Merge pull request #58 from diffusionstudio/konstantin/feat/transcript-subclips

Enhance Transcript functionality and Composition track removal

Author: k9p5

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@diffusionstudio/core",
   "private": false,
-  "version": "1.5.1",
+  "version": "1.6.0",
   "type": "module",
   "description": "Build bleeding edge video processing applications",
   "files": [

src/composition/composition.ts

@@ -268,6 +268,7 @@ export class Composition extends EventEmitterMixin<CompositionEvents, typeof Ser
 	public removeTracks(Track: new (composition: Composition) => Track<Clip>): Track<Clip>[] {
 		const removed = this.tracks.filter((track) => track instanceof Track);
 		this.tracks = this.tracks.filter((track) => !(track instanceof Track));
+		removed.forEach(track => this.removeTrack(track));
 
 		return removed;
 	}

src/models/transcript.spec.ts

@@ -306,4 +306,32 @@ is`
 
 		resetFetch();
 	});
+
+	it('should be able to create a deep copy of the transcript', () => {
+		const transcript = new Transcript([
+			new WordGroup([
+				new Word('Lorem', 0e3, 1e3),
+				new Word('Ipsum', 2e3, 3e3),
+			]),
+			new WordGroup([
+				new Word('is', 4e3, 5e3),
+				new Word('simply', 6e3, 7e3),
+			]),
+		]);
+
+		const copy = transcript.copy();
+
+		expect(copy.id).not.toBe(transcript.id);
+		expect(copy.groups.length).toBe(transcript.groups.length);
+		expect(copy.groups[0].words.length).toBe(transcript.groups[0].words.length);
+		expect(copy.groups[0].words[0].id).not.toBe(transcript.groups[0].words[0].id);
+
+		for (let i = 0; i < transcript.words.length; i++) {
+			expect(copy.words[i].text).toBe(transcript.words[i].text);
+		}
+
+		transcript.groups[0].words[0].text = 'Hello';
+
+		expect(copy.groups[0].words[0].text).not.toBe('Hello');
+	});
 });

src/models/transcript.ts

@@ -149,6 +149,14 @@ export class Transcript implements Serializer {
 		return new Transcript([new WordGroup(words)]);
 	}
 
+	/**
+	 * Create a deep copy of the transcript
+	 * @returns A new Transcript instance
+	 */
+	public copy(): Transcript {
+		return Transcript.fromJSON(this.toJSON());
+	}
+
 	public static fromJSON(data: Captions): Transcript {
 		const transcipt = new Transcript();
 

src/models/transcript.word.ts

@@ -8,6 +8,10 @@
 import { Timestamp } from './timestamp';
 
 export class Word {
+	/**
+	 * A unique identifier for the word
+	 */
+	public id = crypto.randomUUID();
 	/**
 	 * Defines the text to be displayed
 	 */