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import pickle
import os.path
from os import getenv
from datetime import date
from dataclasses import dataclass
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
@dataclass
class SheetsRow:
interval: str
name: str
last_done: str
# If modifying these scopes, delete the file token.pickle.
SCOPES = ["https://www.googleapis.com/auth/spreadsheets.readonly"]
def _get_or_default(list, index, default=""):
try:
return list[index]
except IndexError:
return default
def _row_to_dataclass(values):
interval = _get_or_default(values, 0, "")
name = _get_or_default(values, 1, "")
today = date.today()
last_done = _get_or_default(values, 2, today.strftime("%Y-%m-%d"))
return SheetsRow(interval, name, last_done)
def authenticate_and_fetch_sheets_data():
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("sheets", "v4", credentials=creds)
# Call the Sheets API
sheet = service.spreadsheets()
result = (
sheet.values()
.get(
spreadsheetId=getenv("SHEETS_SPREADSHEET_ID"),
range=getenv("SHEETS_RANGE"),
)
.execute()
)
rows = result.get("values", [])
return map(_row_to_dataclass, rows)
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