<?php
/**
 * Uninstall: remove everything the plugin stored.
 *
 * No remote calls happen here — uninstall can run on a site with no outbound
 * network, and the token is revoked by the Disconnect action instead.
 *
 * @package kasp
 */

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

/**
 * Delete this site's helpo data.
 *
 * @return void
 */
function kasp_uninstall_site() {
	$options = array(
		'kasp_connection',
		'kasp_settings',
		'kasp_source_map',
		'kasp_connection_broken',
		'kasp_sync_errors',
		'kasp_version',
		// Help center block (class-kasp-help-center.php). The page it made is
		// the site owner's content and stays.
		'kasp_help_center_stale',
		'kasp_help_center_page',
		'kasp_help_center_rewrite',
	);

	foreach ( $options as $option ) {
		delete_option( $option );
	}

	delete_transient( 'kasp_connect_state' );
	delete_transient( 'kasp_source_map_synced' );
	delete_transient( 'kasp_help_center' );
	delete_transient( 'kasp_help_center_backoff' );

	// Connect-state transients are per-user (`kasp_connect_state_{user_id}`),
	// so sweep them by prefix. With an external object cache they never hit
	// the options table and self-expire via their 15-minute TTL instead.
	global $wpdb;
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching -- one-off prefix sweep at uninstall; there is no API to delete transients by prefix and nothing to cache.
	$wpdb->query(
		$wpdb->prepare(
			"DELETE FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s",
			$wpdb->esc_like( '_transient_kasp_connect_state_' ) . '%',
			$wpdb->esc_like( '_transient_timeout_kasp_connect_state_' ) . '%'
		)
	);

	if ( function_exists( 'wp_unschedule_hook' ) ) {
		wp_unschedule_hook( 'kasp_sync_post' );
		wp_unschedule_hook( 'kasp_help_center_refresh' );
	}
}

if ( is_multisite() ) {
	$kasp_sites = get_sites(
		array(
			'fields' => 'ids',
			'number' => 0,
		)
	);

	foreach ( $kasp_sites as $kasp_site_id ) {
		switch_to_blog( (int) $kasp_site_id );
		kasp_uninstall_site();
		restore_current_blog();
	}
} else {
	kasp_uninstall_site();
}