<?php
/**
 * Unauthenticated ping endpoint. Confirms Shiftora is installed.
 *
 * @package Shiftora\Api\Endpoints
 */

declare(strict_types=1);

namespace Shiftora\Api\Endpoints;

use Shiftora\Api\RestRegistrar;
use Shiftora\Support\TransferProtocol;
use WP_REST_Request;
use WP_REST_Response;

// Prevent direct file access.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class PingEndpoint {

	public function register(): void {
		register_rest_route(
			RestRegistrar::NAMESPACE,
			'/ping',
			[
				'methods'             => 'GET',
				'callback'            => [ $this, 'handle' ],
				'permission_callback' => '__return_true', // Public on purpose.
			]
		);
	}

	public function handle( WP_REST_Request $request ): WP_REST_Response {
		return new WP_REST_Response(
			[
				'shiftora'          => true,
				'timestamp'         => time(),
				'site_url'          => esc_url_raw( get_site_url() ),
				'version'           => SHIFTORA_VERSION,
				'transfer_protocol' => TransferProtocol::CURRENT,
				'allow_pull'        => (bool) get_option( 'shiftora_allow_pull', true ),
				'ajax_url'          => admin_url( 'admin-ajax.php' ),
				'signs_responses'   => true,
				'accepts_key_id'    => true,
			],
			200
		);
	}
}