import os
import uuid
from functools import partial
from aiogram import types, Dispatcher, F
import ffmpeg

async def handle_voice_and_video(message: types.Message, redis_service, storage_path: str):
    file_id = None
    if message.content_type == types.ContentType.VOICE:
        file_id = message.voice.file_id
    elif message.content_type == types.ContentType.VIDEO_NOTE:
        file_id = message.video_note.file_id

    if not file_id:
        return

    file = await message.bot.get_file(file_id)
    file_path = file.file_path

    file_uuid = str(uuid.uuid4())
    original_filename = os.path.basename(file_path)
    temp_filename = f"{file_uuid}_{original_filename}"
    
    os.makedirs(storage_path, exist_ok=True)
    
    temp_destination = os.path.join(storage_path, temp_filename)

    await message.bot.download_file(file_path, temp_destination)

    if not os.path.exists(temp_destination):
        print(f"❌ Ошибка: Файл {temp_destination} не был загружен!")
    else:
        print(f"✅ Файл успешно загружен: {temp_destination}")


    wav_filename = f"{file_uuid}.wav"
    wav_destination = os.path.join(storage_path, wav_filename)
    
    convert_to_wav(temp_destination, wav_destination)

    if not os.path.exists(wav_destination):
        print(f"❌ Ошибка: WAV-файл {wav_destination} не был создан!")
    else:
        print(f"✅ WAV-файл успешно создан: {wav_destination}")

    os.remove(temp_destination)

    task_data = {
        "uuid": file_uuid,
        "file_path": wav_destination,
        "user_id": message.from_user.id,
        "chat_id": message.chat.id,
        "message_id": message.message_id
    }
    
    await redis_service.publish_task(task_data)
    await message.reply("Your message has been received, converted to WAV, and queued for processing.\nWaiting for transcription...")

    text = await redis_service.wait_for_text(
        user_id=message.from_user.id,
        chat_id=message.chat.id,
        message_id=message.message_id
    )
    if text:
        await message.reply(f"Transcription result:\n{text}")
    else:
        await message.reply("Sorry, transcription result was not received within the timeout.")

def convert_to_wav(input_file: str, output_file: str):
    """
    Конвертирует любой аудио/видеофайл в .wav с частотой 16kHz, 1 канал (моно).
    """
    try:
        ffmpeg.input(input_file).output(
            output_file,
            format="wav",
            acodec="pcm_s16le",
            ac=1, 
            ar="16000"
        ).run(overwrite_output=True)
    except Exception as e:
        print(f"Error converting {input_file} to WAV: {e}")

def register_audio_handlers(dp: Dispatcher, redis_service, storage_path: str):
    # Оборачиваем callback для передачи дополнительных аргументов
    handler_callback = partial(handle_voice_and_video, redis_service=redis_service, storage_path=storage_path)
    # Регистрируем хэндлер с фильтром по content_type
    dp.message.register(handler_callback, F.content_type.in_({types.ContentType.VOICE, types.ContentType.VIDEO_NOTE}))