prettier formatting

.prettierrc

@@ -0,0 +1,4 @@
+{
+  "singleQuote": true,
+  "printWidth": 140
+}

web/.eslintrc.js

@@ -9,6 +9,7 @@ module.exports = {
     browser: true
   },
   rules: {
+    'no-debugger': 'off'
   },
   globals: {
     chrome: false,

web/app/pods/components/bridge-finder/component.js

@@ -1,15 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Component, observer, computed, on, isNone, run: { later }, $, String: { htmlSafe } } = Ember;
-  Component,
-  observer,
-  computed,
-  on,
-  isNone,
-  run: { later },
-  $,
-  String: { htmlSafe }
-} = Ember;
 
 export default Component.extend({
   elementId: 'bridge-finder',
@@ -31,17 +22,20 @@ export default Component.extend({
   isAuthenticating: computed.notEmpty('bridgePingIntervalHandle'),
 
   // try to authenticate against the bridge here
-  onBridgeIpChange: on('init', observer('bridgeIp', function () {
+  onBridgeIpChange: on(
+    'init',
+    observer('bridgeIp', function() {
       if (!this.get('trial') && !this.get('isAuthenticating')) {
         this.setProperties({
           bridgePingIntervalHandle: setInterval(this.pingBridgeUser.bind(this), this.get('bridgeUsernamePingIntervalTime')),
           bridgeUserNamePingIntervalProgress: 0
         });
       }
-  })),
+    })
+  ),
 
   didInsertElement() {
-    $(document).keypress((event) => {
+    $(document).keypress(event => {
       if (!isNone(this.get('manualBridgeIp')) && event.which === 13) {
         this.send('findBridgeByIp');
       }
@@ -90,10 +84,11 @@ export default Component.extend({
 
     if (bridgeIp !== null && bridgeUserNamePingIntervalProgress < 100) {
       $.ajax('http://' + bridgeIp + '/api', {
-        data: JSON.stringify({ "devicetype": "huegasm" }),
+        data: JSON.stringify({ devicetype: 'huegasm' }),
         contentType: 'application/json',
         type: 'POST'
-      }).done((result, status) => {
+      })
+        .done((result, status) => {
           if (!this.isDestroyed) {
             if (status === 'success' && !result[0].error) {
               this.clearBridgePingIntervalHandle();
@@ -101,16 +96,22 @@ export default Component.extend({
               this.set('bridgeUsername', result[0].success.username);
             }
           }
-      }).fail(() => {
+        })
+        .fail(() => {
           this.clearBridgePingIntervalHandle();
           this.setProperties({
             bridgeConnectError: true,
-          bridgeConnectMessage: htmlSafe('Your network and/or computer security settings are preventing Huegasm from connecting to your Hue bridge.' +
+            bridgeConnectMessage: htmlSafe(
-            '<br><span>Feel free to contact us at <a href="mailto:huegasm.app@gmail.com">huegasm.app@gmail.com</a> if this is unexpected and you need help debugging the problem.</span>')
+              'Your network and/or computer security settings are preventing Huegasm from connecting to your Hue bridge.' +
-        })
+                '<br><span>Feel free to contact us at <a href="mailto:huegasm.app@gmail.com">huegasm.app@gmail.com</a> if this is unexpected and you need help debugging the problem.</span>'
+            )
+          });
         });
 
-      this.incrementProperty('bridgeUserNamePingIntervalProgress', this.get('bridgeUsernamePingIntervalTime') / bridgeUsernamePingMaxTime * 100);
+      this.incrementProperty(
+        'bridgeUserNamePingIntervalProgress',
+        this.get('bridgeUsernamePingIntervalTime') / bridgeUsernamePingMaxTime * 100
+      );
     } else {
       this.clearBridgePingIntervalHandle();
     }
@@ -140,18 +141,24 @@ export default Component.extend({
         });
       } else {
         $.ajax('http://' + manualBridgeIp + '/api', {
-          data: JSON.stringify({ "devicetype": "huegasm" }),
+          data: JSON.stringify({ devicetype: 'huegasm' }),
           contentType: 'application/json',
           type: 'POST'
-        }).fail(() => {
+        })
+          .fail(() => {
             this.set('manualBridgeIpNotFound', true);
-          later(this, function () {
+            later(
+              this,
+              function() {
                 this.set('manualBridgeIpNotFound', false);
-          }, 5000);
+              },
-        }).then(() => {
+              5000
+            );
+          })
+          .then(() => {
             this.send('chooseBridge', manualBridgeIp);
           });
       }
     }
-  },
+  }
 });

