import * as eleva from 'eleva';

/**
 * Interface for router plugins.
 */
type RouterPlugin = {
    /**
     *           Unique plugin identifier.
     */
    name: string;
    /**
     * Plugin version (recommended to match router version).
     */
    version?: string | undefined;
    /**
     *           Installation function.
     */
    install: (router: Router, options?: Record<string, unknown>) => void;
    /**
     * Cleanup function called on router.destroy().
     */
    destroy?: ((router: Router) => void | Promise<void>) | undefined;
};
declare namespace RouterPlugin {
    let name: string;
    let version: string;
    let description: string;
    /**
     * Installs the RouterPlugin into an Eleva instance.
     *
     * @public
     * @param {Eleva} eleva - The Eleva instance.
     * @param {RouterOptions} options - Router configuration options.
     * @param {string} options.mount - A CSS selector for the main element where the app is mounted.
     * @param {RouteDefinition[]} options.routes - An array of route definitions.
     * @param {'hash' | 'query' | 'history'} [options.mode='hash'] - The routing mode.
     * @param {string} [options.queryParam='view'] - The query parameter to use in 'query' mode.
     * @param {string} [options.viewSelector='view'] - Base selector for the view element (matched as #id, .class, [data-*], or raw selector).
     * @param {boolean} [options.autoStart=true] - Whether to start the router automatically.
     * @param {NavigationGuard} [options.onBeforeEach] - A global guard executed before every navigation.
     * @param {RouteComponent} [options.globalLayout] - A global layout for all routes.
     * @returns {Router} The created router instance.
     * @throws {Error} If 'mount' option is not provided.
     * @throws {Error} If 'routes' option is not an array.
     * @throws {Error} If component registration fails during route processing.
     * @description
     * Registers route/layout components, sets `eleva.router`, and adds helpers
     * (`eleva.navigate`, `eleva.getCurrentRoute`, `eleva.getRouteParams`, `eleva.getRouteQuery`).
     * When `autoStart` is enabled, startup is scheduled via microtask.
     *
     * @example
     * // main.js
     * import Eleva from 'eleva';
     * import { RouterPlugin } from './plugins/RouterPlugin.js';
     *
     * const app = new Eleva('myApp');
     *
     * const HomePage = { template: () => `<h1>Home</h1>` };
     * const AboutPage = { template: () => `<h1>About Us</h1>` };
     *
     * app.use(RouterPlugin, {
     *  mount: '#app',
     *  routes: [
     *    { path: '/', component: HomePage },
     *    { path: '/about', component: AboutPage }
     *  ]
     * });
     */
    function install(eleva: Eleva, options?: RouterOptions): Router;
    /**
     * Uninstalls the plugin from the Eleva instance.
     *
     * @public
     * @async
     * @param {Eleva} eleva - The Eleva instance.
     * @returns {Promise<void>}
     * @description
     * Destroys the router instance, removes `eleva.router`, and deletes helper methods
     * (`eleva.navigate`, `eleva.getCurrentRoute`, `eleva.getRouteParams`, `eleva.getRouteQuery`).
     */
    function uninstall(eleva: Eleva): Promise<void>;
}

/**
 * Type imports from the Eleva core library.
 */
type Eleva = eleva.Eleva;
/**
 * Type imports from the Eleva core library.
 */
type ComponentDefinition = eleva.ComponentDefinition;
/**
 * Type imports from the Eleva core library.
 */
type Emitter = eleva.Emitter;
/**
 * Type imports from the Eleva core library.
 */
type MountResult = eleva.MountResult;
/**
 * Type imports from the Eleva core library.
 */
type UnsubscribeFunction = eleva.UnsubscribeFunction;
/**
 * Generic type import.
 */
type Signal<T> = eleva.Signal<T>;
/**
 * The routing mode determines how the router manages URL state.
 * - `hash`: Uses URL hash (e.g., `/#/path`) - works without server config
 * - `history`: Uses HTML5 History API (e.g., `/path`) - requires server config
 * - `query`: Uses query parameters (e.g., `?view=/path`) - useful for embedded apps
 */
type RouterMode = "hash" | "history" | "query";
/**
 * Route parameters extracted from the URL path.
 */
type RouteParams = Record<string, string>;
/**
 * Query parameters from the URL query string.
 */
type QueryParams = Record<string, string>;
/**
 * Navigation input parameters supporting multiple value types.
 */
type NavigationParams = Record<string, string | number | boolean>;
/**
 * Function signature for programmatic navigation.
 */
type NavigateFunction = (location: string | NavigationTarget, params?: NavigationParams) => Promise<boolean>;
/**
 * Router configuration options.
 */
type RouterOptions = {
    /**
     * The routing mode to use.
     */
    mode?: RouterMode | undefined;
    /**
     * Query parameter name for 'query' mode.
     */
    queryParam?: string | undefined;
    /**
     * Base selector for the view element.
     */
    viewSelector?: string | undefined;
    /**
     *           CSS selector for the mount point element.
     */
    mount: string;
    /**
     *           Array of route definitions.
     */
    routes: RouteDefinition[];
    /**
     * Default layout for all routes.
     */
    globalLayout?: RouteComponent | undefined;
    /**
     * Global navigation guard.
     */
    onBeforeEach?: NavigationGuard | undefined;
    /**
     * Whether to start the router automatically.
     */
    autoStart?: boolean | undefined;
};
/**
 * Object describing a navigation target for `router.navigate()`.
 */
type NavigationTarget = {
    /**
     *           The target path (can include params like '/users/:id').
