import { dispatch } from '../../../util/dispatcher';
import { Application , BackendSession} from 'pinus';

export default function (app: Application) {
    return new GateHandler(app);
}

export class GateHandler {
    constructor(private app: Application) {
    }

    /**
     * Gate handler that dispatch user to connectors.
     *
     * @param {Object} msg message from client
     * @param {Object} session
     *
     */
    async queryEntry(msg: {uid: string}, session: BackendSession) {
        let uid = msg.uid;
        if (!uid) {
            return {
                code: 500
            };
        }
        // get all connectors
        let connectors = this.app.getServersByType('connector');
        console.log('ltc connectors', connectors);
        if (!connectors || connectors.length === 0) {
            return {
                code: 500
            };
        }
        // select connector
        let res = dispatch(uid, connectors);
        return {
            code: 200,
            host: res.host,
            port: res.clientPort
        };
    }
}