\Image;

/**
 * @api
 * @since 100.0.2
 */
class Logo extends \Magento\Config\Model\Config\Backend\Image
{
    /**
     * The tail part of directory path for uploading
     *
     */
    const UPLOAD_DIR = 'logo';

    /**
     * Return path to directory for upload file
     *
     * @return string
     * @throw \Magento\Framework\Exception\LocalizedException
     */
    protected function _getUploadDir()
    {
        return $this->_mediaDirectory->getAbsolutePath($this->_appendScopeInfo(self::UPLOAD_DIR));
    }

    /**
     * Makes a decision about whether to add info about the scope.
     *
     * @return boolean
     */
    protected function _addWhetherScopeInfo()
    {
        return true;
    }

    /**
     * Getter for allowed extensions of uploaded files.
     *
     * @return string[]
     */
    protected function _getAllowedExtensions()
    {
        return ['jpg', 'jpeg', 'gif', 'png'];
    }
}