import { Route } from './Route.js';
import { HTTPMethod } from './utils/constants.js';
import { Handler, HandlerCallbackOptions } from './_types.js';
import './_version.js';
/**
 * The Router can be used to process a FetchEvent through one or more
 * [Routes]{@link module:workbox-routing.Route} responding  with a Request if
 * a matching route exists.
 *
 * If no route matches a given a request, the Router will use a "default"
 * handler if one is defined.
 *
 * Should the matching Route throw an error, the Router will use a "catch"
 * handler if one is defined to gracefully deal with issues and respond with a
 * Request.
 *
 * If a request matches multiple routes, the **earliest** registered route will
 * be used to respond to the request.
 *
 * @memberof module:workbox-routing
 */
declare class Router {
    private readonly _routes;
    private _defaultHandler?;
    private _catchHandler?;
    /**
     * Initializes a new Router.
     */
    constructor();
    /**
     * @return {Map<string, Array<module:workbox-routing.Route>>} routes A `Map` of HTTP
     * method name ('GET', etc.) to an array of all the corresponding `Route`
     * instances that are registered.
     */
    get routes(): Map<HTTPMethod, Route[]>;
    /**
     * Adds a fetch event listener to respond to events when a route matches
     * the event's request.
     */
    addFetchListener(): void;
    /**
     * Adds a message event listener for URLs to cache from the window.
     * This is useful to cache resources loaded on the page prior to when the
     * service worker started controlling it.
     *
     * The format of the message data sent from the window should be as follows.
     * Where the `urlsToCache` array may consist of URL strings or an array of
     * URL string + `requestInit` object (the same as you'd pass to `fetch()`).
     *
     * ```
     * {
     *   type: 'CACHE_URLS',
     *   payload: {
     *     urlsToCache: [
     *       './script1.js',
     *       './script2.js',
     *       ['./script3.js', {mode: 'no-cors'}],
     *     ],
     *   },
     * }
     * ```
     */
    addCacheListener(): void;
    /**
     * Apply the routing rules to a FetchEvent object to get a Response from an
     * appropriate Route's handler.
     *
     * @param {Object} options
     * @param {Request} options.request The request to handle (this is usually
     *     from a fetch event, but it does not have to be).
     * @param {FetchEvent} [options.event] The event that triggered the request,
     *     if applicable.
     * @return {Promise<Response>|undefined} A promise is returned if a
     *     registered route can handle the request. If there is no matching
     *     route and there's no `defaultHandler`, `undefined` is returned.
     */
    handleRequest({ request, event }: {
        request: Request;
        event?: ExtendableEvent;
    }): Promise<Response> | undefined;
    /**
     * Checks a request and URL (and optionally an event) against the list of
     * registered routes, and if there's a match, returns the corresponding
     * route along with any params generated by the match.
     *
     * @param {Object} options
     * @param {URL} options.url
     * @param {Request} options.request The request to match.
     * @param {Event} [options.event] The corresponding event (unless N/A).
     * @return {Object} An object with `route` and `params` properties.
     *     They are populated if a matching route was found or `undefined`
     *     otherwise.
     */
    findMatchingRoute({ url, request, event }: {
        url: URL;
        request: Request;
        event?: ExtendableEvent;
    }): {
        route?: Route;
        params?: HandlerCallbackOptions['params'];
    };
    /**
     * Define a default `handler` that's called when no routes explicitly
     * match the incoming request.
     *
     * Without a default handler, unmatched requests will go against the
     * network as if there were no service worker present.
     *
     * @param {module:workbox-routing~handlerCallback} handler A callback
     * function that returns a Promise resulting in a Response.
     */
    setDefaultHandler(handler: Handler): void;
    /**
     * If a Route throws an error while handling a request, this `handler`
     * will be called and given a chance to provide a response.
     *
     * @param {module:workbox-routing~handlerCallback} handler A callback
     * function that returns a Promise resulting in a Response.
     */
    setCatchHandler(handler: Handler): void;
    /**
     * Registers a route with the router.
     *
     * @param {module:workbox-routing.Route} route The route to register.
     */
    registerRoute(route: Route): void;
    /**
     * Unregisters a route with the router.
     *
     * @param {module:workbox-routing.Route} route The route to unregister.
     */
    unregisterRoute(route: Route): void;
}
export { Router };