Mini wallet shortcode

mini-wallet-shortcode.php

function woo_mini_wallet_callback() {
    if (!function_exists('woo_wallet') || !is_user_logged_in()) {
        return '';
    }
    ob_start();
    $title = __('Current wallet balance', 'woo-wallet');
    $mini_wallet = '<a class="woo-wallet-menu-contents" href="' . esc_url(wc_get_account_endpoint_url(get_option('woocommerce_woo_wallet_endpoint', 'woo-wallet'))) . '" title="' . $title . '">';
    $mini_wallet .= '<span class="woo-wallet-icon-wallet"></span>';
    $mini_wallet .= woo_wallet()->wallet->get_wallet_balance(get_current_user_id());
    $mini_wallet .= '</a>';
    echo $mini_wallet;
    return ob_get_clean();
}
add_shortcode('woo-mini-wallet', 'woo_mini_wallet_callback');