<?php
/**
 * Plugin Name: WP Rankify (AI Auto Embed)
 * Plugin URI: https://wprankify.de
 * Description: Warum rankt dein Artikel nicht? WP Rankify zeigt es dir – mit einem gewichteten AI Readiness Score, konkreten Verbesserungshinweisen und automatischem Schema.org-Markup direkt im Editor. Kostenlos. Kein API-Key. Sprachen: Deutsch, Englisch. KI Vorschläge in der jeweiligen Sprache des Beitrages.
 * Version: 1.5.2
 * Author: Münch Media
 * Author URI: https://profiles.wordpress.org/muenchmedia/
 * License: GPLv2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Requires at least: 5.2
 * Requires PHP: 7.2
 * Text Domain: ai-json-extractor-auto-embed-lite
 * Domain Path: /languages
 */
if ( ! defined( 'ABSPATH' ) ) { exit; }
/* -------- Pfad-Konstante (wird von Traits für require benötigt) -------- */
define( 'AIJE_PLUGIN_FILE', __FILE__ );
// Version wird ab jetzt live aus dem Plugin-Header oben gelesen, statt separat
// hartkodiert zu sein. Grund: Bei Releases wurde bisher nur der Header-Kommentar
// gebumpt, die Konstante aber vergessen – dadurch meldeten Heartbeat/AI-Proxy
// (trait-stats.php) monatelang eine veraltete Version, obwohl WordPress selbst
// (Plugin-Liste, Updates) längst den korrekten neuen Stand zeigte.
if ( ! function_exists( 'get_file_data' ) ) {
    require_once ABSPATH . WPINC . '/functions.php';
}
$aije_file_data = get_file_data( __FILE__, array( 'Version' => 'Version' ) );
define( 'AIJE_PLUGIN_VERSION', ! empty( $aije_file_data['Version'] ) ? $aije_file_data['Version'] : '1.3.8' );
/* -------- Guard: keine Doppel-Loads -------- */
if ( defined( 'AIJE_LITE_1_0_0' ) ) { return; }
define( 'AIJE_LITE_1_0_0', true );
/* -------- Activation / Deactivation Hooks -------- */
register_activation_hook( __FILE__, function () {
    if ( ! get_option( 'aije_activated_at' ) ) {
        update_option( 'aije_activated_at', time(), false );
    }
    add_rewrite_rule( '^llms\.txt$', 'index.php?aije_llms=1', 'top' );
    flush_rewrite_rules();
    // Dieser Flush läuft in einem Spezial-Request, in dem plugins_loaded (und
    // damit boot() mit dem generate_rewrite_rules-Filter für remove_category_base)
    // noch NICHT gelaufen ist — der gecachte Regelsatz kann die kategorielose
    // Regel also fehlen, selbst wenn das Setting an ist. Flag zurücksetzen,
    // damit maybe_force_category_rewrite_flush() beim nächsten normalen
    // Seitenaufruf (boot() ist dann korrekt gelaufen) automatisch nachflusht,
    // statt für "schon erledigt" gehalten zu werden.
    delete_option( 'aije_cat_rewrite_fix_v2' );
} );
register_activation_hook( __FILE__, function () {
    global $wp_version;
    if ( version_compare( PHP_VERSION, '7.2', '<' ) ) {
        deactivate_plugins( plugin_basename( __FILE__ ) );
        wp_die( esc_html__( 'WP Rankify benötigt mindestens PHP 7.2.', 'ai-json-extractor-auto-embed-lite' ) );
    }
    if ( ! isset( $wp_version ) || version_compare( $wp_version, '5.2', '<' ) ) {
        deactivate_plugins( plugin_basename( __FILE__ ) );
        wp_die( esc_html__( 'WP Rankify benötigt mindestens WordPress 5.2.', 'ai-json-extractor-auto-embed-lite' ) );
    }
} );
register_activation_hook( __FILE__, function () {
    // Opt-out respektieren (bei Reaktivierung bleibt die Wahl erhalten).
