add banbanmini backend

talkingq-url/services/tts_audio_cleaner.py

@@ -0,0 +1,28 @@
+import os
+from pathlib import Path
+from config import settings
+import asyncio
+
+
+class TTSAudioCleaner:
+    
+
+    @staticmethod
+    async def prepare_output_directory():
+        
+        tts_dir = Path(settings.assets_dir) / "tts_audio"
+        loop = asyncio.get_running_loop()
+        await loop.run_in_executor(None, lambda: os.makedirs(tts_dir, exist_ok=True))
+        return tts_dir
+
+    @staticmethod
+    def generate_filename(device_id: str, session_id: str, sequence_number: int):
+        seq_str = f"{sequence_number:02d}"
+        file_name = f"{device_id}_{session_id}_{seq_str}"
+        output_file_prefix = os.path.join(settings.assets_dir, "tts_audio", file_name)
+        return output_file_prefix
+
+    @staticmethod
+    def generate_audio_url(audio_file_path: str):
+        file_name = os.path.basename(audio_file_path)
+        return f"assets/tts_audio/{file_name}"