refactor: update command execute methods to return CommandResult | undefined

1 files changed, 54 insertions, 53 deletions

diff --git a/apps/web/src/lib/commands/timeline/track/add-track.ts b/apps/web/src/lib/commands/timeline/track/add-track.ts
index 104c0462..29bdbb0a 100644
--- a/apps/web/src/lib/commands/timeline/track/add-track.ts
+++ b/apps/web/src/lib/commands/timeline/track/add-track.ts
@@ -1,53 +1,54 @@
-import { Command } from "@/lib/commands/base-command";

-import type { TrackType, TimelineTrack } from "@/lib/timeline";

-import { generateUUID } from "@/utils/id";

-import { EditorCore } from "@/core";

-import {

-	buildEmptyTrack,

-	getDefaultInsertIndexForTrack,

-} from "@/lib/timeline/placement";

-

-export class AddTrackCommand extends Command {

-	private trackId: string;

-	private savedState: TimelineTrack[] | null = null;

-

-	constructor(

-		private type: TrackType,

-		private index?: number,

-	) {

-		super();

-		this.trackId = generateUUID();

-	}

-

-	execute(): void {

-		const editor = EditorCore.getInstance();

-		this.savedState = editor.timeline.getTracks();

-

-		const newTrack: TimelineTrack = buildEmptyTrack({

-			id: this.trackId,

-			type: this.type,

-		});

-

-		const updatedTracks = [...(this.savedState || [])];

-		const insertIndex =

-			this.index ??

-			getDefaultInsertIndexForTrack({

-				tracks: updatedTracks,

-				trackType: this.type,

-			});

-		updatedTracks.splice(insertIndex, 0, newTrack);

-

-		editor.timeline.updateTracks(updatedTracks);

-	}

-

-	undo(): void {

-		if (this.savedState) {

-			const editor = EditorCore.getInstance();

-			editor.timeline.updateTracks(this.savedState);

-		}

-	}

-

-	getTrackId(): string {

-		return this.trackId;

-	}

-}

+import { Command, type CommandResult } from "@/lib/commands/base-command";
+import type { TrackType, TimelineTrack } from "@/lib/timeline";
+import { generateUUID } from "@/utils/id";
+import { EditorCore } from "@/core";
+import {
+	buildEmptyTrack,
+	getDefaultInsertIndexForTrack,
+} from "@/lib/timeline/placement";
+
+export class AddTrackCommand extends Command {
+	private trackId: string;
+	private savedState: TimelineTrack[] | null = null;
+
+	constructor(
+		private type: TrackType,
+		private index?: number,
+	) {
+		super();
+		this.trackId = generateUUID();
+	}
+
+	execute(): CommandResult | undefined {
+		const editor = EditorCore.getInstance();
+		this.savedState = editor.timeline.getTracks();
+
+		const newTrack: TimelineTrack = buildEmptyTrack({
+			id: this.trackId,
+			type: this.type,
+		});
+
+		const updatedTracks = [...(this.savedState || [])];
+		const insertIndex =
+			this.index ??
+			getDefaultInsertIndexForTrack({
+				tracks: updatedTracks,
+				trackType: this.type,
+			});
+		updatedTracks.splice(insertIndex, 0, newTrack);
+
+		editor.timeline.updateTracks(updatedTracks);
+		return undefined;
+	}
+
+	undo(): void {
+		if (this.savedState) {
+			const editor = EditorCore.getInstance();
+			editor.timeline.updateTracks(this.savedState);
+		}
+	}
+
+	getTrackId(): string {
+		return this.trackId;
+	}
+}