Next Restricted On Empty (#82)

The play next function will not attempt to play a video if the queue is
empty. It will also generate an alert if attempting to skip to the next
video.

Author: kyle8998

js/events.js

@@ -137,11 +137,36 @@ function playNext(roomnum) {
     socket.emit('play next', {}, function(data){
         var videoId = data.videoId
 
-        // Change the video
-        socket.emit('change video', {
-            room: roomnum,
-            videoId: videoId,
-            time: 0
-        });
-    });
+        // IF queue is empty do not try to change
+        if (videoId !== "QUEUE IS EMPTY") {
+            // Change the video
+            socket.emit('change video', {
+                room: roomnum,
+                videoId: videoId,
+                time: 0
+            })
+        }
+        else {
+            // Notify alert
+            $.notify({
+                title: '<strong>Queue</strong>',
+                icon: 'fas fa-list-alt',
+                message: " is empty!"
+            }, {
+                type: 'warning',
+                delay: 400,
+                animate: {
+                    enter: 'animated fadeInUp',
+                    exit: 'animated fadeOutRight'
+                },
+                placement: {
+                    from: "bottom",
+                    align: "right"
+                },
+                offset: 20,
+                spacing: 10,
+                z_index: 1031,
+            });
+        }
+    })
 }

js/host.js

@@ -70,7 +70,7 @@ function disconnected() {
         icon: 'fas fa-users',
         message: " You are now out of sync of the host"
     }, {
-        type: 'warning',
+        type: 'danger',
         delay: 400,
         animate: {
             enter: 'animated fadeInUp',

server.js

@@ -101,7 +101,7 @@ io.sockets.on('connection', function(socket) {
     });
 
     socket.on('play next', function(data, callback) {
-        var videoId = ""
+        var videoId = "QUEUE IS EMPTY"
 
         switch (io.sockets.adapter.rooms['room-' + socket.roomnum].currPlayer) {
             case 0:
@@ -123,6 +123,7 @@ io.sockets.on('connection', function(socket) {
             default:
                 console.log("Error invalid player id")
         }
+        // console.log(videoId)
         // Remove video from the front end
         updateQueueVideos()
         callback({