add listen

listen.py

@@ -11,6 +11,7 @@ from pydub import AudioSegment
 import ffmpeg
 import re
 import io  # for streaming S3 bytes in HF/AWS mode
+import json  # <-- added for JSON creds parsing
 
 # Optional (only used in AWS mode)
 try:
@@ -86,8 +87,20 @@ COHERE_API_KEY = os.getenv("COHERE_API_KEY", "")
 COHERE_API_URL = 'https://api.cohere.com/v2/chat'
 # ---------------------------------------------------------------------------
 
-# Google Cloud Speech-to-Text Configuration
-speech_client = speech.SpeechClient()
+# --- Google Cloud Speech-to-Text client init (prefers HF secret JSON) ---
+def _make_speech_client():
+    sa_json = os.getenv("GOOGLE_APPLICATION_CREDENTIALS_JSON")
+    if sa_json:
+        try:
+            info = json.loads(sa_json)
+            return speech.SpeechClient.from_service_account_info(info)
+        except Exception as e:
+            print(f"Failed to parse GOOGLE_APPLICATION_CREDENTIALS_JSON: {e}")
+            # fall through to default ADC
+    return speech.SpeechClient()
+
+speech_client = _make_speech_client()
+# -------------------------------------------------------------------------
 
 # ------------- Cohere v2 helper (extract text from chat response) -------------
 def _extract_text_v2(resp_json: dict) -> str: