@terbiumos/tfs/src/index.ts

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import { Buffer } from "buffer";
import { FS } from "./fs";
import { Path } from "./path";
import { Shell } from "./shell";
import { version } from "../package.json";

/**
 * The TFS File System Library
 */
export class TFS {
	handle: FileSystemDirectoryHandle;
	fs: FS;
	path: Path;
	buffer: typeof Buffer = Buffer;
	shell: Shell;
	version: string = version;
	/** Polyfill for legacy applications that still expect shell as a uninitialized class */
	sh?: typeof Shell;

	constructor(handle: FileSystemDirectoryHandle) {
		this.handle = handle;
		this.fs = new FS(this.handle);
		this.path = new Path();
		this.shell = new Shell(this.handle);
		this.sh = Shell;
	}

	/**
	 * Creates a new instance of TFS
	 * @returns {Promise<TFS>} Instance of TFS
	 */
	static async init(): Promise<TFS> {
		const handle = await navigator.storage.getDirectory();
		return new TFS(handle);
	}

	/**
	 * Initializes TFS for use in a service worker
	 * @returns {void}
	 * @example
	 * // In your service worker file
	 * importScripts("/tfs/tfs.js");
	 * tfs.initSw();
	 * // TFS is now defined on self
	 */
	static initSw(): void {
		navigator.storage.getDirectory().then(handle => {
			const tfs = new TFS(handle);
			self.tfs = tfs;
			console.log("TFS is ready");
		});
	}
}

if (typeof window !== "undefined") {
	window.tfs = TFS as unknown as TFS;
}