     */
    path: string;
    /**
     * Route parameters to inject.
     */
    params?: NavigationParams | undefined;
    /**
     * Query parameters to append.
     */
    query?: NavigationParams | undefined;
    /**
     * Whether to replace current history entry.
     */
    replace?: boolean | undefined;
    /**
     * History state to pass.
     */
    state?: unknown;
};
/**
 * Saved scroll position.
 */
type ScrollPosition = {
    /**
     *           Horizontal scroll position.
     */
    x: number;
    /**
     *           Vertical scroll position.
     */
    y: number;
};
/**
 * Internal representation of a parsed route path segment.
 */
type RouteSegment = {
    /**
     *           The segment type.
     */
    type: "static" | "param";
    /**
     * The segment value (static segments).
     */
    value?: string | undefined;
    /**
     * The parameter name (param segments).
     */
    name?: string | undefined;
};
/**
 * Result of matching a path against route definitions.
 */
type RouteMatch = {
    /**
     *           The matched route definition.
     */
    route: RouteDefinition;
    /**
     *           The extracted route parameters.
     */
    params: RouteParams;
};
/**
 * Arbitrary metadata attached to routes for use in guards and components.
 */
type RouteMeta = Record<string, unknown>;
/**
 * Interface for the router's error handling system.
 */
type RouterErrorHandler = {
    /**
     *           Throws a formatted error.
     */
    handle: (error: Error, context: string, details?: Record<string, unknown>) => void;
    /**
     *           Logs a warning.
     */
    warn: (message: string, details?: Record<string, unknown>) => void;
    /**
     *           Logs an error without throwing.
     */
    log: (message: string, error: Error, details?: Record<string, unknown>) => void;
};
/**
 * Callback for `router:beforeEach` event.
 */
type NavigationContextCallback = (context: NavigationContext) => void | Promise<void>;
/**
 * Callback for `router:beforeResolve` and `router:afterResolve` events.
 */
type ResolveContextCallback = (context: ResolveContext) => void | Promise<void>;
/**
 * Callback for `router:beforeRender` and `router:afterRender` events.
 */
type RenderContextCallback = (context: RenderContext) => void | Promise<void>;
/**
 * Callback for `router:scroll` event.
 */
type ScrollContextCallback = (context: ScrollContext) => void | Promise<void>;
/**
 * Callback for `router:afterEnter`, `router:afterLeave`, `router:afterEach` events.
 */
type RouteChangeCallback = (to: RouteLocation, from: RouteLocation | null) => void | Promise<void>;
/**
 * Router context injected into component setup as `ctx.router`.
 */
type RouterContext = {
    /**
     *           Programmatic navigation function.
     */
    navigate: NavigateFunction;
    /**
     *           Reactive signal for current route.
     */
    current: Signal<RouteLocation | null>;
    /**
     *           Reactive signal for previous route.
     */
    previous: Signal<RouteLocation | null>;
    /**
     *           Current route params (getter).
     */
    params: RouteParams;
    /**
     *           Current route query (getter).
     */
    query: QueryParams;
    /**
     *           Current route path (getter).
     */
    path: string;
    /**
     *           Current routed URL string (getter).
     */
    fullUrl: string;
    /**
     *           Current route meta (getter).
     */
    meta: RouteMeta;
};
/**
 * Callback for `router:error` event.
 */
type RouterErrorCallback = (error: Error, to?: RouteLocation | undefined, from?: RouteLocation | null | undefined) => void | Promise<void>;
/**
 * Callback for `router:ready` event.
 */
type RouterReadyCallback = (router: Router) => void | Promise<void>;
/**
 * Callback for `router:routeAdded` event.
 */
type RouteAddedCallback = (route: RouteDefinition) => void | Promise<void>;
/**
 * Callback for `router:routeRemoved` event.
 */
type RouteRemovedCallback = (route: RouteDefinition) => void | Promise<void>;
/**
 * Represents the current or target location in the router.
 */
type RouteLocation = {
    /**
     *           The path of the route (e.g., '/users/123').
     */
    path: string;
    /**
     *           Query parameters as key-value pairs.
     */
    query: QueryParams;
    /**
     *           The routed URL string (path plus query).
     */
    fullUrl: string;
    /**
     *           Dynamic route parameters.
     */
    params: RouteParams;
    /**
     *           Metadata associated with the matched route.
     */
    meta: RouteMeta;
    /**
     * The optional name of the matched route.
     */
    name?: string | undefined;
    /**
     *           The raw route definition that was matched.
     */
    matched: RouteDefinition;
};
/**
 * Return value of a navigation guard.
 * - `true` or `undefined/void`: Allow navigation
 * - `false`: Abort navigation
 * - `string`: Redirect to path
 * - `NavigationTarget`: Redirect with options
 */
type NavigationGuardResult = boolean | string | NavigationTarget | void;
/**
 * Navigation guard function that controls navigation flow.
 */
type NavigationGuard = (to: RouteLocation, from: RouteLocation | null) => NavigationGuardResult | Promise<NavigationGuardResult>;
/**
 * Navigation hook for side effects. Does not affect navigation flow.
 */
type NavigationHook = (to: RouteLocation, from: RouteLocation | null) => void | Promise<void>;
/**
 * Context object for navigation events that plugins can modify.
 */
type NavigationContext = {
    /**
     *           The target route location.
     */
    to: RouteLocation;
    /**
     *           The source route location.
     */
    from: RouteLocation | null;
    /**
     *           Whether navigation has been cancelled.
