Added `skynet.ts` with functions for uploading and downloading

src/skynet.ts

@@ -0,0 +1,37 @@
+import { FileData } from "./definitions";
+import fs, { ReadStream } from 'fs-extra';
+import { path } from './utils';
+const { SkynetClient } = require('@skynetlabs/skynet-nodejs');
+
+function getFullPath(fileData: FileData) {
+	return path('share', '.skynet', `${fileData.randomId}${fileData.ext}`.replace(/sia\:\/\//gi, ''));
+}
+
+// Create the SkyNet client
+export const Skynet = new SkynetClient();
+
+export function SkynetUpload(path: string): Promise<string> {
+	return new Promise(async (resolve, reject) => {
+		try {
+			const skylink = await Skynet.uploadFile(path);
+			resolve(skylink);
+		} catch (error) {
+			reject(error);
+		}
+	});
+}
+
+export function SkynetDownload(fileData: FileData): Promise<ReadStream> {
+	return new Promise((resolve: Function, reject) =>
+		fs.ensureDir(path('share', '.skynet'))
+			.then(async () => {
+				await Skynet.downloadFile(getFullPath(fileData), fileData.randomId);
+				return fs.createReadStream(getFullPath(fileData))
+			})
+			.then((stream) => resolve(stream))
+			.catch(reject));
+}
+
+export function SkynetDelete(fileData: FileData) {
+	return fs.remove(getFullPath(fileData));
+}