node-red-contrib-victron-ble/dist/nodered/victron-ble.js

node-red node to parse Instant Readout advertisement data from Victron BLE devices

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const scanner_1 = require("../scanner");
let scannerInstance = null;
module.exports = function (RED) {
    function getScanner() {
        if (!scannerInstance) {
            scannerInstance = new scanner_1.Scanner();
            scannerInstance.start();
        }
        return scannerInstance;
    }
    RED.httpAdmin.get('/victron-ble/discover', function (req, res) {
        const scanner = getScanner();
        res.json(scanner.getDiscoveredDevices());
    });
    function VictronBleNode(config) {
        RED.nodes.createNode(this, config);
        const node = this;
        const address = (config.address || '').toLowerCase();
        const key = this.credentials.key;
        const scanner = getScanner();
        if (address && key) {
            scanner.setKey(address, key);
        }
        function onPacket(data) {
            if (data.address.toLowerCase() === address.toLocaleLowerCase()) {
                node.send(data);
            }
        }
        scanner.on('parsed', onPacket);
        node.on('close', function () {
            // unregister listener when node stops
            scanner.removeListener('parsed', onPacket);
        });
    }
    RED.nodes.registerType('victron-ble', VictronBleNode, { credentials: { key: { type: "password" } } });
};