RocketChat/Rocket.Chat

import type { IOmnichannelRoom, IOmnichannelServiceLevelAgreements, IUser } from '@rocket.chat/core-typings';
import { OmnichannelServiceLevelAgreements } from '@rocket.chat/models';

import { callbacks } from '../../../../../lib/callbacks';
import { removePriorityFromRoom, updateRoomPriority } from '../api/lib/priorities';
import { removeRoomSLA, updateRoomSLA } from '../api/lib/sla';

const updateSLA = async (room: IOmnichannelRoom, user: Required<Pick<IUser, '_id' | 'username' | 'name'>>, slaId?: string) => {
    if (!slaId) {
        return removeRoomSLA(room._id, user);
    }

    const sla: Pick<IOmnichannelServiceLevelAgreements, '_id' | 'name' | 'dueTimeInMinutes'> | null =
        await OmnichannelServiceLevelAgreements.findOneById(slaId, {
            projection: { _id: 1, name: 1, dueTimeInMinutes: 1 },
        });
    if (!sla) {
        throw new Error(`SLA not found with id: ${slaId}`);
    }

    await updateRoomSLA(room._id, user, sla);
};

const updatePriority = async (room: IOmnichannelRoom, user: Required<Pick<IUser, '_id' | 'username' | 'name'>>, priorityId?: string) => {
    if (!priorityId) {
        return removePriorityFromRoom(room._id, user);
    }

    await updateRoomPriority(room._id, user, priorityId);
};

callbacks.add(
    'livechat.saveInfo',
    async (room, { user, oldRoom }: any) => {
        const { slaId: oldSlaId, priorityId: oldPriorityId } = oldRoom;
        const { slaId: newSlaId, priorityId: newPriorityId } = room;

        if (oldSlaId === newSlaId && oldPriorityId === newPriorityId) {
            return room;
        }
        if (oldSlaId === newSlaId && oldPriorityId !== newPriorityId) {
            await updatePriority(room, user, newPriorityId);
        } else if (oldSlaId !== newSlaId && oldPriorityId === newPriorityId) {
            await updateSLA(room, user, newSlaId);
        } else {
            await Promise.all([updateSLA(room, user, newSlaId), updatePriority(room, user, newPriorityId)]);
        }

        return room as any;
    },
    callbacks.priority.HIGH,
    'livechat-on-save-room-info',
);