<?php

namespace ASENHA\Classes;

/**
 * Class related to sanitization of settings fields for saving as options
 *
 * @since 2.2.0
 */
class Settings_Sanitization {
    /**
     * Sanitize options
     *
     * @since 1.0.0
     */
    function sanitize_for_options( $options ) {
        // Call WordPress globals required for validating the fields
        global 
            $wp_roles,
            $asenha_all_post_types,
            $asenha_public_post_types,
            $asenha_nonpublic_post_types,
            $asenha_gutenberg_post_types,
            $asenha_revisions_post_types,
            $active_plugin_slugs
        ;
        $roles = $wp_roles->get_names();
        $existing_options = get_option( ASENHA_SLUG_U, array() );
        $options_extra = get_option( ASENHA_SLUG_U . '_extra', array() );
        // if ( false === $options_extra ) {
        // 	add_option( ASENHA_SLUG_U . '_extra', array(), true );
        // }
        $common_methods = new Common_Methods();
        $email_delivery = new Email_Delivery();
        // Content Duplication
        if ( !isset( $options['enable_duplication'] ) ) {
            $options['enable_duplication'] = false;
        }
        $options['enable_duplication'] = ( 'on' == $options['enable_duplication'] ? true : false );
        if ( !isset( $options['duplication_redirect_destination'] ) ) {
            $options['duplication_redirect_destination'] = 'edit';
        }
        // Content Order
        if ( !isset( $options['content_order'] ) ) {
            $options['content_order'] = false;
        }
        $options['content_order'] = ( 'on' == $options['content_order'] ? true : false );
        if ( is_array( $asenha_all_post_types ) ) {
            foreach ( $asenha_all_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post, $post_type_label is Posts
                if ( post_type_supports( $post_type_slug, 'page-attributes' ) || is_post_type_hierarchical( $post_type_slug ) ) {
                    if ( !isset( $options['content_order_for'][$post_type_slug] ) ) {
                        $options['content_order_for'][$post_type_slug] = false;
                    }
                    $options['content_order_for'][$post_type_slug] = ( 'on' == $options['content_order_for'][$post_type_slug] ? true : false );
                }
            }
        }
        // Media Library Access Control
        if ( !isset( $options['media_files_visibility_control'] ) ) {
            $options['media_files_visibility_control'] = false;
        }
        $options['media_files_visibility_control'] = ( 'on' == $options['media_files_visibility_control'] ? true : false );
        // Enable Media Replacement
        if ( !isset( $options['enable_media_replacement'] ) ) {
            $options['enable_media_replacement'] = false;
        }
        $options['enable_media_replacement'] = ( 'on' == $options['enable_media_replacement'] ? true : false );
        if ( !isset( $options['disable_media_replacement_cache_busting'] ) ) {
            $options['disable_media_replacement_cache_busting'] = false;
        }
        $options['disable_media_replacement_cache_busting'] = ( 'on' == $options['disable_media_replacement_cache_busting'] ? true : false );
        // Enable SVG Upload
        if ( !isset( $options['enable_svg_upload'] ) ) {
            $options['enable_svg_upload'] = false;
        }
        $options['enable_svg_upload'] = ( 'on' == $options['enable_svg_upload'] ? true : false );
        if ( is_array( $roles ) ) {
            foreach ( $roles as $role_slug => $role_label ) {
                // e.g. $role_slug is administrator, $role_label is Administrator
                if ( !isset( $options['enable_svg_upload_for'][$role_slug] ) ) {
                    $options['enable_svg_upload_for'][$role_slug] = false;
                }
                $options['enable_svg_upload_for'][$role_slug] = ( 'on' == $options['enable_svg_upload_for'][$role_slug] ? true : false );
            }
        }
        // Enable SVG Upload
        if ( !isset( $options['enable_avif_upload'] ) ) {
            $options['enable_avif_upload'] = false;
        }
        $options['enable_avif_upload'] = ( 'on' == $options['enable_avif_upload'] ? true : false );
        // Enable External Permalinks
        if ( !isset( $options['enable_external_permalinks'] ) ) {
            $options['enable_external_permalinks'] = false;
        }
        $options['enable_external_permalinks'] = ( 'on' == $options['enable_external_permalinks'] ? true : false );
        if ( is_array( $asenha_public_post_types ) ) {
            foreach ( $asenha_public_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post, $post_type_label is Posts
                if ( !isset( $options['enable_external_permalinks_for'][$post_type_slug] ) ) {
                    $options['enable_external_permalinks_for'][$post_type_slug] = false;
                }
                $options['enable_external_permalinks_for'][$post_type_slug] = ( 'on' == $options['enable_external_permalinks_for'][$post_type_slug] ? true : false );
            }
        }
        // Open All External Links in New Tab
        if ( !isset( $options['external_links_new_tab'] ) ) {
            $options['external_links_new_tab'] = false;
        }
        $options['external_links_new_tab'] = ( 'on' == $options['external_links_new_tab'] ? true : false );
        // Allow Custom Nav Menu Items to Open in New Tab
        if ( !isset( $options['custom_nav_menu_items_new_tab'] ) ) {
            $options['custom_nav_menu_items_new_tab'] = false;
        }
        $options['custom_nav_menu_items_new_tab'] = ( 'on' == $options['custom_nav_menu_items_new_tab'] ? true : false );
        // Enable Auto-Publishing of Posts with Missed Schedules
        if ( !isset( $options['enable_missed_schedule_posts_auto_publish'] ) ) {
            $options['enable_missed_schedule_posts_auto_publish'] = false;
        }
        $options['enable_missed_schedule_posts_auto_publish'] = ( 'on' == $options['enable_missed_schedule_posts_auto_publish'] ? true : false );
        // =================================================================
        // ADMIN INTERFACE
        // =================================================================
        // Hide or Modify Elements / Clean Up Admin Bar
        if ( !isset( $options['hide_modify_elements'] ) ) {
            $options['hide_modify_elements'] = false;
        }
        $options['hide_modify_elements'] = ( 'on' == $options['hide_modify_elements'] ? true : false );
        if ( !isset( $options['hide_ab_wp_logo_menu'] ) ) {
            $options['hide_ab_wp_logo_menu'] = false;
        }
