<?php
/**
 * Removes everything Waysill stored when the plugin is deleted: options, user meta, post meta and, from the Pro
 * build, its tables, options and scheduled events. Deleting the plugin is the user's request to remove its data.
 *
 * There is no uninstall.php: Freemius refuses plugins that have one, because WordPress then skips the uninstall hook
 * that Freemius registers. Freemius' hook fires its `after_uninstall` action instead, also for sites that never opted
 * in (it registers the hook on every deactivation by an admin), and waysill.php hooks the cleanup to it.
 *
 * @package Waysill
 */

defined( 'ABSPATH' ) || exit;

/** Removes the data of the current site. */
function waysill_uninstall_site(): void {
	global $wpdb;
	foreach ( array( 'waysill_settings', 'waysill_db_version', 'waysill_digest', 'waysill_scan', 'waysill_scan_lock' ) as $option ) {
		delete_option( $option );
	}
	delete_post_meta_by_key( '_waysill_result' );
	delete_post_meta_by_key( '_waysill_counts' );
	wp_clear_scheduled_hook( 'waysill_weekly_digest' );
	wp_clear_scheduled_hook( 'waysill_build_queue' );
	// The Pro tables; the free build never creates them, and IF EXISTS makes this a no-op there.
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange -- dropping our own tables on uninstall; there is no API for it.
	$wpdb->query( "DROP TABLE IF EXISTS {$wpdb->prefix}waysill_queue, {$wpdb->prefix}waysill_scans" );
}

/**
 * Freemius' `after_uninstall` action. Runs only inside Freemius' uninstall hook, which defines WP_FS__UNINSTALL_MODE
 * and has already checked that the user may manage plugins, so a stray call never deletes data.
 */
function waysill_uninstall_cleanup(): void {
	if ( ! defined( 'WP_FS__UNINSTALL_MODE' ) ) {
		return;
	}
	if ( is_multisite() ) {
		$sites = get_sites(
			array(
				'fields' => 'ids',
				'number' => 0,
			)
		);
		foreach ( $sites as $site_id ) {
			switch_to_blog( (int) $site_id );
			waysill_uninstall_site();
			restore_current_blog();
		}
	} else {
		waysill_uninstall_site();
	}
	// User meta lives in one table for the whole network.
	delete_metadata( 'user', 0, 'waysill_check_on_save', '', true );
}