RocketChat/Rocket.Chat

import { LivechatDepartmentAgents, Users } from '@rocket.chat/models';

import { callbacks } from '../../../../lib/callbacks';
import { settings } from '../../../settings/server';

callbacks.add(
    'livechat.beforeDelegateAgent',
    async (agent, { department } = {}) => {
        if (agent) {
            return agent;
        }

        if (!settings.get('Livechat_assign_new_conversation_to_bot')) {
            return null;
        }

        if (department) {
            return LivechatDepartmentAgents.getNextBotForDepartment(department);
        }

        return Users.getNextBotAgent();
    },
    callbacks.priority.HIGH,
    'livechat-before-delegate-agent',
);