/* eslint-disable import/no-absolute-path */
import { Meteor } from 'meteor/meteor';
import i18n from 'i18next';
import sendEmail, { subjectTruncate } from '/imports/modules/server/send-email';
import getEmailOf from '/imports/modules/get-email-of-user';
import Comments from '/imports/api/Comments/Comments';

/*
 * When a comment is added to a fire, email the other users who commented on the
 * same fire (uniq, excluding the author). Ported from the old
 * startup/server/comments.js `onEvent` handler.
 */
export default function onCommentAdd(payload) {
  const { referenceId, userId } = payload;
  const query = { referenceId, userId: { $ne: userId } };

  Comments.rawCollection().distinct('userId', query).then(async (users) => {
    const path = referenceId.replace(/fire-/, 'fire/archive/');
    const fireUrl = Meteor.absoluteUrl(path);
    await Meteor.users.find({ _id: { $in: users } }).forEachAsync((user) => {
      const { firstName, emailAddress } = getEmailOf(user);
      if (emailAddress) {
        const emailOpts = {
          to: emailAddress,
          subject: subjectTruncate.apply(i18n.t('Hay más información sobre un fuego')),
          lang: user.lang,
          template: 'new-fire-comment',
          templateVars: {
            applicationName: i18n.t('AppName'),
            firstName,
            fireUrl
          }
        };
        sendEmail(emailOpts).catch((error) => {
          console.warn(`comments new-fire-comment mail failed: ${error}`);
        });
      }
    });
  }).catch((error) => {
    console.warn(`comments distinct() failed: ${error}`);
  });
}