web/app/pods/components/bridge-finder/template.hbs

@@ -50,7 +50,7 @@
     {{/unless}}
 
     {{#if bridgeFindMultiple}}
-      <p>Huegasm found multiple hue bridges. <br> Please select the one you want to use for Huegasm.</p>
+      <p>Multiple Hue bridge were found on your network. <br> Please select the one you want to use for Huegasm.</p>
 
       <div id="bridge-button-group">
         {{#each multipleBridgeIps as |bridge|}}

web/app/pods/components/hue-controls/component.js

@@ -51,7 +51,9 @@ export default Component.extend({
       // here's a weird way to automatically initialize bootstrap tooltips
       let observer = new MutationObserver(function(mutations) {
         let haveTooltip = !mutations.every(function(mutation) {
-          return isEmpty(mutation.addedNodes) || isNone(mutation.addedNodes[0].classList) || mutation.addedNodes[0].classList.contains('tooltip');
+          return (
+            isEmpty(mutation.addedNodes) || isNone(mutation.addedNodes[0].classList) || mutation.addedNodes[0].classList.contains('tooltip')
+          );
         });
 
         if (haveTooltip) {
@@ -92,7 +94,9 @@ export default Component.extend({
       if (isNone(this.get('lightsData'))) {
         this.send('clearBridge');
       } else if (this.get('displayNextFailure')) {
-        this.get('notify').warning({ html: '<div class="alert alert-warning" role="alert">Error retrieving data from your lights. Yikes.</div>' });
+        this.get('notify').warning({
+          html: '<div class="alert alert-warning" role="alert">Error retrieving data from your lights. Yikes.</div>'
+        });
         this.set('displayNextFailure', false);
 
         later(
@@ -174,7 +178,8 @@ export default Component.extend({
           },
           {
             element: $('#playlist md-menu')[0],
-            intro: '<img src="/assets/images/soundcloudUrl.png" id="soundcloud-tutorial">You can add songs from SoundCloud by copy and pasting the URL shown here'
+            intro:
+              '<img src="/assets/images/soundcloudUrl.png" id="soundcloud-tutorial">You can add songs from SoundCloud by copy and pasting the URL shown here'
           },
           {
             element: '#player-area',
@@ -196,7 +201,9 @@ export default Component.extend({
           },
           {
             element: '#beat-container',
-            intro: 'An interactive speaker that will bump when a beat is registered. <br><br>' + '<i><b>TIP</b>: Click on the center of the speaker to simulate a beat.</i>',
+            intro:
+              'An interactive speaker that will bump when a beat is registered. <br><br>' +
+              '<i><b>TIP</b>: Click on the center of the speaker to simulate a beat.</i>',
             position: 'top'
           },
           {

web/app/pods/components/huegasm-app/component.js

@@ -1,10 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Component, isEmpty, $ } = Ember;
-  Component,
-  isEmpty,
-  $
-} = Ember;
 
 export default Component.extend({
   bridgeIp: null,

web/app/pods/components/huegasm-footer/component.js

@@ -1,9 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Component, computed } = Ember;
-  Component,
-  computed
-} = Ember;
 
 export default Component.extend({
   tagName: 'footer',

web/app/pods/components/light-group/component.js

@@ -1,14 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { A, Component, computed, isEmpty, isNone, observer, $ } = Ember;
-  A,
-  Component,
-  computed,
-  isEmpty,
-  isNone,
-  observer,
-  $
-} = Ember;
 
