product meta value shortcode

add_shortcode('woo_product_meta', function($atts) {
    global $post;
    $atts = shortcode_atts( array(
        'id' => null,
        'key' => '',
    ), $atts, 'woo_product_meta' );

    if(empty($atts['key'])) return;

    if( intval( $atts['id'] ) > 0 && function_exists( 'wc_get_product' ) ){
        $product = wc_get_product( intval( $atts['id'] ) );
    } elseif( is_product() ) {
        $product = wc_get_product($post);
    }

    if ( ! is_a( $product, 'WC_Product' ) ) return;

    $meta_val = get_post_meta($product->get_id(), $atts['key'], true);

    return $meta_val;
});