    if ( get_option( 'aije_stats_optout' ) ) { return; }
    $payload = array(
        'event'          => 'plugin_activation',
        'site_name'      => get_bloginfo( 'name' ),
        'site_url'       => home_url(),
        'php_version'    => PHP_VERSION,
        'wp_version'     => get_bloginfo( 'version' ),
        'plugin_version' => AIJE_PLUGIN_VERSION,
        'secret'         => AIJE_Lite_100::stats_secret(),
        'time'           => date_i18n( 'c' ),
    );
    @wp_remote_post( AIJE_Lite_100::STATS_ENDPOINT . 'activate', array(
        'method'   => 'POST', 'timeout' => 8, 'redirection' => 5,
        'headers'  => array( 'Content-Type' => 'application/json' ),
        'body'     => wp_json_encode( $payload ), 'sslverify' => true,
    ) );
} );
register_uninstall_hook( __FILE__, 'aije_on_uninstall' );
function aije_on_uninstall() {
    $pv = defined( 'AIJE_PLUGIN_VERSION' ) ? AIJE_PLUGIN_VERSION : '1.3.8';
    if ( ! get_option( 'aije_stats_optout' ) ) wp_remote_post( 'https://www.muench-media.com/aije-stats/heartbeat', array(
        'timeout' => 5, 'headers' => array( 'Content-Type' => 'application/json' ),
        'body'    => wp_json_encode( array( 'secret' => hash( 'sha256', home_url() . '1111111' ), 'site_url' => home_url(), 'plugin_version' => $pv, 'event' => 'uninstalled' ) ),
        'blocking' => true, 'sslverify' => true,
    ) );
    // KI-Besuche: Log-Tabelle und Optionen entfernen
    global $wpdb;
    $wpdb->query( 'DROP TABLE IF EXISTS ' . $wpdb->prefix . 'aije_ai_visits' ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery
    delete_option( 'aije_ai_visits_db' );
    delete_option( 'aije_ai_visits_enabled' );
    delete_option( 'aije_ai_visits_retention' );
    delete_option( 'aije_ai_debug_until' );
    delete_option( 'aije_ai_debug_log' );
}
register_deactivation_hook( __FILE__, function () {
    delete_option( 'aije_stats_notice_dismissed' );
    delete_option( 'aije_first_ping_sent' );
    delete_option( 'aije_last_heartbeat' );
    // WICHTIG: In DIESEM Request läuft der Plugin-Code noch ganz normal weiter
    // (WordPress muss die Datei laden, um den Deaktivierungs-Hook auszuführen),
    // d.h. boot() hat den generate_rewrite_rules-/category_link-Filter bereits
    // registriert. Ein einfacher flush_rewrite_rules() würde die kategorielose
    // Regel deshalb nur erneut mitschreiben statt sie zu entfernen — die Filter
    // müssen VOR dem Flush explizit runter, damit der neu berechnete Regelsatz
    // wirklich "sauber" ist (Kategorie-Slug wieder wie im WordPress-Standard).
