import { generateConfirmationToken } from '@/config/jwt';
import sendEmail from '@/config/sparkpost/sendEmail';

import ServerError from '@/config/util/ServerError';
import Welcome from '@/emails/Welcome';
import { render } from '@react-email/render';
import { z } from 'zod';
import GetUserSchema from './schema/GetUserSchema';

const { BASE_URL } = process.env;

if (!BASE_URL) {
  throw new ServerError('BASE_URL env variable is not set.', 500);
}

type UserSchema = z.infer<typeof GetUserSchema>;

const sendConfirmationEmail = async ({ id, username, email }: UserSchema) => {
  const confirmationToken = generateConfirmationToken({ id, username });

  const subject = 'Confirm your email';
  const name = username;
  const url = `${BASE_URL}/api/users/confirm?token=${confirmationToken}`;
  const address = email;

  const html = render(Welcome({ name, url, subject })!);
  const text = render(Welcome({ name, url, subject })!, { plainText: true });

  await sendEmail({ address, subject, text, html });
};

export default sendConfirmationEmail;