InsidersByte/honeymoon-gift-list

const nodemailer = require('nodemailer');
const EmailTemplate = require('email-templates').EmailTemplate;
const path = require('path');
const config = require('../config');

const templatesDirectory = path.join(__dirname, 'templates');

class mailer {
  constructor() {
    const options = (config.mail && Object.assign({}, config.mail.options)) || {};

    // if a service hasn't been set, send the mail directly
    if (!options.service) {
      options.direct = true;
    }

    this.transport = nodemailer.createTransport(options);
  }

  get from() {
    let from = config.mail && config.mail.from;

    // if no from has been set then default it
    if (!from) {
      from = `our-wedding-heroes@${this.getDomain()}`;
    }

    if (config.siteTitle) {
      from = `${config.siteTitle} <${from}>`;
    }

    return from;
  }

  // eslint-disable-next-line class-methods-use-this
  getDomain() {
    const domain = config.url.match(new RegExp('^https?://([^/:?#]+)(?:[/:?#]|$)', 'i'));
    return domain && domain[1];
  }

  send(message, templateName) {
    const messageToSend = Object.assign(message, {
      from: this.from,
      signature: config.mail.signature,
    });

    if (!templateName) {
      return this.sendMail(messageToSend);
    }

    const template = new EmailTemplate(path.join(templatesDirectory, templateName));

    return template.render(message).then(result => {
      messageToSend.text = result.text;
      messageToSend.html = result.html;

      return this.sendMail(message);
    });
  }

  sendMail(message) {
    return this.transport.sendMail(message);
  }
}

module.exports = mailer;