    if ( ! empty( $GLOBALS['aije_lite_instance'] ) ) {
        remove_filter( 'generate_rewrite_rules', array( $GLOBALS['aije_lite_instance'], 'maybe_add_category_rewrite_rules' ) );
        remove_filter( 'category_link',          array( $GLOBALS['aije_lite_instance'], 'maybe_strip_category_base_from_link' ), 10 );
    }
    delete_option( 'rewrite_rules' );
    flush_rewrite_rules();
    $pv = defined( 'AIJE_PLUGIN_VERSION' ) ? AIJE_PLUGIN_VERSION : '1.3.8';
    if ( get_option( 'aije_stats_optout' ) ) { return; }
    wp_remote_post( 'https://www.muench-media.com/aije-stats/heartbeat', array(
        'timeout' => 5, 'headers' => array( 'Content-Type' => 'application/json' ),
        'body'    => wp_json_encode( array( 'secret' => hash( 'sha256', home_url() . '1111111' ), 'site_url' => home_url(), 'plugin_version' => $pv, 'event' => 'deactivated' ) ),
        'blocking' => true, 'sslverify' => true,
    ) );
} );
/* -------- Plugin-Update: Heartbeat -------- */
add_action( 'upgrader_process_complete', function( $upgrader, $options ) {
    if ( $options['action'] === 'update' && $options['type'] === 'plugin' && isset( $options['plugins'] ) ) {
        foreach ( (array) $options['plugins'] as $plugin ) {
            if ( strpos( $plugin, 'ai-json-extractor-auto-embed' ) !== false ) {
                delete_option( 'aije_last_heartbeat' );
                $instance = new AIJE_Lite_100();
                if ( method_exists( $instance, 'cron_heartbeat_runner' ) ) {
                    $instance->cron_heartbeat_runner();
                }
                break;
            }
        }
    }
}, 10, 2 );
/* -------- Erster Ping nach Aktivierung -------- */
add_action( 'admin_init', function() {
    if ( ! get_option( 'aije_first_ping_sent' ) ) {
        if ( ! wp_next_scheduled( 'aije_first_heartbeat' ) ) {
            wp_schedule_single_event( time() + 5, 'aije_first_heartbeat' );
        }
    }
} );
add_action( 'aije_first_heartbeat', function() {
    update_option( 'aije_first_ping_sent', time(), false );
    update_option( 'aije_last_heartbeat',  time(), false );
    if ( class_exists( 'AIJE_Lite_100' ) ) {
        $instance = new AIJE_Lite_100();
        $instance->send_first_ping();
    }
} );
/* ====================================================================
 * Traits laden
 * ==================================================================== */
$aije_includes = plugin_dir_path( __FILE__ ) . 'includes/';
require_once $aije_includes . 'trait-options.php';
require_once $aije_includes . 'trait-score.php';
require_once $aije_includes . 'trait-schema.php';
require_once $aije_includes . 'trait-stats.php';
require_once $aije_includes . 'trait-export.php';
require_once $aije_includes . 'trait-admin.php';
require_once $aije_includes . 'trait-meta.php';   // Meta-Generator (separates Trait)
require_once $aije_includes . 'trait-gsc.php';    // GSC OAuth + Daten
require_once $aije_includes . 'trait-sitemap.php'; // XML Sitemap
require_once $aije_includes . 'trait-review-notice.php'; // Review-Bitte im Backend
require_once $aije_includes . 'trait-ai-visits.php';     // KI-Crawler-Besuche protokollieren
/* ====================================================================
 * Haupt-Klasse
 * ==================================================================== */
if ( ! class_exists( 'AIJE_Lite_100' ) ) :
class AIJE_Lite_100 {
    use AIJE_Options;
    use AIJE_Score;
    use AIJE_Schema;
    use AIJE_Stats;
    use AIJE_Export;
    use AIJE_Admin;
    use AIJE_Meta;
    use AIJE_GSC;
    use WP_Rankify_Sitemap;
    use AIJE_Review_Notice;
