diff --git a/src/ext/lib/video-data/PlayerData.js b/src/ext/lib/video-data/PlayerData.ts
similarity index 96%
rename from src/ext/lib/video-data/PlayerData.js
rename to src/ext/lib/video-data/PlayerData.ts
index 3c5fda5..e289a40 100644
--- a/src/ext/lib/video-data/PlayerData.js
+++ b/src/ext/lib/video-data/PlayerData.ts
@@ -4,8 +4,11 @@ import AspectRatio from '../../../common/enums/aspect-ratio.enum';
 import PlayerNotificationUi from '../uwui/PlayerNotificationUI';
 import PlayerUi from '../uwui/PlayerUI';
 import BrowserDetect from '../../conf/BrowserDetect';
-import _ from 'lodash';
+import * as _ from 'lodash';
 import { sleep } from '../../../common/js/utils';
+import VideoData from './VideoData';
+import Settings from '../Settings';
+import Logger from '../Logger';
 
 if (process.env.CHANNEL !== 'stable'){
   console.info("Loading: PlayerData.js");
@@ -40,6 +43,31 @@ if (process.env.CHANNEL !== 'stable'){
 
 class PlayerData {
   
+  //#region helper objects
+  logger: Logger;
+  videoData: VideoData;
+  settings: Settings;
+  notificationService: PlayerNotificationUi;
+  //#endregion
+
+  //#region HTML objects
+  video: any;
+  element: any;
+  overlayNode: any;
+  //#endregion
+
+  //#region flags
+  invalid: boolean = false;
+  private periodicallyRefreshPlayerElement: boolean = false;
+  halted: boolean = true;
+
+  //#region misc stuff
+  extensionMode: any;
+  dimensions: any;
+  private playerIdElement: any;
+  private observer: MutationObserver;
+  //#endregion
+
   constructor(videoData) {
     try {
       this.logger = videoData.logger;
@@ -84,7 +112,7 @@ class PlayerData {
   }
 
   
-  onPlayerDimensionsChanged(mutationList, observer) {
+  onPlayerDimensionsChanged(mutationList?, observer?) {
     if (this?.checkPlayerSizeChange()) {
       this.videoData.resizer.restore();
     }
diff --git a/src/ext/lib/video-data/VideoData.js b/src/ext/lib/video-data/VideoData.ts
similarity index 95%
rename from src/ext/lib/video-data/VideoData.js
rename to src/ext/lib/video-data/VideoData.ts
index 9454a08..36664a1 100644
--- a/src/ext/lib/video-data/VideoData.js
+++ b/src/ext/lib/video-data/VideoData.ts
@@ -3,11 +3,43 @@ import PlayerData from './PlayerData';
 import Resizer from '../video-transform/Resizer';
 import ArDetector from '../ar-detect/ArDetector';
 import AspectRatio from '../../../common/enums/aspect-ratio.enum';
-import _ from 'lodash';
+import * as _ from 'lodash';
 import BrowserDetect from '../../conf/BrowserDetect';
+import Logger from '../Logger';
+import Settings from '../Settings';
+import PageInfo from './PageInfo';
+import { sleep } from '../../../common/js/utils';
 
 class VideoData {
-  
+  //#region flags
+  arSetupComplete: boolean = false;
+  destroyed: boolean = false;
+  invalid: boolean = false;
+  videoStatusOk: boolean = false;
+  videoLoaded: boolean = false;
+  videoDimensionsLoaded: boolean = false;
+  paused: boolean = false;
+  //#endregion
+
+  //#region misc stuff
+  vdid: string;
+  video: any;
+  observer: MutationObserver;
+  extensionMode: any;
+  userCssClassName: string;
+  validationId: number;
+  dimensions: any;
+  //#endregion
+
+  //#region helper objects
+  logger: Logger;
+  settings: Settings;
+  pageInfo: PageInfo;
+  player: PlayerData;
+  resizer: Resizer;
+  arDetector: ArDetector;
+  //#endregion
+
 
