Adding functional script

.gitignore

+/node_modules
+package-lock.json
+settings.txt

NodeHue.js

+'use strict';
+const fs = require('fs');
+const SerialPort = require('serialport');
+const Readline = require('@serialport/parser-readline');
+const axios = require('axios');
+let errorState = false;
+
+
+readFile();
+
+function readFile() {
+fs.readFile('./settings.txt', 'utf8' , (err, data) => {
+  if (err) {
+	if(err.code==='ENOENT'){
+		setupFile();
+		return;
+	}
+    console.error(err);
+    return
+  }
+  log("Opening on port: " + JSON.parse(data).port);
+  start(JSON.parse(data).port);
+});
+}
+
+function setupFile() {
+  log('-------------');
+  log(`Port can be found in Arduino IDE -> Tools -> Port`)
+  log(`can also be found in down-right corner of Arduino IDE`)
+  log('-------------');
+  log(`Avaliable ports`)
+  SerialPort.list().then((list) => {list.forEach(obj => process.stdout.write(obj.path + ", "))
+  console.log();});
+  askForInfo('Please enter the name of the port used for Arduino:', (data) => {
+    if(data === 'exit\n'){
+      process.exit();
+    } else {
+      const path = data.replace(/(\r\n|\n|\r)/gm, "");
+      log('Port set to: ' + path);
+      writeFile('settings.txt', {port: path}, readFile);
+    }
+  });
+}
+
+function writeFile(filename, data, callback){
+  fs.writeFile(filename, JSON.stringify(data), (err) => {
+    if (err) throw err;
+    log(`File has been created`);
+    log('-------------\n');
+    callback();
+   });
+}
+
+function askForInfo(line, callback){
+  setTimeout(() => {
+  var standard_input = process.stdin;
+  standard_input.setEncoding('utf-8');
+  log('-------------');
+  log(line, true);
+
+  standard_input.once('data', callback);
+  },500);
+}
+
+function errMessage(err){
+  console.log('\x1b[31m', '#####################################');
+  console.log('\x1b[31m', err);
+  console.log('\x1b[31m', '#####################################', '\x1b[0m');
+}
+function errOneLine(err){
+  console.log('\x1b[31m', err, '\x1b[0m');
+}
+
+function errBar(){
+  console.log('\x1b[31m', '#####################################', '\x1b[0m');
+}
+
+function portError(err){
+  const errCode = String(err);
+  if(errCode.includes('File not found')){
+    errMessage('Could not open Serial Port!');
+    setupFile();
+  } else if(errCode.includes('Access denied')){
+    errMessage('Serial Port is busy. Close Arduino Terminal or wait for Arduino to finish uploading');
+    askForInfo('Hit Enter to try again',readFile);
+  } else {
+    log(err);
+  }
+}
+
+function start(path){
+const port = new SerialPort(path , { baudRate: 115200 });
+port.on('error', portError); 
+const parser = new Readline();
+port.pipe(parser);
+
+parser.on('data', line => {
+  if(line.substring(0,7) === 'http://'){
+    const input = line.split('|');
+    const data = JSON.parse(input[1]);
+    if(data.hue !== undefined){
+      if(data.hue < 0){
+        data.hue += 65536;
+      }
+    }
+    sendData(input[0], data);
+    if(!errorState)
+      log(`> ${input[0]}::${JSON.stringify(data)}`);
+  } else {
+    console.log('\x1b[36m', `> ${line}`, '\x1b[0m');
+  }
+});
+}
+
+function sendData(url, data){
+  if(!errorState){
+  axios.put(url, data, {timeout: 4000})
+  .then(function (response) {
+    if(JSON.parse(response)[0].success === undefined){
+      errMessage('Connected to the bridge, but did not find bulb! Please check');
+      ErrOneLine('>>> You use the right bulb ID!');
+      ErrOneLine('>>> Your bulb has power');
+      errBar();
+      triggerErrorState();
+    } else {
+      console.log('\x1b[32m', '--- SUCCESSFUL TRANSFER ---', '\x1b[0m');
+    }
+  })
+  .catch(function (error) {
+    if(!errorState) {
+      if(error.code === 'ECONNABORTED'){
+        errMessage('Could not reach bridge. Check the following to fix:');
+        errOneLine('>>> Join same network as the bridge!');
+        errOneLine('>>> Turn on the bridge');
+        errOneLine('>>> Ensure you use the right IP adresse for the bridge');
+        errBar();  
+      } else {
+        errOneLine(JSON.stringify(error));
+        errOneLine('--- SOMETHING WENT WRONG ---');
+      }
+      triggerErrorState();
+    }
+  });
+}
+}
+
+function triggerErrorState(){
+  errorState = true;
+  clearTimeout(triggerErrorState.timeout);
+  triggerErrorState.timeout = setTimeout(() => {errorState = false;},2000);
+}
+
+
+function log(str, bool = false){
+  console.log(bool ? '\x1b[1m' : '\x1b[0m',str);
+}
\ No newline at end of file

NodeHueInstall.sh

+echo DOWNLOADING AND INSTALLING NECCESSARY FILES
+npm i
+echo FINISHED
+echo Press enter to exit
+read varname
\ No newline at end of file

NodeHueLaunch.sh

+node NodeHue.js
+echo Press enter to exit
+read varname
\ No newline at end of file

package.json

+{
+  "name": "arduino-hue-project",
+  "version": "1.0.0",
+  "description": "Ships data to hue from Arduino",
+  "main": "./main.js",
+  "repository": {
+    "type": "git",
+    "url": "https://gitlab.au.dk/au648662/arduinohue20.git"
+  },
+  "dependencies": {
+    "axios": "0.20.0",
+    "serialport": "9.0.1"
+  }
+}