    use AIJE_AI_Visits;
    /* ===== Konstanten ===== */
    const OPT_KEY          = 'aije_pro_opts';
    const OPT_LICENSE      = 'aije_license_code';
    const META_NO_EMBED    = '_aije_no_embed';
    const EXPORT_DIR       = 'ai-json-exports';
    const LOG_FILE         = 'ai-json-export-log.csv';
    const CRON_EXPORT      = 'aije_pro_cron_export';
    const CRON_PING        = 'aije_pro_cron_ping';
    const CRON_HEARTBEAT   = 'aije_pro_cron_heartbeat';
    const PING_QUEUE_OPT   = 'aije_pro_ping_queue';
    const PING_ERRORS_OPT  = 'aije_pro_last_ping_errors';
    const LAST_ARGS_OPT    = 'aije_pro_last_export';
    const BRAND_LOGO_URL   = 'https://www.muench-media.com/img/MMLogo.jpg';
    const STATS_SALT       = '1111111';
    const STATS_ENDPOINT   = 'https://www.muench-media.com/aije-stats/';
    const AI_PROXY_URL     = 'https://www.muench-media.com/aije-proxy/';
    const OPT_STATS_OPTOUT = 'aije_stats_optout';
    const TRIAL_DAYS       = 14;
    const USER_META_JOB_TITLE = 'aije_job_title';
    const USER_META_EXPERTISE = 'aije_expertise';
    const USER_META_WEBSITE   = 'aije_expert_website';
    const USER_META_SAME_AS   = 'aije_same_as_links';
    const REVIEW_URL                = 'https://wordpress.org/support/plugin/ai-json-extractor-auto-embed-lite/reviews/#new-post';
    const REVIEW_NOTICE_DELAY_DAYS  = 10;
    const REVIEW_NOTICE_SNOOZE_DAYS = 14;
    /* ===== Konstruktor ===== */
    public function __construct() {
        add_action( 'plugins_loaded', array( $this, 'boot' ), 20 );
    }
    /* ===== Boot – alle Hooks registrieren ===== */
    public function boot() {
        // Übersetzungen laden — WICHTIG: das fehlte bisher komplett, wodurch
        // selbst die wenigen vorhandenen __()/_e()-Aufrufe wirkungslos waren,
        // weil WordPress nie wusste, wo die .mo-Dateien liegen.
        load_plugin_textdomain( 'ai-json-extractor-auto-embed-lite', false, dirname( plugin_basename( AIJE_PLUGIN_FILE ) ) . '/languages' );
        // Erzwungene Backend-Sprache (Einstellung in tab-settings.php) — NICHT über
        // den 'plugin_locale'-Filter lösbar: Seit WordPress 6.7 lädt WP .mo-Dateien
        // nur noch "just in time" beim ersten __()-Aufruf, direkt über
        // determine_locale() — der 'plugin_locale'-Filter wird dabei gar nicht mehr
        // aufgerufen (gegen den aktuellen WP-Core-Quellcode geprüft: kein einziger
        // Treffer für 'plugin_locale' mehr in wp-includes/l10n.php). Deshalb klinken
        // wir uns stattdessen dort ein, wo WP JEDE übersetzte Zeichenkette für
        // unsere Text-Domain ohnehin durchreicht: dem 'gettext_{domain}'-Filter
        // (greift für __()/_e()/esc_html__() usw., die alle intern über translate()
        // laufen). So bestimmen wir die Sprache selbst, unabhängig davon wie
        // WP-Core seine .mo-Dateien lädt oder welche Version das gerade tut.
        add_filter( 'gettext_ai-json-extractor-auto-embed-lite', array( $this, 'filter_backend_gettext' ), 10, 3 );
        // Pendant für _n()/_n_noop() (Plural-Strings): WP ruft für diese NICHT
        // 'gettext_{domain}', sondern 'ngettext_{domain}' auf — ein eigener
        // Filter mit eigener Signatur. Ohne diesen Hook bleiben alle _n()-Aufrufe
        // unserer Domain von der oben erzwungenen Backend-Sprache unberührt und
        // fallen auf das zurück, was WP-Core selbst auflöst (bei uns: der
        // deutsche Quelltext, da die Domain sonst nirgends geladen wird) — genau
        // der Bug, der die 4 Plural-Strings in der internen Verlinkung trotz
        // korrekter .mo-Datei auf Deutsch stehen ließ.
