import { Counter, Ident, User } from "../index.js";
import { NotificationService } from "./notificationservice.js";
import { Service, ServiceParameters } from "./service.js";
interface IEmailTemplate {
    renderAll(file: string, options: any): any;
}
interface TemplatesMap {
    [key: string]: IEmailTemplate;
}
/**
 * Represent a mailer service
 */
export interface MailerService extends NotificationService {
    /**
     *
     * @params options Options to pass to the sendMail option of the nodemailer module
     * @params callback to pass to the sendMail
     */
    send(options: MailerSendOptions, callback: () => void): Promise<any>;
}
interface MailerSendOptions {
    /**
     * Sender of the email
     *
     * @default parameters.sender
     */
    from?: string;
    /**
     * Destination of the email
     */
    to: string;
    /**
     * Template to user
     */
    template?: string;
    /**
     * Replacements for the template
     */
    replacements?: any;
    /**
     * Subject of the email
     *
     * Can be overriden by the template
     */
    subject?: string;
    /**
     * HTML of the email
     *
     * Can be overriden by the template
     */
    html?: string;
    /**
     * Text of the email
     *
     * Can be overriden by the template
     */
    text?: string;
}
export declare class MailerParameters extends ServiceParameters {
    /**
     * Specify which foldeer contains templates
     *
     * @default "templates"
     */
    templates?: string;
    /**
     * Template engine to usee
     *
     * @default "mustache"
     */
    templatesEngine?: string;
    /**
     * Define the default sender
     */
    sender: string;
    /**
     * @see https://www.npmjs.com/package/email-templates
     */
    emailTemplateOptions?: any;
    /**
     * Define the type of transport to use
     */
    transport?: string;
    /**
     * SES AWS Bean if transport === "ses"
     */
    SES: any;
    constructor(params: any);
}
export declare abstract class AbstractMailer<T extends ServiceParameters = ServiceParameters> extends Service<T> implements MailerService {
    metrics: {
        sent: Counter;
        errors: Counter;
    };
    /**
     * @override
     */
    initMetrics(): void;
    /**
     * @inheritdoc
     */
    abstract send(options: MailerSendOptions, callback?: () => void): Promise<any>;
    /**
     * @inheritdoc
     */
    abstract hasNotification(notification: string): any;
    /**
     * If user has an email
     * @param user
     * @returns
     */
    handleNotificationFor(user: User | Ident): Promise<boolean>;
    /**
     * @override
     */
    sendNotification(user: User | Ident, notification: string, replacements: any): Promise<void>;
}
/**
 * A basic Mailer based on the nodemailer module
 *
 * Inside config it is the nodemailer module option for the method createTransport ( https://nodemailer.com/ )
 *
 * Only ses transport module is installed by default
 *
 * Parameters
 * config: { ... }
 * @category CoreServices
 * @WebdaModda
 */
declare class Mailer<T extends MailerParameters = MailerParameters> extends AbstractMailer<T> {
    _transporter: any;
    _templates: TemplatesMap;
    /**
     * Load parameters
     *
     * @param params
     * @ignore
     */
    loadParameters(params: any): ServiceParameters;
    /**
     * Compute parameters
     */
    init(): Promise<this>;
    /**
     * Get a template by name
     *
     * @param name
     * @returns
     */
    _getTemplate(name: string): IEmailTemplate;
    /**
     * Check if the email template exists
     *
     * @param name
     * @returns
     */
    hasNotification(name: string): boolean;
    /**
     *
     * @params options Options to pass to the sendMail option of the nodemailer module
     * @params callback to pass to the sendMail
     */
    send(options: MailerSendOptions, callback?: any): Promise<any>;
}
export { Mailer, TemplatesMap, IEmailTemplate };