Batch caption text insertion

[Modified from eece3bbc5f0578a24a4f90f0ab87fe5ca37e94e9, 2026-03-28 09:13:18 -0400]

Batch caption insertion in a BatchCommand so that undo will batch undo all subtitle insertion from either srt file or ai transcriptions.

apps/web/src/lib/subtitles/insert.ts

@@ -1,6 +1,11 @@
 import type { EditorCore } from "@/core";
 import { DEFAULTS } from "@/lib/timeline/defaults";
 import type { CaptionChunk } from "@/lib/transcription/types";
+import {
+	AddTrackCommand,
+	BatchCommand,
+	InsertElementCommand,
+} from "@/lib/commands";
 
 export function insertCaptionChunksAsTextTrack({
 	editor,
@@ -13,26 +18,31 @@ export function insertCaptionChunksAsTextTrack({
 		return null;
 	}
 
-	const trackId = editor.timeline.addTrack({
-		type: "text",
-		index: 0,
-	});
+	const addTrackCommand = new AddTrackCommand("text", 0);
+	const trackId = addTrackCommand.getTrackId();
+	const commands = [addTrackCommand];
 
 	for (let i = 0; i < captions.length; i++) {
 		const caption = captions[i];
-		editor.timeline.insertElement({
-			placement: { mode: "explicit", trackId },
-			element: {
-				...DEFAULTS.text.element,
-				name: `Caption ${i + 1}`,
-				content: caption.text,
-				duration: caption.duration,
-				startTime: caption.startTime,
-				fontSize: 65,
-				fontWeight: "bold",
-			},
-		});
+		commands.push(
+			new InsertElementCommand({
+				placement: { mode: "explicit", trackId },
+				element: {
+					...DEFAULTS.text.element,
+					name: `Caption ${i + 1}`,
+					content: caption.text,
+					duration: caption.duration,
+					startTime: caption.startTime,
+					fontSize: 65,
+					fontWeight: "bold",
+				},
+			}),
+		);
 	}
 
+	editor.command.execute({
+		command: new BatchCommand(commands),
+	});
+
 	return trackId;
 }