<?php
/**
 * Uninstall cleanup for Admin Buddy.
 *
 * Defines the cleanup callback used by both build flavours:
 *  - Pro: registered via admbud_fs()->add_action( 'after_uninstall', ... )
 *  - Free: registered via register_uninstall_hook( __FILE__, ... )
 *
 * The function is no-op safe to call multiple times.
 *
 * @package Admbud
 */

defined( 'ABSPATH' ) || exit;

/**
 * Recursively delete a directory and all its contents.
 *
 * @param string $dir Absolute directory path.
 */
function admbud_uninstall_rmdir( string $dir ): void {
    if ( ! is_dir( $dir ) ) { return; }
    $items = scandir( $dir );
    if ( ! is_array( $items ) ) { return; }
    foreach ( $items as $item ) {
        if ( $item === '.' || $item === '..' ) { continue; }
        $path = $dir . '/' . $item;
        if ( is_dir( $path ) ) {
            admbud_uninstall_rmdir( $path );
        } else {
            wp_delete_file( $path );
        }
    }
    global $wp_filesystem;
    if ( ! $wp_filesystem ) {
        require_once ABSPATH . 'wp-admin/includes/file.php';
        WP_Filesystem();
    }
    $wp_filesystem->rmdir( $dir );
}

/**
 * Per-site cleanup: delete options, upload files, and tables.
 * On multisite this is called for every subsite in the network.
 *
 * @param array $option_keys List of option keys to delete.
 */
function admbud_uninstall_site( array $option_keys ): void {
    global $wpdb;

    foreach ( $option_keys as $key ) {
        delete_option( $key );
    }

    // Per-user notice dismissal flags for this site.
    $wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
        "DELETE FROM {$wpdb->options} WHERE option_name LIKE 'admbud_ms_notice_dismissed_%'"
    );

    // Admin Buddy uploads directory (snippets + blueprints).
    $uploads = trailingslashit( wp_upload_dir()['basedir'] ) . 'admin-buddy';
    if ( is_dir( $uploads ) ) {
        admbud_uninstall_rmdir( $uploads );
    }
    // Legacy: remove old ab-snippets directory if it still exists.
    $legacy_snippets = trailingslashit( wp_upload_dir()['basedir'] ) . 'ab-snippets';
    if ( is_dir( $legacy_snippets ) ) {
        admbud_uninstall_rmdir( $legacy_snippets );
    }

    // Drop custom tables for this site.
    $wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}admbud_svg_icons" );    // phpcs:ignore
    $wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}admbud_activity_log" ); // phpcs:ignore
}

/**
 * Main uninstall cleanup. Idempotent.
 */
function admbud_uninstall_cleanup(): void {
    global $wpdb;

