<?php
/**
 * Uninstall handler — clean up all generated files and options.
 */

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

// Initialize WP_Filesystem first (needed for file cleanup)
global $wp_filesystem;
if ( empty( $wp_filesystem ) ) {
    require_once ABSPATH . 'wp-admin/includes/file.php';
    WP_Filesystem();
}

// Read settings BEFORE deleting them (IndexNow key needed for file cleanup)
$settings = get_option( 'airewp_settings', [] );

// Determine root path the WordPress way
require_once ABSPATH . 'wp-admin/includes/file.php';
$airewp_root = function_exists( 'get_home_path' ) ? get_home_path() : ABSPATH;

// Remove generated files
$files_to_remove = [
    $airewp_root . '.well-known/agents.json',
    $airewp_root . '.well-known/agent-card.json',
    $airewp_root . '.well-known/agent.json',
    $airewp_root . 'llms.txt',
    $airewp_root . 'llms-full.txt',
];

foreach ( $files_to_remove as $file ) {
    if ( $wp_filesystem->exists( $file ) ) {
        $wp_filesystem->delete( $file );
    }
}

// Remove IndexNow key file (dynamic name)
if ( ! empty( $settings['indexnow_key'] ) ) {
    $key_file = $airewp_root . $settings['indexnow_key'] . '.txt';
    if ( $wp_filesystem->exists( $key_file ) ) {
        $wp_filesystem->delete( $key_file );
    }
}

// Remove .well-known dir if empty
$well_known = $airewp_root . '.well-known/';
if ( $wp_filesystem->is_dir( $well_known ) && count( (array) $wp_filesystem->dirlist( $well_known ) ) === 0 ) {
    $wp_filesystem->rmdir( $well_known );
}

// Clear scheduled crons
wp_clear_scheduled_hook( 'airewp_cron_regenerate' );

// Clean up SEO post meta
global $wpdb;
$seo_meta_keys = [
    '_airewp_seo_title',
    '_airewp_seo_desc',
    '_airewp_seo_keyword',
    '_airewp_seo_noindex',
    '_airewp_seo_nofollow',
    '_airewp_seo_canonical',
];
$placeholders = implode( ',', array_fill( 0, count( $seo_meta_keys ), '%s' ) );
$wpdb->query(
    $wpdb->prepare(
        "DELETE FROM {$wpdb->postmeta} WHERE meta_key IN ($placeholders)", // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
        $seo_meta_keys
    )
);

// Remove options (AFTER file cleanup, since we needed indexnow_key above)
delete_option( 'airewp_settings' );
delete_option( 'airewp_crawler_stats' );
delete_option( 'airewp_crawler_log' );
delete_option( 'airewp_sitemap_last_generated' );

// Clean up transients
$wpdb->query(
    $wpdb->prepare(
        "DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
        '_transient_airewp_%',
        '_transient_timeout_airewp_%'
    )
);