chore: Enforce a few house rules via eslint (#2539)

src/components/image-updating-player.ts

@@ -112,7 +112,7 @@ export class AdvancedCameraCardImageUpdatingPlayer
     () => dispatchMediaPlayEvent(this),
     () => dispatchMediaPauseEvent(this),
     // Clear image load errors on each timer tick so the next render retries
-    // the <img> — but only for modes where the underlying URL genuinely
+    // the <img> -- but only for modes where the underlying URL genuinely
     // changes between ticks (camera/entity snapshots). For mode: url, the
     // same static URL will fail the same way every time, so clearing the
     // error just causes a visible flicker (notification → blank <img> →

src/components/live/carousel.ts

@@ -233,7 +233,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
 
   private _setViewCameraID(cameraID?: string | null): void {
     if (cameraID) {
-      this.viewManagerEpoch?.manager.setViewByParametersWithNewQuery({
+      void this.viewManagerEpoch?.manager.setViewByParametersWithNewQuery({
         params: {
           camera: cameraID,
         },
@@ -319,9 +319,9 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
     const controller = this._mediaLoadedInfoSinkController.get()?.mediaPlayerController;
     // Fire-and-forget; the `volumechange` event drives the re-render.
     if (controller?.isMuted()) {
-      controller.unmute();
+      void controller.unmute();
     } else {
-      controller?.mute();
+      void controller?.mute();
     }
   }
 
@@ -478,7 +478,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
     const selectedCameraIndex = this._getSelectedCameraIndex();
 
     if (this.viewFilterCameraID) {
-      this._mediaActionsController.setTarget(
+      void this._mediaActionsController.setTarget(
         selectedCameraIndex,
         // Camera in this carousel is only selected if the camera from the
         // view matches the filtered camera.
@@ -486,7 +486,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
       );
     } else {
       // Carousel is not filtered, so the targeted camera is always selected.
-      this._mediaActionsController.setTarget(selectedCameraIndex, true);
+      void this._mediaActionsController.setTarget(selectedCameraIndex, true);
     }
 
     this._mediaHeightController.setSelected(selectedCameraIndex);

src/components/live/grid.ts

@@ -103,7 +103,7 @@ export class AdvancedCameraCardLiveGrid extends LitElement {
 
   protected willUpdate(changedProps: PropertyValues): void {
     if (changedProps.has('viewManagerEpoch') && this._needsGrid()) {
-      import('../media-grid.js');
+      void import('../media-grid.js');
     }
   }
 

src/components/live/index.ts

@@ -81,7 +81,7 @@ export class AdvancedCameraCardLive extends LitElement {
       // from a hidden live view. Treat the live view as having no selected
       // camera unless it is the active view.
       const view = this.viewManagerEpoch?.manager.getView();
-      this._microphoneActionsController.setSelectedCamera(
+      void this._microphoneActionsController.setSelectedCamera(
         view?.is('live') ? view.camera ?? null : null,
       );
     }

src/components/live/providers/go2rtc/index.ts

@@ -140,7 +140,7 @@ export class AdvancedCameraCardGo2RTC extends LitElement implements MediaPlayer
       // VideoRTC owns the transition: it updates microphoneStream, swaps the
       // track on the pre-armed transceiver, and validates against stale async
       // completions before any reconnect fallback. Fire-and-forget is fine.
-      /* async */ this._player.setMicrophoneStream(this.microphoneStream ?? null);
+      void this._player.setMicrophoneStream(this.microphoneStream ?? null);
     }
   }
 

