<?php
/**
 * AI Guidance Files admin screen: quality audit engine, settings-page
 * rendering, and the two admin-post save/audit handlers.
 *
 * Split out of AI_O_Optimiser_LLMS (class-ai-o-optimiser-llms.php) so that admin-only code —
 * roughly half of what used to be one class — no longer has to be parsed on
 * every single front-end request. This class is loaded only in admin/cron
 * contexts (see ai_o_optimiser_guidance_load_system_classes() in
 * modules/guidance/bootstrap.php), the same lazy-loading tier System Check
 * and Environment Check already use. It extends AI_O_Optimiser_LLMS to reuse the
 * matching/generation logic without duplicating it.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class AI_O_Optimiser_LLMS_Admin extends AI_O_Optimiser_LLMS {

	const AUDIT_OPTION = 'ai_o_optimiser_llms_audit_cache';

	public function __construct() {
		add_action( 'admin_post_ai_o_optimiser_save_llms', array( $this, 'handle_save_settings' ) );
		add_action( 'admin_post_ai_o_optimiser_run_llms_audit', array( $this, 'handle_run_audit' ) );
	}

	/**
	 * Return labels for public post types.
	 *
	 * @return array slug => label
	 */
	private static function public_post_type_options() {
		$objects = get_post_types( array( 'public' => true ), 'objects' );
		unset( $objects['attachment'] );
		$options = array();
		foreach ( $objects as $slug => $object ) {
			$options[ $slug ] = ! empty( $object->labels->name ) ? $object->labels->name : $slug;
		}
		return $options;
	}

	/**
	 * Return the cached audit, or an empty report if the audit has not run yet.
	 *
	 * @return array
	 */
	public static function audit() {
		$audit = get_option( self::AUDIT_OPTION, array() );
		if ( empty( $audit ) || ! is_array( $audit ) ) {
			return self::empty_audit();
		}

		$audit = wp_parse_args( $audit, self::empty_audit() );
		if ( empty( $audit['files'] ) || ! is_array( $audit['files'] ) ) {
			$audit['files'] = array();
		}

		return $audit;
	}

	/**
	 * Empty audit payload.
	 *
	 * @return array
	 */
	private static function empty_audit() {
		$urls     = self::guidance_urls();
		$settings = self::settings();
		return array(
			'checked_at'                    => '',
			'rank_math_active'              => self::is_rank_math_active(),
			'rank_math_header_fix_enabled'  => ! empty( $settings['llms_rank_math_header_fix'] ),
			'overall_status'   => 'not_checked',
			'files'            => array(
				'llms_txt' => array(
					'label'    => 'llms.txt',
					'url'      => $urls['llms_txt'],
					'required' => true,
					'status'   => 'not_checked',
				),
			),
		);
	}

	/**
	 * Run a fresh audit against the live files and cache the result.
	 *
	 * @return array
	 */
	public static function run_audit() {
		$settings = self::settings();
		$urls     = self::guidance_urls();
		$files    = array(
			'llms_txt' => array(
				'label'    => 'llms.txt',
				'url'      => $urls['llms_txt'],
				'required' => true,
				'full'     => false,
			),
		);

		if ( ! empty( $settings['llms_audit_check_full'] ) || ! empty( $settings['llms_generate_full'] ) ) {
			$files['llms_full_txt'] = array(
				'label'    => 'llms-full.txt',
				'url'      => $urls['llms_full_txt'],
				'required' => ! empty( $settings['llms_generate_full'] ),
				'full'     => true,
			);
		}

		$warnings = 0;
		$failures = 0;
		foreach ( $files as $key => $file ) {
			$files[ $key ] = self::audit_file( $file, $settings );
			if ( 'fail' === $files[ $key ]['status'] ) {
				$failures++;
			} elseif ( 'warning' === $files[ $key ]['status'] ) {
				$warnings++;
			}
		}

		$overall = 'pass';
		if ( $failures > 0 ) {
			$overall = 'fail';
		} elseif ( $warnings > 0 ) {
			$overall = 'warning';
		}

		$audit = array(
			'checked_at'                    => current_time( 'mysql', true ),
			'rank_math_active'              => self::is_rank_math_active(),
			'rank_math_header_fix_enabled'  => ! empty( $settings['llms_rank_math_header_fix'] ),
			'overall_status'                => $overall,
			'files'            => $files,
			'version'          => AI_O_Optimiser_VERSION,
		);

		update_option( self::AUDIT_OPTION, $audit, false );
		return $audit;
	}

	/**
	 * Audit one guidance file URL.
	 *
	 * @param array $file File definition.
	 * @param array $settings Plugin settings.
	 * @return array
	 */
	/**
	 * Who published the file that is actually live.
	 *
	 * Until 1.32.0 the generated files ended with a line naming this plugin.
	 * That line sat in public output on the site owner's own domain, which they
	 * never opted into, and it answered the question badly anyway: a footer in a
	 * machine-readable file is not where somebody looks when they are working out
	 * why llms.txt says something unexpected.
	 *
	 * This answers it where the question is actually asked, on the screen that
	 * already fetches the live file -- and answers it better, because comparing
	 * the published bytes to what this plugin would generate can also say when
	 * something else is serving the file. On a site running another plugin that
	 * writes llms.txt, that is the fact worth knowing.
	 *
	 * @param string $body     The fetched file.
	 * @param array  $file     File definition, including whether it is the full variant.
	 * @param array  $settings Plugin settings.
	 * @return string ours|differs|not_generating
	 */
	private static function identify_generator( $body, $file, $settings ) {
		if ( empty( $settings['llms_generate_enabled'] ) ) {
			return 'not_generating';
		}