   constructor(video, settings, pageInfo){
     this.vdid = (Math.random()*100).toFixed();
@@ -267,7 +299,8 @@ class VideoData {
     if (this.pageInfo.defaultCrop) {
       this.resizer.setAr(this.pageInfo.defaultCrop);
     } else {
-      this.resizer.reset();
+    console.log("RESETTING!")
+    this.resizer.reset();
 
       try {
         this.stopArDetection();
@@ -286,7 +319,7 @@ class VideoData {
     this.validationId = validationId;
 
     while (!this.destroyed && !this.invalid && this.validationId === validationId) {
-      await this.sleep(500);
+      await sleep(500);
       this.doPeriodicFallbackChangeDetectionCheck();
     }
   }
@@ -295,11 +328,6 @@ class VideoData {
     this.validateVideoOffsets();
   }
 
-  async sleep(timeout) {
-    return new Promise( (resolve) => setTimeout(() => resolve(), timeout));
-  }
-
-
   onVideoDimensionsChanged(mutationList, observer) {
     if (!mutationList || this.video === undefined) {  // something's wrong
       if (observer && this.video) {
@@ -391,7 +419,7 @@ class VideoData {
    * Gets the contents of the style attribute of the video element
    * in a form of an object.
    */
-  getVideoStyle() {
+  getVideoStyle(): any {
     // This will _always_ give us an array. Empty string gives an array
     // that contains one element. That element is an empty string.
     const styleArray = (this.video.getAttribute('style') || '').split(';');
@@ -502,7 +530,7 @@ class VideoData {
     }
     this.paused = false;
     try {
-      this.resizer.start();
+      // this.resizer.start();
       if (this.player) {
         this.player.start();
       }
diff --git a/src/ext/lib/video-transform/Resizer.js b/src/ext/lib/video-transform/Resizer.ts
similarity index 93%
rename from src/ext/lib/video-transform/Resizer.js
rename to src/ext/lib/video-transform/Resizer.ts
index 024b46e..c8679b4 100644
--- a/src/ext/lib/video-transform/Resizer.js
+++ b/src/ext/lib/video-transform/Resizer.ts
@@ -9,34 +9,59 @@ import VideoAlignment from '../../../common/enums/video-alignment.enum';
 import AspectRatio from '../../../common/enums/aspect-ratio.enum';
 import CropModePersistance from '../../../common/enums/crop-mode-persistence.enum';
 import { sleep } from '../Util';
+import Logger from '../Logger';
+import Settings from '../Settings';
+import VideoData from '../video-data/VideoData';
 
 if(Debug.debug) {
   console.log("Loading: Resizer.js");
 }
 
 class Resizer {
-  
+  //#region flags
+  canPan: boolean = false;
+  destroyed: boolean = false;
+  //#endregion
+
+  //#region helper objects
+  logger: Logger;
+  settings: Settings;
+  scaler: Scaler;
+  stretcher: Stretcher;
+  zoom: Zoom;
+  conf: VideoData;
+  //#endregion
+
+  //#region HTML elements
+  video: any;
+  //#endregion
+
+  //#region data
+  correctedVideoDimensions: any;
+  currentCss: any;
+  currentStyleString: string;
+  currentPlayerStyleString: any;
+  currentCssValidFor: any;
+  currentVideoSettings: any;
+  lastAr: {type: any, ratio?: number} = {type: AspectRatio.Initial};
+  resizerId: any;
+  videoAlignment: any;
+  userCss: string;
+  userCssClassName: any;
+  pan: any = null;
+  //#endregion
+
   constructor(videoData) {
-    this.resizerId = (Math.random(99)*100).toFixed(0);
+    this.resizerId = (Math.random()*100).toFixed(0);
     this.conf = videoData;
     this.logger = videoData.logger;
     this.video = videoData.video;
     this.settings = videoData.settings;
-    this.extensionMode = videoData.extensionMode;
-
 
     this.scaler = new Scaler(this.conf);
     this.stretcher = new Stretcher(this.conf); 
     this.zoom = new Zoom(this.conf);
 