    $option_keys = [
        // White Label - Branding
        'admbud_core_remove_logo', 'admbud_core_remove_help', 'admbud_core_remove_screen_options',
        'admbud_core_custom_footer_enabled', 'admbud_core_custom_footer_text',
        'admbud_wl_sidebar_logo_url', 'admbud_wl_sidebar_logo_width', 'admbud_wl_sidebar_logo_height', 'admbud_wl_sidebar_width',
        'admbud_wl_favicon_id',
        'admbud_wl_agency_name', 'admbud_wl_agency_url', 'admbud_wl_greeting',
        'admbud_wl_remove_wp_links', 'admbud_wl_footer_version', 'admbud_wl_footer_quote',
        // White Label - Dashboard
        'admbud_dashboard_role_pages', 'admbud_dashboard_keep_widgets', 'admbud_dashboard_custom_widgets',
        'admbud_wl_hide_wp_news',
        // White Label - Notices & Updates
        'admbud_notices_suppress', 'admbud_modules_enabled_tabs',
        'admbud_wl_hide_core_update', 'admbud_wl_hide_plugin_update', 'admbud_wl_hide_theme_update', 'admbud_wl_hide_php_nag',
        'admbud_wl_update_policy', 'admbud_wl_disable_update_emails', 'admbud_wl_disable_all_updates',
        // Colours
        'admbud_colours_primary', 'admbud_colours_secondary',
        'admbud_colours_menu_text', 'admbud_colours_menu_bg', 'admbud_colours_menu_item_sep',
        'admbud_colours_sidebar_gradient', 'admbud_colours_sidebar_grad_dir',
        'admbud_colours_sidebar_grad_from', 'admbud_colours_sidebar_grad_to',
        'admbud_colours_active_text', 'admbud_colours_sep_color', 'admbud_colours_body_bg',
        'admbud_colours_adminbar_bg', 'admbud_colours_adminbar_text',
        'admbud_colours_adminbar_hover_bg', 'admbud_colours_adminbar_submenu_bg',
        'admbud_colours_adminbar_hover_text', 'admbud_colours_adminbar_sub_text',
        'admbud_colours_adminbar_sub_hover_text', 'admbud_colours_adminbar_sub_hover_bg',
        'admbud_colours_pill_maintenance', 'admbud_colours_pill_coming_soon', 'admbud_colours_pill_noindex',
        'admbud_colours_pill_admin_buddy',
        'admbud_colours_submenu_text', 'admbud_colours_hover_text', 'admbud_colours_active_parent_text',
        'admbud_colours_submenu_bg', 'admbud_colours_submenu_hover_bg', 'admbud_colours_submenu_hover_text',
        'admbud_colours_shadow_colour',
        // Content area tokens
        'admbud_colours_content_heading', 'admbud_colours_content_text', 'admbud_colours_content_link', 'admbud_colours_content_link_hover',
        'admbud_colours_table_header_bg', 'admbud_colours_table_header_text',
        'admbud_colours_table_row_bg', 'admbud_colours_table_row_text', 'admbud_colours_table_row_alt_bg', 'admbud_colours_table_row_alt_text',
        'admbud_colours_table_row_hover', 'admbud_colours_table_border', 'admbud_colours_table_row_separator', 'admbud_colours_table_action_link',
        'admbud_colours_input_bg', 'admbud_colours_input_border', 'admbud_colours_input_focus',
        'admbud_colours_btn_primary_bg', 'admbud_colours_btn_primary_text', 'admbud_colours_btn_primary_hover', 'admbud_colours_btn_secondary_bg',
        'admbud_colours_postbox_bg', 'admbud_colours_postbox_header_bg', 'admbud_colours_postbox_border', 'admbud_colours_postbox_text', 'admbud_colours_notice_bg',
        'admbud_colours_ui_radius',
        // CSS Exclusions
        'admbud_css_exclusions',
        // Colours - opacity
        'admbud_colours_menu_bg_opacity', 'admbud_colours_menu_text_opacity',
        // Login
        'admbud_login_logo_url', 'admbud_login_logo_width', 'admbud_login_logo_height',
        'admbud_login_card_position', 'admbud_login_bg_type', 'admbud_login_bg_color',
        'admbud_login_grad_from', 'admbud_login_grad_to', 'admbud_login_grad_direction',
        'admbud_login_bg_image_url', 'admbud_login_bg_overlay_color', 'admbud_login_bg_overlay_opacity',
        // Maintenance
        'admbud_maintenance_mode', 'admbud_maintenance_token', 'admbud_emergency_token',
        'admbud_coming_soon_title', 'admbud_coming_soon_message', 'admbud_coming_soon_bg_color',
        'admbud_cs_bg_type', 'admbud_cs_bg_color', 'admbud_cs_grad_from', 'admbud_cs_grad_to',
        'admbud_cs_grad_direction', 'admbud_cs_bg_image_url',
        'admbud_cs_bg_overlay_color', 'admbud_cs_bg_overlay_opacity',
        'admbud_cs_text_color', 'admbud_cs_message_color',
        'admbud_maintenance_title', 'admbud_maintenance_message', 'admbud_maintenance_bg_color',
        'admbud_maint_bg_type', 'admbud_maint_bg_color', 'admbud_maint_grad_from', 'admbud_maint_grad_to',
        'admbud_maint_grad_direction', 'admbud_maint_bg_image_url',
        'admbud_maint_bg_overlay_color', 'admbud_maint_bg_overlay_opacity',
        'admbud_maint_text_color', 'admbud_maint_message_color',
        'admbud_maintenance_bypass_urls',
        // SMTP (all keys including credentials)
        'admbud_smtp_enabled', 'admbud_smtp_mailer', 'admbud_smtp_host', 'admbud_smtp_port',
        'admbud_smtp_username', 'admbud_smtp_password', 'admbud_smtp_password_enc', 'admbud_smtp_key_salt',
        'admbud_smtp_encryption', 'admbud_smtp_auth',
        'admbud_smtp_from_name', 'admbud_smtp_from_email',
        'admbud_smtp_fallback', 'admbud_smtp_disable_ssl_verify', 'admbud_smtp_preset',
        'admbud_smtp_log',
        // SVG Icon Library (legacy option)
        'admbud_svg_icons',
        // Menu Customiser
        'admbud_menu_config', 'admbud_menu_show_item_borders',
        // Custom Pages
        'admbud_custom_pages',
        // Bricks Builder
        'admbud_bricks_enabled', 'admbud_bricks_hide_logo', 'admbud_bricks_hide_spinner',
        'admbud_bricks_builder_bg', 'admbud_bricks_builder_bg_2', 'admbud_bricks_builder_bg_3',
        'admbud_bricks_builder_bg_accent', 'admbud_bricks_builder_color',
        'admbud_bricks_builder_color_description', 'admbud_bricks_builder_color_accent',
        'admbud_bricks_builder_color_accent_inverse', 'admbud_bricks_builder_color_knob',
        'admbud_bricks_builder_border_color', 'admbud_bricks_bricks_tooltip_bg',
        'admbud_bricks_bricks_tooltip_text',
        // Placement + UI options
        'admbud_show_in_adminbar',
        // Roles
        'admbud_roles_last_backup',
        // Upgrade tracking
        'admbud_db_version', 'admbud_snippets_table_version', 'admbud_snippets_migrated_to_files',
        // Source
        'admbud_source_enabled', 'admbud_source_slug', 'admbud_source_key', 'admbud_source_modules', 'admbud_source_whitelist', 'admbud_source_allow_any', 'admbud_source_log',
        // Receiver
        'admbud_receiver_sources',
        // Activity Log
        'admbud_activity_log_retention', 'admbud_activity_log_per_page', 'admbud_activity_log_version', 'admbud_colours_css_version',
        // Quick Settings
        'admbud_qs_disable_emoji', 'admbud_qs_disable_jquery_migrate',
        'admbud_qs_remove_feed_links', 'admbud_qs_remove_rsd', 'admbud_qs_remove_wlw',
        'admbud_qs_remove_shortlink', 'admbud_qs_remove_restapi_link', 'admbud_qs_disable_embeds', 'admbud_qs_remove_version',
        'admbud_qs_disable_xmlrpc', 'admbud_qs_disable_rest_api', 'admbud_qs_disable_file_edit',
        'admbud_qs_disable_feeds', 'admbud_qs_disable_self_ping', 'admbud_qs_disable_comments_default', 'admbud_qs_duplicate_post', 'admbud_qs_user_last_seen', 'admbud_qs_allow_svg', 'admbud_qs_svg_roles',
        // Colour keys missing from original list
        'admbud_colours_table_header_link', 'admbud_colours_table_title_link',
        // Option Pages - definition store
        'admbud_option_pages',
        // Collections - definition store
        'admbud_collections',
    ];