 export default Component.extend({
   elementId: 'active-lights',
@@ -211,7 +203,7 @@ export default Component.extend({
       }
     },
     lightStartHover(id) {
-      if (!window.matchMedia || (window.matchMedia("(min-width: 768px)").matches)) {
+      if (!window.matchMedia || window.matchMedia('(min-width: 768px)').matches) {
         let activeLights = this.get('activeLights'),
           hoveredLight = this.get('lightsList').filter(function(light) {
             return light.activeClass !== 'unreachable' && light.id === id[0] && activeLights.indexOf(id) !== -1;
@@ -219,7 +211,7 @@ export default Component.extend({
 
         if (!isEmpty(hoveredLight) && this.get('noHover') !== true) {
           $.ajax(this.get('apiURL') + '/lights/' + id + '/state', {
-            data: JSON.stringify({ "alert": "lselect" }),
+            data: JSON.stringify({ alert: 'lselect' }),
             contentType: 'application/json',
             type: 'PUT'
           });
@@ -232,14 +224,14 @@ export default Component.extend({
       }
     },
     lightStopHover(id) {
-      if (!window.matchMedia || (window.matchMedia("(min-width: 768px)").matches)) {
+      if (!window.matchMedia || window.matchMedia('(min-width: 768px)').matches) {
         let hoveredLight = this.get('lightsList').filter(function(light) {
           return light.activeClass !== 'unreachable' && light.id === id[0];
         });
 
         if (!isEmpty(hoveredLight) && this.get('noHover') !== true) {
           $.ajax(this.get('apiURL') + '/lights/' + id + '/state', {
-            data: JSON.stringify({ "alert": "none" }),
+            data: JSON.stringify({ alert: 'none' }),
             contentType: 'application/json',
             type: 'PUT'
           });

web/app/pods/components/lights-tab/color-picker/component.js

@@ -1,9 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Component, $ } = Ember;
-  Component,
-  $
-} = Ember;
 
 export default Component.extend({
   elementId: 'color-picker',

web/app/pods/components/music-tab/add-soundcloud-sound-modal/component.js

@@ -1,14 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Component, observer, computed, isEmpty, isNone, run: { later }, $ } = Ember;
-  Component,
-  observer,
-  computed,
-  isEmpty,
-  isNone,
-  run: { later },
-  $
-} = Ember;
 
 export default Component.extend({
   url: null,
@@ -27,7 +19,7 @@ export default Component.extend({
   }),
 
   didInsertElement: function() {
-    $(document).keypress((event) => {
+    $(document).keypress(event => {
       if (!this.get('saveDisabled') && event.which === 13) {
         this.send('add');
       }

web/app/pods/components/music-tab/component.js

@@ -17,7 +17,7 @@ export default Component.extend(helperMixin, visualizerMixin, {
         title = song.title;
 
         if (song.artist) {
-          title += (' - ' + song.artist);
+          title += ' - ' + song.artist;
         }
       } else {
         title = song.fileName;
@@ -64,12 +64,14 @@ export default Component.extend(helperMixin, visualizerMixin, {
       oldBeatPrefCache = this.get('oldBeatPrefCache'),
       newOldBeatPrefCache = null;
 
-    if (!isNone(preference)) { // load existing beat prefs
+    if (!isNone(preference)) {
+      // load existing beat prefs
       newOldBeatPrefCache = { threshold: this.get('threshold') };
 
       this.changePlayerControl('threshold', preference.threshold);
       this.set('usingBeatPreferences', true);
-    } else if (!isNone(oldBeatPrefCache)) { // revert to using beat prefs before the remembered song
+    } else if (!isNone(oldBeatPrefCache)) {
+      // revert to using beat prefs before the remembered song
       this.changePlayerControl('threshold', oldBeatPrefCache.threshold);
       this.set('usingBeatPreferences', false);
     }
@@ -106,7 +108,12 @@ export default Component.extend(helperMixin, visualizerMixin, {
 
   dragLeave() {
     // need to delay the dragLeave notification to avoid flickering (hovering over some page elements causes this event to be sent)
-    this.set('dragLeaveTimeoutHandle', setTimeout(() => { this.set('dragging', false); }, 500));
+    this.set(
+      'dragLeaveTimeoutHandle',
+      setTimeout(() => {
+        this.set('dragging', false);
+      }, 500)
+    );
   },
 
   simulateKick() {
@@ -168,20 +175,32 @@ export default Component.extend(helperMixin, visualizerMixin, {
         timeToBriOff = 80;
       }
 
