import errno
import os

from fastapi import HTTPException

from src.core.result import ResultTypeEnum, Result
from src.core.ydl import VideoDownloader
from src.exceptions.download_exceptions import SiteNotImplementedException


class BaseParser:
    BASE_ENCODING = 'utf-8'
    BASE_DIR = None

    def __init__(self, params: dict):
        self.params = params

    def video_download(self):
        ydl_opts = {
            "format": self.params["format"],
            "merge_output_format": self.params["merge_output_format"],
            'outtmpl': self.params["outtmpl"],
            "quiet": True
        }
        downloader = VideoDownloader(link=self.params["link"], ydl_opts=ydl_opts)
        video_info = downloader.get_info()
        if os.path.exists(
                os.path.join(os.getcwd() + f"Youtube/{video_info['id']}_{video_info['width']}.{video_info['ext']}")
        ):
            return Result(result_type=ResultTypeEnum.EXIST)
        try:
            downloader.ydl_opts["quiet"] = False
            result = downloader.download()
            return result
        except SiteNotImplementedException as ex:
            raise HTTPException(
                status_code=400,
                detail=ex.message
            )

    def make_sure_path_exists(self,):
        try:
            os.makedirs(self.BASE_DIR)
        except OSError as exception:
            if exception.errno != errno.EEXIST:
                raise