Added websockts for admin interface

scoreboard/controllers/timer.js

@@ -13,7 +13,7 @@ function pause() {};
 function reset() {};
 function end() {};
 function print() {};
-
+function getValues() {};
 
 function start() {
     if(isPaused == true && durationLeft.asSeconds() != 0) {     // Only allow start if timer ist currently paused and durationLeft is not 0 seconds
@@ -61,6 +61,15 @@ function print() {
     return minutes + ":" + seconds
 }
 
+function getValues() {
+    return {
+        isPaused: isPaused,
+        duration: duration,
+        durationLeft: durationLeft,
+        print: print()
+    };
+}
+
 module.exports = {
-    duration, durationLeft, isPaused, start, pause, reset, end, print
+    duration, durationLeft, isPaused, start, pause, reset, end, print, getValues
-};
+}

scoreboard/public/javascripts/admin.js

@@ -1,3 +1,20 @@
+let wss = "ws://" + window.location.hostname + ":3001"  // Build socketio endpoint from window.location
+const socket = io(wss);                                 // Connect to socketio server
+
+socket.on('connected', (message) => {                   // Once client is connected to websocket
+    console.log("Connected");
+    initialUpdate()                                     // Request important values to update admin frontend
+});
+
+socket.on('timerDurationLeft', (message) => {
+    console.log(message)                                                // Log durationLeft in client console
+    document.getElementById("durationLeft").innerHTML = message;        // Display durationLeft in corresponding html Element
+});
+
+socket.on('timerEnded', (message) => {
+    initialUpdate();                                                    // Update admin frontend to set correct buttonstatus
+});
+
 function updateFrontend(values) {
     values.duration = moment.duration(values.duration)                  // Create moment object from ISO 8601 string
     values.durationLeft = moment.duration(values.durationLeft)          // Create moment object from ISO 8601 string

scoreboard/public/javascripts/index.js

@@ -11,5 +11,5 @@ socket.on('timerDurationLeft', (message) => {
 });
 
 socket.on('timerEnded', (message) => {
-    document.getElementById("durationLeft").innerHTML = "STOP";     // Display "STOP" in same html element as the duration
+    document.getElementById("durationLeft").innerHTML = "ENDE";     // Display "STOP" in same html element as the duration
 });

scoreboard/routes/admin.js

@@ -1,7 +1,7 @@
 var express = require('express');
 var router = express.Router();
 
-let timer = require('../controllers/timer');
+var timer = require('../controllers/timer');
 
 // Express router entpoint to start the timer
 router.get('/timerStart', function(req, res, next) {
@@ -36,6 +36,8 @@ router.get('/timerGetValues', function(req, res, next) {
     res.json(timer.getValues());            // Respond with important values for frontend
 });
 
+// Express router endpoint to switch the score after halftime
+router.get('/scoreSwitch', function(req, res, next) {
     res.render('admin');
 });