-      later(this, () => {
+      later(
+        this,
+        () => {
           stimulateLight(light, brightnessRange[1], true);
           later(this, stimulateLight, light, brightnessRange[0], false, color, timeToBriOff);
-      }, this.get('beatDelay'));
+        },
+        this.get('beatDelay')
+      );
     }
 
     this.set('paused', true);
-    later(this, function () {
+    later(
+      this,
+      function() {
         this.set('paused', false);
-    }, 200);
+      },
+      200
+    );
 
     //work the music beat area - simulate the speaker vibration by running a CSS animation on it
-    $('#beat-speaker-center-outer').velocity({ blur: 3 }, 100).velocity({ blur: 0 }, 100);
+    $('#beat-speaker-center-outer')
-    $('#beat-speaker-center-inner').velocity({ scale: 1.05 }, 100).velocity({ scale: 1 }, 100);
+      .velocity({ blur: 3 }, 100)
+      .velocity({ blur: 0 }, 100);
+    $('#beat-speaker-center-inner')
+      .velocity({ scale: 1.05 }, 100)
+      .velocity({ scale: 1 }, 100);
   },
 
   doAmbience(mag) {
@@ -194,7 +213,8 @@ export default Component.extend(helperMixin, visualizerMixin, {
             contentType: 'application/json',
             type: 'PUT'
           });
-      }, lightIndex = Math.floor(Math.random() * activeLights.length);
+        },
+        lightIndex = Math.floor(Math.random() * activeLights.length);
 
       // let's try not to select the same light twice in a row
       if (activeLights.length > 1) {
@@ -217,7 +237,7 @@ export default Component.extend(helperMixin, visualizerMixin, {
       }, 1000);
 
       this.pauseAmbience = true;
-      let pauseTime = Math.floor(1000 + (2000 / activeLights.length));
+      let pauseTime = Math.floor(1000 + 2000 / activeLights.length);
 
       setTimeout(() => {
         this.pauseAmbience = false;
@@ -228,9 +248,15 @@ export default Component.extend(helperMixin, visualizerMixin, {
   init() {
     this._super(...arguments);
 
-    window.requestAnimationFrame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.msRequestAnimationFrame;
+    window.requestAnimationFrame =
-    window.cancelAnimationFrame = window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || window.msCancelAnimationFrame;
+      window.requestAnimationFrame ||
-    navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
+      window.webkitRequestAnimationFrame ||
+      window.mozRequestAnimationFrame ||
+      window.msRequestAnimationFrame;
+    window.cancelAnimationFrame =
+      window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || window.msCancelAnimationFrame;
+    navigator.getUserMedia =
+      navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
 
     let dancer = new Dancer(),
       storage = this.get('storage'),
@@ -241,7 +267,7 @@ export default Component.extend(helperMixin, visualizerMixin, {
             this.simulateKick(mag, ratioKickMag);
           }
         },
-        offKick: (mag) => {
+        offKick: mag => {
           if (this.get('ambienceMode')) {
             this.doAmbience(mag);
           }
@@ -255,7 +281,25 @@ export default Component.extend(helperMixin, visualizerMixin, {
       kick: kick
     });
 
-    ['volume', 'shuffle', 'repeat', 'volumeMuted', 'threshold', 'ambienceMode', 'blackoutMode', 'playerBottomDisplayed', 'songBeatPreferences', 'firstVisit', 'currentVisName', 'playQueue', 'playQueuePointer', 'flashingTransitions', 'hueRange', 'brightnessRange', 'beatDelay'].forEach((item) => {
+    [
+      'volume',
+      'shuffle',
+      'repeat',
+      'volumeMuted',
+      'threshold',
+      'ambienceMode',
+      'blackoutMode',
+      'playerBottomDisplayed',
+      'songBeatPreferences',
+      'firstVisit',
+      'currentVisName',
+      'playQueue',
+      'playQueuePointer',
+      'flashingTransitions',
+      'hueRange',
+      'brightnessRange',
+      'beatDelay'
+    ].forEach(item => {
       if (!isNone(storage.get('huegasm.' + item))) {
         let itemVal = storage.get('huegasm.' + item);
 
