casa-calida/lib/CasaCalida.js

Connects your RaZberry to the casa-calida servers. Runs directly on your Raspberry Pi.

'use strict';

/**
 * @author <a href="mailto:stefan@stefanmayer.me">Stefan Mayer</a>
 */

const WebSocket = require('ws');
const log = require('./logger');
const request = require('./utils/request');
const url = require('./urls').casacalida;
const config = require('./config');
let loginPolling = null;

function sendLogin(socket) {
    socket.send(JSON.stringify({
        type: 'login',
        token: config.getToken()
    }));
}

const protocolMapping = {};

const CasaCalida = {
    connect() {
        return new Promise((resolve, reject) => {
            const socket = new WebSocket(`${config.getCasaClidaWebsocketBaseUrl()}/iot/`);
            socket.onmessage = e => {
                const data = JSON.parse(e.data);
                console.log(data); //TODO remove
                switch (data.type) {
                    case 'login':
                        if (loginPolling) {
                            clearInterval(loginPolling);
                            loginPolling = null;
                        }
                        log.info(`Logged in at CasaCalida with user ${data.user}`);
                        resolve(socket);
                        break;
                    case 'actuator':
                        if (protocolMapping[data.protocol]) {
                            protocolMapping[data.protocol].action(data.id, data.value);
                        }
                        break;
                }
            };
            socket.onopen = () => {
                log.verbose(`Connection to CasaCalida opened`);
                loginPolling = setInterval(sendLogin.bind(null, socket), 200);
                sendLogin(socket);
            };
            socket.onclose = () => {
                if (loginPolling) {
                    clearInterval(loginPolling);
                    loginPolling = null;
                }
                log.info(`Connection to casacalida closed`);
                throw new Error('CasaCalida connection closed');
            };
            socket.onerror = e => {
                if (loginPolling) {
                    clearInterval(loginPolling);
                    loginPolling = null;
                }
                log.error(`Couldn't connect to casacalida. ${e}`);
                reject(e);
            };
        });
    },

    register(protocol, instance) {
        protocolMapping[protocol] = instance;
    },

    fullUpdate(socket, update) {
        if (!socket) {
            throw new Error('Not connected to CasaCalida');
        }

        //console.log('Sending full update', update[0].name, update[0].devices); //TODO remove

        socket.send(JSON.stringify({
            type: 'fullupdate',
            data: update
        }));
    },

    incrementalUpdate(socket, update) {
        if (!socket) {
            throw new Error('Not connected to CasaCalida');
        }

        //console.log('Sending update', update[0].name, update[0].sensors); //TODO remove

        socket.send(JSON.stringify({
            type: 'update',
            data: update
        }));
    }
};

module.exports = CasaCalida;