import { STATUS } from './../../../consts/statusCode';
import { dispatch } from '../../../util/dispatcher';
import { Application , BackendSession} from 'pinus';
import { resResult } from '../../../pubUtils/util';

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: {userCode: string}, session: BackendSession) {
        let { userCode } = msg;
        if (!userCode) {
            return resResult(STATUS.WRONG_PARMS);
        }
        // get all connectors
        let connectors = this.app.getServersByType('connector');
        console.log(connectors);
        if (!connectors || connectors.length === 0) {
            return resResult(STATUS.CONNECTOR_ERR);
        }
        // select connector
        let res = dispatch(userCode, connectors);
        if(process.env.NODE_ENV=='local') {
            return resResult(STATUS.SUCCESS, {host: '127.0.0.1', port: res.clientPort});
        } else {
            return resResult(STATUS.SUCCESS, {host: res.clientHost, port: res.clientPort});
        }
    }
}