@@ -286,7 +330,7 @@ export default Component.extend(helperMixin, visualizerMixin, {
       this.value = null; // reset in case upload the second file again
     });
 
-    $(document).on('click', '.alert', (event) => {
+    $(document).on('click', '.alert', event => {
       $(event.target).addClass('removed');
     });
 
@@ -295,18 +339,18 @@ export default Component.extend(helperMixin, visualizerMixin, {
       event.preventDefault();
     });
 
-    $(document).keypress((event) => {
+    $(document).keypress(event => {
       if (event.which === 32 && event.target.type !== 'text') {
         this.send('play');
       }
     });
 
-    this.$().on('drop', '#play-list-area', (event) => {
+    this.$().on('drop', '#play-list-area', event => {
       this.send('dropFiles', event.dataTransfer.files);
     });
 
     // control the volume by scrolling up/down
-    $('#player-area').on('mousewheel', (event) => {
+    $('#player-area').on('mousewheel', event => {
       if (this.get('playQueueNotEmpty')) {
         let scrollSize = 5;
 
@@ -368,8 +412,9 @@ export default Component.extend(helperMixin, visualizerMixin, {
     },
     handleNewSoundCloudURL(URL) {
       if (URL) {
-        SC.resolve(URL).then((resultObj) => {
+        SC.resolve(URL).then(
-          let processResult = (result) => {
+          resultObj => {
+            let processResult = result => {
                 if (result.kind === 'user') {
                   this.get('notify').alert({ html: this.get('scUserNotSupportedHtml') });
                 } else if (result.kind === 'track') {
@@ -384,9 +429,24 @@ export default Component.extend(helperMixin, visualizerMixin, {
 
                     $.get(picture)
                       .done(() => {
-                    this.get('playQueue').pushObject({ url: result.stream_url + '?client_id=' + this.get('SC_CLIENT_ID'), fileName: result.title + ' - ' + result.user.username, artist: result.user.username, scUrl: result.permalink_url, title: result.title, picture: picture });
+                        this.get('playQueue').pushObject({
-                  }).fail(() => { // no picture
+                          url: result.stream_url + '?client_id=' + this.get('SC_CLIENT_ID'),
-                    this.get('playQueue').pushObject({ url: result.stream_url + '?client_id=' + this.get('SC_CLIENT_ID'), fileName: result.title + ' - ' + result.user.username, artist: result.user.username, scUrl: result.permalink_url, title: result.title });
+                          fileName: result.title + ' - ' + result.user.username,
+                          artist: result.user.username,
+                          scUrl: result.permalink_url,
+                          title: result.title,
+                          picture: picture
+                        });
+                      })
+                      .fail(() => {
+                        // no picture
+                        this.get('playQueue').pushObject({
+                          url: result.stream_url + '?client_id=' + this.get('SC_CLIENT_ID'),
+                          fileName: result.title + ' - ' + result.user.username,
+                          artist: result.user.username,
+                          scUrl: result.permalink_url,
+                          title: result.title
+                        });
                       });
                   } else {
                     failedSongs.push(result.title);
@@ -418,9 +478,11 @@ export default Component.extend(helperMixin, visualizerMixin, {
                 this.send('next');
               }
             }
-        }, () => {
+          },
+          () => {
             this.get('notify').alert({ html: this.get('urlNotFoundHtml')(URL) });
-        });
+          }
+        );
       }
 
       this.set('isShowingAddSoundCloudModal', false);
@@ -435,7 +497,8 @@ export default Component.extend(helperMixin, visualizerMixin, {
       this.changePlayerControl('playerBottomDisplayed', !this.get('playerBottomDisplayed'));
     },
     goToSong(index, playSong, scrollToSong) {
-      let dancer = this.get('dancer'), playQueue = this.get('playQueue');
+      let dancer = this.get('dancer'),
+        playQueue = this.get('playQueue');
 
       if (dancer.audio) {
         this.clearCurrentAudio(true);
@@ -445,12 +508,12 @@ export default Component.extend(helperMixin, visualizerMixin, {
         let audio = new Audio();
         audio.src = this.get('playQueue')[index].url;
 
