<?php
/**
 * Plugin Name: byfaro – AI Search & AI Agent Optimization
 * Description: See how AI search and AI agents like ChatGPT, Claude and browser agents find, read and use your site, then fix what's in the way in one click. Connects to your byfaro account at byfaro.ai.
 * Version:     1.0.0
 * Requires at least: 5.8
 * Requires PHP: 7.4
 * Author:      byfaro
 * Author URI:  https://byfaro.ai
 * License:     GPLv2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: byfaro
 *
 * Nothing is sent to byfaro.ai until you click "Connect to byfaro". See
 * readme.txt ("External services") for exactly what is shared after that.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

define( 'BYFARO_PLUGIN_VERSION', '1.0.0' );
define( 'BYFARO_PLUGIN_FILE', __FILE__ );
define( 'BYFARO_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );

if ( ! defined( 'BYFARO_API_BASE' ) ) {
	// Overridable from wp-config.php so the test site can point at test.byfaro.ai.
	define( 'BYFARO_API_BASE', 'https://byfaro.ai' );
}

require_once BYFARO_PLUGIN_DIR . 'includes/byfaro-copy.php';
require_once BYFARO_PLUGIN_DIR . 'includes/byfaro-guides.php';
require_once BYFARO_PLUGIN_DIR . 'includes/byfaro-explain.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-api.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-inside-scan.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-live.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-connect.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-front.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-badge.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-fixes.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-changes.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-visitors.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-admin.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-business.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-wizard.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-guide.php';
require_once BYFARO_PLUGIN_DIR . 'includes/class-byfaro-findings.php';

Byfaro_Connect::init();
Byfaro_Front::init();
Byfaro_Badge::init();
Byfaro_Fixes::init();
Byfaro_Visitors::init();
Byfaro_Inside_Scan::init();
Byfaro_Live::init();
// Outside is_admin(): its background send runs from WP-Cron, which is not an admin request.
Byfaro_Business::init();
Byfaro_Findings::init_global();
if ( is_admin() ) {
	Byfaro_Admin::init();
	Byfaro_Wizard::init();
	Byfaro_Guide::init();
	Byfaro_Findings::init();
} else {
	Byfaro_Guide::init_front(); // the card in page builders that edit on the page itself
}

/**
 * What each site needs before byfaro runs on it: the visitor table, the new-install
 * choices and the two schedules. Safe to run again: nothing an owner chose changes.
 */
function byfaro_setup_site() {
	global $wpdb;
	// An earlier install: its llms.txt choice, a connection, or anything else byfaro kept
	// here. A network subsite that ran byfaro before 1.23.25 never got the choice saved, and
	// its llms.txt was on: it stays on (Simon, 21 Oct). As Byfaro_Guide::always_on() tells.
	$earlier = false !== get_option( 'byfaro_llms_enabled' ) || false !== get_option( 'byfaro_api_key' )
		|| (bool) $wpdb->get_var( $wpdb->prepare( "SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s LIMIT 1", $wpdb->esc_like( 'byfaro_' ) . '%', $wpdb->esc_like( '_transient_byfaro_' ) . '%' ) ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery -- once per site, when byfaro sets it up.
	Byfaro_Visitors::create_table();
	// The always-there byfaro button in the editors starts off on a new install
	// (Jack, 20 Oct); a site that already had byfaro keeps it on.
	add_option( Byfaro_Guide::ALWAYS, $earlier ? 1 : 0 );
	// New installs start with the summary for AI (llms.txt) off: turning it on
	// is one of byfaro's fixes, from Site settings or the Issues screen
	// (Jack, 2026-09-17). add_option leaves an existing choice alone, and an
	// earlier install without one keeps what it had (on).
	add_option( 'byfaro_llms_enabled', $earlier ? 1 : 0 );
	if ( ! wp_next_scheduled( 'byfaro_daily_maintenance' ) ) {
		wp_schedule_event( time() + HOUR_IN_SECONDS, 'daily', 'byfaro_daily_maintenance' );
	}
	if ( ! wp_next_scheduled( 'byfaro_weekly_scan' ) ) {
		wp_schedule_event( time() + DAY_IN_SECONDS, 'weekly', 'byfaro_weekly_scan' );
	}
	update_option( 'byfaro_site_ready', 1 );
}

register_activation_hook( __FILE__, function () {
	byfaro_setup_site();
	// One notice on the Plugins screen, after the first activation only: no
	// redirect, and once dismissed it stays dismissed (WordPress.org
	// guideline 11, review of 26 Oct).
	add_option( 'byfaro_welcome_notice', 1, '', false );
} );

// Multisite: "Network Activate" runs the activation above on the main site only, so
// every other site sets itself up on its first page load, before byfaro's visitor log
// needs its table (V1 mock test P2-8, 21 Oct: AI visits to a subsite hit a missing
// table, llms.txt started on and no weekly scan was scheduled). Single sites never
// need it: their activation did it.
add_action( 'init', function () {
	if ( is_multisite() && ! get_option( 'byfaro_site_ready' ) ) {
		byfaro_setup_site();
	}
}, 1 );

register_deactivation_hook( __FILE__, function () {
	wp_clear_scheduled_hook( 'byfaro_daily_maintenance' );
	wp_clear_scheduled_hook( 'byfaro_weekly_scan' );
	wp_clear_scheduled_hook( 'byfaro_inside_gather' );
	wp_clear_scheduled_hook( 'byfaro_live_retry' );
	wp_clear_scheduled_hook( 'byfaro_live_saved' );
	wp_clear_scheduled_hook( 'byfaro_business_send' );
} );

// Purge visitor-log rows older than 90 days, keep the cached status warm, send
// any change-history entries that didn't reach the byfaro account yet, and scan
// from inside WordPress when byfaro.ai asks because the score it shows is old.
add_action( 'byfaro_daily_maintenance', function () {
	Byfaro_Visitors::purge_old();
	if ( Byfaro_Api::is_connected() ) {
		$status = Byfaro_Api::refresh_status();
		Byfaro_Changes::mirror_pending();
		Byfaro_Api::maybe_requested_scan( $status );
	}
} );

// The weekly automatic scan. The server decides whether the plan allows it:
// this cron only asks. Free accounts get a polite 403 and nothing happens.
// The scan runs in the background on byfaro; the next status refresh shows it.
add_action( 'byfaro_weekly_scan', function () {
	if ( Byfaro_Api::is_connected() ) {
		Byfaro_Api::request_scan( true );
	}
} );