klz-cables.com/lib/mail/mailer.ts

import nodemailer from "nodemailer";
import { render } from "@react-email/components";
import { ReactElement } from "react";
import { getServerAppServices } from "@/lib/services/create-services.server";
import { config } from "../config";

const transporter = nodemailer.createTransport({
  host: config.mail.host,
  port: config.mail.port,
  secure: config.mail.port === 465,
  auth: {
    user: config.mail.user,
    pass: config.mail.pass,
  },
});

interface SendEmailOptions {
  to?: string | string[];
  subject: string;
  template: ReactElement;
}

export async function sendEmail({ to, subject, template }: SendEmailOptions) {
  const html = await render(template);
  
  const recipients = to || config.mail.recipients;

  const mailOptions = {
    from: config.mail.from,
    to: recipients,
    subject,
    html,
  };

  const logger = getServerAppServices().logger.child({ component: 'mailer' });

  try {
    const info = await transporter.sendMail(mailOptions);
    logger.info("Email sent successfully", { messageId: info.messageId, subject, recipients });
    return { success: true, messageId: info.messageId };
  } catch (error) {
    logger.error("Error sending email", { error, subject, recipients });
    return { success: false, error };
  }
}