    if ( is_multisite() ) {
        $sites = get_sites( [ 'number' => 0, 'fields' => 'ids' ] );
        foreach ( $sites as $site_id ) {
            switch_to_blog( $site_id );
            admbud_uninstall_site( $option_keys );
            restore_current_blog();
        }
        // Network-level options.
        foreach ( $option_keys as $key ) {
            delete_site_option( $key );
        }
    } else {
        admbud_uninstall_site( $option_keys );
    }

    // Plugin-owned transients.
    delete_transient( 'admbud_notices_plugin_callbacks' );
    delete_transient( 'admbud_dashboard_widget_catalogue' );
    delete_transient( 'admbud_snippets_safe_mode' );
    delete_transient( 'admbud_activation_redirect' );
    delete_transient( 'admbud_colours_css_cache' );
    $wpdb->query( "DELETE FROM {$wpdb->options} WHERE option_name LIKE '_transient_admbud_colours_css_%' OR option_name LIKE '_transient_timeout_admbud_colours_css_%'" ); // phpcs:ignore

    // Option Pages field values (admbud_op_{slug}_{key} pattern).
    $wpdb->query( $wpdb->prepare( // phpcs:ignore WordPress.DB.DirectDatabaseQuery, WordPress.DB
        "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s",
        $wpdb->esc_like( 'admbud_op_' ) . '%'
    ) );

    // Demo Data post/user/term meta.
    $wpdb->delete( $wpdb->usermeta, [ 'meta_key' => 'admbud_last_seen'  ] ); // phpcs:ignore WordPress.DB

    // Remove Admin Buddy custom capabilities from all roles.
    global $wp_roles;
    if ( ! isset( $wp_roles ) ) {
        $wp_roles = new WP_Roles();
    }
    foreach ( array_keys( $wp_roles->roles ) as $role_name ) {
        $role = get_role( $role_name );
        if ( $role ) {
            $role->remove_cap( 'admbud_manage_roles' );
            $role->remove_cap( 'admbud_manage_snippets' );
        }
    }

    // Clear scheduled cron events.
    wp_clear_scheduled_hook( 'admbud_activity_log_prune' );

    // Allow add-ons to hook in.
    do_action( 'admbud_uninstall' );

}