Asymmetrik/node-rest-starter

import { promises as fsPromises } from 'fs';
import path from 'path';

import { DateTime } from 'luxon';

import { EmailProvider, MailOptions } from './email.provider';
import { config } from '../../../../dependencies';
import { logger } from '../../../../lib/logger';

export default class implements EmailProvider {
    getFileName(mailOptions: MailOptions) {
        return `${path
            .basename(mailOptions.templatePath ?? 'email', '.html')
            .replace('.server', '')
            .replace('.view', '')}-${DateTime.now().toFormat('y-MM-dd-HH-mm-ss')}`;
    }

    /**
     * Mocks sending an email with the input mail options by logging each email to individual files
     */
    async sendMail(mailOptions: MailOptions): Promise<void> {
        const fileDirectory = config.get<string>('mailer.options.outputDir');

        // ensure directory exists
        await fsPromises.mkdir(fileDirectory, { recursive: true });

        const filename = `${fileDirectory}/${this.getFileName(mailOptions)}`;
        const content = `<p>To: ${mailOptions.to ?? ''}</p><br>
<p>cc: ${mailOptions.cc ?? ''}</p><br>
<p>bcc: ${mailOptions.bcc ?? ''}</p><br>
<p>From: ${mailOptions.from ?? ''}</p><br>
<p>Subject: ${mailOptions.subject ?? ''}</p><br>
<p>Text:</p><br>
<p>${mailOptions.text ?? mailOptions.html ?? ''}</p><br>
`;

        await fsPromises.writeFile(filename, content);
        logger.info('Logged email to file:', filename);
    }
}