        $options['hide_ab_wp_logo_menu'] = ( 'on' == $options['hide_ab_wp_logo_menu'] ? true : false );
        if ( !isset( $options['hide_ab_site_menu'] ) ) {
            $options['hide_ab_site_menu'] = false;
        }
        $options['hide_ab_site_menu'] = ( 'on' == $options['hide_ab_site_menu'] ? true : false );
        if ( !isset( $options['hide_ab_customize_menu'] ) ) {
            $options['hide_ab_customize_menu'] = false;
        }
        $options['hide_ab_customize_menu'] = ( 'on' == $options['hide_ab_customize_menu'] ? true : false );
        if ( !isset( $options['hide_ab_comments_menu'] ) ) {
            $options['hide_ab_comments_menu'] = false;
        }
        $options['hide_ab_comments_menu'] = ( 'on' == $options['hide_ab_comments_menu'] ? true : false );
        if ( !isset( $options['hide_ab_updates_menu'] ) ) {
            $options['hide_ab_updates_menu'] = false;
        }
        $options['hide_ab_updates_menu'] = ( 'on' == $options['hide_ab_updates_menu'] ? true : false );
        if ( !isset( $options['hide_ab_new_content_menu'] ) ) {
            $options['hide_ab_new_content_menu'] = false;
        }
        $options['hide_ab_new_content_menu'] = ( 'on' == $options['hide_ab_new_content_menu'] ? true : false );
        if ( !isset( $options['hide_ab_howdy'] ) ) {
            $options['hide_ab_howdy'] = false;
        }
        $options['hide_ab_howdy'] = ( 'on' == $options['hide_ab_howdy'] ? true : false );
        if ( !isset( $options['hide_help_drawer'] ) ) {
            $options['hide_help_drawer'] = false;
        }
        $options['hide_help_drawer'] = ( 'on' == $options['hide_help_drawer'] ? true : false );
        // Hide Admin Notices
        if ( !isset( $options['hide_admin_notices'] ) ) {
            $options['hide_admin_notices'] = false;
        }
        $options['hide_admin_notices'] = ( 'on' == $options['hide_admin_notices'] ? true : false );
        // Disable Dashboard Widgets
        if ( !isset( $options['disable_dashboard_widgets'] ) ) {
            $options['disable_dashboard_widgets'] = false;
        }
        $options['disable_dashboard_widgets'] = ( 'on' == $options['disable_dashboard_widgets'] ? true : false );
        $dashboard_widgets = $options_extra['dashboard_widgets'];
        if ( is_array( $dashboard_widgets ) ) {
            foreach ( $dashboard_widgets as $widget ) {
                if ( !isset( $options['disabled_dashboard_widgets'][$widget['id'] . '__' . $widget['context'] . '__' . $widget['priority']] ) ) {
                    $options['disabled_dashboard_widgets'][$widget['id'] . '__' . $widget['context'] . '__' . $widget['priority']] = false;
                }
                $options['disabled_dashboard_widgets'][$widget['id'] . '__' . $widget['context'] . '__' . $widget['priority']] = ( 'on' == $options['disabled_dashboard_widgets'][$widget['id'] . '__' . $widget['context'] . '__' . $widget['priority']] ? true : false );
            }
        }
        if ( !isset( $options['disable_welcome_panel_in_dashboard'] ) ) {
            $options['disable_welcome_panel_in_dashboard'] = false;
        }
        $options['disable_welcome_panel_in_dashboard'] = ( 'on' == $options['disable_welcome_panel_in_dashboard'] ? true : false );
        // Hide Admin Bar
        if ( !isset( $options['hide_admin_bar'] ) ) {
            $options['hide_admin_bar'] = false;
        }
        $options['hide_admin_bar'] = ( 'on' == $options['hide_admin_bar'] ? true : false );
        if ( is_array( $roles ) ) {
            foreach ( $roles as $role_slug => $role_label ) {
                // e.g. $role_slug is administrator, $role_label is Administrator
                // on the frontend
                if ( !isset( $options['hide_admin_bar_for'][$role_slug] ) ) {
                    $options['hide_admin_bar_for'][$role_slug] = false;
                }
                $options['hide_admin_bar_for'][$role_slug] = ( 'on' == $options['hide_admin_bar_for'][$role_slug] ? true : false );
                if ( !isset( $options['hide_admin_bar_always_show_for_admins'] ) ) {
                    $options['hide_admin_bar_always_show_for_admins'] = false;
                }
                $options['hide_admin_bar_always_show_for_admins'] = ( 'on' == $options['hide_admin_bar_always_show_for_admins'] ? true : false );
            }
        }
        // Wider Admin Menu
        if ( !isset( $options['wider_admin_menu'] ) ) {
            $options['wider_admin_menu'] = false;
        }
        $options['wider_admin_menu'] = ( 'on' == $options['wider_admin_menu'] ? true : false );
        if ( !isset( $options['admin_menu_width'] ) ) {
            $options['admin_menu_width'] = 200;
        }
        $options['admin_menu_width'] = ( !empty( $options['admin_menu_width'] ) ? sanitize_text_field( $options['admin_menu_width'] ) : 200 );
        // Admin Menu Organizer
        if ( !isset( $options['customize_admin_menu'] ) ) {
            $options['customize_admin_menu'] = false;
        }
        $options['customize_admin_menu'] = ( 'on' == $options['customize_admin_menu'] ? true : false );
        if ( !isset( $options['admin_menu_organizer_sticky_collapse_menu'] ) ) {
            $options['admin_menu_organizer_sticky_collapse_menu'] = false;
        }
        $options['admin_menu_organizer_sticky_collapse_menu'] = ( 'on' == $options['admin_menu_organizer_sticky_collapse_menu'] ? true : false );
        // Enhance List Tables
        if ( !isset( $options['enhance_list_tables'] ) ) {
            $options['enhance_list_tables'] = false;
        }
        $options['enhance_list_tables'] = ( 'on' == $options['enhance_list_tables'] ? true : false );
        // Show Featured Image Column
        if ( !isset( $options['show_featured_image_column'] ) ) {
            $options['show_featured_image_column'] = false;
        }
        $options['show_featured_image_column'] = ( 'on' == $options['show_featured_image_column'] ? true : false );
        // Show Excerpt Column
        if ( !isset( $options['show_excerpt_column'] ) ) {
            $options['show_excerpt_column'] = false;
        }
        $options['show_excerpt_column'] = ( 'on' == $options['show_excerpt_column'] ? true : false );
        // Show Last Modified Column
        if ( !isset( $options['show_last_modified_column'] ) ) {
            $options['show_last_modified_column'] = false;
        }
        $options['show_last_modified_column'] = ( 'on' == $options['show_last_modified_column'] ? true : false );
        // Show ID Column
        if ( !isset( $options['show_id_column'] ) ) {
            $options['show_id_column'] = false;
        }
        $options['show_id_column'] = ( 'on' == $options['show_id_column'] ? true : false );
