btnexus-node/lib/message.js

Baseline libary for btNexus development.

/**
 *  Ophion Cloud Blackout Protocol message
 *
 *  @author Marc Fiedler
 *  @copyright 2020 Blackout Technologies, all rights reserved, all rights reserved
 */

"use_strict";

const uniqid = require('uniqid');
const os = require('os');

module.exports = class Message {
    constructor(intent) {
        this.data = {};
        this.protocolVersion = "5.0";

        if( intent != undefined ){
            // build a standadized header
            this.data = {
                api: {
                    version: this.protocolVersion,
                    intent: intent,
                    time: new Date().getTime(),
                    id: uniqid()
                },
                host: os.hostname()
            }
        }
    }

    updateIntent(intent){
        if( this.data.api != undefined ){
            this.data.api.intent = intent;
        }
    }

    parse(data){
        this.data = JSON.parse(data);

        if( this.data.api.id == undefined ){
            // not all clients support unique ID's
            this.data.api.id = uniqid();
        }
    }

    toString(){
        return JSON.stringify(this.data);
    }
}