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}"