RocketChat/Rocket.Chat

import { MeteorError, Omnichannel } from '@rocket.chat/core-services';
import type { IRoom } from '@rocket.chat/core-typings';
import { isOmnichannelRoom, type IMessage } from '@rocket.chat/core-typings';

export class BeforeSaveCheckMAC {
    async isWithinLimits({ message, room }: { message: IMessage; room: IRoom }): Promise<void> {
        if (!isOmnichannelRoom(room)) {
            return;
        }

        if (message.token) {
            return;
        }

        if (message.t) {
            return;
        }

        const canSendMessage = await Omnichannel.isWithinMACLimit(room);
        if (!canSendMessage) {
            throw new MeteorError('error-mac-limit-reached');
        }
    }
}