import { DeviceCodeFlowManager, type DeviceAuthParams, type DeviceAuthResponse } from './deviceCodeFlow.js';
import { AuthCodeFlowManager, type AuthCodeFlowParams, type AuthCodeStartResponse } from './authCodeFlow.js';
export interface OAuthTokenRequest {
    cacheKey: string;
    tokenUrl: string;
    clientId: string;
    clientSecret: string;
    scopes: string[];
    tokenEndpointAuthMethod: 'client_secret_basic' | 'client_secret_post';
}
export interface OAuthPasswordGrantRequest extends OAuthTokenRequest {
    username: string;
    password: string;
}
export interface OAuthTokenResult {
    accessToken: string;
    expiresIn?: number;
}
export type InteractiveAuthResult = DeviceAuthResponse | AuthCodeStartResponse | {
    status: 'authorization_pending';
    method: 'device_code' | 'authorization_code';
    message: string;
    instruction: string;
};
export declare class OAuthClient {
    private readonly cache;
    readonly deviceCodeFlow: DeviceCodeFlowManager;
    readonly authCodeFlow: AuthCodeFlowManager;
    getClientCredentialsToken(request: OAuthTokenRequest): Promise<OAuthTokenResult>;
    getPasswordGrantToken(request: OAuthPasswordGrantRequest): Promise<OAuthTokenResult>;
    getCachedToken(cacheKey: string): OAuthTokenResult | undefined;
    cacheToken(cacheKey: string, accessToken: string, expiresIn?: number): void;
    startOrPollDeviceCode(params: DeviceAuthParams): Promise<OAuthTokenResult | InteractiveAuthResult>;
    startOrPollAuthCode(params: AuthCodeFlowParams): Promise<OAuthTokenResult | InteractiveAuthResult>;
}