src/components/live/providers/go2rtc/video-rtc.js

@@ -271,7 +271,7 @@ export class VideoRTC extends HTMLElement {
   /**
    * Owns the microphone stream transition end-to-end: updates the property,
    * extracts the outbound audio track, and swaps it onto the pre-armed audio
-   * transceiver via `replaceTrack` — no SDP renegotiation, no visible reload.
+   * transceiver via `replaceTrack` -- no SDP renegotiation, no visible reload.
    *
    * Falls back to a full reconnect if `replaceTrack` rejects, but only when
    * the rejection still describes the current desired state. The transceiver
@@ -410,8 +410,8 @@ export class VideoRTC extends HTMLElement {
    */
   disconnectedCallback() {
     // Synchronous manager-side cleanup by aborting the load's signal. The
-    // signal's abort listeners — registered by the card-root listener and
-    // any sinks in the bubble path — fire even though `parentNode` is
+    // signal's abort listeners -- registered by the card-root listener and
+    // any sinks in the bubble path -- fire even though `parentNode` is
     // already null, because abort is plain JS, not DOM-event-bound.
     this._abortController?.abort();
     this._abortController = null;
@@ -833,7 +833,7 @@ export class VideoRTC extends HTMLElement {
     // Always pre-arm a single outbound audio transceiver so the SDP advertises
     // the slot from the start. With the slot in place, the mic track can be
     // attached/detached later via `setMicrophoneStream` (replaceTrack) without
-    // renegotiating — avoiding a visible reload of this cell each time grid
+    // renegotiating -- avoiding a visible reload of this cell each time grid
     // selection moves the mic between cameras.
     //
     // Pure SDP allocation: the kind-only `addTransceiver('audio', ...)` form

src/components/live/providers/webrtc-card.ts

@@ -200,7 +200,7 @@ export class AdvancedCameraCardLiveWebRTCCard extends LitElement implements Medi
   public updated(): void {
     // Extract the video component after it has been rendered and generate the
     // media load event.
-    this.updateComplete.then(() => {
+    void this.updateComplete.then(() => {
       this._videoRTC = this.renderRoot?.querySelector('#webrtc') ?? null;
       const video = this._getVideo();
       if (video) {

src/components/loading.ts

@@ -60,7 +60,7 @@ export class AdvancedCameraCardLoading extends LitElement {
   }
 
   private _startEffect(effect: EffectName): void {
-    this.effectsManager?.startEffect(effect, { fadeIn: false });
+    void this.effectsManager?.startEffect(effect, { fadeIn: false });
     this._effectName = effect;
   }
 

src/components/media-filter.ts

@@ -76,7 +76,7 @@ class AdvancedCameraCardMediaFilter extends ScopedRegistryHost(LitElement) {
         this.cameraManager,
         this.foldersManager,
       );
-      this._mediaFilterController.computeMetadataOptions(this.cameraManager);
+      void this._mediaFilterController.computeMetadataOptions(this.cameraManager);
     }
 
     // The first time the viewManager is set, compute the initial default selections.

src/components/submenu/select-button.ts

@@ -87,7 +87,7 @@ export class AdvancedCameraCardSubmenuSelectButton extends LitElement {
     }
 
     if (!this._optionTitles) {
-      this._refreshOptionTitles();
+      void this._refreshOptionTitles();
     }
 
     const entityID = this.submenuSelect.entity;

src/components/surround.ts

@@ -66,7 +66,7 @@ export class AdvancedCameraCardSurround extends LitElement {
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
   protected willUpdate(_changedProperties: PropertyValues): void {
     if (this.timelineConfig?.mode && this.timelineConfig.mode !== 'none') {
-      import('./timeline-core.js');
+      void import('./timeline-core.js');
     }
   }
 

src/components/thumbnail/feature/thumbnail.ts

@@ -62,7 +62,7 @@ export class AdvancedCameraCardThumbnailFeatureThumbnail extends LitElement {
       this._embedThumbnailTask?.status === TaskStatus.INITIAL &&
       entries.some((entry) => entry.isIntersecting)
     ) {
-      this._embedThumbnailTask?.run();
+      void this._embedThumbnailTask?.run();
     }
   }
 

src/components/timeline-core.ts

@@ -277,7 +277,7 @@ export class AdvancedCameraCardTimelineCore extends LitElement {
         this._controller.setView(this.viewManagerEpoch ?? null),
       );
     } else {
-      this._controller.setView(this.viewManagerEpoch ?? null);
+      void this._controller.setView(this.viewManagerEpoch ?? null);
     }
   }
 

src/components/viewer/carousel.ts

@@ -93,7 +93,7 @@ export class AdvancedCameraCardViewerCarousel extends LitElement {
       (this._selected !== null && this._media?.[this._selected]?.getID()) || null,
     callback: () => {
       this._mediaHeightController.recalculate();
-      this._seekHandler();
+      void this._seekHandler();
     },
   });
 