		$ours = AI_O_Optimiser_LLMS::generate_guidance_content( ! empty( $file['full'] ), $settings );

		return trim( self::normalise_line_endings( $body ) ) === trim( self::normalise_line_endings( $ours ) )
			? 'ours'
			: 'differs';
	}

	private static function audit_file( $file, $settings ) {
		$result = array(
			'label'            => $file['label'],
			'url'              => $file['url'],
			'required'         => ! empty( $file['required'] ),
			'status'           => 'not_checked',
			'http_code'        => 0,
			'content_type'     => '',
			'x_robots_tag'     => '',
			'bytes'            => 0,
			'words'            => 0,
			'links'            => 0,
			'internal_links'   => 0,
			'duplicate_links'  => 0,
			'checked_links'    => 0,
			'broken_links'     => array(),
			'noindex_links'    => array(),
			'privateish_links' => array(),
			'warnings'         => array(),
			'notes'            => array(),
			'snippet'          => '',
			'generator'        => 'unknown',
		);

		$fetched = AI_O_Optimiser_HTTP::get_with_fallback(
			$file['url'],
			array(
				'timeout'     => 8,
				'redirection' => 3,
				'headers'     => array(
					'Accept' => 'text/plain,text/markdown,text/*,*/*;q=0.8',
				),
			),
			'identified',
			'llms.txt Audit'
		);
		$response = $fetched['response'];

		if ( is_wp_error( $response ) ) {
			$result['status']     = ! empty( $file['required'] ) ? 'fail' : 'warning';
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( 'Could not fetch %1$s: %2$s', 'ai-o-optimiser' ), $file['label'], $response->get_error_message() );
			return $result;
		}

		if ( ! empty( $fetched['recovered'] ) ) {
			$result['warnings'][] = AI_O_Optimiser_HTTP::edge_block_note( $fetched['primary_code'], 'identified' );
		}

		$code         = (int) wp_remote_retrieve_response_code( $response );
		$content_type = wp_remote_retrieve_header( $response, 'content-type' );
		$x_robots     = wp_remote_retrieve_header( $response, 'x-robots-tag' );
		$body         = (string) wp_remote_retrieve_body( $response );

		$result['http_code']    = $code;
		$result['content_type'] = is_array( $content_type ) ? implode( ', ', $content_type ) : (string) $content_type;
		$result['x_robots_tag'] = is_array( $x_robots ) ? implode( ', ', $x_robots ) : (string) $x_robots;
		$result['bytes']        = strlen( $body );
		$result['snippet']      = self::safe_substr( self::normalise_line_endings( $body ), 0, 1500 );

		if ( 200 !== $code ) {
			if ( ! empty( $file['required'] ) ) {
				$result['status']     = 'fail';
				$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
					__( '%1$s returned HTTP %2$d. The root file should return 200 OK.', 'ai-o-optimiser' ), $file['label'], $code );
			} else {
				$result['status']  = 'pass';
				$result['notes'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
					__( '%1$s is optional and returned HTTP %2$d.', 'ai-o-optimiser' ), $file['label'], $code );
			}
			return $result;
		}

		self::analyse_headers( $result );
		$result['generator'] = self::identify_generator( $body, $file, $settings );

		self::analyse_content( $result, $body, $settings );

		if ( ! empty( $result['warnings'] ) ) {
			$result['status'] = 'warning';
		} else {
			$result['status'] = 'pass';
		}

		return $result;
	}


	/**
	 * Analyse HTTP response headers for guidance-file crawler usefulness.
	 *
	 * @param array $result Audit result, passed by reference.
	 */
	private static function analyse_headers( &$result ) {
		$x_robots = isset( $result['x_robots_tag'] ) ? strtolower( (string) $result['x_robots_tag'] ) : '';

		if ( '' === $x_robots ) {
			$result['notes'][] = __( 'No X-Robots-Tag header was found. For llms.txt, consider noindex without nofollow so the file does not appear in SERPs while its links remain usable.', 'ai-o-optimiser' );
			return;
		}

		if ( false !== strpos( $x_robots, 'nofollow' ) || preg_match( '/(^|[,\s])none([,\s]|$)/i', $x_robots ) ) {
			$result['warnings'][] = __( 'X-Robots-Tag contains nofollow/none. llms.txt should not block link following; use noindex without nofollow if you do not want the file indexed.', 'ai-o-optimiser' );
			return;
		}

		if ( false !== strpos( $x_robots, 'noindex' ) ) {
			$result['notes'][] = __( 'X-Robots-Tag noindex detected without nofollow. This keeps the guidance file out of SERPs while preserving link discovery.', 'ai-o-optimiser' );
		}
	}

	/**
	 * Analyse Markdown/text body quality.
	 *
	 * @param array  $result Audit result, passed by reference.
	 * @param string $body File content.
	 * @param array  $settings Plugin settings.
	 */
	private static function analyse_content( &$result, $body, $settings ) {
		$body      = self::normalise_line_endings( $body );
		$plain     = wp_strip_all_tags( $body );
		$max_bytes = max( 10000, (int) $settings['llms_audit_max_bytes'] );
		$min_links = max( 0, (int) $settings['llms_audit_min_links'] );
		$max_links = max( 1, (int) $settings['llms_audit_max_links'] );

		$result['words'] = str_word_count( $plain );

		preg_match_all( '/\[[^\]]+\]\(([^\)\s]+)(?:\s+"[^"]*")?\)/i', $body, $markdown_matches );
		$links = array();
		if ( ! empty( $markdown_matches[1] ) ) {
			foreach ( $markdown_matches[1] as $url ) {
				$links[] = html_entity_decode( trim( $url ), ENT_QUOTES, get_bloginfo( 'charset' ) );
			}
		}

		preg_match_all( '/(?<!\()https?:\/\/[^\s<>)"\']+/i', $body, $raw_matches );
		if ( ! empty( $raw_matches[0] ) ) {
			foreach ( $raw_matches[0] as $url ) {
				$links[] = html_entity_decode( rtrim( trim( $url ), '.,;' ), ENT_QUOTES, get_bloginfo( 'charset' ) );
			}
		}

		$links = array_values( array_filter( array_map( 'esc_url_raw', $links ) ) );
		$unique_links = array_values( array_unique( $links ) );

		$result['links']           = count( $links );
		$result['duplicate_links'] = max( 0, count( $links ) - count( $unique_links ) );

