import { SecretsType } from './types/secrets-type';
/**
 * Represents an authentication header for making authorized HTTP requests.
 *
 * @typedef {Object} AuthHeader
 * @property {string | undefined} Authorization - The authorization token to include in the request header.
 *
 * @example
 * ```ts
 * const authHeader: AuthHeader = {
 *   Authorization: 'Bearer <token>',
 * }
 *
 * // Usage in an HTTP request
 * const requestOptions: RequestOptions = {
 *   headers: authHeader,
 *   // other request options...
 * }
 * ```
 */
export type AuthHeader = {
    Authorization?: string;
};
declare enum AUTH_TOKENS {
    accessToken = "access-token"
}
/**
 * Represents the oAuth secret that includes only access-token
 */
type oAuthSecrets = {
    [AUTH_TOKENS.accessToken]: string | undefined;
} | undefined;
/**
 * Extracts OAuth secrets from the provided headers.
 *
 * @param headers - The headers containing OAuth secrets inclding access-token.
 * @returns The extracted OAuth secrets.
 */
declare function extractOAuthSecretsFromHeader(headers: SecretsType | undefined): oAuthSecrets;
/**
 * Generates an authentication header using the provided token and optional prefix.
 *
 * @param token - The token used for authentication.
 * @param prefix - The prefix to be added before the token (default is 'Bearer').
 * @returns The authentication header.
 * @example
 * ```
 * //Generating a custom prefix token header
 * const token = 'your-custom-token';
 * const customPrefix = 'Custom';
 * const header = getAuthHeader(token, customPrefix);
 * // header will be: { Authorization: 'Custom your-custom-token' }
 *```
 */
declare function getAuthHeader(token: string, prefix?: string): AuthHeader;
/**
 * Generates a Basic authentication header using the provided username and password.
 *
 * @param username - The username for authentication.
 * @param password - The password for authentication.
 * @returns The Basic authentication header.
 *
 * @example
 * ```
 * // Generating a Basic authentication header
 * const username = 'yourUsername';
 * const password = 'yourPassword';
 * const basicAuthHeader = getBasicAuthHeader(username, password);
 * console.log(basicAuthHeader);
 * // Output will be: { Authorization: 'Basic base64EncodedString' }
 * ```
 */
declare function getBasicAuthHeader(username: string, password: string): AuthHeader;
/**
 * Generates an OAuth authentication header based on the provided secrets.
 * If no access token is provided in the secrets, an empty object is returned.
 *
 * @param headers - The headers containing access-token.
 * @returns The authentication header.
 */
declare function getOAuthHeader(headers: SecretsType | undefined): AuthHeader;
/**
 * Represents OAuth credentials. includes only access token
 */
declare class OAuthCredentials {
    readonly accessToken: string | undefined;
    /**
     * Create a new instance of OAuthCredentials.
     *
     * @param headers - The headers containing OAuth secrets. Only `access-token` will be used from the provided headers
     */
    constructor(headers: SecretsType | undefined);
    /**
     * Get the authentication header based on the access token.
     *
     * @returns The authentication header.
     */
    get authHeader(): AuthHeader;
}
export { OAuthCredentials, extractOAuthSecretsFromHeader, getAuthHeader, getBasicAuthHeader, getOAuthHeader };