-    // load up default values
-    this.correctedVideoDimensions = {};
-    this.currentCss = {};
-    this.currentStyleString = "";
-    this.currentPlayerStyleString = "";
-    this.currentCssValidFor = {};
-
-    this.lastAr = {type: AspectRatio.Initial};
     this.videoAlignment = this.settings.getDefaultVideoAlignment(window.location.hostname); // this is initial video alignment
     this.destroyed = false;
 
@@ -47,7 +72,6 @@ class Resizer {
       this.canPan = false;
     }
 
-    this.userCss = '';
     this.userCssClassName = videoData.userCssClassName; 
   }
   
@@ -140,7 +164,7 @@ class Resizer {
     }
   }
 
-  async setAr(ar, lastAr) {
+  async setAr(ar: {type: any, ratio?: number}, lastAr?: {type: any, ratio?: number}) {
     if (this.destroyed) {
       return;
     }
@@ -157,6 +181,7 @@ class Resizer {
     }
 
     const siteSettings = this.settings.active.sites[window.location.hostname];
+    let stretchFactors: {xFactor: number, yFactor: number, arCorrectionFactor?: number, ratio?: number} | any;
 
     // reset zoom, but only on aspect ratio switch. We also know that aspect ratio gets converted to
     // AspectRatio.Fixed when zooming, so let's keep that in mind
@@ -224,7 +249,7 @@ class Resizer {
         || this.stretcher.mode === Stretch.Conditional 
         || this.stretcher.mode === Stretch.FixedSource){
      
-      var stretchFactors = this.scaler.calculateCrop(ar);
+      stretchFactors = this.scaler.calculateCrop(ar);
 
       if(! stretchFactors || stretchFactors.error){
         this.logger.log('error', 'debug', `[Resizer::setAr] <rid:${this.resizerId}> failed to set AR due to problem with calculating crop. Error:`, stretchFactors?.error);
@@ -255,15 +280,15 @@ class Resizer {
       );
 
     } else if (this.stretcher.mode === Stretch.Hybrid) {
-      var stretchFactors = this.stretcher.calculateStretch(ar.ratio);
+      stretchFactors = this.stretcher.calculateStretch(ar.ratio);
       this.logger.log('info', 'debug', '[Resizer::setAr] Processed stretch factors for hybrid stretch/crop. Stretch factors are:', stretchFactors);
     } else if (this.stretcher.mode === Stretch.Fixed) {
-      var stretchFactors = this.stretchFactors.calculateStretchFixed(ar.ratio)
+      stretchFactors = this.stretcher.calculateStretchFixed(ar.ratio)
     } else if (this.stretcher.mode === Stretch.Basic) {
-      var stretchFactors = this.stretcher.calculateBasicStretch();
+      stretchFactors = this.stretcher.calculateBasicStretch();
       this.logger.log('info', 'debug', '[Resizer::setAr] Processed stretch factors for basic stretch. Stretch factors are:', stretchFactors);
     } else {
-      var stretchFactors = {xFactor: 1, yFactor: 1};
+      stretchFactors = {xFactor: 1, yFactor: 1};
       this.logger.log('error', 'debug', '[Resizer::setAr] Okay wtf happened? If you see this, something has gone wrong', stretchFactors,"\n------[ i n f o   d u m p ]------\nstretcher:", this.stretcher);
     }
 
@@ -272,6 +297,10 @@ class Resizer {
     this.stretcher.chromeBugMitigation(stretchFactors);
 
     var translate = this.computeOffsets(stretchFactors);
+
+
+    console.log("aspect ratio will be set. stretch factors:", stretchFactors, "translate:", translate);
+
     this.applyCss(stretchFactors, translate);
   }
 