		$home_host = wp_parse_url( home_url(), PHP_URL_HOST );
		$internal  = array();
		foreach ( $unique_links as $url ) {
			$host = wp_parse_url( $url, PHP_URL_HOST );
			if ( $home_host && $host && strtolower( $home_host ) === strtolower( $host ) ) {
				$internal[] = $url;
			}
		}
		$result['internal_links'] = count( $internal );

		if ( '' === trim( $body ) || $result['bytes'] < 50 ) {
			$result['warnings'][] = __( 'The file is empty or extremely thin.', 'ai-o-optimiser' );
		}
		if ( $result['bytes'] > $max_bytes && 'llms.txt' === $result['label'] ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( 'The file is larger than %s. Keep llms.txt concise and use llms-full.txt for expanded content.', 'ai-o-optimiser' ), size_format( $max_bytes ) );
		}
		if ( ! preg_match( '/^#\s+.+/m', $body ) ) {
			$result['warnings'][] = __( 'No top-level Markdown heading was found. Add a clear # Site Name heading.', 'ai-o-optimiser' );
		}
		if ( false !== stripos( $body, '<!doctype' ) || false !== stripos( $body, '<html' ) ) {
			$result['warnings'][] = __( 'The response looks like HTML, not a Markdown/text llms.txt file.', 'ai-o-optimiser' );
		}
		if ( $min_links > 0 && count( $unique_links ) < $min_links ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( 'Only %1$d unique link(s) found. Recommended minimum is %2$d for useful AI discovery.', 'ai-o-optimiser' ), count( $unique_links ), $min_links );
		}
		if ( $result['duplicate_links'] > 0 ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( '%d duplicate link reference(s) found.', 'ai-o-optimiser' ), $result['duplicate_links'] );
		}
		if ( $result['content_type'] && ! preg_match( '/text\/(plain|markdown|x-markdown|md|html)|application\/octet-stream/i', $result['content_type'] ) ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( 'Unexpected Content-Type: %s.', 'ai-o-optimiser' ), $result['content_type'] );
		}

		foreach ( $internal as $url ) {
			if ( self::looks_private_or_admin_url( $url ) ) {
				$result['privateish_links'][] = $url;
			}

			$post_id = url_to_postid( $url );
			if ( $post_id && self::post_has_noindex( $post_id ) ) {
				$result['noindex_links'][] = $url;
			}
		}

		if ( ! empty( $result['privateish_links'] ) ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( '%d admin, preview, login or non-public looking internal URL(s) found.', 'ai-o-optimiser' ), count( $result['privateish_links'] ) );
		}
		if ( ! empty( $result['noindex_links'] ) ) {
			$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
				__( '%d internal URL(s) appear to be noindex in WordPress SEO metadata.', 'ai-o-optimiser' ), count( $result['noindex_links'] ) );
		}

		if ( ! empty( $settings['llms_audit_check_links'] ) && ! empty( $internal ) ) {
			$to_check = array_slice( $internal, 0, $max_links );
			foreach ( $to_check as $url ) {
				$result['checked_links']++;
				$check = self::check_link_status( $url );
				if ( $check['code'] >= 400 || 0 === $check['code'] ) {
					$result['broken_links'][] = array(
						'url'     => $url,
						'code'    => $check['code'],
						'message' => $check['message'],
					);
				}
			}
			if ( ! empty( $result['broken_links'] ) ) {
				$result['warnings'][] = sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
					__( '%d checked internal link(s) returned an error status.', 'ai-o-optimiser' ), count( $result['broken_links'] ) );
			}
		}
	}

	/**
	 * Check one link via HEAD, falling back to GET where needed.
	 *
	 * @param string $url URL to check.
	 * @return array code/message.
	 */
	private static function check_link_status( $url ) {
		$args = array(
			'timeout'     => 5,
			'redirection' => 3,
			'headers'     => array(),
		);

		$response = wp_safe_remote_head( $url, AI_O_Optimiser_HTTP::profile_args( $args, 'identified', 'llms.txt Link Check' ) );
		if ( is_wp_error( $response ) ) {
			return array( 'code' => 0, 'message' => $response->get_error_message() );
		}

		$code = (int) wp_remote_retrieve_response_code( $response );
		if ( 405 === $code ) {
			// Server rejects HEAD; try a normal GET with the same identity.
			$response = wp_safe_remote_get( $url, AI_O_Optimiser_HTTP::profile_args( $args, 'identified', 'llms.txt Link Check' ) );
			if ( is_wp_error( $response ) ) {
				return array( 'code' => 0, 'message' => $response->get_error_message() );
			}
			$code = (int) wp_remote_retrieve_response_code( $response );
		}
		if ( AI_O_Optimiser_HTTP::is_waf_block_code( $code ) && apply_filters( 'ai_o_optimiser_browser_fallback', true, $url, $code ) ) {
			// WAF-style refusal of the identified UA. Retry with a browser
			// profile before reporting the link broken — the target may be
			// perfectly reachable for visitors and AI assistants with
			// verified crawlers, just not for unknown bots.
			$response = wp_safe_remote_get( $url, AI_O_Optimiser_HTTP::profile_args( $args, 'browser', 'llms.txt Link Check' ) );
			if ( ! is_wp_error( $response ) ) {
				$browser_code = (int) wp_remote_retrieve_response_code( $response );
				if ( $browser_code >= 200 && $browser_code < 400 ) {
					return array(
						'code'    => $browser_code,
						'message' => sprintf(
							/* translators: %d: HTTP status code */
							__( 'Reachable for browsers, but HTTP %d to unrecognised bots.', 'ai-o-optimiser' ),
							$code
						),
					);
				}
			}
		}

		return array( 'code' => $code, 'message' => '' );
	}

	/**
	 * Determine whether Rank Math appears active.
	 *
	 * @return bool
	 */
	private static function is_rank_math_active() {
		if ( defined( 'RANK_MATH_VERSION' ) || class_exists( 'RankMath' ) || class_exists( '\\RankMath\\Helper' ) ) {
			return true;
		}

