X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=google_assistant.py;h=b767df75f4a56f4b4ec84be3abedd16b2e8a591b;hb=532df2c5b57c7517dfb3dddd8c1358fbadf8baf3;hp=b34197a3e60d0db9eff5c9cc6609ebe04e581bab;hpb=709370b2198e09f1dbe195fe8813602a3125b7f6;p=python_utils.git

diff --git a/google_assistant.py b/google_assistant.py
index b34197a..b767df7 100644
--- a/google_assistant.py
+++ b/google_assistant.py
@@ -1,7 +1,16 @@
 #!/usr/bin/env python3
 
+# © Copyright 2021-2022, Scott Gasch
+
+"""A module to serve as a local client library around HTTP calls to
+the Google Assistant via a local gateway.
+
+"""
+
 import logging
-from typing import NamedTuple
+import warnings
+from dataclasses import dataclass
+from typing import Optional
 
 import requests
 import speech_recognition as sr  # type: ignore
@@ -19,22 +28,25 @@ parser.add_argument(
     type=str,
     default="http://kiosk.house:3000",
     metavar="URL",
-    help="How to contact the Google Assistant bridge"
+    help="How to contact the Google Assistant bridge",
 )
 parser.add_argument(
     "--google_assistant_username",
     type=str,
     metavar="GOOGLE_ACCOUNT",
     default="scott.gasch",
-    help="The user account for talking to Google Assistant"
+    help="The user account for talking to Google Assistant",
 )
 
 
-class GoogleResponse(NamedTuple):
-    success: bool
-    response: str
-    audio_url: str
-    audio_transcription: str
+@dataclass
+class GoogleResponse:
+    """A response wrapper."""
+
+    success: bool = False
+    response: str = ''
+    audio_url: str = ''
+    audio_transcription: Optional[str] = None  # None if not available.
 
     def __repr__(self):
         return f"""
@@ -55,7 +67,7 @@ def ask_google(cmd: str, *, recognize_speech=True) -> GoogleResponse:
     is True, perform speech recognition on the audio response from Google so as
     to translate it into text (best effort, YMMV).
     """
-    logging.debug(f"Asking google: '{cmd}'")
+    logging.debug("Asking google: '%s'", cmd)
     payload = {
         "command": cmd,
         "user": config.config['google_assistant_username'],
@@ -65,15 +77,16 @@ def ask_google(cmd: str, *, recognize_speech=True) -> GoogleResponse:
     success = False
     response = ""
     audio = ""
-    audio_transcription = ""
+    audio_transcription: Optional[str] = ""
     if r.status_code == 200:
         j = r.json()
+        logger.debug(j)
         success = bool(j["success"])
         response = j["response"] if success else j["error"]
         if success:
             logger.debug('Google request succeeded.')
             if len(response) > 0:
-                logger.debug(f"Google said: '{response}'")
+                logger.debug("Google said: '%s'", response)
         audio = f"{config.config['google_assistant_bridge']}{j['audio']}"
         if recognize_speech:
             recognizer = sr.Recognizer()
@@ -89,18 +102,25 @@ def ask_google(cmd: str, *, recognize_speech=True) -> GoogleResponse:
                     audio_transcription = recognizer.recognize_google(
                         speech,
                     )
-                    logger.debug(f"Transcription: '{audio_transcription}'")
+                    logger.debug("Transcription: '%s'", audio_transcription)
                 except sr.UnknownValueError as e:
                     logger.exception(e)
-                    logger.warning('Unable to parse Google assistant\'s response.')
+                    msg = 'Unable to parse Google assistant\'s response.'
+                    logger.warning(msg)
+                    warnings.warn(msg, stacklevel=3)
                     audio_transcription = None
+        return GoogleResponse(
+            success=success,
+            response=response,
+            audio_url=audio,
+            audio_transcription=audio_transcription,
+        )
     else:
-        logger.error(
-            f'HTTP request to {url} with {payload} failed; code {r.status_code}'
+        message = f'HTTP request to {url} with {payload} failed; code {r.status_code}'
+        logger.error(message)
+        return GoogleResponse(
+            success=False,
+            response=message,
+            audio_url=audio,
+            audio_transcription=audio_transcription,
         )
-    return GoogleResponse(
-        success=success,
-        response=response,
-        audio_url=audio,
-        audio_transcription=audio_transcription,
-    )