@@ -279,7 +308,7 @@ class Resizer {
   toFixedAr() {
     // converting to fixed AR means we also turn off autoAR
     this.setAr({
-      ar: this.lastAr.ar,
+      ratio: this.lastAr.ratio,
       type: AspectRatio.Fixed
     });
   }
@@ -296,7 +325,7 @@ class Resizer {
     return this.lastAr;
   }
 
-  setStretchMode(stretchMode, fixedStretchRatio){
+  setStretchMode(stretchMode, fixedStretchRatio?){
     this.stretcher.setStretchMode(stretchMode, fixedStretchRatio);
     this.restore();
   }
@@ -326,7 +355,7 @@ class Resizer {
   }
 
   resetPan() {
-    this.pan = {};
+    this.pan = {x: 0, y: 0};
     this.videoAlignment = this.settings.getDefaultVideoAlignment(window.location.hostname);
   }
 
@@ -334,7 +363,7 @@ class Resizer {
     // relativeMousePos[X|Y] - on scale from 0 to 1, how close is the mouse to player edges. 
     // use these values: top, left: 0, bottom, right: 1
     if(! this.pan){
-      this.pan = {};
+      this.pan = {x: 0, y: 0};
     }
 
     if (this.settings.active.miscSettings.mousePanReverseMouse) {
@@ -386,10 +415,6 @@ class Resizer {
     }
   }
 
-  resetPan(){
-    this.pan = undefined;
-  }
-
   setZoom(zoomLevel, no_announce) {
     this.zoom.setZoom(zoomLevel, no_announce);
   }
@@ -489,7 +514,7 @@ class Resizer {
     const hdiff = this.conf.player.dimensions.height - realVideoHeight;
 
     if (wdiff < 0 && hdiff < 0 && this.zoom.scale > 1) {
-      this.conf.player.restore();
+      this.conf.resizer.restore();
     }
 
     const wdiffAfterZoom = realVideoWidth * stretchFactors.xFactor - this.conf.player.dimensions.width;
@@ -503,7 +528,7 @@ class Resizer {
     
     
 
-    if (this.pan) {
+    if (this.pan.relativeOffsetX || this.pan.relativeOffsetY) {
       // don't offset when video is smaller than player
       if(wdiffAfterZoom >= 0 || hdiffAfterZoom >= 0) {
         translate.x += wdiffAfterZoom * this.pan.relativeOffsetX * this.zoom.scale;
@@ -518,7 +543,7 @@ class Resizer {
       }
     }
   
-    this.logger.log('info', ['debug', 'resizer'], "[Resizer::_res_computeOffsets] <rid:"+this.resizerId+"> calculated offsets:\n\n",
+    console.log('info', ['debug', 'resizer'], "[Resizer::_res_computeOffsets] <rid:"+this.resizerId+"> calculated offsets:\n\n",
                     '---- data in ----',
                     '\nplayer dimensions:    ', {w: this.conf.player.dimensions.width, h: this.conf.player.dimensions.height},
                     '\nvideo dimensions:     ', {w: this.conf.video.offsetWidth, h: this.conf.video.offsetHeight},
diff --git a/src/ext/lib/video-transform/Stretcher.js b/src/ext/lib/video-transform/Stretcher.ts
similarity index 96%
rename from src/ext/lib/video-transform/Stretcher.js
rename to src/ext/lib/video-transform/Stretcher.ts
index 559dff8..50ca385 100644
--- a/src/ext/lib/video-transform/Stretcher.js
+++ b/src/ext/lib/video-transform/Stretcher.ts
@@ -1,6 +1,9 @@
 import Stretch from '../../../common/enums/stretch.enum';
 import BrowserDetect from '../../conf/BrowserDetect';
 import AspectRatio from '../../../common/enums/aspect-ratio.enum';
+import VideoData from '../video-data/VideoData';
+import Logger from '../Logger';
+import Settings from '../Settings';
 
