Will thumbnails render on Windows?

Metadata.ts

@@ -1,8 +1,7 @@
 import axios from 'axios';
 import { terminal as term } from 'terminal-kit';
 import { Metadata, Session } from './Types';
-import fs from 'fs';
-import os from 'os';
+import { drawThumbnail } from './Thumbnail';
 
 
 export async function getVideoMetadata(videoGuids: string[], session: Session): Promise<Metadata[]> {

Thumbnail.ts

@@ -1,27 +1,16 @@
-import os from 'os';
 import { terminal as term } from 'terminal-kit';
+import { execSync } from 'child_process';
 
 
-if (os.platform() !== "win32") {
-    term.brightWhite("Platform is not Windows, let's draw some thumbnails!\n");
-    let a = async () => {
-        response = await axios.get(posterImageUrl, {
-            headers: {
-                Authorization: `Bearer ${session.AccessToken}`
-            },
-            responseType: 'stream'
-        });
-        
-        const writer = fs.createWriteStream('.thumbnail.png');
-        response.data.pipe(writer);
-
-        return new Promise((resolve, reject) => {
-            writer.on('finish', resolve);
-            writer.on('error', reject);
-        });
-        
-    };
-    await a();
-}
-
+export function drawThumbnail(posterImage: string, accessToken: string): void {
+    let fetchCmd = `ffmpeg -hide_banner -loglevel warning ` +
+        `-headers "Authorization: Bearer ${accessToken}\r\n" ` +
+        `-i "${posterImage}" -y .thumbnail.png`;
+    execSync(fetchCmd, { stdio: 'inherit' });
+    try {
         term.drawImage('.thumbnail.png', { shrink: { width: 50, height: 50 } });
+    }
+    catch (e) {
+        console.error(e);
+    }
+}

destreamer.ts

@@ -2,6 +2,7 @@ import { BrowserTests } from './Tests';
 import { TokenCache } from './TokenCache';
 import { getVideoMetadata } from './Metadata';
 import { Metadata, Session } from './Types';
+import { drawThumbnail } from './Thumbnail';
 
 import { execSync } from 'child_process';
 import puppeteer from 'puppeteer';
@@ -171,9 +172,13 @@ async function downloadVideo(videoUrls: string[], outputDirectory: string, sessi
     
     console.log("Fetching title and HLS URL...");
     let metadata: Metadata[] = await getVideoMetadata(videoGuids, session);
-    metadata.forEach(video => {
+    await Promise.all(metadata.map(async video => {
         video.title = sanitize(video.title);
         term.blue(`\nDownloading Video: ${video.title}\n`);
+
+        drawThumbnail(video.posterImage, session.AccessToken);
+        await sleep(100); // there's something wrong with drawThumbnail we should not need this
+
         console.log('Spawning youtube-dl with cookie and HLS URL...');
         const format = argv.format ? `-f "${argv.format}"` : "";
         var youtubedlCmd = 'youtube-dl --no-call-home --no-warnings ' + format +
@@ -185,7 +190,7 @@ async function downloadVideo(videoUrls: string[], outputDirectory: string, sessi
         }
 
         execSync(youtubedlCmd, { stdio: 'inherit' });
-    });
+    }));
 }