import pickle
import os.path
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
from datetime import datetime
import random


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

# The ID and range of a sample spreadsheet.
SAMPLE_SPREADSHEET_ID = "1_ickKJa7tkJeA6uDfi8kIdOoUYHq6s-cJCiws_pp8W4"
SAMPLE_RANGE_NAME = 'Respuestas de formulario 1!D2:D'


def main():
    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()
        # Save the credentials for the next run
        with open('token.pickle', 'wb') as token:
            pickle.dump(creds, token)

    service = build('sheets', 'v4', credentials=creds)

    # Call the Sheets API
    sheet = service.spreadsheets().get(spreadsheetId=SAMPLE_SPREADSHEET_ID).execute()
    print(sheet['properties']['title'])
    result = service.spreadsheets().values().get(spreadsheetId=SAMPLE_SPREADSHEET_ID,
                                                 range=SAMPLE_RANGE_NAME).execute()
    values = result.get('values', [])

    if not values:
        print('No data found :/')
    else:
        print("\tIt looks like there is people interested, great!")
        print("\tChoose one random (use twitter handle)")
        print("\tDatetime: {}".format(datetime.now().isoformat()))
        print("\tThe winner is...\n")

        tw_handles = [r[0].strip('@') for r in values]
        winner = random.choice(tw_handles)
        print("\t🎉🎉🎉🎉🎉🎉🎉")
        print("\t🎉🎉  @{}".format(winner))
        print("\t🎉🎉🎉🎉🎉🎉🎉")

        print("Congratulations!")

if __name__ == '__main__':
    main()