import { ExtendsOrEmpty } from '../utils';
import { GatewayClass } from './gateway.class';
import { ResendOptions } from './resend.types';
import { SendgridOptions } from './sendgrid.types';
import { SlackOptions } from './slack.types';
import { SmtpOptions } from './smtp.types';
export type Gateway = 'smtp' | 'console' | 'slack' | 'sendgrid' | 'resend';
export type MailOptions<TGateway extends Gateway = Gateway> = {
    readonly gateways: [TGateway, ...TGateway[]];
    readonly customGateways?: [GatewayClass, ...GatewayClass[]];
} & ExtendsOrEmpty<'smtp', TGateway, {
    smtp: SmtpOptions;
}> & ExtendsOrEmpty<'slack', TGateway, {
    slack: SlackOptions;
}> & ExtendsOrEmpty<'sendgrid', TGateway, {
    sendgrid: SendgridOptions;
}> & ExtendsOrEmpty<'resend', TGateway, {
    resend: ResendOptions;
}>;