        // Show File Size Column in Media Library
        if ( !isset( $options['show_file_size_column'] ) ) {
            $options['show_file_size_column'] = false;
        }
        $options['show_file_size_column'] = ( 'on' == $options['show_file_size_column'] ? true : false );
        // Show ID in Action Row
        if ( !isset( $options['show_id_in_action_row'] ) ) {
            $options['show_id_in_action_row'] = false;
        }
        $options['show_id_in_action_row'] = ( 'on' == $options['show_id_in_action_row'] ? true : false );
        // Show Custom Taxonomy Filters
        if ( !isset( $options['show_custom_taxonomy_filters'] ) ) {
            $options['show_custom_taxonomy_filters'] = false;
        }
        $options['show_custom_taxonomy_filters'] = ( 'on' == $options['show_custom_taxonomy_filters'] ? true : false );
        // Hide Date Column
        if ( !isset( $options['hide_date_column'] ) ) {
            $options['hide_date_column'] = false;
        }
        $options['hide_date_column'] = ( 'on' == $options['hide_date_column'] ? true : false );
        // Hide Comments Column
        if ( !isset( $options['hide_comments_column'] ) ) {
            $options['hide_comments_column'] = false;
        }
        $options['hide_comments_column'] = ( 'on' == $options['hide_comments_column'] ? true : false );
        // Hide Post Tags Column
        if ( !isset( $options['hide_post_tags_column'] ) ) {
            $options['hide_post_tags_column'] = false;
        }
        $options['hide_post_tags_column'] = ( 'on' == $options['hide_post_tags_column'] ? true : false );
        // Custom Admin Footer Text
        if ( !isset( $options['custom_admin_footer_text'] ) ) {
            $options['custom_admin_footer_text'] = false;
        }
        $options['custom_admin_footer_text'] = ( 'on' == $options['custom_admin_footer_text'] ? true : false );
        if ( !isset( $options['custom_admin_footer_left'] ) ) {
            $options['custom_admin_footer_left'] = '';
        }
        $options['custom_admin_footer_left'] = ( !empty( $options['custom_admin_footer_left'] ) ? wp_kses_post( $options['custom_admin_footer_left'] ) : '' );
        if ( !isset( $options['custom_admin_footer_right'] ) ) {
            $options['custom_admin_footer_right'] = '';
        }
        $options['custom_admin_footer_right'] = ( !empty( $options['custom_admin_footer_right'] ) ? wp_kses_post( $options['custom_admin_footer_right'] ) : '' );
        // Various Admin UI Enhancements
        if ( !isset( $options['various_admin_ui_enhancements'] ) ) {
            $options['various_admin_ui_enhancements'] = false;
        }
        $options['various_admin_ui_enhancements'] = ( 'on' == $options['various_admin_ui_enhancements'] ? true : false );
        // Media Library Infinite Scrolling
        if ( !isset( $options['media_library_infinite_scrolling'] ) ) {
            $options['media_library_infinite_scrolling'] = false;
        }
        $options['media_library_infinite_scrolling'] = ( 'on' == $options['media_library_infinite_scrolling'] ? true : false );
        // Display Active Plugins First
        if ( !isset( $options['display_active_plugins_first'] ) ) {
            $options['display_active_plugins_first'] = false;
        }
        $options['display_active_plugins_first'] = ( 'on' == $options['display_active_plugins_first'] ? true : false );
        // =================================================================
        // LOG IN/OUT | REGISTER
        // =================================================================
        // Change Login URL
        if ( !isset( $options['change_login_url'] ) ) {
            $options['change_login_url'] = false;
        }
        $options['change_login_url'] = ( 'on' == $options['change_login_url'] ? true : false );
        if ( !isset( $options['custom_login_slug'] ) ) {
            $options['custom_login_slug'] = 'backend';
        }
        $options['custom_login_slug'] = ( !empty( $options['custom_login_slug'] ) ? sanitize_text_field( trim( $options['custom_login_slug'], '/' ) ) : 'backend' );
        if ( !isset( $options['custom_login_whitelist'] ) ) {
            $options['custom_login_whitelist'] = '';
        }
        $options['custom_login_whitelist'] = ( !empty( $options['custom_login_whitelist'] ) ? sanitize_textarea_field( $options['custom_login_whitelist'] ) : '' );
        // Login ID Type
        if ( !isset( $options['login_id_type_restriction'] ) ) {
            $options['login_id_type_restriction'] = false;
        }
        $options['login_id_type_restriction'] = ( 'on' == $options['login_id_type_restriction'] ? true : false );
        if ( !isset( $options['login_id_type'] ) ) {
            $options['login_id_type'] = 'username';
        }
        $options['login_id_type'] = ( !empty( $options['login_id_type'] ) ? sanitize_text_field( $options['login_id_type'] ) : 'username' );
        // Use Site Identity on the Login Page
        if ( !isset( $options['site_identity_on_login'] ) ) {
            $options['site_identity_on_login'] = false;
        }
        $options['site_identity_on_login'] = ( 'on' == $options['site_identity_on_login'] ? true : false );
        // Enable Login Logout Menu
        if ( !isset( $options['enable_login_logout_menu'] ) ) {
            $options['enable_login_logout_menu'] = false;
        }
        $options['enable_login_logout_menu'] = ( 'on' == $options['enable_login_logout_menu'] ? true : false );
        // Redirect After Login
        if ( !isset( $options['redirect_after_login'] ) ) {
            $options['redirect_after_login'] = false;
        }
        $options['redirect_after_login'] = ( 'on' == $options['redirect_after_login'] ? true : false );
        if ( !isset( $options['redirect_after_login_type'] ) ) {
            $options['redirect_after_login_type'] = 'single_url';
        }
        $options['redirect_after_login_type'] = ( !empty( $options['redirect_after_login_type'] ) ? sanitize_text_field( $options['redirect_after_login_type'] ) : 'single_url' );
        if ( !isset( $options['redirect_after_login_to_slug'] ) ) {
            $options['redirect_after_login_to_slug'] = '';
        }
        $options['redirect_after_login_to_slug'] = ( !empty( $options['redirect_after_login_to_slug'] ) ? sanitize_text_field( $options['redirect_after_login_to_slug'] ) : '' );
        if ( is_array( $roles ) ) {
            foreach ( $roles as $role_slug => $role_label ) {
                // e.g. $role_slug is administrator, $role_label is Administrator
                if ( !isset( $options['redirect_after_login_for'][$role_slug] ) ) {