        add_filter( 'ngettext_ai-json-extractor-auto-embed-lite', array( $this, 'filter_backend_ngettext' ), 10, 5 );
        // AJAX
        add_action( 'wp_ajax_aije_generate_meta',  array( $this, 'aije_generate_meta_handler' ) );
        add_action( 'wp_ajax_aije_save_meta',      array( $this, 'aije_save_meta_handler' ) );
        add_action( 'wp_ajax_aije_topic_analysis', array( $this, 'aije_topic_analysis_handler' ) );
        add_action( 'wp_ajax_aije_check_status',   array( $this, 'aije_check_status_handler' ) );
        add_action( 'wp_ajax_aije_insert_link',    array( $this, 'aije_insert_link_handler' ) );
        add_action( 'wp_ajax_aije_exclude_post',   array( $this, 'aije_exclude_post_handler' ) );
        add_action( 'wp_ajax_aije_include_post',   array( $this, 'aije_include_post_handler' ) );
        // Admin
        add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_assets' ) );
        add_action( 'admin_notices',         array( $this, 'stats_consent_notice' ) );
        add_action( 'admin_notices',         array( $this, 'maybe_render_review_notice' ) );
        add_action( 'admin_post_aije_stats_optout', array( $this, 'handle_stats_optout' ) );
        add_action( 'admin_post_aije_stats_optin',  array( $this, 'handle_stats_optin' ) );
        add_action( 'add_meta_boxes', array( $this, 'add_score_metabox' ) );
        // Experten-Profil
        add_action( 'show_user_profile',        array( $this, 'add_expert_profile_fields' ) );
        add_action( 'edit_user_profile',        array( $this, 'add_expert_profile_fields' ) );
        add_action( 'personal_options_update',  array( $this, 'save_expert_profile_fields' ) );
        add_action( 'edit_user_profile_update', array( $this, 'save_expert_profile_fields' ) );
        // Frontend
        add_action( 'wp_head', array( $this, 'output_person_schema_in_head' ), 5 );
        add_action( 'wp_head', array( $this, 'output_aije_meta_description' ), 4 );
        add_action( 'wp_head', array( $this, 'output_tracking_head' ), 1 );
        add_action( 'wp_head',      array( $this, 'auto_embed' ) );
        add_action( 'wp_body_open', array( $this, 'auto_embed' ) );
        // Telemetrie / Activity
        add_action( 'wp_login',   array( $this, 'on_admin_login' ), 10, 2 );
        add_action( 'admin_init', array( $this, 'on_admin_activity' ) );
        if ( is_admin() ) { ob_start(); }
        // SEO-Meta-Box
        add_action( 'add_meta_boxes', array( $this, 'add_seo_metabox' ) );
        add_action( 'save_post',      array( $this, 'save_seo_metabox' ), 10, 1 );
        if ( is_admin() ) {
            add_action( 'admin_menu', array( $this, 'tools_menu' ) );
            add_action( 'admin_init', array( $this, 'register_settings' ) );
            add_action( 'add_meta_boxes', array( $this, 'add_toggle_metabox' ) );
            add_action( 'add_meta_boxes', array( $this, 'add_ki_highlight_metabox' ) );
            add_action( 'add_meta_boxes', array( $this, 'add_preview_metabox' ) );
            add_action( 'save_post',      array( $this, 'save_post_meta' ) );
            add_action( 'admin_post_aije_export',        array( $this, 'handle_export' ) );
            add_action( 'admin_post_aije_run_cron_now',  array( $this, 'handle_run_cron_now' ) );
            add_action( 'admin_post_aije_clear_cron',    array( $this, 'handle_clear_cron' ) );
            add_action( 'admin_post_aije_test_ping',     array( $this, 'handle_test_ping' ) );
            add_action( 'admin_post_aije_flush_queue',   array( $this, 'handle_flush_queue' ) );
            add_action( 'admin_post_aije_review_leave',   array( $this, 'handle_review_notice_leave' ) );
            add_action( 'admin_post_aije_review_snooze',  array( $this, 'handle_review_notice_snooze' ) );
