"""YouTube downloader."""

import logging
from typing import Any, Dict
import config
from download.base import my_hook
import yt_dlp

logger = logging.getLogger("syllabus")


class youtube:
    """YouTube content downloader."""

    @staticmethod
    def ydl(url: str, location: str) -> None:
        """Download a YouTube video to the specified location."""
        try:
            logger.info(f'Received download request for {url}')

            dl_ops: Dict[str, Any] = {
                'progress_hooks': [my_hook],
                'download_archive': str(config.YOUTUBE_ARCHIVE),
                'paths': {
                    'temp': str(config.TEMP_DIR),
                    'home': location
                },
                'outtmpl': '%(uploader)s/%(title)s.%(ext)s'
            }

            # Audio format configuration
            audio_format_config = {
                'format': config.AUDIO_FORMAT,
                'postprocessors': [{
                    'key': 'FFmpegExtractAudio',
                    'preferredcodec': 'mp3',
                    'preferredquality': config.AUDIO_QUALITY,
                }, {
                    'key': 'FFmpegMetadata',
                    'add_metadata': True,
                }]
            }

            # Apply format-specific options based on location
            if location == str(config.PODCASTS_DIR) or location == str(config.ASMR_DIR):
                dl_ops.update(audio_format_config)
            elif location == str(config.YOUTUBE_DIR):
                dl_ops['format'] = 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best'
                dl_ops['cookiefile'] = str(config.YOUTUBE_COOKIES)
            else:
                dl_ops['format'] = 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best'

            with yt_dlp.YoutubeDL(dl_ops) as ydl:
                ydl.download([url])
            logger.info(f"Download completed for {url}")
        except Exception as e:
            logger.error(f"Error downloading {url}: {e}")
            raise