import sys

import yt_dlp

from music_player import Track

ydl_opts = {
    "format": "mp3/bestaudio/best",
    # ℹ️ See help(yt_dlp.postprocessor) for a list of available Postprocessors and their arguments
    "postprocessors": [
        {
            "key": "FFmpegExtractAudio",
            "preferredcodec": "mp3",
        }
    ],
    "paths": {"home": "queue"},
    "outtmpl": {"default": "%(artist)s - %(track)s [%(id)s].%(ext)s"},
}


class DownloadService:
    def __init__(self) -> None:
        self.ydl = yt_dlp.YoutubeDL(ydl_opts)

    def download(self, url: str) -> Track:
        info = self.ydl.extract_info(url, download=True)

        try:
            filepath = info["requested_downloads"][-1]["filepath"]  # type: ignore
        except KeyError:
            raise ValueError("Could not ")
        track = Track(
            artist=info.get("artist", None),  # type: ignore
            title=info.get("title", None),  # type: ignore
            duration=info.get("duration", None),  # type: ignore
            filepath=filepath,  # type: ignore
        )

        print(f"Finished processing {track}")

        return track


def main():
    if len(sys.argv) < 2:
        sys.exit(1)

    qser = DownloadService()
    qser.download(sys.argv[1])


if __name__ == "__main__":
    main()