Clear camera store when cameras are initialized.

src/camera-manager/engine-factory.ts

@@ -24,8 +24,8 @@ export class CameraManagerEngineFactory {
     this._resolvedMediaCache = resolvedMediaCache;
   }
 
-  public async createEngine(engine: Engine): Promise<CameraManagerEngine | null> {
-    let cameraManagerEngine: CameraManagerEngine | null = null;
+  public async createEngine(engine: Engine): Promise<CameraManagerEngine> {
+    let cameraManagerEngine: CameraManagerEngine;
     switch (engine) {
       case Engine.Generic:
         const { GenericCameraManagerEngine } = await import('./generic/engine-generic');

src/camera-manager/manager.ts

@@ -129,6 +129,8 @@ export class CameraManager {
       return;
     }
 
+    this._store.reset();
+
     // For each camera merge the config (which has no defaults) into the camera
     // global config (which does have defaults). The merging must happen in this
     // order, to ensure that the defaults in the cameras global config do not

src/camera-manager/store.ts

@@ -41,6 +41,13 @@ export class CameraManagerStore implements CameraManagerReadOnlyConfigStore {
     this._enginesByType.set(engine.getEngineType(), engine);
   }
 
+  public reset(): void {
+    this._allConfigs.clear();
+    this._visibleConfigs.clear();
+    this._enginesByCamera.clear();
+    this._enginesByType.clear();
+  }
+
   public getCameraConfig(cameraID: string): CameraConfig | null {
     return this._allConfigs.get(cameraID) ?? null;
   }
@@ -74,11 +81,7 @@ export class CameraManagerStore implements CameraManagerReadOnlyConfigStore {
   }
 
   public getCameraConfigForMedia(media: ViewMedia): CameraConfig | null {
-    const cameraID = media.getCameraID();
-    if (!cameraID) {
-      return null;
-    }
-    return this.getCameraConfig(cameraID);
+    return this.getCameraConfig(media.getCameraID());
   }
 
   public getEngineOfType(engine: Engine): CameraManagerEngine | null {
@@ -108,11 +111,7 @@ export class CameraManagerStore implements CameraManagerReadOnlyConfigStore {
   }
 
   public getEngineForMedia(media: ViewMedia): CameraManagerEngine | null {
-    const cameraID = media.getCameraID();
-    if (!cameraID) {
-      return null;
-    }
-    return this.getEngineForCameraID(cameraID);
+    return this.getEngineForCameraID(media.getCameraID());
   }
 
   public getAllEngines(): CameraManagerEngine[] {