RocketChat/Rocket.Chat

import type { IRoom } from '@rocket.chat/core-typings';
import { Rooms } from '@rocket.chat/models';

import type { SubscribedRoomsForUserWithDetails } from './getRoomsWithSingleOwner';

export const getUserSingleOwnedRooms = async function (subscribedRooms: SubscribedRoomsForUserWithDetails[]) {
    const roomsThatWillChangeOwner = subscribedRooms
        .filter(({ shouldChangeOwner }) => shouldChangeOwner)
        .map(({ rid }: { rid: string }) => rid);
    const roomsThatWillBeRemoved = subscribedRooms.filter(({ shouldBeRemoved }) => shouldBeRemoved).map(({ rid }: { rid: string }) => rid);

    const roomIds = roomsThatWillBeRemoved.concat(roomsThatWillChangeOwner);
    const rooms = Rooms.findByIds(roomIds, { projection: { _id: 1, name: 1, fname: 1 } });

    const result = {
        shouldBeRemoved: [] as string[],
        shouldChangeOwner: [] as string[],
    };

    await rooms.forEach((room: IRoom) => {
        const name = room.fname || room.name;
        if (roomsThatWillBeRemoved.includes(room._id)) {
            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
            result.shouldBeRemoved.push(name!);
        } else {
            // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
            result.shouldChangeOwner.push(name!);
        }
    });

    return result;
};