import { ILogger } from '@sourceloop/core';
import { Lead } from '../models';
import { NotificationService } from './notifications';
import { CryptoHelperService } from './crypto-helper.service';
import { LeadTokenRepository } from '../repositories';
/**
 * Helper service for authenticating leads.
 */
export declare class LeadAuthenticator {
    private notificationService;
    private cryptoHelperService;
    private leadTokenRepository;
    private logger;
    /**
     * Constructs a new instance of the LeadAuthenticatorService.
     * @param {NotificationService} notificationService - Service for sending notifications.
     * @param {CryptoHelperService} cryptoHelperService - Service for cryptographic operations.
     * @param {ILogger} logger - Logger service for logging messages.
     */
    constructor(notificationService: NotificationService, cryptoHelperService: CryptoHelperService, leadTokenRepository: LeadTokenRepository, logger: ILogger);
    /**
     * The function `triggerValidationMail` sends a validation email to a lead with a
     * generated temporary token to validate his email id.
     * @param {Lead} lead - The `lead` parameter is an object that represents a lead.
     * It likely contains information about a potential customer or user, such as their
     * name, email address, and other relevant details.
     */
    triggerValidationMail(lead: Lead): Promise<string>;
    /**
     * The function `_generateTempToken` generates a temporary token for a lead with
     * specified permissions.
     * @param {Lead} lead - The `lead` parameter is an object that represents a lead.
     * It contains properties such as `id`, `userTenantId`, and `email`. These
     * properties are used to generate a temporary token.
     * @param {string[]} permissions - The `permissions` parameter is an optional array
     * of strings that represents the permissions associated with the lead. These
     * permissions determine what actions the lead is allowed to perform within the
     * system using the generated token
     * @returns a signed token.
     */
    private _generateTempToken;
}