     */
    cancelled: boolean;
    /**
     *           Redirect target if set.
     */
    redirectTo: string | NavigationTarget | null;
};
/**
 * Context object for component resolution events.
 */
type ResolveContext = {
    /**
     *           The target route location.
     */
    to: RouteLocation;
    /**
     *           The source route location.
     */
    from: RouteLocation | null;
    /**
     *           The matched route definition.
     */
    route: RouteDefinition;
    /**
     *           The resolved layout component (available in afterResolve).
     */
    layoutComponent: ComponentDefinition | null;
    /**
     *           The resolved page component (available in afterResolve).
     */
    pageComponent: ComponentDefinition | null;
    /**
     *           Whether navigation has been cancelled.
     */
    cancelled: boolean;
    /**
     *           Redirect target if set.
     */
    redirectTo: string | NavigationTarget | null;
};
/**
 * Context object for render events.
 */
type RenderContext = {
    /**
     *           The target route location.
     */
    to: RouteLocation;
    /**
     *           The source route location.
     */
    from: RouteLocation | null;
    /**
     *           The layout component being rendered.
     */
    layoutComponent: ComponentDefinition | null;
    /**
     *           The page component being rendered.
     */
    pageComponent: ComponentDefinition;
};
/**
 * Context object for scroll events.
 */
type ScrollContext = {
    /**
     *           The target route location.
     */
    to: RouteLocation;
    /**
     *           The source route location.
     */
    from: RouteLocation | null;
    /**
     *           Saved position (back/forward nav).
     */
    savedPosition: {
        x: number;
        y: number;
    } | null;
};
/**
 * A component that can be rendered for a route.
 * - `string`: Name of a registered component
 * - `ComponentDefinition`: Inline component definition
 * - `() => ComponentDefinition`: Factory function returning a component
 * - `() => Promise<ComponentDefinition>`: Async factory function
 * - `() => Promise<{default: ComponentDefinition}>`: Lazy-loaded module (e.g., `() => import('./Page.js')`)
 */
type RouteComponent = string | ComponentDefinition | (() => ComponentDefinition | Promise<ComponentDefinition | {
    default: ComponentDefinition;
}>);
/**
 * Defines a route in the application.
 */
type RouteDefinition = {
    /**
     *           URL path pattern. Supports:
     *           - Static: '/about'
     *           - Dynamic params: '/users/:id'
     *           - Wildcard: '*' (catch-all, conventionally last)
     */
    path: string;
    /**
     *           The component to render for this route.
     */
    component: RouteComponent;
    /**
     * Optional layout component to wrap the route component.
     */
    layout?: RouteComponent | undefined;
    /**
     * Optional route name for programmatic navigation.
     */
    name?: string | undefined;
    /**
     * Optional metadata (auth flags, titles, etc.).
     */
    meta?: RouteMeta | undefined;
    /**
     * Route-specific guard before entering.
     */
    beforeEnter?: NavigationGuard | undefined;
    /**
     * Hook after entering and component is mounted.
     */
    afterEnter?: NavigationHook | undefined;
    /**
     * Guard before leaving this route.
     */
    beforeLeave?: NavigationGuard | undefined;
    /**
     * Hook after leaving and component is unmounted.
     */
    afterLeave?: NavigationHook | undefined;
    /**
     * Internal: parsed path segments (added by router).
     */
    segments?: RouteSegment[] | undefined;
};
/**
 * Represents the current or target location in the router.
 * @typedef {Object} RouteLocation
 * @property {string} path
 *           The path of the route (e.g., '/users/123').
 * @property {QueryParams} query
 *           Query parameters as key-value pairs.
 * @property {string} fullUrl
 *           The routed URL string (path plus query).
 * @property {RouteParams} params
 *           Dynamic route parameters.
 * @property {RouteMeta} meta
 *           Metadata associated with the matched route.
 * @property {string} [name]
 *           The optional name of the matched route.
 * @property {RouteDefinition} matched
 *           The raw route definition that was matched.
 * @description Represents the current or target location in the router.
 */
/**
 * Return value of a navigation guard.
 * - `true` or `undefined/void`: Allow navigation
 * - `false`: Abort navigation
 * - `string`: Redirect to path
 * - `NavigationTarget`: Redirect with options
 * @typedef {boolean | string | NavigationTarget | void} NavigationGuardResult
 */
/**
 * Navigation guard function that controls navigation flow.
 * @callback NavigationGuard
 * @param {RouteLocation} to
 *        The target route location.
 * @param {RouteLocation | null} from
 *        The source route location (null on initial).
 * @returns {NavigationGuardResult | Promise<NavigationGuardResult>}
 * @description A function that controls navigation flow. Runs before navigation is confirmed.
 * @example
 * // Simple auth guard
 * const authGuard = (to, from) => {
 *   if (to.meta.requiresAuth && !isLoggedIn()) {
 *     return '/login'; // Redirect
 *   }
 *   // Allow navigation (implicit return undefined)
 * };
 */
/**
 * Navigation hook for side effects. Does not affect navigation flow.
 * @callback NavigationHook
 * @param {RouteLocation} to
 *        The target route location.
 * @param {RouteLocation | null} from
 *        The source route location.
 * @returns {void | Promise<void>}
 * @description A lifecycle hook for side effects. Does not affect navigation flow.
 * @example
 * // Analytics hook
 * const analyticsHook = (to, from) => {
 *   analytics.trackPageView(to.path);
 * };
 */
/**
 * Interface for router plugins.
 * @typedef {Object} RouterPlugin
 * @property {string} name
 *           Unique plugin identifier.