		$active = (array) get_option( 'active_plugins', array() );
		if ( is_multisite() ) {
			$network_active = (array) get_site_option( 'active_sitewide_plugins', array() );
			$active         = array_merge( $active, array_keys( $network_active ) );
		}

		foreach ( $active as $plugin ) {
			if ( false !== strpos( (string) $plugin, 'seo-by-rank-math/' ) || false !== strpos( (string) $plugin, 'rank-math' ) ) {
				return true;
			}
		}

		return false;
	}

	/**
	 * Multibyte-safe substring with a PHP core fallback.
	 *
	 * @param string $text Text.
	 * @param int    $start Start offset.
	 * @param int    $length Length.
	 * @return string
	 */
	private static function safe_substr( $text, $start, $length ) {
		$text = (string) $text;
		return function_exists( 'mb_substr' ) ? mb_substr( $text, $start, $length ) : substr( $text, $start, $length );
	}

	/**
	 * Format a UTC MySQL datetime in the WordPress site timezone.
	 *
	 * @param string $utc_mysql UTC datetime.
	 * @return string
	 */
	private static function format_site_time( $utc_mysql ) {
		try {
			return ( new DateTimeImmutable( $utc_mysql, new DateTimeZone( 'UTC' ) ) )->setTimezone( wp_timezone() )->format( 'Y-m-d H:i:s T' );
		} catch ( Exception $e ) {
			return $utc_mysql;
		}
	}

	/**
	 * Small status label for the admin page.
	 *
	 * @param string $status Status key.
	 * @return string
	 */
	private static function status_label( $status ) {
		switch ( $status ) {
			case 'pass':
				return __( 'Pass', 'ai-o-optimiser' );
			case 'warning':
				return __( 'Warnings', 'ai-o-optimiser' );
			case 'fail':
				return __( 'Fail', 'ai-o-optimiser' );
			default:
				return __( 'Not checked', 'ai-o-optimiser' );
		}
	}

	/**
	 * CSS class suffix for status badges.
	 *
	 * @param string $status Status key.
	 * @return string
	 */
	private static function status_class( $status ) {
		$status = str_replace( '_', '-', sanitize_key( $status ) );
		if ( ! in_array( $status, array( 'pass', 'warning', 'fail', 'not-checked' ), true ) ) {
			$status = 'not-checked';
		}
		return 'ai-o-optimiser-badge-' . $status;
	}

	/**
	 * Provider mode labels.
	 *
	 * @return array
	 */
	private static function provider_mode_labels() {
		return array(
			'auto'      => __( 'Auto: Rank Math owns llms.txt when active', 'ai-o-optimiser' ),
			'rank_math' => __( 'Rank Math owns llms.txt; ACT fixes/audits headers', 'ai-o-optimiser' ),
			'act'       => __( 'AI-O Optimiser owns llms.txt', 'ai-o-optimiser' ),
			'disabled'  => __( 'Disabled: do not serve llms.txt from ACT', 'ai-o-optimiser' ),
		);
	}

	/**
	 * Render the AI guidance files admin screen.
	 */
	public static function render_admin_page() {
		// phpcs:disable WordPress.Security.NonceVerification.Recommended -- Read-only screen state (filters, tab selection, pagination, redirect result notices). Nothing is written here, so there is no form submission to carry a nonce.
		if ( ! current_user_can( AI_O_Optimiser_Admin::CAPABILITY ) ) {
			return;
		}

		$settings = self::settings();
		$provider_mode = isset( $settings['llms_provider_mode'] ) ? $settings['llms_provider_mode'] : 'auto';
		$provider_labels = self::provider_mode_labels();
		$audit    = self::audit();
		$urls     = self::guidance_urls();
		$post_type_options = self::public_post_type_options();
		$preview_llms = self::generate_guidance_content( false, $settings );
		$preview_full = self::generate_guidance_content( true, $settings );
		?>
		<div class="wrap ai-o-optimiser-wrap">
			<h1><?php esc_html_e( 'AI Guidance Files', 'ai-o-optimiser' ); ?></h1>
			<p class="description">
				<?php esc_html_e( 'Generates and audits llms.txt and llms-full.txt so AI crawlers and assistants can read a clean Markdown map of the site.', 'ai-o-optimiser' ); ?>
			</p>

			<?php if ( isset( $_GET['saved'] ) ) : ?>
				<div class="notice notice-success is-dismissible"><p><?php esc_html_e( 'AI guidance file settings saved.', 'ai-o-optimiser' ); ?></p></div>
			<?php endif; ?>
			<?php if ( isset( $_GET['audited'] ) ) : ?>
				<div class="notice notice-success is-dismissible"><p><?php esc_html_e( 'AI guidance file quality check refreshed.', 'ai-o-optimiser' ); ?></p></div>
			<?php endif; ?>

