refactor: use enum to specify type

voice/openai/openai_voice.py

@@ -4,6 +4,7 @@ google voice service
 """
 import json
 import openai
+from bridge.reply import Reply, ReplyType
 from config import conf
 from common.log import logger
 from voice.voice import Voice
@@ -16,16 +17,15 @@ class OpenaiVoice(Voice):
     def voiceToText(self, voice_file):
         logger.debug(
             '[Openai] voice file name={}'.format(voice_file))
-        reply={}
         try:
             file = open(voice_file, "rb")
             result = openai.Audio.transcribe("whisper-1", file)
             text = result["text"]
-            reply = {"type": "TEXT", "content": text}
+            reply = Reply(ReplyType.TEXT, text)
             logger.info(
                 '[Openai] voiceToText text={} voice file name={}'.format(text, voice_file))
         except Exception as e:
-            reply = {"type": "ERROR", "content": str(e)}
+            reply = Reply(ReplyType.ERROR, str(e))
         finally:
             return reply