import type { User } from "../entities/User";
export declare const hashPassword: (password: string, saltRounds?: number) => Promise<string>;
export declare const validatePassword: (password: string, hashedPassword: string) => Promise<boolean>;
export declare const generateToken: (userId: string | number, email: string) => string;
export declare const registerUser: (username: string, email: string, password: string) => Promise<User>;
export declare const loginUser: (email: string, password: string) => Promise<{
    user: User;
    token: string;
} | null>;
export declare const initiateLoginWithEmail: (email: string) => Promise<{
    message: string;
    success: boolean;
}>;
export declare const validateOTP: (email: string, otp: string) => Promise<{
    user: User;
    token: string;
} | null>;