fixed tests

public/js/services/MediaHandler.ts

@@ -0,0 +1,55 @@
+import type { IMediaHandler } from '../interfaces/IWebRTCClient.ts';
+
+export class MediaHandler implements IMediaHandler {
+  private localStream: MediaStream | null = null;
+  private videoElement: HTMLVideoElement | null = null;
+
+  constructor(videoElementId?: string) {
+    if (videoElementId) {
+      this.videoElement = document.getElementById(videoElementId) as HTMLVideoElement;
+    }
+  }
+
+  async getLocalStream(): Promise<MediaStream> {
+    try {
+      this.localStream = await navigator.mediaDevices.getUserMedia({
+        video: {
+          width: { ideal: 1280 },
+          height: { ideal: 720 },
+          frameRate: { ideal: 30 }
+        },
+        audio: true
+      });
+
+      if (this.videoElement) {
+        this.videoElement.srcObject = this.localStream;
+      }
+
+      return this.localStream;
+    } catch (error) {
+      console.error('Error accessing media devices:', error);
+      throw error;
+    }
+  }
+
+  stopLocalStream(): void {
+    if (this.localStream) {
+      this.localStream.getTracks().forEach(track => {
+        track.stop();
+      });
+      this.localStream = null;
+    }
+
+    if (this.videoElement) {
+      this.videoElement.srcObject = null;
+    }
+  }
+
+  getLocalVideo(): HTMLVideoElement | null {
+    return this.videoElement;
+  }
+
+  getCurrentStream(): MediaStream | null {
+    return this.localStream;
+  }
+}