import { Pool } from 'pg';
import { Response } from 'express';
import { OAuthServerProvider, AuthorizationParams } from '@modelcontextprotocol/sdk/server/auth/provider.js';
import { OAuthRegisteredClientsStore } from '@modelcontextprotocol/sdk/server/auth/clients.js';
import { OAuthClientInformationFull, OAuthTokens, OAuthTokenRevocationRequest } from '@modelcontextprotocol/sdk/shared/auth.js';
import { AuthInfo } from '@modelcontextprotocol/sdk/server/auth/types.js';
import { PgClientsStore } from './pg-clients.js';
export declare class PgOAuthProvider implements OAuthServerProvider {
    private pool;
    private _clientsStore;
    private tokenExpirySeconds;
    constructor(pool: Pool, tokenExpirySeconds?: number);
    get clientsStore(): OAuthRegisteredClientsStore;
    get merchantClientsStore(): PgClientsStore;
    authorize(client: OAuthClientInformationFull, params: AuthorizationParams, res: Response): Promise<void>;
    generateCodeAndRedirect(client: OAuthClientInformationFull, params: AuthorizationParams, res: Response): Promise<void>;
    challengeForAuthorizationCode(_client: OAuthClientInformationFull, authorizationCode: string): Promise<string>;
    exchangeAuthorizationCode(client: OAuthClientInformationFull, authorizationCode: string, _codeVerifier?: string, _redirectUri?: string, resource?: URL): Promise<OAuthTokens>;
    exchangeRefreshToken(client: OAuthClientInformationFull, refreshToken: string, scopes?: string[], resource?: URL): Promise<OAuthTokens>;
    verifyAccessToken(token: string): Promise<AuthInfo>;
    revokeToken(_client: OAuthClientInformationFull, request: OAuthTokenRevocationRequest): Promise<void>;
    private issueTokens;
}