@@ -388,7 +388,7 @@ export class AdvancedCameraCardViewerCarousel extends LitElement {
           ?.context?.mediaViewer?.seek?.getTime() !==
         this.viewManagerEpoch?.oldView?.context?.mediaViewer?.seek?.getTime()
       ) {
-        this._seekHandler();
+        void this._seekHandler();
       }
     }
   }
@@ -397,7 +397,7 @@ export class AdvancedCameraCardViewerCarousel extends LitElement {
     if (!this._media?.length || this._selected === null) {
       this._mediaActionsController.unsetTarget();
     } else {
-      this._mediaActionsController.setTarget(
+      void this._mediaActionsController.setTarget(
         this._selected,
         // Camera in this carousel is only selected if the camera from the view
         // matches the filtered camera.
@@ -438,16 +438,16 @@ export class AdvancedCameraCardViewerCarousel extends LitElement {
     const seekTimeInMedia = selectedMedia.includesTime(seek);
     this.toggleAttribute('unseekable', !seekTimeInMedia);
     if (!seekTimeInMedia && !mediaPlayerController.isPaused()) {
-      mediaPlayerController.pause();
+      void mediaPlayerController.pause();
     } else if (seekTimeInMedia && mediaPlayerController.isPaused()) {
-      mediaPlayerController.play();
+      void mediaPlayerController.play();
     }
 
     const seekTime =
       (await this.cameraManager?.getMediaSeekTime(selectedMedia, seek)) ?? null;
 
     if (seekTime !== null) {
-      mediaPlayerController.seek(seekTime);
+      void mediaPlayerController.seek(seekTime);
     }
   }
 

src/components/viewer/grid.ts

@@ -72,7 +72,7 @@ export class AdvancedCameraCardViewerGrid extends LitElement {
 
   protected willUpdate(changedProps: PropertyValues): void {
     if (changedProps.has('viewManagerEpoch') && this._needsGrid()) {
-      import('../media-grid.js');
+      void import('../media-grid.js');
     }
   }
 

src/components/viewer/provider.ts

@@ -157,11 +157,11 @@ export class AdvancedCameraCardViewerProvider extends LitElement implements Medi
       changedProps.has('resolvedMediaCache') ||
       changedProps.has('hass')
     ) {
-      this._resolveURL();
+      void this._resolveURL();
     }
 
     if (changedProps.has('viewerConfig') && this.viewerConfig?.zoomable) {
-      import('../zoomer.js');
+      void import('../zoomer.js');
     }
   }
 
@@ -290,7 +290,7 @@ export class AdvancedCameraCardViewerProvider extends LitElement implements Medi
             .targetID=${mediaID}
             @click=${() => {
               if (this.viewerConfig?.snapshot_click_plays_clip) {
-                this._switchToRelatedClipView();
+                void this._switchToRelatedClipView();
               }
             }}
           ></advanced-camera-card-image-player>`}

src/components/views.ts

@@ -90,16 +90,16 @@ export class AdvancedCameraCardViews extends LitElement {
     if (changedProps.has('viewManagerEpoch') || changedProps.has('config')) {
       const view = this.viewManagerEpoch?.manager.getView();
       if (view?.is('live') || this._shouldLivePreload()) {
-        import('./live/index.js');
+        void import('./live/index.js');
       }
       if (view?.isGalleryView()) {
-        import('./gallery/gallery.js');
+        void import('./gallery/gallery.js');
       } else if (view?.isViewerView()) {
-        import('./viewer/index.js');
+        void import('./viewer/index.js');
       } else if (view?.is('image')) {
-        import('./image.js');
+        void import('./image.js');
       } else if (view?.is('timeline')) {
-        import('./timeline.js');
+        void import('./timeline.js');
       }
     }