                    $options['redirect_after_login_for'][$role_slug] = false;
                }
                $options['redirect_after_login_for'][$role_slug] = ( 'on' == $options['redirect_after_login_for'][$role_slug] ? true : false );
            }
        }
        // Redirect After Logout
        if ( !isset( $options['redirect_after_logout'] ) ) {
            $options['redirect_after_logout'] = false;
        }
        $options['redirect_after_logout'] = ( 'on' == $options['redirect_after_logout'] ? true : false );
        if ( !isset( $options['redirect_after_logout_type'] ) ) {
            $options['redirect_after_logout_type'] = 'single_url';
        }
        $options['redirect_after_logout_type'] = ( !empty( $options['redirect_after_logout_type'] ) ? sanitize_text_field( $options['redirect_after_logout_type'] ) : 'single_url' );
        if ( !isset( $options['redirect_after_logout_to_slug'] ) ) {
            $options['redirect_after_logout_to_slug'] = '';
        }
        $options['redirect_after_logout_to_slug'] = ( !empty( $options['redirect_after_logout_to_slug'] ) ? sanitize_text_field( $options['redirect_after_logout_to_slug'] ) : '' );
        if ( is_array( $roles ) ) {
            foreach ( $roles as $role_slug => $role_label ) {
                // e.g. $role_slug is administrator, $role_label is Administrator
                if ( !isset( $options['redirect_after_logout_for'][$role_slug] ) ) {
                    $options['redirect_after_logout_for'][$role_slug] = false;
                }
                $options['redirect_after_logout_for'][$role_slug] = ( 'on' == $options['redirect_after_logout_for'][$role_slug] ? true : false );
            }
        }
        // Disable User Account
        if ( !isset( $options['disable_user_account'] ) ) {
            $options['disable_user_account'] = false;
        }
        $options['disable_user_account'] = ( 'on' == $options['disable_user_account'] ? true : false );
        // Last Login Column
        if ( !isset( $options['enable_last_login_column'] ) ) {
            $options['enable_last_login_column'] = false;
        }
        $options['enable_last_login_column'] = ( 'on' == $options['enable_last_login_column'] ? true : false );
        // Registration Date Column
        if ( !isset( $options['registration_date_column'] ) ) {
            $options['registration_date_column'] = false;
        }
        $options['registration_date_column'] = ( 'on' == $options['registration_date_column'] ? true : false );
        // Enable Custom Admin CSS
        if ( !isset( $options['enable_custom_admin_css'] ) ) {
            $options['enable_custom_admin_css'] = false;
        }
        $options['enable_custom_admin_css'] = ( 'on' == $options['enable_custom_admin_css'] ? true : false );
        if ( !isset( $options['custom_admin_css'] ) ) {
            $options['custom_admin_css'] = '';
        }
        $options['custom_admin_css'] = ( !empty( $options['custom_admin_css'] ) ? $options['custom_admin_css'] : '' );
        // Enable Custom Frontend CSS
        if ( !isset( $options['enable_custom_frontend_css'] ) ) {
            $options['enable_custom_frontend_css'] = false;
        }
        $options['enable_custom_frontend_css'] = ( 'on' == $options['enable_custom_frontend_css'] ? true : false );
        if ( !isset( $options['custom_frontend_css'] ) ) {
            $options['custom_frontend_css'] = '';
        }
        $options['custom_frontend_css'] = ( !empty( $options['custom_frontend_css'] ) ? $options['custom_frontend_css'] : '' );
        // Custom Body Class
        if ( !isset( $options['enable_custom_body_class'] ) ) {
            $options['enable_custom_body_class'] = false;
        }
        $options['enable_custom_body_class'] = ( 'on' == $options['enable_custom_body_class'] ? true : false );
        if ( is_array( $asenha_public_post_types ) ) {
            foreach ( $asenha_public_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post, $post_type_label is Posts
                if ( !isset( $options['enable_custom_body_class_for'][$post_type_slug] ) ) {
                    $options['enable_custom_body_class_for'][$post_type_slug] = false;
                }
                $options['enable_custom_body_class_for'][$post_type_slug] = ( 'on' == $options['enable_custom_body_class_for'][$post_type_slug] ? true : false );
            }
        }
        // Manage ads.txt and app-ads.txt
        if ( !isset( $options['manage_ads_appads_txt'] ) ) {
            $options['manage_ads_appads_txt'] = false;
        }
        $options['manage_ads_appads_txt'] = ( 'on' == $options['manage_ads_appads_txt'] ? true : false );
        if ( !isset( $options['ads_txt_content'] ) ) {
            $options['ads_txt_content'] = '';
        }
        $options['ads_txt_content'] = ( !empty( $options['ads_txt_content'] ) ? $options['ads_txt_content'] : '' );
        if ( !isset( $options['app_ads_txt_content'] ) ) {
            $options['app_ads_txt_content'] = '';
        }
        $options['app_ads_txt_content'] = ( !empty( $options['app_ads_txt_content'] ) ? $options['app_ads_txt_content'] : '' );
        // Manage robots.txt
        if ( !isset( $options['manage_robots_txt'] ) ) {
            $options['manage_robots_txt'] = false;
        }
        $options['manage_robots_txt'] = ( 'on' == $options['manage_robots_txt'] ? true : false );
        if ( !isset( $options['robots_txt_content'] ) ) {
            $options['robots_txt_content'] = '';
        } else {
            if ( !empty( $options['robots_txt_content'] ) ) {
                $options['robots_txt_content'] = $options['robots_txt_content'];
                $is_robots_txt_real_file = is_file( ABSPATH . 'robots.txt' );
                // rename real robots.txt file if it exists and Mange robots.txt is enabled
                if ( $is_robots_txt_real_file && 'on' == $options['manage_robots_txt'] ) {
                    $robots_txt_backup_filename = 'robots_backup_' . date( 'Y_m_d__H_i', time() ) . '.txt';
                    $options_extra = get_option( ASENHA_SLUG_U . '_extra', array() );
                    $options_extra['robots_txt_backup_file_name'] = $robots_txt_backup_filename;
                    update_option( ASENHA_SLUG_U . '_extra', $options_extra, true );
                    rename( ABSPATH . 'robots.txt', ABSPATH . $robots_txt_backup_filename );
                } elseif ( 'on' != $options['manage_robots_txt'] ) {
                    $options_extra = get_option( ASENHA_SLUG_U . '_extra', array() );
                    if ( array_key_exists( 'robots_txt_backup_file_name', $options_extra ) ) {
