Clear Static Server Cache and Object Cache(Only site Administrators)

wpmudev_server_cache.php

<?php
/**
 * Plugin Name: WPMUDEV Hosting Clear Static Server Cache and Object Cache
 * Description: Adds a button to the WordPress Admin Bar to clear WPMUDEV Hosting Static Server Cache and Object Cache.
 * Version: 1.0
 * Author: Alfredo Galano Loyola | WPMUDEV
 * Author URI: https://wpmudev.com/
 */

function cwpai_add_clear_static_cache_button() {
    global $wp_admin_bar;
    $blog_id = get_current_blog_id();
    if( current_user_can('edit_posts') && is_main_site()){ 
        $wp_admin_bar->add_menu(array(
            'id' => 'clear_static_cache',
            'title' => 'Clear Server Cache',
            'href' => '#',
            'meta' => array(
                'title' => __('Clear Server Cache'),
            ),
        ));
    }

}
add_action('admin_bar_menu', 'cwpai_add_clear_static_cache_button', 100);

function cwpai_clear_static_cache_button_script() {
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function($) {
            $('#wp-admin-bar-clear_static_cache').click(function() {
                $.ajax({
                    url: '<?php echo admin_url('admin-ajax.php'); ?>',
                    type: 'POST',
                    data: {
                        action: 'cwpai_clear_static_cache'
                    },
                    success: function(data) {
                        alert(data);
						window.location.reload(true);
                    }
                });
            });
        });
    </script>
    <?php
}
add_action('admin_footer', 'cwpai_clear_static_cache_button_script');

function cwpai_clear_static_cache() {
    if (function_exists('wpmudev_hosting_purge_static_cache')) {
        //Clear Static Server Cache
        wpmudev_hosting_purge_static_cache();
        //Clear Object Cache
        if( current_user_can('administrator') ){
            wp_cache_flush();
            echo 'Static Server Cache and Object Cache were cleared.';
        }else{
            echo 'Static Server Cache was cleared.';
        }

        
    } else {
        echo "This site is not hosted with WPMUDEV.";
    }
    die();
}
add_action('wp_ajax_cwpai_clear_static_cache', 'cwpai_clear_static_cache');