ConnectionInfo and the db ConnectionRow types are now completely seperate things. Started on audio fetching yay!

src/routes/api/audio/+server.ts

@@ -0,0 +1,39 @@
+import type { RequestHandler } from '@sveltejs/kit'
+import { Connections } from '$lib/server/connections'
+import ytdl from 'ytdl-core'
+
+export const GET: RequestHandler = async ({ url, request }) => {
+    const connectionId = url.searchParams.get('connectionId')
+    const id = url.searchParams.get('id')
+    if (!(connectionId && id)) return new Response('Missing query parameter', { status: 400 })
+    const range = request.headers.get('range')
+    if (!range) return new Response('Missing Range Header')
+
+    const videourl = `http://www.youtube.com/watch?v=${id}`
+
+    const videoInfo = await ytdl.getInfo(videourl)
+    const format = ytdl.chooseFormat(videoInfo.formats, { quality: 'highestaudio', filter: 'audioonly' })
+
+    const audioSize = format.contentLength
+    const CHUNK_SIZE = 5 * 10 ** 6
+    const start = Number(range.replace(/\D/g, ''))
+    const end = Math.min(start + CHUNK_SIZE, Number(audioSize) - 1)
+    const contentLength = end - start + 1
+
+    const headers = new Headers({
+        'Content-Range': `bytes ${start}-${end}/${audioSize}`,
+        'Accept-Ranges': 'bytes',
+        'Content-Length': contentLength.toString(),
+        'Content-Type': 'audio/webm',
+    })
+
+    const partialStream = ytdl(videourl, { format, range: { start, end } })
+
+    // @ts-ignore IDK enough about streaming to understand what the problem is here
+    // but it appears that ytdl has a custom version of a readable stream type they use internally
+    // and is what gets returned by ytdl(). Svelte will only allow you to send back the type ReadableStream
+    // so it ts gets mad if you try to send back their internal type.
+    // IDK to me a custom readable type seems incredibly stupid but what do I know?
+    // Currently haven't found a way to convert their readable to ReadableStream type, casting doesn't seem to work either.
+    return new Response(partialStream, { status: 206, headers })
+}