bugfix

src/app/components/test-suite/assessments/demographics-feedback/demographics-feedback.component.ts

@@ -125,6 +125,6 @@ export class DemographicsFeedbackComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy() {
-    this.metricsService.cleanup();
+    this.metricsService.fullCleanup();
   }
 }

src/app/components/test-suite/assessments/spatial-position-assessment/spatial-position-assessment.component.ts

@@ -23,8 +23,8 @@ import '../../../../../assets/scripts/model-viewer';
   styleUrls: ['./spatial-position-assessment.component.css'],
   schemas: [CUSTOM_ELEMENTS_SCHEMA]
 })
-export class SpatialPositionAssessmentComponent implements AfterViewInit, OnDestroy { 
+export class SpatialPositionAssessmentComponent implements AfterViewInit { 
-  
+
   @ViewChild('modelViewer') modelViewerRef!: ElementRef<any>;
   @Output() testComplete = new EventEmitter<void>();
   @Output() redoTest = new EventEmitter<number>();
@@ -105,7 +105,4 @@ export class SpatialPositionAssessmentComponent implements AfterViewInit, OnDest
     this.redoTest.emit(1);
   }
 
-  ngOnDestroy() {
-    this.metricsService.cleanup();
-  }
 }

src/app/components/test-suite/assessments/spatial-stability-assessment/spatial-stability-assessment.component.ts

@@ -166,6 +166,5 @@ export class SpatialStabilityAssessmentComponent implements AfterViewInit, OnDes
     if (this.countdownInterval) {
       clearInterval(this.countdownInterval);
     }
-    this.metricsService.cleanup();
   }
 }

src/app/components/test-suite/assessments/text-legibility-assessment/text-legibility-assessment.component.ts

@@ -23,7 +23,7 @@ import '../../../../../assets/scripts/model-viewer';
   styleUrls: ['./text-legibility-assessment.component.css'],
   schemas: [CUSTOM_ELEMENTS_SCHEMA]
 })
-export class TextLegibilityAssessmentComponent implements AfterViewInit, OnDestroy {
+export class TextLegibilityAssessmentComponent implements AfterViewInit {
   @ViewChild('modelViewer') modelViewerRef!: ElementRef<any>;
   @Output() testComplete = new EventEmitter<void>();
   @Output() redoTest = new EventEmitter<number>();
@@ -127,8 +127,4 @@ export class TextLegibilityAssessmentComponent implements AfterViewInit, OnDestr
     this.testComplete.emit();
   }
 
-
-  ngOnDestroy() {
-    this.metricsService.cleanup();
-  }
 }

src/app/services/metrics-tracker.service.ts

@@ -3,7 +3,7 @@ import { inject, Injectable } from '@angular/core';
 import { interval, Subscription, tap } from 'rxjs';
 import { v4 as uuidv4 } from 'uuid';
 
-// --- Data Interfaces ---
+// --- Data Interfaces (Unchanged) ---
 export interface InteractionEvent {
     timestamp: number;
     type: string;
@@ -70,13 +70,16 @@ export class MetricsTrackerService {
             localStorage.setItem('device-uuid', this.deviceId);
         }
         console.log('Device ID for this session:', this.deviceId);
+
+        if (typeof window !== 'undefined') {
+            window.addEventListener('deviceorientation', this.handleDeviceOrientation, true);
+        }
     }
 
     private handleDeviceOrientation(event: DeviceOrientationEvent): void {
         this.lastDeviceOrientation = event;
     }
 
-
     public logInteraction(event: Event): void {
         if (event.target) {
             const target = event.target as HTMLElement;
@@ -100,14 +103,11 @@ export class MetricsTrackerService {
             console.warn("logInteraction called with an unknown event type:", event);
         }
     }
-    
+
     public startTracking(modelViewerElement: any): void {
         if (this.trackingSubscription || !modelViewerElement) return;
 
-        if (typeof window !== 'undefined') {
+        console.log("Starting periodic metrics tracking...");
-            window.addEventListener('deviceorientation', this.handleDeviceOrientation);
-        }
-
         this.trackingSubscription = interval(500).subscribe(() => {
             if (!modelViewerElement.arActive) {
                 return;
@@ -115,6 +115,7 @@ export class MetricsTrackerService {
 
             const timestamp = Date.now();
 
+            // Capture AR Data
             const anchor = modelViewerElement.getAnchor ? modelViewerElement.getAnchor() : 'getAnchor not available';
             const orbit = modelViewerElement.getCameraOrbit ? modelViewerElement.getCameraOrbit() : null;
             const target = modelViewerElement.getCameraTarget ? modelViewerElement.getCameraTarget() : null;
@@ -147,6 +148,7 @@ export class MetricsTrackerService {
             ...(formData && { formData })
         };
         console.log("Sending final payload:", payload);
+        this.stopTracking();
         return this.http.post(this.serverUrl, payload).pipe(
             tap({
                 next: (response) => {
@@ -158,16 +160,22 @@ export class MetricsTrackerService {
         );
     }
 
-    public cleanup(): void {
+    public stopTracking(): void {
-        if (typeof window !== 'undefined') {
+        console.log("Stopping periodic metrics tracking.");
-            window.removeEventListener('deviceorientation', this.handleDeviceOrientation);
-        }
         this.trackingSubscription?.unsubscribe();
         this.trackingSubscription = null;
-        this.lastDeviceOrientation = null;
     }
 
     public resetMetrics(): void {
         this.metricsLog = { interactions: [], deviceOrientations: [], arData: [] };
     }
+
+    public fullCleanup(): void {
+        console.log("Performing full cleanup of MetricsTrackerService.");
+        this.stopTracking();
+        if (typeof window !== 'undefined') {
+            window.removeEventListener('deviceorientation', this.handleDeviceOrientation, true);
+        }
+        this.lastDeviceOrientation = null;
+    }
 }