import { getGlobalThis } from '../web/getGlobalThis';

const globalThis = getGlobalThis();

/**
 * transferable object pass between workers, can work with structuredClone
 *
 * - Chrome 87, FF 103, Safari X, NodeJS X
 *
 * @see {@link https://developer.mozilla.org/en-US/docs/Glossary/Transferable_objects | Transferable objects}
 */
export function isTransferable(v: any): v is TransferableObject {
	_ctors ||= ctors();
	return _ctors.some((ctor) => v instanceof ctor);
}

let _ctors: any[];

function ctors() {
	const o: any = globalThis.window || globalThis || global;
	return [
		o.ArrayBuffer,
		o.MessagePort,
		o.ReadableStream,
		o.WritableStream,
		o.TransformStream,
		o.AudioData,
		o.ImageBitmap,
		o.VideoFrame,
		o.OffscreenCanvas,
		o.RTCDataChannel,
	].filter(Boolean);
}

export type TransferableObject =
	| Transferable
	| ArrayBuffer
	| MessagePort
	| ReadableStream
	| WritableStream
	| TransformStream
	| AudioData
	| ImageBitmap
	| VideoFrame
	| OffscreenCanvas
	| RTCDataChannel;

declare global {
	interface OffscreenCanvas {}

	interface VideoFrame {}

	interface AudioData {}
}