RocketChat/Rocket.Chat

import type { ServerMethods } from '@rocket.chat/ddp-client';
import { LivechatVisitors, Messages, LivechatRooms } from '@rocket.chat/models';
import { check } from 'meteor/check';
import { Meteor } from 'meteor/meteor';

import { methodDeprecationLogger } from '../../../lib/server/lib/deprecationWarningLogger';
import { normalizeTransferredByData } from '../lib/Helper';
import { Livechat } from '../lib/LivechatTyped';

declare module '@rocket.chat/ddp-client' {
    // eslint-disable-next-line @typescript-eslint/naming-convention
    interface ServerMethods {
        'livechat:setDepartmentForVisitor'({
            roomId,
            visitorToken,
            departmentId,
        }: {
            roomId: string;
            visitorToken: string;
            departmentId: string;
        }): boolean;
    }
}

Meteor.methods<ServerMethods>({
    async 'livechat:setDepartmentForVisitor'({ roomId, visitorToken, departmentId }) {
        methodDeprecationLogger.method('livechat:setDepartmentForVisitor', '7.0.0');

        check(roomId, String);
        check(visitorToken, String);
        check(departmentId, String);

        const room = await LivechatRooms.findOneById(roomId);
        const visitor = await LivechatVisitors.getVisitorByToken(visitorToken);

        if (!room || room.t !== 'l' || !room.v || room.v.token !== visitor?.token) {
            throw new Meteor.Error('error-invalid-room', 'Invalid room');
        }

        // update visited page history to not expire
        await Messages.keepHistoryForToken(visitorToken);

        const transferData = {
            roomId,
            departmentId,
            transferredBy: normalizeTransferredByData(visitor, room),
        };

        return Livechat.transfer(room, visitor, transferData);
    },
});