import { Client } from './client';
import { EnvatoHttpOptions } from '../helpers/http';
/**
 * Helper class for OAuth applications. Includes methods to both authorize new clients and renew tokens.
 */
export declare class OAuth {
    private _options;
    private _httpClient;
    constructor(options: OAuthOptions);
    /**
     * Returns the URL that you should redirect users to in order to authenticate with the Envato API for this app.
     * This will include the `client_id` and `redirect_uri` from your options.
     */
    getRedirectUrl(): string;
    /**
     * Authorizes the user based on the given authentication code and returns a `Client` with their access token,
     * refresh token, and expiration time configured and ready-to-go.
     *
     * @param code The single-use authentication code returned from the Envato authorization screen.
     */
    getClient(code: string): Promise<Client>;
    /**
     * Returns a new access token for the given client.
     *
     * @param client The client whose access token needs to be renewed.
     */
    renew(client: Client): Promise<IRefreshedToken>;
    /**
     * Performs an OAuth request.
     *
     * @param form
     */
    private _sendRequest;
}
export interface OAuthOptions {
    /**
     * The application's unique ID.
     */
    client_id: string;
    /**
     * The application's secret.
     */
    client_secret: string;
    /**
     * The application's redirect URL. This must exactly match the URL provided when creating the application.
     */
    redirect_uri: string;
    /**
     * The user agent string to send with requests. This should briefly explain what your app is or its purpose.
     * Please do not use a generic browser user agent. Note that this also applies to `Client` instances generated by
     * the OAuth helper.
     *
     * Here are some examples of good user agents:
     *
     * - `"License activation for my themes"`
     * - `"Support forum authentication & license verification"`
     * - `"Gathering data on items"`
     */
    userAgent?: string;
    /**
     * Optional configuration for the underlying `axios` library.
     */
    http?: EnvatoHttpOptions;
}
export interface IResponseData {
    refresh_token: string;
    token_type: string;
    access_token: string;
    expires_in: number;
}
export interface IRefreshResponseData {
    token_type: string;
    access_token: string;
    expires_in: number;
}
export interface IRefreshedToken {
    /**
     * Alias for `accessToken`, here only for backwards compatibility!
     */
    token: string;
    /**
     * The new access token. This should be stored in the database alongside the existing refresh token.
     */
    accessToken: string;
    /**
     * The timestamp at which the new access token will expire (epoch milliseconds).
     */
    expiration: number;
    [key: string]: any;
}