Insert content with shortcode if product is bought by customer into product

Insert content with shortcode if product is bought by customer into product.php

<?

/*
 * Insert content with shortcode if product is bought by customer into product
 */

add_action('after_setup_theme', 'remove_admin_bar');
 
function remove_admin_bar() {
if (!current_user_can('administrator') && !is_admin()) {
  show_admin_bar(false);
}
}


add_shortcode( 'p', 'wcr_shortcode' );
function wcr_shortcode( $atts, $content = null ){
	global $product;
    // Normalize attribute keys, lowercase
   // $atts = array_change_key_case( (array) $atts, CASE_LOWER );

    // Shortcode Attributes
   /* $atts = shortcode_atts( array(
        'pid'   => ''
    ), $atts, 'wcr' );*/

    $user = wp_get_current_user();

    // start output
    $html = '<div class="wcr-box">';

    if ( current_user_can('administrator') || wc_customer_bought_product( $user->email, $user->ID, $product->get_id() ) ) {
        // enclosing tags
        if ( ! is_null($content) ) {
            // secure output by executing the_content filter hook on $content
            $html .= apply_filters( 'the_content', $content );
        }

    } else {
        // User hasn't bought this product or is not an administrator
        $html .= __("Please purchase the product first to see the content", "woocommerce");
    }
    // end box
    $html .= '</div>';

    // return output
    return $html;
}