from video import Video
from threading import Thread
from sanitize_filename import sanitize
from pathlib import Path


class Manager:
    def __init__(self):
        self.video_list: list[Video] = []
        self.bvid_set = set()

    def add_videos_by_number(self, video_numbers: list[str]):
        for video_number in video_numbers:
            try:
                video = Video(video_number)
            except:
                continue
            if (bvid := video.v.get_bvid()) not in self.bvid_set:
                self.bvid_set.add(bvid)
                self.video_list.append(video)
                Thread(target=video.get_info).start()

    def download(self, id: int, parent_dir: str | Path = Path(".")):
        if isinstance(parent_dir, str):
            parent_dir = Path(parent_dir)
        if not 0 <= id < len(self.video_list):
            raise Exception(f"id ({id}) out of range!")
        video = self.video_list[id]
        if not hasattr(video, "title"):
            raise Exception(f"No information for video {video.number}")
        filename = sanitize(video.title) + ".m4a"
        t = Thread(target=video.download, args=(parent_dir / filename,))
        t.start()

    def get_progress(self):
        return [
            {
                "number": v.number,
                "title": v.title,
                "author": v.author,
                "received": v.received_bytes,
                "total": v.length,
            }
            for v in self.video_list
        ]