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/**
 * Save downloadable files for a WooCommerce product.
 *
 * @param WC_Product $product  Product instance.
 * @param array      $downloads  Array of download data.
 *
 * @return WC_Product
 */
protected function save_downloadable_files( $product, $downloads ) {
    $download_files = [];
 
    foreach ( $downloads as $download_id => $download_data ) {
        // Skip if the file URL is empty
        if ( empty( $download_data['file'] ) ) {
            continue;
        }
 
        // Initialize a new download object
        $download = new WC_Product_Download();
        $download->set_id( $download_id );
        $download->set_name( ! empty( $download_data['name'] ) ? $download_data['name'] : wc_get_filename_from_url( $download_data['file'] ) );
        
        // Apply the filter to the file path
        $filtered_file_path = apply_filters( 'woocommerce_file_download_path', $download_data['file'], $product, $download_id );
        $download->set_file( $filtered_file_path );
        
        $download_files[] = $download;
    }
 
    // Apply a filter to the array of downloads before setting it on the product
    $filtered_download_files = apply_filters( 'woocommerce_product_download_files', $download_files, $product );
 
    // Set the downloads on the product
    $product->set_downloads( $filtered_download_files );
 
    return $product;
}