[SmartCrawl Pro] Bulk-apply config to subsites

sc-multisite-bulk-apply-config.php

<?php
/**
 * Plugin Name: [SmartCrawl Pro] Bulk-apply config to subsites
 * Description: Adds an "Apply subsite config" link in the SmartCrawl network admin menu with a page to bulk-apply settings to subsites
 * Author: Anderson Salas @ WPMUDEV
 * Task: SLS-6513 
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */

add_action( 'plugins_loaded', function() {
    if ( ! defined( 'SMARTCRAWL_VERSION' ) ) {
        return; // SmartCrawl is not installed/enabled.
    }
    if ( class_exists( 'SmartCrawl_Subsite_Bulk_Config' ) ) {
        return; // Already loaded.
    }
    class SmartCrawl_Subsite_Bulk_Config {
        const NONCE  = 'wds_network_site_bulk_config';

        private static $instance;

        public static function get_instance() {
            if ( null === self::$instance ) {
                self::$instance = new self();
            }
            return self::$instance;
        }

        public function add_sc_submenu_item() {
            add_submenu_page( 
                \SmartCrawl\Admin\Pages\Network_Settings::MENU_SLUG, 
                'Apply subsite config', 
                'Apply subsite config', 
                'manage_network_options', 
                'wds_network_site_bulk_config', 
                [ $this, 'admin_page' ],
                99
            );
        }

        public function __construct() {
            if ( is_admin() && 'wds_network_site_bulk_config' === ( $_GET['page'] ?? '' ) ) {
                add_action( 'admin_enqueue_scripts', function() {
                    wp_enqueue_style( 'wds-app' );
                    wp_enqueue_script( 'wds-shared-ui' );
                });	
                add_filter( 'admin_body_class', function( $class ) {
                    return ( $class ?? '' ) . ' sui-' . str_ireplace( '.', '-', SMARTCRAWL_SUI_VERSION ) . ' ';
                });	
            }

            add_action( 'network_admin_menu', [ $this, 'add_sc_submenu_item' ], 99 );
            add_action( 'admin_footer', [ $this, 'admin_importer_scripts' ] );
            add_action( 'wp_ajax_wds_network_site_bulk_config', [ $this, 'ajax_handle_config' ] );
        }


        public function admin_importer_scripts() {
            ?>
            <script>( function( $ ) {
                $( '.sc-begin-import' ).click( function() {
                    $( this ).addClass( 'disabled' );
                    $( '.import-spinner' ).addClass( 'is-active' );
                    var data = {
                        '_wpnonce'  : $( 'form#config-form input[name="_wpnonce"]' ).val(),
                        'config_id' : $( 'form#config-form select[name="config_id"]' ).val(),
                        'sites' : $( 'form#config-form input[name="sites[]"]:checked' ).map(function() {
                            return $(this).val();
                        }).get(),
                        'action'    : 'wds_network_site_bulk_config' 
                    };
                    $.post( ajaxurl, data, function( response ) {
                        if ( ! response.success ) {
                            alert( response.data.error );
                        } else {
                            alert( response.data.message );
                        }
                    }).fail( function() {
                        alert( 'An error occurred.' );
                    }).always( function() {
                        $( '.sc-begin-import' ).removeClass( 'disabled' );
                        $( '.import-spinner' ).removeClass( 'is-active' );
                    });
                });
                var _validate = function() {
                    $( '.sc-begin-import' ).removeClass( 'disabled' );
                    if ( 0 === $('input.site-checkbox:checked').length || '' === $('select[name="config_id"]').val() )  {
                        $( '.sc-begin-import' ).addClass( 'disabled' );
                    }
                }
                $( '.sc-select-all' ).click( function(e) {
                    e.preventDefault();
                    $( '.site-checkbox' ).prop('checked', true);
                    _validate();
                });
                $( '.sc-select-clear' ).click( function(e) {
                    e.preventDefault();
                    $( '.site-checkbox' ).prop('checked', false);
                    _validate();
                });
                $('input.site-checkbox, select[name="config_id"]').on( 'change', _validate);
                _validate();
            })( window.jQuery )</script>
            <style>
                .label-site, .label-site small {
                    overflow: hidden !important;
                    text-overflow: ellipsis !important;
                    white-space: nowrap !important;
                    display: block !important;
                    max-width: 515px;
                }
            </style>
            <?php
        }

        public function admin_page() {		
            $configs = \SmartCrawl\Configs\Collection::get()->get_deflated_configs();
            $sites   = get_sites();
            ?>
                <div class="sui-wrap">
                    <div class="sui-box" style="max-width:650px;">
                        <div class="sui-box-header">
                            <h2 class="sui-box-title">
                                <span class="sui-icon-widget-settings-config" aria-hidden="true"></span> Apply subsite config
                            </h2>
                        </div>
                        <?php if ( ! is_multisite() ) { ?>
                            <div class="sui-box-body">
                                <p>This tool is compatible only with multisite installations.</p>
                            </div>	
                        <?php } else { ?>
                            <form id="config-form" method="post">
                                <div class="sui-box-body">
                                    <?php wp_nonce_field( self::NONCE ); ?>
                                    <p style="margin-top: 0">Select a config and click <strong>Apply Config</strong> to bulk-apply it to the desired subsites. Do not close this browser tab until the process is done.</p>

