<?php
/**
 * Uninstall routine.
 *
 * Runs only when the user deletes the plugin, and only removes data when the
 * "remove all data on uninstall" setting was switched on beforehand. Objects
 * already stored in the R2 bucket are never touched - they belong to the user's
 * Cloudflare account, not to this plugin.
 *
 * @package R2Clouder
 */

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

/**
 * Removes every trace of the plugin from the current site.
 *
 * @return void
 */
function r2clouder_uninstall_site() {
	global $wpdb;

	$settings = get_option( 'r2clouder_settings', array() );

	if ( ! is_array( $settings ) || empty( $settings['remove_data_on_uninstall'] ) ) {
		return;
	}

	wp_clear_scheduled_hook( 'r2clouder_run_queue' );
	delete_transient( 'r2clouder_worker_lock' );

	delete_post_meta_by_key( '_r2clouder_offload' );

	$table = esc_sql( $wpdb->prefix . 'r2clouder_jobs' );

	// A table name cannot be passed as a prepared value, and the name is built
	// from the trusted $wpdb prefix rather than from any request data.
	// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery, WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.SchemaChange, WordPress.DB.PreparedSQL.InterpolatedNotPrepared
	$wpdb->query( "DROP TABLE IF EXISTS `{$table}`" );

	delete_option( 'r2clouder_settings' );
	delete_option( 'r2clouder_credentials' );
	delete_option( 'r2clouder_connections' );
	delete_option( 'r2clouder_migration' );
	delete_option( 'r2clouder_onboarding_step' );
	delete_option( 'r2clouder_onboarding_complete' );
	delete_option( 'r2clouder_version' );
	delete_option( 'r2clouder_db_version' );
}

if ( is_multisite() ) {
	$r2clouder_site_ids = get_sites(
		array(
			'fields'                 => 'ids',
			'number'                 => 0,
			'update_site_meta_cache' => false,
		)
	);

	foreach ( $r2clouder_site_ids as $r2clouder_site_id ) {
		switch_to_blog( (int) $r2clouder_site_id );
		r2clouder_uninstall_site();
		restore_current_blog();
	}

	unset( $r2clouder_site_ids, $r2clouder_site_id );
} else {
	r2clouder_uninstall_site();
}