 * @property {string} [version]
 *           Plugin version (recommended to match router version).
 * @property {(router: Router, options?: Record<string, unknown>) => void} install
 *           Installation function.
 * @property {(router: Router) => void | Promise<void>} [destroy]
 *           Cleanup function called on router.destroy().
 * @description Interface for router plugins. Plugins can extend router functionality.
 * @example
 * const AnalyticsPlugin = {
 *   name: 'analytics',
 *   version: '1.0.0',
 *   install(router, options) {
 *     router.emitter.on('router:afterEach', (to, from) => {
 *       analytics.track(to.path);
 *     });
 *   }
 * };
 */
/**
 * Context object for navigation events that plugins can modify.
 * @typedef {Object} NavigationContext
 * @property {RouteLocation} to
 *           The target route location.
 * @property {RouteLocation | null} from
 *           The source route location.
 * @property {boolean} cancelled
 *           Whether navigation has been cancelled.
 * @property {string | NavigationTarget | null} redirectTo
 *           Redirect target if set.
 * @description Passed to navigation events. Plugins can modify to control navigation flow.
 */
/**
 * Context object for component resolution events.
 * @typedef {Object} ResolveContext
 * @property {RouteLocation} to
 *           The target route location.
 * @property {RouteLocation | null} from
 *           The source route location.
 * @property {RouteDefinition} route
 *           The matched route definition.
 * @property {ComponentDefinition | null} layoutComponent
 *           The resolved layout component (available in afterResolve).
 * @property {ComponentDefinition | null} pageComponent
 *           The resolved page component (available in afterResolve).
 * @property {boolean} cancelled
 *           Whether navigation has been cancelled.
 * @property {string | NavigationTarget | null} redirectTo
 *           Redirect target if set.
 * @description Passed to component resolution events.
 */
/**
 * Context object for render events.
 * @typedef {Object} RenderContext
 * @property {RouteLocation} to
 *           The target route location.
 * @property {RouteLocation | null} from
 *           The source route location.
 * @property {ComponentDefinition | null} layoutComponent
 *           The layout component being rendered.
 * @property {ComponentDefinition} pageComponent
 *           The page component being rendered.
 * @description Passed to render events.
 */
/**
 * Context object for scroll events.
 * @typedef {Object} ScrollContext
 * @property {RouteLocation} to
 *           The target route location.
 * @property {RouteLocation | null} from
 *           The source route location.
 * @property {{x: number, y: number} | null} savedPosition
 *           Saved position (back/forward nav).
 * @description Passed to scroll events for plugins to handle scroll behavior.
 */
/**
 * A component that can be rendered for a route.
 * - `string`: Name of a registered component
 * - `ComponentDefinition`: Inline component definition
 * - `() => ComponentDefinition`: Factory function returning a component
 * - `() => Promise<ComponentDefinition>`: Async factory function
 * - `() => Promise<{default: ComponentDefinition}>`: Lazy-loaded module (e.g., `() => import('./Page.js')`)
 * @typedef {string | ComponentDefinition | (() => ComponentDefinition | Promise<ComponentDefinition | {default: ComponentDefinition}>)} RouteComponent
 */
/**
 * Defines a route in the application.
 * @typedef {Object} RouteDefinition
 * @property {string} path
 *           URL path pattern. Supports:
 *           - Static: '/about'
 *           - Dynamic params: '/users/:id'
 *           - Wildcard: '*' (catch-all, conventionally last)
 * @property {RouteComponent} component
 *           The component to render for this route.
 * @property {RouteComponent} [layout]
 *           Optional layout component to wrap the route component.
 * @property {string} [name]
 *           Optional route name for programmatic navigation.
 * @property {RouteMeta} [meta]
 *           Optional metadata (auth flags, titles, etc.).
 * @property {NavigationGuard} [beforeEnter]
 *           Route-specific guard before entering.
 * @property {NavigationHook} [afterEnter]
 *           Hook after entering and component is mounted.
 * @property {NavigationGuard} [beforeLeave]
 *           Guard before leaving this route.
 * @property {NavigationHook} [afterLeave]
 *           Hook after leaving and component is unmounted.
 * @property {RouteSegment[]} [segments]
 *           Internal: parsed path segments (added by router).
 * @description Defines a route in the application.
 * @note Nested routes are not supported. Use shared layouts with flat routes instead.
 * @example
 * // Static route
 * { path: '/about', component: AboutPage }
 *
 * // Dynamic route with params
 * { path: '/users/:id', component: UserPage, meta: { requiresAuth: true } }
 *
 * // Lazy-loaded route with layout
 * {
 *   path: '/dashboard',
 *   component: () => import('./Dashboard.js'),
 *   layout: DashboardLayout,
 *   beforeEnter: (to, from) => isLoggedIn() || '/login'
 * }
 *
 * // Catch-all 404 route (conventionally last)
 * { path: '*', component: NotFoundPage }
 */
/**
 * @class 🛤️ Router
 * @classdesc A powerful, reactive, and flexible Router Plugin for Eleva.
 * This class manages all routing logic, including state, navigation, and rendering.
