codebase overhaul (#697)

apps/web/src/lib/commands/timeline/track/toggle-track-mute.ts

@@ -0,0 +1,39 @@
+import { Command } from "@/lib/commands/base-command";
+import type { TimelineTrack } from "@/types/timeline";
+import { EditorCore } from "@/core";
+import { canTracktHaveAudio } from "@/lib/timeline";
+
+export class ToggleTrackMuteCommand extends Command {
+	private savedState: TimelineTrack[] | null = null;
+
+	constructor(private trackId: string) {
+		super();
+	}
+
+	execute(): void {
+		const editor = EditorCore.getInstance();
+		this.savedState = editor.timeline.getTracks();
+
+		const targetTrack = this.savedState.find(
+			(track) => track.id === this.trackId,
+		);
+		if (!targetTrack) {
+			return;
+		}
+
+		const updatedTracks = this.savedState.map((track) =>
+			track.id === this.trackId && canTracktHaveAudio(track)
+				? { ...track, muted: !track.muted }
+				: track,
+		);
+
+		editor.timeline.updateTracks(updatedTracks);
+	}
+
+	undo(): void {
+		if (this.savedState) {
+			const editor = EditorCore.getInstance();
+			editor.timeline.updateTracks(this.savedState);
+		}
+	}
+}