import pytube
import os
from pytube import YouTube
from pydub import AudioSegment

def download_and_compress_youtube_audio(youtube_url):
    """Downloads the audio from a YouTube video, compresses it, renames it to the first twelve characters, and returns the downloaded file path."""

    try:
        # Create a YouTube object
        yt = YouTube(youtube_url)

        # Get the audio stream
        audio = yt.streams.filter(only_audio=True).first()

        # Download the audio
        print("Downloading...")
        audio.download()

        # Get the original filename
        original_filename = audio.default_filename

        # Extract the first twelve characters and change the file extension to .mp3
        compressed_filename = original_filename[:12] + '_compressed.mp3'

        # Load the downloaded audio file
        audio_segment = AudioSegment.from_file(original_filename)

        # Compress the audio file (e.g., by reducing the bitrate)
        audio_segment.export(compressed_filename, format="mp3", bitrate="64k")

        # Remove the original downloaded file
        os.remove(original_filename)

        print("Download and compression complete! Audio saved to:", compressed_filename)
        return compressed_filename

    except Exception as e:
        print("An error occurred:", e)
        return None

# Example usage
youtube_url = "https://www.youtube.com/watch?v=your_video_id"
download_and_compress_youtube_audio(youtube_url)