from typing import List
from app.utils.logger import logger

def load_local_playlist(playlist_path: str) -> List[str]:
    """
    Load a local playlist from a m3u or m3u8 file.
    Skip # comments and empty lines.

    Args:
        playlist_path (str): The path to the playlist file.

    Returns:
        list: A list of songs in the playlist.
    """
    try:
        result = []
        with open(playlist_path, 'r', encoding="utf-8") as file:
            for line in file:
                line = line.strip()
                if not line:
                    # Skip empty lines
                    continue
                if line.startswith('#'):
                    # Skip comments
                    continue
                result.append(line)
        logger.info(f"Loaded {len(result)} songs from the playlist: {playlist_path}")
        return result
    except FileNotFoundError:
        logger.error(f"Error: The file {playlist_path} does not exist.")
        return []
    except Exception as e:
        logger.error(f"An error occurred while loading the playlist: {e}")
        return []