import { CreateUserDto, LoginDto, Permission, Session } from '@tmlmobilidade/types';
declare class AuthProvider {
    private static _instance;
    /**
     * Return the instance of the AuthProvider.
     */
    static getInstance(): Promise<AuthProvider>;
    /**
     * Get Permissions
     *
     * @param session_token - The session token
     * @param scope - The scope to check
     * @param action - The action to check
     * @returns The permissions that the user has
     */
    getPermission<T>(session_token: string, scope: string, action: string): Promise<Permission<T>>;
    /**
     * Gets a user by their session token
     *
     * @param session_token - The session token to look up
     * @returns The user associated with the session token
     * @throws {HttpException}
     *   - UNAUTHORIZED if session not found
     *   - UNAUTHORIZED if user not found
     */
    getUser(session_token: string): Promise<import("mongodb").WithId<import("@tmlmobilidade/types").User>>;
    /**
     * Login a user
     *
     * @param username - The username of the user
     * @param password_hash - The password hash of the user, already hashed with bcrypt in client
     * @returns The newly created session for the logged in user
     * @throws {HttpException}
     *   - UNAUTHORIZED if user not found or password is incorrect
     *   - INTERNAL_SERVER_ERROR if login fails
     */
    login(dto: LoginDto): Promise<Session>;
    /**
     * Logout a user
     *
     * @param session_token - The session token to logout
     */
    logout(session_token: string): Promise<void>;
    register(createUserDto: CreateUserDto): Promise<void>;
}
export declare const authProvider: AuthProvider;
export {};