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


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

import { Command, type CommandResult } from "@/lib/commands/base-command";
import type { SceneTracks } from "@/lib/timeline";
import { EditorCore } from "@/core";
import { canTrackHaveAudio, findTrackInSceneTracks, updateTrackInSceneTracks } from "@/lib/timeline";

export class ToggleTrackMuteCommand extends Command {
	private savedState: SceneTracks | null = null;

	constructor(private trackId: string) {
		super();
	}

	execute(): CommandResult | undefined {
		const editor = EditorCore.getInstance();
		this.savedState = editor.scenes.getActiveScene().tracks;

		const targetTrack = findTrackInSceneTracks({
			tracks: this.savedState,
			trackId: this.trackId,
		});
		if (!targetTrack) {
			return;
		}

		const updatedTracks = updateTrackInSceneTracks({
			tracks: this.savedState,
			trackId: this.trackId,
			update: (track) =>
				canTrackHaveAudio(track) ? { ...track, muted: !track.muted } : track,
		});

		editor.timeline.updateTracks(updatedTracks);
	}

	undo(): void {
		if (this.savedState) {
			const editor = EditorCore.getInstance();
			editor.timeline.updateTracks(this.savedState);
		}
	}
}