            add_action( 'admin_post_aije_review_dismiss', array( $this, 'handle_review_notice_dismiss' ) );
            add_action( 'admin_post_aije_ai_visits_settings', array( $this, 'handle_ai_visits_settings' ) );
            add_action( 'admin_init',                         array( $this, 'maybe_install_ai_visits_table' ) );
        }
        // Cron
        add_filter( 'cron_schedules',   array( $this, 'add_schedules' ) );
        add_action( self::CRON_EXPORT,    array( $this, 'cron_export_runner' ) );
        add_action( self::CRON_PING,      array( $this, 'cron_ping_runner' ) );
        add_action( self::CRON_HEARTBEAT, array( $this, 'cron_heartbeat_runner' ) );
        // Post-Übergänge
        add_action( 'transition_post_status', array( $this, 'on_transition_status' ), 10, 3 );
        add_action( 'post_updated',           array( $this, 'on_post_updated' ), 10, 3 );
        // Sitemap
        $this->sitemap_boot();
        // llms.txt / robots.txt / GSC
        add_action( 'init',              array( $this, 'register_llms_rewrite' ) );
        add_action( 'init',              array( $this, 'maybe_answer_key_verification' ), 1 ); // Domain-Verifizierung für den KI-Proxy
        add_action( 'admin_init',        array( $this, 'handle_gsc_oauth_callback' ) );
        add_action( 'template_redirect', array( $this, 'log_ai_visit' ), 0 ); // KI-Besuche – vor serve_llms_txt, damit auch llms.txt-Abrufe gezählt werden
        add_action( 'template_redirect', array( $this, 'serve_llms_txt' ) );
        add_filter( 'robots_txt',        array( $this, 'append_llms_to_robots' ), 10, 2 );
        // Kategorie-Slug entfernen (remove_category_base) – Funktionen liegen in
        // trait-options.php, waren dort aber ohne Hook-Registrierung wirkungslos.
        // Deshalb blieb der Haken zwar gespeichert, hatte aber nie einen Effekt.
        add_filter( 'category_link',          array( $this, 'maybe_strip_category_base_from_link' ), 10, 2 );
        add_filter( 'generate_rewrite_rules', array( $this, 'maybe_add_category_rewrite_rules' ) );
        // WICHTIG: NICHT direkt hier (plugins_loaded) aufrufen — WordPress rät
        // ausdrücklich davon ab, flush_rewrite_rules() vor 'init' zu nutzen, weil
        // zu diesem frühen Zeitpunkt die Rewrite-Infrastruktur noch nicht sicher
        // vollständig aufgebaut ist. Das war die eigentliche Ursache dafür, dass
        // der Korrektur-Flush nach Reaktivieren teils nicht griff.
        add_action( 'init', array( $this, 'maybe_force_category_rewrite_flush' ) );
        // 301 von der alten /category/...-URL auf die neue, damit nicht beide
        // Varianten parallel erreichbar bleiben (Duplicate Content).
        add_action( 'template_redirect', array( $this, 'maybe_redirect_old_category_base_url' ), 5 );
        // Init
        $o = $this->get_opts();
        $this->maybe_reschedule_export( ! empty( $o['cron_enabled'] ), $o['cron_frequency'] );
        $this->ensure_ping_cron();
        $this->ensure_heartbeat_cron();
    }
    /* ===== Cron-Schedules ===== */
    public function add_schedules( $s ) {
        $s['aije_daily']  = array( 'interval' => DAY_IN_SECONDS,  'display' => __( 'AI JSON – täglich', 'ai-json-extractor-auto-embed-lite' ) );
        $s['aije_weekly'] = array( 'interval' => WEEK_IN_SECONDS, 'display' => __( 'AI JSON – wöchentlich', 'ai-json-extractor-auto-embed-lite' ) );
        $s['aije_15min']  = array( 'interval' => 900,             'display' => __( 'AI JSON – alle 15 Minuten', 'ai-json-extractor-auto-embed-lite' ) );
        return $s;
    }
}
endif;
/* ===== Bootstrap ===== */
$GLOBALS['aije_lite_instance'] = new AIJE_Lite_100();
if ( ! function_exists( 'aije_pro_enabled' ) ) {
    function aije_pro_enabled() { return true; }
}