 *
 * ## Features
 * - Multiple routing modes (hash, history, query)
 * - Reactive route state via Signals
 * - Navigation guards and lifecycle hooks
 * - Lazy-loaded components
 * - Layout system
 * - Plugin architecture
 * - Scroll position management
 *
 * ## Events Reference
 * | Event | Callback Type | Can Block | Description |
 * |-------|--------------|-----------|-------------|
 * | `router:ready` | {@link RouterReadyCallback} | No | Router initialized |
 * | `router:beforeEach` | {@link NavigationContextCallback} | Yes | Before guards run |
 * | `router:beforeResolve` | {@link ResolveContextCallback} | Yes | Before component loading |
 * | `router:afterResolve` | {@link ResolveContextCallback} | No | After components loaded |
 * | `router:afterLeave` | {@link RouteChangeCallback} | No | After leaving route |
 * | `router:beforeRender` | {@link RenderContextCallback} | No | Before DOM update |
 * | `router:afterRender` | {@link RenderContextCallback} | No | After DOM update |
 * | `router:scroll` | {@link ScrollContextCallback} | No | For scroll behavior |
 * | `router:afterEnter` | {@link RouteChangeCallback} | No | After entering route |
 * | `router:afterEach` | {@link RouteChangeCallback} | No | Navigation complete |
 * | `router:error` | {@link RouterErrorCallback} | No | Navigation error |
 * | `router:routeAdded` | {@link RouteAddedCallback} | No | Dynamic route added |
 * | `router:routeRemoved` | {@link RouteRemovedCallback} | No | Dynamic route removed |
 *
 * ## Reactive Signals
 * - `currentRoute: Signal<RouteLocation | null>` - Current route info
 * - `previousRoute: Signal<RouteLocation | null>` - Previous route info
 * - `currentParams: Signal<RouteParams>` - Current route params
 * - `currentQuery: Signal<QueryParams>` - Current query params
 * - `currentLayout: Signal<MountResult | null>` - Mounted layout instance
 * - `currentView: Signal<MountResult | null>` - Mounted view instance
 * - `isReady: Signal<boolean>` - Router readiness state
 *
 * @note Internal API Access Policy:
 * As a core Eleva plugin, the Router may access internal Eleva APIs (prefixed with _)
 * such as `eleva._components`. This is intentional and these internal APIs are
 * considered stable for official plugins. Third-party plugins should avoid
 * accessing internal APIs as they may change without notice.
 *
 * @example
 * // Basic setup
 * const router = new Router(eleva, {
 *   mode: 'hash',
 *   mount: '#app',
 *   routes: [
 *     { path: '/', component: HomePage },
 *     { path: '/users/:id', component: UserPage },
 *     { path: '*', component: NotFoundPage }
 *   ]
 * });
 *
 * // Start router
 * await router.start();
 *
 * // Navigate programmatically
 * const success = await router.navigate('/users/123');
 *
 * // Watch for route changes
 * router.currentRoute.watch((route) => {
 *   document.title = route?.meta?.title || 'My App';
 * });
 *
 * @private
 */
declare class Router {
    /**
     * Creates an instance of the Router.
     * @param {Eleva} eleva - The Eleva framework instance.
     * @param {RouterOptions} options - The configuration options for the router.
     * @throws {Error} If the routing mode is invalid.
     */
    constructor(eleva: Eleva, options?: RouterOptions);
    /** @type {Eleva} The Eleva framework instance. */
    eleva: Eleva;
    /** @type {RouterOptions} The merged router options. */
    options: RouterOptions;
    /** @private @type {RouteDefinition[]} The processed list of route definitions. */
    private routes;
    /** @private @type {Emitter} The shared Eleva event emitter for global hooks. */
    private emitter;
    /** @private @type {boolean} A flag indicating if the router has been started. */
    private isStarted;
    /** @private @type {boolean} A flag to prevent navigation loops from history events. */
    private _isNavigating;
    /** @private @type {number} Counter for tracking navigation operations to prevent race conditions. */
    private _navigationId;
    /** @private @type {UnsubscribeFunction[]} A collection of cleanup functions for event listeners. */
    private eventListeners;
    /** @type {Signal<RouteLocation | null>} A reactive signal holding the current route's information. */
    currentRoute: Signal<RouteLocation | null>;
    /** @type {Signal<RouteLocation | null>} A reactive signal holding the previous route's information. */
    previousRoute: Signal<RouteLocation | null>;
    /** @type {Signal<RouteParams>} A reactive signal holding the current route's parameters. */
    currentParams: Signal<RouteParams>;
    /** @type {Signal<QueryParams>} A reactive signal holding the current route's query parameters. */
    currentQuery: Signal<QueryParams>;
    /** @type {Signal<MountResult | null>} A reactive signal for the currently mounted layout instance. */
    currentLayout: Signal<MountResult | null>;
    /** @type {Signal<MountResult | null>} A reactive signal for the currently mounted view (page) instance. */
    currentView: Signal<MountResult | null>;
    /** @type {Signal<boolean>} A reactive signal indicating if the router is ready (started and initial navigation complete). */
    isReady: Signal<boolean>;
    /** @private @type {Map<string, RouterPlugin>} Map of registered plugins by name. */
    private plugins;
    /** @private @type {NavigationGuard[]} Array of global before-each navigation guards. */
    private _beforeEachGuards;
    /** @type {RouterErrorHandler} The error handler instance. Can be overridden by plugins. */
    errorHandler: RouterErrorHandler;
    /** @private @type {Map<string, {x: number, y: number}>} Saved scroll positions by route path. */
    private _scrollPositions;
    /**
     * Validates the provided router options.
     * @private
     * @throws {Error} If the routing mode is invalid.
     */
    private _validateOptions;
    /**
     * Pre-processes route definitions to parse their path segments for efficient matching.
     * @private
     * @param {RouteDefinition[]} routes - The raw route definitions.
     * @returns {RouteDefinition[]} The processed routes.
