<?php
/**
 * Uninstall handler.
 *
 * Removes the plugin's own settings and its search log table.
 *
 * Post and term embeddings are deliberately LEFT IN PLACE: they can
 * represent tens of thousands of generated vectors, and an accidental
 * uninstall should not cost a store its whole index (or the quota to
 * rebuild it). They live in post/term meta and can be cleared from the
 * Tools tab before uninstalling, if that is what the user wants.
 *
 * @since 1.31.0
 */

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

global $wpdb;

// Search log table (v1.31.0).
$ai_search_log_table = $wpdb->prefix . 'aisearch_logs';
$wpdb->query( "DROP TABLE IF EXISTS {$ai_search_log_table}" ); // phpcs:ignore WordPress.DB.DirectDatabaseQuery

// Scheduled retention cleanup.
$ai_search_cron = wp_next_scheduled( 'ai_search_purge_logs' );
if ( $ai_search_cron ) {
    wp_unschedule_event( $ai_search_cron, 'ai_search_purge_logs' );
}

// Settings.
$ai_search_options = [
    'ai_search_provider',
    'ai_search_api_key',
    'ai_search_service_token',
    'ai_search_openai_model',
    'ai_search_similarity_threshold',
    'ai_search_term_embeddings_enabled',
    'ai_search_term_weight',
    'ai_search_disabled_taxonomies',
    'ai_search_woocommerce_fields',
    'ai_search_setup_completed',
    'ai_search_show_setup_wizard',
    'ai_search_badge_public',
    'ai_search_registered_origin',
    'ai_search_woo_welcome_dismissed',
    'ai_search_blocks_notice_dismissed',
    'ai_search_logging_enabled',
    'ai_search_log_retention_days',
    'ai_search_log_db_version',
    // Removed in 1.28.0 but may linger on long-lived installs.
    'ai_search_hybrid_enabled',
    'ai_search_hybrid_balance',
];

foreach ( $ai_search_options as $ai_search_option ) {
    delete_option( $ai_search_option );
}

// Per-post-type custom field selections (ai_search_custom_fields_{post_type}).
$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
    "DELETE FROM {$wpdb->options} WHERE option_name LIKE 'ai_search_custom_fields_%'"
);

// Plugin transients.
$wpdb->query( // phpcs:ignore WordPress.DB.DirectDatabaseQuery
    "DELETE FROM {$wpdb->options}
     WHERE option_name LIKE '_transient_ai_search_%'
        OR option_name LIKE '_transient_timeout_ai_search_%'
        OR option_name LIKE '_transient_ai_service_%'
        OR option_name LIKE '_transient_timeout_ai_service_%'"
);