<?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.
 * Version: 1.3.11
 * 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
 */

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

/* -------- Pfad-Konstante (wird von Traits für require benötigt) -------- */
define( 'AIJE_PLUGIN_FILE', __FILE__ );

if ( ! function_exists( 'get_plugin_data' ) ) {
    require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
$aije_plugin_data = get_plugin_data( __FILE__, false, false );
define( 'AIJE_PLUGIN_VERSION', $aije_plugin_data['Version'] );

/* -------- 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();
    // Welcome-Banner bei jeder Neuinstallation / Reaktivierung zurücksetzen
    delete_option( 'aije_welcome_dismissed' );
    // Flag für Weiterleitung nach Aktivierung setzen
    add_option( 'aije_activation_redirect', 1 );
} );

/* -------- Weiterleitung nach Aktivierung -------- */
add_action( 'admin_init', function () {
    if ( get_option( 'aije_activation_redirect' ) ) {
        delete_option( 'aije_activation_redirect' );
        // Nicht weiterleiten bei Bulk-Aktivierung mehrerer Plugins
        if ( isset( $_GET['activate-multi'] ) ) { return; }
        wp_safe_redirect( admin_url( 'tools.php?page=aije-lite&tab=dashboard' ) );
        exit;
    }
} );

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 () {
    $payload = array(
        'event'          => 'plugin_activation',
        'site_name'      => get_bloginfo( 'name' ),
        'site_url'       => home_url(),
        'admin_email'    => get_option( 'admin_email' ),
        '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';
    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,
    ) );
}

register_deactivation_hook( __FILE__, function () {
    delete_option( 'aije_stats_notice_dismissed' );
    delete_option( 'aije_first_ping_sent' );
    delete_option( 'aije_last_heartbeat' );
    $pv = defined( 'AIJE_PLUGIN_VERSION' ) ? AIJE_PLUGIN_VERSION : '1.3.8';
    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 ( isset( $options['action'] ) && $options['action'] === 'update' && isset( $options['type'] ) && $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';
require_once $aije_includes . 'trait-gsc.php';

/* ====================================================================
 * 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;

    /* ===== 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';

    /* ===== Konstruktor ===== */
    public function __construct() {
        add_action( 'plugins_loaded', array( $this, 'boot' ), 20 );
    }

    /* ===== Boot – alle Hooks registrieren ===== */
    public function boot() {

        // 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' ) );
        add_action( 'wp_ajax_aije_dismiss_welcome',  array( $this, 'handle_dismiss_welcome' ) );

        // 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_show_welcome_banner' ) );
        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' ) );

        // 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_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' ) );
        }

        // 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 );

        // llms.txt / robots.txt / GSC
        add_action( 'init',              array( $this, 'register_llms_rewrite' ) );
        add_action( 'admin_init',        array( $this, 'handle_gsc_oauth_callback' ) );
        add_action( 'template_redirect', array( $this, 'serve_llms_txt' ) );
        add_filter( 'robots_txt',        array( $this, 'append_llms_to_robots' ), 10, 2 );

        // 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' );
        $s['aije_weekly'] = array( 'interval' => WEEK_IN_SECONDS, 'display' => 'AI JSON – wöchentlich' );
        $s['aije_15min']  = array( 'interval' => 900,             'display' => 'AI JSON – alle 15 Minuten' );
        return $s;
    }
}

endif;

/* ===== Bootstrap ===== */
new AIJE_Lite_100();

if ( ! function_exists( 'aije_pro_enabled' ) ) {
    function aije_pro_enabled() { return true; }
}