     */
    private _processRoutes;
    /**
     * Parses a route path string into an array of static and parameter segments.
     * @private
     * @param {string} path - The path pattern to parse.
     * @returns {{type: 'static' | 'param', value?: string, name?: string}[]} An array of segment objects.
     * @throws {Error} If the route path is not a valid string.
     */
    private _parsePathIntoSegments;
    /**
     * Finds the view element within a container using multiple selector strategies.
     * @private
     * @param {HTMLElement} container - The parent element to search within.
     * @returns {HTMLElement} The found view element or the container itself as a fallback.
     */
    private _findViewElement;
    /**
     * Starts the router, initializes event listeners, and performs the initial navigation.
     * @returns {Promise<Router>} The router instance for method chaining.
     * @listens window:hashchange In hash mode, triggers route changes.
     * @listens window:popstate In history/query mode, triggers route changes.
     * @emits router:ready When initialization completes successfully.
     * @see destroy - Stop the router and clean up listeners.
     * @see navigate - Programmatically navigate to a route.
     *
     * @example
     * // Basic usage
     * await router.start();
     *
     * // Method chaining
     * await router.start().then(r => r.navigate('/home'));
     *
     * // Reactive readiness
     * router.isReady.watch((ready) => {
     *   if (ready) console.log('Router is ready!');
     * });
     */
    start(): Promise<Router>;
    /**
     * Stops the router and cleans up event listeners.
     * Unmounts the current layout instance if present.
     * @async
     * @returns {Promise<void>}
     * @see start - Restart the router after destroying.
     */
    destroy(): Promise<void>;
    /**
     * Alias for destroy(). Stops the router and cleans up all resources.
     * Provided for semantic consistency (start/stop pattern).
     * @async
     * @returns {Promise<void>}
     *
     * @example
     * await router.start();
     * // ... later
     * await router.stop();
     */
    stop(): Promise<void>;
    /**
     * Programmatically navigates to a new route.
     * @async
     * @param {string | NavigationTarget} location - The target location as a path string or navigation target object.
     * @param {NavigationParams} [params] - Route parameters (only used when location is a string).
     * @returns {Promise<boolean>} True if navigation succeeded, false if blocked by guards or failed.
     * @emits router:error When navigation fails due to an exception.
     * @see start - Initialize the router before navigating.
     * @see currentRoute - Access the current route after navigation.
     *
     * @example
     * // Basic navigation
     * await router.navigate('/users/123');
     *
     * // Check if navigation succeeded
     * const success = await router.navigate('/protected');
     * if (!success) {
     *   console.log('Navigation was blocked by a guard');
     * }
     *
     * // Navigate with options
     * await router.navigate({
     *   path: '/users/:id',
     *   params: { id: '123' },
     *   query: { tab: 'profile' },
     *   replace: true
     * });
     */
    navigate(location: string | NavigationTarget, params?: NavigationParams): Promise<boolean>;
    /**
     * Builds a URL for query mode.
     * @private
     * @param {string} path - The path to set as the query parameter.
     * @returns {string} The full URL with the updated query string.
     */
    private _buildQueryUrl;
    /**
     * Checks if the target route is identical to the current route.
     * @private
     * @param {string} path - The target path with query string.
     * @param {object} params - The target params.
     * @param {object} query - The target query.
     * @returns {boolean} True if the routes are the same.
     */
    private _isSameRoute;
    /**
     * Injects dynamic parameters into a path string.
     * Replaces `:param` placeholders with URL-encoded values from the params object.
     *
     * @private
     * @param {string} path - The path pattern containing `:param` placeholders.
     * @param {RouteParams} params - Key-value pairs to inject into the path.
     * @returns {string} The path with all parameters replaced.
     *
     * @example
     * this._buildPath('/users/:id/posts/:postId', { id: '123', postId: '456' });
     * // Returns: '/users/123/posts/456'
     */
    private _buildPath;
    /**
     * The handler for browser-initiated route changes (e.g., back/forward buttons).
     *
     * @private
     * @async
     * @param {boolean} [isPopState=true] - Whether this is a popstate event (back/forward navigation).
     * @returns {Promise<void>}
     * @emits router:error When route change handling fails.
     */
    private _handleRouteChange;
    /**
     * Manages the core navigation lifecycle. Runs guards before committing changes.
     *
     * @private
     * @async
     * @param {string} fullPath - The full path (e.g., '/users/123?foo=bar') to navigate to.
     * @param {boolean} [isPopState=false] - Whether this navigation was triggered by popstate (back/forward).
     * @returns {Promise<boolean>} `true` if navigation succeeded, `false` if aborted.
     * @emits router:error When no matching route is found (and no catch-all route exists),
     * or when an error occurs during navigation.
     * @emits router:beforeResolve Before component resolution (can block/redirect).
     * @emits router:afterResolve After components are resolved.
     * @emits router:afterLeave After leaving the previous route.
     * @emits router:beforeRender Before DOM rendering.
     * @emits router:afterRender After DOM rendering completes.
     * @emits router:scroll After render, for scroll behavior handling.
     * @emits router:afterEnter After entering the new route.
     * @emits router:afterEach After navigation completes successfully.
     * @see _runGuards - Guard execution.
     * @see _resolveComponents - Component resolution.
     * @see _render - DOM rendering.
     */
    private _proceedWithNavigation;
    /**
     * Executes all applicable navigation guards for a transition in order.
