RocketChat/Rocket.Chat

import type { IRoom, ISubscription } from '@rocket.chat/core-typings';
import { Roles, Subscriptions, Users } from '@rocket.chat/models';
import _ from 'underscore';

import { settings } from '../../../app/settings/server';

export async function getRoomRoles(rid: IRoom['_id']): Promise<ISubscription[]> {
    const options = {
        sort: {
            'u.username': 1 as const,
        },
        projection: {
            rid: 1,
            u: 1,
            roles: 1,
        },
    };

    const useRealName = settings.get('UI_Use_Real_Name') === true;

    const roles = await Roles.find({ scope: 'Subscriptions', description: { $exists: true, $ne: '' } }).toArray();
    const subscriptions = await Subscriptions.findByRoomIdAndRoles(rid, _.pluck(roles, '_id'), options).toArray();

    if (!useRealName) {
        return subscriptions;
    }
    return Promise.all(
        subscriptions.map(async (subscription) => {
            const user = await Users.findOneById(subscription.u._id);
            subscription.u.name = user?.name;
            return subscription;
        }),
    );
}