<?php
/**
 * Disconnects the store from Storebridge Cloud and removes what the plugin stored locally.
 *
 * @package Storebridge
 */

declare( strict_types=1 );

namespace Storebridge\Connection;

defined( 'ABSPATH' ) || exit;

use Storebridge\Contract\ListingsChoice;
use Storebridge\Contract\ShopDeletion;
use Storebridge\Settings;
use Storebridge\Transport\CloudTransport;
use Storebridge\Transport\TransportException;

/**
 * Asks the cloud to delete the store's data, then forgets the credentials and the WooCommerce key
 * created for Storebridge Cloud. Product and order meta stay until the plugin is uninstalled, so
 * a reconnect keeps the links.
 */
final class Disconnector {

	/**
	 * Constructor.
	 *
	 * @param Settings       $settings  Plugin settings.
	 * @param CloudTransport $transport Cloud transport.
	 */
	public function __construct(
		private readonly Settings $settings,
		private readonly CloudTransport $transport
	) {}

	/**
	 * Disconnect. A store the cloud no longer knows (401/403) counts as disconnected.
	 *
	 * @param ListingsChoice|null $listings The merchant's choice for the TikTok listings; null on uninstall.
	 * @return ShopDeletion|null What the cloud scheduled, or null when it no longer knew the store.
	 * @throws TransportException When the cloud cannot be reached; nothing is removed locally then.
	 */
	public function disconnect( ?ListingsChoice $listings = null ): ?ShopDeletion {
		$deletion = null;
		if ( $this->settings->is_registered() ) {
			try {
				$deletion = $this->transport->delete_shop( $listings );
			} catch ( TransportException $e ) {
				if ( ! in_array( $e->http_status, array( 401, 403 ), true ) ) {
					throw $e;
				}
			}
		}
		self::delete_woo_key( $this->settings->woo_api_key_id() );
		if ( function_exists( 'as_unschedule_all_actions' ) ) {
			as_unschedule_all_actions( '', array(), 'storebridge' );
		}
		$this->settings->forget();
		delete_transient( 'storebridge_status_checked' );
		return $deletion;
	}

	/**
	 * Remove the WooCommerce REST key created for Storebridge Cloud.
	 *
	 * @param int|null $key_id Key id.
	 */
	public static function delete_woo_key( ?int $key_id ): void {
		global $wpdb;
		if ( null === $key_id || $key_id <= 0 ) {
			return;
		}
		// phpcs:ignore WordPress.DB.DirectDatabaseQuery -- WooCommerce offers no public API to delete keys.
		$wpdb->delete(
			$wpdb->prefix . 'woocommerce_api_keys',
			array(
				'key_id'      => $key_id,
				'description' => 'Storebridge Cloud',
			),
			array( '%d', '%s' )
		);
	}
}