     * Guards are executed in the following order:
     * 1. Global beforeEach event (emitter-based, can block via context)
     * 2. Global beforeEach guards (registered via onBeforeEach)
     * 3. Route-specific beforeLeave guard (from the route being left)
     * 4. Route-specific beforeEnter guard (from the route being entered)
     *
     * @private
     * @param {RouteLocation} to - The target route location.
     * @param {RouteLocation | null} from - The current route location (null on initial navigation).
     * @param {RouteDefinition} route - The matched route definition.
     * @returns {Promise<boolean>} `false` if navigation should be aborted.
     * @emits router:beforeEach Before guards run (can block/redirect via context).
     */
    private _runGuards;
    /**
     * Resolves a string component definition to a component object.
     * @private
     * @param {string} def - The component name to resolve.
     * @returns {ComponentDefinition} The resolved component.
     * @throws {Error} If the component is not registered.
     *
     * @note Core plugins (Router, Attr, Store) may access eleva._components
     * directly. This is intentional and stable for official Eleva plugins shipped
     * with the framework. Third-party plugins should use eleva.component() for
     * registration and avoid direct access to internal APIs.
     */
    private _resolveStringComponent;
    /**
     * Resolves a function component definition to a component object.
     * @private
     * @async
     * @param {() => ComponentDefinition | Promise<ComponentDefinition | { default: ComponentDefinition }>} def - The function to resolve.
     * @returns {Promise<ComponentDefinition>} The resolved component.
     * @throws {Error} If the function fails to load the component.
     */
    private _resolveFunctionComponent;
    /**
     * Validates a component definition object.
     * @private
     * @param {unknown} def - The component definition to validate.
     * @returns {ComponentDefinition} The validated component.
     * @throws {Error} If the component definition is invalid.
     */
    private _validateComponentDefinition;
    /**
     * Resolves a component definition to a component object.
     * @private
     * @param {unknown} def - The component definition to resolve.
     * @returns {Promise<ComponentDefinition | null>} The resolved component or null.
     */
    private _resolveComponent;
    /**
     * Asynchronously resolves the layout and page components for a route.
     * @private
     * @async
     * @param {RouteDefinition} route - The route to resolve components for.
     * @returns {Promise<{layoutComponent: ComponentDefinition | null, pageComponent: ComponentDefinition}>}
     * @throws {Error} If page component cannot be resolved.
     */
    private _resolveComponents;
    /**
     * Renders the components for the current route into the DOM.
     *
     * Rendering algorithm:
     * 1. Find the mount element using options.mount selector
     * 2. If layoutComponent exists:
     *    a. Mount layout to mount element
     *    b. Find view element within layout (using viewSelector)
     *    c. Mount page component to view element
     * 3. If no layoutComponent:
     *    a. Mount page component directly to mount element
     *    b. Set currentLayout to null
     *
     * @private
     * @async
     * @param {ComponentDefinition | null} layoutComponent - The pre-loaded layout component.
     * @param {ComponentDefinition} pageComponent - The pre-loaded page component.
     * @returns {Promise<void>}
     * @throws {Error} If mount element is not found in the DOM.
     * @throws {Error} If component mounting fails (propagated from eleva.mount).
     */
    private _render;
    /**
     * Creates a getter function for router context properties.
     * @private
     * @param {string} property - The property name to access.
     * @param {unknown} defaultValue - The default value if property is undefined.
     * @returns {() => unknown} A getter function.
     */
    private _createRouteGetter;
    /**
     * Wraps a component definition to inject router-specific context into its setup function.
     * @private
     * @param {ComponentDefinition} component - The component to wrap.
     * @returns {ComponentDefinition} The wrapped component definition.
     */
    private _wrapComponent;
    /**
     * Recursively wraps all child components to ensure they have access to router context.
     * String component references are returned as-is (context injected during mount).
     * Objects are wrapped with router context and their children are recursively wrapped.
     *
     * @private
     * @param {ComponentDefinition | string} component - The component to wrap (can be a definition object or a registered component name).
     * @returns {ComponentDefinition | string} The wrapped component definition or the original string reference.
     * @see _wrapComponent - Single component wrapping.
     */
    private _wrapComponentWithChildren;
    /**
     * Gets the current location information from the browser's window object.
     * @private
     * @returns {Omit<RouteLocation, 'params' | 'meta' | 'name' | 'matched'>}
     */
    private _getCurrentLocation;
    /**
     * Parses a query string into a key-value object.
     * Uses URLSearchParams for robust parsing of encoded values.
     *
     * @private
     * @param {string} queryString - The query string to parse (without leading '?').
     * @returns {QueryParams} Key-value pairs from the query string.
     *
     * @example
     * this._parseQuery('foo=bar&baz=qux');
     * // Returns: { foo: 'bar', baz: 'qux' }
     */
    private _parseQuery;
    /**
     * Matches a given path against the registered routes.
     * @private
     * @param {string} path - The path to match.
     * @returns {{route: RouteDefinition, params: Object<string, string>} | null} The matched route and its params, or null.
     */
    private _matchRoute;
    /**
     * Adds a new route dynamically at runtime.
     * The route will be processed and available for navigation immediately.
     * Routes are inserted before the wildcard (*) route if one exists.
     *
     * @param {RouteDefinition} route - The route definition to add.
     * @param {RouteDefinition} [parentRoute] - Optional parent route to add as a child (not yet implemented).
     * @returns {() => void} A function to remove the added route (returns no-op if route was invalid).
     * @emits router:routeAdded When a route is successfully added.
