have messages working but streaming still not fixed yet

Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>

llama_stack/ui/lib/audio-utils.ts

@@ -0,0 +1,50 @@
+type RecordAudioType = {
+  (stream: MediaStream): Promise<Blob>
+  stop: () => void
+  currentRecorder?: MediaRecorder
+}
+
+export const recordAudio = (function (): RecordAudioType {
+  const func = async function recordAudio(stream: MediaStream): Promise<Blob> {
+    try {
+      const mediaRecorder = new MediaRecorder(stream, {
+        mimeType: "audio/webm;codecs=opus",
+      })
+      const audioChunks: Blob[] = []
+
+      return new Promise((resolve, reject) => {
+        mediaRecorder.ondataavailable = (event) => {
+          if (event.data.size > 0) {
+            audioChunks.push(event.data)
+          }
+        }
+
+        mediaRecorder.onstop = () => {
+          const audioBlob = new Blob(audioChunks, { type: "audio/webm" })
+          resolve(audioBlob)
+        }
+
+        mediaRecorder.onerror = () => {
+          reject(new Error("MediaRecorder error occurred"))
+        }
+
+        mediaRecorder.start(1000)
+        ;(func as RecordAudioType).currentRecorder = mediaRecorder
+      })
+    } catch (error) {
+      const errorMessage =
+        error instanceof Error ? error.message : "Unknown error occurred"
+      throw new Error("Failed to start recording: " + errorMessage)
+    }
+  }
+
+  ;(func as RecordAudioType).stop = () => {
+    const recorder = (func as RecordAudioType).currentRecorder
+    if (recorder && recorder.state !== "inactive") {
+      recorder.stop()
+    }
+    delete (func as RecordAudioType).currentRecorder
+  }
+
+  return func as RecordAudioType
+})()