import { Observable } from 'rxjs';
import { AuthenticationResponse } from '@studiohyperdrive/types-auth';
import { NgxAuthenticationResponseFeature } from '../types';
/**
 * An abstract service used by the directives, guards and other components of @studiohyperdrive/ngx-auth
 *
 * @template AuthenticationResponseType - The type of authentication response
 * @template SignInDataType - The data type used to sign in a user
 * @template SignoutDataType - The data type used to sign out a user
 * @template SignOutResponseType - The data type you get when signing out a user
 */
export declare abstract class NgxAuthenticationAbstractService<AuthenticationResponseType extends AuthenticationResponse<unknown> = AuthenticationResponse<any>, SignInDataType = any, SignoutDataType = any, SignOutResponseType = void> {
    /**
     * A subject to store the authentication response if no other state implementation was provided
     */
    private readonly authenticationResponseSubject;
    /**
     * A subject to store whether we've authenticated already
     */
    private readonly authenticationStatusSubject;
    /**
     * A subject to store global features that are available for all users, regardless of their authenticated state
     */
    private readonly globalFeaturesSubject;
    /**
     * Whether an authentication attempt has been made
     */
    readonly hasAuthenticated$: Observable<boolean>;
    /**
     * Whether the user is authenticated
     */
    readonly isAuthenticated$: Observable<boolean>;
    /**
     * The call required to sign in a user
     *
     * @param signInData - The data needed to sign in a user
     */
    protected abstract signInUser(signInData: SignInDataType): Observable<AuthenticationResponseType>;
    /**
     * The call required to sign out a user
     *
     * @param signoutDataType - Optional data needed to sign out a user
     */
    protected abstract signOutUser(signoutDataType?: SignoutDataType): Observable<SignOutResponseType>;
    /**
     * Stores the authentication response in the state
     *
     * @param response - The authentication response
     */
    protected storeAuthenticationResponse(response: AuthenticationResponseType): void;
    /**
     * Returns the authentication response from the state
     */
    protected getAuthenticationResponse(): Observable<AuthenticationResponseType>;
    /**
     * The authenticated user
     */
    get user$(): Observable<AuthenticationResponseType['user']>;
    /**
     * The session of the authenticated user
     */
    get session$(): Observable<AuthenticationResponseType['session']>;
    /**
     * The metadata of the authenticated user
     */
    get metadata$(): Observable<AuthenticationResponseType['metadata']>;
    /**
     * Signs in a user and stores the authentication response
     *
     * @param signInData - The data needed to sign in a user
     */
    signIn(signInData: SignInDataType): Observable<void>;
    /**
     * Signs out a user and removes the stored authentication response
     *
     * @param signoutDataType - Optional data needed to sign out a use
     */
    signOut(signoutDataType?: SignoutDataType): Observable<SignOutResponseType>;
    /**
     * Returns whether the user has the required features.
     *
     * @param requiredFeatures - An array of required features
     * @param shouldHaveAllFeatures - Whether all features in the array are required, by default true
     */
    hasFeature(requiredFeatures: NgxAuthenticationResponseFeature<AuthenticationResponseType>[], shouldHaveAllFeatures?: boolean): Observable<boolean>;
    /**
     * Sets a set of global features that are always present, regardless of the authenticated state of the user
     *
     * @param  features - A list of features
     */
    setGlobalFeatures(features: NgxAuthenticationResponseFeature<AuthenticationResponseType>[]): void;
    /**
     * Returns whether the user has the required permissions.
     *
     * @param requiredPermissions - An array of required permissions
     * @param shouldHaveAllPermissions - Whether all permissions in the array are required, by default true
     */
    hasPermission(requiredPermissions: AuthenticationResponseType['session']['permissions'], shouldHaveAllPermissions?: boolean): Observable<boolean>;
    /**
     * Returns a session or an empty session depending on the authenticated state
     */
    private getSession;
}