from __future__ import print_function
import pickle
import os.path
from googleapiclient.http import MediaFileUpload
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

# If modifying these scopes, delete the file token.pickle.
SCOPES = ['https://www.googleapis.com/auth/drive']


def main():
    """Shows basic usage of the Drive v3 API.
    Prints the names and ids of the first 10 files the user has access to.
    """
    creds = None
    # The file token.pickle stores the user's access and refresh tokens, and is
    # created automatically when the authorization flow completes for the first
    # time.
    if os.path.exists('token.pickle'):
        with open('token.pickle', 'rb') as token:
            creds = pickle.load(token)
    # If there are no (valid) credentials available, let the user log in.
    if not creds or not creds.valid:
        if creds and creds.expired and creds.refresh_token:
            creds.refresh(Request())
        else:
            flow = InstalledAppFlow.from_client_secrets_file(
                'credentials.json', SCOPES)
            creds = flow.run_local_server(port=0)
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('drive', 'v3', credentials=creds)

    media = MediaFileUpload(
        'big.jpeg',
        mimetype='image/jpeg',
        resumable=True
    )
    request = service.files().create(
        media_body=media,
        body={'name': 'Big', 'parents': ['']}
    )
    response = None
    while response is None:
        status, response = request.next_chunk()
        if status:
            print("Uploaded %d%%." % int(status.progress() * 100))
    print("Upload Complete!")


if __name__ == '__main__':
    main()