                        if ( is_file( ABSPATH . $options_extra['robots_txt_backup_file_name'] ) ) {
                            rename( ABSPATH . $options_extra['robots_txt_backup_file_name'], ABSPATH . 'robots.txt' );
                        }
                    }
                }
            } else {
                $options['robots_txt_content'] = '';
            }
        }
        // Insert <head>, <body> and <footer> code
        if ( !isset( $options['insert_head_body_footer_code'] ) ) {
            $options['insert_head_body_footer_code'] = false;
        }
        $options['insert_head_body_footer_code'] = ( 'on' == $options['insert_head_body_footer_code'] ? true : false );
        if ( !isset( $options['disable_code_unslash'] ) ) {
            $options['disable_code_unslash'] = false;
        }
        $options['disable_code_unslash'] = ( 'on' == $options['disable_code_unslash'] ? true : false );
        if ( !isset( $options['head_code_priority'] ) ) {
            $options['head_code_priority'] = 10;
        }
        $options['head_code_priority'] = ( !empty( $options['head_code_priority'] ) ? $options['head_code_priority'] : 10 );
        if ( !isset( $options['head_code'] ) ) {
            $options['head_code'] = '';
        }
        $options['head_code'] = ( !empty( $options['head_code'] ) ? $common_methods->sanitize_html_js_css_code( $options['head_code'] ) : '' );
        if ( !isset( $options['body_code_priority'] ) ) {
            $options['body_code_priority'] = 10;
        }
        $options['body_code_priority'] = ( !empty( $options['body_code_priority'] ) ? $options['body_code_priority'] : 10 );
        if ( !isset( $options['body_code'] ) ) {
            $options['body_code'] = '';
        }
        $options['body_code'] = ( !empty( $options['body_code'] ) ? $common_methods->sanitize_html_js_css_code( $options['body_code'] ) : '' );
        if ( !isset( $options['footer_code_priority'] ) ) {
            $options['footer_code_priority'] = 10;
        }
        $options['footer_code_priority'] = ( !empty( $options['footer_code_priority'] ) ? $options['footer_code_priority'] : 10 );
        if ( !isset( $options['footer_code'] ) ) {
            $options['footer_code'] = '';
        }
        $options['footer_code'] = ( !empty( $options['footer_code'] ) ? $common_methods->sanitize_html_js_css_code( $options['footer_code'] ) : '' );
        // =================================================================
        // DISABLE COMPONENTS
        // =================================================================
        // Disable Gutenberg
        if ( !isset( $options['disable_gutenberg'] ) ) {
            $options['disable_gutenberg'] = false;
        }
        $options['disable_gutenberg'] = ( 'on' == $options['disable_gutenberg'] ? true : false );
        if ( is_array( $asenha_gutenberg_post_types ) ) {
            foreach ( $asenha_gutenberg_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post,
                if ( !isset( $options['disable_gutenberg_for'][$post_type_slug] ) ) {
                    $options['disable_gutenberg_for'][$post_type_slug] = false;
                }
                $options['disable_gutenberg_for'][$post_type_slug] = ( 'on' == $options['disable_gutenberg_for'][$post_type_slug] ? true : false );
            }
        }
        if ( !isset( $options['disable_gutenberg_frontend_styles'] ) ) {
            $options['disable_gutenberg_frontend_styles'] = false;
        }
        $options['disable_gutenberg_frontend_styles'] = ( 'on' == $options['disable_gutenberg_frontend_styles'] ? true : false );
        // Disable Comments
        if ( !isset( $options['disable_comments'] ) ) {
            $options['disable_comments'] = false;
        }
        $options['disable_comments'] = ( 'on' == $options['disable_comments'] ? true : false );
        if ( is_array( $asenha_public_post_types ) ) {
            foreach ( $asenha_public_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post, $post_type_label is Posts
                if ( 'kt_gallery' === $post_type_slug ) {
                    continue;
                }
                if ( !isset( $options['disable_comments_for'][$post_type_slug] ) ) {
                    $options['disable_comments_for'][$post_type_slug] = false;
                }
                $options['disable_comments_for'][$post_type_slug] = ( 'on' == $options['disable_comments_for'][$post_type_slug] ? true : false );
            }
        }
        if ( isset( $options['disable_comments_for']['kt_gallery'] ) ) {
            unset($options['disable_comments_for']['kt_gallery']);
        }
        // Disable REST API
        if ( !isset( $options['disable_rest_api'] ) ) {
            $options['disable_rest_api'] = false;
        }
        $options['disable_rest_api'] = ( 'on' == $options['disable_rest_api'] ? true : false );
        // Disable Feeds
        if ( !isset( $options['disable_feeds'] ) ) {
            $options['disable_feeds'] = false;
        }
        $options['disable_feeds'] = ( 'on' == $options['disable_feeds'] ? true : false );
        // Disable Embeds
        if ( !isset( $options['disable_embeds'] ) ) {
            $options['disable_embeds'] = false;
        }
        $options['disable_embeds'] = ( 'on' == $options['disable_embeds'] ? true : false );
        if ( !isset( $options['disable_embeds_flush_rewrite_rules_needed'] ) ) {
            $options['disable_embeds_flush_rewrite_rules_needed'] = false;
        }
        // Disable Auto Updates
        if ( !isset( $options['disable_all_updates'] ) ) {
            $options['disable_all_updates'] = false;
        }
        $options['disable_all_updates'] = ( 'on' == $options['disable_all_updates'] ? true : false );
        // Disable Author Archives
        if ( !isset( $options['disable_author_archives'] ) ) {
            $options['disable_author_archives'] = false;
        }
        $options['disable_author_archives'] = ( 'on' == $options['disable_author_archives'] ? true : false );
        // Disable Smaller Components
        if ( !isset( $options['disable_smaller_components'] ) ) {
            $options['disable_smaller_components'] = false;
        }
        $options['disable_smaller_components'] = ( 'on' == $options['disable_smaller_components'] ? true : false );
        if ( !isset( $options['disable_head_generator_tag'] ) ) {
            $options['disable_head_generator_tag'] = false;
        }
        $options['disable_head_generator_tag'] = ( 'on' == $options['disable_head_generator_tag'] ? true : false );
        if ( !isset( $options['disable_feed_generator_tag'] ) ) {
            $options['disable_feed_generator_tag'] = false;
