import { Mailable } from './Mailable.mjs';
import { MailerProvider } from './MailerProvider.mjs';
import { EventEmittor } from '@devbro/neko-helper';

/** Available mailer events */
declare const MailerEvents: string[];
/** Type representing mailer events */
type MailerEvent = (typeof MailerEvents)[number];
/**
 * Main mailer class for sending emails with event support.
 * Provides a unified interface for sending emails through various providers
 * with event notifications for sent and failed emails.
 */
declare class Mailer implements EventEmittor<["sent", "failed"]> {
    private provider;
    private eventManager;
    /**
     * Creates a new Mailer instance.
     * @param provider - The mailer provider to use for sending emails
     */
    constructor(provider: MailerProvider);
    /**
     * Registers an event listener.
     * @param event - The event to listen for ('sent' or 'failed')
     * @param listener - The callback function to execute when the event occurs
     * @returns This mailer instance for chaining
     */
    on(event: MailerEvent, listener: (...args: any[]) => void): this;
    /**
     * Removes an event listener.
     * @param event - The event to stop listening for
     * @param listener - The callback function to remove
     * @returns This mailer instance for chaining
     */
    off(event: MailerEvent, listener: (...args: any[]) => void): this;
    /**
     * Emits an event to all registered listeners.
     * @param event - The event to emit
     * @param args - Arguments to pass to the listeners
     * @returns True if the event was emitted successfully
     */
    emit(event: MailerEvent, ...args: any[]): Promise<boolean>;
    /**
     * Sends an email message.
     * Emits 'sent' event on success or 'failed' event on error.
     * @param mail - The email message to send
     * @throws The error from the provider if sending fails
     */
    send(mail: Mailable): Promise<void>;
}

export { Mailer, type MailerEvent, MailerEvents };