     *
     * @example
     * // Add a route dynamically
     * const removeRoute = router.addRoute({
     *   path: '/dynamic',
     *   component: DynamicPage,
     *   meta: { title: 'Dynamic Page' }
     * });
     *
     * // Later, remove the route
     * removeRoute();
     */
    addRoute(route: RouteDefinition, parentRoute?: RouteDefinition): () => void;
    /**
     * Removes a route by its path.
     *
     * @param {string} path - The path of the route to remove.
     * @returns {boolean} True if the route was removed, false if not found.
     * @emits router:routeRemoved When a route is successfully removed.
     *
     * @example
     * router.removeRoute('/dynamic');
     */
    removeRoute(path: string): boolean;
    /**
     * Checks if a route with the given path exists.
     *
     * @param {string} path - The path to check.
     * @returns {boolean} True if the route exists.
     *
     * @example
     * if (router.hasRoute('/users/:id')) {
     *   console.log('User route exists');
     * }
     */
    hasRoute(path: string): boolean;
    /**
     * Gets all registered routes.
     *
     * @returns {RouteDefinition[]} A copy of the routes array.
     *
     * @example
     * const routes = router.getRoutes();
     * console.log('Available routes:', routes.map(r => r.path));
     */
    getRoutes(): RouteDefinition[];
    /**
     * Gets a route by its path.
     *
     * @param {string} path - The path of the route to get.
     * @returns {RouteDefinition | undefined} The route definition or undefined.
     *
     * @example
     * const route = router.getRoute('/users/:id');
     * if (route) {
     *   console.log('Route meta:', route.meta);
     * }
     */
    getRoute(path: string): RouteDefinition | undefined;
    /**
     * Registers a global pre-navigation guard.
     * Multiple guards can be registered and will be executed in order.
     * Guards can also be registered via the emitter using `router:beforeEach` event.
     *
     * @param {NavigationGuard} guard - The guard function to register.
     * @returns {() => void} A function to unregister the guard.
     *
     * @example
     * // Register a guard
     * const unregister = router.onBeforeEach((to, from) => {
     *   if (to.meta.requiresAuth && !isAuthenticated()) {
     *     return '/login';
     *   }
     * });
     *
     * // Later, unregister the guard
     * unregister();
     */
    onBeforeEach(guard: NavigationGuard): () => void;
    /**
     * Registers a global hook that runs after a new route component has been mounted.
     * @param {NavigationHook} hook - The hook function to register.
     * @returns {() => void} A function to unregister the hook.
     * @listens router:afterEnter
     */
    onAfterEnter(hook: NavigationHook): () => void;
    /**
     * Registers a global hook that runs after a route component has been unmounted.
     * @param {NavigationHook} hook - The hook function to register.
     * @returns {() => void} A function to unregister the hook.
     * @listens router:afterLeave
     */
    onAfterLeave(hook: NavigationHook): () => void;
    /**
     * Registers a global hook that runs after a navigation has been confirmed and all hooks have completed.
     * @param {NavigationHook} hook - The hook function to register.
     * @returns {() => void} A function to unregister the hook.
     * @listens router:afterEach
     */
    onAfterEach(hook: NavigationHook): () => void;
    /**
     * Registers a global error handler for navigation errors.
     * @param {(error: Error, to?: RouteLocation, from?: RouteLocation) => void} handler - The error handler function.
     * @returns {() => void} A function to unregister the handler.
     * @listens router:error
     */
    onError(handler: (error: Error, to?: RouteLocation, from?: RouteLocation) => void): () => void;
    /**
     * Registers a plugin with the router.
     * Logs a warning if the plugin is already registered.
     *
     * @param {RouterPlugin} plugin - The plugin to register (must have install method).
     * @param {Record<string, unknown>} [options={}] - Options to pass to plugin.install().
     * @returns {void}
     * @throws {Error} If plugin does not have an install method.
     */
    use(plugin: RouterPlugin, options?: Record<string, unknown>): void;
    /**
     * Gets all registered plugins.
     * @returns {RouterPlugin[]} Array of registered plugins.
     */
    getPlugins(): RouterPlugin[];
    /**
     * Gets a plugin by name.
     * @param {string} name - The plugin name.
     * @returns {RouterPlugin | undefined} The plugin or undefined.
     */
    getPlugin(name: string): RouterPlugin | undefined;
    /**
     * Removes a plugin from the router.
     * @param {string} name - The plugin name.
     * @returns {boolean} True if the plugin was removed.
     */
    removePlugin(name: string): boolean;
    /**
     * Sets a custom error handler. Used by error handling plugins.
     * Logs a warning if the provided handler is invalid (missing required methods).
     * @param {RouterErrorHandler} errorHandler - The error handler object with handle, warn, and log methods.
     * @returns {void}
     */
    setErrorHandler(errorHandler: RouterErrorHandler): void;
}

export { RouterPlugin as Router, RouterPlugin };
export type { ComponentDefinition, Eleva, Emitter, MountResult, NavigateFunction, NavigationContext, NavigationContextCallback, NavigationGuard, NavigationGuardResult, NavigationHook, NavigationParams, NavigationTarget, QueryParams, RenderContext, RenderContextCallback, ResolveContext, ResolveContextCallback, RouteAddedCallback, RouteChangeCallback, RouteComponent, RouteDefinition, RouteLocation, RouteMatch, RouteMeta, RouteParams, RouteRemovedCallback, RouteSegment, RouterContext, RouterErrorCallback, RouterErrorHandler, RouterMode, RouterOptions, RouterReadyCallback, ScrollContext, ScrollContextCallback, ScrollPosition, Signal, UnsubscribeFunction };
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