        }
        $options['disable_feed_generator_tag'] = ( 'on' == $options['disable_feed_generator_tag'] ? true : false );
        if ( !isset( $options['disable_resource_version_number'] ) ) {
            $options['disable_resource_version_number'] = false;
        }
        $options['disable_resource_version_number'] = ( 'on' == $options['disable_resource_version_number'] ? true : false );
        if ( !isset( $options['disable_head_wlwmanifest_tag'] ) ) {
            $options['disable_head_wlwmanifest_tag'] = false;
        }
        $options['disable_head_wlwmanifest_tag'] = ( 'on' == $options['disable_head_wlwmanifest_tag'] ? true : false );
        if ( !isset( $options['disable_head_rsd_tag'] ) ) {
            $options['disable_head_rsd_tag'] = false;
        }
        $options['disable_head_rsd_tag'] = ( 'on' == $options['disable_head_rsd_tag'] ? true : false );
        if ( !isset( $options['disable_head_shortlink_tag'] ) ) {
            $options['disable_head_shortlink_tag'] = false;
        }
        $options['disable_head_shortlink_tag'] = ( 'on' == $options['disable_head_shortlink_tag'] ? true : false );
        if ( !isset( $options['disable_frontend_dashicons'] ) ) {
            $options['disable_frontend_dashicons'] = false;
        }
        $options['disable_frontend_dashicons'] = ( 'on' == $options['disable_frontend_dashicons'] ? true : false );
        if ( !isset( $options['disable_emoji_support'] ) ) {
            $options['disable_emoji_support'] = false;
        }
        $options['disable_emoji_support'] = ( 'on' == $options['disable_emoji_support'] ? true : false );
        if ( !isset( $options['disable_jquery_migrate'] ) ) {
            $options['disable_jquery_migrate'] = false;
        }
        $options['disable_jquery_migrate'] = ( 'on' == $options['disable_jquery_migrate'] ? true : false );
        if ( !isset( $options['disable_block_widgets'] ) ) {
            $options['disable_block_widgets'] = false;
        }
        $options['disable_block_widgets'] = ( 'on' == $options['disable_block_widgets'] ? true : false );
        if ( !isset( $options['disable_lazy_load'] ) ) {
            $options['disable_lazy_load'] = false;
        }
        $options['disable_lazy_load'] = ( 'on' == $options['disable_lazy_load'] ? true : false );
        if ( !isset( $options['disable_application_passwords'] ) ) {
            $options['disable_application_passwords'] = false;
        }
        $options['disable_application_passwords'] = ( 'on' == $options['disable_application_passwords'] ? true : false );
        if ( !isset( $options['disable_site_admin_email_verification_screen'] ) ) {
            $options['disable_site_admin_email_verification_screen'] = false;
        }
        $options['disable_site_admin_email_verification_screen'] = ( 'on' == $options['disable_site_admin_email_verification_screen'] ? true : false );
        if ( !isset( $options['disable_plugin_theme_editor'] ) ) {
            $options['disable_plugin_theme_editor'] = false;
        }
        $options['disable_plugin_theme_editor'] = ( 'on' == $options['disable_plugin_theme_editor'] ? true : false );
        if ( !isset( $options['disable_user_email_notification_after_password_change'] ) ) {
            $options['disable_user_email_notification_after_password_change'] = false;
        }
        $options['disable_user_email_notification_after_password_change'] = ( 'on' == $options['disable_user_email_notification_after_password_change'] ? true : false );
        if ( !isset( $options['disable_admin_email_notification_after_password_change'] ) ) {
            $options['disable_admin_email_notification_after_password_change'] = false;
        }
        $options['disable_admin_email_notification_after_password_change'] = ( 'on' == $options['disable_admin_email_notification_after_password_change'] ? true : false );
        // =================================================================
        // SECURITY
        // =================================================================
        // Limit Login Attempts
        if ( !isset( $options['limit_login_attempts'] ) ) {
            $options['limit_login_attempts'] = false;
        }
        $options['limit_login_attempts'] = ( 'on' == $options['limit_login_attempts'] ? true : false );
        if ( !isset( $options['login_fails_allowed'] ) ) {
            $options['login_fails_allowed'] = 3;
        }
        $options['login_fails_allowed'] = ( !empty( $options['login_fails_allowed'] ) ? sanitize_text_field( $options['login_fails_allowed'] ) : 3 );
        if ( !isset( $options['login_lockout_maxcount'] ) ) {
            $options['login_lockout_maxcount'] = 3;
        }
        $options['login_lockout_maxcount'] = ( !empty( $options['login_lockout_maxcount'] ) ? sanitize_text_field( $options['login_lockout_maxcount'] ) : 3 );
        if ( !isset( $options['limit_login_attempts_header_override'] ) ) {
            $options['limit_login_attempts_header_override'] = '';
        }
        $options['limit_login_attempts_header_override'] = ( !empty( $options['limit_login_attempts_header_override'] ) ? sanitize_text_field( $options['limit_login_attempts_header_override'] ) : '' );
        if ( !isset( $options['login_attempts_log_table'] ) ) {
            $options['login_attempts_log_table'] = '';
        }
        $options['login_attempts_log_table'] = '';
        if ( !isset( $options['limit_login_attempts'] ) ) {
            $options['failed_login_attempts_log_schedule_cleanup_by_amount'] = false;
        }
        $options['failed_login_attempts_log_schedule_cleanup_by_amount'] = ( 'on' == $options['limit_login_attempts'] ? true : false );
        // Obfuscate Author Slugs
        if ( !isset( $options['obfuscate_author_slugs'] ) ) {
            $options['obfuscate_author_slugs'] = false;
        }
        $options['obfuscate_author_slugs'] = ( 'on' == $options['obfuscate_author_slugs'] ? true : false );
        // Obfuscate Email Address
        if ( !isset( $options['obfuscate_email_address'] ) ) {
            $options['obfuscate_email_address'] = false;
        }
        $options['obfuscate_email_address'] = ( 'on' == $options['obfuscate_email_address'] ? true : false );
        if ( !isset( $options['obfuscate_email_address_builder_safe_mode'] ) ) {
            $options['obfuscate_email_address_builder_safe_mode'] = false;
        }
        $options['obfuscate_email_address_builder_safe_mode'] = ( 'on' == $options['obfuscate_email_address_builder_safe_mode'] ? true : false );
        // Disable XML-RPC
        if ( !isset( $options['disable_xmlrpc'] ) ) {
            $options['disable_xmlrpc'] = false;
        }