			<div class="ai-o-optimiser-cards">
				<div class="ai-o-optimiser-card">
					<span class="ai-o-optimiser-card-label"><?php esc_html_e( 'Generation', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-badge <?php echo ! empty( $settings['llms_generate_enabled'] ) ? 'ai-o-optimiser-badge-pass' : 'ai-o-optimiser-badge-neutral'; ?>"><?php echo ! empty( $settings['llms_generate_enabled'] ) ? esc_html__( 'Enabled', 'ai-o-optimiser' ) : esc_html__( 'Disabled', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-card-sub"><?php echo esc_html( sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
						__( 'Provider mode: %s', 'ai-o-optimiser' ), isset( $provider_labels[ $provider_mode ] ) ? $provider_labels[ $provider_mode ] : $provider_mode ) ); ?></span>
				</div>
				<div class="ai-o-optimiser-card">
					<span class="ai-o-optimiser-card-label"><?php esc_html_e( 'Audit status', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-badge <?php echo esc_attr( self::status_class( $audit['overall_status'] ) ); ?>"><?php echo esc_html( self::status_label( $audit['overall_status'] ) ); ?></span>
					<span class="ai-o-optimiser-card-sub"><?php echo ! empty( $audit['checked_at'] ) ? esc_html( sprintf( /* translators: Placeholder values are replaced with contextual values shown in this message. */
						__( 'Checked %s', 'ai-o-optimiser' ), self::format_site_time( $audit['checked_at'] ) ) ) : esc_html__( 'Not checked yet', 'ai-o-optimiser' ); ?></span>
				</div>
				<div class="ai-o-optimiser-card">
					<span class="ai-o-optimiser-card-label"><?php esc_html_e( 'Request tracking', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-badge <?php echo ! empty( $settings['llms_track_hits'] ) ? 'ai-o-optimiser-badge-pass' : 'ai-o-optimiser-badge-neutral'; ?>"><?php echo ! empty( $settings['llms_track_hits'] ) ? esc_html__( 'Enabled', 'ai-o-optimiser' ) : esc_html__( 'Disabled', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-card-sub"><?php esc_html_e( 'Logs requests to /llms.txt and /llms-full.txt when they reach WordPress.', 'ai-o-optimiser' ); ?></span>
				</div>
				<div class="ai-o-optimiser-card">
					<span class="ai-o-optimiser-card-label"><?php esc_html_e( 'Rank Math', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-badge <?php echo ! empty( $audit['rank_math_active'] ) ? 'ai-o-optimiser-badge-pass' : 'ai-o-optimiser-badge-neutral'; ?>"><?php echo ! empty( $audit['rank_math_active'] ) ? esc_html__( 'Detected', 'ai-o-optimiser' ) : esc_html__( 'Not detected', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-card-sub"><?php
						if ( empty( $settings['llms_rank_math_header_fix'] ) ) {
							esc_html_e( 'llms.txt header fix disabled. Enable it if a plugin serves /llms.txt with noindex/nofollow.', 'ai-o-optimiser' );
						} elseif ( ! empty( $settings['llms_header_fix_allow_index'] ) ) {
							esc_html_e( 'llms.txt header fix enabled: X-Robots-Tag forced to index, follow.', 'ai-o-optimiser' );
						} else {
							esc_html_e( 'llms.txt header fix enabled: X-Robots-Tag forced to noindex, follow.', 'ai-o-optimiser' );
						}
					?></span>
				</div>
				<div class="ai-o-optimiser-card">
					<span class="ai-o-optimiser-card-label"><?php esc_html_e( 'robots.txt headers', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-badge <?php echo ! empty( $settings['robots_txt_header_fix'] ) ? 'ai-o-optimiser-badge-pass' : 'ai-o-optimiser-badge-neutral'; ?>"><?php echo ! empty( $settings['robots_txt_header_fix'] ) ? esc_html__( 'Enabled', 'ai-o-optimiser' ) : esc_html__( 'Disabled', 'ai-o-optimiser' ); ?></span>
					<span class="ai-o-optimiser-card-sub"><?php esc_html_e( 'Forces X-Robots-Tag: index, follow on /robots.txt whenever another plugin sends something more restrictive.', 'ai-o-optimiser' ); ?></span>
				</div>
			</div>

			<div class="ai-o-optimiser-actions-row">
				<p>
					<a class="button" href="<?php echo esc_url( $urls['llms_txt'] ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Open llms.txt', 'ai-o-optimiser' ); ?></a>
					<a class="button" href="<?php echo esc_url( $urls['llms_full_txt'] ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Open llms-full.txt', 'ai-o-optimiser' ); ?></a>
				</p>
				<form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
					<?php wp_nonce_field( 'ai_o_optimiser_run_llms_audit' ); ?>
					<input type="hidden" name="action" value="ai_o_optimiser_run_llms_audit" />
					<?php submit_button( __( 'Refresh Quality Check', 'ai-o-optimiser' ), 'primary', 'submit', false ); ?>
				</form>
			</div>

