config.service.ts

import * as dotenv from 'dotenv';
import { config } from './config';

export class ConfigService {
  private _config = config;

  constructor() {
    dotenv.config();
    // Initializing conf with values from var env
    this._config.smtpConfig.host = process.env.SMTP_HOST;
    this._config.smtpConfig.port = process.env.SMTP_PORT;

    if (process.env.SMTP_USER && process.env.SMTP_PASSWORD) {
      this._config.smtpConfig = {
        ...this._config.smtpConfig,
        auth: {
          user: process.env.SMTP_USER,
          pass: process.env.SMTP_PASSWORD,
        },
      };
    }
    this._config.mailSubjectPrefix = process.env.MAIL_SUBJECT_PREFIX;
    this._config.userSupportMailbox = process.env.USER_SUPPORT_MAILBOX;
    this._config.noReplyMailAddress = process.env.NO_REPLY_MAIL_ADDRESS;
    this._config.additionalFeedbackEmails =
      process.env.ADDITIONAL_FEEDBACK_EMAILS;
    this._config.groupHeader = process.env.GROUP_HEADER;
    this._config.groupNames.emailWriter = process.env.EMAIL_WRITER_GROUP_NAME;
    this._config.imageHost = process.env.IMAGE_HOST;
  }

  get config() {
    return this._config;
  }
}