        $options['disable_xmlrpc'] = ( 'on' == $options['disable_xmlrpc'] ? true : false );
        // =================================================================
        // OPTIMIZATIONS
        // =================================================================
        // Image Upload Control
        if ( !isset( $options['image_upload_control'] ) ) {
            $options['image_upload_control'] = false;
        }
        $options['image_upload_control'] = ( 'on' == $options['image_upload_control'] ? true : false );
        if ( !isset( $options['image_max_width'] ) ) {
            $options['image_max_width'] = 1920;
        }
        $options['image_max_width'] = ( !empty( $options['image_max_width'] ) ? sanitize_text_field( $options['image_max_width'] ) : 1920 );
        if ( !isset( $options['image_max_height'] ) ) {
            $options['image_max_height'] = 1920;
        }
        $options['image_max_height'] = ( !empty( $options['image_max_height'] ) ? sanitize_text_field( $options['image_max_height'] ) : 1920 );
        // Enable Revisions Control
        if ( !isset( $options['enable_revisions_control'] ) ) {
            $options['enable_revisions_control'] = false;
        }
        $options['enable_revisions_control'] = ( 'on' == $options['enable_revisions_control'] ? true : false );
        if ( !isset( $options['revisions_max_number'] ) ) {
            $options['revisions_max_number'] = 10;
        }
        $options['revisions_max_number'] = ( !empty( $options['revisions_max_number'] ) ? sanitize_text_field( $options['revisions_max_number'] ) : 10 );
        if ( is_array( $asenha_revisions_post_types ) ) {
            foreach ( $asenha_revisions_post_types as $post_type_slug => $post_type_label ) {
                // e.g. $post_type_slug is post,
                if ( !isset( $options['enable_revisions_control_for'][$post_type_slug] ) ) {
                    $options['enable_revisions_control_for'][$post_type_slug] = false;
                }
                $options['enable_revisions_control_for'][$post_type_slug] = ( 'on' == $options['enable_revisions_control_for'][$post_type_slug] ? true : false );
            }
        }
        // Enable Heartbeat Control
        if ( !isset( $options['enable_heartbeat_control'] ) ) {
            $options['enable_heartbeat_control'] = false;
        }
        $options['enable_heartbeat_control'] = ( 'on' == $options['enable_heartbeat_control'] ? true : false );
        if ( !isset( $options['heartbeat_control_for_admin_pages'] ) ) {
            $options['heartbeat_control_for_admin_pages'] = 'default';
        }
        if ( !isset( $options['heartbeat_control_for_post_edit'] ) ) {
            $options['heartbeat_control_for_post_edit'] = 'default';
        }
        if ( !isset( $options['heartbeat_control_for_frontend'] ) ) {
            $options['heartbeat_control_for_frontend'] = 'default';
        }
        if ( !isset( $options['heartbeat_interval_for_admin_pages'] ) ) {
            $options['heartbeat_interval_for_admin_pages'] = 60;
        }
        $options['heartbeat_interval_for_admin_pages'] = ( !empty( $options['heartbeat_interval_for_admin_pages'] ) ? sanitize_text_field( $options['heartbeat_interval_for_admin_pages'] ) : 60 );
        if ( !isset( $options['heartbeat_interval_for_post_edit'] ) ) {
            $options['heartbeat_interval_for_post_edit'] = 15;
        }
        $options['heartbeat_interval_for_post_edit'] = ( !empty( $options['heartbeat_interval_for_post_edit'] ) ? sanitize_text_field( $options['heartbeat_interval_for_post_edit'] ) : 15 );
        if ( !isset( $options['heartbeat_interval_for_frontend'] ) ) {
            $options['heartbeat_interval_for_frontend'] = 60;
        }
        $options['heartbeat_interval_for_frontend'] = ( !empty( $options['heartbeat_interval_for_frontend'] ) ? sanitize_text_field( $options['heartbeat_interval_for_frontend'] ) : 60 );
        // SMTP Email Delivery
        if ( !isset( $options['smtp_email_delivery'] ) ) {
            $options['smtp_email_delivery'] = false;
        }
        $options['smtp_email_delivery'] = ( 'on' == $options['smtp_email_delivery'] ? true : false );
        if ( !isset( $options['smtp_host'] ) ) {
            $options['smtp_host'] = '';
        }
        $options['smtp_host'] = ( !empty( $options['smtp_host'] ) ? sanitize_text_field( $options['smtp_host'] ) : '' );
        if ( !isset( $options['smtp_port'] ) ) {
            $options['smtp_port'] = '';
        }
        $options['smtp_port'] = ( !empty( $options['smtp_port'] ) ? $options['smtp_port'] : '' );
        if ( !isset( $options['smtp_security'] ) ) {
            $options['smtp_security'] = 'none';
        }
        $options['smtp_security'] = ( !empty( $options['smtp_security'] ) ? $options['smtp_security'] : 'none' );
        if ( !isset( $options['smtp_username'] ) ) {
            $options['smtp_username'] = '';
        }
        $options['smtp_username'] = ( !empty( $options['smtp_username'] ) ? sanitize_text_field( $options['smtp_username'] ) : '' );
        $existing_smtp_password = ( isset( $existing_options['smtp_password'] ) ? $existing_options['smtp_password'] : '' );
        $submitted_smtp_password = ( isset( $options['smtp_password'] ) ? (string) $options['smtp_password'] : '' );
        $reject_submitted_ciphertext = !empty( $submitted_smtp_password ) && method_exists( $email_delivery, 'is_probable_smtp_ciphertext' ) && $email_delivery->is_probable_smtp_ciphertext( $submitted_smtp_password );
        if ( !empty( $submitted_smtp_password ) && !$reject_submitted_ciphertext ) {
            $encrypted_smtp_password = \asenha_encrypt_smtp_password_compat( $email_delivery, $submitted_smtp_password );
            $options['smtp_password'] = ( !empty( $encrypted_smtp_password ) ? $encrypted_smtp_password : $existing_smtp_password );
        } elseif ( $reject_submitted_ciphertext ) {
            $options['smtp_password'] = $existing_smtp_password;
        } else {
            $existing_smtp_password_status = \asenha_get_smtp_password_status_compat( $existing_smtp_password );
            $existing_is_probable_ciphertext = method_exists( $email_delivery, 'is_probable_smtp_ciphertext' ) && $email_delivery->is_probable_smtp_ciphertext( $existing_smtp_password );
            if ( 'legacy_plaintext' === $existing_smtp_password_status && !$existing_is_probable_ciphertext ) {
                $encrypted_smtp_password = \asenha_encrypt_smtp_password_compat( $email_delivery, $existing_smtp_password );
                $options['smtp_password'] = ( !empty( $encrypted_smtp_password ) ? $encrypted_smtp_password : $existing_smtp_password );