			<div class="ai-o-optimiser-columns">
				<div class="ai-o-optimiser-column ai-o-optimiser-panel">
					<h2><?php esc_html_e( 'Generation settings', 'ai-o-optimiser' ); ?></h2>
					<form method="post" action="<?php echo esc_url( admin_url( 'admin-post.php' ) ); ?>">
						<?php wp_nonce_field( 'ai_o_optimiser_save_llms' ); ?>
						<input type="hidden" name="action" value="ai_o_optimiser_save_llms" />
						<table class="form-table" role="presentation">
							<tr>
								<th scope="row"><?php esc_html_e( 'llms.txt provider', 'ai-o-optimiser' ); ?></th>
								<td>
									<select name="llms_provider_mode">
										<?php foreach ( $provider_labels as $provider_key => $provider_label ) : ?>
											<option value="<?php echo esc_attr( $provider_key ); ?>" <?php selected( $provider_mode, $provider_key ); ?>><?php echo esc_html( $provider_label ); ?></option>
										<?php endforeach; ?>
									</select>
									<p class="description"><?php esc_html_e( 'Auto mode lets Rank Math own /llms.txt when its llms-txt module is active, while AI-O Optimiser can still audit the live file and apply the Rank Math noindex-without-nofollow header fix. Choose ACT only when this plugin should serve /llms.txt itself.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Create files', 'ai-o-optimiser' ); ?></th>
								<td>
									<label><input type="checkbox" name="llms_generate_enabled" value="1" <?php checked( ! empty( $settings['llms_generate_enabled'] ) ); ?> /> <?php esc_html_e( 'Generate and serve /llms.txt when requested', 'ai-o-optimiser' ); ?></label><br />
									<label><input type="checkbox" name="llms_generate_full" value="1" <?php checked( ! empty( $settings['llms_generate_full'] ) ); ?> /> <?php esc_html_e( 'Also generate and serve /llms-full.txt', 'ai-o-optimiser' ); ?></label>
									<p class="description"><?php esc_html_e( 'This is dynamic WordPress generation, not a static root file. That keeps request tracking and GA4 export available when the request reaches WordPress.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Rank Math compatibility', 'ai-o-optimiser' ); ?></th>
								<td>
									<label><input type="checkbox" name="llms_rank_math_header_fix" value="1" <?php checked( ! empty( $settings['llms_rank_math_header_fix'] ) ); ?> /> <?php esc_html_e( 'Apply llms.txt header fix', 'ai-o-optimiser' ); ?></label>
									<p class="description"><?php esc_html_e( 'Corrects the X-Robots-Tag header on /llms.txt and /llms-full.txt whenever it is set to block crawling — most commonly by Rank Math, on any code path it uses to do so, not only its documented llms.txt output hook.', 'ai-o-optimiser' ); ?></p>
									<label style="margin-top:8px;display:block;"><input type="checkbox" name="llms_header_fix_allow_index" value="1" <?php checked( ! empty( $settings['llms_header_fix_allow_index'] ) ); ?> /> <?php esc_html_e( 'Also allow llms.txt to be indexed (X-Robots-Tag: index, follow)', 'ai-o-optimiser' ); ?></label>
									<p class="description"><?php esc_html_e( 'Off (recommended) sends noindex, follow: the file stays out of search results but AI crawlers can still follow its links. On sends index, follow instead.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'robots.txt compatibility', 'ai-o-optimiser' ); ?></th>
								<td>
									<label><input type="checkbox" name="robots_txt_header_fix" value="1" <?php checked( ! empty( $settings['robots_txt_header_fix'] ) ); ?> /> <?php esc_html_e( 'Apply robots.txt header fix', 'ai-o-optimiser' ); ?></label>
									<p class="description"><?php esc_html_e( 'Some SEO plugins send X-Robots-Tag: noindex, nofollow on /robots.txt itself, which can stop AI crawlers from trusting or following it. This forces X-Robots-Tag: index, follow on /robots.txt whenever the site sends anything else. Has no effect if robots.txt is a static file on disk — WordPress never runs for that request, so there is no header to correct. See System Check for static-file detection.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Site summary', 'ai-o-optimiser' ); ?></th>
								<td>
									<textarea name="llms_generator_site_summary" rows="4" class="large-text"><?php echo esc_textarea( $settings['llms_generator_site_summary'] ); ?></textarea>
									<p class="description"><?php esc_html_e( 'Optional. Leave blank to use the WordPress tagline.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Content sources', 'ai-o-optimiser' ); ?></th>
								<td>
									<?php foreach ( $post_type_options as $slug => $label ) : ?>
										<label class="ai-o-optimiser-inline-option"><input type="checkbox" name="llms_generator_post_types[]" value="<?php echo esc_attr( $slug ); ?>" <?php checked( in_array( $slug, $settings['llms_generator_post_types'], true ) ); ?> /> <?php echo esc_html( $label ); ?></label><br />
									<?php endforeach; ?>
									<label><?php esc_html_e( 'Maximum public items:', 'ai-o-optimiser' ); ?> <input type="number" name="llms_generator_max_items" min="5" max="200" value="<?php echo esc_attr( $settings['llms_generator_max_items'] ); ?>" class="small-text" /></label><br />
									<label><input type="checkbox" name="llms_generator_include_categories" value="1" <?php checked( ! empty( $settings['llms_generator_include_categories'] ) ); ?> /> <?php esc_html_e( 'Include public categories/topics', 'ai-o-optimiser' ); ?></label><br />
									<label><input type="checkbox" name="llms_generator_respect_noindex" value="1" <?php checked( ! empty( $settings['llms_generator_respect_noindex'] ) ); ?> /> <?php esc_html_e( 'Exclude URLs with common noindex metadata', 'ai-o-optimiser' ); ?></label>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Tracking', 'ai-o-optimiser' ); ?></th>
								<td>
									<label><input type="checkbox" name="llms_track_hits" value="1" <?php checked( ! empty( $settings['llms_track_hits'] ) ); ?> /> <?php esc_html_e( 'Track requests to llms.txt and llms-full.txt', 'ai-o-optimiser' ); ?></label>
									<p class="description"><?php esc_html_e( 'This only records requests that reach WordPress. If a static file, edge cache or server cache serves the file first, use server/CDN logs for complete request data.', 'ai-o-optimiser' ); ?></p>
								</td>
							</tr>
							<tr>
								<th scope="row"><?php esc_html_e( 'Quality checks', 'ai-o-optimiser' ); ?></th>
								<td>
									<label><input type="checkbox" name="llms_audit_check_full" value="1" <?php checked( ! empty( $settings['llms_audit_check_full'] ) ); ?> /> <?php esc_html_e( 'Also check llms-full.txt', 'ai-o-optimiser' ); ?></label><br />
									<label><input type="checkbox" name="llms_audit_check_links" value="1" <?php checked( ! empty( $settings['llms_audit_check_links'] ) ); ?> /> <?php esc_html_e( 'Check internal guidance-file links for HTTP errors', 'ai-o-optimiser' ); ?></label><br />
									<label><?php esc_html_e( 'Minimum useful links:', 'ai-o-optimiser' ); ?> <input type="number" name="llms_audit_min_links" min="0" max="100" value="<?php echo esc_attr( $settings['llms_audit_min_links'] ); ?>" class="small-text" /></label><br />
									<label><?php esc_html_e( 'Maximum internal links to check:', 'ai-o-optimiser' ); ?> <input type="number" name="llms_audit_max_links" min="1" max="100" value="<?php echo esc_attr( $settings['llms_audit_max_links'] ); ?>" class="small-text" /></label><br />
									<label><?php esc_html_e( 'Large llms.txt warning threshold:', 'ai-o-optimiser' ); ?> <input type="number" name="llms_audit_max_bytes" min="10000" max="1000000" step="1000" value="<?php echo esc_attr( $settings['llms_audit_max_bytes'] ); ?>" class="regular-text" /> <?php esc_html_e( 'bytes', 'ai-o-optimiser' ); ?></label>
								</td>
							</tr>
						</table>
						<?php submit_button( __( 'Save Guidance Settings', 'ai-o-optimiser' ) ); ?>
					</form>
				</div>

