import type { Bud } from '@roots/bud-framework';
import type * as Server from '@roots/bud-framework/services/server';
import type { Options } from './proxy.types.js';
export declare const fallbackUrl: URL;
export declare const maybeEnable: (bud: Bud, input: unknown) => void;
/**
 * Assign port
 *
 * @param bud
 * @param port
 */
export declare const assignPort: (bud: Bud, port: number) => void;
/**
 * Assign a URL or a string to `proxy.options.target`
 *
 * @param bud
 * @param maybeURL
 */
export declare const assignUrl: (bud: Bud, maybeURL: string | URL) => void;
/**
 * Assign a callback function `proxy.options`
 *
 * @param bud - bud instance
 * @param optionsFn - options callback
 */
export declare const assignOptionsCallback: (bud: Bud, value: ((options: Partial<Options> | undefined) => Partial<Options>) | Partial<Options>) => void;
/**
 * Assign replacements
 *
 * @param bud - bud instance
 * @param replacements - replacement tuples
 */
export declare const assignReplacements: (bud: Bud, replacements: Options["replacements"]) => void;
/**
 * Enables proxy middleware
 *
 * @remarks
 * Callback for the `dev.middleware.enabled` hook
 * If proxy middleware is already enabled it will be removed before it is re-added
 */
export declare const enableMiddleware: (middleware?: Array<keyof Server.Middleware.Available> | undefined) => Array<keyof Server.Middleware.Available>;
/**
 * Disable proxy middleware
 *
 * @remarks
 * Callback for the `dev.middleware.enabled` hook
 * If proxy middleware is already enabled it will be removed before it is re-added
 */
export declare const disableMiddleware: (middleware?: Array<keyof Server.Middleware.Available> | undefined) => Array<keyof Server.Middleware.Available>;
export declare const isUrl: (obj: unknown) => obj is URL;
export declare const isFalse: (obj: unknown) => obj is false;
export declare const isOptionsObject: (obj: Array<[string, string]> | boolean | CallableFunction | number | Partial<Options> | string | undefined | URL) => obj is Partial<Options>;
/**
 * Map options object
 *
 * @param bud
 * @param options
 */
export declare const assignOptions: (bud: Bud, options: Partial<Options>) => void;