import { PKCECodes } from './pkce';
import { OAuthTokenStorage } from './store';
/**
 * xAI Grok OAuth — port từ `internal/auth/xai/xai.go` + `types.go`.
 *
 * Khác Claude/Codex: dùng OIDC discovery để resolve endpoint thật. PKCE bắt buộc.
 */
export declare const XAI_DEFAULT_API_BASE = "https://api.x.ai/v1";
export declare const XAI_ISSUER = "https://auth.x.ai";
export declare const XAI_DISCOVERY_URL = "https://auth.x.ai/.well-known/openid-configuration";
export declare const XAI_CLIENT_ID = "b1a00492-073a-47ea-816f-4c329264a828";
export declare const XAI_SCOPE = "openid profile email offline_access grok-cli:access api:access";
export declare const XAI_DEFAULT_CALLBACK_PORT = 56121;
export declare const XAI_CALLBACK_PATH = "/callback";
export interface XAIDiscovery {
    authorizationEndpoint: string;
    tokenEndpoint: string;
}
export interface XAIAuthSession {
    authUrl: string;
    state: string;
    pkce: PKCECodes;
    redirectUri: string;
    discovery: XAIDiscovery;
}
export declare function startXAIAuth(callbackPort?: number): Promise<XAIAuthSession>;
export declare function exchangeXAICodeForTokens(code: string, pkce: PKCECodes, redirectUri: string, tokenEndpoint: string, account?: string): Promise<OAuthTokenStorage>;
export declare function refreshXAIToken(current: OAuthTokenStorage): Promise<OAuthTokenStorage>;