				<div class="ai-o-optimiser-column ai-o-optimiser-panel">
					<h2><?php esc_html_e( 'What this creates and checks', 'ai-o-optimiser' ); ?></h2>
					<ul class="ul-disc">
						<li><?php esc_html_e( 'llms.txt: concise Markdown map with homepage, sitemap, topics and public content links.', 'ai-o-optimiser' ); ?></li>
						<li><?php esc_html_e( 'llms-full.txt: expanded Markdown file with an index, summaries and cleaned body excerpts.', 'ai-o-optimiser' ); ?></li>
						<li><?php esc_html_e( 'Excludes password-protected posts, private/admin-looking URLs and common noindex URLs.', 'ai-o-optimiser' ); ?></li>
						<li><?php esc_html_e( 'Audits reachability, HTTP status, content type, Markdown structure, file size, useful links, duplicates and optional internal link errors.', 'ai-o-optimiser' ); ?></li>
					</ul>
					<h3><?php esc_html_e( 'Generated llms.txt preview', 'ai-o-optimiser' ); ?></h3>
					<textarea class="large-text code" rows="12" readonly><?php echo esc_textarea( self::safe_substr( $preview_llms, 0, 3500 ) ); ?></textarea>
					<?php if ( ! empty( $settings['llms_generate_full'] ) ) : ?>
						<h3><?php esc_html_e( 'Generated llms-full.txt preview', 'ai-o-optimiser' ); ?></h3>
						<textarea class="large-text code" rows="12" readonly><?php echo esc_textarea( self::safe_substr( $preview_full, 0, 3500 ) ); ?></textarea>
					<?php endif; ?>
				</div>
			</div>

			<h2><?php esc_html_e( 'Latest audit results', 'ai-o-optimiser' ); ?></h2>
			<?php foreach ( $audit['files'] as $file ) : ?>
				<div class="ai-o-optimiser-card ai-o-optimiser-wide-card">
					<?php $file_status = isset( $file['status'] ) ? $file['status'] : 'not_checked'; ?>
					<h3><?php echo esc_html( $file['label'] ); ?> <span class="ai-o-optimiser-badge <?php echo esc_attr( self::status_class( $file_status ) ); ?>"><?php echo esc_html( self::status_label( $file_status ) ); ?></span></h3>
					<p><a href="<?php echo esc_url( $file['url'] ); ?>" target="_blank" rel="noopener noreferrer"><?php echo esc_html( $file['url'] ); ?></a></p>
					<table class="widefat striped">
						<tbody>
							<tr><th><?php esc_html_e( 'Published by', 'ai-o-optimiser' ); ?></th><td><?php
								$file_generator = isset( $file['generator'] ) ? $file['generator'] : 'unknown';
								if ( 'ours' === $file_generator ) {
									esc_html_e( 'AI-O Optimiser. The live file matches what this plugin generates.', 'ai-o-optimiser' );
								} elseif ( 'differs' === $file_generator ) {
									esc_html_e( 'Not this plugin. Generation is on here, but the live file is not what AI-O Optimiser would produce -- another plugin is serving it, or a cache is holding an older copy.', 'ai-o-optimiser' );
								} elseif ( 'not_generating' === $file_generator ) {
									esc_html_e( 'Not this plugin. Guidance file generation is switched off, so whatever is at this address comes from somewhere else.', 'ai-o-optimiser' );
								} else {
									esc_html_e( 'Not established -- the file was not fetched.', 'ai-o-optimiser' );
								}
							?></td></tr>
							<tr><th><?php esc_html_e( 'HTTP status', 'ai-o-optimiser' ); ?></th><td><?php echo ! empty( $file['http_code'] ) ? esc_html( $file['http_code'] ) : esc_html__( 'Not checked', 'ai-o-optimiser' ); ?></td></tr>
							<tr><th><?php esc_html_e( 'Content-Type', 'ai-o-optimiser' ); ?></th><td><?php echo ! empty( $file['content_type'] ) ? esc_html( $file['content_type'] ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'X-Robots-Tag', 'ai-o-optimiser' ); ?></th><td><?php echo ! empty( $file['x_robots_tag'] ) ? esc_html( $file['x_robots_tag'] ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'Size', 'ai-o-optimiser' ); ?></th><td><?php echo isset( $file['bytes'] ) ? esc_html( size_format( (int) $file['bytes'] ) ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'Words', 'ai-o-optimiser' ); ?></th><td><?php echo isset( $file['words'] ) ? esc_html( number_format_i18n( (int) $file['words'] ) ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'Links', 'ai-o-optimiser' ); ?></th><td><?php echo isset( $file['links'] ) ? esc_html( number_format_i18n( (int) $file['links'] ) ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'Internal links', 'ai-o-optimiser' ); ?></th><td><?php echo isset( $file['internal_links'] ) ? esc_html( number_format_i18n( (int) $file['internal_links'] ) ) : '&mdash;'; ?></td></tr>
							<tr><th><?php esc_html_e( 'Checked links', 'ai-o-optimiser' ); ?></th><td><?php echo isset( $file['checked_links'] ) ? esc_html( number_format_i18n( (int) $file['checked_links'] ) ) : '&mdash;'; ?></td></tr>
						</tbody>
					</table>

					<?php if ( ! empty( $file['warnings'] ) ) : ?>
						<h4><?php esc_html_e( 'Warnings', 'ai-o-optimiser' ); ?></h4>
						<ul class="ul-disc">
							<?php foreach ( $file['warnings'] as $warning ) : ?>
								<li><?php echo esc_html( $warning ); ?></li>
							<?php endforeach; ?>
						</ul>
					<?php elseif ( 'pass' === ( isset( $file['status'] ) ? $file['status'] : '' ) ) : ?>
						<p><strong><?php esc_html_e( 'No quality issues found in the checked areas.', 'ai-o-optimiser' ); ?></strong></p>
					<?php endif; ?>

