habitica/website/server/libs/chat.js

import { model as User } from '../models/user';
import { getUserInfo } from './email';
import { sendNotification as sendPushNotification } from './pushNotifications';

export async function getAuthorEmailFromMessage (message) {
  const authorId = message.uuid;

  if (authorId === 'system') {
    return 'system';
  }

  const author = await User.findOne({ _id: authorId }, { auth: 1 }).exec();

  if (author) {
    return getUserInfo(author, ['email']).email;
  }
  return 'Author Account Deleted';
}

export async function sendChatPushNotifications (user, group, message, translate) {
  const members = await User.find({
    'party._id': group._id,
    _id: { $ne: user._id },
  })
    .select('preferences.pushNotifications preferences.language profile.name pushDevices')
    .exec();
  members.forEach(member => {
    if (member.preferences.pushNotifications.partyActivity !== false) {
      sendPushNotification(
        member,
        {
          title: translate('groupActivityNotificationTitle', { user: message.user, group: group.name }, member.preferences.language),
          message: message.text,
          identifier: 'groupActivity',
          category: 'groupActivity',
          payload: {
            groupID: group._id, type: group.type, groupName: group.name, message: message.text, timestamp: message.timestamp, senderName: message.user,
          },
        },
      );
    }
  });
}