import EmailTemplate from "./email-template";
import * as nodemailer from "nodemailer";
import Mailer, { MailerResult } from "./mailer";
import { Request } from "express";
/** A message set contains a set of email messages that may be sent or overridden. */
export declare class MessageSet<T> {
    /** The messages registered to this set */
    private readonly registrations;
    /** Registers a message with the given template and options */
    register(id: T, template: EmailTemplate, options?: Partial<nodemailer.SendMailOptions>): void;
    /** Overrides a message */
    override(id: T, template: EmailTemplate, options?: Partial<nodemailer.SendMailOptions>): void;
    /** Gets the message registration for the given id */
    lookup(id: T): MessageRegistration;
    /** Builds the mailer for this message set and the given request */
    getMailer(req: Request): MessageSetMailer<T>;
}
/** A mailer that sends messages from a message set */
export declare class MessageSetMailer<T> extends Mailer {
    private readonly set;
    constructor(req: Request, set: MessageSet<T>);
    /** Sends a message from the set */
    sendMessage(id: T, options: Partial<nodemailer.SendMailOptions>, data: any): Promise<MailerResult>;
}
/** Contains a template and details about how the template should be sent. */
export interface MessageRegistration {
    readonly template: EmailTemplate;
    readonly options: Partial<nodemailer.SendMailOptions>;
}