-        audio.crossOrigin = "anonymous";
+        audio.crossOrigin = 'anonymous';
         audio.oncanplay = () => {
           this.set('timeTotal', Math.floor(audio.duration));
           this.set('soundCloudFuckUps', 0);
         };
-        audio.onerror = (event) => {
+        audio.onerror = event => {
           let playQueuePointer = this.get('playQueuePointer'),
             song = this.get('playQueue')[playQueuePointer];
 
@@ -514,7 +577,9 @@ export default Component.extend(helperMixin, visualizerMixin, {
       if (isEmpty($('#player-controls:hover')) && this.get('playQueuePointer') !== -1) {
         this.send('play');
 
-        $('#play-notification').velocity({ opacity: 0.8, scale: 1 }, 0).velocity({ opacity: 0, scale: 3 }, 500);
+        $('#play-notification')
+          .velocity({ opacity: 0.8, scale: 1 }, 0)
+          .velocity({ opacity: 0, scale: 3 }, 500);
       }
     },
     play(replayPause) {
@@ -528,12 +593,12 @@ export default Component.extend(helperMixin, visualizerMixin, {
           dancer.pause();
 
           let preMusicLightsDataCache = this.get('preMusicLightsDataCache'),
-            updateLight = (lightIndex) => {
+            updateLight = lightIndex => {
               $.ajax(this.get('apiURL') + '/lights/' + lightIndex + '/state', {
                 data: JSON.stringify({
-                  'on': preMusicLightsDataCache[lightIndex].state.on,
+                  on: preMusicLightsDataCache[lightIndex].state.on,
-                  'hue': preMusicLightsDataCache[lightIndex].state.hue,
+                  hue: preMusicLightsDataCache[lightIndex].state.hue,
-                  'bri': preMusicLightsDataCache[lightIndex].state.bri
+                  bri: preMusicLightsDataCache[lightIndex].state.bri
                 }),
                 contentType: 'application/json',
                 type: 'PUT'
@@ -587,17 +652,19 @@ export default Component.extend(helperMixin, visualizerMixin, {
     next(repeatAll) {
       let playQueuePointer = this.get('playQueuePointer'),
         playQueue = this.get('playQueue'),
-        nextSong = (playQueuePointer + 1),
+        nextSong = playQueuePointer + 1,
         repeat = this.get('repeat'),
         shuffle = this.get('shuffle');
 
-      if (repeat === 2) { // repeating one song takes precedence over shuffling
+      if (repeat === 2) {
+        // repeating one song takes precedence over shuffling
         if (playQueuePointer === -1 && playQueue.length > 0) {
           nextSong = 0;
         } else {
           nextSong = playQueuePointer;
         }
-      } else if (shuffle) { // next shuffle song
+      } else if (shuffle) {
+        // next shuffle song
         let shufflePlayed = this.get('shufflePlayed');
 
         // played all the song in shuffle mode
@@ -631,19 +698,22 @@ export default Component.extend(helperMixin, visualizerMixin, {
         let nextSong = this.get('playQueuePointer'),
           playQueue = this.get('playQueue');
 
-        if (this.get('shuffle') && !isNone(playQueue[nextSong])) { // go to the previously shuffled song
+        if (this.get('shuffle') && !isNone(playQueue[nextSong])) {
+          // go to the previously shuffled song
           let shufflePlayed = this.get('shufflePlayed'),
             shuffledSongIndx = this.get('shufflePlayed').indexOf(playQueue[nextSong].url),
             i = 0;
 
-          if (shufflePlayed.length > 0 && shuffledSongIndx !== -1) { // only if there was one
+          if (shufflePlayed.length > 0 && shuffledSongIndx !== -1) {
+            // only if there was one
             nextSong = shuffledSongIndx - 1;
 
             if (nextSong < 0) {
               nextSong = shufflePlayed.length - 1;
             }
 
