import { type ServerAdapter, type WebSocketUpgrade, type WebSocketUpgradeOptions, type WebSocketUpgradeResponse } from "../../base.js";
import { DeferredWebSocket } from "../shared/deferred-websocket.js";
import type { BunServer, BunServerWebSocket, BunWebSocketHandler } from "./types.js";
export interface BunWebSocketData {
    readonly socket: BunWebSocket;
}
type BunRequestHandler = (request: Request) => Promise<Response | WebSocketUpgradeResponse> | Response | WebSocketUpgradeResponse;
export interface BunRequestDispatchResult {
    readonly response?: Response;
    readonly upgradeError?: unknown;
}
export declare function resolveBunWebSocketUpgradeHeaders(request: Request, options?: WebSocketUpgradeOptions): Headers;
export declare function dispatchBunRequest(request: Request, server: BunServer<BunWebSocketData>, handler: BunRequestHandler): Promise<BunRequestDispatchResult>;
export declare const bunWebSocketHandler: BunWebSocketHandler<BunWebSocketData>;
export declare class BunServerAdapter implements ServerAdapter {
    upgradeWebSocket(request: Request, options?: WebSocketUpgradeOptions): WebSocketUpgrade;
}
export declare class BunWebSocket extends DeferredWebSocket {
    constructor();
    _attachNativeSocket(socket: BunServerWebSocket<BunWebSocketData>): void;
    _emitNativeMessage(data: string | ArrayBuffer): void;
    _emitNativeClose(code: number, reason: string): void;
    _emitNativeError(error: Error): void;
    _failUpgrade(error: unknown): void;
}
export {};
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