 // računa vrednosti za transform-scale (x, y)
 // transform: scale(x,y) se uporablja za raztegovanje videa, ne pa za približevanje
@@ -8,8 +11,20 @@ import AspectRatio from '../../../common/enums/aspect-ratio.enum';
 // transform: scale(x,y) is used for stretching, not zooming. 
 
 class Stretcher {
-  // internal variables
+  //#region flags
 
+  //#endregion
+
+  //#region helper objects
+  conf: VideoData;
+  logger: Logger;
+  settings: Settings;
+  //#endregion
+
+  //#region misc data
+  mode: any;
+  fixedStretchRatio: any;
+  //#endregion
 
   // functions
   constructor(videoData) {
@@ -20,7 +35,7 @@ class Stretcher {
     this.fixedStretchRatio = undefined;
   }
 
-  setStretchMode(stretchMode, fixedStretchRatio) {
+  setStretchMode(stretchMode, fixedStretchRatio?) {
     if (stretchMode === Stretch.Default) {
       this.mode = this.settings.getDefaultStretchMode(window.location.hostname);
     } else {
@@ -145,7 +160,7 @@ squeezeFactor:          ${squeezeFactor}`, '\nvideo', this.conf.video);
     return arCorrectionFactor;
   }
 
-   calculateStretch(actualAr, playerArOverride) {
+   calculateStretch(actualAr, playerArOverride?) {
     const playerAr = playerArOverride || this.conf.player.dimensions.width / this.conf.player.dimensions.height;
     const streamAr = this.conf.video.videoWidth / this.conf.video.videoHeight;
 
@@ -153,7 +168,7 @@ squeezeFactor:          ${squeezeFactor}`, '\nvideo', this.conf.video);
       actualAr = playerAr;
     }
 
-    var stretchFactors = {
+    var stretchFactors: any = {
       xFactor: 1,
       yFactor: 1
     };
diff --git a/src/ext/lib/video-transform/Zoom.js b/src/ext/lib/video-transform/Zoom.ts
similarity index 78%
rename from src/ext/lib/video-transform/Zoom.js
rename to src/ext/lib/video-transform/Zoom.ts
index b95bb1e..ce21642 100644
--- a/src/ext/lib/video-transform/Zoom.js
+++ b/src/ext/lib/video-transform/Zoom.ts
@@ -1,19 +1,32 @@
 import Debug from '../../conf/Debug';
+import Logger from '../Logger';
+import VideoData from '../video-data/VideoData';
 
 // računa približevanje ter računa/popravlja odmike videa
 // calculates zooming and video offsets/panning
 
 class Zoom {
-  // functions
+  //#region flags
+
+  //#endregion
+
+  //#region helper objects
+  conf: VideoData;
+  logger: Logger;
+  //#endregion
+
+  //#region misc data
+  scale: number = 1;
+  logScale: number = 0;
+  scaleStep: number = 0.1; 
+  minScale: number = -1;    // 50% (log2(0.5) = -1)
+  maxScale: number = 3;     // 800% (log2(8) = 3)
+  //#endregion
+
+
   constructor(videoData) {
     this.conf = videoData;
     this.logger = videoData.logger;
-
-    this.scale = 1;
-    this.logScale = 0;
-    this.scaleStep = 0.1;
-    this.minScale = -1;  // 50% (log2(0.5) = -1)
-    this.maxScale = 3;   // 800% (log2(8) = 3)
   }
 
   reset(){
@@ -41,7 +54,7 @@ class Zoom {
     this.conf.announceZoom(this.scale);
   }
 
-  setZoom(scale, no_announce){
+  setZoom(scale: number, no_announce?){
     this.logger.log('info', 'debug', "[Zoom::setZoom] Setting zoom to", scale, "!");
 
     // NOTE: SCALE IS NOT LOGARITHMIC