import { APIError } from "./errors/error.js";
import { AnyResponseSchema, PossibleResponses } from "./routes/response.js";
import { AnyRoute } from "./routes/route.js";
import { Router } from "./routers/router.js";
import { GracePlugin } from "./plugins/plugin.js";
import { Adapter } from "./runtime/adapter.js";
export type BeforeRequest = (request: Request) => Promise<{
    headers?: Record<string, string>;
} | PossibleResponses<AnyResponseSchema> | void>;
export type AfterRequest = (request: Request, response: PossibleResponses<AnyResponseSchema>) => Promise<void>;
export type ErrorRequest = (request: Request, error: APIError) => Promise<PossibleResponses<AnyResponseSchema> | void>;
export declare class Grace {
    routes: AnyRoute[];
    before: BeforeRequest[];
    after: AfterRequest[];
    error: ErrorRequest[];
    private readonly router;
    readonly adapter: Adapter;
    readonly verbose: boolean;
    constructor(router: Router, adapter: Adapter, verbose?: boolean);
    registerPlugin(plugin: GracePlugin): Grace;
    registerBefore(before: BeforeRequest): Grace;
    registerAfter(after: AfterRequest): Grace;
    registerError(error: ErrorRequest): Grace;
    registerRoute(route: AnyRoute): Grace;
    registerRoutes(path: string): Grace;
    exportOpenAPI(path: string): Grace;
    fetch(request: Request): Promise<Response>;
    listen(port: number): void;
    close(): void;
    handleInternally(request: Request): Promise<PossibleResponses<AnyResponseSchema>>;
    private handleError;
    registerRoutesAsync(path: string): Promise<void>;
}
export declare function createGrace({ router, adapter, verbose }?: {
    router?: Router;
    adapter?: Adapter;
    verbose?: boolean;
}): Grace;
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