from typing import List
from xmlrpc.client import Boolean
from time import sleep
import requests, json, os, yt_dlp


apikey = os.environ['apikey']
playlistId = os.environ['playlistid']
saveDirectory = '/videos'


def getPlaylistVideoIDs() -> List:
    url = "https://www.googleapis.com/youtube/v3/playlistItems"

    querystring = {
        "key": apikey,
        "playlistId": playlistId,
        "maxResults": "50",
        "part":"contentDetails",
        }

    payload = ""
    response = requests.request("GET", url, data=payload, params=querystring)

    videoIDs = []

    for video in json.loads(response.text)['items']:
        videoIDs.append(video['contentDetails']['videoId'])

    return videoIDs

def getVideosOnDisk() -> List:
    movies = os.listdir(saveDirectory)
    moviesUpdated = []
    for movie in movies:
        moviesUpdated.append(movie.split("[")[1].split(']')[0])

    return set(moviesUpdated)

def downloadVideo(videoId) -> Boolean:
    ydl_opts = { 'outtmpl': f'{saveDirectory}/%(title)s[%(id)s].%(ext)s'}
    with yt_dlp.YoutubeDL(ydl_opts) as ydl:
        ydl.download([f'https://www.youtube.com/watch?v={videoId}'])
        return True

def main() -> None:
    IDs = getPlaylistVideoIDs()
    alreadyDL = getVideosOnDisk()
    for ID in IDs:
        print(f"Checking disk for {ID}: ", end="")
        if ID not in alreadyDL:
            print("Downloading...", end="")
            downloadVideo(ID)
            print("\n\n\n")
        else:
            print("Already in Library")

if __name__ == "__main__":
    while True():
        main()
        sleep(600)