					<?php if ( ! empty( $file['broken_links'] ) ) : ?>
						<h4><?php esc_html_e( 'Broken checked links', 'ai-o-optimiser' ); ?></h4>
						<ul class="ul-disc">
							<?php foreach ( $file['broken_links'] as $broken ) : ?>
								<li><?php echo esc_html( $broken['url'] . ' — HTTP ' . $broken['code'] . ( $broken['message'] ? ' — ' . $broken['message'] : '' ) ); ?></li>
							<?php endforeach; ?>
						</ul>
					<?php endif; ?>

					<?php if ( ! empty( $file['noindex_links'] ) ) : ?>
						<h4><?php esc_html_e( 'Noindex internal links', 'ai-o-optimiser' ); ?></h4>
						<ul class="ul-disc">
							<?php foreach ( array_slice( $file['noindex_links'], 0, 20 ) as $url ) : ?>
								<li><?php echo esc_html( $url ); ?></li>
							<?php endforeach; ?>
						</ul>
					<?php endif; ?>

					<?php if ( ! empty( $file['snippet'] ) ) : ?>
						<h4><?php esc_html_e( 'Preview', 'ai-o-optimiser' ); ?></h4>
						<textarea class="large-text code" rows="8" readonly><?php echo esc_textarea( $file['snippet'] ); ?></textarea>
					<?php endif; ?>
				</div>
			<?php endforeach; ?>
		</div>
		<?php
		// phpcs:enable WordPress.Security.NonceVerification.Recommended
	}

	/**
	 * Save guidance and audit settings.
	 */
	public function handle_save_settings() {
		if ( ! current_user_can( AI_O_Optimiser_Admin::CAPABILITY ) ) {
			wp_die( esc_html__( 'You do not have permission to do this.', 'ai-o-optimiser' ) );
		}
		check_admin_referer( 'ai_o_optimiser_save_llms' );

		$settings = self::settings();
		$provider_mode = isset( $_POST['llms_provider_mode'] ) ? sanitize_key( wp_unslash( $_POST['llms_provider_mode'] ) ) : 'auto';
		$settings['llms_provider_mode'] = in_array( $provider_mode, array( 'auto', 'act', 'rank_math', 'disabled' ), true ) ? $provider_mode : 'auto';
		$settings['llms_generate_enabled'] = isset( $_POST['llms_generate_enabled'] );
		$settings['llms_generate_full']    = isset( $_POST['llms_generate_full'] );
		$settings['llms_generator_site_summary'] = isset( $_POST['llms_generator_site_summary'] ) ? sanitize_textarea_field( wp_unslash( $_POST['llms_generator_site_summary'] ) ) : '';

		$allowed_post_types = self::public_post_type_names();
		$selected_post_types = isset( $_POST['llms_generator_post_types'] ) && is_array( $_POST['llms_generator_post_types'] ) ? array_map( 'sanitize_key', wp_unslash( $_POST['llms_generator_post_types'] ) ) : array();
		$selected_post_types = array_values( array_intersect( $allowed_post_types, $selected_post_types ) );
		if ( empty( $selected_post_types ) ) {
			$selected_post_types = array( 'page', 'post' );
		}
		$settings['llms_generator_post_types'] = $selected_post_types;
		$settings['llms_generator_max_items'] = isset( $_POST['llms_generator_max_items'] ) ? min( 200, max( 5, (int) $_POST['llms_generator_max_items'] ) ) : 60;
		$settings['llms_generator_respect_noindex'] = isset( $_POST['llms_generator_respect_noindex'] );
		$settings['llms_generator_include_categories'] = isset( $_POST['llms_generator_include_categories'] );
		$settings['llms_rank_math_header_fix'] = isset( $_POST['llms_rank_math_header_fix'] );
		$settings['llms_header_fix_allow_index'] = isset( $_POST['llms_header_fix_allow_index'] );
		$settings['robots_txt_header_fix'] = isset( $_POST['robots_txt_header_fix'] );

		$settings['llms_track_hits']        = isset( $_POST['llms_track_hits'] );
		$settings['llms_audit_check_full']  = isset( $_POST['llms_audit_check_full'] );
		$settings['llms_audit_check_links'] = isset( $_POST['llms_audit_check_links'] );
		$settings['llms_audit_min_links']   = isset( $_POST['llms_audit_min_links'] ) ? min( 100, max( 0, (int) $_POST['llms_audit_min_links'] ) ) : 3;
		$settings['llms_audit_max_links']   = isset( $_POST['llms_audit_max_links'] ) ? min( 100, max( 1, (int) $_POST['llms_audit_max_links'] ) ) : 20;
		$settings['llms_audit_max_bytes']   = isset( $_POST['llms_audit_max_bytes'] ) ? min( 1000000, max( 10000, (int) $_POST['llms_audit_max_bytes'] ) ) : 100000;

		// No explicit autoload argument: ai_o_optimiser_settings is read on every single
		// front-end request (crawler match, guidance-file routing, header
		// enforcement) and must stay autoloaded like every other save path for
		// it does. Forcing autoload=false here previously meant one extra
		// database query on every anonymous page view for the rest of the
		// option's life, for every visitor, from the moment an admin saved
		// this screen once.
		update_option( 'ai_o_optimiser_settings', $settings );
		self::flush_guidance_cache();
		delete_option( self::AUDIT_OPTION );

		wp_safe_redirect( add_query_arg( 'saved', '1', admin_url( 'admin.php?page=ai-o-optimiser-guidance' ) ) );
		exit;
	}

	/**
	 * Run audit and return to the admin screen.
	 */
	public function handle_run_audit() {
		if ( ! current_user_can( AI_O_Optimiser_Admin::CAPABILITY ) ) {
			wp_die( esc_html__( 'You do not have permission to do this.', 'ai-o-optimiser' ) );
		}
		check_admin_referer( 'ai_o_optimiser_run_llms_audit' );

		self::run_audit();
		wp_safe_redirect( add_query_arg( 'audited', '1', admin_url( 'admin.php?page=ai-o-optimiser-guidance' ) ) );
		exit;
	}
}