smartpi-etemperature-values.js

module.exports = function(RED) {

    function SmartPiEtemperatureValues(config) {
        
        RED.nodes.createNode(this, config);

        var node = this;
        this.indicator = config.indicator;
        this.temperaturefile = config.temperaturefile;

        var path = this.temperaturefile
        
        console.log("Temperaturfile: "+path);
        console.log("Type: "+typeof(path));

        const fs = require('fs');
        const watch = require('node-watch');


        (function me(){
            fs.stat(path, function(err, stat) {
                if (err == null) {

                    watch(path, { recursive: false }, function(evt, name) {
                        fs.readFile(path, 'utf8', function(err, data) {
                            if (err) {
                                return console.log(err);
                            }
                            var values = data.split(';');
                            var output = {
                                "date": values[0].replace(/['"]+/g, ''),
                                "t1": parseFloat(values[1]),
                                "t2": parseFloat(values[2]),
                                "t3": parseFloat(values[3]),
                                "t4": parseFloat(values[4]),
                                "t5": parseFloat(values[5]),
                                "t6": parseFloat(values[6]),
                                "t7": parseFloat(values[7]),
                                "t8": parseFloat(values[8]),
                                "t9": parseFloat(values[9]),
                                "t10": parseFloat(values[10]),
                                "t11": parseFloat(values[11]),
                                "t12": parseFloat(values[12]),
                                "t13": parseFloat(values[13]),
                                "t14": parseFloat(values[14]),
                                "t15": parseFloat(values[15]),
                                "t16": parseFloat(values[16]),
                            }
                            node.send({ payload: output });
                        });
                    });


                } else if (err.code === 'ENOENT') {
                    console.log('File does not exist');
                    
                } else {
                    console.log('Some other error: ', err.code);
                }
            });

            setTimeout(me, 10000);
        })();


        

    }



    RED.nodes.registerType("smartpi-e.temperature-values", SmartPiEtemperatureValues);
}