                                    <div class="sui-form-field">
                                        <label class="sui-label">Config name</label>
                                        <select id="config-selector" class="sui-select" name="config_id">
                                            <option value="">Select a config...</option>
                                            <?php foreach( $configs as $config ) { ?>
                                                <option value="<?php echo $config['id']; ?>"><?php echo $config['name']; ?></option>
                                            <?php } ?>
                                        </select>
                                    </div>

                                    <label class="sui-label" style="display:block;">
                                        Target subsites
                                        <span style="float:right">
                                            <a href="#" class="sc-select-all" style="display: inline-block; margin-right: 10px">[Select all]</a> 
                                            <a href="#" class="sc-select-clear">[Clear]</a>
                                        </span>
                                    </label>

                                    <div style="display:block;border: 1px solid #ddd;padding: 15px;max-height: 232px;overflow-y: auto;">
                                        <?php 
                                        foreach( $sites as $site ) { 
                                            $site_details = get_blog_details( $site->blog_id );
                                        ?>
                                            <div style="display:block">
                                                <label for="site_<?php echo $site->blog_id; ?>" class="sui-checkbox">
                                                    <input type="checkbox" checked="checked" name="sites[]" value="<?php echo $site->blog_id; ?>" id="site_<?php echo $site->blog_id; ?>" class="site-checkbox" />
                                                    <span aria-hidden="true"></span>
                                                    <span id="label-site_<?php echo $site->blog_id; ?>" class="label-site">
                                                        <?php echo $site_details->blogname; ?><br /><small><?php echo $site_details->siteurl; ?></small>										
                                                    </span>
                                                </label>
                                            </div>
                                        <?php } ?>
                                    </div>

                                    <div class="sui-notice sui-notice-warning" style="margin-top:25px">
                                        <div class="sui-notice-content">
                                            <div class="sui-notice-message">
                                                <span class="sui-notice-icon sui-icon-warning-alert sui-md" aria-hidden="true"></span>
                                                <p><strong>WARNING: Any existing config will be OVERWRITTEN.</strong><br />It is highly recommended that you <a href="https://wpmudev.com/docs/hosting/backups/" target="_blank">create a backup</a> and test this tool on a <a href="https://wpmudev.com/docs/hosting/staging/" target="_blank">Staging Site</a> first.</p>
                                            </div>
                                        </div>
                                    </div>

                                </div>	
                                <div class="sui-box-footer">
                                    <input type="button" name="submit" id="submit" class="sui-button sui-button-blue sc-begin-import" value="Apply Config" />
                                    <div class="spinner import-spinner" style="float:none; width:auto; height:auto; padding: 10px 0 10px 20px; margin-top: 0; margin-left:0"></div>
                                </div>
                            </form>
                        <?php } ?>
                    </div>
                </div>
            <?php
        }

        private function do_bulk_config() {
            $processed = 0;

            if ( empty( $_POST['config_id'] ) ) {
                wp_send_json_error( [ 'error' => 'Invalid or missing parameter: config_id' ] );
            }

            $config_id = sanitize_text_field( $_POST['config_id'] );
            $sites     = [];

            if ( empty( $_POST['sites'] ) || ! is_array( $_POST['sites'] ) ) {
                wp_send_json_error( [ 'error' => 'Invalid or missing parameter: sites' ] );
            }

            foreach( $_POST['sites'] as $site_id ) {
                $sites[] = intval( $site_id );
            }

            if ( empty( $sites ) ) {
                wp_send_json_error( [ 'error' => 'Invalid or missing parameter: sites' ] );
            }
          
            $config = \SmartCrawl\Configs\Collection::get()->get_by_id( $config_id );

            if ( ! $config ) {
                wp_send_json_error( [ 'error' => 'Failed to retrieve config_id: ' . $config_id ] );
            }

            $sc_config_controller = \SmartCrawl\Configs\Controller::get();
            
            foreach( get_sites() as $site ) {
                $blog_id  = (int) $site->blog_id;

                if ( ! in_array( $blog_id, $sites, true ) ) {
                    continue;
                }

                switch_to_blog( $blog_id );
                $sc_config_controller->apply_handler( $config->get_configs() );
                $processed++;
            }

            restore_current_blog();
            return $processed;
        }

        public function ajax_handle_config() {
            if ( empty( $_POST[ '_wpnonce' ] ) || ! wp_verify_nonce( $_POST[ '_wpnonce' ], self::NONCE ) ) {
                wp_send_json_error( [ 'error' => 'Invalid nonce.' ] );
            }
            if ( ! current_user_can( 'manage_network_options' ) ) {
                wp_send_json_error( [ 'error' => 'Not allowed.' ] );
            }
            if ( ! is_multisite() ) {
                wp_send_json_error( [ 'error' => 'This tool is not compatible with single-site installations.' ] );
            }

            $total = $this->do_bulk_config();
            wp_send_json_success( [ 'message' => 'The bulk-config has been completed successfully! (Total sites: ' . $total . ')'] );
        }
    }        
    SmartCrawl_Subsite_Bulk_Config::get_instance();   
});