check validity of stream before returning

src/utils/valid.ts

@@ -0,0 +1,17 @@
+import { Stream } from '@/providers/streams';
+
+export function isValidStream(stream: Stream | undefined): boolean {
+  if (!stream) return false;
+  if (stream.type === 'hls') {
+    if (!stream.playlist) return false;
+    return true;
+  }
+  if (stream.type === 'file') {
+    const validQualities = Object.values(stream.qualities).filter((v) => v.url.length > 0);
+    if (validQualities.length === 0) return false;
+    return true;
+  }
+
+  // unknown file type
+  return false;
+}