-            playQueue.some(function (item) { // try to find the previous song id
+            playQueue.some(function(item) {
+              // try to find the previous song id
               if (item.url === shufflePlayed[nextSong]) {
                 nextSong = i;
                 return true;
@@ -729,20 +799,20 @@ export default Component.extend(helperMixin, visualizerMixin, {
       let self = this,
         playQueue = this.get('playQueue'),
         updatePlayQueue = function() {
-          let tags = ID3.getAllTags("local"),
+          let tags = ID3.getAllTags('local'),
             picture = null;
 
           if (tags.picture) {
-            let base64String = "";
+            let base64String = '';
             for (let i = 0; i < tags.picture.data.length; i++) {
               base64String += String.fromCharCode(tags.picture.data[i]);
             }
 
-            picture = "data:" + tags.picture.format + ";base64," + window.btoa(base64String);
+            picture = 'data:' + tags.picture.format + ';base64,' + window.btoa(base64String);
           }
 
           playQueue.pushObject({
-            fileName: this.name.replace(/\.[^/.]+$/, ""),
+            fileName: this.name.replace(/\.[^/.]+$/, ''),
             url: URL.createObjectURL(this),
             artist: tags.artist,
             title: tags.title,
@@ -762,7 +832,7 @@ export default Component.extend(helperMixin, visualizerMixin, {
           let file = files[key];
 
           if (file.type.startsWith('audio') || file.type.startsWith('video')) {
-            ID3.loadTags("local", updatePlayQueue.bind(file), {
+            ID3.loadTags('local', updatePlayQueue.bind(file), {
               dataReader: new FileAPIReader(file),
               tags: ['title', 'artist', 'album', 'track', 'picture']
             });

web/app/pods/components/music-tab/mixins/helpers.js

@@ -147,7 +147,9 @@ export default Mixin.create({
     '<div class="alert alert-danger" role="alert">The SoundCloud API is not seving the audio properly. More details <a href="https://www.soundcloudcommunity.com/soundcloud/topics/some-soundcloud-cdn-hosted-tracks-dont-have-access-control-allow-origin-header" target="_blank" rel="noopener noreferrer">HERE</a>.</div>',
   notStreamableHtml(fileNames) {
     let html =
-      '<div class="alert alert-danger" role="alert">The following file(s) could not be added because they are not allowed to be streamed:<br>' + fileNames.toString().replace(/,/g, '<br>') + '</div>';
+      '<div class="alert alert-danger" role="alert">The following file(s) could not be added because they are not allowed to be streamed:<br>' +
+      fileNames.toString().replace(/,/g, '<br>') +
+      '</div>';
 
     return html;
   },
@@ -319,7 +321,10 @@ export default Mixin.create({
     }
   }),
 
-  onOptionChange: observer('flashingTransitions', 'playQueue.[]', 'playQueuePointer', 'ambienceMode', 'blackoutMode', function(self, option) {
+  onOptionChange: observer('flashingTransitions', 'playQueue.[]', 'playQueuePointer', 'ambienceMode', 'blackoutMode', function(
+    self,
+    option
+  ) {
     option = option.replace('.[]', '');
     let value = this.get(option);
 

web/app/pods/components/music-tab/mixins/visualizer.js

@@ -1,10 +1,6 @@
 import Ember from 'ember';
 
-const {
+const { Mixin, observer, $ } = Ember;
-  Mixin,
-  observer,
-  $
-} = Ember;
 
 export default Mixin.create({
   currentVisName: 'None',
@@ -30,7 +26,8 @@ export default Mixin.create({
       playerArea = $('#player-area'),
       ctx = canvas.getContext('2d'),
       spacing = 2,
-      h = playerArea.height(), w;
+      h = playerArea.height(),
+      w;
 
     canvas.height = h;
 
@@ -71,7 +68,7 @@ export default Mixin.create({
         ctx.beginPath();
         ctx.moveTo(0, h / 2);
         for (let i = 0, l = waveform.length; i < l && i < count; i++) {
-          ctx.lineTo(i * ( spacing + width ), ( h / 2 ) + waveform[i] * ( h / 2 ));
+          ctx.lineTo(i * (spacing + width), h / 2 + waveform[i] * (h / 2));
         }
         ctx.stroke();
         ctx.closePath();