            } else {
                $options['smtp_password'] = $existing_smtp_password;
            }
        }
        $saved_smtp_password_status = \asenha_get_smtp_password_status_compat( $options['smtp_password'] );
        if ( 'encrypted_valid' === $saved_smtp_password_status ) {
            $email_delivery->clear_smtp_password_unavailable_flag();
        }
        if ( empty( $options['smtp_email_delivery'] ) || isset( $options['smtp_authentication'] ) && 'enable' !== $options['smtp_authentication'] ) {
            $email_delivery->clear_smtp_password_unavailable_flag();
        }
        if ( !isset( $options['smtp_default_from_name'] ) ) {
            $options['smtp_default_from_name'] = '';
        }
        $options['smtp_default_from_name'] = ( !empty( $options['smtp_default_from_name'] ) ? sanitize_text_field( $options['smtp_default_from_name'] ) : '' );
        if ( !isset( $options['smtp_default_from_email'] ) ) {
            $options['smtp_default_from_email'] = '';
        }
        $options['smtp_default_from_email'] = ( !empty( $options['smtp_default_from_email'] ) ? sanitize_text_field( $options['smtp_default_from_email'] ) : '' );
        if ( !isset( $options['smtp_default_from_description'] ) ) {
            $options['smtp_default_from_description'] = '';
        }
        if ( !isset( $options['smtp_force_from'] ) ) {
            $options['smtp_force_from'] = false;
        }
        $options['smtp_force_from'] = ( 'on' == $options['smtp_force_from'] ? true : false );
        if ( !isset( $options['smtp_bypass_ssl_verification'] ) ) {
            $options['smtp_bypass_ssl_verification'] = false;
        }
        $options['smtp_bypass_ssl_verification'] = ( 'on' == $options['smtp_bypass_ssl_verification'] ? true : false );
        if ( !isset( $options['smtp_debug'] ) ) {
            $options['smtp_debug'] = false;
        }
        $options['smtp_debug'] = ( 'on' == $options['smtp_debug'] ? true : false );
        // Multiple User Roles
        if ( !isset( $options['multiple_user_roles'] ) ) {
            $options['multiple_user_roles'] = false;
        }
        $options['multiple_user_roles'] = ( 'on' == $options['multiple_user_roles'] ? true : false );
        // Image Sizes Panel
        if ( !isset( $options['image_sizes_panel'] ) ) {
            $options['image_sizes_panel'] = false;
        }
        $options['image_sizes_panel'] = ( 'on' == $options['image_sizes_panel'] ? true : false );
        // View Admin as Role
        if ( !isset( $options['view_admin_as_role'] ) ) {
            $options['view_admin_as_role'] = false;
        }
        $options['view_admin_as_role'] = ( 'on' == $options['view_admin_as_role'] ? true : false );
        // Enable Password Protection
        if ( !isset( $options['enable_password_protection'] ) ) {
            $options['enable_password_protection'] = false;
        }
        $options['enable_password_protection'] = ( 'on' == $options['enable_password_protection'] ? true : false );
        if ( !isset( $options['password_protection_password'] ) ) {
            $options['password_protection_password'] = 'secret';
        }
        $options['password_protection_password'] = ( !empty( $options['password_protection_password'] ) ? $options['password_protection_password'] : 'secret' );
        // Maintenance Mode
        $maintenance_mode_was_enabled = !empty( $existing_options['maintenance_mode'] );
        if ( !isset( $options['maintenance_mode'] ) ) {
            $options['maintenance_mode'] = false;
        }
        $options['maintenance_mode'] = ( 'on' == $options['maintenance_mode'] ? true : false );
        $maintenance_mode_just_enabled = $options['maintenance_mode'] && !$maintenance_mode_was_enabled;
        if ( $options['maintenance_mode'] ) {
            if ( empty( $options['maintenance_mode_bypass_key'] ) || $maintenance_mode_just_enabled ) {
                $options['maintenance_mode_bypass_key'] = wp_hash_password( site_url() );
            }
        } else {
            $options['maintenance_mode_bypass_key'] = '';
        }
        if ( !isset( $options['maintenance_page_heading'] ) ) {
            $options['maintenance_page_heading'] = 'We\'ll be back soon.';
        }
        $options['maintenance_page_heading'] = ( !empty( $options['maintenance_page_heading'] ) ? sanitize_text_field( $options['maintenance_page_heading'] ) : 'We\'ll be back soon.' );
        if ( !isset( $options['maintenance_page_description'] ) ) {
            $options['maintenance_page_description'] = 'This site is undergoing maintenance for an extended period today. Thanks for your patience.';
        }
        $options['maintenance_page_description'] = ( !empty( $options['maintenance_page_description'] ) ? sanitize_text_field( $options['maintenance_page_description'] ) : 'This site is undergoing maintenance for an extended period today. Thanks for your patience.' );
        if ( !isset( $options['maintenance_page_background'] ) ) {
            $options['maintenance_page_background'] = 'stripes';
        }
        $options['maintenance_page_background'] = ( !empty( $options['maintenance_page_background'] ) ? $options['maintenance_page_background'] : 'stripes' );
        if ( !isset( $options['maintenance_mode_description'] ) ) {
            $options['maintenance_mode_description'] = '';
        }
        // Redirect 404 to Homepage
        if ( !isset( $options['redirect_404_to_homepage'] ) ) {
            $options['redirect_404_to_homepage'] = false;
        }
        $options['redirect_404_to_homepage'] = ( 'on' == $options['redirect_404_to_homepage'] ? true : false );
        // Show System Summary in At a Glance Dashboard Widget
        if ( !isset( $options['display_system_summary'] ) ) {
            $options['display_system_summary'] = false;
        }
        $options['display_system_summary'] = ( 'on' == $options['display_system_summary'] ? true : false );
        // Search Engines Visibility Status
        if ( !isset( $options['search_engine_visibility_status'] ) ) {
            $options['search_engine_visibility_status'] = false;
        }
        $options['search_engine_visibility_status'] = ( 'on' == $options['search_engine_visibility_status'] ? true : false );
        return $options;
    }

    /**
     * Sanitize checkbox field. For reference purpose. Not currently in use.
     *
     * @since 1.0.0
     */
    function asenha_sanitize_checkbox_field( $value ) {
        // A checked checkbox field will originally be saved as an 'on' value in the option. We transform that into true (shown as 1) or false (shown as empty value)
        return ( 'on' === $value ? true : false );
    }

}