<?php
/**
 * Fired when the plugin is uninstalled.
 */

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

require_once __DIR__ . '/includes/class-activitysignature-helpers.php';

/**
 * Plugin data removal.
 */
class Activitysignature_Uninstaller {

	/**
	 * Remove plugin data for the current site.
	 */
	public static function uninstall_site() {
		global $wpdb;

		/*
		 * Custom tables have no WP delete API; DROP is required on uninstall.
		 * Values are passed through $wpdb->prepare() with the %i identifier placeholder.
		 */
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange -- Uninstall must DROP the custom table; no WP schema API for plugin tables.
		$wpdb->query( $wpdb->prepare( 'DROP TABLE IF EXISTS %i', $wpdb->prefix . Activitysignature_Helpers::TABLE_SUFFIX ) );

		delete_option( Activitysignature_Helpers::OPTION_SETTINGS );
		delete_option( Activitysignature_Helpers::OPTION_BACKFILL );
		delete_option( Activitysignature_Helpers::OPTION_BACKFILL_RETRY );
		delete_option( Activitysignature_Helpers::OPTION_DB_VERSION );

		wp_clear_scheduled_hook( Activitysignature_Helpers::HOOK_CLEANUP );
		wp_clear_scheduled_hook( Activitysignature_Helpers::HOOK_BACKFILL );

		Activitysignature_Helpers::delete_site_transients();

		foreach ( array( 'created_date', 'last_update', 'last_login', 'last_login_checked', 'creation_recorded' ) as $name ) {
			delete_metadata( 'user', 0, Activitysignature_Helpers::get_user_meta_key( $name ), '', true );
		}
	}

	/**
	 * Remove plugin data for every site.
	 *
	 * Single-site installs run once. Multisite walks sites in bounded batches.
	 * DROP IF EXISTS and delete_option stay safe if a site never activated the plugin.
	 */
	public static function uninstall() {
		if ( ! is_multisite() ) {
			self::uninstall_site();

			return;
		}

		$offset = 0;
		$batch  = 100;
		do {
			$site_ids = get_sites(
				array(
					'fields' => 'ids',
					'number' => $batch,
					'offset' => $offset,
				)
			);
			foreach ( $site_ids as $site_id ) {
				switch_to_blog( (int) $site_id );
				self::uninstall_site();
				restore_current_blog();
			}
			$offset += $batch;
		} while ( count( $site_ids ) === $batch );
	}
}

Activitysignature_Uninstaller::uninstall();